{"id":7873,"date":"2024-08-08T06:45:00","date_gmt":"2024-08-07T22:45:00","guid":{"rendered":"https:\/\/app11147.cloudwayssites.com\/?p=7873"},"modified":"2025-05-28T09:30:08","modified_gmt":"2025-05-28T01:30:08","slug":"rust","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/stainless-steel\/rust\/","title":{"rendered":"Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 b\u1ecb g\u1ec9 kh\u00f4ng v\u00e0 b\u1ea1n c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft b\u1eb1ng c\u00e1ch n\u00e0o?"},"content":{"rendered":"<p>Th\u00e9p kh\u00f4ng g\u1ec9 kh\u00f4ng ho\u00e0n to\u00e0n ch\u1ed1ng g\u1ec9. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang t\u00f4i s\u1ebd gi\u1ea3i th\u00edch cho b\u1ea1n khi n\u00e0o th\u00e9p kh\u00f4ng g\u1ec9 s\u1ebd b\u1ecb g\u1ec9, lo\u1ea1i \u0103n m\u00f2n n\u00e0o m\u00e0 n\u00f3 c\u00f3 th\u1ec3 b\u1ecb, c\u00e1c bi\u1ec7n ph\u00e1p hi\u1ec7u qu\u1ea3 \u0111\u1ec3 ng\u0103n ng\u1eeba v\u00e0 gi\u1ea3i quy\u1ebft r\u1ec9 s\u00e9t, v\u00e0 cung c\u1ea5p m\u1ed9t s\u1ed1 m\u1eabu th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao. B\u1eb1ng c\u00e1ch \u0111\u1ecdc b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 trong c\u00e1c t\u00ecnh hu\u1ed1ng \u1ee9ng d\u1ee5ng kh\u00e1c nhau.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 b\u1ecb g\u1ec9 kh\u00f4ng?<\/h2><p>C\u00f3. Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 ph\u1ee5 thu\u1ed9c v\u00e0o l\u1edbp th\u1ee5 \u0111\u1ed9ng crom oxit tr\u00ean b\u1ec1 m\u1eb7t. Tuy nhi\u00ean, trong m\u00f4i tr\u01b0\u1eddng c\u00f3 nhi\u1ec1u mu\u1ed1i, \u1ea9m \u01b0\u1edbt ho\u1eb7c nhi\u1ec7t \u0111\u1ed9 cao, l\u1edbp m\u00e0ng b\u1ea3o v\u1ec7 n\u00e0y c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng, g\u00e2y ra r\u1ec9 s\u00e9t. T\u1ed1c \u0111\u1ed9 r\u1ec9 s\u00e9t b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi m\u00f4i tr\u01b0\u1eddng v\u00e0 lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9, \u0111\u1eb7c bi\u1ec7t l\u00e0 s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a c\u00e1c ion clorua, l\u00e0m t\u0103ng t\u1ed1c \u0111\u1ed9 \u0103n m\u00f2n.<\/p><h2 class=\"wp-block-heading\">T\u1ea1i sao th\u00e9p kh\u00f4ng g\u1ec9 kh\u00f4ng b\u1ecb g\u1ec9?<\/h2><p>Th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ed1ng g\u1ec9 v\u00ec n\u00f3 ch\u1ee9a \u00edt nh\u1ea5t <strong>10.5% crom<\/strong>, t\u1ea1o th\u00e0nh m\u1ed9t l\u1edbp m\u1ecfng b\u1ea3o v\u1ec7 <strong>crom oxit<\/strong> tr\u00ean b\u1ec1 m\u1eb7t. L\u1edbp n\u00e0y ng\u0103n kh\u00f4ng cho oxy v\u00e0 h\u01a1i \u1ea9m ti\u1ebfp x\u00fac v\u1edbi th\u00e9p, ng\u0103n ch\u1eb7n r\u1ec9 s\u00e9t h\u00ecnh th\u00e0nh. Ngay c\u1ea3 khi b\u1ec1 m\u1eb7t b\u1ecb tr\u1ea7y x\u01b0\u1edbc, oxit crom v\u1eabn nhanh ch\u00f3ng ph\u1ee5c h\u1ed3i, duy tr\u00ec kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n.<\/p><h2 class=\"wp-block-heading\">T\u1ea1i sao th\u00e9p kh\u00f4ng g\u1ec9 b\u1ecb g\u1ec9?<\/h2><p>Khi l\u1edbp th\u1ee5 \u0111\u1ed9ng b\u1ecb ph\u00e1 h\u1ee7y v\u00e0 s\u1eaft b\u1ecb l\u1ed9 ra, n\u00f3 ph\u1ea3n \u1ee9ng v\u1edbi n\u01b0\u1edbc v\u00e0 oxy trong kh\u00f4ng kh\u00ed \u0111\u1ec3 t\u1ea1o th\u00e0nh oxit s\u1eaft (g\u1ec9). Nguy\u00ean nh\u00e2n ph\u00e1 h\u1ee7y l\u1edbp th\u1ee5 \u0111\u1ed9ng r\u1ea5t \u0111a d\u1ea1ng, bao g\u1ed3m nh\u01b0ng kh\u00f4ng gi\u1edbi h\u1ea1n \u1edf hao m\u00f2n c\u01a1 h\u1ecdc, \u0103n m\u00f2n h\u00f3a h\u1ecdc v\u00e0 nhi\u1ec5m b\u1ea9n b\u1edfi c\u00e1c h\u1ea1t s\u1eaft.<\/p><h3 class=\"wp-block-heading\">M\u00e0i m\u00f2n c\u01a1 h\u1ecdc<\/h3><p>C\u00e1c v\u1ebft x\u01b0\u1edbc v\u00e0 h\u01b0 h\u1ecfng v\u1eadt l\u00fd tr\u00ean b\u1ec1 m\u1eb7t th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 ph\u00e1 v\u1ee1 l\u1edbp oxit crom b\u1ea3o v\u1ec7. