{"id":5991,"date":"2026-05-27T10:22:30","date_gmt":"2026-05-27T02:22:30","guid":{"rendered":"https:\/\/xzfastener.com\/?p=5991"},"modified":"2026-05-21T10:30:29","modified_gmt":"2026-05-21T02:30:29","slug":"high-temperature-resistant-fasteners-material-selection-how-to-choose-the-right-material-for-demanding-applications","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/vi\/high-temperature-resistant-fasteners-material-selection-how-to-choose-the-right-material-for-demanding-applications\/","title":{"rendered":"L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u \u1ed1c v\u00edt ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao: C\u00e1ch ch\u1ecdn v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1eaft khe"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Introduction<\/h2>\n\n\n\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn \u1ed1c v\u00edt ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao kh\u00f4ng ch\u1ec9 l\u00e0 ch\u1ecdn bu l\u00f4ng ho\u1eb7c \u0111ai \u1ed1c \u201cch\u1ecbu nhi\u1ec7t\u201d. Trong s\u1eed d\u1ee5ng c\u00f4ng nghi\u1ec7p th\u1ef1c t\u1ebf, chi ti\u1ebft si\u1ebft ch\u1eb7t ph\u1ea3i gi\u1eef \u0111\u1ee7 \u0111\u1ed9 b\u1ec1n, ch\u1ed1ng l\u1ea1i qu\u00e1 tr\u00ecnh oxy h\u00f3a ho\u1eb7c \u0103n m\u00f2n, ki\u1ec3m so\u00e1t t\u00ecnh tr\u1ea1ng k\u1eb9t ren v\u00e0 duy tr\u00ec t\u1ea3i tr\u01b0\u1edbc c\u1ee7a kh\u1edbp sau khi gia nhi\u1ec7t v\u00e0 l\u00e0m m\u00e1t nhi\u1ec1u l\u1ea7n.<\/p>\n\n\n\n<p>H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch c\u00e1ch ch\u1ecdn v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p cho bu l\u00f4ng, \u0111ai \u1ed1c, \u0111inh t\u00e1n v\u00e0 v\u00f2ng \u0111\u1ec7m \u1edf nhi\u1ec7t \u0111\u1ed9 cao d\u1ef1a tr\u00ean nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c, t\u1ea3i tr\u1ecdng, m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n, ti\u00eau chu\u1ea9n ng\u00e0nh v\u00e0 chi ph\u00ed. N\u00f3 \u0111\u01b0\u1ee3c vi\u1ebft cho ng\u01b0\u1eddi mua, nh\u00e0 ph\u00e2n ph\u1ed1i, nh\u00e0 th\u1ea7u v\u00e0 k\u1ef9 s\u01b0 c\u1ea7n l\u1eddi khuy\u00ean l\u1ef1a ch\u1ecdn th\u1ef1c t\u1ebf tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">N\u1ed9i dung ch\u00ednh<\/h2>\n\n\n\n<h2 class=\"wp-block-heading\">Ch\u1ed1t ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p>\u1ed0c v\u00edt ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao l\u00e0 bu l\u00f4ng, \u1ed1c v\u00edt, \u0111inh t\u00e1n, \u0111ai \u1ed1c v\u00e0 v\u00f2ng \u0111\u1ec7m \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c \u1ee9ng d\u1ee5ng m\u00e0 th\u00e9p cacbon th\u00f4ng th\u01b0\u1eddng ho\u1eb7c th\u00e9p kh\u00f4ng g\u1ec9 ti\u00eau chu\u1ea9n c\u00f3 th\u1ec3 m\u1ea5t \u0111\u1ed9 b\u1ec1n, oxy h\u00f3a, gi\u00e3n ho\u1eb7c gi\u1eef nhi\u1ec7t.<\/p>\n\n\n\n<p>Trong d\u1ecbch v\u1ee5 nhi\u1ec7t \u0111\u1ed9 cao, r\u1ee7i ro ch\u00ednh kh\u00f4ng ch\u1ec9 l\u00e0 tan ch\u1ea3y. R\u1ea5t l\u00e2u tr\u01b0\u1edbc khi kim lo\u1ea1i tan ch\u1ea3y, n\u00f3 c\u00f3 th\u1ec3 \u0111\u00e3 b\u1ecb:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u1ea5t \u0111\u1ed9 b\u1ec1n k\u00e9o<\/li>\n\n\n\n<li>Leo d\u01b0\u1edbi t\u1ea3i li\u00ean t\u1ee5c<\/li>\n\n\n\n<li>Th\u01b0 gi\u00e3n \u1ee9ng su\u1ea5t v\u00e0 m\u1ea5t l\u1ef1c k\u1eb9p<\/li>\n\n\n\n<li>Qu\u00e1 tr\u00ecnh oxy h\u00f3a ho\u1eb7c co gi\u00e3n<\/li>\n\n\n\n<li>S\u1ef1 t\u1eafc ngh\u1ebdn c\u1ee7a lu\u1ed3ng trong qu\u00e1 tr\u00ecnh c\u00e0i \u0111\u1eb7t ho\u1eb7c g\u1ee1 b\u1ecf<\/li>\n\n\n\n<li>\u0102n m\u00f2n do h\u01a1i n\u01b0\u1edbc, h\u00f3a ch\u1ea5t, kh\u00ed th\u1ea3i, mu\u1ed1i ho\u1eb7c m\u00f4i tr\u01b0\u1eddng x\u1eed l\u00fd<\/li>\n\n\n\n<li>M\u1ec7t m\u1ecfi do lu\u00e2n chuy\u1ec3n nhi\u1ec7t<\/li>\n<\/ul>\n\n\n\n<p>V\u00ec l\u00fd do n\u00e0y, vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u chi ti\u1ebft si\u1ebft ch\u1eb7t nhi\u1ec7t \u0111\u1ed9 cao ph\u1ea3i xem x\u00e9t c\u1ea3 hai y\u1ebfu t\u1ed1: <strong>kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c th\u1ef1c t\u1ebf<\/strong>.<\/p>\n\n\n\n<p>ASTM A193\/A193M bao g\u1ed3m c\u00e1c v\u1eadt li\u1ec7u b\u1eaft v\u00edt b\u1eb1ng th\u00e9p h\u1ee3p kim v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 cho b\u00ecnh \u00e1p l\u1ef1c, van, m\u1eb7t b\u00edch v\u00e0 ph\u1ee5 ki\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong d\u1ecbch v\u1ee5 nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c \u00e1p su\u1ea5t cao. ISO 3506-5 c\u0169ng bao g\u1ed3m c\u00e1c \u1ed1c v\u00edt b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 h\u1ee3p kim niken \u0111\u1eb7c bi\u1ec7t d\u00e0nh cho c\u00e1c \u1ee9ng d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 cao l\u00ean \u0111\u1ebfn 800\u00b0C.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea1i sao vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u l\u1ea1i quan tr\u1ecdng h\u01a1n \u1edf nhi\u1ec7t \u0111\u1ed9 cao<\/h2>\n\n\n\n<p>\u1ede nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng, nhi\u1ec1u \u1ed1c v\u00edt c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 b\u1ec1n c\u01a1 b\u1ea3n. \u1ede nhi\u1ec7t \u0111\u1ed9 cao, t\u00ecnh h\u00ecnh thay \u0111\u1ed5i. M\u1ed9t v\u1eadt li\u1ec7u ho\u1ea1t \u0111\u1ed9ng t\u1ed1t \u1edf 20\u00b0C c\u00f3 th\u1ec3 tr\u1edf n\u00ean kh\u00f4ng ph\u00f9 h\u1ee3p \u1edf 400\u00b0C, 600\u00b0C, ho\u1eb7c cao h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Duy tr\u00ec s\u1ee9c m\u1ea1nh<\/h3>\n\n\n\n<p>M\u1ed9t s\u1ed1 v\u1eadt li\u1ec7u m\u1ea5t \u0111\u1ed9 b\u1ec1n nhanh ch\u00f3ng khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng. \u0110\u1ed1i v\u1edbi c\u00e1c m\u1ed1i n\u1ed1i ch\u1ecbu t\u1ea3i cao, chi ti\u1ebft si\u1ebft ch\u1eb7t ph\u1ea3i duy tr\u00ec \u0111\u1ee7 gi\u1edbi h\u1ea1n ch\u1ea3y v\u00e0 \u0111\u1ed9 b\u1ec1n k\u00e9o \u1edf nhi\u1ec7t \u0111\u1ed9 s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf, kh\u00f4ng ch\u1ec9 \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Kh\u1ea3 n\u0103ng ch\u1ed1ng leo<\/h3>\n\n\n\n<p>Leo c\u00f3 ngh\u0129a l\u00e0 bi\u1ebfn d\u1ea1ng ch\u1eadm d\u01b0\u1edbi t\u1ea3i tr\u1ecdng kh\u00f4ng \u0111\u1ed5i \u1edf nhi\u1ec7t \u0111\u1ed9 cao. Trong m\u1eb7t b\u00edch, b\u00ecnh \u00e1p l\u1ef1c, tua bin, thi\u1ebft b\u1ecb l\u00f2 v\u00e0 h\u1ec7 th\u1ed1ng x\u1ea3, t\u1eeb bi\u1ebfn c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m t\u1ea3i tr\u01b0\u1edbc v\u00e0 d\u1eabn \u0111\u1ebfn r\u00f2 r\u1ec9 ho\u1eb7c h\u1ecfng kh\u1edbp.