{"id":2082,"date":"2026-05-31T00:34:12","date_gmt":"2026-05-30T17:34:12","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/so-sanh-inox-cuon-can-nong-no-1-va-can-nguoi-2b-ba-chi-tiet-2\/"},"modified":"2026-05-31T00:34:12","modified_gmt":"2026-05-30T17:34:12","slug":"so-sanh-inox-cuon-can-nong-no-1-va-can-nguoi-2b-ba-chi-tiet-2","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/so-sanh-inox-cuon-can-nong-no-1-va-can-nguoi-2b-ba-chi-tiet-2\/","title":{"rendered":"So s\u00e1nh inox cu\u1ed9n c\u00e1n n\u00f3ng No.1 v\u00e0 c\u00e1n ngu\u1ed9i 2B, BA chi ti\u1ebft"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-dinh-nghia-chuan-ve-be-mat-no1-2b-ba\">\u0110\u1ecbnh ngh\u0129a chu\u1ea9n v\u1ec1 b\u1ec1 m\u1eb7t No.1, 2B, BA<\/a><\/li>\n<li><a href=\"#toc-1-quy-trinh-san-xuat-vi-sao-be-mat-va-dung-sai-khac-\">Quy tr\u00ecnh s\u1ea3n xu\u1ea5t: v\u00ec sao b\u1ec1 m\u1eb7t v\u00e0 dung sai kh\u00e1c nhau?<\/a><\/li>\n<li><a href=\"#toc-2-thong-so-ky-thuat-dien-hinh-tai-thi-truong-viet-na\">Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111i\u1ec3n h\u00ecnh t\u1ea1i th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam<\/a><\/li>\n<li><a href=\"#toc-3-tinh-chat-co-hoc-va-he-qua-khi-gia-cong\">T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 h\u1ec7 qu\u1ea3 khi gia c\u00f4ng<\/a><\/li>\n<li><a href=\"#toc-4-so-sanh-trong-diem-no1-vs-2b-vs-ba\">So s\u00e1nh tr\u1ecdng \u0111i\u1ec3m: No.1 vs 2B vs BA<\/a><\/li>\n<li><a href=\"#toc-5-ung-dung-khuyen-nghi-theo-tung-loai-be-mat\">\u1ee8ng d\u1ee5ng khuy\u1ebfn ngh\u1ecb theo t\u1eebng lo\u1ea1i b\u1ec1 m\u1eb7t<\/a><\/li>\n<li><a href=\"#toc-6-cach-chon-nhanh-theo-bai-toan-thuc-te\">C\u00e1ch ch\u1ecdn nhanh theo b\u00e0i to\u00e1n th\u1ef1c t\u1ebf<\/a><\/li>\n<li><a href=\"#toc-7-tieu-chuan-chung-chi-va-kiem-soat-chat-luong\">Ti\u00eau chu\u1ea9n, ch\u1ee9ng ch\u1ec9 v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng<\/a><\/li>\n<li><a href=\"#toc-8-luu-y-gia-cong-va-bao-quan-de-giu-be-mat\">L\u01b0u \u00fd gia c\u00f4ng v\u00e0 b\u1ea3o qu\u1ea3n \u0111\u1ec3 gi\u1eef b\u1ec1 m\u1eb7t<\/a><\/li>\n<li><a href=\"#toc-9-tinh-nhanh-khoi-luong-va-chieu-dai-cuon\">T\u00ednh nhanh kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 chi\u1ec1u d\u00e0i cu\u1ed9n<\/a><\/li>\n<li><a href=\"#toc-10-cac-loi-be-mat-thuong-gap-va-cach-tranh\">C\u00e1c l\u1ed7i b\u1ec1 m\u1eb7t th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch tr\u00e1nh<\/a><\/li>\n<li><a href=\"#toc-11-gia-va-tong-chi-phi-so-huu-tco\">Gi\u00e1 v\u00e0 t\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu (TCO)<\/a><\/li>\n<li><a href=\"#toc-12-cau-hoi-thuong-gap\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\n<li><a