{"id":1195,"date":"2025-10-18T00:34:13","date_gmt":"2025-10-17T17:34:13","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/mua-inox-tam-hay-inox-cuon-tieu-chi-chon-de-toi-uu-chi-phi\/"},"modified":"2025-10-18T00:34:13","modified_gmt":"2025-10-17T17:34:13","slug":"mua-inox-tam-hay-inox-cuon-tieu-chi-chon-de-toi-uu-chi-phi","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/mua-inox-tam-hay-inox-cuon-tieu-chi-chon-de-toi-uu-chi-phi\/","title":{"rendered":"Mua inox t\u1ea5m hay inox cu\u1ed9n? Ti\u00eau ch\u00ed ch\u1ecdn \u0111\u1ec3 t\u1ed1i \u01b0u chi ph\u00ed"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-inox-tam-va-inox-cuon-khac-gi-o-thuc-te-san-xuat\">Inox t\u1ea5m v\u00e0 inox cu\u1ed9n: kh\u00e1c g\u00ec \u1edf th\u1ef1c t\u1ebf s\u1ea3n xu\u1ea5t?<\/a><\/li>\n<li><a href=\"#toc-1-chi-phi-chiu-anh-huong-boi-nhung-bien-so-nao\">Chi ph\u00ed ch\u1ecbu \u1ea3nh h\u01b0\u1edfng b\u1edfi nh\u1eefng bi\u1ebfn s\u1ed1 n\u00e0o?<\/a><\/li>\n<li><a href=\"#toc-2-khi-nao-nen-chon-inox-cuon-de-toi-uu-chi-phi\">Khi n\u00e0o n\u00ean ch\u1ecdn inox cu\u1ed9n \u0111\u1ec3 t\u1ed1i \u01b0u chi ph\u00ed<\/a><\/li>\n<li><a href=\"#toc-3-khi-nao-nen-chon-inox-tam-de-toi-uu-chi-phi\">Khi n\u00e0o n\u00ean ch\u1ecdn inox t\u1ea5m \u0111\u1ec3 t\u1ed1i \u01b0u chi ph\u00ed<\/a><\/li>\n<li><a href=\"#toc-4-bai-toan-hoa-von-break-even-giua-cuon-va-tam\">B\u00e0i to\u00e1n h\u00f2a v\u1ed1n (break-even) gi\u1eefa cu\u1ed9n v\u00e0 t\u1ea5m<\/a><\/li>\n<li><a href=\"#toc-5-anh-huong-cua-cong-nghe-gia-cong-den-lua-chon\">\u1ea2nh h\u01b0\u1edfng c\u1ee7a c\u00f4ng ngh\u1ec7 gia c\u00f4ng \u0111\u1ebfn l\u1ef1a ch\u1ecdn<\/a><\/li>\n<li><a href=\"#toc-6-logistics-ton-kho-va-nguon-hang-tai-ha-noi\">Logistics, t\u1ed3n kho v\u00e0 ngu\u1ed3n h\u00e0ng t\u1ea1i H\u00e0 N\u1ed9i<\/a><\/li>\n<li><a href=\"#toc-7-quy-trinh-7-buoc-ra-quyet-dinh\">Quy tr\u00ecnh 7 b\u01b0\u1edbc ra quy\u1ebft \u0111\u1ecbnh<\/a><\/li>\n<li><a href=\"#toc-8-mot-so-luu-y-thuc-hanh-de-toi-uu-chi-phi\">M\u1ed9t s\u1ed1 l\u01b0u \u00fd th\u1ef1c h\u00e0nh \u0111\u1ec3 t\u1ed1i \u01b0u chi ph\u00ed<\/a><\/li>\n<li><a href=\"#toc-9-ket-luan-chon-tam-hay-cuon-de-re-nhat\">K\u1ebft lu\u1eadn: ch\u1ecdn t\u1ea5m hay cu\u1ed9n \u0111\u1ec3 r\u1ebb nh\u1ea5t?<\/a><\/li>\n<\/ul>\n<\/div>\n<p>L\u1ef1a ch\u1ecdn gi\u1eefa inox t\u1ea5m v\u00e0 inox cu\u1ed9n l\u00e0 quy\u1ebft \u0111\u1ecbnh \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn gi\u00e1 th\u00e0nh, n\u0103ng su\u1ea5t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a s\u1ea3n ph\u1ea9m \u0111\u1ea7u ra. Trong b\u1ee9c tranh t\u1ed5ng th\u1ec3 v\u1ec1 c\u00e1c d\u00f2ng inox (t\u1ea5m, cu\u1ed9n, \u1ed1ng, h\u1ed9p, thanh \u0111\u1eb7c), t\u1ea5m v\u00e0 cu\u1ed9n l\u00e0 hai \u0111\u1ecbnh d\u1ea1ng g\u1ed1c cho h\u1ea7u h\u1ebft ho\u1ea1t \u0111\u1ed9ng gia c\u00f4ng kim lo\u1ea1i t\u1ea5m. B\u00e0i vi\u1ebft n\u00e0y \u0111i th\u1eb3ng v\u00e0o c\u00e2u h\u1ecfi: khi n\u00e0o n\u00ean mua inox t\u1ea5m, khi n\u00e0o n\u00ean mua inox cu\u1ed9n \u0111\u1ec3 t\u1ed1i \u01b0u chi ph\u00ed trong \u0111i\u1ec1u ki\u1ec7n s\u1ea3n xu\u1ea5t t\u1ea1i Vi\u1ec7t Nam, \u0111\u1eb7c bi\u1ec7t khu v\u1ef1c H\u00e0 N\u1ed9i.