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ed1ng oxy h\u00f3a<\/h3>\n\n\n\n<p>\u1ede nhi\u1ec7t \u0111\u1ed9 cao, b\u1ec1 m\u1eb7t th\u00e9p c\u00f3 th\u1ec3 h\u00ecnh th\u00e0nh c\u1eb7n. Qu\u00e1 tr\u00ecnh oxy h\u00f3a nghi\u00eam tr\u1ecdng c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ren, l\u00e0m y\u1ebfu chi ti\u1ebft si\u1ebft ch\u1eb7t v\u00e0 g\u00e2y kh\u00f3 kh\u0103n cho vi\u1ec7c th\u00e1o g\u1ee1.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch gi\u00e3n n\u1edf nhi\u1ec7t<\/h3>\n\n\n\n<p>N\u1ebfu chi ti\u1ebft si\u1ebft ch\u1eb7t v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i gi\u00e3n n\u1edf v\u1edbi t\u1ed1c \u0111\u1ed9 r\u1ea5t kh\u00e1c nhau th\u00ec m\u1ed1i n\u1ed1i c\u00f3 th\u1ec3 b\u1ecb l\u1ecfng, qu\u00e1 t\u1ea3i ho\u1eb7c b\u1ecb bi\u1ebfn d\u1ea1ng trong c\u00e1c chu k\u1ef3 gia nhi\u1ec7t v\u00e0 l\u00e0m m\u00e1t. ASTM A453\/A453M \u0111\u1eb7c bi\u1ec7t li\u00ean quan \u0111\u1ebfn v\u1eadt li\u1ec7u bu l\u00f4ng nhi\u1ec7t \u0111\u1ed9 cao c\u00f3 h\u1ec7 s\u1ed1 gi\u00e3n n\u1edf t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 austenit.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0102n m\u00f2n \u1edf nhi\u1ec7t \u0111\u1ed9<\/h3>\n\n\n\n<p>Nhi\u1ec7t \u0111\u1ed9 cao c\u1ed9ng v\u1edbi vi\u1ec7c ti\u1ebfp x\u00fac v\u1edbi h\u00f3a ch\u1ea5t th\u01b0\u1eddng m\u1ea1nh h\u01a1n nhi\u1ec7t \u0111\u1ed9 \u0111\u01a1n thu\u1ea7n. V\u00ed d\u1ee5, chi ti\u1ebft si\u1ebft ch\u1eb7t trong kh\u00f4ng kh\u00ed n\u00f3ng kh\u00f4 c\u00f3 th\u1ec3 c\u1ea7n kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a, trong khi chi ti\u1ebft si\u1ebft ch\u1eb7t trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd h\u00f3a h\u1ecdc c\u00f3 th\u1ec3 c\u1ea7n c\u1ea3 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 ch\u1ed1ng \u0103n m\u00f2n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">V\u1eadt li\u1ec7u ph\u1ed5 bi\u1ebfn cho \u1ed1c v\u00edt nhi\u1ec7t \u0111\u1ed9 cao<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ed1t th\u00e9p h\u1ee3p kim<\/h3>\n\n\n\n<p>Ch\u1ed1t th\u00e9p h\u1ee3p kim th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi \u0111\u1ed9 b\u1ec1n v\u00e0 ki\u1ec3m so\u00e1t chi ph\u00ed l\u00e0 quan tr\u1ecdng. C\u00e1c c\u1ea5p \u0111\u1ed9 d\u01b0\u1edbi ASTM A193, ch\u1eb3ng h\u1ea1n nh\u01b0 B7 ho\u1eb7c B16, th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong \u0111\u01b0\u1eddng \u1ed1ng \u00e1p l\u1ef1c, van, m\u1eb7t b\u00edch v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng h\u00f3a d\u1ea7u.<\/p>\n\n\n\n<p><strong>Th\u00edch h\u1ee3p cho:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>K\u1ebft n\u1ed1i m\u1eb7t b\u00edch \u00e1p su\u1ea5t cao<\/li>\n\n\n\n<li>Thi\u1ebft b\u1ecb d\u1ea7u kh\u00ed<\/li>\n\n\n\n<li>\u0110\u01b0\u1eddng \u1ed1ng nh\u00e0 m\u00e1y \u0111i\u1ec7n<\/li>\n\n\n\n<li>Van v\u00e0 b\u00ecnh ch\u1ecbu \u00e1p l\u1ef1c<\/li>\n\n\n\n<li>C\u00e1c \u1ee9ng d\u1ee5ng trong \u0111\u00f3 \u0111\u1ed9 b\u1ec1n quan tr\u1ecdng h\u01a1n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n<\/li>\n<\/ul>\n\n\n\n<p><strong>H\u1ea1n ch\u1ebf:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kh\u00f4ng l\u00fd t\u01b0\u1edfng cho m\u00f4i tr\u01b0\u1eddng c\u00f3 t\u00ednh \u0103n m\u00f2n cao tr\u1eeb khi l\u1edbp ph\u1ee7 ho\u1eb7c l\u1edbp b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t ph\u00f9 h\u1ee3p<\/li>\n\n\n\n<li>L\u1edbp ph\u1ee7 c\u00f3 th\u1ec3 c\u00f3 gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9<\/li>\n\n\n\n<li>C\u00f3 th\u1ec3 b\u1ecb oxy h\u00f3a \u1edf nhi\u1ec7t \u0111\u1ed9 cao n\u1ebfu ti\u1ebfp x\u00fac v\u1edbi kh\u00f4ng kh\u00ed ho\u1eb7c m\u00f4i tr\u01b0\u1eddng c\u00f3 t\u00ednh \u0103n m\u00f2n<\/li>\n<\/ul>\n\n\n\n<p>Ch\u1ecdn th\u00e9p h\u1ee3p kim khi \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi t\u00ednh n\u0103ng c\u01a1 h\u1ecdc m\u1ea1nh m\u1ebd v\u00e0 m\u00f4i tr\u01b0\u1eddng kh\u00f4ng b\u1ecb \u0103n m\u00f2n nghi\u00eam tr\u1ecdng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ed1t th\u00e9p kh\u00f4ng g\u1ec9<\/h3>\n\n\n\n<p>\u1ed0c v\u00edt b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i khi c\u1ea7n c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n. C\u00e1c v\u1eadt li\u1ec7u ph\u1ed5 bi\u1ebfn bao g\u1ed3m 304, 316, 321, 347, v\u00e0 c\u00e1c lo\u1ea1i kh\u00f4ng g\u1ec9 ch\u1ecbu nhi\u1ec7t.<\/p>\n\n\n\n<p>Tuy nhi\u00ean, kh\u00f4ng ph\u1ea3i lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 n\u00e0o c\u0169ng ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao. 304 ho\u1eb7c 316 ti\u00eau chu\u1ea9n c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 v\u1eeba ph\u1ea3i, nh\u01b0ng ch\u00fang c\u00f3 th\u1ec3 kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t cho d\u1ecbch v\u1ee5 t\u1ea3i tr\u1ecdng cao trong th\u1eddi gian d\u00e0i \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/p>\n\n\n\n<p>ISO 3506-1 x\u00e1c \u0111\u1ecbnh c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 v\u1eadt l\u00fd c\u1ee7a bu l\u00f4ng, \u1ed1c v\u00edt v\u00e0 \u0111inh t\u00e1n b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ed1ng \u0103n m\u00f2n \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m \u1edf nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng xung quanh, trong khi ISO 3506-5 d\u00e0nh ri\u00eang cho c\u00e1c \u1ed1c v\u00edt \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 s\u1eed d\u1ee5ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/p>\n\n\n\n<p><strong>Th\u00edch h\u1ee3p cho:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nhi\u1ec7t \u0111\u1ed9 v\u1eeba ph\u1ea3i c\u1ed9ng