{"id":5688,"date":"2025-12-24T00:46:43","date_gmt":"2025-12-24T00:46:43","guid":{"rendered":"https:\/\/korea-transmission.com\/?p=5688"},"modified":"2025-12-24T00:50:26","modified_gmt":"2025-12-24T00:50:26","slug":"gb-t-3098-13-bolt-screw-torque-test-failure-torque","status":"publish","type":"post","link":"https:\/\/korea-transmission.com\/vi\/blog\/gb-t-3098-13-bolt-screw-torque-test-failure-torque\/","title":{"rendered":"GB\/T 3098.13: Th\u1eed nghi\u1ec7m m\u00f4-men xo\u1eafn bu l\u00f4ng v\u00e0 v\u00edt & M\u00f4-men xo\u1eafn g\u00e2y h\u1ecfng"},"content":{"rendered":"

Gi\u1edbi thi\u1ec7u Ti\u00eau chu\u1ea9n GB\/T 3098.13<\/h1>\n
\n

Ti\u00eau chu\u1ea9n n\u00e0y quy \u0111\u1ecbnh th\u1eed nghi\u1ec7m m\u00f4-men xo\u1eafn v\u00e0 m\u00f4-men xo\u1eafn t\u1ed1i thi\u1ec3u g\u00e2y h\u1ecfng \u0111\u1ed1i v\u1edbi bu l\u00f4ng v\u00e0 v\u00edt c\u00f3 \u0111\u01b0\u1eddng k\u00ednh danh ngh\u0129a t\u1eeb 1 mm \u0111\u1ebfn 10 mm. Ti\u00eau chu\u1ea9n n\u00e0y \u0111\u1ea3m b\u1ea3o c\u00e1c chi ti\u1ebft l\u1eafp gh\u00e9p \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 hi\u1ec7u su\u1ea5t c\u01a1 h\u1ecdc d\u01b0\u1edbi t\u1ea3i tr\u1ecdng xo\u1eafn, r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng trong ng\u00e0nh m\u00e1y m\u00f3c, \u00f4 t\u00f4 v\u00e0 x\u00e2y d\u1ef1ng. Ti\u00eau chu\u1ea9n n\u00e0y tham chi\u1ebfu ISO 898-7:1992 v\u00e0 \u00e1p d\u1ee5ng cho c\u00e1c c\u1ea5p \u0111\u1ed9 b\u1ec1n 8.8, 9.8, 10.9 v\u00e0 12.9.<\/p>\n

Hi\u1ec3u r\u00f5 ti\u00eau chu\u1ea9n n\u00e0y gi\u00fap c\u00e1c k\u1ef9 s\u01b0 l\u1ef1a ch\u1ecdn c\u00e1c lo\u1ea1i \u1ed1c v\u00edt ph\u00f9 h\u1ee3p, ng\u0103n ng\u1eeba c\u00e1c s\u1ef1 c\u1ed1 do \u0111\u1ed9 b\u1ec1n xo\u1eafn kh\u00f4ng \u0111\u1ee7. Ti\u00eau chu\u1ea9n n\u00e0y n\u00eau r\u00f5 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m ch\u00ednh x\u00e1c \u0111\u1ec3 x\u00e1c minh r\u1eb1ng bu l\u00f4ng v\u00e0 \u1ed1c v\u00edt c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c m\u00f4-men xo\u1eafn quy \u0111\u1ecbnh m\u00e0 kh\u00f4ng b\u1ecb g\u00e3y s\u1edbm.<\/p>\n<\/div>\n

Quy tr\u00ecnh ki\u1ec3m tra m\u00f4-men xo\u1eafn<\/h2>\n
\n

Nguy\u00ean t\u1eafc<\/h3>\n

Th\u1eed nghi\u1ec7m momen xo\u1eafn bao g\u1ed3m vi\u1ec7c k\u1eb9p bu l\u00f4ng ho\u1eb7c v\u00edt v\u00e0o thi\u1ebft b\u1ecb th\u1eed nghi\u1ec7m v\u00e0 t\u00e1c d\u1ee5ng momen xo\u1eafn cho \u0111\u1ebfn khi b\u1ecb g\u00e3y, sau \u0111\u00f3 \u0111o momen xo\u1eafn khi g\u00e3y. \u0110i\u1ec1u n\u00e0y \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng ch\u1ecbu momen xo\u1eafn c\u1ee7a chi ti\u1ebft l\u1eafp gh\u00e9p, \u0111\u1ea3m b\u1ea3o n\u00f3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u t\u1ed1i thi\u1ec3u m\u00e0 kh\u00f4ng b\u1ecb g\u00e3y tr\u01b0\u1edbc gi\u00e1 tr\u1ecb quy \u0111\u1ecbnh.<\/p>\n

