{"id":3697,"date":"2018-05-08T11:06:56","date_gmt":"2018-05-08T03:06:56","guid":{"rendered":"http:\/\/www.bundytubes.com\/?p=3697"},"modified":"2026-10-05T13:03:19","modified_gmt":"2026-10-05T05:03:19","slug":"gost-11249-80-steel-rolled-up-soldered-double-layer-brazed-tubes","status":"publish","type":"post","link":"https:\/\/www.bundytubes.com\/vi\/gost-11249-80-steel-rolled-up-soldered-double-layer-brazed-tubes\/","title":{"rendered":"GOST 11249-80 \u1ed0ng th\u00e9p cu\u1ed9n h\u00e0n \u0111\u1ed3ng hai l\u1edbp"},"content":{"rendered":"\n

Ti\u00eau chu\u1ea9n n\u00e0y \u00e1p d\u1ee5ng cho c\u00e1c \u1ed1ng th\u00e9p hai l\u1edbp d\u1ea1ng xo\u1eafn \u0111\u01b0\u1ee3c h\u00e0n d\u00f9ng trong h\u1ec7 th\u1ed1ng th\u1ee7y l\u1ef1c c\u1ee7a m\u00e1y g\u1eb7t li\u00ean h\u1ee3p, m\u00e1y k\u00e9o, \u00f4 t\u00f4, t\u1ee7 l\u1ea1nh gia d\u1ee5ng, v.v.<\/p>\n\n\n\n

1. Danh m\u1ee5c s\u1ea3n ph\u1ea9m<\/strong><\/p>\n\n\n\n

\"H\u00e0n<\/figure>\n\n\n\n

1.1.  H\u00ecnh d\u1ea1ng, k\u00edch th\u01b0\u1edbc v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a 1 m \u1ed1ng ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c gi\u00e1 tr\u1ecb n\u00eau trong H\u00ecnh 1 v\u00e0 B\u1ea3ng 1.<\/p>\n\n\n\n

B\u1ea3ng 1 K\u00edch th\u01b0\u1edbc & Tr\u1ecdng l\u01b0\u1ee3ng<\/strong><\/p>\n\n\n\n

\u0110\u01b0\u1eddng k\u00ednh ngo\u00e0i<\/strong><\/td>Tr\u1ecdng l\u01b0\u1ee3ng, kg\/m\u00e9t<\/strong><\/strong><\/td><\/tr>
\u0110\u1ed9 d\u00e0y th\u00e0nh \u1ed1ng<\/strong><\/td>0.7<\/strong><\/td>0.8<\/strong><\/td>0.9<\/strong><\/td><\/tr>
3<\/td>0.040<\/td>–<\/td>–<\/td><\/tr>
4<\/td>0.057<\/td>0.063<\/td>–<\/td><\/tr>
4.75<\/td>0.070<\/td>–<\/td>–<\/td><\/tr>
5<\/td>0.074<\/td>0.083<\/td>–<\/td><\/tr>
6<\/td>0.091<\/td>0.103<\/td>–<\/td><\/tr>
8<\/td>0.126<\/td>0.142<\/td>0.158<\/td><\/tr>
10<\/td>0.161<\/td>0.182<\/td>0.202<\/td><\/tr>
12<\/td>–<\/td>–<\/td>0.246<\/td><\/tr>
14<\/td>–<\/td>–<\/td>0.291<\/td><\/tr>
15<\/td>–<\/td>–<\/td>0.313<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

  1,2. Chi\u1ec1u d\u00e0i \u1ed1ng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t:<\/p>\n\n\n\n

k\u00edch th\u01b0\u1edbc \u2013 t\u1eeb 3 \u0111\u1ebfn 6 m; theo y\u00eau c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng, cho ph\u00e9p s\u1ea3n xu\u1ea5t \u1ed1ng \u0111o d\u00e0i t\u1edbi 9 m;<\/p>\n\n\n\n

kh\u00f4ng \u0111o \u0111\u01b0\u1ee3c \u2013 t\u1eeb 1 \u0111\u1ebfn 6 m; theo y\u00eau c\u1ea7u c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, cho ph\u00e9p s\u1ea3n xu\u1ea5t \u1ed1ng kh\u00f4ng ti\u00eau chu\u1ea9n d\u00e0i h\u01a1n 6 m;<\/p>\n\n\n\n

b\u1ed9i s\u1ed1 \u2014 trong gi\u1edbi h\u1ea1n c\u1ee7a c\u00e1c \u1ed1ng kh\u00f4ng c\u00f3 k\u00edch th\u01b0\u1edbc v\u1edbi b\u1ed9i s\u1ed1 \u00edt nh\u1ea5t l\u00e0 100 mm.<\/p>\n\n\n\n

Dung sai cho m\u1ed7i l\u1ea7n c\u1eaft \u0111\u1ed1i v\u1edbi \u1ed1ng c\u00f3 chi\u1ec1u d\u00e0i b\u1ed9i s\u1ed1 kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 5 mm. Theo y\u00eau c\u1ea7u c\u1ee7a ng\u01b0\u1eddi ti\u00eau d\u00f9ng, c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng dung sai kh\u00e1c.<\/p>\n\n\n\n