v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n<\/li>\n\n\n\n<li>Thi\u1ebft b\u1ecb ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m<\/li>\n\n\n\n<li>Thi\u1ebft b\u1ecb h\u00f3a ch\u1ea5t c\u00f3 nhi\u1ec7t \u0111\u1ed9 v\u1eeba ph\u1ea3i<\/li>\n\n\n\n<li>H\u1ec7 th\u1ed1ng x\u1ea3 c\u00f3 l\u1ef1a ch\u1ecdn c\u1ea5p ph\u00f9 h\u1ee3p<\/li>\n\n\n\n<li>C\u00e1c b\u1ed9 ph\u1eadn kh\u00f4ng c\u00f3 t\u1eeb t\u00ednh ho\u1eb7c nh\u1ea1y c\u1ea3m v\u1edbi s\u1ef1 \u0103n m\u00f2n<\/li>\n<\/ul>\n\n\n\n<p><strong>H\u1ea1n ch\u1ebf:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Th\u00e9p kh\u00f4ng g\u1ec9 ti\u00eau chu\u1ea9n c\u00f3 th\u1ec3 b\u1ecb m\u1ea5t \u0111\u1ed9 b\u1ec1n \u1edf nhi\u1ec7t \u0111\u1ed9 cao<\/li>\n\n\n\n<li>Th\u00e9p kh\u00f4ng g\u1ec9 Austenitic c\u00f3 th\u1ec3 b\u1ecb v\u00f3n c\u1ee5c trong qu\u00e1 tr\u00ecnh si\u1ebft ch\u1eb7t<\/li>\n\n\n\n<li>M\u1ed9t s\u1ed1 lo\u1ea1i kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n leo t\u1ea3i cao<\/li>\n<\/ul>\n\n\n\n<p>Ch\u1ecdn th\u00e9p kh\u00f4ng g\u1ec9 khi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n l\u00e0 quan tr\u1ecdng, nh\u01b0ng h\u00e3y x\u00e1c nh\u1eadn xem lo\u1ea1i th\u00e9p n\u00e0y c\u00f3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho nhi\u1ec7t \u0111\u1ed9 v\u00e0 t\u1ea3i tr\u1ecdng th\u1ef1c t\u1ebf hay kh\u00f4ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">A286 \/ H\u1ee3p kim 660 Ch\u1ed1t<\/h3>\n\n\n\n<p>A286, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 H\u1ee3p kim 660 ho\u1eb7c UNS S66286, l\u00e0 h\u1ee3p kim s\u1eaft-niken-crom \u0111\u01b0\u1ee3c t\u00f4i c\u1ee9ng k\u1ebft t\u1ee7a \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 b\u1eaft v\u00edt \u1edf nhi\u1ec7t \u0111\u1ed9 cao. ASTM A453 bao g\u1ed3m C\u1ea5p 660 v\u00e0 y\u00eau c\u1ea7u c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc nh\u01b0 ki\u1ec3m tra \u0111\u1ed9 b\u1ec1n k\u00e9o, \u1ee9ng su\u1ea5t \u0111\u1ee9t, v\u00e0 \u0111\u1ed9 c\u1ee9ng \u0111\u1ed1i v\u1edbi c\u00e1c c\u1ea5p \u0111\u01b0\u1ee3c bao ph\u1ee7.<\/p>\n\n\n\n<p><strong>Th\u00edch h\u1ee3p cho:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Linh ki\u1ec7n tuabin<\/li>\n\n\n\n<li>M\u1eb7t b\u00edch nhi\u1ec7t \u0111\u1ed9 cao<\/li>\n\n\n\n<li>H\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 s\u1ea3n xu\u1ea5t \u0111i\u1ec7n<\/li>\n\n\n\n<li>Bu l\u00f4ng b\u00ecnh \u00e1p l\u1ef1c v\u00e0 van<\/li>\n\n\n\n<li>C\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u kh\u1ea3 n\u0103ng duy tr\u00ec \u0111\u1ed9 b\u1ec1n t\u1ed1t h\u01a1n th\u00e9p kh\u00f4ng g\u1ec9 th\u00f4ng th\u01b0\u1eddng<\/li>\n<\/ul>\n\n\n\n<p><strong>H\u1ea1n ch\u1ebf:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chi ph\u00ed cao h\u01a1n th\u00e9p kh\u00f4ng g\u1ec9 ho\u1eb7c th\u00e9p h\u1ee3p kim ti\u00eau chu\u1ea9n<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u x\u1eed l\u00fd nhi\u1ec7t \u0111\u00fang c\u00e1ch<\/li>\n\n\n\n<li>Kh\u00f4ng c\u1ea7n thi\u1ebft cho c\u00e1c \u1ee9ng d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 th\u1ea5p ho\u1eb7c t\u1ea3i th\u1ea5p<\/li>\n<\/ul>\n\n\n\n<p>Ch\u1ecdn A286 \/ H\u1ee3p kim 660 khi chi ti\u1ebft si\u1ebft ch\u1eb7t ph\u1ea3i duy tr\u00ec \u0111\u1ed9 b\u1ec1n d\u01b0\u1edbi nhi\u1ec7t v\u00e0 chu tr\u00ecnh nhi\u1ec7t, \u0111\u1eb7c bi\u1ec7t khi c\u1ea7n c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n gi\u1ed1ng nh\u01b0 th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 \u0111\u1ed9 gi\u00e3n n\u1edf c\u00f3 ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ed1t h\u1ee3p kim niken<\/h3>\n\n\n\n<p>C\u00e1c h\u1ee3p kim niken nh\u01b0 Inconel 625, Inconel 718 v\u00e0 c\u00e1c h\u1ee3p kim hi\u1ec7u su\u1ea5t cao t\u01b0\u01a1ng t\u1ef1 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c m\u00f4i tr\u01b0\u1eddng \u0111\u00f2i h\u1ecfi kh\u1eaft khe h\u01a1n li\u00ean quan \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 cao, \u0103n m\u00f2n, oxy h\u00f3a v\u00e0 \u1ee9ng su\u1ea5t c\u01a1 h\u1ecdc nghi\u00eam tr\u1ecdng.<\/p>\n\n\n\n<p>H\u1ee3p kim 718 \u0111\u01b0\u1ee3c Special Metals m\u00f4 t\u1ea3 l\u00e0 v\u1eadt li\u1ec7u niken-crom c\u00f3 \u0111\u1ed9 b\u1ec1n cao, ch\u1ed1ng \u0103n m\u00f2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng t\u1eeb nhi\u1ec7t \u0111\u1ed9 \u0111\u00f4ng l\u1ea1nh \u0111\u1ebfn 1300\u00b0F, v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng bao g\u1ed3m \u1ed1c v\u00edt v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a tuabin kh\u00ed. INCONEL h\u1ee3p kim 625 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 c\u00f3 \u0111\u1ed9 b\u1ec1n cao, ch\u1ed1ng \u0103n m\u00f2n, ch\u1ed1ng oxy h\u00f3a v\u00e0 nhi\u1ec7t \u0111\u1ed9 s\u1eed d\u1ee5ng l\u00ean t\u1edbi 1800\u00b0F theo b\u1ea3n tin k\u1ef9 thu\u1eadt c\u1ee7a n\u00f3.<\/p>\n\n\n\n<p><strong>Th\u00edch h\u1ee3p cho:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tua bin kh\u00ed<\/li>\n\n\n\n<li>Thi\u1ebft b\u1ecb nhi\u1ec7t \u0111\u1ed9 cao h\u00e0ng h\u1ea3i<\/li>\n\n\n\n<li>X\u1eed l\u00fd h\u00f3a h\u1ecdc<\/li>\n\n\n\n<li>H\u1ec7 th\u1ed1ng x\u1ea3 v\u00e0 \u0111\u1ed1t<\/li>\n\n\n\n<li>Thi\u1ebft b\u1ecb n\u0103ng l\u01b0\u1ee3ng v\u00e0 h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5<\/li>\n\n\n\n<li>M\u00f4i tr\u01b0\u1eddng oxy h\u00f3a ho\u1eb7c clorua nghi\u00eam tr\u1ecdng<\/li>\n<\/ul>\n\n\n\n<p><strong>H\u1ea1n ch\u1ebf:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chi ph\u00ed v\u1eadt li\u1ec7u cao h\u01a1n nhi\u1ec1u<\/li>\n\n\n\n<li>Th\u1eddi gian s\u1ea3n xu\u1ea5t d\u00e0i h\u01a1n<\/li>\n\n\n\n<li>Gia c\u00f4ng kh\u00f3 h\u01a1n th\u00e9p th\u00f4ng th\u01b0\u1eddng<\/li>\n\n\n\n<li>\u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 l\u00e0m t\u0103ng chi ph\u00ed m\u1ed9t c\u00e1ch kh\u00f4ng c\u1ea7n thi\u1ebft<\/li>\n<\/ul>\n\n\n\n<p>Ch\u1ec9 ch\u1ecdn \u1ed1c v\u00edt b\u1eb1ng h\u1ee3p kim niken khi th\u00e9p kh\u00f4ng g\u1ec9 th\u00f4ng th\u01b0\u1eddng, A286 ho\u1eb7c th\u00e9p h\u1ee3p kim kh\u00f4ng th\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 \u0103n m\u00f2n ho\u1eb7c \u0111\u1ed9 r\u00e3o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">So s\u00e1nh v\u1eadt li\u1ec7u cho \u1ed1c v\u00edt nhi\u1ec7t \u0111\u1ed9 cao<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Lo\u1ea1i v\u1eadt li\u1ec7u<\/th><th>S\u1ee9c m\u1ea1nh \u0111i\u1ec3n h\u00ecnh<\/th><th>Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t<\/th><th>Ch\u1ed1ng \u0103n m\u00f2n<\/th><th>M\u1ee9c chi ph\u00ed<\/th><th>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng t\u1ed1t nh\u1ea5t<\/th><\/tr><\/thead><tbody><tr><td>Th\u00e9p h\u1ee3p kim<\/td><td>Cao<\/td><td>Trung b\u00ecnh \u0111\u1ebfn cao, t\u00f9y theo c\u1ea5p \u0111\u1ed9<\/td><td>Th\u1ea5p \u0111\u1ebfn trung b\u00ecnh<\/td><td>Th\u1ea5p \u0111\u1ebfn trung b\u00ecnh<\/td><td>\u0110\u01b0\u1eddng \u1ed1ng \u00e1p l\u1ef1c, m\u1eb7t b\u00edch, van<\/td><\/tr><tr><td>304 \/ 316 Th\u00e9p kh\u00f4ng g\u1ec9<\/td><td>Trung b\u00ecnh<\/td><td>Moderate<\/td><td>T\u1ed1t<\/td><td>Trung b\u00ecnh<\/td><td>Nhi\u1ec7t \u0111\u1ed9 v\u1eeba ph\u1ea3i v\u1edbi m\u1ed1i lo ng\u1ea1i v\u1ec1 \u0103n m\u00f2n<\/td><\/tr><tr><td>321 \/ 347 Th\u00e9p kh\u00f4ng g\u1ec9<\/td><td>Trung b\u00ecnh<\/td><td>T\u1ed1t h\u01a1n ti\u00eau chu\u1ea9n 304\/316 trong m\u1ed9t s\u1ed1 d\u1ecbch v\u1ee5 nhi\u1ec7t \u0111\u1ed9 cao<\/td><td>T\u1ed1t<\/td><td>Trung b\u00ecnh \u0111\u1ebfn cao<\/td><td>C\u00e1c \u1ee9ng d\u1ee5ng kh\u00f4ng g\u1ec9 ch\u1ecbu \u1ea3nh h\u01b0\u1edfng nhi\u1ec7t ho\u1eb7c nhi\u1ec7t \u0111\u1ed9 cao<\/td><\/tr><tr><td>A286 \/ H\u1ee3p kim 660<\/td><td>Cao<\/td><td>Cao<\/td><td>T\u1ed1t<\/td><td>Cao<\/td><td>Bu l\u00f4ng nhi\u1ec7t \u0111\u1ed9 cao c\u00f3 kh\u1ea3 n\u0103ng duy tr\u00ec \u0111\u1ed9 b\u1ec1n<\/td><\/tr><tr><td>Inconel 625<\/td><td>Trung b\u00ecnh \u0111\u1ebfn cao<\/td><td>R\u1ea5t cao<\/td><td>Excellent<\/td><td>R\u1ea5t cao<\/td><td>Nhi\u1ec7t c\u1ed9ng v\u1edbi \u0103n m\u00f2n nghi\u00eam tr\u1ecdng<\/td><\/tr><tr><td>Inconel 718<\/td><td>R\u1ea5t cao<\/td><td>R\u1ea5t cao<\/td><td>R\u1ea5t t\u1ed1t<\/td><td>R\u1ea5t cao<\/td><td>S\u1eed d\u1ee5ng t\u1ea3i tr\u1ecdng cao, nhi\u1ec7t \u0111\u1ed9 cao, h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 ho\u1eb7c tuabin<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>B\u1ea3ng n\u00e0y n\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m h\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn, kh\u00f4ng ph\u1ea3i l\u00e0 ph\u00ea duy\u1ec7t k\u1ef9 thu\u1eadt cu\u1ed1i c\u00f9ng. S\u1ef1 ph\u00f9 h\u1ee3p th\u1ef1c t\u1ebf ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec7t \u0111\u1ed9, t\u1ea3i tr\u1ecdng, \u00e1p su\u1ea5t, kh\u00f4ng kh\u00ed, v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac v\u00e0 ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ch\u1ed1t nhi\u1ec7t \u0111\u1ed9 cao so v\u1edbi Ch\u1ed1t ti\u00eau chu\u1ea9n<\/h2>\n\n\n\n<p>S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa \u1ed1c v\u00edt nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 \u1ed1c v\u00edt ti\u00eau chu\u1ea9n kh\u00f4ng ch\u1ec9 \u1edf t\u00ean v\u1eadt li\u1ec7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ed1t ti\u00eau chu\u1ea9n<\/h3>\n\n\n\n<p>\u1ed0c v\u00edt b\u1eb1ng th\u00e9p cacbon ho\u1eb7c th\u00e9p kh\u00f4ng g\u1ec9 ti\u00eau chu\u1ea9n th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn theo k\u00edch th\u01b0\u1edbc, c\u1ea5p \u0111\u1ed9 b\u1ec1n, lo\u1ea1i ren, l\u1edbp ph\u1ee7 v\u00e0 chi ph\u00ed. Ch\u00fang ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 b\u00ecnh th\u01b0\u1eddng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ed1t nhi\u1ec7t \u0111\u1ed9 cao<\/h3>\n\n\n\n<p>\u1ed0c v\u00edt nhi\u1ec7t \u0111\u1ed9 cao ph\u1ea3i \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn b\u1edfi c\u00e1c y\u1ebfu t\u1ed1 b\u1ed5 sung:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nhi\u1ec7t \u0111\u1ed9 d\u1ecbch v\u1ee5 t\u1ed1i \u0111a<\/li>\n\n\n\n<li>Ti\u1ebfp x\u00fac nhi\u1ec7t li\u00ean t\u1ee5c ho\u1eb7c gi\u00e1n \u0111o\u1ea1n<\/li>\n\n\n\n<li>T\u1ea3i \u1edf nhi\u1ec7t \u0111\u1ed9<\/li>\n\n\n\n<li>Kh\u1ea3 n\u0103ng ch\u1ed1ng leo<\/li>\n\n\n\n<li>Ch\u1ed1ng oxy h\u00f3a<\/li>\n\n\n\n<li>T\u1ea7n s\u1ed1 chu k\u1ef3 nhi\u1ec7t<\/li>\n\n\n\n<li>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi m\u1eb7t b\u00edch ho\u1eb7c v\u1eadt li\u1ec7u c\u01a1 b\u1ea3n<\/li>\n\n\n\n<li>Gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9 x\u1eed l\u00fd b\u1ec1 m\u1eb7t<\/li>\n\n\n\n<li>C\u00e1c t\u00e0i li\u1ec7u ki\u1ec3m tra c\u1ea7n thi\u1ebft<\/li>\n<\/ul>\n\n\n\n<p>M\u1ed9t l\u1ed7i ph\u1ed5 bi\u1ebfn l\u00e0 ch\u1ecdn c\u1ea5p \u0111\u1ed9 b\u1ec1n \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng cao m\u00e0 kh\u00f4ng ki\u1ec3m tra hi\u1ec7u su\u1ea5t \u1edf nhi\u1ec7t \u0111\u1ed9 cao c\u1ee7a n\u00f3. \u0110\u1ed1i v\u1edbi c\u00e1c m\u1ed1i n\u1ed1i nhi\u1ec7t \u0111\u1ed9 cao, ch\u1ec9 \u0111\u1ed9 b\u1ec1n k\u00e9o \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng l\u00e0 kh\u00f4ng \u0111\u1ee7.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1ch ch\u1ecdn v\u1eadt li\u1ec7u bu\u1ed9c nhi\u1ec7t \u0111\u1ed9 cao ph\u00f9 h\u1ee3p<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. X\u00e1c nh\u1eadn nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c th\u1ef1c<\/h3>\n\n\n\n<p>Kh\u00f4ng ch\u1ecdn v\u1eadt li\u1ec7u ch\u1ec9 d\u1ef1a tr\u00ean danh m\u1ee5c thi\u1ebft b\u1ecb chung. X\u00e1c nh\u1eadn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng<\/li>\n\n\n\n<li>Nhi\u1ec7t \u0111\u1ed9 cao nh\u1ea5t<\/li>\n\n\n\n<li>Ti\u1ebfp x\u00fac li\u00ean t\u1ee5c ho\u1eb7c gi\u00e1n \u0111o\u1ea1n<\/li>\n\n\n\n<li>T\u1ea7n s\u1ed1 chu k\u1ef3 s\u01b0\u1edfi \u1ea5m v\u00e0 l\u00e0m m\u00e1t<\/li>\n\n\n\n<li>Chi ti\u1ebft si\u1ebft ch\u1eb7t c\u00f3 ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi ng\u1ecdn l\u1eeda, kh\u00ed th\u1ea3i, h\u01a1i n\u01b0\u1edbc ho\u1eb7c m\u00f4i tr\u01b0\u1eddng x\u1eed l\u00fd hay kh\u00f4ng<\/li>\n<\/ul>\n\n\n\n<p>V\u00ed d\u1ee5, m\u1ed9t bu l\u00f4ng g\u1ea7n th\u00e2n l\u00f2 c\u00f3 th\u1ec3 g\u1eb7p c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u00e1c v\u1edbi bu l\u00f4ng b\u00ean trong v\u00f9ng kh\u00ed n\u00f3ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Ki\u1ec3m tra xem \u0111\u1ed9 b\u1ec1n hay \u0103n m\u00f2n c\u00f3 ph\u1ea3i l\u00e0 v\u1ea5n \u0111\u1ec1 ch\u00ednh kh\u00f4ng<\/h3>\n\n\n\n<p>N\u1ebfu m\u1ed1i quan t\u00e2m ch\u00ednh l\u00e0 t\u1ea3i tr\u1ecdng c\u01a1 h\u1ecdc \u1edf nhi\u1ec7t \u0111\u1ed9 cao, th\u00e9p h\u1ee3p kim, Inconel 718 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xem x\u00e9t.