C\u00e1c d\u1ef1 \u00e1n ng\u00e2n s\u00e1ch th\u1ea5p v\u1eabn c\u00f3 th\u1ec3 b\u1ec1n v\u00e0 an to\u00e0n n\u1ebfu t\u1ed1i \u01b0u \u0111\u00fang: ch\u1ecdn m\u00e1c Inox ph\u00f9 h\u1ee3p m\u00f4i tr\u01b0\u1eddng, ti\u1ebft ki\u1ec7m \u1edf \u0111\u00fang kh\u00e2u (\u0111\u1ed9 d\u00e0y, b\u1ec1 m\u1eb7t, gia c\u00f4ng) v\u00e0 qu\u1ea3n l\u00fd chi ph\u00ed v\u00f2ng \u0111\u1eddi. B\u00e0i vi\u1ebft n\u00e0y l\u00e0 h\u01b0\u1edbng d\u1eabn \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ec3 b\u1ea1n ra quy\u1ebft \u0111\u1ecbnh t\u1ed1i \u01b0u chi ph\u00ed v\u1edbi v\u1eadt li\u1ec7u Inox trong b\u1ed1i c\u1ea3nh th\u1ef1c t\u1ebf t\u1ea1i Vi\u1ec7t Nam.<\/p>\n
– \u01afu ti\u00ean chi ph\u00ed v\u00f2ng \u0111\u1eddi (LCC) thay v\u00ec ch\u1ec9 gi\u00e1 mua ban \u0111\u1ea7u. – Kh\u00e1i ni\u1ec7m: LCC = Chi ph\u00ed mua + Gia c\u00f4ng + L\u1eafp \u0111\u1eb7t + B\u1ea3o tr\u00ec + Thay th\u1ebf \u2013 Gi\u00e1 tr\u1ecb thu h\u1ed3i. L\u1ef1a ch\u1ecdn m\u00e1c \u0111\u00fang m\u00f4i tr\u01b0\u1eddng l\u00e0 y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng l\u1edbn nh\u1ea5t \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n v\u00e0 chi ph\u00ed.<\/p>\n – \u01afu ti\u00ean: 430 (ferritic) ho\u1eb7c 201 (austenitic Mn-N), b\u1ec1 m\u1eb7t 2B\/BA\/No.4 t\u00f9y trang tr\u00ed. – \u01afu ti\u00ean: 201 ch\u1ea5t l\u01b0\u1ee3ng \u1ed5n ho\u1eb7c 304 n\u1ebfu c\u00f3 ch\u1ea5t t\u1ea9y r\u1eeda\/clo. – T\u1ed1i \u01b0u: 304 l\u00e0 \u201c\u0111i\u1ec3m ng\u1ecdt\u201d gi\u1eefa chi ph\u00ed v\u00e0 \u0111\u1ed9 b\u1ec1n; 430\/201 kh\u00f4ng khuy\u1ebfn ngh\u1ecb cho k\u1ebft c\u1ea5u h\u1ee9ng m\u01b0a. – T\u1ed1i \u01b0u \u0111\u1ed9 b\u1ec1n: 316L (c\u00f3 Mo) \u2013 kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7 pitting t\u1ed1t h\u01a1n r\u00f5 r\u1ec7t so v\u1edbi 304. G\u1ee3i \u00fd k\u1ef9 thu\u1eadt: Ch\u1ec9 s\u1ed1 kh\u00e1ng r\u1ed7 PREN \u2248 %Cr + 3.3\u00d7%Mo + 16\u00d7%N – Kh\u1ed1i l\u01b0\u1ee3ng ~ t (\u0111\u1ed9 d\u00e0y); \u0111\u1ed9 c\u1ee9ng u\u1ed1n ~ t^3. Gi\u1ea3m 20% \u0111\u1ed9 d\u00e0y ti\u1ebft ki\u1ec7m 20% v\u1eadt li\u1ec7u nh\u01b0ng c\u00f3 th\u1ec3 m\u1ea5t g\u1ea7n 50% \u0111\u1ed9 c\u1ee9ng. Khuy\u1ebfn ngh\u1ecb nhanh: – 2B: Kinh t\u1ebf nh\u1ea5t cho c\u00f4ng nghi\u1ec7p, b\u1ec1 m\u1eb7t m\u1edd, d\u1ec5 v\u1ec7 sinh v\u1edbi ng\u00e0nh th\u1ef1c ph\u1ea9m kh\u00f4. – Thi\u1ebft k\u1ebf theo kh\u1ed5 t\u1ea5m\/coil ti\u00eau