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 x\u1ea3y ra trong qu\u00e1 tr\u00ecnh ch\u1ebf t\u1ea1o, l\u1eafp \u0111\u1eb7t ho\u1eb7c s\u1eed d\u1ee5ng th\u01b0\u1eddng xuy\u00ean. C\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 len th\u00e9p, b\u00e0n ch\u1ea3i s\u1eaft ho\u1eb7c b\u1ea5t k\u1ef3 v\u1eadt li\u1ec7u m\u00e0i m\u00f2n n\u00e0o c\u0169ng c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng l\u1edbp th\u1ee5 \u0111\u1ed9ng, khi\u1ebfn kim lo\u1ea1i b\u00ean d\u01b0\u1edbi ti\u1ebfp x\u00fac v\u1edbi m\u00f4i tr\u01b0\u1eddng.<\/p><h3 class=\"wp-block-heading\">Ti\u1ebfp x\u00fac v\u1edbi h\u00f3a ch\u1ea5t<\/h3><p>M\u1ed9t s\u1ed1 h\u00f3a ch\u1ea5t c\u00f3 th\u1ec3 ph\u1ea3n \u1ee9ng v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9, l\u00e0m h\u1ecfng l\u1edbp b\u1ea3o v\u1ec7 c\u1ee7a th\u00e9p. V\u00ed d\u1ee5, axit v\u00e0 dung d\u1ecbch ki\u1ec1m, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng dung d\u1ecbch c\u00f3 ch\u1ee9a clorua, c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn \u0103n m\u00f2n c\u1ee5c b\u1ed9. C\u00e1c ch\u1ea5t t\u1ea9y r\u1eeda c\u00f3 ch\u1ee9a clorua th\u01b0\u1eddng th\u1ea5y trong nh\u00e0 v\u00e0 c\u00f4ng nghi\u1ec7p \u0111\u1eb7c bi\u1ec7t nguy hi\u1ec3m v\u00ec ch\u00fang c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng th\u00e9p kh\u00f4ng g\u1ec9 b\u1eb1ng c\u00e1ch k\u00edch ho\u1ea1t \u0103n m\u00f2n c\u1ee5c b\u1ed9, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0103n m\u00f2n r\u1ed7 v\u00e0 \u0103n m\u00f2n khe h\u1edf.<\/p><h3 class=\"wp-block-heading\">\u0110i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng<\/h3><p>C\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed9 \u1ea9m cao k\u00e9o d\u00e0i, kh\u00f4ng kh\u00ed m\u1eb7n v\u00e0 nhi\u1ec7t \u0111\u1ed9 thay \u0111\u1ed5i kh\u1eafc nghi\u1ec7t, th\u00e1ch th\u1ee9c l\u1edbp oxit crom tr\u00ean b\u1ec1 m\u1eb7t th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 l\u00e0m gi\u1ea3m hi\u1ec7u qu\u1ea3 b\u1ea3o v\u1ec7 c\u1ee7a n\u00f3. C\u00e1c k\u1ebft c\u1ea5u th\u00e9p kh\u00f4ng g\u1ec9 g\u1ea7n v\u00f9ng ven bi\u1ec3n ho\u1eb7c trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p \u0111\u1eb7c bi\u1ec7t d\u1ec5 b\u1ecb \u1ea3nh h\u01b0\u1edfng do s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a mu\u1ed1i v\u00e0 c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m trong kh\u00f4ng kh\u00ed.<\/p><h3 class=\"wp-block-heading\">\u00d4 nhi\u1ec5m v\u1edbi c\u00e1c h\u1ea1t s\u1eaft<\/h3><p>Trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t, th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 v\u00f4 t\u00ecnh b\u1ecb nhi\u1ec5m b\u1ea9n b\u1edfi c\u00e1c h\u1ea1t s\u1eaft t\u1eeb c\u00e1c c\u00f4ng c\u1ee5, m\u00e1y m\u00f3c ho\u1eb7c c\u00e1c s\u1ea3n ph\u1ea9m th\u00e9p kh\u00e1c. C\u00e1c h\u1ea1t s\u1eaft n\u00e0y s\u1ebd t\u1ef1 oxy h\u00f3a v\u00e0 r\u1ec9 s\u00e9t, \u0111i\u1ec1u n\u00e0y s\u1ebd k\u00edch ho\u1ea1t ph\u1ea3n \u1ee9ng \u0103n m\u00f2n d\u00e2y chuy\u1ec1n tr\u00ean b\u1ec1 m\u1eb7t th\u00e9p kh\u00f4ng g\u1ec9. \u0110i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 chuy\u00ean d\u1ee5ng v\u00e0 kh\u00f4ng gian l\u00e0m vi\u1ec7c s\u1ea1ch s\u1ebd \u0111\u1ec3 ng\u0103n ng\u1eeba nhi\u1ec5m b\u1ea9n ch\u00e9o.<\/p><h3 class=\"wp-block-heading\">B\u1ea3o tr\u00ec kh\u00f4ng \u0111\u00fang c\u00e1ch<\/h3><p>Kh\u00f4ng v\u1ec7 sinh v\u00e0 b\u1ea3o d\u01b0\u1ee1ng th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u00fang c\u00e1ch c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn t\u00edch t\u1ee5 b\u1ee5i b\u1ea9n, d\u1ea7u m\u1ee1 v\u00e0 c\u00e1c ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m kh\u00e1c. Nh\u1eefng ch\u1ea5t n\u00e0y c\u00f3 th\u1ec3 gi\u1eef \u0111\u1ed9 \u1ea9m v\u00e0 th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh r\u1ec9 s\u00e9t. Th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p v\u1ec7 sinh th\u00edch h\u1ee3p \u0111\u1ec3 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a l\u1edbp th\u1ee5 \u0111\u1ed9ng tr\u00ean b\u1ec1 m\u1eb7t th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n l\u00e2u d\u00e0i c\u1ee7a th\u00e9p.