{"id":2119,"date":"2026-06-09T00:34:04","date_gmt":"2026-06-08T17:34:04","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/uon-ong-va-hop-inox-khong-bi-mop-ban-kinh-toi-thieu-do-ga-va-quy-trinh-chuan\/"},"modified":"2026-06-09T00:34:04","modified_gmt":"2026-06-08T17:34:04","slug":"uon-ong-va-hop-inox-khong-bi-mop-ban-kinh-toi-thieu-do-ga-va-quy-trinh-chuan","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/uon-ong-va-hop-inox-khong-bi-mop-ban-kinh-toi-thieu-do-ga-va-quy-trinh-chuan\/","title":{"rendered":"U\u1ed1n \u1ed1ng v\u00e0 h\u1ed9p Inox kh\u00f4ng b\u1ecb m\u00f3p: b\u00e1n k\u00ednh t\u1ed1i thi\u1ec3u, \u0111\u1ed3 g\u00e1 v\u00e0 quy tr\u00ecnh chu\u1ea9n"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-nguyen-ly-bien-dang-khi-uon-onghop-inox\">Nguy\u00ean l\u00fd bi\u1ebfn d\u1ea1ng khi u\u1ed1n \u1ed1ng\/h\u1ed9p Inox<\/a><\/li>\n<li><a href=\"#toc-1-chon-vat-lieu-va-tieu-chuan-onghop-phu-hop\">Ch\u1ecdn v\u1eadt li\u1ec7u v\u00e0 ti\u00eau chu\u1ea9n \u1ed1ng\/h\u1ed9p ph\u00f9 h\u1ee3p<\/a><\/li>\n<li><a href=\"#toc-2-ban-kinh-uon-toi-thieu-huong-dan-nhanh-theo-dt\">B\u00e1n k\u00ednh u\u1ed1n t\u1ed1i thi\u1ec3u: h\u01b0\u1edbng d\u1eabn nhanh theo D\/t<\/a><\/li>\n<li><a href=\"#toc-3-phuong-phap-va-do-ga-uon-phu-hop\">Ph\u01b0\u01a1ng ph\u00e1p v\u00e0 \u0111\u1ed3 g\u00e1 u\u1ed1n ph\u00f9 h\u1ee3p<\/a><\/li>\n<li><a href=\"#toc-4-thong-so-cai-dat-quan-trong-tren-may-uon\">Th\u00f4ng s\u1ed1 c\u00e0i \u0111\u1eb7t quan tr\u1ecdng tr\u00ean m\u00e1y u\u1ed1n<\/a><\/li>\n<li><a href=\"#toc-5-chong-mop-nhan-bet-ky-thuat-then-chot\">Ch\u1ed1ng m\u00f3p, nh\u0103n, b\u1eb9t: k\u1ef9 thu\u1eadt then ch\u1ed1t<\/a><\/li>\n<li><a href=\"#toc-6-quy-trinh-uon-chuan-sop-cho-xuong\">Quy tr\u00ecnh u\u1ed1n chu\u1ea9n (SOP) cho x\u01b0\u1edfng<\/a><\/li>\n<li><a href=\"#toc-7-kiem-soat-chat-luong-sau-uon\">Ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng sau u\u1ed1n<\/a><\/li>\n<li><a href=\"#toc-8-vi-du-tinh-nhanh-va-goi-y-cong-nghe\">V\u00ed d\u1ee5 t\u00ednh nhanh v\u00e0 g\u1ee3i \u00fd c\u00f4ng ngh\u1ec7<\/a><\/li>\n<li><a href=\"#toc-9-cau-hoi-thuong-gap\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\n<li><a href=\"#toc-10-tai-lieu-tham-khao-chon-loc\">T\u00e0i li\u1ec7u tham kh\u1ea3o ch\u1ecdn l\u1ecdc<\/a><\/li>\n<li><a href=\"#toc-11-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>K\u1ef9 thu\u1eadt u\u1ed1n \u1ed1ng v\u00e0 h\u1ed9p Inox kh\u00f4ng b\u1ecb m\u00f3p, b\u1eb9t hay nh\u0103n l\u00e0 kh\u00e2u quy\u1ebft \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m h\u00e0n, lan can, khung