chu\u1ea9n (1219\u00d72438; 1219\u00d73048; 1500\u00d73000 mm) \u0111\u1ec3 t\u1ed1i \u01b0u nesting. – H\u00e0n: MIG\/TIG cho k\u1ebft c\u1ea5u; \u0111i\u1ec3m (spot) cho t\u1ea5m m\u1ecfng h\u00e0ng lo\u1ea1t \u0111\u1ec3 r\u1ebb v\u00e0 nhanh. – D\u00f9ng 304\/316L \u1edf v\u00f9ng h\u1ee9ng n\u01b0\u1edbc\/ti\u1ebfp x\u00fac h\u00f3a ch\u1ea5t; 201\/430 cho ph\u1ea7n kh\u00f4\/khu\u1ea5t. – Tr\u00e1nh nhi\u1ec5m s\u1eaft t\u1eeb d\u1ee5ng c\u1ee5 th\u00e9p th\u01b0\u1eddng (d\u1eabn \u0111\u1ebfn r\u1ec9 n\u00e2u gi\u1ea3). D\u00f9ng d\u1ee5ng c\u1ee5 ri\u00eang cho Inox. – L\u1ecbch v\u1ec7 sinh: – Lan can trong nh\u00e0 kh\u00f4: 201 \u1ed1ng trang tr\u00ed (ASTM A554), b\u1ec1 m\u1eb7t HL; ph\u1ee5 ki\u1ec7n 201\/304. Tr\u1ee5 b\u00edch 201 d\u00e0y 1.5\u20132.0 mm c\u00f3 g\u00e2n. Gi\u00e1 Inox bi\u1ebfn \u0111\u1ed9ng theo Nickel\/Molybdenum; d\u01b0\u1edbi \u0111\u00e2y l\u00e0 t\u1ef7 l\u1ec7 t\u01b0\u01a1ng \u0111\u1ed1i ph\u1ed5 bi\u1ebfn theo kg \u0111\u1ec3 b\u1ea1n so s\u00e1nh (201 = 1.0): M\u1eb9o mua: 1) X\u00e1c \u0111\u1ecbnh m\u00f4i tr\u01b0\u1eddng v\u00e0 r\u1ee7i ro clo\/n\u01b0\u1edbc \u0111\u1ecdng (trong nh\u00e0\/ngo\u00e0i tr\u1eddi\/g\u1ea7n bi\u1ec3n\/h\u00f3a ch\u1ea5t). – Nickel Institute \u2013 Selection and Use of Stainless Steel; Corrosion and PREN guidance (nickelinstitute.org) T\u1ed1i \u01b0u chi ph\u00ed v\u1edbi Inox trong d\u1ef1 \u00e1n ng\u00e2n s\u00e1ch th\u1ea5p kh\u00f4ng ph\u1ea3i l\u00e0 \u201ch\u1ea1 m\u00e1c b\u1eb1ng m\u1ecdi gi\u00e1\u201d, m\u00e0 l\u00e0 ch\u1ecdn \u0111\u00fang m\u00e1c theo m\u00f4i tr\u01b0\u1eddng, ti\u1ebft ki\u1ec7m \u1edf \u0111\u1ed9 d\u00e0y\/ho\u00e0n thi\u1ec7n\/thi\u1ebft k\u1ebf, v\u00e0 qu\u1ea3n l\u00fd b\u1ea3o tr\u00ec h\u1ee3p l\u00fd. \u1ede trong nh\u00e0 kh\u00f4, 430\/201 cho chi ph\u00ed th\u1ea5p nh\u1ea5t; ngo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb, 304 l\u00e0 l\u1ef1a ch\u1ecdn c\u00e2n b\u1eb1ng; g\u1ea7n bi\u1ec3n ho\u1eb7c clo cao, 316L ho\u1eb7c 444 gi\u00fap \u201cr\u1ebb m\u00e0 b\u1ec1n\u201d h\u01a1n v\u1ec1 d\u00e0i h\u1ea1n. K\u1ebft h\u1ee3p thi\u1ebft k\u1ebf c\u00f3 g\u00e2n, chu\u1ea9n h\u00f3a kh\u1ed5 t\u1ea5m, quy tr\u00ecnh gia c\u00f4ng ph\u00f9 h\u1ee3p v\u00e0 v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 s\u1ebd gi\u00fap b\u1ea1n \u0111\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng k\u1ef9 thu\u1eadt v\u1edbi chi ph\u00ed t\u1ed1i \u01b0u.