<\/p>\n<h2 id=\"toc-0-inox-tam-va-inox-cuon-khac-gi-o-thuc-te-san-xuat\">Inox t\u1ea5m v\u00e0 inox cu\u1ed9n: kh\u00e1c g\u00ec \u1edf th\u1ef1c t\u1ebf s\u1ea3n xu\u1ea5t?<\/h2>\n<p>&#8211; Inox cu\u1ed9n (coil): cu\u1ed9n b\u0103ng th\u00e9p kh\u00f4ng g\u1ec9, ch\u1ee7 y\u1ebfu c\u00e1n ngu\u1ed9i (0.3\u20133.0 mm), m\u1ed9t s\u1ed1 lo\u1ea1i c\u00e1n n\u00f3ng d\u00e0y h\u01a1n (3\u20138 mm). Kh\u1ed5 cu\u1ed9n ph\u1ed5 bi\u1ebfn: 1,000; 1,219 (4 ft); 1,250; 1,500 mm. Tr\u1ecdng l\u01b0\u1ee3ng cu\u1ed9n th\u01b0\u1eddng 3\u20137 t\u1ea5n\/cu\u1ed9n (c\u0169ng c\u00f3 cu\u1ed9n nh\u1ecf 1\u20132 t\u1ea5n theo y\u00eau c\u1ea7u).<br \/>\n&#8211; Inox t\u1ea5m (sheet\/plate): c\u1eaft s\u1eb5n theo quy c\u00e1ch, ph\u1eb3ng. K\u00edch th\u01b0\u1edbc th\u00f4ng d\u1ee5ng: 1,219\u00d72,438 (4\u00d78 ft), 1,219\u00d73,048 (4\u00d710 ft), 1,500\u00d73,000 mm; d\u1ea3i \u0111\u1ed9 d\u00e0y r\u1ed9ng h\u01a1n: c\u00e1n ngu\u1ed9i 0.3\u20133.0 mm, c\u00e1n n\u00f3ng\/plate 3\u201350 mm.<\/p>\n<p>B\u1ec1 m\u1eb7t\/m\u00e1c ph\u1ed5 bi\u1ebfn:<br \/>\n&#8211; M\u00e1c: 201, 304\/304L, 316\/316L, 430.<br \/>\n&#8211; B\u1ec1 m\u1eb7t: 2B (CR m\u1edd), BA (b\u00f3ng \u1ee7 g\u01b0\u01a1ng), No.1 (HR \u0111en), HL (hairline), No.4 (satin). C\u00f3 th\u1ec3 d\u00e1n m\u00e0ng b\u1ea3o v\u1ec7 PE\/PVC (m\u1ed9t ho\u1eb7c hai m\u1eb7t) t\u00f9y y\u00eau c\u1ea7u gia c\u00f4ng b\u1ec1 m\u1eb7t.<\/p>\n<p>Chu\u1ea9n k\u1ef9 thu\u1eadt &#038; dung sai:<br \/>\n&#8211; Ti\u00eau chu\u1ea9n tham chi\u1ebfu: ASTM A240\/A480, JIS G4304 (t\u1ea5m HR), JIS G4305 (t\u1ea5m\/coil CR).<br \/>\n&#8211; Coil c\u00f3 r\u1ee7i ro bi\u1ebfn d\u1ea1ng h\u00ecnh h\u1ecdc (camber, edge wave, center buckle). T\u1ea5m th\u00e0nh ph\u1ea9m \u0111\u00e3 \u0111\u01b0\u1ee3c n\u1eafn ph\u1eb3ng n\u00ean \u1ed5n \u0111\u1ecbnh h\u01a1n cho c\u1eaft laser\/b\u00e0n ph\u1eb3ng.<\/p>\n<h2 id=\"toc-1-chi-phi-chiu-anh-huong-boi-nhung-bien-so-nao\">Chi ph\u00ed ch\u1ecbu \u1ea3nh h\u01b0\u1edfng b\u1edfi nh\u1eefng bi\u1ebfn s\u1ed1 n\u00e0o?<\/h2>\n<p>1) Gi\u00e1 mua\/kg:<br \/>\n&#8211; C\u00f9ng m\u00e1c, c\u00f9ng b\u1ec1 m\u1eb7t, inox cu\u1ed9n th\u01b0\u1eddng r\u1ebb h\u01a1n t\u1ea5m do \u00edt kh\u00e2u \u0111\u00f3ng g\u00f3i\/c\u1eaft quy c\u00e1ch. Ch\u00eanh l\u1ec7ch th\u1ef1c t\u1ebf th\u01b0\u1eddng 0.3\u20131.0% (dao \u0111\u1ed9ng theo th\u1ecb tr\u01b0\u1eddng).<br \/>\n2) Chi ph\u00ed gia c\u00f4ng ph\u1ee5 tr\u1ee3:<br \/>\n&#8211; V\u1edbi cu\u1ed9n: decoiling + leveling (c\u1eaft cu\u1ed9n th\u00e0nh t\u1ea5m), slitting (x\u1ebb b\u0103ng), c\u1eaft\/\u0111\u1ed9t d\u1eadp. T\u00f9y d\u1ecbch v\u1ee5, t\u1ed5ng c\u00f3 th\u1ec3 ~300\u20131,200 VND\/kg (tham kh\u1ea3o) ho\u1eb7c t\u00ednh theo m2\/\u0111\u01b0\u1eddng c\u1eaft.<br \/>\n&#8211; V\u1edbi t\u1ea5m: th\u01b0\u1eddng ch\u1ec9 ph\u00e1t sinh c\u1eaft (laser, ch\u1ea5n, d\u1eadp) \u2013 kh\u00f4ng c\u1ea7n decoiling.