k\u1ebft c\u1ea5u, \u0111\u01b0\u1eddng \u1ed1ng c\u00f4ng ngh\u1ec7\u2026 Trong b\u1ee9c tranh t\u1ed5ng th\u1ec3 \u201cC\u1ea9m nang v\u1ec1 \u1ed0ng v\u00e0 H\u1ed9p Inox\u201d, ch\u1ee7 \u0111\u1ec1 n\u00e0y t\u1eadp trung v\u00e0o th\u1ef1c h\u00e0nh: ch\u1ecdn b\u00e1n k\u00ednh u\u1ed1n t\u1ed1i thi\u1ec3u, c\u1ea5u h\u00ecnh \u0111\u1ed3 g\u00e1 (mandrel, wiper), c\u00e0i \u0111\u1eb7t m\u00e1y v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ec3 \u0111\u1ea1t b\u1ec1 m\u1eb7t \u0111\u1eb9p, \u0111\u1ed9 ch\u00ednh x\u00e1c cao, kh\u00f4ng bi\u1ebfn d\u1ea1ng.<\/p>\n<h2 id=\"toc-0-nguyen-ly-bien-dang-khi-uon-onghop-inox\">Nguy\u00ean l\u00fd bi\u1ebfn d\u1ea1ng khi u\u1ed1n \u1ed1ng\/h\u1ed9p Inox<\/h2>\n<p>&#8211; D\u00f2ng s\u1ee3i v\u1eadt li\u1ec7u: M\u1eb7t ngo\u00e0i (extrados) b\u1ecb k\u00e9o \u2014 m\u1ecfng \u0111i; m\u1eb7t trong (intrados) b\u1ecb n\u00e9n \u2014 d\u1ec5 nh\u0103n; v\u00f9ng trung h\u00f2a g\u1ea7n t\u00e2m th\u00e0nh.<br \/>\n&#8211; \u0110\u1ed9 c\u1ee9ng bi\u1ebfn d\u1ea1ng v\u00e0 \u0111\u00e0n h\u1ed3i: Inox austenitic 201\/304\/316 c\u00f3 h\u00f3a b\u1ec1n ngu\u1ed9i m\u1ea1nh v\u00e0 \u201cspringback\u201d l\u1edbn. C\u1ea7n b\u00f9 g\u00f3c u\u1ed1n 2\u20137\u00b0 t\u00f9y c\u1ea5p b\u1ec1n v\u00e0 b\u00e1n k\u00ednh.<br \/>\n&#8211; Hai t\u1ef7 s\u1ed1 chi ph\u1ed1i ch\u1ea5t l\u01b0\u1ee3ng:<br \/>\n  &#8211; D\/t (\u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i ho\u1eb7c b\u1ec1 r\u1ed9ng nh\u1ecf nh\u1ea5t\/chi\u1ec1u d\u00e0y): D\/t c\u00e0ng l\u1edbn c\u00e0ng d\u1ec5 m\u00f3p\/nh\u0103n.<br \/>\n  &#8211; R\/D (b\u00e1n k\u00ednh u\u1ed1n theo t\u00e2m\/R so v\u1edbi \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i D ho\u1eb7c b\u1ec1 r\u1ed9ng): R\/D c\u00e0ng nh\u1ecf (u\u1ed1n g\u1eaft) c\u00e0ng kh\u00f3.<\/p>\n<h2 id=\"toc-1-chon-vat-lieu-va-tieu-chuan-onghop-phu-hop\">Ch\u1ecdn v\u1eadt li\u1ec7u v\u00e0 ti\u00eau chu\u1ea9n \u1ed1ng\/h\u1ed9p ph\u00f9 h\u1ee3p<\/h2>\n<p>&#8211; M\u00e1c Inox:<br \/>\n  &#8211; 304\/304L: D\u1ec5 u\u1ed1n, \u1ed5n \u0111\u1ecbnh nh\u1ea5t cho n\u1ed9i ngo\u1ea1i th\u1ea5t\/thi\u1ebft b\u1ecb.<br \/>\n  &#8211; 316\/316L: Kh\u00e1ng \u0103n m\u00f2n cao, u\u1ed1n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng ho\u1eb7c \u201cm\u1ec1m\u201d h\u01a1n 304 \u0111\u00f4i ch\u00fat.<br \/>\n  &#8211; 201: \u0110\u1ed9 ch\u1ea3y cao h\u01a1n, xu h\u01b0\u1edbng springback l\u1edbn h\u01a1n 304; c\u1ea7n R l\u1edbn h\u01a1n ho\u1eb7c t\u0103ng h\u1ed7 tr\u1ee3 trong l\u00f2ng \u1ed1ng.