1.3. \u0110\u1ed9 l\u1ec7ch gi\u1edbi h\u1ea1n d\u1ecdc theo chi\u1ec1u d\u00e0i c\u1ee7a \u1ed1ng \u0111o v\u00e0 \u1ed1ng nhi\u1ec1u \u0111o\u1ea1n kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 +10 mm.<\/p>\n\n\n\n

1.4. \u0110\u1ed9 l\u1ec7ch gi\u1edbi h\u1ea1n v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i v\u00e0 \u0111\u1ed9 d\u00e0y th\u00e0nh \u1ed1ng kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 c\u00e1c gi\u00e1 tr\u1ecb quy \u0111\u1ecbnh trong B\u1ea3ng 2.<\/p>\n\n\n\n

 Theo y\u00eau c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng, s\u1ea3n xu\u1ea5t \u1ed1ng c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n: \u0111\u01b0\u1eddng k\u00ednh 10 mm v\u1edbi sai l\u1ec7ch t\u1ed1i \u0111a v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh l\u00e0 \u00b1 0,05; \u0111\u01b0\u1eddng k\u00ednh \u0111\u1ebfn 6 mm v\u1edbi sai l\u1ec7ch t\u1ed1i \u0111a v\u1ec1 \u0111\u1ed9 d\u00e0y th\u00e0nh \u1ed1ng kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 (-0,07, +0,05)  mm.<\/p>\n\n\n\n

1.5. Theo y\u00eau c\u1ea7u c\u1ee7a ng\u01b0\u1eddi ti\u00eau d\u00f9ng, c\u00e1c \u1ed1ng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t v\u1edbi dung sai d\u1ecbch chuy\u1ec3n \u0111\u1ed1i v\u1edbi \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i, trong khi c\u00e1c \u0111\u1ed9 l\u1ec7ch t\u1ed1i \u0111a \u0111\u01b0\u1ee3c x\u00e1c l\u1eadp th\u00f4ng qua th\u1ecfa thu\u1eadn gi\u1eefa nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 ng\u01b0\u1eddi ti\u00eau d\u00f9ng v\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 t\u1ed5ng \u0111\u1ed9 l\u1ec7ch hai ph\u00eda n\u00eau trong B\u1ea3ng 2. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y,<\/p>\n\n\n\n

B\u1ea3ng 2 K\u00edch c\u1ee1 & Dung sai<\/strong> mm<\/p>\n\n\n\n

\u0110\u01b0\u1eddng k\u00ednh ngo\u00e0i<\/td>Dung sai OD<\/td>C\u00e1c \u0111\u1ed9 sai l\u1ec7ch v\u1ec1 \u0111\u1ed9 d\u00e0y th\u00e0nh \u1ed1ng<\/td><\/tr>
B\u00ecnh th\u01b0\u1eddng<\/td>Cao<\/td>B\u00ecnh th\u01b0\u1eddng<\/td>Cao<\/td><\/tr>
D\u01b0\u1edbi 6<\/td>+0.10
-0.12<\/td>		+0.05
-0.07<\/td>		+\/-0.13<\/td>+\/-0.10<\/td><\/tr>
6 tr\u1edf l\u00ean<\/td>+0.10
-0.12<\/td>		+0.05
-0.07<\/td>		+\/-0.10<\/td>+\/-0.07<\/td><\/tr>
t\u1eeb 10 \u0111\u1ebfn 15<\/td>+0.12
-0.14<\/td>		+\/-0.08<\/td>+\/-0.10<\/td>+\/-0.07<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

1.6. \u0110\u1ed9 \u00f4 van v\u00e0 s\u1ef1 ch\u00eanh l\u1ec7ch c\u1ee7a c\u00e1c \u1ed1ng kh\u00f4ng \u0111\u01b0\u1ee3c d\u1eabn \u0111\u1ebfn vi\u1ec7c k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c \u1ed1ng v\u01b0\u1ee3t qu\u00e1 c\u00e1c \u0111\u1ed9 l\u1ec7ch gi\u1edbi h\u1ea1n t\u01b0\u01a1ng \u1ee9ng \u0111\u1ed1i v\u1edbi \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i v\u00e0 \u0111\u1ed9 d\u00e0y th\u00e0nh \u1ed1ng.<\/p>\n\n\n\n

1.7. \u0110\u1ed9 cong c\u1ee7a \u1ed1ng tr\u00ean m\u1ed7i 1 m chi\u1ec1u d\u00e0i kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 6 mm \u0111\u1ed1i v\u1edbi \u1ed1ng c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c th\u00f4ng th\u01b0\u1eddng v\u00e0 5 mm \u0111\u1ed1i v\u1edbi \u1ed1ng c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao.<\/p>\n\n\n\n

Theo y\u00eau c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng, \u0111\u1ed9 cong v\u00eanh c\u1ee7a \u1ed1ng kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 3 mm tr\u00ean m\u1ed7i 1 m chi\u1ec1u d\u00e0i.<\/p>\n\n\n\n

1.8. C\u00e1c \u0111\u1ea7u \u1ed1ng ph\u1ea3i \u0111\u01b0\u1ee3c c\u1eaft vu\u00f4ng g\u00f3c. C\u00e1c \u0111\u1ea7u \u1ed1ng \u0111o ph\u1ea3i \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch h\u1ebft ba-v\u01a1. Theo y\u00eau c\u1ea7u c\u1ee7a ng\u01b0\u1eddi ti\u00eau d\u00f9ng, vi\u1ec7c s\u1ea3n xu\u1ea5t \u1ed1ng \u0111o m\u00e0 kh\u00f4ng v\u00e1t m\u00e9p \u0111\u01b0\u1ee3c cho ph\u00e9p.<\/p>\n\n\n\n

