{"id":5632,"date":"2025-12-23T01:29:17","date_gmt":"2025-12-23T01:29:17","guid":{"rendered":"https:\/\/korea-transmission.com\/?p=5632"},"modified":"2025-12-23T01:29:17","modified_gmt":"2025-12-23T01:29:17","slug":"iso-70452011-grade-a-phillips-pan-head-screws-h-z","status":"publish","type":"post","link":"https:\/\/korea-transmission.com\/vi\/blog\/iso-70452011-grade-a-phillips-pan-head-screws-h-z\/","title":{"rendered":"\u1ed0c v\u00edt \u0111\u1ea7u tr\u00f2n Phillips lo\u1ea1i A theo ti\u00eau chu\u1ea9n ISO 7045:2011 H\/Z"},"content":{"rendered":"
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Gi\u1edbi thi\u1ec7u<\/h2>\n

Ti\u00eau chu\u1ea9n ISO 7045:2011 quy \u0111\u1ecbnh c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a v\u00edt \u0111\u1ea7u tr\u00f2n c\u00f3 r\u00e3nh ch\u1eef th\u1eadp lo\u1ea1i H ho\u1eb7c lo\u1ea1i Z, \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh l\u00e0 c\u1ea5p s\u1ea3n ph\u1ea9m A. Ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf n\u00e0y r\u1ea5t quan tr\u1ecdng trong ng\u00e0nh k\u1ef9 thu\u1eadt c\u01a1 kh\u00ed v\u00e0 s\u1ea3n xu\u1ea5t, \u0111\u1ea3m b\u1ea3o t\u00ednh \u0111\u1ed3ng nh\u1ea5t trong thi\u1ebft k\u1ebf, k\u00edch th\u01b0\u1edbc v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a \u1ed1c v\u00edt. N\u00f3 \u00e1p d\u1ee5ng cho c\u00e1c lo\u1ea1i v\u00edt \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb nhi\u1ec1u v\u1eadt li\u1ec7u kh\u00e1c nhau, bao g\u1ed3m th\u00e9p, th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 kim lo\u1ea1i m\u00e0u, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u l\u1eafp r\u00e1p ch\u00ednh x\u00e1c v\u00e0 truy\u1ec1n m\u00f4-men xo\u1eafn \u0111\u00e1ng tin c\u1eady.<\/p>\n

V\u1edbi t\u01b0 c\u00e1ch l\u00e0 m\u1ed9t chuy\u00ean gia v\u1ec1 v\u1eadt li\u1ec7u c\u01a1 kh\u00ed c\u00f3 kinh nghi\u1ec7m s\u00e2u r\u1ed9ng, t\u00f4i nh\u1ea5n m\u1ea1nh r\u1eb1ng ti\u00eau chu\u1ea9n n\u00e0y th\u00fac \u0111\u1ea9y kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c chu\u1ed7i cung \u1ee9ng to\u00e0n c\u1ea7u, gi\u1ea3m thi\u1ec3u sai s\u00f3t trong kh\u00e2u mua s\u1eafm v\u00e0 l\u1eafp r\u00e1p. Thi\u1ebft k\u1ebf \u0111\u1ea7u v\u00edt d\u1ea1ng ch\u1ea3o cung c\u1ea5p b\u1ec1 m\u1eb7t tr\u00ean bo tr\u00f2n, m\u1ecfng, l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng m\u00e0 t\u00ednh th\u1ea9m m\u1ef9 v\u00e0 kh\u1ea3 n\u0103ng l\u1eafp \u0111\u1eb7t ph\u1eb3ng l\u00e0 quan tr\u1ecdng, ch\u1eb3ng h\u1ea1n nh\u01b0 trong ng\u00e0nh \u0111i\u1ec7n t\u1eed, \u00f4 t\u00f4 v\u00e0 l\u1eafp r\u00e1p m\u00e1y m\u00f3c.<\/p>\n

Ti\u00eau chu\u1ea9n n\u00e0y bao g\u1ed3m c\u00e1c lo\u1ea1i \u1ed1c v\u00edt c\u00f3 ren h\u1ec7 m\u00e9t b\u01b0\u1edbc ren th\u00f4 t\u1eeb M1.6 \u0111\u1ebfn M10, t\u1eadp trung v\u00e0o \u0111\u1ed9 ch\u00ednh x\u00e1c k\u00edch th\u01b0\u1edbc theo dung sai c\u1ea5p A. Ti\u00eau chu\u1ea9n n\u00e0y tham chi\u1ebfu c\u00e1c ti\u00eau chu\u1ea9n ISO kh\u00e1c v\u1ec1 ren, t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 \u0111\u1ed9 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t, \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c quy tr\u00ecnh s\u1ea3n xu\u1ea5t ch\u1ea5t l\u01b0\u1ee3ng cao. Ph\u1ea7n gi\u1edbi thi\u1ec7u n\u00e0y \u0111\u1eb7t n\u1ec1n t\u1ea3ng cho vi\u1ec7c hi\u1ec3u ph\u1ea1m vi c\u1ee7a ti\u00eau chu\u1ea9n, bao g\u1ed3m c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt chi ti\u1ebft v\u1ec1 k\u00edch th\u01b0\u1edbc \u0111\u1ea7u ren, lo\u1ea1i r\u00e3nh v\u00e0 y\u00eau c\u1ea7u v\u1eadt li\u1ec7u.<\/p>\n