<br \/>\n&#8211; D\u1ea1ng \u1ed1ng:<br \/>\n  &#8211; \u1ed0ng\/\u1ed1ng c\u01a1 kh\u00ed trang tr\u00ed theo ASTM A554 (h\u00e0n TIG\/laser, \u0111\u00e1nh b\u00f3ng). D\u1ec5 u\u1ed1n nh\u01b0ng c\u1ea7n b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t.<br \/>\n  &#8211; \u1ed0ng c\u00f4ng nghi\u1ec7p theo ASTM A312 (d\u00e0y h\u01a1n, d\u00f9ng cho h\u1ec7 th\u1ed1ng \u00e1p l\u1ef1c). Ph\u00f9 h\u1ee3p u\u1ed1n c\u1ea3m \u1ee9ng\/roll cho c\u1ee1 l\u1edbn.<br \/>\n  &#8211; N\u00ean \u0111\u1eb7t m\u1ed1i h\u00e0n \u1edf v\u00f9ng trung gian 30\u201345\u00b0 so v\u1edbi \u0111\u1ec9nh\/\u0111\u00e1y cung u\u1ed1n \u0111\u1ec3 gi\u1ea3m n\u1ee9t ho\u1eb7c g\u1ee3n.<br \/>\n&#8211; H\u1ed9p Inox (vu\u00f4ng\/ch\u1eef nh\u1eadt): Th\u00e0nh m\u1ecfng (\u22641.5 mm) r\u1ea5t d\u1ec5 \u201cd\u1eb9t m\u1eb7t\u201d khi u\u1ed1n g\u1eaft; n\u00ean \u01b0u ti\u00ean R l\u1edbn h\u01a1n v\u00e0 d\u00f9ng mandrel g\u00f3c.<\/p>\n<p>Ngu\u1ed3n ti\u00eau chu\u1ea9n tham kh\u1ea3o: ASTM A554 (Welded Stainless Steel Mechanical Tubing), ASTM A312 (Seamless\/Welded Stainless Steel Pipe).<\/p>\n<h2 id=\"toc-2-ban-kinh-uon-toi-thieu-huong-dan-nhanh-theo-dt\">B\u00e1n k\u00ednh u\u1ed1n t\u1ed1i thi\u1ec3u: h\u01b0\u1edbng d\u1eabn nhanh theo D\/t<\/h2>\n<p>L\u01b0u \u00fd: Gi\u00e1 tr\u1ecb khuy\u1ebfn ngh\u1ecb mang t\u00ednh th\u1ef1c h\u00e0nh x\u01b0\u1edfng, c\u00f3 th\u1ec3 tinh ch\u1ec9nh theo m\u00e1y, khu\u00f4n v\u00e0 b\u1ec1 m\u1eb7t y\u00eau c\u1ea7u.<\/p>\n<p>&#8211; \u1ed0ng tr\u00f2n Inox (OD = D, chi\u1ec1u d\u00e0y t):<br \/>\n  &#8211; D\/t \u2264 10: C\u00f3 th\u1ec3 u\u1ed1n R \u2265 1.0D kh\u00f4ng mandrel (nh\u01b0ng n\u00ean d\u00f9ng \u0111\u1ec3 b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t b\u00f3ng).<br \/>\n  &#8211; 10 < D\/t \u2264 15: R \u2265 1.5\u20132.0D; khuy\u1ebfn ngh\u1ecb mandrel khi R \u2264 2D.\n  - 15 < D\/t \u2264 25: R \u2265 2.5\u20133.0D; c\u1ea7n mandrel + wiper, c\u00f3 th\u1ec3 c\u1ea7n booster.\n  - D\/t > 25: R \u2265 3\u20134D; bu\u1ed9c d\u00f9ng mandrel ph\u00e2n \u0111o\u1ea1n (ball mandrel) + wiper + booster ho\u1eb7c t\u0103ng chi\u1ec1u d\u00e0y.<br \/>\n&#8211; H\u1ed9p vu\u00f4ng\/ch\u1eef nh\u1eadt Inox (l\u1ea5y c\u1ea1nh nh\u1ecf S v\u00e0 t):<br \/>\n  &#8211; S\/t \u2264 10: R_t\u00e2m \u2265 2.0\u20132.5\u00d7S v\u1edbi rotary draw; v\u1edbi press brake n\u00ean ch\u1ecdn ch\u00e0y\/c\u1ed1i c\u00f3 b\u00e1n k\u00ednh trong \u2265 2t.<br \/>\n  &#8211; S\/t 10\u201320: R_t\u00e2m \u2265 3.0\u20134.0\u00d7S; b\u1eaft bu\u1ed9c mandrel g\u00f3c + wiper urethane \u0111\u1ec3 ch\u1ed1ng \u201cd\u1eb9t m\u1eb7t\u201d.