{"id":5767,"date":"2025-12-24T05:27:13","date_gmt":"2025-12-24T05:27:13","guid":{"rendered":"https:\/\/korea-transmission.com\/?p=5767"},"modified":"2025-12-24T05:27:13","modified_gmt":"2025-12-24T05:27:13","slug":"gb-t-3-1997-metric-thread-ends-and-chamfers-standard","status":"publish","type":"post","link":"https:\/\/korea-transmission.com\/vi\/blog\/gb-t-3-1997-metric-thread-ends-and-chamfers-standard\/","title":{"rendered":"Ti\u00eau chu\u1ea9n GB\/T 3-1997 v\u1ec1 \u0111\u1ea7u ren v\u00e0 v\u00e1t m\u00e9p h\u1ec7 m\u00e9t"},"content":{"rendered":"<h2 style=\"font-size: 24px; margin-top: 40px;\">Gi\u1edbi thi\u1ec7u v\u1ec1 Ti\u00eau chu\u1ea9n<\/h2>\n<p style=\"margin-bottom: 20px;\">Ti\u00eau chu\u1ea9n GB\/T 3-1997 quy \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc cho c\u00e1c ph\u1ea7n nh\u00f4 ra, ph\u1ea7n l\u00f5m, vai v\u00e0 ph\u1ea7n v\u00e1t c\u1ee7a ren v\u00edt h\u1ec7 m\u00e9t th\u00f4ng d\u1ee5ng, \u0111\u1ea3m b\u1ea3o c\u00e1c m\u1ed1i n\u1ed1i ch\u1eafc ch\u1eafn. Ti\u00eau chu\u1ea9n n\u00e0y \u00e1p d\u1ee5ng cho c\u00e1c lo\u1ea1i ren c\u00f3 b\u01b0\u1edbc ren t\u1eeb 0,2 mm \u0111\u1ebfn 6 mm, th\u00fac \u0111\u1ea9y t\u00ednh nh\u1ea5t qu\u00e1n trong s\u1ea3n xu\u1ea5t v\u00e0 l\u1eafp r\u00e1p tr\u00ean to\u00e0n ng\u00e0nh c\u00f4ng nghi\u1ec7p c\u01a1 kh\u00ed.<\/p>\n<p style=\"margin-bottom: 20px;\">T\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi ti\u00eau chu\u1ea9n ISO 3508:1976 v\u00e0 ISO 4755:1983, ti\u00eau chu\u1ea9n n\u00e0y cung c\u1ea5p h\u01b0\u1edbng d\u1eabn cho ren ngo\u00e0i v\u00e0 ren trong, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c thay th\u1ebf l\u1eabn nhau v\u00e0 gi\u1ea3m thi\u1ec3u c\u00e1c v\u1ea5n \u0111\u1ec1 l\u1eafp r\u00e1p. N\u00f3 r\u1ea5t c\u1ea7n thi\u1ebft cho k\u1ef9 thu\u1eadt ch\u00ednh x\u00e1c, n\u01a1i m\u00e0 c\u00e1c \u0111\u1ea7u ren \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 kh\u00edt.<\/p>\n<ul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 30px;\">\n<li>Ph\u1ea1m vi: Bao g\u1ed3m c\u00e1c lo\u1ea1i ren h\u1ec7 m\u00e9t ti\u00eau chu\u1ea9n d\u00f9ng cho vi\u1ec7c l\u1eafp r\u00e1p th\u00f4ng th\u01b0\u1eddng.<\/li>\n<li>T\u1ea7m quan tr\u1ecdng: Ng\u0103n ng\u1eeba s\u1ef1 t\u1eadp trung c\u0103ng th\u1eb3ng v\u00e0 \u0111\u1ea3m b\u1ea3o qu\u00e1 tr\u00ecnh giao ph\u1ed1i di\u1ec5n ra \u0111\u00fang c\u00e1ch.<\/li>\n<li>Ph\u1ea1m vi \u00e1p d\u1ee5ng: M\u1edf r\u1ed9ng \u0111\u1ebfn c\u00e1c lo\u1ea1i ren t\u01b0\u01a1ng t\u1ef1 nh\u01b0 ren chuy\u1ec3n ti\u1ebfp.<\/li>\n<\/ul>\n<h2 style=\"font-size: 24px; margin-top: 40px;\">\u0110\u1ea7u ren ngo\u00e0i v\u00e0 vai ren<\/h2>\n<p style=\"margin-bottom: 20px;\">C\u00e1c r\u00e3nh ren ngo\u00e0i (x) v\u00e0 vai ren (a) \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh \u0111\u1ec3 tr\u00e1nh c\u00e1c c\u1ea1nh s\u1eafc nh\u1ecdn v\u00e0 \u0111\u1ea3m b\u1ea3o l\u1eafp r\u00e1p tr\u01a1n tru. K\u00edch th\u01b0\u1edbc thay \u0111\u1ed5i theo b\u01b0\u1edbc ren, v\u1edbi c\u00e1c t\u00f9y ch\u1ecdn chung, ng\u1eafn v\u00e0 d\u00e0i cho c\u00e1c nhu c\u1ea7u k\u1ebft c\u1ea5u kh\u00e1c nhau. B\u00e1n k\u00ednh \u0111\u00e1y c\u1ee7a c\u00e1c r\u00e3nh ren kh\u00f4ng \u0111\u01b0\u1ee3c nh\u1ecf h\u01a1n b\u00e1n k\u00ednh bo tr\u00f2n t\u1ed1i thi\u1ec3u \u0111\u1ed1i v\u1edbi ren to\u00e0n ph\u1ea7n.<\/p>\n<div class=\"table-container\" style=\"overflow-x: auto; margin-bottom: 20px;\">\n<table style=\"border-collapse: collapse; width: 100%; margin-bottom: 20px;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\" rowspan=\"2\">B\u01b0\u1edbc ren P (mm)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\" colspan=\"2\">H\u1ebft h\u00e0ng x (t\u1ed1i \u0111a)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\" colspan=\"3\">Vai a (t\u1ed1i \u0111a)<\/th>\n<\/tr>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">T\u1ed5ng quan<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">Ng\u1eafn<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">T\u1ed5ng quan<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">D\u00e0i<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">Ng\u1eafn<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.5<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.6<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.05<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.7<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.8<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.9<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.2<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.5<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.6<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.5<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.5<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">10.