<\/p>\n C\u1ea7n t\u01b0 v\u1ea5n c\u1ea5u h\u00ecnh \u201cr\u1ebb m\u00e0 b\u1ec1n\u201d cho tr\u01b0\u1eddng h\u1ee3p c\u1ee5 th\u1ec3? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t m\u00e1c \u2013 \u0111\u1ed9 d\u00e0y \u2013 b\u1ec1 m\u1eb7t \u2013 gia c\u00f4ng t\u1ed1i \u01b0u v\u00e0 b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t. H\u01b0\u1edbng d\u1eabn ch\u1ecdn m\u00e1c, \u0111\u1ed9 d\u00e0y, b\u1ec1 m\u1eb7t v\u00e0 gia c\u00f4ng Inox \u0111\u1ec3 t\u1ed1i \u01b0u chi ph\u00ed nh\u01b0ng v\u1eabn b\u1ec1n. So s\u00e1nh 201\/304\/316\/430\/444, quy tr\u00ecnh 6 b\u01b0\u1edbc, v\u00ed d\u1ee5 th\u1ef1c t\u1ebf.<\/p>\n","protected":false},"author":7,"featured_media":1042,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1609","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"acf":[],"_links":{"self":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1609","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/comments?post=1609"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1609\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1042"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1609"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1609"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1609"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n– Ch\u1ecdn m\u00e1c theo m\u00f4i tr\u01b0\u1eddng (\u1ea9m, clo, n\u01b0\u1edbc bi\u1ec3n) tr\u01b0\u1edbc; sau \u0111\u00f3 m\u1edbi t\u1ed1i \u01b0u \u0111\u1ed9 d\u00e0y, ho\u00e0n thi\u1ec7n, v\u00e0 thi c\u00f4ng.
\n– Ti\u1ebft ki\u1ec7m \u1edf kh\u00e2u kh\u00f4ng r\u1ee7i ro (thi\u1ebft k\u1ebf, chu\u1ea9n h\u00f3a k\u00edch th\u01b0\u1edbc, gi\u1ea3m ph\u1ebf li\u1ec7u) thay v\u00ec h\u1ea1 m\u00e1c sai m\u00f4i tr\u01b0\u1eddng.<\/p>\nChi ph\u00ed v\u00f2ng \u0111\u1eddi (LCC) \u2013 ch\u00eca kh\u00f3a d\u1ef1 \u00e1n ng\u00e2n s\u00e1ch th\u1ea5p<\/h3>\n
\n– H\u1ec7 qu\u1ea3: M\u1ed9t l\u1ef1a ch\u1ecdn ban \u0111\u1ea7u \u0111\u1eaft h\u01a1n (vd. 304 thay 201) c\u00f3 th\u1ec3 r\u1ebb h\u01a1n sau 3\u20135 n\u0103m n\u1ebfu gi\u1ea3m s\u1eeda ch\u1eefa\/thay th\u1ebf.
\n– V\u00ed d\u1ee5 r\u00fat g\u1ecdn: Lan can ngo\u00e0i tr\u1eddi xa bi\u1ec3n
\n – Ph\u01b0\u01a1ng \u00e1n A (201, 1.2 mm): r\u1ebb ban \u0111\u1ea7u, nh\u01b0ng \u1ed1 v\u00e0ng\/\u0103n m\u00f2n theo \u0111i\u1ec3m sau 12\u201324 th\u00e1ng \u2192 s\u01a1n\/ph\u1ee7 \u0111\u1ecbnh k\u1ef3, c\u00f3 th\u1ec3 ph\u1ea3i thay sau 3\u20134 n\u0103m.