<\/p>\n\n\n\n<p>N\u1ebfu m\u1ed1i quan t\u00e2m ch\u00ednh l\u00e0 s\u1ef1 \u0103n m\u00f2n c\u1ed9ng v\u1edbi nhi\u1ec7t, th\u00e9p kh\u00f4ng g\u1ec9, 625 ho\u1eb7c c\u00e1c h\u1ee3p kim niken kh\u00e1c c\u00f3 th\u1ec3 ph\u00f9 h\u1ee3p h\u01a1n.<\/p>\n\n\n\n<p>N\u1ebfu c\u1ea3 \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 \u0103n m\u00f2n \u0111\u1ec1u nghi\u00eam tr\u1ecdng, c\u00f3 th\u1ec3 c\u1ea7n ph\u1ea3i s\u1eed d\u1ee5ng \u1ed1c v\u00edt b\u1eb1ng h\u1ee3p kim niken.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Gh\u00e9p v\u1eadt li\u1ec7u chi ti\u1ebft si\u1ebft ch\u1eb7t v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i<\/h3>\n\n\n\n<p>Chi ti\u1ebft si\u1ebft ch\u1eb7t ph\u1ea3i t\u01b0\u01a1ng th\u00edch v\u1edbi m\u1eb7t b\u00edch, \u0111\u01b0\u1eddng \u1ed1ng, v\u1ecf ho\u1eb7c v\u1eadt li\u1ec7u thi\u1ebft b\u1ecb. N\u1ebfu \u0111\u1ed9 gi\u00e3n n\u1edf nhi\u1ec7t ch\u00eanh l\u1ec7ch qu\u00e1 nhi\u1ec1u, m\u1ed1i n\u1ed1i c\u00f3 th\u1ec3 m\u1ea5t t\u1ea3i tr\u01b0\u1edbc ho\u1eb7c ch\u1ecbu \u1ee9ng su\u1ea5t qu\u00e1 m\u1ee9c.<\/p>\n\n\n\n<p>\u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u1eb7t b\u00edch th\u00e9p kh\u00f4ng g\u1ec9<\/li>\n\n\n\n<li>B\u1ed9 trao \u0111\u1ed5i nhi\u1ec7t<\/li>\n\n\n\n<li>B\u00ecnh ch\u1ecbu \u00e1p l\u1ef1c<\/li>\n\n\n\n<li>C\u1ee5m tuabin<\/li>\n\n\n\n<li>H\u1ec7 th\u1ed1ng x\u1ea3<\/li>\n\n\n\n<li>T\u1ed5 h\u1ee3p v\u1eadt li\u1ec7u h\u1ed7n h\u1ee3p<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4. Xem x\u00e9t r\u1ee7i ro c\u00e0i \u0111\u1eb7t v\u00e0 d\u1ed3n chu\u1ed7i<\/h3>\n\n\n\n<p>C\u00e1c \u1ed1c v\u00edt b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 Austenitic v\u00e0 h\u1ee3p kim niken d\u1ec5 b\u1ecb \u0103n m\u00f2n h\u01a1n th\u00e9p cacbon. S\u1ef1 tr\u0169ng c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng ren trong qu\u00e1 tr\u00ecnh si\u1ebft ch\u1eb7t v\u00e0 l\u00e0m cho m\u1ed1i n\u1ed1i kh\u00f4ng th\u1ec3 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<p>\u0110\u1ec3 gi\u1ea3m nguy c\u01a1 d\u1ed3n n\u00e9n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>S\u1eed d\u1ee5ng h\u1ee3p ch\u1ea5t b\u00f4i tr\u01a1n ho\u1eb7c ch\u1ed1ng b\u00f3 c\u1ee9ng th\u00edch h\u1ee3p ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec7t \u0111\u1ed9<\/li>\n\n\n\n<li>Tr\u00e1nh t\u1ed1c \u0111\u1ed9 th\u1eaft ch\u1eb7t qu\u00e1 m\u1ee9c<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng v\u1eadt li\u1ec7u \u0111ai \u1ed1c v\u00e0 bu l\u00f4ng t\u01b0\u01a1ng th\u00edch<\/li>\n\n\n\n<li>X\u00e1c nh\u1eadn ch\u1ea5t l\u01b0\u1ee3ng ren v\u00e0 \u0111\u1ed9 b\u00f3ng b\u1ec1 m\u1eb7t<\/li>\n\n\n\n<li>Xem x\u00e9t c\u00e1c s\u1ee3i \u0111\u01b0\u1ee3c ph\u1ee7 ho\u1eb7c x\u1eed l\u00fd \u0111\u1eb7c bi\u1ec7t n\u1ebfu nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c cho ph\u00e9p<\/li>\n<\/ul>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi k\u00edch th\u01b0\u1edbc t\u00f9y ch\u1ec9nh, d\u1ea1ng ren ho\u1eb7c k\u1ebft h\u1ee3p v\u1eadt li\u1ec7u, t\u1ed1t h\u01a1n l\u00e0 n\u00ean s\u1edbm x\u00e1c nh\u1eadn t\u00ednh kh\u1ea3 thi c\u1ee7a s\u1ea3n xu\u1ea5t th\u00f4ng qua <a href=\"https:\/\/xzfastener.com\/vi\/home\/customized-service\/\">d\u1ecbch v\u1ee5 chi ti\u1ebft si\u1ebft ch\u1eb7t t\u00f9y ch\u1ec9nh<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. \u0110\u1eebng b\u1ecf qua gi\u1edbi h\u1ea1n x\u1eed l\u00fd b\u1ec1 m\u1eb7t<\/h3>\n\n\n\n<p>Nhi\u1ec1u ng\u01b0\u1eddi mua t\u1eadp trung v\u00e0o v\u1eadt li\u1ec7u c\u01a1 b\u1ea3n nh\u01b0ng b\u1ecf qua gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9 l\u1edbp ph\u1ee7. M\u1ea1 k\u1ebdm, oxit \u0111en, m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng v\u00e0 c\u00e1c l\u1edbp ho\u00e0n thi\u1ec7n kh\u00e1c c\u00f3 th\u1ec3 kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi m\u1ecdi m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao. (PTFE)<\/p>\n\n\n\n<p>Tr\u01b0\u1edbc khi ch\u1ecdn x\u1eed l\u00fd b\u1ec1 m\u1eb7t, h\u00e3y x\u00e1c nh\u1eadn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a c\u1ee7a l\u1edbp ph\u1ee7<\/li>\n\n\n\n<li>L\u1edbp ph\u1ee7 c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 kh\u00edt c\u1ee7a ren hay kh\u00f4ng<\/li>\n\n\n\n<li>L\u1edbp ph\u1ee7 c\u00f3 th\u1ec3 ch\u00e1y, xu\u1ed1ng c\u1ea5p ho\u1eb7c ph\u00e1t ra kh\u00f3i hay kh\u00f4ng<\/li>\n\n\n\n<li>Li\u1ec7u b\u1ea3o v\u1ec7 ch\u1ed1ng \u0103n m\u00f2n c\u00f3 c\u00f2n hi\u1ec7u qu\u1ea3 \u1edf nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng<\/li>\n\n\n\n<li>Li\u1ec7u \u0111\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt c\u00f3 cho ph\u00e9p l\u1edbp ph\u1ee7 \u0111\u00f3 hay kh\u00f4ng<\/li>\n<\/ul>\n\n\n\n<p>Trong m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao, v\u1eadt li\u1ec7u n\u1ec1n ph\u00f9 h\u1ee3p quan tr\u1ecdng h\u01a1n l\u1edbp ho\u00e0n thi\u1ec7n trang tr\u00ed ho\u1eb7c b\u1ea3o v\u1ec7 \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Khi c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c nhau c\u00f3 \u00fd ngh\u0129a h\u01a1n<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ecdn th\u00e9p h\u1ee3p kim khi:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u1ee8ng d\u1ee5ng l\u00e0 b\u1eaft v\u00edt b\u1eb1ng \u00e1p l\u1ef1c ho\u1eb7c m\u1eb7t b\u00edch<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u v\u1ec1 s\u1ee9c m\u1ea1nh cao<\/li>\n\n\n\n<li>\u0102n m\u00f2n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t ho\u1eb7c kh\u00f4ng nghi\u00eam tr\u1ecdng<\/li>\n\n\n\n<li>v\u1ea5n \u0111\u1ec1 chi ph\u00ed<\/li>\n\n\n\n<li>D\u1ef1 \u00e1n tu\u00e2n theo ASTM A193 ho\u1eb7c c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt t\u01b0\u01a1ng t\u1ef1<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ecdn th\u00e9p kh\u00f4ng g\u1ec9 khi:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ch\u1ed1ng \u0103n m\u00f2n l\u00e0 quan tr\u1ecdng<\/li>\n\n\n\n<li>Nhi\u1ec7t \u0111\u1ed9 v\u1eeba ph\u1ea3i<\/li>\n\n\n\n<li>T\u1ea3i kh\u00f4ng qu\u00e1 cao<\/li>\n\n\n\n<li>\u1ee8ng d\u1ee5ng y\u00eau c\u1ea7u v\u1ebb ngo\u00e0i s\u1ea1ch s\u1ebd ho\u1eb7c hi\u1ec7u su\u1ea5t kh\u00f4ng r\u1ec9 s\u00e9t<\/li>\n\n\n\n<li>Ng\u01b0\u1eddi mua c\u1ea7n k\u00edch th\u01b0\u1edbc ph\u1ed5 bi\u1ebfn v\u1edbi t\u00ednh s\u1eb5n c\u00f3 d\u1ec5 d\u00e0ng h\u01a1n<\/li>\n<\/ul>\n\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 xem l\u1ea1i c\u00e1c lo\u1ea1i chi ti\u1ebft si\u1ebft ch\u1eb7t b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 h\u1ee3p kim c\u00f3 s\u1eb5n tr\u00ean <a href=\"https:\/\/xzfastener.com\/vi\/home\/products\/\">trang s\u1ea3n ph\u1ea9m<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ecdn A286 \/ H\u1ee3p kim 660 Khi:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kh\u1edbp ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao trong th\u1eddi gian d\u00e0i<\/li>\n\n\n\n<li>Duy tr\u00ec s\u1ee9c m\u1ea1nh quan tr\u1ecdng h\u01a1n hi\u1ec7u su\u1ea5t kh\u00f4ng g\u1ec9 ti\u00eau chu\u1ea9n<\/li>\n\n\n\n<li>V\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng th\u00edch gi\u00e3n n\u1edf nhi\u1ec7t<\/li>\n\n\n\n<li>\u1ee8ng d\u1ee5ng n\u00e0y li\u00ean quan \u0111\u1ebfn tua-bin, thi\u1ebft b\u1ecb \u00e1p su\u1ea5t ho\u1eb7c m\u1eb7t b\u00edch nhi\u1ec7t \u0111\u1ed9 cao<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ecdn h\u1ee3p kim niken khi:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nhi\u1ec7t \u0111\u1ed9 r\u1ea5t cao<\/li>\n\n\n\n<li>\u0102n m\u00f2n ho\u1eb7c oxy h\u00f3a nghi\u00eam tr\u1ecdng<\/li>\n\n\n\n<li>Chi ph\u00ed h\u1ecfng h\u00f3c cao h\u01a1n nhi\u1ec1u so v\u1edbi chi ph\u00ed chi ti\u1ebft si\u1ebft ch\u1eb7t<\/li>\n\n\n\n<li>\u1ee8ng d\u1ee5ng n\u00e0y li\u00ean quan \u0111\u1ebfn thi\u1ebft b\u1ecb h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, x\u1eed l\u00fd h\u00f3a h\u1ecdc, h\u00e0ng h\u1ea3i, \u0111\u1ed1t ch\u00e1y ho\u1eb7c n\u0103ng l\u01b0\u1ee3ng<\/li>\n\n\n\n<li>\u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt c\u1ee7a d\u1ef1 \u00e1n y\u00eau c\u1ea7u tr\u1ef1c ti\u1ebfp Inconel, Hastelloy ho\u1eb7c h\u1ee3p kim niken kh\u00e1c<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Nh\u1eefng sai l\u1ea7m th\u01b0\u1eddng g\u1eb7p khi l\u1ef1a ch\u1ecdn chi ti\u1ebft si\u1ebft ch\u1eb7t nhi\u1ec7t \u0111\u1ed9 cao<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Sai l\u1ea7m: Ch\u1ec9 ch\u1ecdn theo \u0111\u1ed9 b\u1ec1n k\u00e9o<\/h3>\n\n\n\n<p>\u0110\u1ed9 b\u1ec1n k\u00e9o \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng kh\u00f4ng ch\u1ee9ng t\u1ecf \u0111\u01b0\u1ee3c s\u1ef1 ph\u00f9 h\u1ee3p \u1edf nhi\u1ec7t \u0111\u1ed9 cao. H\u1ecfi xem v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 duy tr\u00ec \u0111\u1ed9 b\u1ec1n v\u00e0 t\u1ea3i tr\u01b0\u1edbc \u1edf nhi\u1ec7t \u0111\u1ed9 s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf hay kh\u00f4ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Sai l\u1ea7m 2: S\u1eed d\u1ee5ng 304 ho\u1eb7c 316 ti\u00eau chu\u1ea9n cho m\u1ecdi m\u00f4i tr\u01b0\u1eddng n\u00f3ng<\/h3>\n\n\n\n<p>304 v\u00e0 316 th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 nh\u1eefng v\u1eadt li\u1ec7u h\u1eefu \u00edch, nh\u01b0ng ch\u00fang kh\u00f4ng ph\u1ea3i l\u00e0 gi\u1ea3i ph\u00e1p ph\u1ed5 bi\u1ebfn \u1edf nhi\u1ec7t \u0111\u1ed9 cao. \u0110\u1ed1i v\u1edbi nhi\u1ec7t \u0111\u1ed9 l\u00e2u d\u00e0i, \u1ee9ng su\u1ea5t cao ho\u1eb7c qu\u00e1 tr\u00ecnh oxy h\u00f3a nghi\u00eam tr\u1ecdng, c\u00f3 th\u1ec3 c\u1ea7n m\u1ed9t lo\u1ea1i ph\u00f9 h\u1ee3p h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Sai l\u1ea7m 3: B\u1ecf qua v\u1eadt li\u1ec7u \u0111ai \u1ed1c v\u00e0 v\u00f2ng \u0111\u1ec7m<\/h3>\n\n\n\n<p>M\u1ed9t bu l\u00f4ng ch\u1ea5t l\u01b0\u1ee3ng cao s\u1eed d\u1ee5ng sai \u0111ai \u1ed1c ho\u1eb7c v\u00f2ng \u0111\u1ec7m v\u1eabn c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng. \u0110\u1ed1i v\u1edbi c\u00e1c c\u1ee5m l\u1eafp r\u00e1p \u1edf nhi\u1ec7t \u0111\u1ed9 cao, n\u00ean ch\u1ecdn bu l\u00f4ng, \u0111ai \u1ed1c v\u00e0 v\u00f2ng \u0111\u1ec7m l\u00e0m h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Sai l\u1ea7m: Ch\u1ecdn l\u1edbp ph\u1ee7 m\u00e0 kh\u00f4ng ki\u1ec3m tra nhi\u1ec7t \u0111\u1ed9<\/h3>\n\n\n\n<p>M\u1ed9t s\u1ed1 l\u1edbp ph\u1ee7 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng nh\u01b0ng b\u1ecb ph\u00e2n h\u1ee7y d\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 cao. Lu\u00f4n x\u00e1c nh\u1eadn gi\u1edbi h\u1ea1n l\u1edbp ph\u1ee7 tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Sai l\u1ea7m: X\u00e1c \u0111\u1ecbnh qu\u00e1 m\u1ee9c c\u00e1c h\u1ee3p kim Niken \u0111\u1eaft ti\u1ec1n<\/h3>\n\n\n\n<p>H\u1ee3p kim niken r\u1ea5t t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, nh\u01b0ng ch\u00fang kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng c\u1ea7n thi\u1ebft. N\u1ebfu th\u00e9p h\u1ee3p kim ho\u1eb7c A286 c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u, vi\u1ec7c s\u1eed d\u1ee5ng Inconel c\u00f3 th\u1ec3 ch\u1ec9 l\u00e0m t\u0103ng chi ph\u00ed v\u00e0 th\u1eddi gian th\u1ef1c hi\u1ec7n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Danh s\u00e1ch ki\u1ec3m tra mua h\u00e0ng th\u1ef1c t\u1ebf<\/h2>\n\n\n\n<p>Tr\u01b0\u1edbc khi y\u00eau c\u1ea7u b\u00e1o gi\u00e1 \u1ed1c v\u00edt ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao, h\u00e3y chu\u1ea9n b\u1ecb c\u00e1c th\u00f4ng tin sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Lo\u1ea1i chi ti\u1ebft si\u1ebft ch\u1eb7t: bu l\u00f4ng, bu l\u00f4ng \u0111inh t\u00e1n, v\u00edt, \u0111ai \u1ed1c, v\u00f2ng \u0111\u1ec7m<\/li>\n\n\n\n<li>K\u00edch th\u01b0\u1edbc v\u00e0 ti\u00eau chu\u1ea9n ren: h\u1ec7 m\u00e9t, UNC, UNF, ren t\u00f9y ch\u1ec9nh<\/li>\n\n\n\n<li>C\u1ea5p v\u1eadt li\u1ec7u ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c m\u1ee5c ti\u00eau<\/li>\n\n\n\n<li>Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng v\u00e0 nhi\u1ec7t \u0111\u1ed9 cao nh\u1ea5t<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u t\u1ea3i ho\u1eb7c \u00e1p su\u1ea5t<\/li>\n\n\n\n<li>M\u00f4i tr\u01b0\u1eddng \u1ee9ng d\u1ee5ng: kh\u00f4ng kh\u00ed, h\u01a1i n\u01b0\u1edbc, n\u01b0\u1edbc bi\u1ec3n, h\u00f3a ch\u1ea5t, kh\u00ed th\u1ea3i, l\u00f2 nung, v.v.