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">14<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">8<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">11<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">13.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">9<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">12.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">15<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">20<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">10<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">14<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">16.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">22<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">11<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">15<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">24<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">12<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">Th\u1ea9m quy\u1ec1n gi\u1ea3i quy\u1ebft<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u22482,5 P<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u22481,25 P<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u22483 P<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">=4 P<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">=2 P<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"margin-bottom: 20px;\">Ghi ch\u00fa: N\u00ean s\u1eed d\u1ee5ng chi\u1ec1u d\u00e0i t\u1ed5ng qu\u00e1t; d\u00f9ng chi\u1ec1u d\u00e0i ng\u1eafn cho c\u00e1c c\u1ea5u tr\u00fac b\u1ecb h\u1ea1n ch\u1ebf, chi\u1ec1u d\u00e0i d\u00e0i cho c\u00e1c s\u1ea3n ph\u1ea9m lo\u1ea1i B ho\u1eb7c C. K\u00edch th\u01b0\u1edbc t\u00ednh b\u1eb1ng mm.<\/p>\n<h2 style=\"font-size: 24px; margin-top: 40px;\">R\u00e3nh ren ngo\u00e0i<\/h2>\n<p style=\"margin-bottom: 20px;\">C\u00e1c r\u00e3nh c\u1eaft (g1, g2) gi\u00fap gi\u1ea3m \u1ee9ng su\u1ea5t t\u1ea1i c\u00e1c \u0111\u1ea7u ren, v\u1edbi \u0111\u01b0\u1eddng k\u00ednh (dg) v\u00e0 b\u00e1n k\u00ednh (r) \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh. G\u00f3c chuy\u1ec3n ti\u1ebfp \u03b1 \u00edt nh\u1ea5t l\u00e0 30\u00b0 \u0111\u1ec3 tr\u00e1nh c\u00e1c g\u00f3c nh\u1ecdn.<\/p>\n<div class=\"table-container\" style=\"overflow-x: auto; margin-bottom: 20px;\">\n<table style=\"border-collapse: collapse; width: 100%; margin-bottom: 20px;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\" rowspan=\"2\">B\u01b0\u1edbc ren P (mm)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">g2 (t\u1ed1i \u0111a)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">g1 (ph\u00fat)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">dg<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">r \u2248<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 0,4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.12<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 0,5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.16<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.05<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 0,6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.16<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 0,7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.2<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 0,7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.2<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 0,8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.2<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 1.