<br \/>\n3) T\u1ef7 l\u1ec7 hao h\u1ee5t v\u1eadt li\u1ec7u (yield loss):<br \/>\n&#8211; Ph\u1ee5 thu\u1ed9c t\u1ed1i \u01b0u x\u1ebfp h\u00ecnh v\u00e0 b\u1ec1 r\u1ed9ng nguy\u00ean li\u1ec7u. Cu\u1ed9n c\u00f3 th\u1ec3 \u0111\u1eb7t kh\u1ed5 b\u1ec1 r\u1ed9ng theo chi ti\u1ebft \u0111\u1ec3 gi\u1ea3m scrap \u0111\u00e1ng k\u1ec3; t\u1ea5m quy c\u00e1ch c\u1ed1 \u0111\u1ecbnh n\u00ean scrap kh\u00f3 t\u1ed1i \u01b0u khi chi ti\u1ebft \u201cl\u1ec7ch kh\u1ed5\u201d.<br \/>\n4) Logistics v\u00e0 an to\u00e0n:<br \/>\n&#8211; Cu\u1ed9n c\u1ea7n c\u1ea9u\/C-hook\/xe n\u00e2ng chuy\u00ean d\u1ee5ng, gi\u00e1 k\u00ea cu\u1ed9n; t\u1ea5m d\u1ec5 b\u1ed1c x\u1ebfp h\u01a1n cho x\u01b0\u1edfng nh\u1ecf. Ph\u00ed v\u1eadn chuy\u1ec3n cu\u1ed9n c\u00f3 th\u1ec3 t\u1ed1i \u01b0u theo t\u1ea5n nh\u01b0ng y\u00eau c\u1ea7u h\u1ea1 t\u1ea7ng.<br \/>\n5) V\u1ed1n l\u01b0u \u0111\u1ed9ng, t\u1ed3n kho:<br \/>\n&#8211; M\u1ed9t cu\u1ed9n 4\u20136 t\u1ea5n\/kh\u1ed5\/m\u00e1c\/b\u1ec1 m\u1eb7t l\u00e0 kho\u1ea3n t\u1ed3n kho l\u1edbn. N\u1ebfu ti\u00eau th\u1ee5 ch\u1eadm, chi ph\u00ed v\u1ed1n + r\u1ee7i ro t\u1ed3n bi\u1ebfn \u0111\u1ed9ng gi\u00e1 s\u1ebd tri\u1ec7t ti\u00eau l\u1ee3i th\u1ebf gi\u00e1\/kg c\u1ee7a cu\u1ed9n.<br \/>\n6) Y\u00eau c\u1ea7u ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t &#038; ph\u1eb3ng:<br \/>\n&#8211; H\u00e0ng trang tr\u00ed\/hi\u1ec3n th\u1ecb (BA, HL, No.4) n\u00ean d\u00f9ng t\u1ea5m c\u00f3 m\u00e0ng b\u1ea3o v\u1ec7; decoiling sai chu\u1ea9n c\u00f3 th\u1ec3 t\u1ea1o v\u1ebft in, micro-scratch. Laser t\u1ed1c \u0111\u1ed9 cao y\u00eau c\u1ea7u ph\u1eb3ng t\u1ed1t; t\u1ea5m n\u1eafn ph\u1eb3ng \u0111\u1ea1t \u1ed5n \u0111\u1ecbnh h\u01a1n.<\/p>\n<h2 id=\"toc-2-khi-nao-nen-chon-inox-cuon-de-toi-uu-chi-phi\">Khi n\u00e0o n\u00ean ch\u1ecdn inox cu\u1ed9n \u0111\u1ec3 t\u1ed1i \u01b0u chi ph\u00ed<\/h2>\n<p>Ch\u1ecdn cu\u1ed9n n\u1ebfu b\u1ea1n c\u00f3 m\u1ed9t ho\u1eb7c nhi\u1ec1u \u0111i\u1ec1u ki\u1ec7n sau:<br \/>\n&#8211; Kh\u1ed1i l\u01b0\u1ee3ng ti\u00eau th\u1ee5 l\u1edbn, l\u1eb7p l\u1ea1i theo th\u00e1ng\/qu\u00fd (\u22652\u20133 t\u1ea5n\/thickness\/grade\/finish).<br \/>\n&#8211; Chi ti\u1ebft d\u1ea1ng d\u1ea3i\/strip ho\u1eb7c blank d\u1eadp li\u00ean t\u1ee5c; c\u1ea7n c\u1ea5p li\u1ec7u li\u00ean t\u1ee5c cho m\u00e1y d\u1eadp, m\u00e1y t\u1ea1o s\u00f3ng, roll forming.<br \/>\n&#8211; \u0110\u1ed9 d\u00e0y ch\u1ee7 y\u1ebfu \u22643.0 mm (CR), ch\u1ea5p nh\u1eadn\/ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1 ph\u1eb3ng b\u1eb1ng m\u00e1y n\u1eafn (leveler).<br \/>\n&#8211; C\u00f3 th\u1ec3 \u0111\u1eb7t x\u1ebb b\u0103ng theo b\u1ec1 r\u1ed9ng t\u1ed1i \u01b0u \u0111\u1ec3 gi\u1ea3m scrap (v\u00ed d\u1ee5 c\u1ea7n b\u0103ng 100 mm, 150 mm\u2026).<br \/>\n&#8211; B\u1ec1 m\u1eb7t kh\u00f4ng qu\u00e1 kh\u1eaft khe ho\u1eb7c c\u00f3 gi\u1ea3i ph\u00e1p m\u00e0ng b\u1ea3o v\u1ec7 + quy tr\u00ecnh decoiling \u0111\u1ea1t chu\u1ea9n.<br \/>\n&#8211; H\u1ea1 t\u1ea7ng \u0111\u1ea3m b\u1ea3o: decoiler\/leveler, gi\u00e1 k\u00ea cu\u1ed9n, c\u1ea9u\/xe n\u00e2ng, khu v\u1ef1c l\u01b0u tr\u1eef.