{"id":4509,"date":"2026-05-23T15:27:02","date_gmt":"2026-05-23T15:27:02","guid":{"rendered":"https:\/\/cyan-finch-538096.hostingersite.com\/?p=4509"},"modified":"2026-06-03T05:04:02","modified_gmt":"2026-06-03T05:04:02","slug":"bolt-nut-stainless-steel","status":"publish","type":"post","link":"https:\/\/productionscrews.com\/vi\/bolt-nut-stainless-steel\/","title":{"rendered":"Bu l\u00f4ng \u0111ai \u1ed1c b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9: C\u00e1c lo\u1ea1i, Gh\u00e9p n\u1ed1i v\u00e0 H\u01b0\u1edbng d\u1eabn mua h\u00e0ng"},"content":{"rendered":"

C\u00e1c b\u1ed9 ph\u1eadn bu l\u00f4ng \u0111ai \u1ed1c b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 k\u1ebft h\u1ee3p c\u00e1c bu l\u00f4ng ch\u1ed1ng \u0103n m\u00f2n, \u0111ai \u1ed1c ph\u00f9 h\u1ee3p v\u00e0 \u0111\u1ec7m cho c\u00e1c m\u1ed1i n\u1ed1i \u1ea9m \u01b0\u1edbt, ngo\u00e0i tr\u1eddi, h\u00e0ng h\u1ea3i, th\u1ef1c ph\u1ea9m, h\u00f3a ch\u1ea5t v\u00e0 c\u00f4ng nghi\u1ec7p, n\u01a1i vi\u1ec7c ki\u1ec3m so\u00e1t g\u1ec9 s\u00e9t quan tr\u1ecdng nh\u01b0 \u0111\u1ed9 tin c\u1eady c\u1ee7a k\u1eb9p.<\/strong><\/p>\r\n

Bu l\u00f4ng \u0111ai \u1ed1c b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9<\/strong> c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi m\u1ed9t m\u1ed1i n\u1ed1i c\u1ea7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, v\u1ebb ngo\u00e0i s\u1ea1ch s\u1ebd v\u00e0 t\u1ea3i k\u1eb9p \u0111\u00e1ng tin c\u1eady trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt, ngo\u00e0i tr\u1eddi, h\u00f3a ch\u1ea5t, th\u1ef1c ph\u1ea9m, h\u00e0ng h\u1ea3i ho\u1eb7c c\u00f4ng nghi\u1ec7p chung. C\u1ee5m t\u1eeb n\u00e0y c\u00f3 th\u1ec3 nghe c\u00f3 v\u1ebb \u0111\u01a1n gi\u1ea3n, nh\u01b0ng s\u1ef1 k\u1ebft h\u1ee3p bu l\u00f4ng v\u00e0 \u0111ai \u1ed1c b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u00fang ph\u1ee5 thu\u1ed9c v\u00e0o c\u1ea5p \u0111\u1ed9, \u0111\u1ed9 kh\u1edbp ren, l\u1edbp s\u1ee9c m\u1ea1nh, l\u1ef1a ch\u1ecdn \u0111\u1ec7m, \u0111i\u1ec1u ki\u1ec7n b\u1ec1 m\u1eb7t, nguy c\u01a1 k\u1eb9t v\u00e0 m\u00f4i tr\u01b0\u1eddng m\u00e0 m\u1ed1i n\u1ed1i s\u1ebd ho\u1ea1t \u0111\u1ed9ng.<\/p>\r\n\r\n

\"C\u00e1c\r\n
Bu l\u00f4ng, \u0111ai \u1ed1c v\u00e0 \u0111\u1ec7m b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 cho c\u00e1c b\u1ed9 ph\u1eadn ch\u1ed1ng \u0103n m\u00f2n.<\/figcaption>\r\n<\/figure>\r\n\r\n