    \n
  • T\u1eadp trung v\u00e0o t\u1ea3i tr\u1ecdng xo\u1eafn thu\u1ea7n t\u00fay \u0111\u1ec3 ph\u00e2n l\u1eadp c\u01b0\u1eddng \u0111\u1ed9 c\u1eaft.<\/li>\n
  • C\u1ea7n thi\u1ebft \u0111\u1ec3 x\u00e1c nh\u1eadn t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a v\u1eadt li\u1ec7u v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n xu\u1ea5t.<\/li>\n<\/ul>\n<\/div>\n
    \n

    Thi\u1ebft b\u1ecb<\/h3>\n

    H\u1ec7 th\u1ed1ng th\u1eed nghi\u1ec7m bao g\u1ed3m thi\u1ebft b\u1ecb ki\u1ec3m tra momen xo\u1eafn nh\u01b0 minh h\u1ecda trong c\u00e1c s\u01a1 \u0111\u1ed3 \u0111i\u1ec3n h\u00ecnh (v\u00ed d\u1ee5: H\u00ecnh 1 trong ti\u00eau chu\u1ea9n). C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh \u0111\u1ea3m b\u1ea3o ph\u00e9p \u0111o ch\u00ednh x\u00e1c:<\/p>\n

      \n
    1. C\u1edd l\u00ea l\u1ef1c ho\u1eb7c \u0111\u1ed3ng h\u1ed3 \u0111o l\u1ef1c c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 n\u0103m l\u1ea7n m\u00f4-men xo\u1eafn g\u00e2y h\u1ecfng t\u1ed1i thi\u1ec3u c\u1ee7a m\u1eabu th\u1eed.<\/li>\n
    2. Sai s\u1ed1 t\u1ed1i \u0111a c\u1ee7a thi\u1ebft b\u1ecb \u0111o momen xo\u1eafn ph\u1ea3i n\u1eb1m trong kho\u1ea3ng \u00b11% so v\u1edbi momen xo\u1eafn g\u00e2y h\u1ecfng t\u1ed1i thi\u1ec3u.<\/li>\n
    3. C\u00e1c d\u1ee5ng c\u1ee5 k\u1eb9p gi\u1eef gi\u00fap c\u1ed1 \u0111\u1ecbnh chi ti\u1ebft m\u00e0 kh\u00f4ng g\u00e2y ra t\u1ea3i tr\u1ecdng d\u1ecdc tr\u1ee5c ho\u1eb7c ma s\u00e1t c\u00f3 th\u1ec3 l\u00e0m sai l\u1ec7ch k\u1ebft qu\u1ea3.<\/li>\n<\/ol>\n

      Vi\u1ec7c hi\u1ec7u chu\u1ea9n thi\u1ebft b\u1ecb l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 tin c\u1eady trong m\u00f4i tr\u01b0\u1eddng th\u1eed nghi\u1ec7m c\u00f4ng nghi\u1ec7p.<\/p>\n<\/div>\n

      \n

      \u0110i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m<\/h3>\n

      C\u00e1c th\u1eed nghi\u1ec7m ch\u1ec9 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng l\u1ef1c xo\u1eafn, v\u1edbi c\u00e1c gi\u00e1 tr\u1ecb theo B\u1ea3ng 2. M\u1eabu th\u1eed kh\u00f4ng \u0111\u01b0\u1ee3c g\u00e3y tr\u01b0\u1edbc khi \u0111\u1ea1t \u0111\u1ebfn m\u00f4-men xo\u1eafn g\u00e2y h\u1ecfng t\u1ed1i thi\u1ec3u. Tr\u00e1nh ma s\u00e1t gi\u1eefa \u0111\u1ea7u v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn c\u00f3 ren \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c.<\/p>\n

        \n
      • \u0110i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng tr\u1eeb khi c\u00f3 quy \u0111\u1ecbnh kh\u00e1c.<\/li>\n
      • Th\u00edch h\u1ee3p cho c\u00e1c lo\u1ea1i \u1ed1c v\u00edt c\u00f3 dung sai ren 6g, 6f v\u00e0 6e.<\/li>\n
      • N\u00ean l\u1ea5y nhi\u1ec1u m\u1eabu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady th\u1ed1ng k\u00ea v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng l\u00f4 h\u00e0ng.<\/li>\n<\/ul>\n<\/div>\n
        \n