<\/p>\n<p>L\u1ee3i \u00edch ch\u00ednh:<br \/>\n&#8211; Gi\u1ea3m gi\u00e1\/kg (nh\u1ecf) + gi\u1ea3m scrap (c\u00f3 th\u1ec3 r\u1ea5t l\u1edbn khi \u0111\u1eb7t \u0111\u00fang b\u1ec1 r\u1ed9ng) + t\u0103ng n\u0103ng su\u1ea5t c\u1ea5p li\u1ec7u.<br \/>\n&#8211; Chu\u1ed7i gia c\u00f4ng li\u00ean t\u1ee5c cho d\u1eadp\/\u0111\u00f9n\/roll forming, gi\u1ea3m th\u1eddi gian set-up theo t\u1ea5m.<\/p>\n<p>R\u1ee7i ro c\u1ea7n ki\u1ec3m so\u00e1t:<br \/>\n&#8211; \u0110\u1ed9 ph\u1eb3ng, camber; c\u1ea7n leveling ph\u00f9 h\u1ee3p v\u1edbi \u0111\u1ed9 d\u00e0y\/m\u00e1c.<br \/>\n&#8211; Tr\u1ea7y x\u01b0\u1edbc b\u1ec1 m\u1eb7t khi decoiling n\u1ebfu con l\u0103n\/gi\u01b0\u1eddng t\u1ef3 kh\u00f4ng s\u1ea1ch.<br \/>\n&#8211; V\u1ed1n b\u1ecb \u201ckh\u00f3a\u201d trong m\u1ed9t kh\u1ed5\/m\u00e1c\/b\u1ec1 m\u1eb7t n\u1ebfu nhu c\u1ea7u bi\u1ebfn \u0111\u1ed9ng.<\/p>\n<h3>V\u00ed d\u1ee5 1: D\u1ea3i b\u0103ng 100 mm, t=0.5 mm, m\u00e1c 304 2B cho u\u1ed1n\/roll forming<\/h3>\n<p>&#8211; Mua t\u1ea5m 1,219\u00d72,438 r\u1ed3i c\u1eaft d\u1ea3i: th\u01b0\u1eddng m\u1ea5t 3\u20135% scrap + nhi\u1ec1u c\u00f4ng c\u1eaft, kh\u00f3 \u0111\u1ec1u m\u00e9p.<br \/>\n&#8211; Mua cu\u1ed9n 1,219 mm, x\u1ebb b\u0103ng 100 mm: t\u1eadn d\u1ee5ng g\u1ea7n nh\u01b0 to\u00e0n b\u1ed9 b\u1ec1 r\u1ed9ng; scrap ch\u1ec9 l\u00e0 m\u00e9p c\u1eaft\/trim (~1\u20131.5%).<br \/>\n&#8211; K\u1ebft qu\u1ea3: ti\u1ebft ki\u1ec7m v\u1eadt li\u1ec7u 2\u20134% + t\u0103ng t\u1ed1c \u0111\u1ed9 c\u1ea5p li\u1ec7u; chi ph\u00ed x\u1ebb b\u0103ng nh\u1ecf h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00f4ng c\u1eaft t\u1ea5m l\u1eb7p l\u1ea1i.<\/p>\n<h2 id=\"toc-3-khi-nao-nen-chon-inox-tam-de-toi-uu-chi-phi\">Khi n\u00e0o n\u00ean ch\u1ecdn inox t\u1ea5m \u0111\u1ec3 t\u1ed1i \u01b0u chi ph\u00ed<\/h2>\n<p>Ch\u1ecdn t\u1ea5m n\u1ebfu:<br \/>\n&#8211; Gia c\u00f4ng laser\/plasma\/waterjet d\u1ea1ng nesting nhi\u1ec1u h\u00ecnh ph\u1ee9c t\u1ea1p; c\u1ea7n ph\u1eb3ng, s\u1ea1ch, t\u1ea3i t\u1ea5m t\u1ef1 \u0111\u1ed9ng.<br \/>\n&#8211; \u0110\u1ed9 d\u00e0y >3.0 mm (HR\/plate) ho\u1eb7c chi ti\u1ebft l\u1edbn \u0111\u00f2i h\u1ecfi \u0111\u1ed9 ph\u1eb3ng cao; kh\u00f4ng c\u00f3 leveler ph\u00f9 h\u1ee3p.<br \/>\n&#8211; \u0110\u01a1n h\u00e0ng v\u1eeba v\u00e0 nh\u1ecf, \u0111a d\u1ea1ng m\u00e1c\/\u0111\u1ed9 d\u00e0y\/b\u1ec1 m\u1eb7t; kh\u00f4ng mu\u1ed1n gi\u1eef t\u1ed3n kho l\u1edbn.<br \/>\n&#8211; H\u00e0ng trang tr\u00ed: BA, HL, No.4 c\u00f3 m\u00e0ng b\u1ea3o v\u1ec7; y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t A-class, h\u1ea1n ch\u1ebf m\u1ecdi r\u1ee7i ro x\u01b0\u1edbc.<br \/>\n&#8211; X\u01b0\u1edfng nh\u1ecf, h\u1ea1n ch\u1ebf c\u1ea9u\/xe n\u00e2ng chuy\u00ean d\u1ee5ng; \u01b0u ti\u00ean an to\u00e0n v\u00e0 linh ho\u1ea1t.<\/p>\n<h3>V\u00ed d\u1ee5 2: C\u1eaft laser panel 1,200\u00d72,400 mm, t=2.0 mm, b\u1ec1 m\u1eb7t HL d\u00e1n m\u00e0ng<\/h3>\n<p>&#8211; T\u1ea5m th\u00e0nh ph\u1ea9m HL c\u00f3 m\u00e0ng: ph\u1eb3ng, \u00edt r\u1ee7i ro x\u01b0\u1edbc, b\u1ed1c x\u1ebfp nhanh; ch\u1ec9 ph\u00e1t sinh chi ph\u00ed c\u1eaft laser.