\u0110\u1ed1i v\u1edbi c\u00e1c nh\u00f3m mua s\u1eafm, k\u1ef9 s\u01b0 v\u00e0 ng\u01b0\u1eddi mua b\u1ea3o tr\u00ec, c\u00e2u h\u1ecfi quan tr\u1ecdng nh\u1ea5t kh\u00f4ng ch\u1ec9 l\u00e0 \u201cCh\u00fang ta c\u00f3 n\u00ean s\u1eed d\u1ee5ng th\u00e9p kh\u00f4ng g\u1ec9 kh\u00f4ng?\u201d C\u00e2u h\u1ecfi t\u1ed1t h\u01a1n l\u00e0: c\u1ea5p \u0111\u1ed9 th\u00e9p kh\u00f4ng g\u1ec9 n\u00e0o, ki\u1ec3u \u0111ai \u1ed1c n\u00e0o v\u00e0 ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t n\u00e0o s\u1ebd ng\u0103n ng\u1eeba g\u1ec9 s\u00e9t, k\u1eb9t, l\u1ecfng l\u1ebbo ho\u1eb7c h\u1ecfng h\u00f3c s\u1edbm? H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch c\u00e1ch ch\u1ecdn bu l\u00f4ng v\u00e0 \u0111ai \u1ed1c b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 cho s\u1ea3n xu\u1ea5t, s\u1eeda ch\u1eefa v\u00e0 cung c\u1ea5p OEM.<\/p>\r\n

B\u1ed9 l\u1eafp r\u00e1p bu l\u00f4ng v\u00e0 \u0111ai \u1ed1c b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 g\u00ec?<\/h2>\r\n

B\u1ed9 l\u1eafp r\u00e1p bu l\u00f4ng v\u00e0 \u0111ai \u1ed1c b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 m\u1ed9t b\u1ed9 ph\u1eadn c\u01a1 kh\u00ed n\u01a1i m\u1ed9t bu l\u00f4ng c\u00f3 ren \u0111i qua m\u1ed9t ho\u1eb7c nhi\u1ec1u th\u00e0nh ph\u1ea7n v\u00e0 \u0111\u01b0\u1ee3c si\u1ebft ch\u1eb7t b\u1eb1ng m\u1ed9t \u0111ai \u1ed1c c\u00f3 ren b\u00ean trong ph\u00f9 h\u1ee3p. Bu l\u00f4ng t\u1ea1o ra l\u1ef1c k\u1eb9p, trong khi \u0111ai \u1ed1c cung c\u1ea5p ren gh\u00e9p n\u1ed1i gi\u1eef cho b\u1ed9 l\u1eafp r\u00e1p l\u1ea1i v\u1edbi nhau.<\/p>\r\n

So v\u1edbi c\u00e1c ch\u1ed1t th\u00e9p cacbon, ph\u1ee5 ki\u1ec7n th\u00e9p kh\u00f4ng g\u1ec9<\/a> ch\u1ee9a crom, t\u1ea1o th\u00e0nh m\u1ed9t l\u1edbp oxit th\u1ee5 \u0111\u1ed9ng tr\u00ean b\u1ec1 m\u1eb7t. L\u1edbp th\u1ee5 \u0111\u1ed9ng n\u00e0y gi\u00fap ch\u1ed1ng l\u1ea1i g\u1ec9 \u0111\u1ecf v\u00e0 v\u1ebft \u1ed1. Trong nhi\u1ec1u \u1ee9ng d\u1ee5ng, th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn kh\u00f4ng ph\u1ea3i v\u00ec n\u00f3 lu\u00f4n m\u1ea1nh h\u01a1n th\u00e9p h\u1ee3p kim, m\u00e0 v\u00ec n\u00f3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n khi ti\u1ebfp x\u00fac v\u1edbi \u0111\u1ed9 \u1ea9m, r\u1eeda tr\u00f4i, h\u00f3a ch\u1ea5t nh\u1eb9 v\u00e0 \u0103n m\u00f2n th\u1ea9m m\u1ef9.<\/p>\r\n

N\u1ebfu b\u1ea1n c\u1ea7n c\u00e1i nh\u00ecn t\u1ed5ng quan r\u1ed9ng h\u01a1n v\u1ec1 c\u00e1c lo\u1ea1i thi\u1ebft b\u1ecb c\u1ed1 \u0111\u1ecbnh kh\u00e1c nhau, h\u00e3y xem h\u01b0\u1edbng d\u1eabn c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 l\u1ef1a ch\u1ecdn bu l\u00f4ng \u0111ai \u1ed1c<\/a>. N\u1ebfu d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n t\u1eadp trung c\u1ee5 th\u1ec3 v\u00e0o bu l\u00f4ng, b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 so s\u00e1nh c\u00e1c t\u00f9y ch\u1ecdn trong h\u01b0\u1edbng d\u1eabn bu l\u00f4ng b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9<\/a>.<\/p>\r\n\r\n