Vi\u1ec7c \u00e1p d\u1ee5ng ti\u00eau chu\u1ea9n ISO 7045:2011 gi\u00fap c\u00e1c k\u1ef9 s\u01b0 v\u00e0 chuy\u00ean gia mua s\u1eafm l\u1ef1a ch\u1ecdn \u0111\u01b0\u1ee3c c\u00e1c lo\u1ea1i \u1ed1c v\u00edt \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau ch\u00ed hi\u1ec7u su\u1ea5t nghi\u00eam ng\u1eb7t, gi\u1ea3m thi\u1ec3u c\u00e1c l\u1ed7i do l\u1eafp r\u00e1p kh\u00f4ng \u0111\u00fang c\u00e1ch ho\u1eb7c kh\u00f4ng t\u01b0\u01a1ng th\u00edch v\u1eadt li\u1ec7u. Ti\u00eau chu\u1ea9n n\u00e0y nh\u1ea5n m\u1ea1nh v\u00e0o c\u1ea5p s\u1ea3n ph\u1ea9m A \u0111\u1ea3m b\u1ea3o dung sai ch\u1eb7t ch\u1ebd, l\u00e0m cho c\u00e1c lo\u1ea1i \u1ed1c v\u00edt n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi k\u1ef9 thu\u1eadt ch\u00ednh x\u00e1c. Tr\u00ean th\u1ef1c t\u1ebf, c\u00e1c lo\u1ea1i \u1ed1c v\u00edt n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng y\u00eau c\u1ea7u kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n ho\u1eb7c \u0111\u1ed9 b\u1ec1n cao, t\u00f9y thu\u1ed9c v\u00e0o v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn.<\/p>\n

H\u01a1n n\u1eefa, s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa r\u00e3nh ch\u1eef th\u1eadp lo\u1ea1i H v\u00e0 lo\u1ea1i Z cho ph\u00e9p t\u1ed1i \u01b0u h\u00f3a s\u1ef1 \u0103n kh\u1edbp c\u1ee7a tua v\u00edt: lo\u1ea1i H d\u00e0nh cho c\u00e1c \u1ee9ng d\u1ee5ng m\u00f4-men xo\u1eafn cao h\u01a1n v\u00e0 lo\u1ea1i Z \u0111\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng tr\u01b0\u1ee3t. Ti\u00eau chu\u1ea9n n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n t\u1eeb c\u00e1c phi\u00ean b\u1ea3n tr\u01b0\u1edbc \u0111\u1ec3 k\u1ebft h\u1ee3p nh\u1eefng ti\u1ebfn b\u1ed9 trong c\u00f4ng ngh\u1ec7 s\u1ea3n xu\u1ea5t, \u0111\u1ea3m b\u1ea3o t\u00ednh ph\u00f9 h\u1ee3p trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i. B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 ISO 7045:2011, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng nh\u1ea5t qu\u00e1n, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho th\u01b0\u01a1ng m\u1ea1i qu\u1ed1c t\u1ebf v\u00e0 ti\u00eau chu\u1ea9n h\u00f3a.<\/p>\n

T\u00f3m l\u1ea1i, ti\u00eau chu\u1ea9n n\u00e0y l\u00e0 kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u1ed1i v\u1edbi c\u00e1c chuy\u00ean gia tham gia thi\u1ebft k\u1ebf, th\u1eed nghi\u1ec7m v\u00e0 \u1ee9ng d\u1ee5ng c\u00e1c lo\u1ea1i \u1ed1c v\u00edt c\u01a1 kh\u00ed. N\u00f3 cung c\u1ea5p m\u1ed9t khu\u00f4n kh\u1ed5 to\u00e0n di\u1ec7n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c lo\u1ea1i \u1ed1c v\u00edt c\u00e2n b\u1eb1ng gi\u1eefa ch\u1ee9c n\u0103ng, \u0111\u1ed9 b\u1ec1n v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed. C\u00e1c ph\u1ea7n ti\u1ebfp theo s\u1ebd \u0111i s\u00e2u h\u01a1n v\u00e0o t\u1ed5ng quan, k\u00edch th\u01b0\u1edbc, \u0111i\u1ec1u ki\u1ec7n k\u1ef9 thu\u1eadt v\u00e0 c\u00e1c c\u00e2n nh\u1eafc th\u1ef1c ti\u1ec5n c\u1ee7a ti\u00eau chu\u1ea9n, cung c\u1ea5p nh\u1eefng hi\u1ec3u bi\u1ebft c\u00f3 gi\u00e1 tr\u1ecb cho vi\u1ec7c tri\u1ec3n khai.<\/p>\n

<\/p>\n<\/section>\n

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T\u1ed5ng quan ti\u00eau chu\u1ea9n<\/h2>\n

Ti\u00eau chu\u1ea9n ISO 7045:2011 \u0111\u01b0\u1ee3c T\u1ed5 ch\u1ee9c Ti\u00eau chu\u1ea9n h\u00f3a Qu\u1ed1c t\u1ebf (ISO) ban h\u00e0nh \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c y\u00eau c\u1ea7u \u0111\u1ed1i v\u1edbi v\u00edt \u0111\u1ea7u tr\u00f2n c\u00f3 r\u00e3nh ch\u1eef th\u1eadp lo\u1ea1i H ho\u1eb7c Z, \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i theo c\u1ea5p s\u1ea3n ph\u1ea9m A. Phi\u00ean b\u1ea3n n\u00e0y thay th\u1ebf c\u00e1c phi\u00ean b\u1ea3n tr\u01b0\u1edbc \u0111\u00f3, t\u00edch h\u1ee3p c\u00e1c c\u1eadp nh\u1eadt \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c ti\u00eau chu\u1ea9n s\u1ea3n xu\u1ea5t hi\u1ec7n \u0111\u1ea1i v\u00e0 nh\u1eefng ti\u1ebfn b\u1ed9 v\u1ec1 v\u1eadt li\u1ec7u.<\/p>\n

Ti\u00eau chu\u1ea9n n\u00e0y \u00e1p d\u1ee5ng cho c\u00e1c lo\u1ea1i v\u00edt c\u00f3 \u0111\u01b0\u1eddng k\u00ednh ren danh ngh\u0129a t\u1eeb M1.6 \u0111\u1ebfn M10, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c m\u1ee5c \u0111\u00edch k\u1ef9 thu\u1eadt chung. N\u00f3 quy \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc, dung sai, t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t, \u0111\u1ea3m b\u1ea3o c\u00e1c lo\u1ea1i \u1ed1c v\u00edt n\u00e0y \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ed9 tin c\u1eady cao. Ti\u00eau chu\u1ea9n n\u00e0y \u00e1p d\u1ee5ng cho c\u00e1c lo\u1ea1i v\u00edt m\u00e1y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c m\u1ed1i n\u1ed1i bu l\u00f4ng, n\u01a1i m\u00e0 \u0111\u1ea7u v\u00edt d\u1ea1ng ch\u1ea3o \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng v\u00ec b\u1ec1 m\u1eb7t ch\u1ecbu l\u1ef1c v\u00e0 t\u00ednh th\u1ea9m m\u1ef9 c\u1ee7a n\u00f3.<\/p>\n