<br \/>\n&#8211; Cu\u1ed9n + decoiling HL: t\u0103ng r\u1ee7i ro v\u1ebft l\u0103n, c\u1ea7n m\u00e0ng + thi\u1ebft b\u1ecb t\u1ed1t; n\u1ebfu kh\u00f4ng, t\u1ef7 l\u1ec7 h\u00e0ng l\u1ed7i b\u1ec1 m\u1eb7t s\u1ebd x\u00f3a s\u1ea1ch l\u1ee3i th\u1ebf gi\u00e1\/kg c\u1ee7a cu\u1ed9n.<\/p>\n<h2 id=\"toc-4-bai-toan-hoa-von-break-even-giua-cuon-va-tam\">B\u00e0i to\u00e1n h\u00f2a v\u1ed1n (break-even) gi\u1eefa cu\u1ed9n v\u00e0 t\u1ea5m<\/h2>\n<p>C\u00e1ch t\u01b0 duy nhanh:<br \/>\n&#8211; G\u1ecdi \u0394G = ch\u00eanh gi\u00e1 mua\/kg (cu\u1ed9n r\u1ebb h\u01a1n t\u1ea5m, th\u01b0\u1eddng 0.3\u20131.0%).<br \/>\n&#8211; Cgia_cuon = chi ph\u00ed decoiling\/leveling + slitting (n\u1ebfu c\u00f3), quy \u0111\u1ed5i\/kg.<br \/>\n&#8211; Sscrap = % v\u1eadt li\u1ec7u ti\u1ebft ki\u1ec7m \u0111\u01b0\u1ee3c nh\u1edd \u0111\u1eb7t \u0111\u00fang b\u1ec1 r\u1ed9ng \u00d7 gi\u00e1 v\u1eadt li\u1ec7u\/kg.<br \/>\n&#8211; Hhandling = ch\u00eanh chi ph\u00ed thao t\u00e1c\/thi\u1ebft l\u1eadp tr\u00ean m\u1ed7i kg\/chi ti\u1ebft (cu\u1ed9n c\u1ea5p li\u1ec7u li\u00ean t\u1ee5c l\u1ee3i th\u1ebf v\u1edbi d\u1eadp).<br \/>\n&#8211; Chi ph\u00ed kh\u00e1c: r\u1ee7i ro ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t, v\u1ed1n l\u01b0u kho.<\/p>\n<p>Quy \u0111\u1ed5i theo kg, cu\u1ed9n kinh t\u1ebf khi:<br \/>\n\u0394G + Sscrap + Hhandling > Cgia_cuon + Chi ph\u00ed v\u1ed1n\/hao h\u1ee5t ch\u1ea5t l\u01b0\u1ee3ng.<\/p>\n<h3>V\u00ed d\u1ee5 s\u1ed1 3: Blank 200\u00d7300 mm, t=0.8 mm, 304 2B, s\u1ed1 l\u01b0\u1ee3ng 5,000 chi\u1ebfc<\/h3>\n<p>&#8211; Ph\u01b0\u01a1ng \u00e1n t\u1ea5m 1,219\u00d72,438: m\u1ed7i t\u1ea5m x\u1ebfp \u0111\u01b0\u1ee3c 6\u00d78 = 48 chi\u1ebfc; s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u ~96.9%. Kh\u00f4ng ph\u00ed decoiling.<br \/>\n&#8211; Ph\u01b0\u01a1ng \u00e1n cu\u1ed9n 1,219: c\u1eaft theo 200\u00d7300 li\u00ean t\u1ee5c sau leveling; s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u ~97.5% (\u00edt trim). Gi\u1ea3 s\u1eed:<br \/>\n  + Cu\u1ed9n r\u1ebb h\u01a1n 0.5% so v\u1edbi t\u1ea5m.<br \/>\n  + Decoiling + c\u1eaft bi\u00ean quy \u0111\u1ed5i ~0.4% gi\u00e1 tr\u1ecb.<br \/>\n  + L\u1ee3i \u00edch thao t\u00e1c do ch\u1ea1y li\u00ean t\u1ee5c ~0.2% gi\u00e1 tr\u1ecb.<br \/>\n  K\u1ebft: l\u1ee3i th\u1ebf r\u00f2ng \u2248 0.5 + (97.5\u201396.9)=0.6% (yield) + 0.2 \u2013 0.4 \u2248 0.9% so v\u1edbi mua t\u1ea5m.<br \/>\n&#8211; Nh\u01b0ng n\u1ebfu thu\u00ea d\u1ecbch v\u1ee5 leveling \u0111\u1eaft h\u01a1n, ho\u1eb7c kh\u1ed1i l\u01b0\u1ee3ng nh\u1ecf (\u22641 t\u1ea5n), l\u1ee3i th\u1ebf c\u00f3 th\u1ec3 \u0111\u1ea3o chi\u1ec1u.<\/p>\n<h3>V\u00ed d\u1ee5 s\u1ed1 4: \u0110\u1eb7t cu\u1ed9n b\u1ec1 r\u1ed9ng t\u00f9y ch\u1ec9nh<\/h3>\n<p>C\u1ea7n chi ti\u1ebft 290 mm b\u1ec1 r\u1ed9ng. V\u1edbi t\u1ea5m 1,219 mm, nesting \u0111\u1ec3 l\u1ea1i bi\u00ean th\u1eeba l\u1edbn; v\u1edbi cu\u1ed9n \u0111\u1eb7t x\u1ebb 1,160 mm (4\u00d7290), scrap g\u1ea7n nh\u01b0 b\u1eb1ng 0 theo b\u1ec1 r\u1ed9ng. Ch\u1ec9 ri\u00eang t\u1ed1i \u01b0u b\u1ec1 r\u1ed9ng \u0111\u00e3 ti\u1ebft ki\u1ec7m 2\u20134% nguy\u00ean li\u1ec7u, th\u01b0\u1eddng v\u01b0\u1ee3t xa chi ph\u00ed x\u1ebb b\u0103ng.