<br \/>\n&#8211; Ng\u01b0\u1ee1ng ki\u1ec3m so\u00e1t:<br \/>\n  &#8211; \u0110\u1ed9 b\u1eb9t\/oval h\u00f3a (ovality) sau u\u1ed1n n\u00ean \u2264 8% \u0111\u1ed1i v\u1edbi \u1ed1ng trang tr\u00ed; \u2264 10% v\u1edbi \u1ed1ng c\u00f4ng nghi\u1ec7p.<br \/>\n  &#8211; M\u1ee9c m\u1ecfng th\u00e0nh ngo\u00e0i cho ph\u00e9p v\u1edbi Inox th\u01b0\u1eddng \u0111\u1eb7t m\u1ee5c ti\u00eau \u2264 12\u201315% \u0111\u1ec3 tr\u00e1nh n\u1ee9t do h\u00f3a b\u1ec1n ngu\u1ed9i.<\/p>\n<p>Tham kh\u1ea3o th\u1ef1c h\u00e0nh: Parker Tube Bending Manual; Bend Tooling Inc., Tube Bending Basics; The Fabricator \u2013 Tube bending 101.<\/p>\n<h2 id=\"toc-3-phuong-phap-va-do-ga-uon-phu-hop\">Ph\u01b0\u01a1ng ph\u00e1p v\u00e0 \u0111\u1ed3 g\u00e1 u\u1ed1n ph\u00f9 h\u1ee3p<\/h2>\n<h3>Rotary Draw Bending (RDB) \u2013 gi\u1ea3i ph\u00e1p cho R nh\u1ecf, h\u00ecnh \u0111\u1eb9p<\/h3>\n<p>&#8211; Khu\u00f4n g\u1ed3m: Bend die (CLR), Clamp die, Pressure die, Wiper die, Mandrel (plug\/form\/ball).<br \/>\n&#8211; Khi n\u00e0o c\u1ea7n mandrel: D\/t > 15, R \u2264 2.5D, y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t cao ho\u1eb7c \u1ed1ng\/h\u1ed9p th\u00e0nh m\u1ecfng.<br \/>\n&#8211; Wiper die: \u0110\u1eb7t s\u00e1t intrados, g\u00f3c v\u00e1t 15\u201320\u00b0, v\u1eadt li\u1ec7u khu\u00f4n c\u1ee9ng ho\u1eb7c l\u00f3t polyurethane \u0111\u1ec3 ch\u1ed1ng v\u1ebft.<\/p>\n<h3>Compression\/Press Bending \u2013 nhanh nh\u01b0ng d\u1ec5 m\u00f3p<\/h3>\n<p>&#8211; Ph\u00f9 h\u1ee3p R l\u1edbn, \u1ed1ng d\u00e0y; \u00edt ph\u00f9 h\u1ee3p \u1ed1ng trang tr\u00ed th\u00e0nh m\u1ecfng do d\u1ec5 oval h\u00f3a.<\/p>\n<h3>Roll Bending \u2013 cho b\u00e1n k\u00ednh r\u1ea5t l\u1edbn (R \u2265 10D)<\/h3>\n<p>&#8211; D\u00f9ng 3\u20134 con l\u0103n; bi\u1ebfn d\u1ea1ng ph\u00e2n b\u1ed1 \u0111\u1ec1u, \u00edt m\u00f3p; ph\u00f9 h\u1ee3p khung m\u00e1i v\u00f2m, tay v\u1ecbn l\u1edbn.<\/p>\n<h3>Induction Bending \u2013 \u1ed1ng l\u1edbn, d\u00e0y, \u0111\u1ed9 ch\u00ednh x\u00e1c cao<\/h3>\n<p>&#8211; Gia nhi\u1ec7t c\u1ee5c b\u1ed9 + l\u00e0m m\u00e1t; \u00e1p d\u1ee5ng cho \u1ed1ng c\u00f4ng nghi\u1ec7p theo ASTM A312; c\u1ea7n x\u1eed l\u00fd b\u1ec1 m\u1eb7t sau u\u1ed1n.<\/p>\n<h3>Press brake cho h\u1ed9p Inox<\/h3>\n<p>&#8211; Ch\u1ecdn ch\u00e0y\/c\u1ed1i c\u00f3 b\u00e1n k\u00ednh trong \u2265 2\u20133t \u0111\u1ec3 tr\u00e1nh n\u1ee9t g\u00f3c.<br \/>\n&#8211; Ch\u00e8n g\u1ed1i urethane\/\u0111\u1ec7m g\u1ed7\/nh\u1ef1a \u0111\u1ec3 gi\u1ea3m v\u1ebft h\u1eb1n b\u1ec1 m\u1eb7t.