N\u1ed9i dung ch\u00ednh bao g\u1ed3m c\u00e1c b\u1ea3ng k\u00edch th\u01b0\u1edbc cho c\u1ee1 ren, \u0111\u01b0\u1eddng k\u00ednh \u0111\u1ea7u, chi\u1ec1u cao v\u00e0 chi ti\u1ebft r\u00e3nh, c\u0169ng nh\u01b0 c\u00e1c t\u00e0i li\u1ec7u tham kh\u1ea3o \u0111\u1ebfn c\u00e1c ti\u00eau chu\u1ea9n h\u1ed7 tr\u1ee3 nh\u01b0 ISO 898-1 v\u1ec1 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a c\u00e1c chi ti\u1ebft l\u1eafp gh\u00e9p b\u1eb1ng th\u00e9p. T\u1ed5ng quan n\u00e0y nh\u1ea5n m\u1ea1nh vai tr\u00f2 c\u1ee7a ti\u00eau chu\u1ea9n trong vi\u1ec7c th\u00fac \u0111\u1ea9y an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3 trong c\u00e1c c\u1ee5m l\u1eafp r\u00e1p c\u01a1 kh\u00ed, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c l\u0129nh v\u1ef1c nh\u01b0 h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, \u00f4 t\u00f4 v\u00e0 \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng.<\/p>\n

T\u1eeb g\u00f3c \u0111\u1ed9 chuy\u00ean m\u00f4n, ti\u00eau chu\u1ea9n n\u00e0y t\u1eadp trung v\u00e0o dung sai c\u1ea5p A gi\u00fap gi\u1ea3m thi\u1ec3u s\u1ef1 sai l\u1ec7ch trong s\u1ea3n xu\u1ea5t, h\u1ed7 tr\u1ee3 c\u00e1c quy tr\u00ecnh l\u1eafp r\u00e1p t\u1ef1 \u0111\u1ed9ng. N\u00f3 c\u0169ng gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 m\u00f4i tr\u01b0\u1eddng th\u00f4ng qua c\u00e1c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n. C\u00e1c k\u1ef9 s\u01b0 c\u1ea7n l\u01b0u \u00fd r\u1eb1ng vi\u1ec7c tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n n\u00e0y t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c ch\u1ee9ng nh\u1eadn theo c\u00e1c h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng nh\u01b0 ISO 9001.<\/p>\n

B\u1ed1i c\u1ea3nh l\u1ecbch s\u1eed cho th\u1ea5y s\u1ef1 ph\u00e1t tri\u1ec3n t\u1eeb c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c gia sang m\u1ed9t khu\u00f4n kh\u1ed5 qu\u1ed1c t\u1ebf th\u1ed1ng nh\u1ea5t, gi\u00fap gi\u1ea3m thi\u1ec3u c\u00e1c r\u00e0o c\u1ea3n th\u01b0\u01a1ng m\u1ea1i. V\u1ec1 ph\u1ea1m vi \u00e1p d\u1ee5ng, ti\u00eau chu\u1ea9n n\u00e0y lo\u1ea1i tr\u1eeb c\u00e1c lo\u1ea1i \u1ed1c v\u00edt chuy\u00ean d\u1ee5ng nh\u01b0 \u1ed1c v\u00edt t\u1ef1 ren, h\u01b0\u1edbng d\u1eabn ng\u01b0\u1eddi d\u00f9ng tham kh\u1ea3o c\u00e1c ti\u00eau chu\u1ea9n li\u00ean quan. Nh\u00ecn chung, ISO 7045:2011 \u0111\u00f3ng vai tr\u00f2 l\u00e0 ti\u00eau chu\u1ea9n tham kh\u1ea3o cho vi\u1ec7c \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng trong s\u1ea3n xu\u1ea5t \u1ed1c v\u00edt.<\/p>\n

\u0110\u1ec3 tri\u1ec3n khai ti\u00eau chu\u1ea9n n\u00e0y m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, c\u00e1c chuy\u00ean gia c\u1ea7n xem x\u00e9t vi\u1ec7c t\u00edch h\u1ee3p v\u1edbi ph\u1ea7n m\u1ec1m thi\u1ebft k\u1ebf \u0111\u1ec3 m\u00f4 h\u00ecnh h\u00f3a ch\u00ednh x\u00e1c. Ti\u00eau chu\u1ea9n n\u00e0y c\u0169ng h\u1ed7 tr\u1ee3 t\u00ednh b\u1ec1n v\u1eefng b\u1eb1ng c\u00e1ch khuy\u1ebfn kh\u00edch s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u t\u00e1i ch\u1ebf. Ph\u1ea7n n\u00e0y cung c\u1ea5p ki\u1ebfn \u200b\u200bth\u1ee9c n\u1ec1n t\u1ea3ng, chu\u1ea9n b\u1ecb cho ng\u01b0\u1eddi \u0111\u1ecdc nh\u1eefng t\u00ecm hi\u1ec3u chi ti\u1ebft h\u01a1n v\u1ec1 k\u00edch th\u01b0\u1edbc v\u00e0 y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt trong c\u00e1c ph\u1ea7n ti\u1ebfp theo.<\/p>\n

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K\u00edch th\u01b0\u1edbc v\u00e0 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/h2>\n

K\u00edch th\u01b0\u1edbc c\u1ee7a v\u00edt \u0111\u1ea7u tr\u00f2n lo\u1ea1i A theo ti\u00eau chu\u1ea9n ISO 7045:2011 v\u1edbi r\u00e3nh ch\u1eef H ho\u1eb7c Z \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh b\u1eb1ng milim\u00e9t, bao g\u1ed3m c\u00e1c c\u1ee1 ren t\u1eeb M1.6 \u0111\u1ebfn M10. C\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt n\u00e0y \u0111\u1ea3m b\u1ea3o s\u1ef1 l\u1eafp r\u00e1p v\u00e0 ch\u1ee9c n\u0103ng ch\u00ednh x\u00e1c, v\u1edbi dung sai tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m lo\u1ea1i A \u0111\u1ec3 \u0111\u1ea1t \u0111\u1ed9 ch\u00ednh x\u00e1c cao.<\/p>\n