<\/p>\n<h2 id=\"toc-5-anh-huong-cua-cong-nghe-gia-cong-den-lua-chon\">\u1ea2nh h\u01b0\u1edfng c\u1ee7a c\u00f4ng ngh\u1ec7 gia c\u00f4ng \u0111\u1ebfn l\u1ef1a ch\u1ecdn<\/h2>\n<p>&#8211; D\u1eadp li\u00ean ho\u00e0n\/blanking: ch\u1ecdn cu\u1ed9n. C\u1ea5p li\u1ec7u \u1ed5n \u0111\u1ecbnh, t\u1ed1c \u0111\u1ed9 cao, \u00edt d\u1eebng m\u00e1y.<br \/>\n&#8211; Roll forming\/\u1ed1ng m\u1ecfng\/h\u1ed3 quang nh\u1ecf: ch\u1ecdn cu\u1ed9n x\u1ebb b\u0103ng theo b\u1ec1 r\u1ed9ng.<br \/>\n&#8211; Ch\u1ea5n g\u1ea5p + laser: \u0111a s\u1ed1 chu\u1ed9ng t\u1ea5m do ph\u1eb3ng, d\u1ec5 x\u1ebfp h\u00ecnh, thay \u0111\u1ed5i \u0111\u01a1n h\u00e0ng nhanh.<br \/>\n&#8211; C\u1eaft b\u00f9 bi\u00ean (edge trimming) v\u00e0 y\u00eau c\u1ea7u ph\u1eb3ng: n\u1ebfu b\u1eaft bu\u1ed9c ph\u1eb3ng chu\u1ea9n laser, t\u1ea5m n\u1eafn ph\u1eb3ng s\u1eb5n th\u01b0\u1eddng hi\u1ec7u qu\u1ea3 h\u01a1n tr\u1eeb khi b\u1ea1n c\u00f3 leveler h\u1ea1ng n\u1eb7ng.<\/p>\n<h2 id=\"toc-6-logistics-ton-kho-va-nguon-hang-tai-ha-noi\">Logistics, t\u1ed3n kho v\u00e0 ngu\u1ed3n h\u00e0ng t\u1ea1i H\u00e0 N\u1ed9i<\/h2>\n<p>&#8211; Tr\u1ecdng l\u01b0\u1ee3ng &#038; b\u1ed1c x\u1ebfp:<br \/>\n  + Cu\u1ed9n 3\u20137 t\u1ea5n c\u1ea7n c\u1ea9u\/C-hook ho\u1eb7c forklift c\u00e0ng ch\u1eef C; kho ph\u1ea3i c\u00f3 gi\u00e1 k\u00ea cu\u1ed9n, s\u00e0n ch\u1ecbu t\u1ea3i.<br \/>\n  + B\u00f3 t\u1ea5m 1\u20132 t\u1ea5n d\u1ec5 b\u1ed1c x\u1ebfp b\u1eb1ng forklift\/ph\u1ea7n l\u1edbn x\u01b0\u1edfng \u0111\u1ec1u \u0111\u00e1p \u1ee9ng.<br \/>\n&#8211; L\u01b0u kho:<br \/>\n  + Cu\u1ed9n chi\u1ebfm \u00edt di\u1ec7n t\u00edch m\u1eb7t s\u00e0n theo \u0111\u01a1n v\u1ecb kg nh\u01b0ng \u0111\u00f2i h\u1ecfi k\u00ea \u0111\u1ee1 an to\u00e0n.<br \/>\n  + T\u1ea5m c\u1ea7n gi\u00e1 k\u1ec7 ph\u1eb3ng; thu\u1eadn ti\u1ec7n b\u1ed1c t\u1ea5m l\u1ebb.<br \/>\n&#8211; Th\u1eddi gian giao:<br \/>\n  + T\u1ea5m quy c\u00e1ch ph\u1ed5 bi\u1ebfn th\u01b0\u1eddng lu\u00f4n c\u00f3 s\u1eb5n.<br \/>\n  + Cu\u1ed9n y\u00eau c\u1ea7u x\u1ebb b\u0103ng\/c\u1eaft t\u1ea5m m\u1ea5t 1\u20133 ng\u00e0y; \u0111\u1eb7t cu\u1ed9n b\u1ec1 r\u1ed9ng \u0111\u1eb7c th\u00f9 nh\u1eadp kh\u1ea9u c\u00f3 th\u1ec3 6\u201310 tu\u1ea7n.<br \/>\n&#8211; Ngu\u1ed3n cung:<br \/>\n  + Inox 201\/304 c\u00e1n ngu\u1ed9i: c\u00f3 h\u00e0ng trong n\u01b0\u1edbc v\u00e0 khu v\u1ef1c; 316\/430 ch\u1ee7 y\u1ebfu nh\u1eadp kh\u1ea9u.<br \/>\n  + B\u1ec1 m\u1eb7t BA\/HL\/No.4 c\u00f3 m\u00e0ng: th\u01b0\u1eddng \u1edf d\u1ea1ng t\u1ea5m; cu\u1ed9n c\u00f3 nh\u01b0ng c\u1ea7n d\u1ecbch v\u1ee5 decoiling ph\u00f9 h\u1ee3p \u0111\u1ec3 b\u1ea3o to\u00e0n b\u1ec1 m\u1eb7t.<br \/>\n&#8211; M\u00e0ng b\u1ea3o v\u1ec7:<br \/>\n  + Ch\u1ecdn lo\u1ea1i m\u00e0ng ph\u00f9 h\u1ee3p c\u00f4ng ngh\u1ec7 c\u1eaft (fiber\/CO2) v\u00e0 nhi\u1ec7t; \u0111\u1ed9 d\u00e0y 60\u201380 \u00b5m l\u00e0 th\u00f4ng d\u1ee5ng. Ki\u1ec3m tra kh\u1ea3 n\u0103ng b\u00f3c s\u1ea1ch sau gia c\u00f4ng.