<\/p>\n<h2 id=\"toc-4-thong-so-cai-dat-quan-trong-tren-may-uon\">Th\u00f4ng s\u1ed1 c\u00e0i \u0111\u1eb7t quan tr\u1ecdng tr\u00ean m\u00e1y u\u1ed1n<\/h2>\n<p>&#8211; CLR (Centerline Radius): Ch\u1ecdn theo R\/D m\u1ee5c ti\u00eau v\u00e0 D\/t nh\u01b0 ph\u1ea7n tr\u00ean.<br \/>\n&#8211; Chi\u1ec1u d\u00e0i k\u1eb9p (Clamp length): T\u1ed1i thi\u1ec3u \u2248 3\u00d7D + 25 mm \u0111\u1ec3 tr\u00e1nh tr\u01b0\u1ee3t; t\u0103ng v\u1edbi b\u1ec1 m\u1eb7t b\u00f3ng.<br \/>\n&#8211; L\u1ef1c \u00e9p Pressure die: V\u1eeba \u0111\u1ee7 gi\u1eef \u1ed1ng ch\u1ea1y theo khu\u00f4n; qu\u00e1 nh\u1ecf g\u00e2y nh\u0103n, qu\u00e1 l\u1edbn g\u00e2y v\u1ebft c\u00e0o.<br \/>\n&#8211; Wiper die: T\u00ec s\u00e1t intrados, \u0111i\u1ec1u ch\u1ec9nh ti\u1ebfn \u2013 l\u00f9i \u0111\u1ec3 x\u00f3a n\u1ebfp \u0111\u1ea7u ti\u00ean; thay l\u01b0\u1ee1i wiper khi m\u00f2n.<br \/>\n&#8211; Mandrel:<br \/>\n  &#8211; V\u1ecb tr\u00ed: Ch\u00f3p mandrel v\u01b0\u1ee3t m\u00e9p b\u1eaft \u0111\u1ea7u l\u00f2ng khu\u00f4n 0.5\u20131.0 mm \u0111\u1ed1i v\u1edbi \u1ed1ng m\u1ecfng.<br \/>\n  &#8211; Lo\u1ea1i: Plug (nh\u1eb9), form (\u0111\u1ea7u c\u1ea7u), ball mandrel (ph\u00e2n \u0111o\u1ea1n) cho R nh\u1ecf\/D\/t l\u1edbn.<br \/>\n&#8211; Booster\/Pressure-die assist: \u0110\u1ea9y \u1ed1ng v\u1ec1 ph\u00eda khu\u00f4n \u0111\u1ec3 gi\u1ea3m m\u1ecfng th\u00e0nh ngo\u00e0i \u1edf R r\u1ea5t nh\u1ecf.<br \/>\n&#8211; B\u00f9 g\u00f3c springback: 201 \u2248 +3\u20137\u00b0, 304\/316 \u2248 +2\u20135\u00b0 t\u00f9y R\/D.<\/p>\n<h2 id=\"toc-5-chong-mop-nhan-bet-ky-thuat-then-chot\">Ch\u1ed1ng m\u00f3p, nh\u0103n, b\u1eb9t: k\u1ef9 thu\u1eadt then ch\u1ed1t<\/h2>\n<p>&#8211; H\u1ed7 tr\u1ee3 trong l\u00f2ng \u1ed1ng\/h\u1ed9p:<br \/>\n  &#8211; Mandrel (t\u1ed1t nh\u1ea5t) ho\u1eb7c v\u1eadt li\u1ec7u ch\u00e8n t\u1ea1m: c\u00e1t kh\u00f4 s\u1ea5y, rosin; h\u1ee3p kim n\u00f3ng ch\u1ea3y (ch\u1ec9 d\u00f9ng cho s\u1ea3n ph\u1ea9m k\u1ef9 thu\u1eadt, kh\u00f4ng d\u00f9ng cho th\u1ef1c ph\u1ea9m). Sau u\u1ed1n ph\u1ea3i v\u1ec7 sinh s\u1ea1ch.<br \/>\n&#8211; B\u00f4i tr\u01a1n \u0111\u00fang c\u00e1ch:<br \/>\n  &#8211; D\u00f9ng m\u1ee1\/ch\u1ea5t b\u00f4i tr\u01a1n EP g\u1ed1c t\u1ed5ng h\u1ee3p, MoS2, s\u00e1p; tr\u00e1nh dung d\u1ecbch ch\u1ee9a chloride \u0111\u1ec3 kh\u00f4ng g\u00e2y r\u1ed7. Sau u\u1ed1n t\u1ea9y r\u1eeda, th\u1ee5 \u0111\u1ed9ng h\u00f3a theo ASTM A380\/A967 (citric\/nitric).<br \/>\n&#8211; B\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t b\u00f3ng g\u01b0\u01a1ng:<br \/>\n  &#8211; D\u00f9ng khu\u00f4n b\u1ecdc nylon\/urethane, d\u00e1n b\u0103ng keo PET, gi\u1eef film PVC tr\u00ean \u1ed1ng; lau s\u1ea1ch h\u1ea1t b\u1ee5i tr\u01b0\u1edbc khi k\u1eb9p.