C\u00e1c v\u00ed d\u1ee5 v\u1ec1 c\u00e1ch \u0111\u00e1nh d\u1ea5u:<\/p>\n\n\n\n

\u1ed0ng c\u00f3 \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i 8 mm v\u00e0 \u0111\u1ed9 d\u00e0y th\u00e0nh \u1ed1ng 0,7 mm, chi\u1ec1u d\u00e0i 3000 mm, l\u00e0m b\u1eb1ng th\u00e9p 08kp:<\/p>\n\n\n\n

\u1ed0ng 8 \u04450,7\u04453000-08\u043a\u043f GOST 11249-80<\/p>\n\n\n\n

C\u00f9ng chi\u1ec1u d\u00e0i, b\u1ed9i s\u1ed1 c\u1ee7a 100 mm:<\/p>\n\n\n\n

\u1ed0ng 8×0.7x100kr-08kp GOST 11249-80<\/p>\n\n\n\n

C\u00f9ng chi\u1ec1u d\u00e0i, kh\u00f4ng gi\u1edbi h\u1ea1n:<\/p>\n\n\n\n

\u1ed0ng 8\u04450,7-08\u043a\u043f GOST 11249-80<\/p>\n\n\n\n

Trong k\u00fd hi\u1ec7u \u1ed1ng c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c t\u0103ng cao, sau t\u1eeb “pipe” (\u1ed1ng) s\u1ebd th\u00eam ch\u1eef c\u00e1i “P”; \u1ed1ng thu\u1ed9c h\u1ea1ng ch\u1ea5t l\u01b0\u1ee3ng cao nh\u1ea5t \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u l\u00e0 “B”, v\u00ed d\u1ee5:<\/p>\n\n\n\n

\u1ed0ng P 8\u04450,7-08\u043a\u043f GOST 11249-80<\/p>\n\n\n\n

\u1ed0ng In 8\u04450,7\u04457950-08\u043a\u043f GOST 11249-80<\/p>\n\n\n\n

2. Y\u00caU C\u1ea6U K\u1ef8 THU\u1eacT<\/strong><\/p>\n\n\n\n

2.1. \u1ed0ng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t theo c\u00e1c y\u00eau c\u1ea7u c\u1ee7a ti\u00eau chu\u1ea9n n\u00e0y \u0111\u1ed1i v\u1edbi quy tr\u00ecnh c\u00f4ng ngh\u1ec7 \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t theo quy tr\u00ecnh quy \u0111\u1ecbnh.<\/p>\n\n\n\n

\u1ed0ng \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb d\u1ea3i th\u00e9p c\u00e1c m\u00e1c 08kp v\u00e0 10 theo GOST 1050-88 v\u00e0 08Yu theo GOST 9045-93.<\/p>\n\n\n\n

2.2. C\u00e1c \u1ed1ng ph\u1ea3i \u0111\u01b0\u1ee3c h\u00e0n m\u1ec1m b\u1eb1ng \u0111\u1ed3ng tr\u00ean to\u00e0n b\u1ed9 b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac gi\u1eefa c\u00e1c l\u1edbp trong m\u00f4i tr\u01b0\u1eddng kh\u00ed b\u1ea3o v\u1ec7.<\/p>\n\n\n\n

Kh\u00f4ng cho ph\u00e9p c\u00e1c m\u00e9p d\u00e1n.<\/p>\n\n\n\n

C\u00e1c l\u1edbp b\u1ecb suy gi\u1ea3m kh\u00f4ng \u0111\u00e1ng k\u1ec3 \u0111\u01b0\u1ee3c ph\u00e9p t\u1ed3n t\u1ea1i, mi\u1ec5n l\u00e0 ch\u00fang kh\u00f4ng g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng nh\u0103n ho\u1eb7c g\u1ed3 l\u00ean khi u\u1ed1n theo y\u00eau c\u1ea7u t\u1ea1i \u0111i\u1ec1u 2.9.<\/p>\n\n\n\n

2.3. B\u1ec1 m\u1eb7t ngo\u00e0i v\u00e0 b\u1ec1 m\u1eb7t trong c\u1ee7a \u1ed1ng ph\u1ea3i kh\u00f4ng c\u00f3 v\u1ebft n\u1ee9t, r\u1ed7, khuy\u1ebft t\u1eadt, bong l\u1edbp hay g\u1ec9.<\/p>\n\n\n\n

C\u00e1c r\u1ee7i ro, v\u1ecf bong, v\u1ebft x\u01b0\u1edbc v\u00e0 v\u1ebft l\u00f5m n\u1eb1m trong gi\u1edbi h\u1ea1n sai l\u1ec7ch \u0111\u1ed9 d\u00e0y th\u00e0nh \u1ed1ng \u0111\u01b0\u1ee3c cho ph\u00e9p; c\u00e1c v\u00f9ng \u0111\u1ed3ng ch\u1ea3y c\u1ee5c b\u1ed9 kh\u00f4ng \u0111\u00e1ng k\u1ec3 n\u1eb1m trong gi\u1edbi h\u1ea1n sai l\u1ec7ch \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i; m\u00e0u s\u1eafc b\u1ec1 m\u1eb7t kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u.<\/p>\n\n\n\n