        Th\u1ee7 t\u1ee5c<\/h3>\n

        L\u1eafp bu l\u00f4ng ho\u1eb7c v\u00edt v\u00e0o chi ti\u1ebft c\u1ed1 \u0111\u1ecbnh sao cho \u00edt nh\u1ea5t hai ren \u0111\u00e3 \u0103n kh\u1edbp, \u0111\u1ec3 l\u1ea1i \u00edt nh\u1ea5t m\u1ed9t \u0111\u01b0\u1eddng k\u00ednh ren gi\u1eefa chi ti\u1ebft c\u1ed1 \u0111\u1ecbnh v\u00e0 \u0111\u1ea7u v\u00edt. Li\u00ean t\u1ee5c si\u1ebft ch\u1eb7t cho \u0111\u1ebfn khi bu l\u00f4ng ho\u1eb7c v\u00edt b\u1ecb h\u1ecfng.<\/p>\n

          \n
        1. C\u1ed1 \u0111\u1ecbnh m\u1eabu v\u1eadt \u0111\u00fang c\u00e1ch \u0111\u1ec3 tr\u00e1nh b\u1ecb tr\u01b0\u1ee3t.<\/li>\n
        2. Ghi l\u1ea1i m\u00f4-men xo\u1eafn t\u1ea1i th\u1eddi \u0111i\u1ec3m x\u1ea3y ra g\u00e3y v\u1ee1.<\/li>\n
        3. Ki\u1ec3m tra b\u1ec1 m\u1eb7t v\u1ebft n\u1ee9t \u0111\u1ec3 t\u00ecm c\u00e1c khuy\u1ebft t\u1eadt nh\u01b0 t\u1ea1p ch\u1ea5t ho\u1eb7c x\u1eed l\u00fd nhi\u1ec7t kh\u00f4ng \u0111\u00fang c\u00e1ch.<\/li>\n<\/ol>\n

          Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y cung c\u1ea5p k\u1ebft qu\u1ea3 c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i, gi\u00fap \u0111\u1ecbnh h\u01b0\u1edbng ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng trong s\u1ea3n xu\u1ea5t.<\/p>\n<\/div>\n

          M\u00f4-men xo\u1eafn g\u00e2y h\u1ecfng t\u1ed1i thi\u1ec3u<\/h2>\n
          \n

          M\u00f4men xo\u1eafn g\u00e2y h\u1ecfng t\u1ed1i thi\u1ec3u (M)B ph\u00fat<\/sub>) \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng c\u00f4ng th\u1ee9c:<\/p>\n

          MB ph\u00fat<\/sub> = \u03c4B ph\u00fat<\/sub> \u00d7 WP ph\u00fat<\/sub><\/p>\n

          \u1ede \u0111\u00e2u:<\/p>\n

            \n
          • T\u00e2yP ph\u00fat<\/sub> = \u03c0\/16 \u00d7 d1 ph\u00fat<\/sub>3<\/sup> (m\u00f4 \u0111un m\u1eb7t c\u1eaft xo\u1eafn)<\/li>\n
          • \u03c4B ph\u00fat<\/sub> = X \u00d7 \u03c3b ph\u00fat<\/sub> (c\u01b0\u1eddng \u0111\u1ed9 xo\u1eafn t\u1ed1i thi\u1ec3u)<\/li>\n
          • d1 ph\u00fat<\/sub>\u0110\u01b0\u1eddng k\u00ednh nh\u1ecf nh\u1ea5t c\u1ee7a ren ngo\u00e0i<\/li>\n
          • \u03c3b ph\u00fat<\/sub>\u0110\u1ed9 b\u1ec1n k\u00e9o t\u1ed1i thi\u1ec3u<\/li>\n
          • X: T\u1ef7 l\u1ec7 c\u01b0\u1eddng \u0111\u1ed9 (t\u1eeb B\u1ea3ng 1)<\/li>\n<\/ul>\n

            Ph\u00e9p t\u00ednh n\u00e0y \u0111\u1ea3m b\u1ea3o c\u00e1c chi ti\u1ebft l\u1eafp gh\u00e9p c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c t\u1ea3i tr\u1ecdng thi\u1ebft k\u1ebf m\u1ed9t c\u00e1ch an to\u00e0n, c\u00f3 t\u00ednh \u0111\u1ebfn c\u00e1c \u0111\u1eb7c t\u00ednh v\u1eadt li\u1ec7u v\u00e0 h\u00ecnh d\u1ea1ng h\u00ecnh h\u1ecdc.<\/p>\n<\/div>\n