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 1,2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 1,3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 1,6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.6<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.6<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 2.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.8<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 2,6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 3,6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.2<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 4,4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.6<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">10.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.6<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 5,7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">13.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 6,4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.5<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">15<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.5<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">17.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">11<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 7,7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.2<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">11<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">d \u2013 8.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.2<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">Th\u1ea9m quy\u1ec1n gi\u1ea3i quy\u1ebft<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u22483 P<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">–<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">–<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"margin-bottom: 20px;\">Ghi ch\u00fa: d l\u00e0 \u0111\u01b0\u1eddng k\u00ednh danh ngh\u0129a; dung sai dg l\u00e0 h13 (&gt;3 mm) ho\u1eb7c h12 (\u22643 mm). S\u1eed d\u1ee5ng \u0111\u1ec3 gi\u1ea3m \u1ee9ng su\u1ea5t trong c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ecbu t\u1ea3i tr\u1ecdng cao.<\/p>\n<h2 style=\"font-size: 24px; margin-top: 40px;\">V\u00e1t m\u00e9p ren ngo\u00e0i<\/h2>\n<p style=\"margin-bottom: 20px;\">G\u00f3c v\u00e1t m\u00e9p \u1edf \u0111\u1ea7u ren th\u01b0\u1eddng l\u00e0 45\u00b0, nh\u01b0ng c\u0169ng cho ph\u00e9p 60\u00b0 ho\u1eb7c 30\u00b0; \u0111\u1ed9 s\u00e2u \u2265 chi\u1ec1u cao ren. \u0110\u1ed1i v\u1edbi ren c\u00e1n, chi\u1ec1u d\u00e0i ch\u01b0a ho\u00e0n ch\u1ec9nh \u2264 2P \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n.<\/p>\n<h2 style=\"font-size: 24px; margin-top: 40px;\">\u0110\u1ea7u ren trong v\u00e0 vai ren<\/h2>\n<p style=\"margin-bottom: 20px;\">C\u00e1c r\u00e3nh b\u00ean trong (X) v\u00e0 vai (A) kh\u1edbp v\u1edbi ren gh\u00e9p, v\u1edbi c\u00e1c t\u00f9y ch\u1ecdn th\u00f4ng th\u01b0\u1eddng v\u00e0 ng\u1eafn. N\u00ean ch\u1ecdn lo\u1ea1i th\u00f4ng th\u01b0\u1eddng; s\u1eed d\u1ee5ng lo\u1ea1i d\u00e0i \u0111\u1ec3 tho\u00e1t phoi, lo\u1ea1i ng\u1eafn \u0111\u1ec3 h\u1ea1n ch\u1ebf s\u1ef1 v\u01b0\u1edbng m\u1eafc.<\/p>\n<div class=\"table-container\" style=\"overflow-x: auto; margin-bottom: 20px;\">\n<table style=\"border-collapse: collapse; width: 100%; margin-bottom: 20px;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\" rowspan=\"3\">B\u01b0\u1edbc ren P (mm)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\" colspan=\"2\">H\u1ebft X (t\u1ed1i \u0111a)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\" colspan=\"2\">Vai A<\/th>\n<\/tr>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\" colspan=\"2\">–<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\" rowspan=\"2\">T\u1ed5ng quan<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\" rowspan=\"2\">D\u00e0i<\/th>\n<\/tr>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">T\u1ed5ng