\n – Ph\u01b0\u01a1ng \u00e1n B (304, 1.2 mm): cao h\u01a1n 30\u201350% l\u00fac mua, nh\u01b0ng \u1ed5n \u0111\u1ecbnh 8\u201312 n\u0103m ch\u1ec9 c\u1ea7n v\u1ec7 sinh.
\n \u2192 T\u1ed5ng chi ph\u00ed 5 n\u0103m th\u01b0\u1eddng nghi\u00eang v\u1ec1 304 trong \u0111i\u1ec1u ki\u1ec7n ngo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb.<\/p>\nTrong nh\u00e0, kh\u00f4ng kh\u00ed kh\u00f4 (v\u0103n ph\u00f2ng, showroom, n\u1ed9i th\u1ea5t kh\u00f4)<\/h3>\n
\n– 430: Gi\u00e1 c\u1ea1nh tranh, t\u1eeb t\u00ednh, \u0111\u1ecbnh h\u00ecnh v\u1eeba ph\u1ea3i, h\u00e0n h\u1ea1n ch\u1ebf. H\u1ee3p cho t\u1ea5m \u1ed1p, n\u1eb9p trang tr\u00ed, k\u1ec7 nh\u1eb9.
\n– 201: D\u1ec5 h\u00e0n\/\u0111\u1ecbnh h\u00ecnh, b\u1ec1 m\u1eb7t \u0111\u1eb9p; tr\u00e1nh ti\u1ebfp x\u00fac h\u00f3a ch\u1ea5t ch\u1ee9a clo. Cho tay v\u1ecbn, \u0111\u1ed3 n\u1ed9i th\u1ea5t, k\u1ec7 nh\u1eb9.
\n– Khi c\u00f3 y\u00eau c\u1ea7u h\u00e0n nhi\u1ec1u ho\u1eb7c c\u1ea7n \u0111\u1ed9 d\u1ebbo t\u1ed1t: nghi\u00eang v\u1ec1 201; khi ch\u1ee7 y\u1ebfu l\u00e0 t\u1ea5m \u1ed1p, v\u00edt c\u01a1 kh\u00ed: c\u00e2n nh\u1eafc 430.<\/p>\nTrong nh\u00e0 \u1ea9m nh\u1eb9, v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 (b\u1ebfp \u0103n c\u00f4ng nghi\u1ec7p kh\u00f4, kho m\u00e1t)<\/h3>\n
\n– 201 c\u00f3 th\u1ec3 b\u1ecb \u201ctr\u00e0 h\u00f3a\u201d (tea staining) n\u1ebfu c\u00f3 h\u01a1i \u1ea9m + mu\u1ed1i\/clo. N\u1ebfu d\u00f9ng 201: thi\u1ebft k\u1ebf tho\u00e1t n\u01b0\u1edbc t\u1ed1t, v\u1ec7 sinh b\u1eb1ng ch\u1ea5t t\u1ea9y kh\u00f4ng ch\u1ee9a clo, passivation sau h\u00e0n.
\n– 304 an to\u00e0n h\u01a1n khi c\u00f3 clo t\u1ea9y r\u1eeda.<\/p>\nNgo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb, xa bi\u1ec3n (>10\u201315 km), m\u01b0a n\u1eafng<\/h3>\n
\n– Thi\u1ebft k\u1ebf gi\u1ea3m \u1ee9 n\u01b0\u1edbc, ch\u1ecdn b\u1ec1 m\u1eb7t No.4\/Hairline theo h\u01b0\u1edbng tho\u00e1t n\u01b0\u1edbc \u0111\u1ec3 h\u1ea1n ch\u1ebf b\u00e1m b\u1ea9n.<\/p>\nKhu v\u1ef1c g\u1ea7n bi\u1ec3n, s\u01b0\u01a1ng m\u00f9 mu\u1ed1i, clo cao (b\u1ec3 b\u01a1i, nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t nh\u1eb9)<\/h3>\n
\n– Ph\u01b0\u01a1ng \u00e1n ng\u00e2n s\u00e1ch th\u1ea5p nh\u01b0ng b\u1ec1n: 444 (ferritic Mo) \u2013 kh\u00e1ng r\u1ed7 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng 316L trong nhi\u1ec1u m\u00f4i tr\u01b0\u1eddng, gi\u00e1 th\u01b0\u1eddng th\u1ea5p h\u01a1n 316L, h\u00e0n \u0111\u01b0\u1ee3c khi ki\u1ec3m so\u00e1t quy tr\u00ecnh.