<\/p><h3 class=\"wp-block-heading\">X\u1eed l\u00fd nhi\u1ec7t v\u00e0 h\u00e0n<\/h3><p>X\u1eed l\u00fd nhi\u1ec7t v\u00e0 <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/welding\/\">h\u00e0n<\/a> c\u00f3 th\u1ec3 g\u00e2y ra nh\u1eefng thay \u0111\u1ed5i trong c\u1ea5u tr\u00fac vi m\u00f4 c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9, d\u1eabn \u0111\u1ebfn s\u1ef1 h\u00ecnh th\u00e0nh c\u00e1c cacbua crom \u1edf ranh gi\u1edbi h\u1ea1t. Qu\u00e1 tr\u00ecnh n\u00e0y, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 qu\u00e1 tr\u00ecnh nh\u1ea1y c\u1ea3m h\u00f3a, l\u00e0m c\u1ea1n ki\u1ec7t h\u00e0m l\u01b0\u1ee3ng crom trong c\u00e1c khu v\u1ef1c n\u00e0y, khi\u1ebfn ch\u00fang d\u1ec5 b\u1ecb \u0103n m\u00f2n gi\u1eefa c\u00e1c h\u1ea1t h\u01a1n.<\/p><h2 class=\"wp-block-heading\">Qu\u00e1 tr\u00ecnh \u0103n m\u00f2n<\/h2><p><strong>Kh\u1edfi \u0111\u1ea7u:<\/strong> Qu\u00e1 tr\u00ecnh \u0103n m\u00f2n b\u1eaft \u0111\u1ea7u khi l\u1edbp oxit crom b\u1ea3o v\u1ec7 b\u1ecb t\u1ed5n h\u1ea1i.&nbsp;<\/p><p><strong>S\u1ef1 oxy h\u00f3a:<\/strong> Khi s\u1eaft ti\u1ebfp x\u00fac v\u1edbi oxy v\u00e0 \u0111\u1ed9 \u1ea9m, n\u00f3 s\u1ebd tr\u1ea3i qua ph\u1ea3n \u1ee9ng oxy h\u00f3a, t\u1ea1o th\u00e0nh oxit s\u1eaft (g\u1ec9 s\u1eaft). C\u00e1c ion clorua c\u00f3 m\u1eb7t \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t ch\u1ea5t x\u00fac t\u00e1c, l\u00e0m cho qu\u00e1 tr\u00ecnh oxy h\u00f3a di\u1ec5n ra nhanh h\u01a1n.<\/p><p><strong>S\u1ef1 lan truy\u1ec1n:<\/strong> M\u1ed9t khi r\u1ec9 s\u00e9t b\u1eaft \u0111\u1ea7u h\u00ecnh th\u00e0nh, n\u00f3 c\u00f3 th\u1ec3 lan r\u1ed9ng nhanh ch\u00f3ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi c\u00f3 h\u01a1i \u1ea9m v\u00e0 oxy. B\u1ea3n th\u00e2n r\u1ec9 s\u00e9t c\u00f3 th\u1ec3 gi\u1eef l\u1ea1i \u0111\u1ed9 \u1ea9m, \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh \u0103n m\u00f2n v\u00e0 g\u00e2y h\u01b0 h\u1ecfng kim lo\u1ea1i.<\/p><p><strong>S\u1ef1 suy tho\u00e1i v\u1ec1 c\u1ea5u tr\u00fac:<\/strong> Theo th\u1eddi gian, s\u1ef1 t\u00edch t\u1ee5 r\u1ec9 s\u00e9t l\u00e0m y\u1ebfu kim lo\u1ea1i, d\u1eabn \u0111\u1ebfn s\u1ef1 xu\u1ed1ng c\u1ea5p v\u1ec1 m\u1eb7t c\u1ea5u tr\u00fac. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n th\u00e9p kh\u00f4ng g\u1ec9, khi\u1ebfn ch\u00fang b\u1ecb h\u1ecfng ho\u1eb7c \u0111\u00f2i h\u1ecfi ph\u1ea3i s\u1eeda ch\u1eefa v\u00e0 thay th\u1ebf t\u1ed1n k\u00e9m.<\/p><h2 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i \u0103n m\u00f2n c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9<\/h2><h3 class=\"wp-block-heading\">\u0102n m\u00f2n r\u1ed7<\/h3><p>R\u1ed7 l\u00e0 s\u1ef1 \u0103n m\u00f2n c\u1ee5c b\u1ed9, nghi\u00eam tr\u1ecdng c\u1ee7a kim lo\u1ea1i t\u1ea1o th\u00e0nh c\u00e1c l\u1ed7 nh\u1ecf ho\u1eb7c h\u1ed1 th\u01b0\u1eddng th\u1ea5y trong m\u00f4i tr\u01b0\u1eddng ch\u1ee9a clorua nh\u01b0 n\u01b0\u1edbc bi\u1ec3n ho\u1eb7c mu\u1ed1i ch\u1ed1ng \u0111\u00f3ng b\u0103ng. \u0110i\u1ec1u n\u00e0y nguy hi\u1ec3m v\u00ec kh\u00f3 ph\u00e1t hi\u1ec7n v\u00e0 c\u00f3 th\u1ec3 x\u00e2m nh\u1eadp s\u00e2u v\u00e0o kim lo\u1ea1i, tr\u1edf th\u00e0nh ngu\u1ed3n g\u1ed1c c\u1ee7a s\u1ef1 \u0103n m\u00f2n v\u00e0 h\u1ecfng h\u00f3c c\u01a1 h\u1ecdc kh\u00e1c.<\/p><h3 class=\"wp-block-heading\">\u0102n m\u00f2n khe h\u1edf<\/h3><p>\u0102n m\u00f2n khe h\u1edf x\u1ea3y ra trong kh\u00f4ng gian h\u1ea1n ch\u1ebf, ch\u1eb3ng h\u1ea1n nh\u01b0 khe h\u1edf gi\u1eefa c\u00e1c b\u1ed9 ph\u1eadn, d\u01b0\u1edbi mi\u1ebfng \u0111\u1ec7m ho\u1eb7c trong khe h\u1edf kim lo\u1ea1i. M\u00f4i tr\u01b0\u1eddng thi\u1ebfu oxy l\u00e0m tr\u1ea7m tr\u1ecdng th\u00eam t\u00ecnh tr\u1ea1ng \u0103n m\u00f2n v\u00e0 s\u1ef1 h\u00ecnh th\u00e0nh l\u1edbp oxit crom b\u1ea3o v\u1ec7 b\u1ecb ch\u1eb7n l\u1ea1i, cu\u1ed1i c\u00f9ng d\u1eabn \u0111\u1ebfn \u0103n m\u00f2n c\u1ee5c b\u1ed9 v\u00e0 l\u00e0m y\u1ebfu c\u1ea5u tr\u00fac.