<\/p>\n<h2 id=\"toc-7-quy-trinh-7-buoc-ra-quyet-dinh\">Quy tr\u00ecnh 7 b\u01b0\u1edbc ra quy\u1ebft \u0111\u1ecbnh<\/h2>\n<p>1) \u0110\u1ed9 d\u00e0y: \u22643.0 mm \u01b0u ti\u00ean cu\u1ed9n n\u1ebfu kh\u1ed1i l\u01b0\u1ee3ng \u0111\u1ee7 l\u1edbn; >3.0 mm \u01b0u ti\u00ean t\u1ea5m\/plate.<br \/>\n2) K\u00edch th\u01b0\u1edbc chi ti\u1ebft: c\u00f3 t\u1ed1i \u01b0u \u0111\u01b0\u1ee3c b\u1ec1 r\u1ed9ng theo d\u1ea3i kh\u00f4ng? N\u1ebfu c\u00f3, c\u00e2n nh\u1eafc cu\u1ed9n x\u1ebb b\u0103ng.<br \/>\n3) S\u1ea3n l\u01b0\u1ee3ng: ti\u00eau th\u1ee5 \u22652\u20133 t\u1ea5n\/th\u00e1ng cho c\u00f9ng m\u00e1c\/\u0111\u1ed9 d\u00e0y\/b\u1ec1 m\u1eb7t th\u00ec cu\u1ed9n th\u01b0\u1eddng kinh t\u1ebf h\u01a1n.<br \/>\n4) C\u00f4ng ngh\u1ec7: d\u1eadp\/roll forming \u2192 cu\u1ed9n; laser\/nesting \u0111a d\u1ea1ng \u2192 t\u1ea5m.<br \/>\n5) Dung sai ph\u1eb3ng\/b\u1ec1 m\u1eb7t: y\u00eau c\u1ea7u kh\u1eaft khe \u2192 t\u1ea5m c\u00f3 m\u00e0ng; y\u00eau c\u1ea7u trung b\u00ecnh \u2192 cu\u1ed9n v\u1edbi leveling chu\u1ea9n.<br \/>\n6) Logistics &#038; v\u1ed1n: x\u01b0\u1edfng c\u00f3 c\u1ea9u\/gi\u00e1 k\u00ea cu\u1ed9n v\u00e0 ch\u1ea5p nh\u1eadn t\u1ed3n kho l\u1edbn? N\u1ebfu kh\u00f4ng, ch\u1ecdn t\u1ea5m.<br \/>\n7) T\u1ed5ng chi ph\u00ed: \u00e1p d\u1ee5ng c\u00f4ng th\u1ee9c break-even; t\u00ednh \u0394G, Cgia_cuon, Sscrap, Hhandling, chi ph\u00ed v\u1ed1n.<\/p>\n<p>C\u00e2y quy\u1ebft \u0111\u1ecbnh nhanh:<br \/>\n&#8211; N\u1ebfu s\u1ea3n l\u01b0\u1ee3ng nh\u1ecf + nhi\u1ec1u quy c\u00e1ch + y\u00eau c\u1ea7u ph\u1eb3ng\/b\u1ec1 m\u1eb7t cao \u2192 Mua t\u1ea5m.<br \/>\n&#8211; N\u1ebfu s\u1ea3n l\u01b0\u1ee3ng l\u1edbn + d\u1eadp\/strip + c\u00f3 thi\u1ebft b\u1ecb leveling \u2192 Mua cu\u1ed9n\/x\u1ebb b\u0103ng theo b\u1ec1 r\u1ed9ng t\u1ed1i \u01b0u.<br \/>\n&#8211; N\u1ebfu \u0111\u1ee9ng gi\u1eefa: th\u1eed t\u00ednh nhanh Sscrap khi \u0111\u1eb7t b\u1ec1 r\u1ed9ng custom. N\u1ebfu ti\u1ebft ki\u1ec7m \u22651\u20132% v\u1eadt li\u1ec7u v\u00e0 b\u1ea1n c\u00f3 gi\u1ea3i ph\u00e1p leveling \u0111\u00e1ng tin c\u1eady \u2192 nghi\u00eang v\u1ec1 cu\u1ed9n; ng\u01b0\u1ee3c l\u1ea1i \u2192 t\u1ea5m.<\/p>\n<h2 id=\"toc-8-mot-so-luu-y-thuc-hanh-de-toi-uu-chi-phi\">M\u1ed9t s\u1ed1 l\u01b0u \u00fd th\u1ef1c h\u00e0nh \u0111\u1ec3 t\u1ed1i \u01b0u chi ph\u00ed<\/h2>\n<p>&#8211; \u0110\u1eb7t \u0111\u00fang b\u1ec1 r\u1ed9ng cu\u1ed9n: t\u00ednh nesting theo b\u1ec1 r\u1ed9ng cu\u1ed9n tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng; tr\u00e1nh \u201cs\u00e1t bi\u00ean\u201d g\u00e2y cong m\u00e9p khi x\u1ebb.<br \/>\n&#8211; Y\u00eau c\u1ea7u n\u1eafn ph\u1eb3ng theo \u0111\u1ed9 d\u00e0y: ch\u1ecdn d\u1ecbch v\u1ee5 leveling ph\u00f9 h\u1ee3p t\u1eebng d\u1ea3i \u0111\u1ed9 d\u00e0y\/m\u00e1c (304\/316 c\u1ee9ng h\u01a1n 201\/430).<br \/>\n&#8211; Qu\u1ea3n tr\u1ecb b\u1ec1 m\u1eb7t: v\u1edbi BA\/HL\/No.4, lu\u00f4n y\u00eau c\u1ea7u m\u00e0ng b\u1ea3o v\u1ec7; ki\u1ec3m tra s\u1ea1ch b\u1ee5i\/bi\u00ean d\u1ea1ng con l\u0103n tr\u01b0\u1edbc khi decoiling.<br \/>\n&#8211; T\u00e1ch t\u1ed3n kho theo d\u1ef1 \u00e1n: \u0111\u1eebng gom m\u1ed9t cu\u1ed9n l\u1edbn cho nhi\u1ec1u m\u00e3 h\u00e0ng n\u1ebfu r\u1ee7i ro \u201cth\u1eeba kh\u1ed5\u201d cao.