quan<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">Ng\u1eafn<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.6<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.8<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.2<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.6<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.8<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5.6<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6.4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">8<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">10<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">12<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">14<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">16<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">18<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">14<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">22<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">14<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">24<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">26<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">21<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">29<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">20<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">23<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">32<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">22<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">11<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">35<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">24<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">28<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">38<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">Th\u1ea9m quy\u1ec1n gi\u1ea3i quy\u1ebft<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">=4P<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">=2P<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u22486~5P<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u22488~6.5P<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"margin-bottom: 20px;\">Ghi ch\u00fa: Kh\u00f4ng c\u00f3 th\u00f4ng s\u1ed1 vai ng\u1eafn \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh; k\u00edch th\u01b0\u1edbc t\u00ednh b\u1eb1ng mm \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c lo\u1ea1i b\u1ecf phoi.<\/p>\n<h2 style=\"font-size: 24px; margin-top: 40px;\">R\u00e3nh ren trong<\/h2>\n<p style=\"margin-bottom: 20px;\">C\u00e1c r\u00e3nh l\u00f5m b\u00ean trong (G1) t\u1ea1o ra s\u1ef1 gi\u1ea3m \u00e1p, v\u1edbi \u0111\u01b0\u1eddng k\u00ednh (Dg) v\u00e0 b\u00e1n k\u00ednh (R). C\u00e1c r\u00e3nh l\u00f5m ng\u1eafn d\u00e0nh cho kh\u00f4ng gian h\u1ea1n ch\u1ebf; dung sai Dg H13.<\/p>\n<div class=\"table-container\" style=\"overflow-x: auto; margin-bottom: 20px;\">\n<table style=\"border-collapse: collapse; width: 100%; margin-bottom: 20px;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\" rowspan=\"2\">B\u01b0\u1edbc ren P (mm)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\" colspan=\"2\">G1<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\" rowspan=\"2\">Dg<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\" rowspan=\"2\">R \u2248<\/th>\n<\/tr>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">T\u1ed5ng quan<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">Ng\u1eafn<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">D + 0,3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.2<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">D + 0,3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.3<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">D + 0,3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">D + 0,3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">D + 0,3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">D + 0,5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.5<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">D + 0,5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.6<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">D + 0,5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.8<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">D + 0,5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">0.9<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">D + 0,5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">D + 0,5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.2<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">D + 0,5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.5<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">14<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">D + 0,5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">1.8<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">D + 0,5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">4.