href=\"#toc-13-ket-luan-chon-dung-be-mat-de-toi-uu-hieu-nang-chi-\">K\u1ebft lu\u1eadn: Ch\u1ecdn \u0111\u00fang b\u1ec1 m\u1eb7t \u0111\u1ec3 t\u1ed1i \u01b0u hi\u1ec7u n\u0103ng \u2013 chi ph\u00ed<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Inox cu\u1ed9n l\u00e0 nh\u00f3m s\u1ea3n ph\u1ea9m c\u1ed1t l\u00f5i trong chu\u1ed7i v\u1eadt t\u01b0 inox (t\u1ea5m, cu\u1ed9n, \u1ed1ng, h\u1ed9p, thanh), chi ph\u1ed1i tr\u1ef1c ti\u1ebfp \u0111\u1ebfn th\u1ea9m m\u1ef9, gia c\u00f4ng v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a th\u00e0nh ph\u1ea9m. B\u00e0i vi\u1ebft n\u00e0y \u0111i th\u1eb3ng v\u00e0o c\u00e2u h\u1ecfi l\u1edbn: s\u1ef1 kh\u00e1c bi\u1ec7t c\u01a1 b\u1ea3n gi\u1eefa inox cu\u1ed9n c\u00e1n n\u00f3ng (No.1) v\u00e0 c\u00e1n ngu\u1ed9i (2B, BA) l\u00e0 g\u00ec, n\u00ean ch\u1ecdn lo\u1ea1i n\u00e0o cho t\u1eebng \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p t\u1ea1i Vi\u1ec7t Nam?<\/p>\n<h2 id=\"toc-0-dinh-nghia-chuan-ve-be-mat-no1-2b-ba\">\u0110\u1ecbnh ngh\u0129a chu\u1ea9n v\u1ec1 b\u1ec1 m\u1eb7t No.1, 2B, BA<\/h2>\n<p>&#8211; No.1 (HR, Hot Rolled, Annealed &#038; Pickled): Th\u00e9p kh\u00f4ng g\u1ec9 c\u00e1n n\u00f3ng, sau \u0111\u00f3 \u1ee7 v\u00e0 t\u1ea9y g\u1ec9 (descaled\/pickled). B\u1ec1 m\u1eb7t x\u00e1m m\u1edd, th\u00f4, c\u00f3 v\u1ebft c\u00e1n \u0111\u1eb7c tr\u01b0ng. Tham chi\u1ebfu ti\u00eau chu\u1ea9n ASTM A480\/A480M (Surface No.1).<br \/>\n&#8211; 2B (CR, Cold Rolled, Annealed, Pickled &#038; Skin-Passed): C\u00e1n ngu\u1ed9i nhi\u1ec1u pass \u0111\u1ebfn chi\u1ec1u d\u00e0y y\u00eau c\u1ea7u, \u1ee7 \u2013 t\u1ea9y g\u1ec9, sau \u0111\u00f3 c\u00e1n tinh (skin-pass) t\u1ea1o b\u1ec1 m\u1eb7t m\u1edd m\u1ecbn \u0111\u1ed3ng nh\u1ea5t. Tham chi\u1ebfu ASTM A480 (Finish 2B).<br \/>\n&#8211; BA (Bright Annealed): C\u00e1n ngu\u1ed9i, sau \u0111\u00f3 \u1ee7 s\u00e1ng trong m\u00f4i tr\u01b0\u1eddng b\u1ea3o v\u1ec7 (H2\/N2-H2), l\u00e0m ngu\u1ed9i trong l\u00f2 k\u00edn t\u1ea1o b\u1ec1 m\u1eb7t s\u00e1ng b\u00f3ng, ph\u1ea3n x\u1ea1 cao, kh\u00f4ng t\u1ea9y g\u1ec9 sau \u1ee7. Tham chi\u1ebfu ASTM A480 (Finish BA\/bright annealed).<\/p>\n<h2 id=\"toc-1-quy-trinh-san-xuat-vi-sao-be-mat-va-dung-sai-khac-\">Quy tr\u00ecnh s\u1ea3n xu\u1ea5t: v\u00ec sao b\u1ec1 m\u1eb7t v\u00e0 dung sai kh\u00e1c nhau?<\/h2>\n<h3>C\u00e1n n\u00f3ng No.1<\/h3>\n<p>&#8211; Nung ph\u00f4i \u2192 c\u00e1n n\u00f3ng \u1edf ~1100\u20131250\u00b0C \u2192 c\u00e1n cu\u1ed9n \u2192 \u1ee7 \u2192 t\u1ea9y g\u1ec9.