<br \/>\n&#8211; Th\u1ed1ng nh\u1ea5t ti\u00eau chu\u1ea9n: tr\u00edch d\u1eabn ASTM A480\/JIS G4305 cho dung sai \u0111\u1ed9 d\u00e0y, ph\u1eb3ng, \u0111\u1ed9 cong m\u00e9p khi \u0111\u1eb7t h\u00e0ng.<\/p>\n<h2 id=\"toc-9-ket-luan-chon-tam-hay-cuon-de-re-nhat\">K\u1ebft lu\u1eadn: ch\u1ecdn t\u1ea5m hay cu\u1ed9n \u0111\u1ec3 r\u1ebb nh\u1ea5t?<\/h2>\n<p>&#8211; H\u00e3y ch\u1ecdn inox cu\u1ed9n khi b\u1ea1n s\u1ea3n xu\u1ea5t kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn, l\u1eb7p l\u1ea1i, c\u00f3 th\u1ec3 \u0111\u1eb7t\/x\u1ebb b\u1ec1 r\u1ed9ng theo chi ti\u1ebft, \u0111\u1ed9 d\u00e0y \u22643.0 mm, v\u00e0 s\u1edf h\u1eefu (ho\u1eb7c thu\u00ea) n\u0103ng l\u1ef1c decoiling\/leveling \u1ed5n \u0111\u1ecbnh. L\u1ee3i th\u1ebf \u0111\u1ebfn t\u1eeb gi\u1ea3m scrap + d\u00f2ng ch\u1ea3y c\u1ea5p li\u1ec7u li\u00ean t\u1ee5c, kh\u00f4ng ch\u1ec9 t\u1eeb ch\u00eanh gi\u00e1\/kg.<br \/>\n&#8211; H\u00e3y ch\u1ecdn inox t\u1ea5m khi b\u1ea1n c\u1ea7n ph\u1eb3ng v\u00e0 b\u1ec1 m\u1eb7t chu\u1ea9n cho laser\/trang tr\u00ed, \u0111\u1ed9 d\u00e0y >3.0 mm, \u0111\u01a1n h\u00e0ng nh\u1ecf\/\u0111a d\u1ea1ng, ho\u1eb7c h\u1ea1n ch\u1ebf v\u1ec1 logistics v\u00e0 v\u1ed1n. Trong c\u00e1c ca n\u00e0y, m\u1ecdi \u201cti\u1ebft ki\u1ec7m\u201d danh ngh\u0129a t\u1eeb cu\u1ed9n th\u01b0\u1eddng b\u1ecb tri\u1ec7t ti\u00eau b\u1edfi chi ph\u00ed ph\u1ee5 tr\u1ee3 v\u00e0 r\u1ee7i ro ch\u1ea5t l\u01b0\u1ee3ng.<br \/>\n&#8211; Ra quy\u1ebft \u0111\u1ecbnh b\u1eb1ng con s\u1ed1: t\u00ednh \u0394G (gi\u00e1), Cgia_cuon (decoiling\/x\u1ebb), Sscrap (t\u1ed1i \u01b0u b\u1ec1 r\u1ed9ng), Hhandling (n\u0103ng su\u1ea5t), v\u00e0 chi ph\u00ed v\u1ed1n. N\u1ebfu t\u1ed5ng l\u1ee3i th\u1ebf r\u00f2ng \u22651\u20132% v\u00e0 s\u1ea3n l\u01b0\u1ee3ng \u1ed5n \u0111\u1ecbnh, h\u00e3y ch\u1ecdn cu\u1ed9n; n\u1ebfu kh\u00f4ng, t\u1ea5m l\u00e0 ph\u01b0\u01a1ng \u00e1n an to\u00e0n v\u00e0 kinh t\u1ebf h\u01a1n.<\/p>\n<p>\u00c1p d\u1ee5ng \u0111\u00fang ng\u1eef c\u1ea3nh x\u01b0\u1edfng v\u00e0 d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n, quy\u1ebft \u0111\u1ecbnh s\u1ebd r\u00f5 r\u00e0ng \u2013 v\u00e0 chi ph\u00ed th\u1ef1c s\u1ef1 \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ch\u1ecdn inox t\u1ea5m hay cu\u1ed9n \u0111\u1ec3 ti\u1ebft ki\u1ec7m nh\u1ea5t? So s\u00e1nh theo kh\u1ed1i l\u01b0\u1ee3ng, \u0111\u1ed9 d\u00e0y, b\u1ec1 r\u1ed9ng, dung sai, thi\u1ebft b\u1ecb; k\u00e8m v\u00ed d\u1ee5 t\u00ednh chi ph\u00ed v\u00e0 ng\u01b0\u1ee1ng h\u00f2a v\u1ed1n.<\/p>\n","protected":false},"author":7,"featured_media":1059,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1195","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\/1195","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=1195"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1195\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1059"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1195"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1195"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}