<\/p><h3 class=\"wp-block-heading\">\u0102n m\u00f2n l\u01b0\u1ee1ng kim (Galvanic)<\/h3><p>Khi th\u00e9p kh\u00f4ng g\u1ec9 ti\u1ebfp x\u00fac v\u1edbi c\u00e1c kim lo\u1ea1i kh\u00e1c trong ch\u1ea5t \u0111i\u1ec7n ph\u00e2n, hi\u1ec7n t\u01b0\u1ee3ng \u0103n m\u00f2n l\u01b0\u1ee1ng kim x\u1ea3y ra; ngh\u0129a l\u00e0, s\u1ef1 ch\u00eanh l\u1ec7ch \u0111i\u1ec7n th\u1ebf khi\u1ebfn kim lo\u1ea1i \u1edf c\u1ef1c d\u01b0\u01a1ng t\u0103ng t\u1ed1c \u0111\u1ed9 \u0103n m\u00f2n, hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y th\u01b0\u1eddng x\u1ea3y ra \u1edf c\u00e1c k\u1ebft h\u1ee3p kim lo\u1ea1i trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt.<\/p><h3 class=\"wp-block-heading\">N\u1ee9t do \u0103n m\u00f2n \u1ee9ng su\u1ea5t (SCC)<\/h3><p>N\u1ee9t \u0103n m\u00f2n \u1ee9ng su\u1ea5t (SCC) l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng n\u1ee9t m\u1edf r\u1ed9ng d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng k\u1ebft h\u1ee3p c\u1ee7a \u0103n m\u00f2n v\u00e0 \u1ee9ng su\u1ea5t. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y th\u01b0\u1eddng x\u1ea3y ra khi th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ecbu \u1ee9ng su\u1ea5t k\u00e9o v\u00e0 m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n c\u1ee5 th\u1ec3 (nh\u01b0 ion clorua), c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn h\u1ecfng h\u00f3c th\u1ea3m kh\u1ed1c m\u00e0 kh\u00f4ng c\u00f3 c\u1ea3nh b\u00e1o.<\/p><h3 class=\"wp-block-heading\">\u0102n m\u00f2n chung (\u0111\u1ed3ng \u0111\u1ec1u)&nbsp;<\/h3><p>\u0102n m\u00f2n \u0111\u1ed3ng \u0111\u1ec1u d\u1eabn \u0111\u1ebfn m\u1ea5t v\u1eadt li\u1ec7u \u0111\u1ed3ng \u0111\u1ec1u tr\u00ean to\u00e0n b\u1ed9 b\u1ec1 m\u1eb7t. C\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n v\u00e0 th\u01b0\u1eddng c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c b\u1eb1ng l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 ho\u1eb7c ch\u1ea5t \u1ee9c ch\u1ebf \u0103n m\u00f2n. Ki\u1ec3u \u0103n m\u00f2n n\u00e0y \u00edt nguy hi\u1ec3m h\u01a1n so v\u1edbi c\u00e1c d\u1ea1ng c\u1ee5c b\u1ed9 v\u00ec d\u1ec5 ph\u00e1t hi\u1ec7n v\u00e0 ki\u1ec3m so\u00e1t h\u01a1n. \u0102n m\u00f2n t\u1ed5ng th\u1ec3 th\u01b0\u1eddng x\u1ea3y ra trong m\u00f4i tr\u01b0\u1eddng m\u00e0 to\u00e0n b\u1ed9 b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac v\u1edbi m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n, d\u1eabn \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 m\u1ea5t v\u1eadt li\u1ec7u \u0111\u1ed3ng \u0111\u1ec1u.<\/p><h3 class=\"wp-block-heading\">T\u1ea5n c\u00f4ng li\u00ean h\u1ea1t v\u00e0 ph\u00e2n r\u00e3 m\u1ed1i h\u00e0n<\/h3><p>\u0102n m\u00f2n li\u00ean h\u1ea1t x\u1ea3y ra \u1edf ranh gi\u1edbi h\u1ea1t c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9, th\u01b0\u1eddng do s\u1ef1 k\u1ebft t\u1ee7a c\u1ee7a crom cacbua trong qu\u00e1 tr\u00ecnh h\u00e0n, d\u1eabn \u0111\u1ebfn h\u00e0m l\u01b0\u1ee3ng crom gi\u1ea3m \u1edf ranh gi\u1edbi h\u1ea1t v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n gi\u1ea3m. \u0102n m\u00f2n h\u00e0n l\u00e0 m\u1ed9t d\u1ea1ng \u0103n m\u00f2n li\u00ean h\u1ea1t \u0111\u1eb7c bi\u1ec7t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn khu v\u1ef1c h\u00e0n v\u00e0 t\u1ea1o ra c\u00e1c \u0111i\u1ec3m y\u1ebfu ti\u1ec1m \u1ea9n trong c\u1ea5u tr\u00fac.<\/p><h2 class=\"wp-block-heading\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ng\u0103n th\u00e9p kh\u00f4ng g\u1ec9 b\u1ecb r\u1ec9 s\u00e9t?<\/h2><p>\u0110\u1ec3 ng\u0103n ng\u1eeba r\u1ec9 s\u00e9t tr\u00ean th\u00e9p kh\u00f4ng g\u1ec9 c\u1ea7n th\u1ef1c hi\u1ec7n m\u1ed9t s\u1ed1 chi\u1ebfn l\u01b0\u1ee3c trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf, ch\u1ebf t\u1ea1o v\u00e0 b\u1ea3o tr\u00ec:<\/p><h3 class=\"wp-block-heading\">1. Thi\u1ebft k\u1ebf<\/h3><p>Thi\u1ebft k\u1ebf ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u s\u1ef1 x\u00e2m nh\u1eadp c\u1ee7a n\u01b0\u1edbc v\u00e0 gi\u1ea3m thi\u1ec3u kh\u1ea3 n\u0103ng h\u01b0 h\u1ecfng. \u0110\u1ea3m b\u1ea3o tho\u00e1t n\u01b0\u1edbc t\u1ed1t v\u00e0 l\u01b0u th\u00f4ng kh\u00f4ng kh\u00ed \u0111\u1ec3 tr\u00e1nh c\u00e1c khe h\u1edf v\u00e0 t\u00edch