            \n

            T\u1ef7 l\u1ec7 s\u1ee9c m\u1ea1nh X<\/h3>\n
            \n\n\n\n\n\n
            L\u1edbp t\u00e0i s\u1ea3n<\/th>\n8.8<\/th>\n9.8<\/th>\n10.9<\/th>\n12.9<\/th>\n<\/tr>\n<\/thead>\n
            T\u1ef7 l\u1ec7 X<\/td>\n0.84<\/td>\n0.815<\/td>\n0.79<\/td>\n0.75<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

            C\u00e1c t\u1ef7 l\u1ec7 n\u00e0y \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 b\u1ec1n xo\u1eafn d\u1ef1a tr\u00ean c\u00e1c \u0111\u1eb7c t\u00ednh k\u00e9o, \u0111\u1ea3m b\u1ea3o c\u00e1c gi\u00e1 tr\u1ecb thi\u1ebft k\u1ebf an to\u00e0n.<\/p>\n<\/div>\n

            \n

            Gi\u00e1 tr\u1ecb m\u00f4-men xo\u1eafn t\u1ed1i thi\u1ec3u g\u00e2y h\u1ecfng<\/h3>\n
            \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
            K\u00fd hi\u1ec7u ren<\/th>\nB\u01b0\u1edbc ren (mm)<\/th>\nM\u00f4-men xo\u1eafn ph\u00e1 h\u1ecfng t\u1ed1i thi\u1ec3u MB ph\u00fat<\/sub> (N\u00b7m)<\/th>\n<\/tr>\n
            L\u1edbp t\u00e0i s\u1ea3n<\/th>\n<\/tr>\n
            8.8<\/th>\n9.8<\/th>\n10.9<\/th>\n12.9<\/th>\n<\/tr>\n<\/thead>\n
            M1<\/td>\n0.25<\/td>\n0.033<\/td>\n0.036<\/td>\n0.04<\/td>\n0.045<\/td>\n<\/tr>\n
            M1.2<\/td>\n0.25<\/td>\n0.075<\/td>\n0.082<\/td>\n0.092<\/td>\n0.1<\/td>\n<\/tr>\n
            M1.4<\/td>\n0.3<\/td>\n0.12<\/td>\n0.13<\/td>\n0.14<\/td>\n0.16<\/td>\n<\/tr>\n
            M1.6<\/td>\n0.35<\/td>\n0.16<\/td>\n0.18<\/td>\n0.2<\/td>\n0.22<\/td>\n<\/tr>\n
            M2<\/td>\n0.4<\/td>\n0.37<\/td>\n0.4<\/td>\n0.45<\/td>\n0.5<\/td>\n<\/tr>\n
            M2.5<\/td>\n0.45<\/td>\n0.82<\/td>\n0.9<\/td>\n1<\/td>\n1.1<\/td>\n<\/tr>\n
            M3<\/td>\n0.5<\/td>\n1.5<\/td>\n1.7<\/td>\n1.9<\/td>\n2.1<\/td>\n<\/tr>\n
            M3.5<\/td>\n0.6<\/td>\n2.4<\/td>\n2.7<\/td>\n3<\/td>\n3.3<\/td>\n<\/tr>\n
            M4<\/td>\n0.7<\/td>\n3.6<\/td>\n3.9<\/td>\n4.4<\/td>\n4.9<\/td>\n<\/tr>\n
            M5<\/td>\n0.8<\/td>\n7.6<\/td>\n8.3<\/td>\n9.3<\/td>\n10<\/td>\n<\/tr>\n
            M6<\/td>\n1<\/td>\n13<\/td>\n14<\/td>\n16<\/td>\n17<\/td>\n<\/tr>\n
            M7<\/td>\n1<\/td>\n23<\/td>\n25<\/td>\n28<\/td>\n31<\/td>\n<\/tr>\n
            M8<\/td>\n1.25<\/td>\n33<\/td>\n36<\/td>\n40<\/td>\n44<\/td>\n<\/tr>\n
            M8\u00d71<\/td>\n1<\/td>\n38<\/td>\n42<\/td>\n46<\/td>\n52<\/td>\n<\/tr>\n
            M10<\/td>\n1.5<\/td>\n66<\/td>\n72<\/td>\n81<\/td>\n90<\/td>\n<\/tr>\n
            M10\u00d71<\/td>\n1<\/td>\n84<\/td>\n92<\/td>\n102<\/td>\n114<\/td>\n<\/tr>\n
            M10\u00d71.25<\/td>\n1.25<\/td>\n75<\/td>\n82<\/td>\n91<\/td>\n102<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