<\/li>\n\n\n\n<li>Ti\u00eau chu\u1ea9n b\u1eaft bu\u1ed9c: ASTM, ISO, DIN, ASME, ho\u1eb7c \u0111\u1eb7c t\u1ea3 d\u1ef1 \u00e1n<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u x\u1eed l\u00fd b\u1ec1 m\u1eb7t<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u v\u1ec1 s\u1ed1 l\u01b0\u1ee3ng v\u00e0 \u0111\u00f3ng g\u00f3i<\/li>\n\n\n\n<li>C\u00e1c t\u00e0i li\u1ec7u c\u1ea7n thi\u1ebft: gi\u1ea5y ch\u1ee9ng nh\u1eadn v\u1eadt li\u1ec7u, b\u00e1o c\u00e1o ki\u1ec3m tra, b\u00e1o c\u00e1o th\u1eed nghi\u1ec7m, v.v.<\/li>\n<\/ul>\n\n\n\n<p>N\u1ebfu v\u1eadt li\u1ec7u ch\u01b0a \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn, h\u00e3y chia s\u1ebb c\u00e1c y\u00eau c\u1ea7u v\u1ec1 m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c v\u00e0 d\u1ef1 \u00e1n v\u1edbi nh\u00e0 cung c\u1ea5p thay v\u00ec ch\u1ec9 y\u00eau c\u1ea7u \u201cbu l\u00f4ng nhi\u1ec7t \u0111\u1ed9 cao\u201d. Nh\u00e0 cung c\u1ea5p chuy\u00ean nghi\u1ec7p c\u00f3 th\u1ec3 gi\u00fap thu h\u1eb9p ph\u1ea1m vi v\u1eadt li\u1ec7u tr\u01b0\u1edbc khi x\u00e1c nh\u1eadn k\u1ef9 thu\u1eadt cu\u1ed1i c\u00f9ng. N\u1ebfu c\u00f3 th\u1eafc m\u1eafc v\u1ec1 d\u1ef1 \u00e1n, b\u1ea1n c\u00f3 th\u1ec3 li\u00ean h\u1ec7 v\u1edbi nh\u00f3m th\u00f4ng qua <a href=\"https:\/\/xzfastener.com\/vi\/home\/contact-us\/\">trang li\u00ean h\u1ec7<\/a>. \u0110\u1ec3 hi\u1ec3u n\u0103ng l\u1ef1c c\u1ee7a nh\u00e0 cung c\u1ea5p v\u00e0 n\u1ec1n t\u1ea3ng xu\u1ea5t kh\u1ea9u, h\u00e3y truy c\u1eadp <a href=\"https:\/\/xzfastener.com\/vi\/home\/about-us\/\">trang v\u1ec1 ch\u00fang t\u00f4i<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B\u00e0i h\u1ecdc ch\u00ednh<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Vi\u1ec7c l\u1ef1a ch\u1ecdn chi ti\u1ebft si\u1ebft ch\u1eb7t nhi\u1ec7t \u0111\u1ed9 cao ph\u1ea3i d\u1ef1a tr\u00ean nhi\u1ec7t \u0111\u1ed9, t\u1ea3i tr\u1ecdng, \u0111\u1ed9 \u0103n m\u00f2n, \u0111\u1ed9 r\u00e3o, chu tr\u00ecnh nhi\u1ec7t v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a v\u1eadt li\u1ec7u\u2014kh\u00f4ng ch\u1ec9 c\u1ea5p \u0111\u1ed9 b\u1ec1n.<\/li>\n\n\n\n<li>Th\u00e9p h\u1ee3p kim th\u01b0\u1eddng th\u00edch h\u1ee3p cho vi\u1ec7c b\u1eaft v\u00edt b\u1eb1ng \u00e1p l\u1ef1c v\u00e0 m\u1eb7t b\u00edch \u1edf nh\u1eefng n\u01a1i y\u00eau c\u1ea7u \u0111\u1ed9 b\u1ec1n v\u00e0 chi ph\u00ed cao, nh\u01b0ng n\u00f3 c\u00f3 th\u1ec3 c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 trong m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n.<\/li>\n\n\n\n<li>Th\u00e9p kh\u00f4ng g\u1ec9 r\u1ea5t h\u1eefu \u00edch cho kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 \u0103n m\u00f2n v\u1eeba ph\u1ea3i, nh\u01b0ng 304 ho\u1eb7c 316 ti\u00eau chu\u1ea9n kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c coi l\u00e0 v\u1eadt li\u1ec7u ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao ph\u1ed5 bi\u1ebfn.<\/li>\n\n\n\n<li>A286 \/ H\u1ee3p kim 660 l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn m\u1ea1nh m\u1ebd cho vi\u1ec7c b\u1eaft v\u00edt \u1edf nhi\u1ec7t \u0111\u1ed9 cao trong \u0111\u00f3 vi\u1ec7c duy tr\u00ec \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 gi\u00e3n n\u1edf c\u00f3 ki\u1ec3m so\u00e1t l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/li>\n\n\n\n<li>C\u00e1c \u1ed1c v\u00edt b\u1eb1ng h\u1ee3p kim niken nh\u01b0 Inconel 625 ho\u1eb7c 718 \u0111\u01b0\u1ee3c d\u00e0nh ri\u00eang t\u1ed1t nh\u1ea5t cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 nhi\u1ec7t \u0111\u1ed9 kh\u1eafc nghi\u1ec7t, \u0103n m\u00f2n, oxy h\u00f3a ho\u1eb7c t\u1ea3i tr\u1ecdng cao trong \u0111\u00f3 r\u1ee7i ro h\u1ecfng h\u00f3c r\u1ea5t t\u1ed1n k\u00e9m.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">FAQ<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. V\u1eadt li\u1ec7u t\u1ed1t nh\u1ea5t cho \u1ed1c v\u00edt nhi\u1ec7t \u0111\u1ed9 cao l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p>Kh\u00f4ng c\u00f3 v\u1eadt li\u1ec7u t\u1ed1t nh\u1ea5t cho t\u1ea5t c\u1ea3 c\u00e1c \u1ee9ng d\u1ee5ng. Th\u00e9p h\u1ee3p kim c\u00f3 th\u1ec3 th\u00edch h\u1ee3p \u0111\u1ec3 b\u1eaft v\u00edt m\u1eb7t b\u00edch \u00e1p su\u1ea5t cao, th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u1ec3 ch\u1ecbu nhi\u1ec7t v\u00e0 \u0103n m\u00f2n v\u1eeba ph\u1ea3i, \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 b\u1ec1n \u1edf nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 h\u1ee3p kim niken \u0111\u1ec3 ch\u1ecbu nhi\u1ec7t v\u00e0 \u0103n m\u00f2n nghi\u00eam tr\u1ecdng. S\u1ef1 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec7t \u0111\u1ed9, t\u1ea3i tr\u1ecdng, m\u00f4i tr\u01b0\u1eddng v\u00e0 c\u00e1c y\u00eau c\u1ea7u ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Bu l\u00f4ng inox c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c \u1edf nhi\u1ec7t \u0111\u1ed9 cao kh\u00f4ng? (304)<\/h3>\n\n\n\n<p>304 th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng c\u00f3 nhi\u1ec7t \u0111\u1ed9 v\u1eeba ph\u1ea3i, nh\u01b0ng n\u00f3 kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng th\u00edch h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 t\u1ea3i tr\u1ecdng cao ho\u1eb7c nhi\u1ec7t \u0111\u1ed9 cao trong th\u1eddi gian d\u00e0i. \u0110\u1ed1i v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao, chu tr\u00ecnh nhi\u1ec7t ho\u1eb7c c\u00e1c m\u1ed1i n\u1ed1i nh\u1ea1y c\u1ea3m v\u1edbi t\u1eeb bi\u1ebfn, c\u00f3 th\u1ec3 c\u1ea7n lo\u1ea1i h\u1ee3p kim kh\u00f4ng g\u1ec9, A286 ho\u1eb7c niken th\u00edch h\u1ee3p h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. C\u00f3 ph\u1ea3i \u1ed1c v\u00edt lu\u00f4n t\u1ed1t h\u01a1n \u1ed1c v\u00edt b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9?