Tr\u00ean b\u1ec1 m\u1eb7t b\u00ean trong c\u1ee7a \u1ed1ng kh\u00f4ng \u0111\u01b0\u1ee3c c\u00f3 b\u1ee5i b\u1ea9n hay s\u1ea3n ph\u1ea9m ch\u00e1y c\u1ee7a ch\u1ea5t b\u00f4i tr\u01a1n; l\u01b0\u1ee3ng nhi\u1ec5m b\u1ea9n c\u00f2n s\u00f3t l\u1ea1i tr\u00ean b\u1ec1 m\u1eb7t trong kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 0,350 g\/m\u00b22<\/sup>.<\/p>\n\n\n\n

Theo y\u00eau c\u1ea7u c\u1ee7a ng\u01b0\u1eddi ti\u00eau d\u00f9ng, l\u01b0\u1ee3ng t\u1ea1p ch\u1ea5t c\u00f2n s\u00f3t l\u1ea1i tr\u00ean b\u1ec1 m\u1eb7t trong c\u1ee7a \u1ed1ng kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 0.177 g\/m\u00b2.2<\/sup>.<\/p>\n\n\n\n

2.4. T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a kim lo\u1ea1i \u1ed1ng ph\u1ea3i tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n n\u00eau trong B\u1ea3ng 3.<\/p>\n\n\n\n

Theo y\u00eau c\u1ea7u c\u1ee7a ng\u01b0\u1eddi ti\u00eau d\u00f9ng, \u0111\u1ed9 gi\u00e3n d\u00e0i t\u01b0\u01a1ng \u0111\u1ed1i (\u03b4) \u0111\u1ed1i v\u1edbi \u1ed1ng c\u00f3 \u0111\u01b0\u1eddng k\u00ednh \u0111\u1ebfn 6 mm ph\u1ea3i \u0111\u1ea1t \u00edt nh\u1ea5t 30%; \u0111\u1ed1i v\u1edbi \u1ed1ng c\u00f3 \u0111\u01b0\u1eddng k\u00ednh tr\u00ean 6 mm, t\u1eeb m\u00e1c th\u00e9p 08kp \u2014 \u00edt nh\u1ea5t 27%, t\u1eeb m\u00e1c th\u00e9p 10 \u2014 kh\u00f4ng d\u01b0\u1edbi 26%.<\/p>\n\n\n\n

M\u00e1c th\u00e9p<\/th>OD, mm<\/th>\u0110\u1ed9 b\u1ec1n k\u00e9o, MPa<\/th>\u0110\u1ed9 gi\u00e3n d\u00e0i, %<\/th><\/tr><\/thead>
08\u043a\u043f, 08\u042e<\/td>6 & \u00edt h\u01a1n<\/td>294<\/td>29<\/td><\/tr>
Tr\u00ean 6<\/td>26<\/td><\/tr>
10<\/td>6 & \u00edt h\u01a1n<\/td>26<\/td><\/tr>
Tr\u00ean 6<\/td>25<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

2.5. Theo y\u00eau c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng, \u1ed1ng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t v\u1edbi b\u1ec1 m\u1eb7t ngo\u00e0i m\u1ea1 k\u1ebdm. \u0110\u1ed9 d\u00e0y l\u1edbp m\u1ea1 k\u1ebdm ph\u1ea3i t\u1ed1i thi\u1ec3u l\u00e0 12 micromet.
2.6. \u1ed0ng ph\u1ea3i ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p l\u1ef1c th\u1ee7y l\u1ef1c 18,4 MPa (180 kgf\/cm2<\/sup> ). Theo y\u00eau c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng, \u1ed1ng ph\u1ea3i ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p l\u1ef1c th\u1ee7y l\u1ef1c 35,7 MPa (350 kgf\/cm\u00b2)2<\/sup>).
2.7. \u1ed0ng ph\u1ea3i ch\u1ecbu \u0111\u01b0\u1ee3c vi\u1ec7c t\u1ea1o hai \u0111\u1ea7u loe m\u00e0 kh\u00f4ng xu\u1ea5t hi\u1ec7n v\u1ebft n\u1ee9t hay bong l\u1edbp t\u1ea1i b\u00e1n k\u00ednh chuy\u1ec3n ti\u1ebfp ngo\u00e0i r = 1,0 \u00b1 0,2 mm.
\u0110\u01b0\u1eddng k\u00ednh m\u1eb7t b\u00edch t\u1ea1o th\u00e0nh tr\u00ean \u1ed1ng hai m\u1eb7t b\u00edch ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi gi\u00e1 tr\u1ecb n\u00eau trong B\u1ea3ng 4.<\/p>\n\n\n\n