            L\u01b0u \u00fd: C\u00e1c gi\u00e1 tr\u1ecb n\u00e0y \u00e1p d\u1ee5ng cho ren c\u00f3 dung sai 6g, 6f v\u00e0 6e. Ch\u00fang \u0111\u1ea3m b\u1ea3o m\u00f4-men xo\u1eafn l\u1eafp \u0111\u1eb7t an to\u00e0n trong c\u00e1c c\u1ee5m l\u1eafp r\u00e1p.<\/p>\n<\/div>\n

            C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n
            \n

            M\u1ee5c \u0111\u00edch c\u1ee7a th\u1eed nghi\u1ec7m momen xo\u1eafn trong ti\u00eau chu\u1ea9n GB\/T 3098.13 l\u00e0 g\u00ec?<\/h3>\n

            B\u00e0i ki\u1ec3m tra n\u00e0y x\u00e1c minh \u0111\u1ed9 b\u1ec1n xo\u1eafn c\u1ee7a bu l\u00f4ng v\u00e0 \u1ed1c v\u00edt \u0111\u01b0\u1eddng k\u00ednh nh\u1ecf, \u0111\u1ea3m b\u1ea3o ch\u00fang kh\u00f4ng b\u1ecb h\u1ecfng d\u01b0\u1edbi t\u1ea3i tr\u1ecdng quy \u0111\u1ecbnh. \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi vi\u1ec7c \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng trong c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ecbu t\u1ea3i tr\u1ecdng cao nh\u01b0 \u0111i\u1ec7n t\u1eed v\u00e0 m\u00e1y m\u00f3c ch\u00ednh x\u00e1c.<\/p>\n<\/div>\n

            \n

            T\u00f4i ph\u1ea3i ch\u1ecdn lo\u1ea1i thu\u1ed9c t\u00ednh ph\u00f9 h\u1ee3p cho c\u00e1c lo\u1ea1i \u1ed1c v\u00edt c\u1ee7a m\u00ecnh nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n

            H\u00e3y l\u1ef1a ch\u1ecdn d\u1ef1a tr\u00ean \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 b\u1ec1n xo\u1eafn y\u00eau c\u1ea7u. V\u00ed d\u1ee5, lo\u1ea1i 12.9 c\u00f3 gi\u00e1 tr\u1ecb cao h\u01a1n nh\u01b0ng \u0111\u00f2i h\u1ecfi ph\u1ea3i x\u1eed l\u00fd c\u1ea9n th\u1eadn \u0111\u1ec3 tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng gi\u00f2n hydro. Tham kh\u1ea3o t\u1ea3i tr\u1ecdng \u1ee9ng d\u1ee5ng v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng.<\/p>\n<\/div>\n

            \n

            N\u1ebfu m\u00f4-men xo\u1eafn \u0111o \u0111\u01b0\u1ee3c th\u1ea5p h\u01a1n m\u00f4-men xo\u1eafn t\u1ed1i thi\u1ec3u g\u00e2y h\u1ecfng th\u00ec sao?<\/h3>\n

            \u0110i\u1ec1u n\u00e0y cho th\u1ea5y c\u00f3 th\u1ec3 c\u00f3 l\u1ed7i v\u1eadt li\u1ec7u ho\u1eb7c v\u1ea5n \u0111\u1ec1 trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t. H\u00e3y lo\u1ea1i b\u1ecf l\u00f4 h\u00e0ng v\u00e0 \u0111i\u1ec1u tra nguy\u00ean nh\u00e2n, ch\u1eb3ng h\u1ea1n nh\u01b0 x\u1eed l\u00fd nhi\u1ec7t kh\u00f4ng \u0111\u00fang c\u00e1ch ho\u1eb7c sai l\u1ec7ch v\u1ec1 h\u00ecnh d\u1ea1ng ren.<\/p>\n<\/div>\n

            \n

            Ti\u00eau chu\u1ea9n n\u00e0y c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng cho c\u00e1c lo\u1ea1i \u1ed1c v\u00edt c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn h\u01a1n 10 mm kh\u00f4ng?<\/h3>\n