t\u1ee5 \u0111\u1ed9 \u1ea9m. C\u00e1c thi\u1ebft k\u1ebf tr\u00e1nh c\u00e1c g\u00f3c nh\u1ecdn, khe h\u1edf v\u00e0 khu v\u1ef1c c\u00f3 th\u1ec3 t\u00edch t\u1ee5 n\u01b0\u1edbc s\u1ebd gi\u00fap ng\u0103n ng\u1eeba \u0103n m\u00f2n. Bao g\u1ed3m c\u00e1c l\u1ed7 tho\u00e1t n\u01b0\u1edbc v\u00e0 \u0111\u1ea3m b\u1ea3o b\u1ec1 m\u1eb7t d\u1ec5 v\u1ec7 sinh c\u0169ng c\u00f3 th\u1ec3 gi\u1ea3m nguy c\u01a1 \u0103n m\u00f2n. \u0110\u1ec3 ng\u0103n ng\u1eeba \u0103n m\u00f2n th\u00e9p kh\u00f4ng g\u1ec9, nh\u00e0 m\u00e1y c\u1ee7a ch\u00fang t\u00f4i t\u1ed1i \u01b0u h\u00f3a c\u1ea5u tr\u00fac khi thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1ea3m gi\u1eef \u1ea9m.<\/p><h3 class=\"wp-block-heading\">2. Ch\u1ebf t\u1ea1o<\/h3><p>Trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t, \u0111\u1ea3m b\u1ea3o th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u01b0\u1ee3c c\u00e1ch ly ho\u00e0n to\u00e0n v\u1edbi th\u00e9p cacbon \u0111\u1ec3 ng\u0103n ng\u1eeba m\u1ecdi h\u00ecnh th\u1ee9c ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp, s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 v\u00e0 thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng cho th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 duy tr\u00ec m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c s\u1ea1ch s\u1ebd \u0111\u1ec3 ng\u0103n ng\u1eeba c\u00e1c h\u1ea1t th\u00e9p cacbon l\u00e0m nhi\u1ec5m b\u1ea9n b\u1ec1 m\u1eb7t th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a n\u00f3.<\/p><h3 class=\"wp-block-heading\">3. B\u1ea3o tr\u00ec<\/h3><p>B\u1ea3o d\u01b0\u1ee1ng th\u00e9p kh\u00f4ng g\u1ec9 th\u01b0\u1eddng xuy\u00ean l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft. Vi\u1ec7c v\u1ec7 sinh \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1c c\u00f4ng c\u1ee5 kh\u00f4ng m\u00e0i m\u00f2n v\u00e0 ch\u1ea5t t\u1ea9y r\u1eeda nh\u1eb9, tr\u00e1nh s\u1eed d\u1ee5ng c\u00e1c v\u1eadt li\u1ec7u c\u1ee9ng c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng b\u1ec1 m\u1eb7t. \u0110\u1eb7c bi\u1ec7t ch\u00fa \u00fd ch\u1ecdn ch\u1ea5t t\u1ea9y r\u1eeda kh\u00f4ng ch\u1ee9a clo ho\u1eb7c c\u00f3 h\u00e0m l\u01b0\u1ee3ng clo th\u1ea5p \u0111\u1ec3 gi\u1ea3m nguy c\u01a1 r\u1ed7. Ki\u1ec3m tra b\u1ec1 m\u1eb7t th\u00e9p kh\u00f4ng g\u1ec9 th\u01b0\u1eddng xuy\u00ean \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 x\u1eed l\u00fd k\u1ecbp th\u1eddi m\u1ecdi d\u1ea5u hi\u1ec7u \u0103n m\u00f2n c\u00f3 th\u1ec3 k\u00e9o d\u00e0i hi\u1ec7u qu\u1ea3 tu\u1ed5i th\u1ecd c\u1ee7a th\u00e9p.<\/p><h3 class=\"wp-block-heading\">4. X\u1eed l\u00fd n\u01b0\u1edbc<\/h3><p>S\u1eed d\u1ee5ng n\u01b0\u1edbc \u0111\u00e3 x\u1eed l\u00fd \u0111\u1ec3 gi\u1ea3m c\u1eb7n kho\u00e1ng v\u00e0 nguy c\u01a1 \u0103n m\u00f2n. N\u01b0\u1edbc m\u1ec1m gi\u00fap ng\u0103n ng\u1eeba c\u1eb7n kho\u00e1ng c\u00f3 th\u1ec3 ph\u00e1 v\u1ee1 l\u1edbp th\u1ee5 \u0111\u1ed9ng. H\u1ec7 th\u1ed1ng x\u1eed l\u00fd n\u01b0\u1edbc c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf kho\u00e1ng ch\u1ea5t v\u00e0 t\u1ea1p ch\u1ea5t c\u00f3 h\u1ea1i, \u0111\u1ea3m b\u1ea3o th\u00e9p kh\u00f4ng g\u1ec9 v\u1eabn \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7. \u1ede nh\u1eefng khu v\u1ef1c c\u00f3 n\u01b0\u1edbc c\u1ee9ng, vi\u1ec7c b\u1ea3o d\u01b0\u1ee1ng v\u00e0 v\u1ec7 sinh th\u01b0\u1eddng xuy\u00ean \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ec3 ng\u0103n ng\u1eeba c\u1eb7n kho\u00e1ng t\u00edch t\u1ee5.<\/p><h3 class=\"wp-block-heading\">5. L\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7<\/h3><p>\u0110\u1ec3 t\u0103ng c\u01b0\u1eddng h\u01a1n n\u1eefa kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 t\u00ednh th\u1ea9m m\u1ef9 c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9, c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 ch\u1ea5t l\u01b0\u1ee3ng cao nh\u01b0 polyurethane v\u00e0 nh\u1ef1a epoxy. C\u00e1c l\u1edbp ph\u1ee7 n\u00e0y c\u00f3 th\u1ec3 ng\u0103n ch\u1eb7n hi\u1ec7u qu\u1ea3 c\u00e1c th\u00e0nh ph\u1ea7n \u0103n m\u00f2n trong m\u00f4i tr\u01b0\u1eddng v\u00e0 b\u1ea3o v\u1ec7 l\u1edbp n\u1ec1n th\u00e9p kh\u00f4ng g\u1ec9 kh\u1ecfi b\u1ecb h\u01b0 h\u1ea1i. Ngo\u00e0i ra, h\u00e3y ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 t\u00ednh to\u00e0n v\u1eb9n v\u00e0 \u0111\u1ed9 b\u00e1m d\u00ednh c\u1ee7a l\u1edbp ph\u1ee7 v\u00e0 n\u1ebfu c\u1ea7n, h\u00e3y s\u01a1n ho\u1eb7c ph\u1ee7 l\u1ea1i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 li\u00ean t\u1ee5c c\u1ee7a l\u1edbp ph\u1ee7.