\n– Khi ng\u00e2n s\u00e1ch r\u1ea5t h\u1ea1n: 304 c\u00f3 th\u1ec3 d\u00f9ng t\u1ea1m n\u1ebfu:
\n – Thi\u1ebft k\u1ebf lo\u1ea1i b\u1ecf n\u01b0\u1edbc \u0111\u1ecdng; ch\u1ecdn b\u1ec1 m\u1eb7t m\u1ecbn; r\u1eeda n\u01b0\u1edbc ng\u1ecdt \u0111\u1ecbnh k\u1ef3.
\n – Ch\u1ea5p nh\u1eadn v\u1ec7 sinh\/b\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean, nguy c\u01a1 tea staining.<\/p>\n
\n– 201: ~15\u201317 (th\u1ea5p)
\n– 430: ~16\u201317
\n– 304\/304L: ~18\u201319
\n– 316\/316L: ~23\u201324
\n– 444: ~24
\nPREN cao h\u01a1n th\u01b0\u1eddng kh\u00e1ng r\u1ed7 t\u1ed1t h\u01a1n trong m\u00f4i tr\u01b0\u1eddng ch\u1ee9a clo.<\/p>\n
\n– V\u00ed d\u1ee5: T\u1ea5m 1.0 mm \u2192 0.8 mm
\n – Ti\u1ebft ki\u1ec7m kh\u1ed1i l\u01b0\u1ee3ng \u2248 20%
\n – \u0110\u1ed9 c\u1ee9ng u\u1ed1n gi\u1ea3m \u2248 (0.8^3 \/ 1.0^3) = 0.512 (gi\u1ea3m ~49%)
\n\u2192 H\u00e3y b\u00f9 c\u1ee9ng b\u1eb1ng g\u00e2n t\u0103ng c\u1ee9ng, d\u1eadp n\u1ebfp, g\u1ea5p c\u1ea1nh thay v\u00ec h\u1ea1 d\u00e0y \u201cph\u1eb3ng\u201d \u0111\u1ec3 v\u1eabn \u0111\u1ea1t \u0111\u1ed9 v\u00f5ng\/\u1ed5n \u0111\u1ecbnh mong mu\u1ed1n v\u1edbi chi ph\u00ed t\u1ed1i \u01b0u.<\/p>\n
\n– K\u1ebft c\u1ea5u t\u1ea5m ph\u1eb3ng ch\u1ecbu l\u1ef1c: \u01b0u ti\u00ean g\u00e2n\/g\u1ea5p m\u00e9p; tr\u00e1nh d\u00f9ng t\u1ea5m ph\u1eb3ng qu\u00e1 m\u1ecfng.
\n– \u1ed0ng h\u1ed9p\/\u1ed1ng tr\u00f2n ch\u1ecbu u\u1ed1n: 304\/201 \u1ed1ng ti\u00eau chu\u1ea9n ASTM A554 c\u00f3 t\u1ec9 s\u1ed1 \u0111\u1ed9 c\u1ee9ng\/gi\u00e1 t\u1ed1t; ch\u1ecdn \u0111\u01b0\u1eddng k\u00ednh\/l\u01b0\u1ee3ng th\u00e0nh ph\u00f9 h\u1ee3p nh\u1ecbp.
\n– Chi ti\u1ebft trang tr\u00ed nh\u1eb9: c\u00f3 th\u1ec3 xu\u1ed1ng 0.8\u20131.0 mm n\u1ebfu c\u00f3 g\u00e2n\/g\u00f3c 90\u00b0; tr\u00e1nh b\u1ec1 m\u1eb7t ph\u1eb3ng kh\u1ed5 l\u1edbn.<\/p>\n
\n– BA (Bright Annealed): M\u1ecbn s\u00e1ng h\u01a1n 2B, v\u1eabn r\u1ebb h\u01a1n g\u01b0\u01a1ng; ph\u00f9 h\u1ee3p trang tr\u00ed trong nh\u00e0.