            Kh\u00f4ng, ti\u00eau chu\u1ea9n GB\/T 3098.13 ch\u1ec9 gi\u1edbi h\u1ea1n \u1edf \u0111\u01b0\u1eddng k\u00ednh t\u1eeb 1-10 mm. \u0110\u1ed1i v\u1edbi k\u00edch th\u01b0\u1edbc l\u1edbn h\u01a1n, vui l\u00f2ng tham kh\u1ea3o c\u00e1c ph\u1ea7n kh\u00e1c c\u1ee7a ti\u00eau chu\u1ea9n GB\/T 3098 ho\u1eb7c c\u00e1c ti\u00eau chu\u1ea9n ISO t\u01b0\u01a1ng \u0111\u01b0\u01a1ng nh\u01b0 ISO 898-1.<\/p>\n<\/div>\n

            \n

            Ma s\u00e1t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m m\u00f4-men xo\u1eafn nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n

            Ma s\u00e1t gi\u1eefa \u0111\u1ea7u k\u1eb9p v\u00e0 ren c\u00f3 th\u1ec3 l\u00e0m t\u0103ng sai s\u1ed1 m\u00f4-men xo\u1eafn \u0111o \u0111\u01b0\u1ee3c, d\u1eabn \u0111\u1ebfn \u0111\u00e1nh gi\u00e1 kh\u00f4ng ch\u00ednh x\u00e1c. H\u00e3y \u0111\u1ea3m b\u1ea3o c\u00e1c thi\u1ebft b\u1ecb k\u1eb9p gi\u1ea3m thi\u1ec3u t\u1ed1i \u0111a s\u1ef1 c\u1ea3n tr\u1edf n\u00e0y \u0111\u1ec3 c\u00f3 d\u1eef li\u1ec7u \u0111\u00e1ng tin c\u1eady.<\/p>\n<\/div>\n

            \n

            T\u1ef7 l\u1ec7 s\u1ee9c b\u1ec1n X \u0111\u00f3ng vai tr\u00f2 g\u00ec trong c\u00e1c ph\u00e9p t\u00ednh?<\/h3>\n

            X li\u00ean h\u1ec7 c\u01b0\u1eddng \u0111\u1ed9 c\u1eaft xo\u1eafn v\u1edbi c\u01b0\u1eddng \u0111\u1ed9 k\u00e9o, cung c\u1ea5p h\u1ec7 s\u1ed1 an to\u00e0n. Gi\u00e1 tr\u1ecb X th\u1ea5p h\u01a1n \u0111\u1ed1i v\u1edbi c\u00e1c c\u1ea5p cao h\u01a1n ph\u1ea3n \u00e1nh \u0111\u1ed9 gi\u00f2n t\u0103ng l\u00ean, h\u01b0\u1edbng d\u1eabn thi\u1ebft k\u1ebf th\u1eadn tr\u1ecdng.<\/p>\n<\/div>\n

             <\/p>","protected":false},"excerpt":{"rendered":"

            Gi\u1edbi thi\u1ec7u Ti\u00eau chu\u1ea9n GB\/T 3098.13 Ti\u00eau chu\u1ea9n n\u00e0y quy \u0111\u1ecbnh th\u1eed nghi\u1ec7m m\u00f4-men xo\u1eafn v\u00e0 m\u00f4-men xo\u1eafn t\u1ed1i thi\u1ec3u g\u00e2y h\u1ecfng \u0111\u1ed1i v\u1edbi bu l\u00f4ng v\u00e0 v\u00edt c\u00f3 \u0111\u01b0\u1eddng k\u00ednh danh ngh\u0129a t\u1eeb 1 mm \u0111\u1ebfn 10 mm. Ti\u00eau chu\u1ea9n n\u00e0y \u0111\u1ea3m b\u1ea3o c\u00e1c chi ti\u1ebft l\u1eafp gh\u00e9p \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 hi\u1ec7u su\u1ea5t c\u01a1 h\u1ecdc d\u01b0\u1edbi t\u1ea3i tr\u1ecdng xo\u1eafn, r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng trong ng\u00e0nh m\u00e1y m\u00f3c, \u00f4 t\u00f4 v\u00e0 x\u00e2y d\u1ef1ng. Ti\u00eau chu\u1ea9n n\u00e0y tham chi\u1ebfu ISO 898-7:1992 v\u00e0 \u00e1p d\u1ee5ng [\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-5688","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\/5688","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=5688"}],"version-history":[{"count":3,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5688\/revisions"}],"predecessor-version":[{"id":5691,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5688\/revisions\/5691"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/media?parent=5688"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/categories?post=5688"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/tags?post=5688"}],"curies":[{"name":"trang web","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}