<\/p><p>L\u00e0 m\u1ed9t nh\u00e0 s\u1ea3n xu\u1ea5t chuy\u00ean v\u1ec1 c\u00e1c s\u1ea3n ph\u1ea9m th\u00e9p kh\u00f4ng g\u1ec9, nh\u00e0 m\u00e1y c\u1ee7a ch\u00fang t\u00f4i \u0111\u00e3 th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p c\u1ea9n th\u1eadn trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t. Ch\u00fang t\u00f4i ph\u00e2n lo\u1ea1i nghi\u00eam ng\u1eb7t, v\u1eadn h\u00e0nh b\u1eb1ng c\u00e1c c\u00f4ng c\u1ee5 \u0111\u1eb7c bi\u1ec7t v\u00e0 s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 x\u1eed l\u00fd n\u01b0\u1edbc ti\u00ean ti\u1ebfn \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ea3n xu\u1ea5t tinh khi\u1ebft. Th\u01b0\u1eddng xuy\u00ean b\u1ea3o d\u01b0\u1ee1ng l\u1edbp ph\u1ee7 \u0111\u1ec3 b\u1ea3o v\u1ec7 ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1n b\u1ec9.<\/p><p>Ch\u1ecdn ch\u00fang t\u00f4i, b\u1ea1n ch\u1ecdn s\u1ea3n ph\u1ea9m th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ea5t l\u01b0\u1ee3ng cao, d\u1ec5 b\u1ea3o tr\u00ec v\u00e0 b\u1ec1n b\u1ec9!<\/p><h2 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n<\/h2><p>Vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 r\u1ea5t quan tr\u1ecdng, v\u00ec kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/\" target=\"_blank\" rel=\"noreferrer noopener\">c\u1ea5p th\u00e9p kh\u00f4ng g\u1ec9<\/a> \u0111\u01b0\u1ee3c t\u1ea1o ra b\u00ecnh \u0111\u1eb3ng v\u1ec1 m\u1eb7t <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/properties\/corrosion-resistant\/\">kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n<\/a>. Ch\u1ecdn lo\u1ea1i ph\u00f9 h\u1ee3p cho \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n:<\/p><ul class=\"wp-block-list\"><li>C\u1ea5p <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-304\/\">th\u00e9p kh\u00f4ng g\u1ec9 304<\/a>, m\u1ed9t lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i tr\u00ean th\u1ecb tr\u01b0\u1eddng, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi trong nhi\u1ec1u \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau do c\u00f3 t\u1ef7 l\u1ec7 18% Cr so v\u1edbi 8% Ni.<\/li><\/ul><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-316\/\">L\u1edbp 316<\/a>: Ch\u1ee9a 16% Cr, 10% Ni v\u00e0 2-3% Mo. Vi\u1ec7c b\u1ed5 sung molypden gi\u00fap c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i clorua v\u00e0 c\u00e1c ch\u1ea5t \u0103n m\u00f2n kh\u00e1c, khi\u1ebfn n\u00f3 ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng trong c\u00f4ng nghi\u1ec7p v\u00e0 h\u00e0ng h\u1ea3i.<\/li><\/ul><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/317-317l\/\">L\u1edbp 317<\/a>: T\u01b0\u01a1ng t\u1ef1 nh\u01b0 316 nh\u01b0ng c\u00f3 h\u00e0m l\u01b0\u1ee3ng Mo cao h\u01a1n \u0111\u1ec3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i s\u1ef1 t\u1ea5n c\u00f4ng c\u1ee7a h\u00f3a ch\u1ea5t t\u1ed1t h\u01a1n.<\/li><\/ul><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-321\/\">L\u1edbp 321<\/a>: Ch\u1ee9a Ti, c\u00f3 t\u00e1c d\u1ee5ng \u1ed5n \u0111\u1ecbnh c\u1ea5u tr\u00fac, ch\u1ed1ng l\u1ea1i s\u1ef1 h\u00ecnh th\u00e0nh crom cacbua, do \u0111\u00f3 l\u00fd t\u01b0\u1edfng cho m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao.<\/li><\/ul><ul class=\"wp-block-list\"><li>2205 Duplex: Ch\u1ee9a 22% Cr, 5% Ni v\u00e0 3% Mo, gi\u00fap t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i t\u00ecnh tr\u1ea1ng n\u1ee9t do \u0103n m\u00f2n \u1ee9ng su\u1ea5t, r\u1ed7 v\u00e0 th\u1eadm ch\u00ed l\u00e0 \u0103n m\u00f2n khe h\u1edf.