C\u00e1c th\u00f4ng s\u1ed1 ch\u00ednh bao g\u1ed3m b\u01b0\u1edbc ren (P), chi\u1ec1u d\u00e0i th\u00e2n kh\u00f4ng ren t\u1ed1i \u0111a (a), chi\u1ec1u d\u00e0i ren t\u1ed1i thi\u1ec3u (b), \u0111\u01b0\u1eddng k\u00ednh th\u00e2n t\u1ed1i \u0111a (da), \u0111\u01b0\u1eddng k\u00ednh \u0111\u1ea7u (d).k<\/sub>), chi\u1ec1u cao \u0111\u1ea7u (k), b\u00e1n k\u00ednh bo tr\u00f2n (r), b\u00e1n k\u00ednh \u0111\u1ea7u x\u1ea5p x\u1ec9 (R), \u0111\u1ed9 m\u1edf r\u1ed9ng b\u01b0\u1edbc (x), s\u1ed1 r\u00e3nh v\u00e0 \u0111\u1ed9 s\u00e2u xuy\u00ean th\u1ea5u cho c\u00e1c lo\u1ea1i H v\u00e0 Z.<\/p>\n

B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y tr\u00ecnh b\u00e0y chi ti\u1ebft c\u00e1c k\u00edch th\u01b0\u1edbc n\u00e0y, r\u1ea5t c\u1ea7n thi\u1ebft cho c\u00e1c k\u1ef9 s\u01b0 thi\u1ebft k\u1ebf \u0111\u1ec3 l\u1ef1a ch\u1ecdn \u1ed1c v\u00edt ph\u00f9 h\u1ee3p. L\u01b0u \u00fd r\u1eb1ng c\u00e1c gi\u00e1 tr\u1ecb cho M3.5 \u0111\u01b0\u1ee3c ghi trong ngo\u1eb7c \u0111\u01a1n l\u00e0 t\u00f9y ch\u1ecdn. T\u1ea5t c\u1ea3 c\u00e1c ph\u00e9p \u0111o \u0111\u1ec1u r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn v\u00e0 d\u1ee5ng c\u1ee5 gh\u00e9p n\u1ed1i.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Tham s\u1ed1<\/th>\nM1.6<\/th>\nM2<\/th>\nM2.5<\/th>\nM3<\/th>\n(M3.5)<\/th>\nM4<\/th>\nM5<\/th>\nM6<\/th>\nM8<\/th>\nM10<\/th>\n<\/tr>\n<\/thead>\n
P<\/td>\nS\u00e2n b\u00f3ng \u0111\u00e1<\/td>\n0.35<\/td>\n0.4<\/td>\n0.45<\/td>\n0.5<\/td>\n0.6<\/td>\n0.7<\/td>\n0.8<\/td>\n1<\/td>\n1.25<\/td>\n1.5<\/td>\n<\/tr>\n
M\u1ed9t<\/td>\nt\u1ed1i \u0111a<\/td>\n0.7<\/td>\n0.8<\/td>\n0.9<\/td>\n1<\/td>\n1.2<\/td>\n1.4<\/td>\n1.6<\/td>\n2<\/td>\n2.5<\/td>\n3<\/td>\n<\/tr>\n
b<\/td>\nph\u00fat<\/td>\n25<\/td>\n25<\/td>\n25<\/td>\n25<\/td>\n38<\/td>\n38<\/td>\n38<\/td>\n38<\/td>\n38<\/td>\n38<\/td>\n<\/tr>\n
da<\/td>\nt\u1ed1i \u0111a<\/td>\n2<\/td>\n2.6<\/td>\n3.1<\/td>\n3.6<\/td>\n4.1<\/td>\n4.7<\/td>\n5.7<\/td>\n6.8<\/td>\n9.2<\/td>\n11.2<\/td>\n<\/tr>\n
dk<\/sub><\/td>\nt\u1ed1i \u0111a = danh ngh\u0129a<\/td>\n3.2<\/td>\n4<\/td>\n5<\/td>\n5.6<\/td>\n7<\/td>\n8<\/td>\n9.5<\/td>\n12<\/td>\n16<\/td>\n20<\/td>\n<\/tr>\n
ph\u00fat<\/td>\n2.9<\/td>\n3.7<\/td>\n4.7<\/td>\n5.3<\/td>\n6.64<\/td>\n7.64<\/td>\n9.14<\/td>\n11.57<\/td>\n15.57<\/td>\n19.48<\/td>\n<\/tr>\n
k<\/td>\nt\u1ed1i \u0111a = danh ngh\u0129a<\/td>\n1.3<\/td>\n1.6<\/td>\n2.1<\/td>\n2.4<\/td>\n2.6<\/td>\n3.1<\/td>\n3.7<\/td>\n4.6<\/td>\n6<\/td>\n7.5<\/td>\n<\/tr>\n
ph\u00fat<\/td>\n1.16<\/td>\n1.46<\/td>\n1.96<\/td>\n2.26<\/td>\n2.46<\/td>\n2.92<\/td>\n3.52<\/td>\n4.3<\/td>\n5.7<\/td>\n7.14<\/td>\n<\/tr>\n
r<\/td>\nph\u00fat<\/td>\n0.1<\/td>\n0.1<\/td>\n0.1<\/td>\n0.1<\/td>\n0.1<\/td>\n0.2<\/td>\n0.2<\/td>\n0.25<\/td>\n0.4<\/td>\n0.4<\/td>\n<\/tr>\n
R<\/td>\n\u2248<\/td>\n2.5<\/td>\n3.2<\/td>\n4<\/td>\n5<\/td>\n6<\/td>\n6.5<\/td>\n8<\/td>\n10<\/td>\n13<\/td>\n16<\/td>\n<\/tr>\n
x<\/td>\nt\u1ed1i \u0111a<\/td>\n0.9<\/td>\n1<\/td>\n1.1<\/td>\n1.25<\/td>\n1.5<\/td>\n1.75<\/td>\n2<\/td>\n2.5<\/td>\n3.2<\/td>\n3.8<\/td>\n<\/tr>\n
Gi\u1edd gi\u1ea3i lao s\u1ed1...<\/td>\n0<\/td>\n0<\/td>\n1<\/td>\n1<\/td>\n2<\/td>\n2<\/td>\n2<\/td>\n3<\/td>\n4<\/td>\n4<\/td>\n<\/tr>\n
M1<\/sub><\/td>\nLo\u1ea1i H<\/td>\ntham kh\u1ea3o<\/td>\n1.7<\/td>\n1.9<\/td>\n2.7<\/td>\n3<\/td>\n3.9<\/td>\n4.4<\/td>\n4.9<\/td>\n6.9<\/td>\n9<\/td>\n10.1<\/td>\n<\/tr>\n
S\u1ef1 th\u00e2m nh\u1eadp<\/td>\nLo\u1ea1i H<\/td>\nt\u1ed1i \u0111a<\/td>\n0.95<\/td>\n1.2<\/td>\n1.55<\/td>\n1.8<\/td>\n1.9<\/td>\n2.4<\/td>\n2.9<\/td>\n3.6<\/td>\n4.6<\/td>\n5.8<\/td>\n<\/tr>\n
S\u1ef1 th\u00e2m nh\u1eadp<\/td>\nph\u00fat<\/td>\n0.7<\/td>\n0.9<\/td>\n1.15<\/td>\n1.4<\/td>\n1.4<\/td>\n1.9<\/td>\n2.4<\/td>\n3.1<\/td>\n4<\/td>\n5.2<\/td>\n<\/tr>\n
M2<\/sub><\/td>\nLo\u1ea1i Z<\/td>\ntham kh\u1ea3o<\/td>\n1.6<\/td>\n2.1<\/td>\n2.6<\/td>\n2.8<\/td>\n3.9<\/td>\n4.3<\/td>\n4.7<\/td>\n6.7<\/td>\n8.8<\/td>\n9.9<\/td>\n<\/tr>\n
S\u1ef1 th\u00e2m nh\u1eadp<\/td>\nLo\u1ea1i Z<\/td>\nt\u1ed1i \u0111a<\/td>\n0.9<\/td>\n1.42<\/td>\n1.5<\/td>\n1.75<\/td>\n1.93<\/td>\n2.34<\/td>\n2.74<\/td>\n3.46<\/td>\n4.5<\/td>\n5.69<\/td>\n<\/tr>\n
S\u1ef1 th\u00e2m nh\u1eadp<\/td>\nph\u00fat<\/td>\n0.65<\/td>\n1.17<\/td>\n1.25<\/td>\n1.5<\/td>\n1.48<\/td>\n1.89<\/td>\n2.29<\/td>\n3.03<\/td>\n4.05<\/td>\n5.24<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