<br \/>\n&#8211; \u0110\u1ecbnh h\u01b0\u1edbng m\u1ed1i h\u00e0n: 30\u201345\u00b0 so v\u1edbi \u0111\u1ec9nh\/\u0111\u00e1y cung u\u1ed1n \u0111\u1ec3 gi\u1ea3m nguy c\u01a1 n\u1ee9t\/nh\u0103n.<br \/>\n&#8211; T\u0103ng chi\u1ec1u d\u00e0y ho\u1eb7c t\u0103ng R n\u1ebfu D\/t qu\u00e1 l\u1edbn: Thi\u1ebft k\u1ebf l\u1ea1i \u0111\u1ec3 gi\u1ea3m r\u1ee7i ro m\u00f3p.<\/p>\n<h2 id=\"toc-6-quy-trinh-uon-chuan-sop-cho-xuong\">Quy tr\u00ecnh u\u1ed1n chu\u1ea9n (SOP) cho x\u01b0\u1edfng<\/h2>\n<p>1) Kh\u1ea3o s\u00e1t b\u1ea3n v\u1ebd: X\u00e1c \u0111\u1ecbnh OD\/S, t, m\u00e1c Inox, R_t\u00e2m, g\u00f3c, y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t; ch\u1ecdn ti\u00eau chu\u1ea9n \u1ed1ng (ASTM A554\/A312).<br \/>\n2) T\u00ednh nhanh kh\u1ea3 thi: Ki\u1ec3m tra D\/t v\u00e0 R\/D theo h\u01b0\u1edbng d\u1eabn; n\u1ebfu v\u01b0\u1ee3t ng\u01b0\u1ee1ng, \u0111\u1ec1 xu\u1ea5t t\u0103ng R ho\u1eb7c ch\u1ecdn \u1ed1ng d\u00e0y h\u01a1n.<br \/>\n3) Chu\u1ea9n b\u1ecb ph\u00f4i: C\u1eaft d\u01b0 50\u2013150 mm cho \u0111o\u1ea1n k\u1eb9p; v\u00ea m\u00e9p, t\u1ea9y d\u1ea7u; \u0111\u00e1nh d\u1ea5u \u0111\u01b0\u1eddng sinh\/tangent, h\u01b0\u1edbng m\u1ed1i h\u00e0n.<br \/>\n4) Ch\u1ecdn v\u00e0 l\u1eafp khu\u00f4n: Bend die \u0111\u00fang CLR, clamp\/pressure v\u1eeba kh\u00edt; g\u1eafn wiper v\u00e0 mandrel th\u00edch h\u1ee3p; b\u1ecdc b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t n\u1ebfu c\u1ea7n.<br \/>\n5) B\u00f4i tr\u01a1n: Ph\u1ee7 \u0111\u1ec1u trong\/ngo\u00e0i t\u1ea1i v\u00f9ng u\u1ed1n v\u00e0 b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac khu\u00f4n.<br \/>\n6) Ch\u1ea1y th\u1eed: U\u1ed1n m\u1eabu 1\u20132 chi ti\u1ebft, hi\u1ec7u ch\u1ec9nh l\u1ef1c k\u1eb9p, v\u1ecb tr\u00ed mandrel, wiper, b\u00f9 springback.<br \/>\n7) Ki\u1ec3m tra m\u1eabu: \u0110o ovality, b\u00e1n k\u00ednh, g\u00f3c; soi g\u00e2n nh\u0103n, v\u1ebft tr\u1ea7y; n\u1ebfu m\u1ecfng qu\u00e1 m\u1ee9c, t\u0103ng booster\/CLR ho\u1eb7c \u0111\u1ed5i chi\u1ebfn l\u01b0\u1ee3c.<br \/>\n8) S\u1ea3n xu\u1ea5t: Duy tr\u00ec th\u00f4ng s\u1ed1; v\u1ec7 sinh khu\u00f4n sau m\u1ed7i lo\u1ea1t; thay l\u01b0\u1ee1i wiper khi c\u00f3 bavia v\u1eadt li\u1ec7u.<br \/>\n9) H\u1eadu x\u1eed l\u00fd: T\u1ea9y r\u1eeda d\u1ea7u, pickling\/th\u1ee5 \u0111\u1ed9ng h\u00f3a (n\u1ebfu m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n), \u0111\u00e1nh b\u00f3ng ph\u1ee5c h\u1ed3i.<br \/>\n10) Ki\u1ec3m so\u00e1t cu\u1ed1i: \u0110o k\u00edch th\u01b0\u1edbc, g\u00e1 d\u01b0\u1ee1ng; ch\u1ee5p l\u01b0u k\u1ebft qu\u1ea3 QC.