<br \/>\n&#8211; \u0110\u1eb7c \u0111i\u1ec3m: l\u1edbp scale oxy h\u00f3a \u0111\u01b0\u1ee3c t\u1ea9y b\u1ecf, nh\u01b0ng d\u1ea5u v\u1ebft c\u00e1n v\u00e0 \u0111\u1ed9 nh\u00e1m cao v\u1eabn c\u00f2n. \u0110\u1ed9 ph\u1eb3ng\/dung sai \u0111\u1ed9 d\u00e0y l\u1ecfng h\u01a1n c\u00e1n ngu\u1ed9i.<\/p>\n<h3>C\u00e1n ngu\u1ed9i 2B<\/h3>\n<p>&#8211; C\u00e1n n\u00f3ng s\u01a1 c\u1ea5p \u2192 t\u1ea9y g\u1ec9 \u2192 c\u00e1n ngu\u1ed9i gi\u1ea3m \u0111\u1ed9 d\u00e0y (th\u01b0\u1eddng >60%) \u2192 \u1ee7 \u2192 t\u1ea9y g\u1ec9 \u2192 skin-pass nh\u1eb9.<br \/>\n&#8211; \u0110\u1eb7c \u0111i\u1ec3m: h\u1ea1t b\u1ec1 m\u1eb7t m\u1ecbn, \u0111\u1ed3ng \u0111\u1ec1u; \u0111\u1ed9 ph\u1eb3ng t\u1ed1t; dung sai ch\u1eb7t.<\/p>\n<h3>C\u00e1n ngu\u1ed9i BA<\/h3>\n<p>&#8211; C\u00e1n ngu\u1ed9i \u2192 \u1ee7 s\u00e1ng trong kh\u00ed b\u1ea3o v\u1ec7 \u2192 l\u00e0m ngu\u1ed9i trong l\u00f2 \u2192 c\u00f3 th\u1ec3 skin-pass r\u1ea5t nh\u1eb9 ho\u1eb7c kh\u00f4ng, \u0111\u1ec3 gi\u1eef \u0111\u1ed9 b\u00f3ng.<br \/>\n&#8211; \u0110\u1eb7c \u0111i\u1ec3m: b\u1ec1 m\u1eb7t s\u00e1ng nh\u01b0 g\u01b0\u01a1ng m\u1edd, ph\u1ea3n x\u1ea1 cao; c\u1ef1c k\u1ef3 nh\u1ea1y x\u01b0\u1edbc; \u0111\u00f2i h\u1ecfi \u0111\u00f3ng g\u00f3i v\u00e0 thao t\u00e1c s\u1ea1ch.<\/p>\n<h2 id=\"toc-2-thong-so-ky-thuat-dien-hinh-tai-thi-truong-viet-na\">Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111i\u1ec3n h\u00ecnh t\u1ea1i th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam<\/h2>\n<p>&#8211; Chi\u1ec1u d\u00e0y (tham kh\u1ea3o):<br \/>\n  &#8211; No.1: 3.0\u201314.0 mm (c\u00f3 th\u1ec3 t\u1edbi 20 mm t\u00f9y nh\u00e0 m\u00e1y).<br \/>\n  &#8211; 2B: 0.30\u20133.0 mm (ph\u1ed5 bi\u1ebfn: 0.5\u20132.0 mm).<br \/>\n  &#8211; BA: 0.30\u20132.0 mm (ph\u1ed5 bi\u1ebfn: 0.4\u20131.5 mm).<br \/>\n&#8211; Kh\u1ed5 r\u1ed9ng cu\u1ed9n: 1000 \/ 1219 (4 feet) \/ 1500 mm (m\u1ed9t s\u1ed1 nh\u00e0 m\u00e1y c\u00f3 1800 mm).<br \/>\n&#8211; M\u00e9p cu\u1ed9n: Mill Edge (ME) ho\u1eb7c Slit Edge (SE). BA th\u01b0\u1eddng d\u00f9ng SE \u0111\u1ec3 \u0111\u1eb9p m\u00e9p.<br \/>\n&#8211; \u0110\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t (tham kh\u1ea3o, Ra):<br \/>\n  &#8211; No.1: ~3.2\u20137.5 \u03bcm.<br \/>\n  &#8211; 2B: ~0.20\u20130.50 \u03bcm.<br \/>\n  &#8211; BA: ~0.05\u20130.10 \u03bcm.<br \/>\n&#8211; Dung sai \u0111\u1ed9 d\u00e0y\/\u0111\u1ed9 ph\u1eb3ng: theo ASTM A480\/A480M, JIS G4304 (HR plate\/strip) v\u00e0 JIS G4305 (CR strip). 2B\/BA c\u00f3 dung sai ch\u1eb7t h\u01a1n HR No.1 c\u00f9ng d\u1ea3i d\u00e0y.<br \/>\n&#8211; M\u00e1c th\u00e9p ph\u1ed5 bi\u1ebfn: 201, 304\/304L, 316\/316L, 430. V\u1edbi BA, nh\u00f3m austenitic (304\/316) v\u00e0 ferritic s\u1ea1ch b\u1ec1 m\u1eb7t (430BA) th\u00f4ng d\u1ee5ng h\u01a1n.