C\u00e1c k\u00edch th\u01b0\u1edbc n\u00e0y \u0111\u01b0\u1ee3c l\u1ea5y t\u1eeb ti\u00eau chu\u1ea9n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u. V\u00ed d\u1ee5, \u0111\u01b0\u1eddng k\u00ednh \u0111\u1ea7u (d)k<\/sub>K\u00edch th\u01b0\u1edbc r\u00e3nh dao \u0111\u1ed9ng t\u1eeb 3,2 mm (danh ngh\u0129a) cho M1.6 \u0111\u1ebfn 20 mm cho M10, v\u1edbi dung sai t\u1ed1i thi\u1ec3u\/t\u1ed1i \u0111a ch\u1eb7t ch\u1ebd. \u0110\u1ed9 s\u00e2u r\u00e3nh \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh \u0111\u1ec3 ng\u0103n ng\u1eeba hi\u1ec7n t\u01b0\u1ee3ng tr\u01b0\u1ee3t tay v\u1eb7n, n\u00e2ng cao hi\u1ec7u qu\u1ea3 l\u1eafp r\u00e1p.<\/p>\n

Trong c\u00e1c \u1ee9ng d\u1ee5ng k\u1ef9 thu\u1eadt, vi\u1ec7c l\u1ef1a ch\u1ecdn k\u00edch th\u01b0\u1edbc ph\u00f9 h\u1ee3p c\u1ea7n xem x\u00e9t y\u00eau c\u1ea7u v\u1ec1 t\u1ea3i tr\u1ecdng v\u00e0 \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u. D\u1eef li\u1ec7u ti\u00eau chu\u1ea9n h\u1ed7 tr\u1ee3 m\u00f4 h\u00ecnh h\u00f3a CAD v\u00e0 t\u1ea1o m\u1eabu th\u1eed, gi\u1ea3m thi\u1ec3u c\u00e1c l\u1ea7n l\u1eb7p l\u1ea1i thi\u1ebft k\u1ebf. C\u00e1c chuy\u00ean gia n\u00ean ki\u1ec3m tra k\u00edch th\u01b0\u1edbc so v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn th\u1ef1c t\u1ebf \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n.<\/p>\n

    \n
  • B\u01b0\u1edbc ren t\u0103ng theo \u0111\u01b0\u1eddng k\u00ednh \u0111\u1ec3 t\u0103ng \u0111\u1ed9 b\u1ec1n.<\/li>\n
  • Chi\u1ec1u d\u00e0i ren t\u1ed1i thi\u1ec3u (b) \u0111\u1ea3m b\u1ea3o s\u1ef1 \u0103n kh\u1edbp \u0111\u1ea7y \u0111\u1ee7.<\/li>\n
  • C\u00e1c lo\u1ea1i r\u00e3nh H v\u00e0 Z kh\u00e1c nhau v\u1ec1 h\u00ecnh d\u1ea1ng h\u00ecnh h\u1ecdc \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c nhu c\u1ea7u m\u00f4-men xo\u1eafn c\u1ee5 th\u1ec3.<\/li>\n<\/ul>\n