<\/p>\n<h2 id=\"toc-7-kiem-soat-chat-luong-sau-uon\">Ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng sau u\u1ed1n<\/h2>\n<p>&#8211; \u0110o b\u00e1n k\u00ednh v\u00e0 g\u00f3c: D\u01b0\u1ee1ng \u0111o R, th\u01b0\u1edbc \u0111o g\u00f3c; cho ph\u00e9p sai l\u1ec7ch g\u00f3c \u00b10.5\u20131\u00b0.<br \/>\n&#8211; Ovality (%): (OD_max \u2212 OD_min) \/ OD_nom \u00d7 100; m\u1ee5c ti\u00eau \u2264 8% (trang tr\u00ed) ho\u1eb7c \u2264 10% (c\u00f4ng nghi\u1ec7p).<br \/>\n&#8211; M\u1ecfng th\u00e0nh: Ki\u1ec3m tra b\u1eb1ng si\u00eau \u00e2m\/so c\u1eaft; m\u1ee5c ti\u00eau \u2264 12\u201315%.<br \/>\n&#8211; V\u1ebft nh\u0103n intrados: Kh\u00f4ng cho ph\u00e9p g\u00e2n nh\u0103n nh\u00ecn th\u1ea5y v\u1edbi s\u1ea3n ph\u1ea9m trang tr\u00ed; v\u1edbi c\u00f4ng nghi\u1ec7p, chi\u1ec1u cao nh\u0103n ph\u1ea3i trong ti\u00eau ch\u00ed n\u1ed9i b\u1ed9.<br \/>\n&#8211; N\u1ee9t vi m\u00f4: Ki\u1ec3m tra thu\u1ed1c nhu\u1ed9m th\u1ea5m (PT) \u1edf g\u00f3c u\u1ed1n g\u1eaft ho\u1eb7c 201 th\u00e0nh m\u1ecfng.<br \/>\n&#8211; B\u1ec1 m\u1eb7t: \u0110\u1ed9 x\u01b0\u1edbc b\u1ec1 r\u1ed9ng \u2264 0.1 mm cho h\u1ea1ng b\u00f3ng g\u01b0\u01a1ng; \u0111\u00e1nh b\u00f3ng ph\u1ee5c h\u1ed3i n\u1ebfu c\u1ea7n.<br \/>\n&#8211; Ph\u1ee5c h\u1ed3i th\u1ee5 \u0111\u1ed9ng: Theo ASTM A967 (dung d\u1ecbch citric\/nitric), \u0111\u1eb7c bi\u1ec7t sau khi d\u00f9ng ch\u1ea5t b\u00f4i tr\u01a1n c\u1ef1c \u00e1p.<\/p>\n<h2 id=\"toc-8-vi-du-tinh-nhanh-va-goi-y-cong-nghe\">V\u00ed d\u1ee5 t\u00ednh nhanh v\u00e0 g\u1ee3i \u00fd c\u00f4ng ngh\u1ec7<\/h2>\n<p>&#8211; Case 1: \u1ed0ng 304 \u03a638.1 \u00d7 1.5 mm, u\u1ed1n 90\u00b0, R_t\u00e2m = 76 mm (\u22482D).<br \/>\n  &#8211; D\/t = 38.1\/1.5 \u2248 25.4 \u2192 v\u00f9ng kh\u00f3.<br \/>\n  &#8211; Gi\u1ea3i ph\u00e1p: RDB + ball mandrel 4\u20135 bi + wiper; booster nh\u1eb9; b\u00f9 g\u00f3c +3\u00b0. B\u00f4i tr\u01a1n EP; ovality m\u1ee5c ti\u00eau \u2264 8%.<br \/>\n&#8211; Case 2: H\u1ed9p 40 \u00d7 40 \u00d7 1.2 mm, R_t\u00e2m = 120 mm (\u22483\u00d7S).<br \/>\n  &#8211; S\/t = 40\/1.2 \u2248 33 \u2192 r\u1ea5t m\u1ecfng.<br \/>\n  &#8211; Gi\u1ea3i ph\u00e1p: Mandrel g\u00f3c (corner mandrel) + wiper urethane; c\u00f3 th\u1ec3 t\u0103ng R l\u00ean 4\u00d7S n\u1ebfu c\u00f2n \u201cd\u1eb9t m\u1eb7t\u201d; b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t b\u1eb1ng b\u1ecdc nylon khu\u00f4n.<\/p>\n<h2 id=\"toc-9-cau-hoi-thuong-gap\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<p>&#8211; C\u00f3 n\u00ean h\u01a1 n\u00f3ng khi u\u1ed1n Inox?