<\/p>\n<h2 id=\"toc-3-tinh-chat-co-hoc-va-he-qua-khi-gia-cong\">T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 h\u1ec7 qu\u1ea3 khi gia c\u00f4ng<\/h2>\n<p>&#8211; Sau c\u00e1n ngu\u1ed9i, v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c \u1ee7 n\u00ean c\u01a1 t\u00ednh danh ngh\u0129a c\u1ee7a 2B\/BA t\u01b0\u01a1ng \u0111\u01b0\u01a1ng c\u1ea5p \u1ee7 (annealed). V\u00ed d\u1ee5 tham kh\u1ea3o (ASTM A240):<br \/>\n  &#8211; 304\/304L: Rp0.2 \u2265 205 MPa, Rm \u2265 515 MPa, A50 \u2265 40%.<br \/>\n  &#8211; 316L: Rp0.2 \u2265 170 MPa, Rm \u2265 485 MPa, A50 \u2265 40%.<br \/>\n&#8211; Do quy tr\u00ecnh v\u00e0 \u0111\u1ed9 d\u00e0y:<br \/>\n  &#8211; No.1 th\u01b0\u1eddng d\u00e0y, \u0111\u1ed9 c\u1ee9ng c\u1ea3m nh\u1eadn cao h\u01a1n khi u\u1ed1n; \u0111\u1ed9 ph\u1eb3ng k\u00e9m h\u01a1n khi\u1ebfn ch\u1ea5n\/u\u1ed1n c\u1ea7n ch\u00e0y c\u1ed1i \u201cd\u1ec5 tha th\u1ee9\u201d h\u01a1n.<br \/>\n  &#8211; 2B cho d\u1eadp s\u00e2u, k\u00e9o vu\u1ed1t, c\u1eaft laser \u1ed5n \u0111\u1ecbnh nh\u1edd b\u1ec1 m\u1eb7t m\u1ecbn v\u00e0 \u0111\u1ed9 d\u00e0y \u0111\u1ed3ng \u0111\u1ec1u; c\u00f3 ph\u00e2n h\u1ea1ng DDQ cho d\u1eadp s\u00e2u.<br \/>\n  &#8211; BA c\u00f3 b\u1ec1 m\u1eb7t r\u1ea5t \u0111\u1eb9p nh\u01b0ng nh\u1ea1y x\u01b0\u1edbc, khi d\u1eadp c\u1ea7n film b\u1ea3o v\u1ec7 v\u00e0 b\u1ec1 m\u1eb7t khu\u00f4n s\u1ea1ch; \u0111\u1ed9 ph\u1ea3n x\u1ea1 cao c\u00f3 th\u1ec3 g\u00e2y l\u1ed7i \u201c\u0111\u1ea7u m\u00e8o\u201d n\u1ebfu bavia ch\u1ea1m b\u1ec1 m\u1eb7t khi cu\u1ed9n\/g\u1ee1.<\/p>\n<h2 id=\"toc-4-so-sanh-trong-diem-no1-vs-2b-vs-ba\">So s\u00e1nh tr\u1ecdng \u0111i\u1ec3m: No.1 vs 2B vs BA<\/h2>\n<p>&#8211; B\u1ec1 m\u1eb7t\/Th\u1ea9m m\u1ef9: BA s\u00e1ng b\u00f3ng > 2B m\u1edd m\u1ecbn > No.1 th\u00f4, x\u00e1m.<br \/>\n&#8211; \u0110\u1ed9 ph\u1eb3ng &#038; dung sai: 2B \u2248 BA (ch\u1eb7t, \u1ed5n \u0111\u1ecbnh) > No.1.<br \/>\n&#8211; T\u00ednh gia c\u00f4ng:<br \/>\n  &#8211; C\u1eaft laser\/plasma: 2B\/BA cho m\u00e9p c\u1eaft \u0111\u1eb9p h\u01a1n; No.1 c\u1ea7n c\u00f4ng su\u1ea5t cao h\u01a1n v\u00e0 d\u1ec5 bavia.<br \/>\n  &#8211; U\u1ed1n\/D\u1eadp: 2B th\u00e2n thi\u1ec7n h\u01a1n; BA y\u00eau c\u1ea7u b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t k\u1ef9; No.1 ph\u00f9 h\u1ee3p u\u1ed1n \u0111\u01a1n gi\u1ea3n, k\u1ebft c\u1ea5u.<br \/>\n  &#8211; H\u00e0n: T\u1ea5t c\u1ea3 h\u00e0n t\u1ed1t (304\/316). BA sau h\u00e0n v\u00f9ng \u1ea3nh h\u01b0\u1edfng nhi\u1ec7t s\u1ebd x\u1ec9n m\u00e0u; n\u1ebfu pickling s\u1ebd l\u00e0m m\u1ea5t \u0111\u1ed9 b\u00f3ng, n\u00ean ki\u1ec3m so\u00e1t nhi\u1ec7t v\u00e0 th\u1ee5 \u0111\u1ed9ng h\u00f3a nh\u1eb9 thay v\u00ec t\u1ea9y m\u1ea1nh.