    <\/p>\n<\/section>\n

    \n

    \u0110i\u1ec1u ki\u1ec7n k\u1ef9 thu\u1eadt v\u00e0 ti\u00eau chu\u1ea9n tham chi\u1ebfu<\/h2>\n

    Ti\u00eau chu\u1ea9n ISO 7045:2011 quy \u0111\u1ecbnh c\u00e1c \u0111i\u1ec1u ki\u1ec7n k\u1ef9 thu\u1eadt v\u1ec1 v\u1eadt li\u1ec7u, ren, t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc, dung sai, r\u00e3nh ch\u1eef th\u1eadp, x\u1eed l\u00fd b\u1ec1 m\u1eb7t, khuy\u1ebft t\u1eadt v\u00e0 ti\u00eau chu\u1ea9n ch\u1ea5p nh\u1eadn. Nh\u1eefng \u0111i\u1ec1u ki\u1ec7n n\u00e0y \u0111\u1ea3m b\u1ea3o v\u00edt \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau ch\u00ed hi\u1ec7u su\u1ea5t trong nhi\u1ec1u m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau.<\/p>\n

    B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y t\u00f3m t\u1eaft c\u00e1c \u0111i\u1ec1u ki\u1ec7n n\u00e0y, tham chi\u1ebfu c\u00e1c ti\u00eau chu\u1ea9n ISO ch\u00ednh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n.<\/p>\n

    \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Lo\u1ea1i<\/th>\nTh\u00e9p<\/th>\nTh\u00e9p kh\u00f4ng g\u1ec9<\/th>\nKim lo\u1ea1i m\u00e0u<\/th>\n<\/tr>\n<\/thead>\n
    Y\u00eau c\u1ea7u chung<\/td>\nISO 8992<\/td>\n<\/tr>\n
    Ch\u1ee7 \u0111\u1ec1<\/td>\nS\u1ee9c ch\u1ecbu \u0111\u1ef1ng<\/td>\n6g<\/td>\n<\/tr>\n
    Ti\u00eau chu\u1ea9n<\/td>\nISO 261, ISO 965-2<\/td>\n<\/tr>\n
    T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc<\/td>\nL\u1edbp t\u00e0i s\u1ea3n<\/td>\n4.8<\/td>\nA2-50, A2-70<\/td>\n–<\/td>\n<\/tr>\n
    Ti\u00eau chu\u1ea9n<\/td>\nISO 898-1<\/td>\nISO 3506-1<\/td>\nISO 8839<\/td>\n<\/tr>\n
    Dung sai<\/td>\nC\u1ea5p \u0111\u1ed9 s\u1ea3n ph\u1ea9m<\/td>\nM\u1ed8T<\/td>\n<\/tr>\n
    Ti\u00eau chu\u1ea9n<\/td>\nISO 4759-1<\/td>\n<\/tr>\n
    H\u1ed1c ch\u1eef th\u1eadp<\/td>\nISO 4757<\/td>\n<\/tr>\n
    Ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t<\/td>\n–<\/td>\nCh\u01b0a qua x\u1eed l\u00fd; M\u1ea1 \u0111i\u1ec7n theo ti\u00eau chu\u1ea9n ISO 4042; V\u1ea3y k\u1ebdm kh\u00f4ng \u0111i\u1ec7n ph\u00e2n theo ti\u00eau chu\u1ea9n ISO 10683<\/td>\nCh\u01b0a qua x\u1eed l\u00fd; Th\u1ee5 \u0111\u1ed9ng h\u00f3a theo ti\u00eau chu\u1ea9n ISO 16048<\/td>\nCh\u01b0a qua x\u1eed l\u00fd; M\u1ea1 \u0111i\u1ec7n theo ti\u00eau chu\u1ea9n ISO 4042<\/td>\n<\/tr>\n
    –<\/td>\nC\u00e1c y\u00eau c\u1ea7u ho\u1eb7c h\u1ea1ng m\u1ee5c ho\u00e0n thi\u1ec7n kh\u00e1c theo th\u1ecfa thu\u1eadn.<\/td>\n<\/tr>\n
    S\u1ef1 gi\u00e1n \u0111o\u1ea1n b\u1ec1 m\u1eb7t<\/td>\nISO 6157-1<\/td>\n<\/tr>\n
    Kh\u1ea3 n\u0103ng ch\u1ea5p nh\u1eadn<\/td>\nISO 3269<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    C\u00e1c \u0111i\u1ec1u ki\u1ec7n n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u: th\u00e9p cho m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng chung, th\u00e9p kh\u00f4ng g\u1ec9 cho kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, v\u00e0 kim lo\u1ea1i m\u00e0u cho c\u00e1c \u1ee9ng d\u1ee5ng nh\u1eb9. C\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc nh\u01b0 4,8 \u0111\u1ed1i v\u1edbi th\u00e9p \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n k\u00e9o \u0111\u1ea7y \u0111\u1ee7.<\/p>\n

    C\u00e1c ti\u00eau chu\u1ea9n tham chi\u1ebfu cung c\u1ea5p khu\u00f4n kh\u1ed5 cho vi\u1ec7c th\u1eed nghi\u1ec7m v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng. V\u00ed d\u1ee5, ISO 4759-1 \u0111\u1ecbnh ngh\u0129a dung sai, trong khi ISO 4042 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn qu\u00e1 tr\u00ecnh m\u1ea1 \u0111i\u1ec7n \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n.<\/p>\n

      \n
    1. Ki\u1ec3m tra dung sai ren 6g \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u1edbp n\u1ed1i ch\u00ednh x\u00e1c.<\/li>\n
    2. Ch\u1ecdn lo\u1ea1i b\u1ea5t \u0111\u1ed9ng s\u1ea3n d\u1ef1a tr\u00ean y\u00eau c\u1ea7u v\u1ec1 t\u1ea3i tr\u1ecdng.<\/li>\n
    3. \u00c1p d\u1ee5ng c\u00e1c bi\u1ec7n ph\u00e1p x\u1eed l\u00fd b\u1ec1 m\u1eb7t \u0111\u1ec3 b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng.<\/li>\n<\/ol>\n