\"B\u1ed9\r\n
C\u00e1c lo\u1ea1i v\u00e0 c\u1ea5p \u0111\u1ed9 thi\u1ebft b\u1ecb c\u1ed1 \u0111\u1ecbnh b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 ph\u1ed5 bi\u1ebfn cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p.<\/figcaption>\r\n<\/figure>\r\n\r\n

Ti\u00eau chu\u1ea9n th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt m\u00e0 ng\u01b0\u1eddi mua n\u00ean tr\u00edch d\u1eabn<\/h2>\r\n

S\u1eed d\u1ee5ng c\u00e1c ti\u00eau chu\u1ea9n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u1eadt li\u1ec7u, ren, k\u00edch th\u01b0\u1edbc v\u00e0 k\u1ef3 v\u1ecdng ki\u1ec3m tra tr\u01b0\u1edbc khi y\u00eau c\u1ea7u b\u00e1o gi\u00e1.<\/strong> C\u00e1ch nhanh nh\u1ea5t \u0111\u1ec3 g\u00e2y nh\u1ea7m l\u1eabn trong \u0111\u01a1n \u0111\u1eb7t h\u00e0ng bu l\u00f4ng \u0111ai \u1ed1c inox l\u00e0 ch\u1ec9 ghi \u201cbu l\u00f4ng v\u00e0 \u0111ai \u1ed1c inox\u201d tr\u00ean y\u00eau c\u1ea7u b\u00e1o gi\u00e1. C\u1ee5m t\u1eeb \u0111\u00f3 kh\u00f4ng cho nh\u00e0 m\u00e1y bi\u1ebft ng\u01b0\u1eddi mua c\u1ea7n ren h\u1ec7 m\u00e9t hay h\u1ec7 inch, inox A2 hay A4, ren to\u00e0n ph\u1ea7n hay b\u00e1n ph\u1ea7n, b\u01b0\u1edbc ren th\u00f4 hay m\u1ecbn, lo\u1ea1i \u0111ai \u1ed1c l\u1ee5c gi\u00e1c<\/a> \u0111ai \u1ed1c l\u1ee5c gi\u00e1c th\u01b0\u1eddng hay n\u1eb7ng, th\u1ee5 \u0111\u1ed9ng h\u00f3a, b\u00f4i tr\u01a1n, hay t\u00e0i li\u1ec7u ch\u1ee9ng nh\u1eadn.<\/p>\r\n