\u0110\u01b0\u1eddng k\u00ednh ngo\u00e0i (OD) c\u1ee7a \u1ed1ng
(mm)<\/th>		\u0110\u01b0\u1eddng k\u00ednh ph\u1ea7n loe
(t\u1ed1i thi\u1ec3u, mm)<\/th>		\u0110\u01b0\u1eddng k\u00ednh ngo\u00e0i (OD) c\u1ee7a \u1ed1ng
(mm)<\/th>		\u0110\u01b0\u1eddng k\u00ednh ph\u1ea7n loe
(t\u1ed1i thi\u1ec3u, mm)<\/th>		\u0110\u01b0\u1eddng k\u00ednh ngo\u00e0i (OD) c\u1ee7a \u1ed1ng
(mm)<\/th>		\u0110\u01b0\u1eddng k\u00ednh ph\u1ea7n loe
(t\u1ed1i thi\u1ec3u, mm)<\/th><\/tr><\/thead>
3<\/td>4.2<\/td>6<\/td>8.5<\/td>12<\/td>15.5<\/td><\/tr>
4<\/td>5.6<\/td>8<\/td>10.8<\/td>14<\/td>16.7<\/td><\/tr>
5<\/td>7.0<\/td>10<\/td>13.5<\/td>15<\/td>17.8<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

2.8. \u1ed0ng ph\u1ea3i ch\u1ecbu \u0111\u01b0\u1ee3c \u00e9p d\u1eb9t m\u00e0 kh\u00f4ng b\u1ecb r\u00e1ch m\u00e9p ngo\u00e0i \u0111\u1ebfn kho\u1ea3ng c\u00e1ch gi\u1eefa hai m\u1eb7t \u00e9p b\u1eb1ng 4S (S \u2013 \u0111\u1ed9 d\u00e0y danh ngh\u0129a c\u1ee7a th\u00e0nh \u1ed1ng).
\u1ed0ng c\u00f3 \u0111\u1ed9 gi\u00e3n d\u00e0i t\u01b0\u01a1ng \u0111\u1ed1i t\u1ed1i thi\u1ec3u 30% ph\u1ea3i ch\u1ecbu \u0111\u01b0\u1ee3c th\u1eed \u00e9p d\u1eb9t \u0111\u1ebfn kho\u1ea3ng c\u00e1ch gi\u1eefa hai m\u1eb7t \u00e9p l\u00e0 3S.
2.9. \u1ed0ng ph\u1ea3i ch\u1ecbu \u0111\u01b0\u1ee3c u\u1ed1n quanh tr\u1ee5c c\u00f3 b\u00e1n k\u00ednh b\u1eb1ng ba l\u1ea7n \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i.
2.10. \u1ed0ng ph\u1ea3i ch\u1ecbu \u0111\u01b0\u1ee3c bi\u1ebfn d\u1ea1ng d\u1ebbo cho \u0111\u1ebfn khi \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i t\u0103ng l\u00ean 20%.<\/p>\n\n\n\n

3. QUY T\u1eaeC CH\u1ea4P NH\u1eacN<\/strong><\/p>\n\n\n\n

3.1. \u1ed0ng \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn theo t\u1eebng l\u00f4. M\u1ed7i l\u00f4 ph\u1ea3i bao g\u1ed3m c\u00e1c \u1ed1ng c\u00f3 c\u00f9ng \u0111\u01b0\u1eddng k\u00ednh, \u0111\u1ed9 d\u00e0y th\u00e0nh \u1ed1ng v\u00e0 m\u00e1c th\u00e9p, v\u00e0 ph\u1ea3i \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn b\u1edfi m\u1ed9t t\u00e0i li\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng duy nh\u1ea5t bao g\u1ed3m: <\/p>\n\n\n\n

    \n
  • Nh\u00e3n hi\u1ec7u ho\u1eb7c t\u00ean c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 nh\u00e3n hi\u1ec7u c\u1ee7a h\u1ecd;<\/li>\n\n\n\n
  • T\u00ean doanh nghi\u1ec7p \u2013 ng\u01b0\u1eddi ti\u00eau d\u00f9ng;<\/li>\n\n\n\n
  • K\u00fd hi\u1ec7u ti\u00eau chu\u1ea9n n\u00e0y;<\/li>\n\n\n\n
  • K\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c \u1ed1ng;<\/li>\n\n\n\n
  • M\u00e1c th\u00e9p;<\/li>\n\n\n\n
  • S\u1ed1 l\u1ea7n n\u1ea5u ch\u1ea3y ho\u1eb7c l\u00f4, th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a \u1ed1ng kim lo\u1ea1i ph\u1ea3i tu\u00e2n theo t\u00e0i li\u1ec7u v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng do nh\u00e0 s\u1ea3n xu\u1ea5t ph\u00f4i cung c\u1ea5p;<\/li>\n\n\n\n
  • M\u00e9t v\u00e0 s\u1ed1 l\u01b0\u1ee3ng \u1ed1ng theo chi\u1ebfc;<\/li>\n\n\n\n
  • K\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m.<\/li>\n<\/ul>\n\n\n\n

    S\u1ed1 l\u01b0\u1ee3ng \u1ed1ng trong m\u1ed9t l\u00f4 kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 500 chi\u1ebfc.<\/p>\n\n\n\n

    3.2. Trong tr\u01b0\u1eddng h\u1ee3p c\u00f3 tranh ch\u1ea5p v\u1ec1 \u0111\u00e1nh gi\u00e1 ch\u1ea5t l\u01b0\u1ee3ng th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a kim lo\u1ea1i, m\u1ed9t \u1ed1ng t\u1eeb l\u00f4 s\u1ebd \u0111\u01b0\u1ee3c ch\u1ecdn \u0111\u1ec3 ki\u1ec3m tra.<\/p>\n\n\n\n