<br \/>\n&#8211; Chi ph\u00ed: No.1 th\u01b0\u1eddng th\u1ea5p nh\u1ea5t\/kg; 2B cao h\u01a1n; BA cao nh\u1ea5t do ki\u1ec3m so\u00e1t b\u1ec1 m\u1eb7t v\u00e0 \u0111\u00f3ng g\u00f3i. Tuy nhi\u00ean t\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu ph\u1ee5 thu\u1ed9c ho\u00e0n thi\u1ec7n sau gia c\u00f4ng (\u0111\u00e1nh b\u00f3ng, phun bi, hairline, ph\u1ee7 film). Nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p ch\u1ecdn 2B\/BA ti\u1ebft ki\u1ec7m chi ph\u00ed ho\u00e0n thi\u1ec7n.<\/p>\n<h2 id=\"toc-5-ung-dung-khuyen-nghi-theo-tung-loai-be-mat\">\u1ee8ng d\u1ee5ng khuy\u1ebfn ngh\u1ecb theo t\u1eebng lo\u1ea1i b\u1ec1 m\u1eb7t<\/h2>\n<p>&#8211; No.1 (HR):<br \/>\n  &#8211; K\u1ebft c\u1ea5u th\u00e9p kh\u00f4ng g\u1ec9, d\u1ea7m khung, chi ti\u1ebft ch\u1ecbu l\u1ef1c.<br \/>\n  &#8211; B\u1ed3n b\u1ec3 l\u1edbn, \u0111\u00f3ng t\u00e0u, x\u1eed l\u00fd n\u01b0\u1edbc\/ho\u00e1 ch\u1ea5t, b\u1ec1 m\u1eb7t kh\u00f4ng l\u1ed9 ngo\u00e0i.<br \/>\n  &#8211; T\u1ea5m s\u00e0n c\u00f4ng nghi\u1ec7p, n\u1eafp h\u1ed1 ga inox, m\u1eb7t b\u00edch, b\u1ea3n m\u00e3.<br \/>\n&#8211; 2B (CR):<br \/>\n  &#8211; Thi\u1ebft b\u1ecb gia d\u1ee5ng, n\u1ed9i th\u1ea5t c\u00f4ng nghi\u1ec7p, v\u1ecf m\u00e1y, t\u1ee7 \u0111i\u1ec7n.<br \/>\n  &#8211; Thi\u1ebft b\u1ecb th\u1ef1c ph\u1ea9m, d\u01b0\u1ee3c, F&#038;B c\u1ea7n v\u1ec7 sinh nh\u01b0ng kh\u00f4ng y\u00eau c\u1ea7u \u201cg\u01b0\u01a1ng\u201d.<br \/>\n  &#8211; Chi ti\u1ebft d\u1eadp k\u00e9o, ch\u1ea5n \u0111\u1ecbnh h\u00ecnh, \u1ed1ng h\u00e0n trang tr\u00ed m\u1edd, n\u1ec1n \u0111\u00e1nh x\u01b0\u1edbc hairline (#4).<br \/>\n&#8211; BA (CR \u2013 Bright):<br \/>\n  &#8211; Thang m\u00e1y, n\u1ed9i th\u1ea5t cao c\u1ea5p, trang tr\u00ed, \u1ed1p t\u01b0\u1eddng, c\u1eeda, ch\u1ec9 n\u1eb9p.<br \/>\n  &#8211; Linh ki\u1ec7n y t\u1ebf, F&#038;B y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t tr\u01a1n l\u00e1ng v\u1ec7 sinh cao.<br \/>\n  &#8211; N\u1ec1n \u0111\u1ec3 \u0111\u00e1nh b\u00f3ng g\u01b0\u01a1ng #8; chi ti\u1ebft c\u1ea7n ph\u1ea3n x\u1ea1 v\u00e0 th\u1ea9m m\u1ef9 cao.<\/p>\n<h2 id=\"toc-6-cach-chon-nhanh-theo-bai-toan-thuc-te\">C\u00e1ch ch\u1ecdn nhanh theo b\u00e0i to\u00e1n th\u1ef1c t\u1ebf<\/h2>\n<p>&#8211; C\u1ea7n b\u1ec1 m\u1eb7t \u0111\u1eb9p, h\u1ea1n ch\u1ebf \u0111\u00e1nh b\u00f3ng sau gia c\u00f4ng: ch\u1ecdn BA (ph\u1ee7 film PVC 1 m\u1eb7t\/2 m\u1eb7t).<br \/>\n&#8211; D\u1eadp k\u00e9o s\u00e2u, gia c\u00f4ng h\u00e0ng lo\u1ea1t, c\u00e2n b\u1eb1ng chi ph\u00ed \u2013 th\u1ea9m m\u1ef9: 2B (\u01b0u ti\u00ean 304 DDQ n\u1ebfu k\u00e9o s\u00e2u).<br \/>\n&#8211; K\u1ebft c\u1ea5u d\u00e0y, kh\u00f4ng l\u1ed9 m\u1eb7t ho\u1eb7c s\u1ebd phun bi\/s\u01a1n ph\u1ee7: No.1.