\n– No.4\/Hairline: Trang tr\u00ed ph\u1ed5 bi\u1ebfn; che v\u1ebft x\u01b0\u1edbc nh\u1eb9 t\u1ed1t h\u01a1n BA; chi ph\u00ed trung b\u00ecnh.
\n– No.8 G\u01b0\u01a1ng: \u0110\u1eaft; ch\u1ec9 d\u00f9ng khi th\u1eadt s\u1ef1 c\u1ea7n th\u1ea9m m\u1ef9 cao.
\nM\u1eb9o ti\u1ebft ki\u1ec7m:
\n– D\u00f9ng 2B cho m\u1eb7t khu\u1ea5t; No.4\/HL cho m\u1eb7t nh\u00ecn th\u1ea5y.
\n– B\u1ed1 tr\u00ed h\u01b0\u1edbng x\u01b0\u1edbc d\u1ecdc theo h\u01b0\u1edbng tho\u00e1t n\u01b0\u1edbc \u0111\u1ec3 h\u1ea1n ch\u1ebf b\u00e1m b\u1ea9n ngo\u00e0i tr\u1eddi.<\/p>\nChu\u1ea9n h\u00f3a k\u00edch th\u01b0\u1edbc, gi\u1ea3m ph\u1ebf li\u1ec7u<\/h3>\n
\n– Gom \u0111\u01a1n h\u00e0ng theo m\u00e1c\/\u0111\u1ed9 d\u00e0y\/b\u1ec1 m\u1eb7t \u0111\u1ec3 \u0111\u01b0\u1ee3c gi\u00e1 t\u1ed1t v\u00e0 gi\u1ea3m chuy\u1ec3n \u0111\u1ed5i.<\/p>\nCh\u1ecdn quy tr\u00ecnh gia c\u00f4ng ph\u00f9 h\u1ee3p<\/h3>\n
\n– C\u1eaft: C\u1eaft laser cho bi\u00ean d\u1ea1ng ph\u1ee9c t\u1ea1p; ch\u1ea5n\/g\u1ea5p t\u1ea1o g\u00e2n \u0111\u1ec3 d\u00f9ng t\u1ea5m m\u1ecfng h\u01a1n m\u00e0 v\u1eabn c\u1ee9ng.
\n– Ph\u1ee5 ki\u1ec7n c\u01a1 kh\u00ed: \u1ede s\u1ea3n ph\u1ea9m l\u1eafp gh\u00e9p, d\u00f9ng bul\u00f4ng\/\u0111inh t\u00e1n Inox \u0111\u00fang m\u00e1c; ch\u00e8n c\u00e1ch \u0111i\u1ec7n n\u1ebfu gh\u00e9p kh\u00e1c m\u00e1c \u0111\u1ec3 h\u1ea1n ch\u1ebf \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a.<\/p>\nTr\u1ed9n m\u00e1c chi\u1ebfn l\u01b0\u1ee3c (hybrid)<\/h3>\n
\n– V\u00ed d\u1ee5 lan can ngo\u00e0i tr\u1eddi: Tr\u1ee5\/\u0111\u1ebf 304; thanh trang tr\u00ed 201\/430. Ch\u00fa \u00fd tr\u00e1nh n\u01b0\u1edbc \u0111\u1ecdng t\u1ea1i m\u1ed1i giao.<\/p>\nKi\u1ec3m so\u00e1t b\u1ec1 m\u1eb7t sau gia c\u00f4ng<\/h3>\n
\n– T\u1ea9y x\u1ec9 h\u00e0n\/pickling + passivation cho m\u1ed1i h\u00e0n ngo\u00e0i tr\u1eddi, \u0111\u1eb7c bi\u1ec7t v\u1edbi 304\/316L.