<\/li><\/ul><ul class=\"wp-block-list\"><li>2507 Super Duplex: Ch\u1ee9a 25%Cr, 7%Ni v\u00e0 4%Mo, mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng c\u00f3 t\u00ednh \u0103n m\u00f2n cao nh\u01b0 ngo\u00e0i kh\u01a1i v\u00e0 x\u1eed l\u00fd h\u00f3a ch\u1ea5t.<\/li><\/ul><ul class=\"wp-block-list\"><li>C\u1ea5p 439: Kh\u00f4ng ch\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng n\u1ee9t do \u0103n m\u00f2n \u1ee9ng su\u1ea5t t\u1ed1t h\u01a1n m\u00e0 c\u00f2n c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 kh\u1ea3 n\u0103ng h\u00e0n v\u00e0 m\u1edf r\u1ed9ng ph\u1ea1m vi \u1ee9ng d\u1ee5ng.<\/li><\/ul><ul class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-630\/\">L\u1edbp 17-4 PH<\/a>: Ch\u1ee9a 17% Cr, 4% Ni v\u00e0 Cu, mang l\u1ea1i s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa \u0111\u1ed9 b\u1ec1n cao, \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n. \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, h\u00f3a ch\u1ea5t v\u00e0 h\u00f3a d\u1ea7u.<\/li><\/ul><h2 class=\"wp-block-heading\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 lo\u1ea1i b\u1ecf r\u1ec9 s\u00e9t tr\u00ean th\u00e9p kh\u00f4ng g\u1ec9?<\/h2><p>Khi b\u1ea1n th\u1ea5y r\u1ec9 s\u00e9t tr\u00ean th\u00e9p kh\u00f4ng g\u1ec9, b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ch\u1ea5t t\u1ea9y r\u1ec9 s\u00e9t chuy\u00ean d\u1ee5ng \u0111\u1ec3 lo\u1ea1i b\u1ecf r\u1ec9 s\u00e9t.<\/p><h3 class=\"wp-block-heading\">T\u1ef1 l\u00e0m\u2014\u2014Chanh, Chanh xanh v\u00e0 Mu\u1ed1i<\/h3><p>Tr\u1ed9n n\u01b0\u1edbc c\u1ed1t chanh\/chanh xanh v\u00e0 mu\u1ed1i \u0111\u1ec3 t\u1ea1o th\u00e0nh h\u1ed7n h\u1ee3p t\u1ea9y r\u1eeda. Axit citric ph\u00e1 v\u1ee1 r\u1ec9 s\u00e9t v\u00e0 mu\u1ed1i gi\u00fap lo\u1ea1i b\u1ecf ch\u1ea5t m\u00e0i m\u00f2n. N\u00f3 c\u00f3 t\u00e1c d\u1ee5ng t\u1ed1t tr\u00ean c\u00e1c v\u1ebft r\u1ec9 s\u00e9t nh\u1ecf v\u00e0 ph\u00f9 h\u1ee3p \u0111\u1ec3 b\u1ea3o d\u01b0\u1ee1ng h\u00e0ng ng\u00e0y.<\/p><h3 class=\"wp-block-heading\">Ch\u1ea5t t\u1ea9y r\u1ec9 s\u00e9t mua \u1edf c\u1eeda h\u00e0ng<\/h3><p>\u0110\u1ed1i v\u1edbi r\u1ec9 s\u00e9t nghi\u00eam tr\u1ecdng, s\u1eed d\u1ee5ng ch\u1ea5t t\u1ea9y r\u1ec9 s\u00e9t chuy\u00ean nghi\u1ec7p c\u00f3 b\u00e1n tr\u00ean th\u1ecb tr\u01b0\u1eddng l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7u qu\u1ea3. C\u00e1c s\u1ea3n ph\u1ea9m n\u00e0y c\u00f3 th\u1ec3 h\u00f2a tan r\u1ec9 s\u00e9t c\u1ee9ng \u0111\u1ea7u v\u00e0 ph\u1ee5c h\u1ed3i \u0111\u1ed9 s\u00e1ng b\u00f3ng c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9. Khi s\u1eed d\u1ee5ng, h\u00e3y tu\u00e2n th\u1ee7 c\u1ea9n th\u1eadn h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 v\u00e0 an to\u00e0n. Cung c\u1ea5p th\u00f4ng gi\u00f3 khi v\u1eadn h\u00e0nh \u0111\u1ec3 b\u1ea3o v\u1ec7 s\u1ee9c kh\u1ecfe c\u00e1 nh\u00e2n c\u1ee7a b\u1ea1n.<\/p><h3 class=\"wp-block-heading\">Ph\u01b0\u01a1ng ph\u00e1p c\u00f4ng nghi\u1ec7p<\/h3><p>C\u00e1c v\u1eadt d\u1ee5ng l\u1edbn ho\u1eb7c b\u1ecb r\u1ec9 s\u00e9t nghi\u00eam tr\u1ecdng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p phun c\u00e1t ho\u1eb7c ng\u00e2m h\u00f3a ch\u1ea5t. Phun c\u00e1t s\u1eed d\u1ee5ng ch\u1ea5t m\u00e0i m\u00f2n t\u1ed1c \u0111\u1ed9 cao \u0111\u1ec3 lo\u1ea1i b\u1ecf r\u1ec9 s\u00e9t, trong khi ng\u00e2m h\u00f3a ch\u1ea5t s\u1ebd nh\u00fang v\u1eadt d\u1ee5ng v\u00e0o dung d\u1ecbch h\u00f2a tan r\u1ec9 s\u00e9t. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p.<\/p><p>B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 mu\u1ed1n bi\u1ebft:<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 b\u1ecb g\u1ec9 khi \u1edf ngo\u00e0i tr\u1eddi kh\u00f4ng?<\/h2><p>N\u00f3i chung l\u00e0 kh\u00f4ng. Th\u00e9p kh\u00f4ng g\u1ec9 s\u1ebd ch\u1ed1ng g\u1ec9 \u1edf ngo\u00e0i tr\u1eddi nh\u1edd l\u1edbp oxit crom b\u1ea3o v\u1ec7, nh\u01b0ng m\u1ed9t s\u1ed1 lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 v\u1eabn c\u00f3 th\u1ec3 b\u1ecb \u0103n m\u00f2n theo th\u1eddi gian trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t (nh\u01b0 v\u00f9ng ven bi\u1ec3n c\u00f3 nhi\u1ec1u n\u01b0\u1edbc m\u1eb7n).