<br \/>\n&#8211; M\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n cao (ven bi\u1ec3n, clo): \u01b0u ti\u00ean 316L d\u00f9 l\u00e0 2B hay BA; No.1 cho ph\u1ea7n kh\u00f4ng l\u1ed9 ngo\u00e0i.<br \/>\n&#8211; C\u1ea7n \u0111\u00e1nh x\u01b0\u1edbc hairline: xu\u1ea5t ph\u00e1t t\u1eeb 2B (\u1ed5n \u0111\u1ecbnh qu\u1ef9 \u0111\u1ea1o x\u01b0\u1edbc), c\u00f3 film b\u1ea3o v\u1ec7.<\/p>\n<h2 id=\"toc-7-tieu-chuan-chung-chi-va-kiem-soat-chat-luong\">Ti\u00eau chu\u1ea9n, ch\u1ee9ng ch\u1ec9 v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng<\/h2>\n<p>&#8211; Ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m: ASTM A240\/A480 (t\u1ea5m\/cu\u1ed9n), JIS G4304 (HR), JIS G4305 (CR), EN 10088 (EU).<br \/>\n&#8211; Ki\u1ec3m tra khi nh\u1eadn h\u00e0ng:<br \/>\n  &#8211; Ch\u1ee9ng ch\u1ec9 Mill Test Certificate (EN 10204 3.1).<br \/>\n  &#8211; \u0110o chi\u1ec1u d\u00e0y, \u0111\u1ed9 ph\u1eb3ng, ki\u1ec3m tra m\u00e9p, \u0111\u1ed9 s\u1ea1ch b\u1ec1 m\u1eb7t, \u0111\u1ed9 ph\u1ea3n x\u1ea1 (v\u1edbi BA).<br \/>\n  &#8211; Test PMI (x\u00e1c \u0111\u1ecbnh m\u00e1c 201\/304\/316\/430).<br \/>\n  &#8211; Film b\u1ea3o v\u1ec7 c\u00f2n nguy\u00ean v\u1eb9n v\u1edbi BA\/2B \u0111\u00e1nh x\u01b0\u1edbc.<\/p>\n<h2 id=\"toc-8-luu-y-gia-cong-va-bao-quan-de-giu-be-mat\">L\u01b0u \u00fd gia c\u00f4ng v\u00e0 b\u1ea3o qu\u1ea3n \u0111\u1ec3 gi\u1eef b\u1ec1 m\u1eb7t<\/h2>\n<p>&#8211; BA\/2B: d\u00f9ng g\u0103ng tay s\u1ea1ch, t\u1ea5m l\u00f3t m\u1ec1m; kh\u00f4ng tr\u01b0\u1ee3t k\u00e9o b\u1ec1 m\u1eb7t; che ph\u1ee7 khi h\u00e0n\/m\u00e0i g\u1ea7n \u0111\u00f3 \u0111\u1ec3 tr\u00e1nh x\u1ec9 b\u1eafn.<br \/>\n&#8211; No.1: c\u00f3 th\u1ec3 phun bi\/\u0111\u00e1nh th\u00f4 tr\u01b0\u1edbc khi s\u01a1n ho\u1eb7c ph\u1ee7; l\u01b0u \u00fd lo\u1ea1i b\u1ecf scale c\u00f2n l\u1ea1i \u1edf m\u00e9p.<br \/>\n&#8211; Kho b\u00e3i: kh\u00f4 r\u00e1o, tr\u00e1nh n\u01b0\u1edbc m\u01b0a\/n\u01b0\u1edbc bi\u1ec3n; k\u00ea \u0111\u1ec7m g\u1ed7\/nh\u1ef1a; kh\u00f4ng x\u1ebfp ch\u1ed3ng g\u00e2y in v\u1ebft.<br \/>\n&#8211; H\u00e0n BA: back-purge kh\u00ed tr\u01a1 khi h\u00e0n TIG \u0111\u1ec3 h\u1ea1n ch\u1ebf x\u1ec9n m\u1eb7t sau; x\u1eed l\u00fd th\u1ee5 \u0111\u1ed9ng h\u00f3a b\u1eb1ng axit nh\u1eb9\/gel kh\u00f4ng l\u00e0m m\u1edd to\u00e0n b\u1ed9 b\u1ec1 m\u1eb7t.<\/p>\n<h2 id=\"toc-9-tinh-nhanh-khoi-luong-va-chieu-dai-cuon\">T\u00ednh nhanh kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 chi\u1ec1u d\u00e0i cu\u1ed9n<\/h2>\n<p>&#8211; Kh\u1ed1i l\u01b0\u1ee3ng (kg) \u2248 7.93 \u00d7 chi\u1ec1u d\u00e0y (mm) \u00d7 kh\u1ed5 r\u1ed9ng (m) \u00d7 chi\u1ec1u d\u00e0i (m).