\n– D\u00f9ng film b\u1ea3o v\u1ec7 PE trong v\u1eadn chuy\u1ec3n\/l\u1eafp \u0111\u1eb7t; b\u00f3c \u0111\u00fang th\u1eddi \u0111i\u1ec3m \u0111\u1ec3 tr\u00e1nh \u201cn\u1ea5u\u201d film d\u01b0\u1edbi n\u1eafng.<\/p>\n
\n – Trong nh\u00e0 kh\u00f4: 6\u201312 th\u00e1ng\/l\u1ea7n.
\n – Ngo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb: 2\u20134 th\u00e1ng\/l\u1ea7n.
\n – G\u1ea7n bi\u1ec3n\/h\u1ed3 b\u01a1i: 2\u20134 tu\u1ea7n\/l\u1ea7n b\u1eb1ng n\u01b0\u1edbc ng\u1ecdt.
\n– Dung d\u1ecbch v\u1ec7 sinh: X\u00e0 ph\u00f2ng nh\u1eb9, n\u01b0\u1edbc; tr\u00e1nh ch\u1ea5t t\u1ea9y ch\u1ee9a clo\/hypochlorite. V\u1ebft tr\u00e0 h\u00f3a: d\u00f9ng dung d\u1ecbch t\u1ea9y Inox chuy\u00ean d\u1ee5ng, r\u1eeda k\u1ef9, passivation n\u1ebfu c\u1ea7n.
\n– Thi\u1ebft k\u1ebf kh\u00f4ng che ch\u1eafn k\u00edn; \u0111\u1ec3 th\u00f4ng gi\u00f3, tho\u00e1t n\u01b0\u1edbc.<\/p>\n
\n– K\u1ec7 kho kh\u00f4, t\u1ea3i nh\u1eb9: 430 t\u1ea5m 2B 0.8\u20131.0 mm, g\u1ea5p m\u00e9p l\u00e0m g\u00e2n; c\u1ed9t 201 h\u1ed9p m\u1ecfng; bul\u00f4ng m\u1ea1 k\u1ebdm t\u00e1ch bi\u1ec7t m\u00f4i tr\u01b0\u1eddng \u1ea9m.
\n– H\u1ed9p t\u1ee7 \u0111i\u1ec7n ngo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb: 304 t\u1ea5m 1.2\u20131.5 mm, 2B; m\u00e1i h\u1eaft tr\u00e1nh n\u01b0\u1edbc \u0111\u1ecdng; gio\u0103ng EPDM; v\u1ec7 sinh 3 th\u00e1ng\/l\u1ea7n.
\n– B\u1ed3n n\u01b0\u1edbc sinh ho\u1ea1t: 304 l\u00e0 l\u1ef1a ch\u1ecdn kinh t\u1ebf-b\u1ec1n v\u1eefng; ch\u1ec9 d\u00f9ng 201 khi nh\u00e0 s\u1ea3n xu\u1ea5t cam k\u1ebft x\u1eed l\u00fd b\u1ec1 m\u1eb7t v\u00e0 b\u1ea1n ch\u1ea5p nh\u1eadn r\u1ee7i ro \u0103n m\u00f2n s\u1edbm.
\n– H\u1ea1ng m\u1ee5c g\u1ea7n bi\u1ec3n: 444 t\u1ea5m\/\u1ed1ng thay 316L khi c\u1ea7n ti\u1ebft ki\u1ec7m; \u0111\u1ea3m b\u1ea3o quy tr\u00ecnh h\u00e0n \u0111\u00fang, v\u1ec7 sinh n\u01b0\u1edbc ng\u1ecdt \u0111\u1ecbnh k\u1ef3.