\u0110\u1ed1i v\u1edbi bu l\u00f4ng, v\u00edt v\u00e0 \u0111inh t\u00e1n b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 theo m\u00e9t, tham chi\u1ebfu thu\u1ed9c t\u00ednh c\u01a1 h\u1ecdc ch\u00ednh l\u00e0 ISO 3506-1<\/a>. \u0110\u1ed1i v\u1edbi \u0111ai \u1ed1c b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9, tham chi\u1ebfu ph\u00f9 h\u1ee3p l\u00e0 ISO 3506-2<\/a>. Nh\u1eefng ti\u00eau chu\u1ea9n n\u00e0y quan tr\u1ecdng v\u00ec m\u1ed9t k\u00fd hi\u1ec7u nh\u01b0 A2-70 ho\u1eb7c A4-80 kh\u00f4ng ph\u1ea3i l\u00e0 trang tr\u00ed; n\u00f3 truy\u1ec1n \u0111\u1ea1t nh\u00f3m th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 l\u1edbp thu\u1ed9c t\u00ednh. Trong ng\u00f4n ng\u1eef mua s\u1eafm th\u1ef1c t\u1ebf, A2 th\u01b0\u1eddng ch\u1ec9 \u0111\u1ebfn gia \u0111\u00ecnh 304, trong khi A4 th\u01b0\u1eddng ch\u1ec9 \u0111\u1ebfn gia \u0111\u00ecnh 316. S\u1ed1, ch\u1eb3ng h\u1ea1n nh\u01b0 70 ho\u1eb7c 80, ch\u1ec9 ra l\u1edbp s\u1ee9c m\u1ea1nh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho thi\u1ebft b\u1ecb c\u1ed1 \u0111\u1ecbnh.<\/p>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Nh\u1eefng g\u00ec c\u1ea7n ch\u1ec9 \u0111\u1ecbnh<\/th>\r\nV\u00ed d\u1ee5<\/th>\r\nT\u1ea1i sao \u0111i\u1ec1u \u0111\u00f3 quan tr\u1ecdng<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
Ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m<\/td>\r\nDIN 933, ISO 4017, DIN 6921, DIN 934<\/td>\r\nKi\u1ec3m so\u00e1t ki\u1ec3u \u0111\u1ea7u, k\u00edch th\u01b0\u1edbc v\u00e0 \u0111\u1ed9 v\u1eeba<\/td>\r\n<\/tr>\r\n
Nh\u00f3m v\u1eadt li\u1ec7u<\/td>\r\nA2 \/ 304 ho\u1eb7c A4 \/ 316<\/td>\r\nKi\u1ec3m so\u00e1t kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 chi ph\u00ed<\/td>\r\n<\/tr>\r\n
L\u1edbp t\u00ednh ch\u1ea5t<\/td>\r\nA2-70, A4-70, A4-80<\/td>\r\nKi\u1ec3m so\u00e1t k\u1ef3 v\u1ecdng v\u1ec1 \u0111\u1ed9 b\u1ec1n k\u00e9o<\/td>\r\n<\/tr>\r\n
Ren<\/td>\r\nM10 x 1.5, M12 x 1.75, 3\/8-16 UNC<\/td>\r\nNg\u0103n ch\u1eb7n vi\u1ec7c k\u1ebft h\u1ee3p sai gi\u1eefa bu l\u00f4ng v\u00e0 \u0111ai \u1ed1c<\/td>\r\n<\/tr>\r\n
Ho\u00e0n thi\u1ec7n ho\u1eb7c x\u1eed l\u00fd<\/td>\r\nB\u00ecnh th\u01b0\u1eddng, \u0111\u00e3 x\u1eed l\u00fd th\u1ee5 \u0111\u1ed9ng, \u0111\u00e3 s\u00e1p, ch\u1ed1ng k\u1eb9t, \u0111\u00e1nh b\u00f3ng<\/td>\r\n\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn v\u1ebb ngo\u00e0i c\u1ee7a s\u1ef1 \u0103n m\u00f2n v\u00e0 h\u00e0nh vi l\u1eafp \u0111\u1eb7t<\/td>\r\n<\/tr>\r\n
T\u00e0i li\u1ec7u<\/td>\r\nCh\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u, b\u00e1o c\u00e1o ki\u1ec3m tra, y\u00eau c\u1ea7u phun mu\u1ed1i<\/td>\r\nH\u1ed7 tr\u1ee3 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 ki\u1ec3m tra \u0111\u1ea7u v\u00e0o<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n

Trong th\u1ef1c t\u1ebf, m\u1ed9t y\u00eau c\u1ea7u b\u00e1o gi\u00e1 r\u00f5 r\u00e0ng c\u00f3 th\u1ec3 ghi: \u201cBu l\u00f4ng l\u1ee5c gi\u00e1c M10 x 40 DIN 933, inox A4-70, k\u00e8m \u0111ai \u1ed1c DIN 934 A4 v\u00e0 long \u0111en ph\u1eb3ng A4, \u0111\u00e3 th\u1ee5 \u0111\u1ed9ng h\u00f3a, \u0111\u00f3ng g\u00f3i th\u00f9ng carton, k\u00e8m ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u v\u00e0 b\u00e1o c\u00e1o ki\u1ec3m tra k\u00edch th\u01b0\u1edbc<\/a> .\u201d M\u1ed9t c\u00e2u \u0111\u00f3 cung c\u1ea5p \u0111\u1ee7 th\u00f4ng tin \u0111\u1ec3 nh\u00e0 cung c\u1ea5p b\u00e1o gi\u00e1 ch\u00ednh x\u00e1c. N\u00f3 c\u0169ng b\u1ea3o v\u1ec7 ng\u01b0\u1eddi mua kh\u1ecfi vi\u1ec7c nh\u1eadn \u0111\u01b0\u1ee3c l\u00f4 h\u00e0ng l\u1eabn l\u1ed9n c\u00e1c ph\u1ee5 ki\u1ec7n inox nh\u00ecn gi\u1ed1ng nhau nh\u01b0ng kh\u00e1c bi\u1ec7t v\u1ec1 k\u1ef9 thu\u1eadt.<\/p>\r\n