     3,3. Ki\u1ec3m tra b\u1ec1 m\u1eb7t ngo\u00e0i, k\u00edch th\u01b0\u1edbc v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng l\u1edbp h\u00e0n \u0111\u1ed3ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u00ean t\u1eebng l\u00f4 \u1ed1ng.<\/p>\n\n\n\n

    3.4. \u0110\u1ec3 ki\u1ec3m tra b\u1ec1 m\u1eb7t b\u00ean trong nh\u1eb1m ph\u00e1t hi\u1ec7n nhi\u1ec5m b\u1ea9n, l\u1ea5y m\u1ed9t \u1ed1ng t\u1eeb l\u00f4. Vi\u1ec7c ki\u1ec3m so\u00e1t m\u1ee9c \u0111\u1ed9 nhi\u1ec5m b\u1ea9n tr\u00ean b\u1ec1 m\u1eb7t b\u00ean trong c\u1ee7a \u1ed1ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo y\u00eau c\u1ea7u c\u1ee7a ng\u01b0\u1eddi ti\u00eau d\u00f9ng.<\/p>\n\n\n\n

    3.5. \u0110\u1ed1i v\u1edbi c\u00e1c th\u1eed nghi\u1ec7m k\u00e9o, u\u1ed1n k\u00e9p, d\u1eb9t, u\u1ed1n cong, ph\u00e2n b\u1ed1, th\u1eed th\u1ee7y l\u1ef1c \u0111\u1ebfn khi ph\u00e1 h\u1ee7y v\u00e0 ki\u1ec3m tra \u0111\u1ed9 d\u00e0y l\u1edbp m\u1ea1 k\u1ebdm, l\u1ea5y hai \u1ed1ng t\u1eeb l\u00f4. Th\u1eed nghi\u1ec7m ph\u00e2n b\u1ed1 \u1ed1ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo y\u00eau c\u1ea7u c\u1ee7a ng\u01b0\u1eddi ti\u00eau d\u00f9ng.<\/p>\n\n\n\n

    3.6. \u0110\u1ec3 th\u1eed nghi\u1ec7m \u00e1p l\u1ef1c th\u1ee7y l\u1ef1c \u0111\u1ed1i v\u1edbi \u1ed1ng, l\u1ea5y \u00edt nh\u1ea5t 1% s\u1ed1 \u1ed1ng trong l\u00f4.<\/p>\n\n\n\n

    3.7. Khi nh\u1eadn \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m kh\u00f4ng \u0111\u1ea1t y\u00eau c\u1ea7u \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 ch\u1ec9 ti\u00eau n\u00e0o, s\u1ebd ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m l\u1ea1i tr\u00ean s\u1ed1 l\u01b0\u1ee3ng \u1ed1ng t\u0103ng g\u1ea5p \u0111\u00f4i \u0111\u01b0\u1ee3c ch\u1ecdn t\u1eeb c\u00f9ng m\u1ed9t l\u00f4.<\/p>\n\n\n\n

    K\u1ebft qu\u1ea3 c\u1ee7a c\u00e1c ph\u00e9p th\u1eed l\u1eb7p l\u1ea1i \u00e1p d\u1ee5ng cho to\u00e0n b\u1ed9 l\u00f4.<\/p>\n\n\n\n

    4. Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m<\/strong><\/p>\n\n\n\n

    4.1. \u0110\u1ec3 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng, m\u1ed9t m\u1eabu \u0111\u01b0\u1ee3c c\u1eaft t\u1eeb m\u1ed7i \u1ed1ng \u0111\u01b0\u1ee3c ch\u1ecdn.<\/p>\n\n\n\n

    4.2. Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh theo GOST 22536.0-87, GOST 22536.1-88, GOST 22536.2-87, GOST 22536.3-88, GOST 22536.4-88, GOST 22536.5-87, GOST 22536.6-88. M\u1eabu \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn theo GOST 7565-81.<\/p>\n\n\n\n

    4.3. Vi\u1ec7c ki\u1ec3m tra b\u1ec1 m\u1eb7t ngo\u00e0i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n m\u00e0 kh\u00f4ng s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb ph\u00f3ng \u0111\u1ea1i.<\/p>\n\n\n\n

    4.4. \u00d4 nhi\u1ec5m c\u00f2n s\u00f3t l\u1ea1i tr\u00ean b\u1ec1 m\u1eb7t trong c\u1ee7a \u1ed1ng \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t b\u1eb1ng c\u00e1ch c\u00e2n m\u1eabu tr\u00ean c\u00e2n ph\u00e2n t\u00edch tr\u01b0\u1edbc khi r\u1eeda b\u1ec1 m\u1eb7t trong c\u1ee7a \u1ed1ng b\u1eb1ng dung m\u00f4i v\u1edbi chi\u1ec1u d\u00e0i 0,5\u20131 m, cu\u1ed9n th\u00e0nh h\u00ecnh xo\u1eafn \u1ed1c, v\u00e0 sau \u0111\u00f3 r\u1eeda s\u1ea1ch, s\u1ea5y kh\u00f4. Dung m\u00f4i s\u1eed d\u1ee5ng l\u00e0 x\u0103ng B-70 theo GOST 3134-78 ho\u1eb7c freon 113 theo GOST 23844-79.<\/p>\n\n\n\n