<\/h3>\n\n\n\n<p>Kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng v\u1eady. C\u00e1c \u1ed1c v\u00edt mang l\u1ea1i hi\u1ec7u su\u1ea5t t\u1ed1t h\u01a1n trong m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n v\u00e0 nhi\u1ec7t \u0111\u1ed9 cao kh\u1eafc nghi\u1ec7t, nh\u01b0ng ch\u00fang \u0111\u1eaft h\u01a1n v\u00e0 kh\u00f3 gia c\u00f4ng h\u01a1n nhi\u1ec1u. N\u1ebfu th\u00e9p kh\u00f4ng g\u1ec9 ho\u1eb7c A286 \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u th\u00ec Inconel c\u00f3 th\u1ec3 kh\u00f4ng c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. T\u1ea1i sao bu l\u00f4ng nhi\u1ec7t \u0111\u1ed9 cao b\u1ecb l\u1ecfng theo th\u1eddi gian?<\/h3>\n\n\n\n<p>Bu l\u00f4ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao c\u00f3 th\u1ec3 b\u1ecb l\u1ecfng do d\u00e3o, gi\u00e3n do \u1ee9ng su\u1ea5t, gi\u00e3n n\u1edf nhi\u1ec7t kh\u00f4ng kh\u1edbp, gi\u00e3n \u0111\u1ec7m, oxy h\u00f3a ho\u1eb7c si\u1ebft kh\u00f4ng \u0111\u00fang c\u00e1ch. L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u, b\u00f4i tr\u01a1n, ph\u01b0\u01a1ng ph\u00e1p si\u1ebft ch\u1eb7t v\u00e0 thi\u1ebft k\u1ebf m\u1ed1i n\u1ed1i \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng duy tr\u00ec t\u1ea3i tr\u01b0\u1edbc l\u00e2u d\u00e0i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. V\u1eadt li\u1ec7u \u0111ai \u1ed1c c\u00f3 ph\u00f9 h\u1ee3p v\u1edbi v\u1eadt li\u1ec7u bu l\u00f4ng kh\u00f4ng?<\/h3>\n\n\n\n<p>Trong nhi\u1ec1u \u1ee9ng d\u1ee5ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao, \u0111ai \u1ed1c ph\u1ea3i t\u01b0\u01a1ng th\u00edch v\u1edbi v\u1eadt li\u1ec7u bu l\u00f4ng, nh\u01b0ng kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o n\u00f3 c\u0169ng ph\u1ea3i gi\u1ed1ng h\u1ec7t nhau. \u0110i\u1ec1u quan tr\u1ecdng l\u00e0 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n t\u01b0\u01a1ng th\u00edch, kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9, hi\u1ec7u su\u1ea5t ren v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00f2n. \u0110\u1ed1i v\u1edbi c\u00e1c m\u1ed1i n\u1ed1i quan tr\u1ecdng, h\u00e3y tu\u00e2n theo ti\u00eau chu\u1ea9n d\u1ef1 \u00e1n ho\u1eb7c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>N\u00ean ch\u1ecdn \u1ed1c v\u00edt ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao l\u00e0m th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ch\u1ee9 kh\u00f4ng ph\u1ea3i ph\u1ea7n c\u1ee9ng th\u00f4ng th\u01b0\u1eddng. V\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec7t \u0111\u1ed9 v\u1eadn h\u00e0nh th\u1ef1c t\u1ebf, t\u1ea3i tr\u1ecdng c\u01a1 h\u1ecdc, m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n, chu tr\u00ecnh nhi\u1ec7t, v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac v\u00e0 ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng.<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi vi\u1ec7c b\u1eaft v\u00edt b\u1eb1ng \u00e1p su\u1ea5t nh\u1ea1y c\u1ea3m v\u1edbi chi ph\u00ed, th\u00e9p h\u1ee3p kim c\u00f3 th\u1ec3 ph\u00f9 h\u1ee3p. \u0110\u1ed1i v\u1edbi nhi\u1ec7t \u0111\u1ed9 v\u1eeba ph\u1ea3i v\u00e0 \u0103n m\u00f2n, th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 l\u00e0 \u0111\u1ee7. \u0110\u1ec3 c\u00f3 hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n \u1edf nhi\u1ec7t \u0111\u1ed9 cao, A286 \/ Alloy 660 th\u01b0\u1eddng l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t h\u01a1n. \u0110\u1ed1i v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao, qu\u00e1 tr\u00ecnh oxy h\u00f3a, ti\u1ebfp x\u00fac v\u1edbi h\u00f3a ch\u1ea5t ho\u1eb7c thi\u1ebft b\u1ecb quan tr\u1ecdng, c\u00f3 th\u1ec3 c\u1ea7n \u0111\u1ebfn c\u00e1c \u1ed1c v\u00edt b\u1eb1ng h\u1ee3p kim niken nh\u01b0 Inconel.<\/p>\n\n\n\n<p>C\u00e1ch ti\u1ebfp c\u1eadn mua h\u00e0ng an to\u00e0n nh\u1ea5t l\u00e0 x\u00e1c \u0111\u1ecbnh m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c tr\u01b0\u1edbc, sau \u0111\u00f3 ch\u1ecdn v\u1eadt li\u1ec7u. N\u1ebfu b\u1ea3n v\u1ebd ho\u1eb7c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7, h\u00e3y cung c\u1ea5p chi ti\u1ebft v\u1ec1 nhi\u1ec7t \u0111\u1ed9, m\u00f4i tr\u01b0\u1eddng, \u00e1p su\u1ea5t\/t\u1ea3i tr\u1ecdng v\u00e0 \u1ee9ng d\u1ee5ng tr\u01b0\u1edbc khi b\u00e1o gi\u00e1. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m nguy c\u01a1 tr\u1ea3 qu\u00e1 nhi\u1ec1u cho nh\u1eefng v\u1eadt li\u1ec7u kh\u00f4ng c\u1ea7n thi\u1ebft\u2014ho\u1eb7c t\u1ec7 h\u01a1n l\u00e0 ch\u1ecdn m\u1ed9t chi ti\u1ebft si\u1ebft ch\u1eb7t kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i khi \u1ee9ng d\u1ee5ng.<\/p>","protected":false},"excerpt":{"rendered":"<p>Introduction Selecting high temperature resistant fasteners is not only about choosing a \u201cheat-resistant\u201d bolt or nut. In real industrial use, the fastener must keep enough strength, resist oxidation or corrosion, control thread seizure, and maintain joint preload after repeated heating and cooling. This guide explains how to choose the right material for high-temperature bolts, nuts, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5992,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[110],"tags":[],"class_list":["post-5991","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-product-knowledge"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/5991","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/comments?post=5991"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/5991\/revisions"}],"predecessor-version":[{"id":5993,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/5991\/revisions\/5993"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/media\/5992"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/media?parent=5991"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/categories?post=5991"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/tags?post=5991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}