      <\/p>\n<\/section>\n

      \n

      \u1ee8ng d\u1ee5ng v\u00e0 T\u00e1c \u0111\u1ed9ng \u0111\u1ebfn Ng\u00e0nh c\u00f4ng nghi\u1ec7p<\/h2>\n

      \u1ed0c v\u00edt theo ti\u00eau chu\u1ea9n ISO 7045:2011 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c c\u1ee5m l\u1eafp r\u00e1p c\u01a1 kh\u00ed y\u00eau c\u1ea7u s\u1ef1 c\u1ed1 \u0111\u1ecbnh ch\u1eafc ch\u1eafn v\u00e0 c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn. Trong s\u1ea3n xu\u1ea5t \u00f4 t\u00f4, ch\u00fang \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 c\u1ed1 \u0111\u1ecbnh c\u00e1c b\u1ed9 ph\u1eadn n\u1ed9i th\u1ea5t; trong ng\u00e0nh \u0111i\u1ec7n t\u1eed, ch\u00fang \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 l\u1eafp r\u00e1p c\u00e1c b\u1ea3ng m\u1ea1ch; v\u00e0 trong m\u00e1y m\u00f3c, ch\u00fang \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 c\u1ed1 \u0111\u1ecbnh c\u00e1c t\u1ea5m panel.<\/p>\n

      Ti\u00eau chu\u1ea9n n\u00e0y c\u00f3 t\u00e1c \u0111\u1ed9ng bao g\u1ed3m vi\u1ec7c chu\u1ea9n h\u00f3a s\u1ea3n xu\u1ea5t to\u00e0n c\u1ea7u, c\u1ea3i thi\u1ec7n ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 h\u1ed7 tr\u1ee3 \u0111\u1ed5i m\u1edbi trong v\u1eadt li\u1ec7u. N\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn nghi\u00ean c\u1ee9u b\u1eb1ng c\u00e1ch cung c\u1ea5p c\u00e1c ti\u00eau chu\u1ea9n cho c\u00e1c h\u1ee3p kim v\u00e0 l\u1edbp ph\u1ee7 m\u1edbi, gi\u00fap t\u0103ng tu\u1ed5i th\u1ecd s\u1ea3n ph\u1ea9m.<\/p>\n

      Trong \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng, vi\u1ec7c tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh gi\u00fap \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c v\u00e0 gi\u1ea3m thi\u1ec3u l\u1ed7i. C\u00e1c nghi\u00ean c\u1ee9u \u0111i\u1ec3n h\u00ecnh cho th\u1ea5y th\u1eddi gian l\u1eafp r\u00e1p tr\u00ean d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c gi\u1ea3m thi\u1ec3u nh\u1edd thi\u1ebft k\u1ebf r\u00e3nh ch\u00ednh x\u00e1c. Nh\u00ecn chung, \u0111i\u1ec1u n\u00e0y th\u00fac \u0111\u1ea9y \u0111\u1ed9 tin c\u1eady trong th\u1ef1c ti\u1ec5n k\u1ef9 thu\u1eadt.<\/p>\n

      Theo quan \u0111i\u1ec3m c\u1ee7a chuy\u00ean gia, vi\u1ec7c t\u00edch h\u1ee3p ti\u00eau chu\u1ea9n n\u00e0y v\u00e0o quy tr\u00ecnh mua s\u1eafm gi\u00fap gi\u1ea3m thi\u1ec3u r\u1ee7i ro chu\u1ed7i cung \u1ee9ng. N\u00f3 c\u0169ng g\u00f3p ph\u1ea7n v\u00e0o s\u1ef1 b\u1ec1n v\u1eefng th\u00f4ng qua c\u00e1c lo\u1ea1i \u1ed1c v\u00edt b\u1ec1n, c\u00f3 th\u1ec3 t\u00e1i ch\u1ebf. C\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0 h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 \u0111\u01b0\u1ee3c h\u01b0\u1edfng l\u1ee3i t\u1eeb \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a n\u00f3, gi\u00fap ng\u0103n ng\u1eeba s\u1ef1 c\u1ed1 trong c\u00e1c \u1ee9ng d\u1ee5ng quan tr\u1ecdng.<\/p>\n

      Ti\u00eau chu\u1ea9n n\u00e0y th\u00fac \u0111\u1ea9y c\u00e1c th\u1ef1c ti\u1ec5n t\u1ed1t nh\u1ea5t trong thi\u1ebft k\u1ebf, khuy\u1ebfn kh\u00edch c\u00e1c k\u1ef9 s\u01b0 xem x\u00e9t c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 gi\u1edbi h\u1ea1n m\u00f4-men xo\u1eafn v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1eadt li\u1ec7u. Vi\u1ec7c \u00e1p d\u1ee5ng ti\u00eau chu\u1ea9n n\u00e0y \u0111\u00e3 d\u1eabn \u0111\u1ebfn vi\u1ec7c gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng khi\u1ebfu n\u1ea1i b\u1ea3o h\u00e0nh \u0111\u1ed1i v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m ti\u00eau d\u00f9ng, ch\u1ee9ng minh l\u1ee3i \u00edch kinh t\u1ebf.<\/p>\n

      T\u00f3m l\u1ea1i, ti\u00eau chu\u1ea9n ISO 7045:2011 th\u00fac \u0111\u1ea9y hi\u1ec7u qu\u1ea3 v\u00e0 an to\u00e0n trong m\u1ecdi l\u0129nh v\u1ef1c, v\u00e0 v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c t\u00ednh ph\u00f9 h\u1ee3p khi c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n.<\/p>\n