<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 b\u1ecb g\u1ec9 trong n\u01b0\u1edbc kh\u00f4ng?<\/h2><p>C\u00f3 th\u1ec3. Th\u00e9p kh\u00f4ng g\u1ec9 th\u01b0\u1eddng kh\u00f4ng b\u1ecb r\u1ec9 trong n\u01b0\u1edbc ng\u1ecdt do c\u00f3 ch\u1ee9a crom. Tuy nhi\u00ean, ti\u1ebfp x\u00fac l\u00e2u v\u1edbi n\u01b0\u1edbc (\u0111\u1eb7c bi\u1ec7t l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 kh\u00f4ng cao c\u1ea5p) c\u00f3 th\u1ec3 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng \u0103n m\u00f2n b\u1ec1 m\u1eb7t.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 b\u1ecb g\u1ec9 trong n\u01b0\u1edbc mu\u1ed1i kh\u00f4ng?<\/h2><p>C\u00f3, th\u00e9p kh\u00f4ng g\u1ec9 s\u1ebd b\u1ecb r\u1ec9 s\u00e9t theo th\u1eddi gian trong n\u01b0\u1edbc mu\u1ed1i, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 c\u1ea5p th\u1ea5p nh\u01b0 304. \u0110\u1ec3 ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n, n\u00ean s\u1eed d\u1ee5ng th\u00e9p kh\u00f4ng g\u1ec9 316, c\u00f3 ch\u1ee9a molypden.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p ph\u1eabu thu\u1eadt c\u00f3 b\u1ecb g\u1ec9 kh\u00f4ng?<\/h2><p>N\u00f3i chung l\u00e0 kh\u00f4ng. <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/medical-grade\/\">Th\u00e9p ph\u1eabu thu\u1eadt<\/a> l\u00e0 m\u1ed9t lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao, th\u01b0\u1eddng kh\u00f4ng b\u1ecb g\u1ec9 ngay c\u1ea3 trong ch\u1ea5t l\u1ecfng c\u01a1 th\u1ec3. N\u00f3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t v\u00e0 ph\u00f9 h\u1ee3p \u0111\u1ec3 s\u1eed d\u1ee5ng trong c\u1ea5y gh\u00e9p v\u00e0 d\u1ee5ng c\u1ee5 ph\u1eabu thu\u1eadt.<\/p><h2 class=\"wp-block-heading\">Nh\u1eadn \u0111\u01b0\u1ee3c th\u00e9p kh\u00f4ng g\u1ec9 nh\u01b0 mong mu\u1ed1n!<\/h2><p>B\u00e2y gi\u1edd b\u1ea1n \u0111\u00e3 bi\u1ebft l\u00fd do t\u1ea1i sao th\u00e9p kh\u00f4ng g\u1ec9 b\u1ecb r\u1ec9 s\u00e9t, c\u00e1c lo\u1ea1i r\u1ec9 s\u00e9t v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p hi\u1ec7u qu\u1ea3 \u0111\u1ec3 ng\u0103n ng\u1eeba v\u00e0 gi\u1ea3i quy\u1ebft r\u1ec9 s\u00e9t. N\u1ebfu b\u1ea1n mu\u1ed1n mua th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ed1ng \u0103n m\u00f2n ho\u1eb7c b\u1ed1i r\u1ed1i v\u1ec1 vi\u1ec7c l\u1ef1a ch\u1ecdn c\u1ea5p \u0111\u1ed9, vui l\u00f2ng <a href=\"https:\/\/steelprogroup.com\/vi\/contact-us\/\" target=\"_blank\" data-type=\"page\" data-id=\"177\" rel=\"noreferrer noopener\">li\u00ean h\u1ec7 v\u1edbi c\u00e1c chuy\u00ean gia kim lo\u1ea1i c\u1ee7a ch\u00fang t\u00f4i<\/a>. L\u00e0 nh\u00e0 cung c\u1ea5p th\u00e9p chuy\u00ean nghi\u1ec7p, ch\u00fang t\u00f4i r\u1ea5t vui khi \u0111\u01b0\u1ee3c gi\u00fap b\u1ea1n l\u1ef1a ch\u1ecdn s\u1ea3n ph\u1ea9m ph\u00f9 h\u1ee3p nh\u1ea5t!<\/p>","protected":false},"excerpt":{"rendered":"<p>Th\u00e9p kh\u00f4ng g\u1ec9 kh\u00f4ng ho\u00e0n to\u00e0n ch\u1ed1ng g\u1ec9. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang t\u00f4i s\u1ebd gi\u1ea3i th\u00edch cho b\u1ea1n khi n\u00e0o th\u00e9p kh\u00f4ng g\u1ec9 s\u1ebd b\u1ecb g\u1ec9, nh\u1eefng g\u00ec [\u2026]<\/p>","protected":false},"author":1,"featured_media":7846,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","rank_math_lock_modified_date":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[4202,112],"tags":[],"class_list":["post-7873","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-properties","category-stainless-steel"],"acf":[],"_links":{"self":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/7873","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/comments?post=7873"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/7873\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/7846"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=7873"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=7873"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=7873"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}