\n– \u1ed0ng x\u1ea3 nhi\u1ec7t \u0111\u1ed9 cao (phi c\u00f4ng nghi\u1ec7p): 409\/441 c\u00f3 th\u1ec3 l\u00e0 l\u1ef1a ch\u1ecdn th\u1ea5p chi ph\u00ed h\u01a1n 304; tuy kh\u00f4ng ch\u1ed1ng r\u1ec9 b\u1eb1ng nh\u01b0ng ch\u1ecbu nhi\u1ec7t t\u1ed1t.<\/p>\n
\n– 201: \u2248 1.0 (th\u1ea5p nh\u1ea5t)
\n– 430: \u2248 1.0\u20131.1
\n– 304\/304L: \u2248 1.6\u20132.0
\n– 444: \u2248 2.0\u20132.3
\n– 316L: \u2248 2.4\u20133.0
\nL\u01b0u \u00fd: T\u1ef7 l\u1ec7 thay \u0111\u1ed5i theo th\u1ecb tr\u01b0\u1eddng v\u00e0 quy c\u00e1ch. H\u00e3y h\u1ecfi b\u00e1o gi\u00e1 theo m\u00e1c\/\u0111\u1ed9 d\u00e0y\/b\u1ec1 m\u1eb7t\/kh\u1ed5 t\u1ea5m \u0111\u1ec3 so s\u00e1nh \u0111\u00fang.<\/p>\n
\n– Y\u00eau c\u1ea7u ch\u1ee9ng ch\u1ec9 MTC (EN 10204 3.1), ti\u00eau chu\u1ea9n ASTM A240 (t\u1ea5m\/cu\u1ed9n), ASTM A554 (\u1ed1ng trang tr\u00ed), ASTM A312 (\u1ed1ng c\u00f4ng nghi\u1ec7p), ASTM A480 (dung sai t\u1ea5m).
\n– Ki\u1ec3m tra \u0111\u1ed9 d\u00e0y th\u1ef1c, b\u1ec1 m\u1eb7t, film PE, \u0111\u1ed9 ph\u1eb3ng, ngu\u1ed3n g\u1ed1c m\u00e1c.
\n– V\u1edbi \u1ee9ng d\u1ee5ng g\u1ea7n bi\u1ec3n: \u01b0u ti\u00ean 316L\/444 c\u00f3 ch\u1ee9ng ch\u1ec9 th\u00e0nh ph\u1ea7n Mo\/N \u0111\u00fang chu\u1ea9n.
\n– C\u00e2n nh\u1eafc h\u00e0ng coil x\u1ebb b\u0103ng cho s\u1ed1 l\u01b0\u1ee3ng l\u1edbn \u0111\u1ec3 ti\u1ebft ki\u1ec7m.<\/p>\n
\n2) Ch\u1ecdn m\u00e1c t\u1ed1i thi\u1ec3u \u0111\u00e1p \u1ee9ng m\u00f4i tr\u01b0\u1eddng (430\/201\/304\/444\/316L).
\n3) Thi\u1ebft k\u1ebf k\u1ebft c\u1ea5u c\u00f3 g\u00e2n\/g\u1ea5p m\u00e9p \u0111\u1ec3 d\u00f9ng \u0111\u1ed9 d\u00e0y t\u1ed1i \u01b0u, h\u1ea1n ch\u1ebf b\u1ec1 m\u1eb7t ph\u1eb3ng l\u1edbn.
\n4) Ch\u1ecdn b\u1ec1 m\u1eb7t \u201c\u0111\u1ee7 d\u00f9ng\u201d (2B\/BA\/No.4\/HL), \u01b0u ti\u00ean 2B cho m\u1eb7t khu\u1ea5t.
\n5) L\u1eadp ph\u01b0\u01a1ng \u00e1n gia c\u00f4ng v\u00e0 nesting t\u1ed1i \u01b0u, ti\u00eau chu\u1ea9n h\u00f3a k\u00edch th\u01b0\u1edbc.
\n6) K\u1ebf ho\u1ea1ch b\u1ea3o tr\u00ec t\u1ed1i thi\u1ec3u theo m\u00f4i tr\u01b0\u1eddng; d\u1ef1 ph\u00f2ng v\u1ec7 sinh \u0111\u1ec3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd.<\/p>\n
\n– International Stainless Steel Forum (ISSF) \u2013 Stainless Steel in Architecture, Building and Construction (worldstainless.org)
\n– Outokumpu \u2013 Corrosion resistance and grade datasheets; Stainless Steel Handbook (outokumpu.com)
\n– ASTM A240\/A480\/A554\/A312 \u2013 Ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u v\u00e0 dung sai t\u1ea5m\/\u1ed1ng Inox (astm.org)
\n– EN 10088 \u2013 Stainless steels, Part 1\u20133 (standards development bodies)<\/p>\n
\nHotline: 0343.417.281
\nEmail: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"