<br \/>\n&#8211; V\u00ed d\u1ee5: Cu\u1ed9n 0.8\u00d71219 mm, d\u00e0i 1000 m \u2192 7.93 \u00d7 0.8 \u00d7 1.219 \u00d7 1000 \u2248 7,736 kg.<br \/>\n&#8211; D\u1ef1a v\u00e0o tr\u1ecdng l\u01b0\u1ee3ng th\u1ef1c t\u1ebf cu\u1ed9n, c\u00f3 th\u1ec3 suy ra chi\u1ec1u d\u00e0i \u0111\u1ec3 t\u00ednh su\u1ea5t ti\u00eau hao.<\/p>\n<h2 id=\"toc-10-cac-loi-be-mat-thuong-gap-va-cach-tranh\">C\u00e1c l\u1ed7i b\u1ec1 m\u1eb7t th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch tr\u00e1nh<\/h2>\n<p>&#8211; No.1: v\u1ebft c\u00e1n, scale t\u00e1i b\u00e1m, g\u1ec9 tr\u00e0m do l\u01b0u kho \u1ea9m \u2192 t\u1ea9y s\u1ea1ch, s\u1ea5y kh\u00f4, b\u1ecdc k\u00edn.<br \/>\n&#8211; 2B: v\u1ec7t \u201croll mark\u201d, \u0111i\u1ec3m r\u1ed7 nh\u1ecf (pitting) \u2192 ch\u1ecdn nh\u00e0 m\u00e1y uy t\u00edn, ki\u1ec3m so\u00e1t d\u1ea7u c\u00e1n v\u00e0 l\u00e0m s\u1ea1ch.<br \/>\n&#8211; BA: x\u01b0\u1edbc l\u00f4ng m\u00e8o, in v\u1ebft cu\u1ed9n, b\u1ea9n d\u1ea7u \u2192 d\u00f9ng film ch\u1ea5t l\u01b0\u1ee3ng, ch\u00e8n gi\u1ea5y ch\u1ed1ng in v\u1ebft, v\u1ec7 sinh tay m\u00e1y\/roler.<\/p>\n<h2 id=\"toc-11-gia-va-tong-chi-phi-so-huu-tco\">Gi\u00e1 v\u00e0 t\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu (TCO)<\/h2>\n<p>&#8211; \u0110\u01a1n gi\u00e1 theo kg: No.1 < 2B < BA.  \n- Nh\u01b0ng TCO ph\u1ee5 thu\u1ed9c: t\u1ec9 l\u1ec7 ph\u1ebf khi d\u1eadp, chi ph\u00ed \u0111\u00e1nh b\u00f3ng\/ph\u1ee7 sau gia c\u00f4ng, t\u1ec9 l\u1ec7 h\u00e0ng l\u1ed7i do x\u01b0\u1edbc. Nhi\u1ec1u d\u1ef1 \u00e1n n\u1ed9i th\u1ea5t ch\u1ecdn BA ngay t\u1eeb \u0111\u1ea7u \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u00f4ng \u0111o\u1ea1n \u0111\u00e1nh b\u00f3ng t\u1ed1n k\u00e9m v\u00e0 r\u1ee7i ro x\u01b0\u1edbc l\u1ea1i.\n\n\n\n<h2 id=\"toc-12-cau-hoi-thuong-gap\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<p>&#8211; 2B c\u00f3 \u0111\u00e1nh b\u00f3ng g\u01b0\u01a1ng \u0111\u01b0\u1ee3c kh\u00f4ng? C\u00f3, nh\u01b0ng c\u1ea7n quy tr\u00ecnh nhi\u1ec1u c\u1ea5p nh\u00e1m; BA l\u00e0 n\u1ec1n t\u1ed1t h\u01a1n cho g\u01b0\u01a1ng #8.<br \/>\n&#8211; BA c\u00f3 t\u1eeb t\u00ednh kh\u00f4ng? Ph\u1ee5 thu\u1ed9c m\u00e1c. 304\/316 h\u1ea7u nh\u01b0 kh\u00f4ng t\u1eeb; 430BA c\u00f3 t\u1eeb.<br \/>\n&#8211; C\u00f3 th\u1ec3 h\u00e0n BA m\u00e0 v\u1eabn gi\u1eef b\u00f3ng? R\u1ea5t kh\u00f3 \u1edf v\u00f9ng m\u1ed1i h\u00e0n; gi\u1ea3i ph\u00e1p l\u00e0 che ch\u1eafn, ki\u1ec3m so\u00e1t nhi\u1ec7t v\u00e0 \u0111\u00e1nh b\u00f3ng c\u1ee5c b\u1ed9 t\u1ed1i thi\u1ec3u.<br \/>\n&#8211; 201 BA c\u00f3 ph\u00f9 h\u1ee3p ngo\u00e0i tr\u1eddi? Kh\u00f4ng khuy\u1ebfn ngh\u1ecb \u1edf m\u00f4i tr\u01b0\u1eddng ven bi\u1ec3n\/c\u00f3 clo; 304\/316 th\u00edch h\u1ee3p h\u01a1n.