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">D + 0,5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.2<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">20<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">D + 0,5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.5<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">5.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">22<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">11<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">D + 0,5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">2.8<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">24<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">D + 0,5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">3<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">Th\u1ea9m quy\u1ec1n gi\u1ea3i quy\u1ebft<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">=4P<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">=2P<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">–<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\">\u22480,5 P<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"margin-bottom: 20px;\">Ghi ch\u00fa: C\u00e1c \u0111\u01b0\u1eddng c\u1eaft ng\u1eafn cho kh\u00f4ng gian h\u1ea1n ch\u1ebf; \u0111\u01b0\u1eddng k\u00ednh danh ngh\u0129a D, dung sai Dg H13; k\u00edch th\u01b0\u1edbc t\u00ednh b\u1eb1ng mm.<\/p>\n<h2 style=\"font-size: 24px; margin-top: 40px;\">V\u00e1t m\u00e9p ren trong<\/h2>\n<p style=\"margin-bottom: 20px;\">C\u00e1c c\u1ea1nh v\u00e1t \u1edf \u0111\u1ea7u v\u00e0o th\u01b0\u1eddng l\u00e0 120\u00b0 ho\u1eb7c 90\u00b0; \u0111\u01b0\u1eddng k\u00ednh (1,05~1)D \u0111\u1ec3 d\u1ec5 d\u00e0ng \u0103n kh\u1edbp ren.<\/p>\n<h2 style=\"font-size: 24px; margin-top: 40px;\">H\u01b0\u1edbng d\u1eabn v\u00e0 l\u01b0u \u00fd khi n\u1ed9p \u0111\u01a1n<\/h2>\n<p style=\"margin-bottom: 20px;\">Ch\u1ecdn k\u00edch th\u01b0\u1edbc d\u1ef1a tr\u00ean b\u01b0\u1edbc ren v\u00e0 \u1ee9ng d\u1ee5ng; k\u00edch th\u01b0\u1edbc ti\u00eau chu\u1ea9n th\u01b0\u1eddng d\u00f9ng, k\u00edch th\u01b0\u1edbc ng\u1eafn h\u01a1n cho kh\u00f4ng gian h\u1ea1n ch\u1ebf, k\u00edch th\u01b0\u1edbc d\u00e0i h\u01a1n \u0111\u1ec3 t\u0103ng hi\u1ec7u su\u1ea5t \u1edf c\u00e1c lo\u1ea1i B\/C. \u0110\u1ea3m b\u1ea3o c\u00e1c c\u1ea1nh v\u00e1t gi\u00fap tr\u00e1nh g\u1edd v\u00e0 c\u00e1c \u0111\u01b0\u1eddng c\u1eaft s\u00e2u gi\u00fap gi\u1ea3m \u0111i\u1ec3m t\u1eadp trung \u1ee9ng su\u1ea5t.<\/p>\n<ul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 30px;\">\n<li>D\u00f9ng cho ren h\u1ec7 m\u00e9t trong m\u00e1y m\u00f3c v\u00e0 c\u00e1c lo\u1ea1i \u1ed1c v\u00edt.<\/li>\n<li>Ki\u1ec3m tra v\u1edbi c\u00e1c ti\u00eau chu\u1ea9n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng ISO \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh qu\u1ed1c t\u1ebf.<\/li>\n<li>Tr\u00e1nh nh\u1eefng thay \u0111\u1ed5i \u0111\u1ed9t ng\u1ed9t \u0111\u1ec3 gi\u1ea3m thi\u1ec3u m\u1ec7t m\u1ecfi.<\/li>\n<li>\u00c1p d\u1ee5ng cho c\u00e1c s\u1ee3i ch\u1ec9 cu\u1ed9n v\u1edbi kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t chi\u1ec1u d\u00e0i kh\u00f4ng ho\u00e0n ch\u1ec9nh.<\/li>\n<li>T\u00edch h\u1ee3p v\u00e0o ph\u1ea7n m\u1ec1m CAD \u0111\u1ec3 t\u1ea1o m\u00f4 h\u00ecnh ch\u00ednh x\u00e1c.<\/li>\n<\/ul>\n<p style=\"margin-bottom: 20px;\">Nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n c\u1ee7a ren v\u00e0 hi\u1ec7u qu\u1ea3 l\u1eafp r\u00e1p.<\/p>\n<h2 style=\"font-size: 24px; margin-top: 40px;\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/h2>\n<div class=\"faq\" style=\"margin-top: 20px;\">\n<h3 style=\"font-size: 20px; margin-bottom: 10px;\">M\u1ee5c \u0111\u00edch c\u1ee7a vi\u1ec7c ren b\u1ecb l\u1ec7ch l\u00e0 g\u00ec?<\/h3>\n<p style=\"margin-bottom: 20px;\">C\u00e1c \u0111\u01b0\u1eddng ren \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 k\u1ebft th\u00fac ren m\u1ed9t c\u00e1ch tr\u01a1n tru, gi\u1ea3m s\u1ef1 t\u1eadp trung \u1ee9ng su\u1ea5t v\u00e0 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c l\u1eafp r\u00e1p m\u00e0 kh\u00f4ng l\u00e0m h\u1ecfng c\u00e1c b\u1ed9 ph\u1eadn gh\u00e9p n\u1ed1i.