\u0110\u1ed1i v\u1edbi d\u1ecbch v\u1ee5 nhi\u1ec7t \u0111\u1ed9 cao, b\u00ecnh \u00e1p l\u1ef1c, m\u1eb7t b\u00edch, van v\u00e0 m\u1ee5c \u0111\u00edch \u0111\u1eb7c bi\u1ec7t, ng\u01b0\u1eddi mua c\u0169ng c\u00f3 th\u1ec3 g\u1eb7p c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt bu l\u00f4ng ASTM. ASTM A193\/A193M<\/a>, ch\u1eb3ng h\u1ea1n, bao g\u1ed3m bu l\u00f4ng th\u00e9p h\u1ee3p kim v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 cho c\u00e1c \u1ee9ng d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 cao, \u00e1p su\u1ea5t cao v\u00e0 m\u1ee5c \u0111\u00edch \u0111\u1eb7c bi\u1ec7t. \u0110i\u1ec1u \u0111\u00f3 kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 m\u1ecdi \u0111\u01a1n h\u00e0ng bu l\u00f4ng \u0111ai \u1ed1c b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u1ec1u c\u1ea7n ASTM A193. N\u00f3 c\u00f3 ngh\u0129a l\u00e0 ng\u01b0\u1eddi mua n\u00ean kh\u1edbp ti\u00eau chu\u1ea9n v\u1edbi \u1ee9ng d\u1ee5ng thay v\u00ec tr\u1ed9n l\u1eabn c\u00e1c y\u00eau c\u1ea7u ISO, DIN, ASTM v\u00e0 b\u1ea3n v\u1ebd m\u1ed9t c\u00e1ch t\u00f9y ti\u1ec7n.<\/p>\r\n

C\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 ph\u1ed5 bi\u1ebfn cho bu l\u00f4ng v\u00e0 \u0111ai \u1ed1c<\/h2>\r\n

Hai lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 ph\u1ed5 bi\u1ebfn nh\u1ea5t cho b\u1ed9 bu l\u00f4ng v\u00e0 \u0111ai \u1ed1c c\u00f4ng nghi\u1ec7p l\u00e0 304 v\u00e0 316. C\u1ea3 hai \u0111\u1ec1u l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 austenitic, nh\u01b0ng ch\u00fang kh\u00f4ng gi\u1ed1ng nhau v\u1ec1 hi\u1ec7u su\u1ea5t ch\u1ed1ng \u0103n m\u00f2n.<\/p>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
C\u1ea5p \u0111\u1ed9<\/th>\r\n\u0110\u00e1nh d\u1ea5u bu l\u00f4ng \u0111i\u1ec3n h\u00ecnh<\/th>\r\n\u1ee8ng d\u1ee5ng T\u1ed1t Nh\u1ea5t<\/th>\r\n\u01afu \u0111i\u1ec3m ch\u00ednh<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
Th\u00e9p kh\u00f4ng g\u1ec9 304<\/td>\r\nA2<\/td>\r\nThi\u1ebft b\u1ecb trong nh\u00e0, s\u1eed d\u1ee5ng ngo\u00e0i tr\u1eddi chung, v\u1ecf m\u00e1y, gi\u00e1 \u0111\u1ee1, l\u1eafp r\u00e1p c\u1ea5u tr\u00fac nh\u1eb9<\/td>\r\nKh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed<\/td>\r\n<\/tr>\r\n
Th\u00e9p kh\u00f4ng g\u1ec9 316<\/td>\r\nA4<\/td>\r\nBi\u1ec3n, ven bi\u1ec3n, ti\u1ebfp x\u00fac h\u00f3a ch\u1ea5t, khu v\u1ef1c r\u1eeda, thi\u1ebft b\u1ecb th\u1ef1c ph\u1ea9m, c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng ngo\u00e0i tr\u1eddi<\/td>\r\nKh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i clorua v\u00e0 \u0103n m\u00f2n pitting t\u1ed1t h\u01a1n<\/td>\r\n<\/tr>\r\n
Th\u00e9p kh\u00f4ng g\u1ec9 410<\/td>\r\nTh\u01b0\u1eddng c\u00f3 \u0111\u00e1nh d\u1ea5u martensitic<\/td>\r\nV\u00edt t\u1ef1 khoan v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n \u0111\u1ed9 c\u1ee9ng cao h\u01a1n<\/td>\r\n\u0110\u1ed9 c\u1ee9ng cao h\u01a1n, nh\u01b0ng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n th\u1ea5p h\u01a1n so v\u1edbi 304 ho\u1eb7c 316<\/td>\r\n<\/tr>\r\n
Th\u00e9p kh\u00f4ng g\u1ec9 duplex<\/td>\r\nC\u1ee5 th\u1ec3 cho d\u1ef1 \u00e1n<\/td>\r\nM\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p c\u00f3 \u0111\u1ed9 \u0103n m\u00f2n cao v\u00e0 \u0111\u1ed9 b\u1ec1n cao h\u01a1n<\/td>\r\n\u0110\u1ed9 b\u1ec1n cao h\u01a1n c\u1ed9ng v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng clorua m\u1ea1nh m\u1ebd<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n