     4.4a. Ki\u1ec3m so\u00e1t \u0111\u1ed9 d\u00e0y l\u1edbp m\u1ea1 k\u1ebdm \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p nh\u1ecf gi\u1ecdt theo GOST 9.302-88.<\/p>\n\n\n\n

    4.5. Ch\u1ea5t l\u01b0\u1ee3ng m\u1ed1i h\u00e0n \u1ed1ng \u0111\u01b0\u1ee3c ki\u1ec3m tra b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m so\u00e1t kh\u00f4ng ph\u00e1 h\u1ee7y theo t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt. Trong tr\u01b0\u1eddng h\u1ee3p c\u00f3 tranh ch\u1ea5p ph\u00e1t sinh khi ki\u1ec3m so\u00e1t \u1ed1ng b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m so\u00e1t kh\u00f4ng ph\u00e1 h\u1ee7y, s\u1ebd ti\u1ebfn h\u00e0nh th\u1eed u\u1ed1n.<\/p>\n\n\n\n

    4.6. Chi\u1ec1u d\u00e0i \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng th\u01b0\u1edbc d\u00e2y theo ti\u00eau chu\u1ea9n GOST 7502-98.<\/p>\n\n\n\n

    \u0110\u01b0\u1eddng k\u00ednh ngo\u00e0i v\u00e0 \u0111\u1ed9 d\u00e0y th\u00e0nh \u1ed1ng \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng th\u01b0\u1edbc c\u1eb7p vi k\u1ebf theo ti\u00eau chu\u1ea9n GOST 6507-90.<\/p>\n\n\n\n

    \u0110\u1ed9 cong c\u1ee7a \u1ed1ng \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng th\u01b0\u1edbc c\u0103n ch\u1ec9nh theo ti\u00eau chu\u1ea9n GOST 8026-92 v\u00e0 \u0111\u1ea7u d\u00f2 cho ki\u1ec3m tra kh\u00f4ng ph\u00e1 h\u1ee7y (ND).<\/p>\n\n\n\n

    4.7. Th\u1eed k\u00e9o \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo ti\u00eau chu\u1ea9n GOST 10006-80 tr\u00ean m\u1eabu ng\u1eafn d\u01b0\u1edbi d\u1ea1ng m\u1ed9t \u0111o\u1ea1n \u1ed1ng.<\/p>\n\n\n\n

    4.8. Th\u1eed nghi\u1ec7m hai m\u1eb7t \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo y\u00eau c\u1ea7u t\u1ea1i \u0110i\u1ec1u 2.8.<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

     4.9. Th\u1eed nghi\u1ec7m d\u1eb9t \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo GOST 8695-75. Khi th\u1eed nghi\u1ec7m, m\u00e9p ngo\u00e0i ph\u1ea3i di chuy\u1ec3n d\u1ecdc theo \u0111\u01b0\u1eddng cong c\u00f3 \u0111\u1ed9 u\u1ed1n l\u1edbn nh\u1ea5t.<\/p>\n\n\n\n

    4.10. Th\u1eed nghi\u1ec7m u\u1ed1n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo GOST 3728-78 v\u1edbi vi\u1ec7c s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u \u0111\u1ed9n.<\/p>\n\n\n\n

    4.11. Th\u1eed nghi\u1ec7m ph\u00e2n b\u1ed1 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo GOST 8694-75 b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng \u0111\u1ea7u c\u00f4n c\u00f3 \u0111\u1ed9 c\u00f4n 1:10.<\/p>\n\n\n\n

    \u1ed0ng \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1eed ph\u00e2n ph\u1ed1i th\u00ec kh\u00f4ng ph\u1ea3i th\u1ef1c hi\u1ec7n th\u1eed \u00e9p d\u1eb9t.<\/p>\n\n\n\n

    4.12. Th\u1eed nghi\u1ec7m th\u1ee7y l\u1ef1c \u0111\u1ed1i v\u1edbi \u1ed1ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo GOST 3845-75 v\u1edbi th\u1eddi gian gi\u1eef \u00e1p su\u1ea5t t\u1ed1i thi\u1ec3u 5 s.<\/p>\n\n\n\n

    Vi\u1ec7c ki\u1ec3m tra \u1ed1ng b\u1eb1ng \u00e1p l\u1ef1c th\u1ee7y l\u1ef1c tr\u01b0\u1edbc khi ph\u00e1 h\u1ee7y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt.<\/p>\n\n\n\n

     5. \u0110\u00c1NH D\u1ea4U, \u0110\u00d3NG G\u00d3I, V\u1eacN CHUY\u1ec2N V\u00c0 B\u1ea2O QU\u1ea2N<\/p>\n\n\n\n

    5.1. \u0110\u00e1nh d\u1ea5u, \u0111\u00f3ng g\u00f3i, v\u1eadn chuy\u1ec3n v\u00e0 b\u1ea3o qu\u1ea3n \u1ed1ng \u2014 theo GOST 10692-80.<\/p>\n\n\n\n