      <\/p>\n<\/section>\n

      \n

      C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n
      \n
      S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa r\u00e3nh ch\u1eef th\u1eadp lo\u1ea1i H v\u00e0 lo\u1ea1i Z trong ti\u00eau chu\u1ea9n ISO 7045:2011 l\u00e0 g\u00ec?<\/dt>\n
      C\u00e1c r\u00e3nh lo\u1ea1i H \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 truy\u1ec1n m\u00f4-men xo\u1eafn cao h\u01a1n v\u1edbi c\u1ea5u h\u00ecnh Phillips ti\u00eau chu\u1ea9n, trong khi lo\u1ea1i Z cung c\u1ea5p kh\u1ea3 n\u0103ng ch\u1ed1ng tr\u01b0\u1ee3t t\u1ed1t h\u01a1n nh\u1edd h\u00ecnh d\u1ea1ng \u0111\u01b0\u1ee3c s\u1eeda \u0111\u1ed5i, ph\u00f9 h\u1ee3p cho vi\u1ec7c l\u1eafp r\u00e1p t\u1ef1 \u0111\u1ed9ng.<\/dd>\n
      T\u00f4i n\u00ean ch\u1ecdn v\u1eadt li\u1ec7u n\u00e0o cho lo\u1ea1i \u1ed1c v\u00edt n\u00e0y?<\/dt>\n
      H\u00e3y ch\u1ecdn th\u00e9p \u0111\u1ec3 c\u00f3 \u0111\u1ed9 b\u1ec1n hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed (c\u1ea5p \u0111\u1ed9 b\u1ec1n 4.8), th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u1ec3 ch\u1ed1ng \u0103n m\u00f2n (A2-50 ho\u1eb7c A2-70), ho\u1eb7c kim lo\u1ea1i m\u00e0u cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 nh\u01b0 d\u1eabn \u0111i\u1ec7n, theo ti\u00eau chu\u1ea9n ISO.<\/dd>\n
      C\u00e1c lo\u1ea1i v\u00edt \u0111\u1ea7u ph\u1eb3ng n\u00e0y c\u00f3 dung sai nh\u01b0 th\u1ebf n\u00e0o?<\/dt>\n
      S\u1ea3n ph\u1ea9m \u0111\u1ea1t ti\u00eau chu\u1ea9n A v\u1edbi dung sai theo ISO 4759-1, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c cao, c\u00f9ng v\u1edbi dung sai ren 6g theo ISO 965-2, gi\u1ea3m thi\u1ec3u c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 \u0111\u1ed9 kh\u00edt trong qu\u00e1 tr\u00ecnh l\u1eafp r\u00e1p.<\/dd>\n
      Ti\u00eau chu\u1ea9n \u0111\u00f3 c\u00f3 quy \u0111\u1ecbnh c\u00e1c ph\u01b0\u01a1ng \u00e1n x\u1eed l\u00fd b\u1ec1 m\u1eb7t n\u00e0o kh\u00f4ng?<\/dt>\n
      V\u00e2ng, c\u00e1c t\u00f9y ch\u1ecdn bao g\u1ed3m x\u1eed l\u00fd kh\u00f4ng qua x\u1eed l\u00fd, m\u1ea1 \u0111i\u1ec7n (ISO 4042), m\u1ea1 k\u1ebdm d\u1ea1ng v\u1ea3y kh\u00f4ng \u0111i\u1ec7n ph\u00e2n (ISO 10683) cho th\u00e9p v\u00e0 th\u1ee5 \u0111\u1ed9ng h\u00f3a (ISO 16048) cho th\u00e9p kh\u00f4ng g\u1ec9; c\u00e1c t\u00f9y ch\u1ecdn kh\u00e1c theo th\u1ecfa thu\u1eadn v\u1edbi nh\u00e0 cung c\u1ea5p.<\/dd>\n
      Ti\u00eau chu\u1ea9n ISO 7045:2011 so s\u00e1nh nh\u01b0 th\u1ebf n\u00e0o v\u1edbi c\u00e1c ti\u00eau chu\u1ea9n t\u01b0\u01a1ng t\u1ef1 nh\u01b0 DIN 7985?<\/dt>\n
      Ti\u00eau chu\u1ea9n ISO 7045:2011 t\u01b0\u01a1ng \u0111\u1ed3ng ch\u1eb7t ch\u1ebd v\u1edbi ti\u00eau chu\u1ea9n DIN 7985, c\u1ea3 hai \u0111\u1ec1u quy \u0111\u1ecbnh v\u1ec1 v\u00edt \u0111\u1ea7u tr\u00f2n Phillips, nh\u01b0ng ISO \u0111\u1ea3m b\u1ea3o t\u00ednh th\u1ed1ng nh\u1ea5t qu\u1ed1c t\u1ebf, trong khi DIN c\u00f3 th\u1ec3 bao g\u1ed3m c\u00e1c bi\u1ebfn th\u1ec3 qu\u1ed1c gia; lu\u00f4n ki\u1ec3m tra t\u00ednh t\u01b0\u01a1ng \u0111\u01b0\u01a1ng.<\/dd>\n
      Nh\u1eefng l\u1ed7i th\u01b0\u1eddng g\u1eb7p khi \u00e1p d\u1ee5ng ti\u00eau chu\u1ea9n n\u00e0y l\u00e0 g\u00ec?<\/dt>\n
      C\u00e1c l\u1ed7i bao g\u1ed3m vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i r\u00e3nh kh\u00f4ng ph\u00f9 h\u1ee3p d\u1eabn \u0111\u1ebfn bong tr\u00f3c, b\u1ecf qua c\u00e1c c\u1ea5p dung sai g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 \u0111\u1ed9 kh\u00edt, ho\u1eb7c x\u1eed l\u00fd b\u1ec1 m\u1eb7t kh\u00f4ng \u0111\u00fang c\u00e1ch d\u1eabn \u0111\u1ebfn \u0103n m\u00f2n; c\u1ea7n tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n tham chi\u1ebfu \u0111\u1ec3 tr\u00e1nh c\u00e1c l\u1ed7i n\u00e0y.<\/dd>\n<\/dl>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

      Introduction The ISO 7045:2011 standard specifies the characteristics of pan head screws with cross recess Type H or Type Z, designated as product grade A. This international standard is crucial in mechanical engineering and manufacturing industries, ensuring uniformity in fastener design, dimensions, and performance. It applies to screws made from various materials, including steel, stainless […]<\/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-5632","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\/5632","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=5632"}],"version-history":[{"count":2,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5632\/revisions"}],"predecessor-version":[{"id":5634,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5632\/revisions\/5634"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/media?parent=5632"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/categories?post=5632"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/tags?post=5632"}],"curies":[{"name":"trang web","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}