\u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft ng\u01b0\u1eddi mua, th\u00e9p kh\u00f4ng g\u1ec9 304 l\u00e0 l\u1ef1a ch\u1ecdn ti\u00eau chu\u1ea9n cho kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n chung. \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng ven bi\u1ec3n, bi\u1ec3n, phun mu\u1ed1i, h\u1ed3 b\u01a1i, h\u00f3a ch\u1ea5t ho\u1eb7c ngo\u00e0i tr\u1eddi l\u00e2u d\u00e0i, th\u00e9p kh\u00f4ng g\u1ec9 316 th\u01b0\u1eddng l\u00e0 l\u1ef1a ch\u1ecdn an to\u00e0n h\u01a1n. Chi ph\u00ed cao h\u01a1n, nh\u01b0ng tu\u1ed5i th\u1ecd c\u00f3 th\u1ec3 t\u1ed1t h\u01a1n nhi\u1ec1u trong m\u00f4i tr\u01b0\u1eddng gi\u00e0u clorua.<\/p>\r\n

B\u1ea3n \u0111\u1ed3 m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n cho 304 v\u00e0 316<\/h2>\r\n

Ch\u1ecdn 304 cho m\u00f4i tr\u01b0\u1eddng ti\u1ebfp x\u00fac s\u1ea1ch v\u00e0 316 khi c\u00f3 clo, mu\u1ed1i, h\u00f3a ch\u1ea5t r\u1eeda ho\u1eb7c kh\u00f4ng kh\u00ed ven bi\u1ec3n l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a m\u00f4i tr\u01b0\u1eddng d\u1ecbch v\u1ee5.<\/strong> Th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ed1ng \u0103n m\u00f2n v\u00ec crom t\u1ea1o ra m\u1ed9t l\u1edbp phim b\u1ec1 m\u1eb7t th\u1ee5 \u0111\u1ed9ng, nh\u01b0ng l\u1edbp phim c\u00f3 th\u1ec3 b\u1ecb h\u01b0 h\u1ea1i b\u1edfi clo, khe h\u1edf, c\u1eb7n b\u00e3 v\u00e0 v\u1ec7 sinh k\u00e9m. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao m\u1ed9t b\u1ed9 bu l\u00f4ng \u0111ai \u1ed1c b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 tr\u00f4ng ho\u00e0n h\u1ea3o trong m\u1ed9t nh\u00e0 m\u00e1y kh\u00f4 nh\u01b0ng l\u1ea1i nhanh ch\u00f3ng b\u1ecb \u1ed1 b\u00ean c\u1ea1nh \u0111\u1ea1i d\u01b0\u01a1ng ho\u1eb7c trong m\u1ed9t nh\u00e0 m\u00e1y th\u1ef1c ph\u1ea9m s\u1eed d\u1ee5ng h\u00f3a ch\u1ea5t t\u1ea9y r\u1eeda m\u1ea1nh.<\/p>\r\n