<\/p>\n<h3 style=\"font-size: 20px; margin-bottom: 10px;\">Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng c\u00e1c \u0111\u01b0\u1eddng c\u1eaft ng\u1eafn \u1edf ph\u00eda d\u01b0\u1edbi?<\/h3>\n<p style=\"margin-bottom: 20px;\">C\u00e1c \u0111\u01b0\u1eddng c\u1eaft ng\u1eafn \u1edf ph\u1ea7n d\u01b0\u1edbi th\u00edch h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 c\u1ea5u tr\u00fac b\u1ecb h\u1ea1n ch\u1ebf v\u1ec1 kh\u00f4ng gian, nh\u01b0ng v\u1eabn \u0111\u1ea3m b\u1ea3o \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u v\u1ec1 t\u1ea3i tr\u1ecdng.<\/p>\n<h3 style=\"font-size: 20px;\">G\u00f3c nghi\u00eang b\u00e0n ch\u00e2n \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn k\u00edch th\u01b0\u1edbc vai nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n<p style=\"margin-bottom: 20px;\">C\u00e1c b\u01b0\u1edbc ren l\u1edbn h\u01a1n \u0111\u00f2i h\u1ecfi vai ren c\u0169ng l\u1edbn h\u01a1n t\u01b0\u01a1ng \u1ee9ng (v\u00ed d\u1ee5: ren 3P th\u00f4ng th\u01b0\u1eddng) \u0111\u1ec3 cung c\u1ea5p \u0111\u1ee7 di\u1ec7n t\u00edch ti\u1ebfp x\u00fac v\u00e0 \u0111\u1ed9 b\u1ec1n.<\/p>\n<h3 style=\"font-size: 20px; margin-bottom: 10px;\">G\u00f3c v\u00e1t m\u00e9p n\u00e0o \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb?<\/h3>\n<p style=\"margin-bottom: 20px;\">G\u00f3c 45\u00b0 cho l\u1ed1i v\u00e0o b\u00ean ngo\u00e0i, 120\u00b0 cho l\u1ed1i v\u00e0o b\u00ean trong; c\u00e1c l\u1ef1a ch\u1ecdn thay th\u1ebf nh\u01b0 60\u00b0 ho\u1eb7c 90\u00b0 t\u00f9y thu\u1ed9c v\u00e0o s\u1ef1 thu\u1eadn ti\u1ec7n trong s\u1ea3n xu\u1ea5t.<\/p>\n<h3 style=\"font-size: 20px; margin-bottom: 10px;\">Ti\u00eau chu\u1ea9n n\u00e0y c\u00f3 t\u01b0\u01a1ng th\u00edch v\u1edbi ISO kh\u00f4ng?<\/h3>\n<p style=\"margin-bottom: 20px;\">\u0110\u00fang v\u1eady, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi ti\u00eau chu\u1ea9n ISO 3508 v\u00e0 4755, \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch to\u00e0n c\u1ea7u trong thi\u1ebft k\u1ebf ren.<\/p>\n<h3 style=\"font-size: 20px; margin-bottom: 10px;\">M\u1ee9c dung sai n\u00e0o \u00e1p d\u1ee5ng cho dg?<\/h3>\n<p style=\"margin-bottom: 20px;\">h13 cho d &gt; 3 mm, h12 cho d \u2264 3 mm, duy tr\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh r\u00e3nh c\u1eaft.<\/p>\n<\/div>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Gi\u1edbi thi\u1ec7u v\u1ec1 Ti\u00eau chu\u1ea9n GB\/T 3-1997 quy \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc cho c\u00e1c ph\u1ea7n nh\u00f4 ra, ph\u1ea7n l\u00f5m, vai v\u00e0 ph\u1ea7n v\u00e1t c\u1ee7a ren v\u00edt h\u1ec7 m\u00e9t th\u00f4ng d\u1ee5ng, \u0111\u1ea3m b\u1ea3o c\u00e1c m\u1ed1i n\u1ed1i ch\u1eafc ch\u1eafn. Ti\u00eau chu\u1ea9n n\u00e0y \u00e1p d\u1ee5ng cho c\u00e1c lo\u1ea1i ren c\u00f3 b\u01b0\u1edbc ren t\u1eeb 0,2 mm \u0111\u1ebfn 6 mm, th\u00fac \u0111\u1ea9y t\u00ednh nh\u1ea5t qu\u00e1n trong s\u1ea3n xu\u1ea5t v\u00e0 l\u1eafp r\u00e1p tr\u00ean kh\u1eafp c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p c\u01a1 kh\u00ed. T\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi ISO 3508:1976 v\u00e0 ISO 4755:1983, ti\u00eau chu\u1ea9n n\u00e0y cung c\u1ea5p c\u00e1c h\u01b0\u1edbng d\u1eabn [\u2026]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[220],"tags":[],"class_list":["post-5767","post","type-post","status-publish","format-standard","hentry","category-technical-documentation-and-references"],"_links":{"self":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5767","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/comments?post=5767"}],"version-history":[{"count":1,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5767\/revisions"}],"predecessor-version":[{"id":5768,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5767\/revisions\/5768"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/media?parent=5767"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/categories?post=5767"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/tags?post=5767"}],"curies":[{"name":"trang web","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}