    5.1.1. Theo th\u1ecfa thu\u1eadn gi\u1eefa nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 ng\u01b0\u1eddi ti\u00eau d\u00f9ng, vi\u1ec7c \u0111\u00f3ng g\u00f3i \u1ed1ng th\u00e0nh t\u1eebng bao ho\u1eb7c b\u00f3 l\u00e0 \u0111\u01b0\u1ee3c ph\u00e9p. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, c\u00e1c \u1ed1ng ph\u1ea3i \u0111\u01b0\u1ee3c bu\u1ed9c b\u1eb1ng d\u00e2y th\u00e9p theo GOST 3282-74 t\u1ea1i ba v\u1ecb tr\u00ed, b\u1ecdc gi\u1ea5y d\u1ea7u theo GOST 8828-89 d\u1ecdc theo chi\u1ec1u d\u00e0i v\u00e0 \u1edf hai \u0111\u1ea7u, sau \u0111\u00f3 b\u1ecdc th\u00eam v\u1eadt li\u1ec7u \u0111\u00f3ng g\u00f3i (th\u1ea3m, v\u1ea3i kh\u00f4ng d\u1ec7t, v\u1ea3i v\u1ee5n ho\u1eb7c s\u1ee3i nh\u00e2n t\u1ea1o) v\u00e0 bu\u1ed9c l\u1ea1i b\u1eb1ng d\u00e2y th\u00e9p theo GOST 3282-74 t\u1ea1i \u00edt nh\u1ea5t ba v\u1ecb tr\u00ed.<\/p>\n\n\n\n

    5.2. \u0110\u00f3ng g\u00f3i \u1ed1ng \u2013 theo y\u00eau c\u1ea7u c\u1ee7a ng\u01b0\u1eddi ti\u00eau d\u00f9ng.<\/p>\n\n\n\n

     5.2.1. M\u1ed7i l\u00f4 \u0111\u01b0\u1ee3c bu\u1ed9c b\u1eb1ng d\u00e2y th\u00e9p theo GOST 3282-74 ho\u1eb7c b\u0103ng bu\u1ed9c theo GOST 3560-73 t\u1ea1i \u00edt nh\u1ea5t b\u1ed1n v\u1ecb tr\u00ed.<\/p>\n\n\n\n

    5.2.2. \u1ed0ng \u0111\u01b0\u1ee3c giao trong c\u00e1c bao b\u00ec g\u1ed3m nhi\u1ec1u l\u00f4, m\u1ed7i bao b\u00ec ch\u1ec9 ch\u1ee9a m\u1ed9t lo\u1ea1i th\u00e9p v\u1edbi t\u1ed5ng chi\u1ec1u d\u00e0i kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 15.000 m.<\/p>\n\n\n\n

     5.2.3. \u0110\u1ec3 ng\u0103n ng\u1eeba h\u01a1i \u1ea9m v\u00e0 b\u1ee5i x\u00e2m nh\u1eadp v\u00e0o \u1ed1ng, m\u1ed7i bao b\u00ec \u1ed1ng ph\u1ea3i \u0111\u01b0\u1ee3c b\u1ecdc d\u1ecdc to\u00e0n b\u1ed9 chi\u1ec1u d\u00e0i b\u1eb1ng hai l\u1edbp gi\u1ea5y parafin theo GOST 9569-79 ho\u1eb7c gi\u1ea5y bitum theo GOST 515-77. T\u1ea1i hai \u0111\u1ea7u bao b\u00ec, gi\u1ea5y ph\u1ea3i \u0111\u01b0\u1ee3c b\u1ecbt k\u00edn c\u1ea9n th\u1eadn; sau \u0111\u00f3 hai \u0111\u1ea7u bao b\u00ec ph\u1ea3i \u0111\u01b0\u1ee3c qu\u1ea5n b\u1eb1ng v\u1ea3i \u0111\u00f3ng g\u00f3i theo GOST 30090-93 ho\u1eb7c b\u1eb1ng v\u1ea3i s\u1ee3i nh\u00e2n t\u1ea1o ho\u1eb7c v\u1ea3i kh\u00f4ng d\u1ec7t, v\u1eadt li\u1ec7u m\u00e0ng \u1edf kho\u1ea3ng c\u00e1ch kh\u00f4ng nh\u1ecf h\u01a1n 1 m t\u00ednh t\u1eeb m\u1ed7i \u0111\u1ea7u. C\u00e1c \u1ed1ng \u0111\u00e3 \u0111\u00f3ng g\u00f3i ph\u1ea3i \u0111\u01b0\u1ee3c x\u1ebfp l\u00ean gi\u00e1 g\u1ed7 v\u00e0 bu\u1ed9c ch\u1eb7t b\u1eb1ng b\u0103ng \u0111\u00f3ng g\u00f3i theo GOST 3560-73 ho\u1eb7c d\u00e2y th\u00e9p theo GOST 3282-74. Kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c m\u1eaft x\u00edch kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 1,5 m. Chi\u1ec1u d\u00e0i c\u1ee7a m\u1ed9t gi\u00e1 ph\u1ea3i g\u1ed3m \u00edt nh\u1ea5t hai m\u1eaft x\u00edch. C\u00e1c thanh ngang c\u1ee7a gi\u00e1 ph\u1ea3i nh\u00f4 ra ngo\u00e0i hai \u0111\u1ea7u bao b\u00ec m\u1ed9t \u0111o\u1ea1n kh\u00f4ng qu\u00e1 30 mm.<\/p>\n