Hi\u1ec7p h\u1ed9i Th\u00e9p Kh\u00f4ng G\u1ec9 Anh gi\u1ea3i th\u00edch r\u1eb1ng c\u00e1c nguy c\u01a1 \u0103n m\u00f2n \u0111\u00e3 bi\u1ebft th\u01b0\u1eddng y\u00eau c\u1ea7u th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 ch\u1ee9a molypden, v\u00e0 316 l\u00e0 n\u00e2ng c\u1ea5p ph\u1ed5 bi\u1ebfn c\u00f3 ch\u1ee9a molypden t\u1eeb 304 trong nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p. Ghi ch\u00fa c\u1ee7a h\u1ecd v\u1ec1 c\u00e1c c\u01a1 ch\u1ebf \u0103n m\u00f2n c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9<\/a> r\u1ea5t h\u1eefu \u00edch cho ng\u01b0\u1eddi mua v\u00ec ch\u00fang li\u00ean k\u1ebft l\u1ef1a ch\u1ecdn c\u1ea5p \u0111\u1ed9 v\u1edbi c\u00e1c m\u00f4i tr\u01b0\u1eddng th\u1ef1c t\u1ebf thay v\u00ec vi\u1ebft t\u1eaft trong danh m\u1ee5c.<\/p>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
M\u00f4i tr\u01b0\u1eddng<\/th>\r\nM\u1ee9c \u0111\u1ed9 r\u1ee7i ro<\/th>\r\nL\u1ef1a ch\u1ecdn th\u1ef1c t\u1ebf<\/th>\r\nGhi ch\u00fa c\u1ee7a ng\u01b0\u1eddi mua<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
M\u00e1y m\u00f3c trong nh\u00e0 kh\u00f4<\/td>\r\nTh\u1ea5p<\/td>\r\n304 \/ A2<\/td>\r\nTh\u01b0\u1eddng \u0111\u1ee7 n\u1ebfu ngo\u1ea1i h\u00ecnh v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9 l\u00e0 m\u1ee5c ti\u00eau ch\u00ednh<\/td>\r\n<\/tr>\r\n
Ti\u1ebfp x\u00fac v\u1edbi m\u01b0a ngo\u00e0i tr\u1eddi<\/td>\r\nTrung b\u00ecnh<\/td>\r\n304 ho\u1eb7c 316<\/td>\r\nS\u1eed d\u1ee5ng 316 n\u1ebfu \u00f4 nhi\u1ec5m, mu\u1ed1i ch\u1ed1ng \u0111\u00f3ng b\u0103ng, ho\u1eb7c tu\u1ed5i th\u1ecd d\u00e0i quan tr\u1ecdng<\/td>\r\n<\/tr>\r\n
Kh\u00f4ng kh\u00ed ven bi\u1ec3n ho\u1eb7c phun mu\u1ed1i<\/td>\r\nCao<\/td>\r\n316 \/ A4<\/td>\r\n304 c\u00f3 th\u1ec3 b\u1ecb \u1ed1 tr\u00e0 ho\u1eb7c \u0103n m\u00f2n nhanh h\u01a1n mong \u0111\u1ee3i<\/td>\r\n<\/tr>\r\n
R\u1eeda th\u1ef1c ph\u1ea9m<\/td>\r\nTrung b\u00ecnh \u0111\u1ebfn cao<\/td>\r\n304 ho\u1eb7c 316<\/td>\r\nN\u1ed3ng \u0111\u1ed9 h\u00f3a ch\u1ea5t t\u1ea9y r\u1eeda quy\u1ebft \u0111\u1ecbnh c\u1ea5p \u0111\u1ed9 an to\u00e0n h\u01a1n<\/td>\r\n<\/tr>\r\n
B\u1ec3 b\u01a1i ho\u1eb7c d\u1ecbch v\u1ee5 clo h\u00f3a<\/td>\r\nCao<\/td>\r\nH\u1ee3p kim 316 ho\u1eb7c h\u1ee3p kim theo d\u1ef1 \u00e1n<\/td>\r\n\u0102n m\u00f2n khe h\u1edf v\u00e0 \u0103n m\u00f2n do c\u0103ng th\u1eb3ng c\u1ea7n xem x\u00e9t k\u1ef9 thu\u1eadt<\/td>\r\n<\/tr>\r\n
Ng\u00e2m trong m\u00f4i tr\u01b0\u1eddng bi\u1ec3n<\/td>\r\nR\u1ea5t cao<\/td>\r\nH\u1ee3p kim 316, duplex ho\u1eb7c h\u1ee3p kim chuy\u00ean d\u1ee5ng<\/td>\r\nTi\u00eau chu\u1ea9n 304 kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c coi l\u00e0 m\u1eb7c \u0111\u1ecbnh c\u1ea5p \u0111\u1ed9 bi\u1ec3n<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n