<\/p>\n<h2 id=\"toc-13-ket-luan-chon-dung-be-mat-de-toi-uu-hieu-nang-chi-\">K\u1ebft lu\u1eadn: Ch\u1ecdn \u0111\u00fang b\u1ec1 m\u1eb7t \u0111\u1ec3 t\u1ed1i \u01b0u hi\u1ec7u n\u0103ng \u2013 chi ph\u00ed<\/h2>\n<p>&#8211; No.1: b\u1ec1n \u2013 kinh t\u1ebf cho k\u1ebft c\u1ea5u d\u00e0y, b\u1ec1 m\u1eb7t kh\u00f4ng l\u1ed9.<br \/>\n&#8211; 2B: c\u00e2n b\u1eb1ng t\u1ed1t gi\u1eefa th\u1ea9m m\u1ef9 \u2013 dung sai \u2013 gia c\u00f4ng, l\u00e0 l\u1ef1a ch\u1ecdn \u201cchu\u1ea9n c\u00f4ng nghi\u1ec7p\u201d cho d\u1eadp\/ch\u1ea5n.<br \/>\n&#8211; BA: gi\u1ea3i ph\u00e1p th\u1ea9m m\u1ef9 cao c\u1ea5p, n\u1ec1n cho \u0111\u00e1nh g\u01b0\u01a1ng, nh\u01b0ng c\u1ea7n qu\u1ea3n l\u00fd x\u01b0\u1edbc v\u00e0 \u0111\u00f3ng g\u00f3i nghi\u00eam ng\u1eb7t.<br \/>\nH\u00e3y c\u0103n c\u1ee9 y\u00eau c\u1ea7u th\u1ea9m m\u1ef9, ph\u01b0\u01a1ng \u00e1n gia c\u00f4ng, m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n v\u00e0 TCO \u0111\u1ec3 quy\u1ebft \u0111\u1ecbnh. Li\u00ean h\u1ec7 Inox Cuong Thinh \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n ti\u00eau chu\u1ea9n, m\u00e1c th\u00e9p v\u00e0 t\u1ed3n kho ph\u00f9 h\u1ee3p th\u1ef1c t\u1ebf thi c\u00f4ng t\u1ea1i H\u00e0 N\u1ed9i v\u00e0 mi\u1ec1n B\u1eafc.<\/p>\n<p>Li\u00ean h\u1ec7 Inox Cuong Thinh \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n s\u00e2u v\u00e0 b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t. Hotline: 0343.417.281. Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n<p>Ngu\u1ed3n tham kh\u1ea3o:<br \/>\n&#8211; ASTM A480\/A480M \u2013 Standard Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip.<br \/>\n&#8211; JIS G4304\/G4305 \u2013 Hot-rolled\/Cold-rolled Stainless Steel Plate, Sheet and Strip.<br \/>\n&#8211; Outokumpu Stainless Steel Handbook; Outokumpu Finishes datasheets.<br \/>\n&#8211; SSINA (Specialty Steel Industry of North America) \u2013 Stainless Steel Finishes.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hi\u1ec3u r\u00f5 kh\u00e1c bi\u1ec7t No.1, 2B, BA: quy tr\u00ecnh, b\u1ec1 m\u1eb7t, dung sai, \u1ee9ng d\u1ee5ng, gi\u00e1 v\u00e0 c\u00e1ch ch\u1ecdn inox cu\u1ed9n ph\u00f9 h\u1ee3p ti\u00eau chu\u1ea9n ASTM\/JIS cho d\u1ef1 \u00e1n t\u1ea1i Vi\u1ec7t Nam.<\/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-2082","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\/2082","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=2082"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2082\/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=2082"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=2082"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=2082"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}