M\u1ed9t chi ti\u1ebft th\u1ef1c t\u1ebf h\u1eefu \u00edch: \u0103n m\u00f2n th\u01b0\u1eddng b\u1eaft \u0111\u1ea7u \u1edf nh\u1eefng n\u01a1i m\u00e0 c\u00e1c thanh tra kh\u00f4ng nh\u00ecn v\u00e0o tr\u01b0\u1edbc. \u0110\u1ea7u bu l\u00f4ng l\u1ed9 ra c\u00f3 th\u1ec3 v\u1eabn tr\u00f4ng ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c, trong khi c\u1ea1nh \u0111\u1ec7m, m\u1eb7t \u0111\u1ee1 c\u1ee7a \u0111ai \u1ed1c, ho\u1eb7c khe h\u1edf d\u01b0\u1edbi gi\u00e1 \u0111\u1ee1 \u0111\u00e3 b\u1eaft \u0111\u1ea7u thu th\u1eadp c\u1eb7n chloride. \u0110\u1ed1i v\u1edbi ph\u1ea7n c\u1ee9ng OEM ngo\u00e0i tr\u1eddi, ch\u00fang t\u00f4i th\u00edch \u0111\u00e1nh gi\u00e1 to\u00e0n b\u1ed9 m\u1ed1i n\u1ed1i, kh\u00f4ng ch\u1ec9 l\u00e0 c\u1ea5p \u0111\u1ed9 bu l\u00f4ng. Tho\u00e1t n\u01b0\u1edbc, ti\u1ebfp x\u00fac v\u1edbi \u0111\u1ec7m, \u0111\u1ed9 \u1ea9m b\u1ecb gi\u1eef l\u1ea1i, ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t v\u00e0 kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn \u0111\u1ec3 l\u00e0m s\u1ea1ch c\u00f3 th\u1ec3 thay \u0111\u1ed5i tu\u1ed5i th\u1ecd th\u1ef1c t\u1ebf c\u1ee7a ph\u1ea7n t\u1eed g\u1eafn.<\/p>\r\n

M\u1ed9t \u0111i\u1ec3m d\u1eef li\u1ec7u th\u1ef1c ti\u1ec5n kh\u00e1c \u0111\u1ebfn t\u1eeb h\u01b0\u1edbng d\u1eabn c\u1ee7a BSSA v\u1ec1 \u0103n m\u00f2n khe h\u1edf: c\u00e1c v\u00ed d\u1ee5 v\u1ec1 ng\u01b0\u1ee1ng \u0111\u01b0\u1ee3c b\u00e1o c\u00e1o \u00edt khoan dung h\u01a1n cho 304 so v\u1edbi 316 trong \u0111i\u1ec1u ki\u1ec7n c\u00f3 ch\u1ee9a chloride. Gi\u1edbi h\u1ea1n an to\u00e0n ch\u00ednh x\u00e1c ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec7t \u0111\u1ed9, pH, oxy, c\u1eb7n b\u00e3 v\u00e0 h\u00ecnh h\u1ecdc khe h\u1edf, nh\u01b0ng h\u01b0\u1edbng \u0111i l\u00e0 r\u00f5 r\u00e0ng: 316 mang l\u1ea1i cho ng\u01b0\u1eddi mua m\u1ed9t kho\u1ea3ng c\u00e1ch r\u1ed9ng h\u01a1n khi kh\u00f4ng th\u1ec3 ki\u1ec3m so\u00e1t s\u1ef1 ti\u1ebfp x\u00fac v\u1edbi chloride.<\/p>\r\n

C\u00e1ch k\u1ebft h\u1ee3p bu l\u00f4ng v\u00e0 \u0111ai \u1ed1c b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9<\/h2>\r\n

Bu l\u00f4ng v\u00e0 \u0111ai \u1ed1c ph\u1ea3i ph\u00f9 h\u1ee3p v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh, b\u01b0\u1edbc ren<\/a>, ti\u00eau chu\u1ea9n ren, c\u1ea5p v\u1eadt li\u1ec7u v\u00e0 c\u1ea5p \u0111\u1ed9 b\u1ec1n y\u00eau c\u1ea7u. V\u00ed d\u1ee5, bu l\u00f4ng M8 h\u1ec7 m\u00e9t ph\u1ea3i \u0111i k\u00e8m v\u1edbi \u0111ai \u1ed1c M8 c\u00f9ng b\u01b0\u1edbc ren. \u0110ai \u1ed1c M8 x 1.25 b\u01b0\u1edbc ren th\u00f4 s\u1ebd kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi bu l\u00f4ng M8 x 1.0 b\u01b0\u1edbc ren m\u1ecbn.<\/p>\r\n

Khi k\u1ebft h\u1ee3p c\u00e1c b\u1ed9 bu l\u00f4ng \u0111ai \u1ed1c b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9, h\u00e3y ki\u1ec3m tra nh\u1eefng chi ti\u1ebft n\u00e0y tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng:<\/p>\r\n