<br \/>\n  &#8211; Tr\u00e1nh gia nhi\u1ec7t kh\u00f4ng ki\u1ec3m so\u00e1t \u1edf 450\u2013850\u00b0C (nguy c\u01a1 k\u1ebft t\u1ee7a carbide v\u1edbi 304\/316). N\u1ebfu b\u1eaft bu\u1ed9c u\u1ed1n n\u00f3ng\/induction, c\u1ea7n x\u1eed l\u00fd th\u1ee5 \u0111\u1ed9ng\/t\u00e1i h\u00f2a tan th\u00edch h\u1ee3p.<br \/>\n&#8211; \u1ed0ng h\u00e0n trang tr\u00ed c\u00f3 u\u1ed1n ch\u1eb7t nh\u01b0 \u1ed1ng \u0111\u00fac?<br \/>\n  &#8211; V\u1eabn u\u1ed1n \u0111\u1eb9p n\u1ebfu h\u00e0n \u0111\u1ea1t v\u00e0 m\u00e0i ph\u1eb3ng \u0111\u01b0\u1eddng h\u00e0n; nh\u01b0ng v\u1edbi R \u2264 1.5D v\u00e0 D\/t l\u1edbn, \u1ed1ng \u0111\u00fac ho\u1eb7c t\u0103ng t s\u1ebd an to\u00e0n h\u01a1n.<br \/>\n&#8211; L\u00e0m sao gi\u1ea3m v\u1ebft tr\u1ea7y tr\u00ean \u1ed1ng g\u01b0\u01a1ng?<br \/>\n  &#8211; D\u00f9ng khu\u00f4n b\u1ecdc nh\u1ef1a, s\u1ea1ch b\u1ee5i, b\u00f4i tr\u01a1n \u0111\u1ee7, gi\u1eef film b\u1ea3o v\u1ec7, \u0111i\u1ec1u ch\u1ec9nh l\u1ef1c k\u1eb9p t\u1ed1i \u01b0u.<\/p>\n<h2 id=\"toc-10-tai-lieu-tham-khao-chon-loc\">T\u00e0i li\u1ec7u tham kh\u1ea3o ch\u1ecdn l\u1ecdc<\/h2>\n<p>&#8211; ASTM A554 \u2013 Standard Specification for Welded Stainless Steel Mechanical Tubing.<br \/>\n&#8211; ASTM A312 \u2013 Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes.<br \/>\n&#8211; ASTM A380\/A967 \u2013 Cleaning, Descaling, and Passivation of Stainless Steel Parts.<br \/>\n&#8211; Parker Hannifin, Tube Bending Manual \/ Instrument Tube Fitting Installation Guide (Catalog 4200).<br \/>\n&#8211; ASM Specialty Handbook: Stainless Steels, ASM International.<br \/>\n&#8211; Bend Tooling Inc., Tube Bending Basics; The Fabricator, \u201cTube bending 101.\u201d<\/p>\n<h2 id=\"toc-11-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>\u0110\u1ec3 u\u1ed1n \u1ed1ng v\u00e0 h\u1ed9p Inox kh\u00f4ng b\u1ecb m\u00f3p hay bi\u1ebfn d\u1ea1ng, h\u00e3y ki\u1ec3m so\u00e1t ba y\u1ebfu t\u1ed1 c\u1ed1t l\u00f5i: (1) thi\u1ebft k\u1ebf ph\u00f9 h\u1ee3p v\u1edbi D\/t v\u00e0 R\/D \u2014 ch\u1ecdn b\u00e1n k\u00ednh u\u1ed1n t\u1ed1i thi\u1ec3u theo khuy\u1ebfn ngh\u1ecb; (2) c\u00f4ng ngh\u1ec7 \u0111\u00fang \u2014 \u01b0u ti\u00ean rotary draw v\u1edbi mandrel + wiper, b\u00f4i tr\u01a1n chu\u1ea9n, c\u00e0i \u0111\u1eb7t l\u1ef1c k\u1eb9p\/booster h\u1ee3p l\u00fd; (3) ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng \u2014 theo d\u00f5i ovality, m\u1ecfng th\u00e0nh, b\u1ec1 m\u1eb7t v\u00e0 x\u1eed l\u00fd th\u1ee5 \u0111\u1ed9ng sau u\u1ed1n. Th\u1ef1c hi\u1ec7n \u0111\u00fang quy tr\u00ecnh, b\u1ea1n s\u1ebd \u0111\u1ea1t chi ti\u1ebft u\u1ed1n s\u1eafc n\u00e9t, \u0111\u1ed3ng nh\u1ea5t, kh\u00f4ng nh\u0103n, \u0111\u00e1p \u1ee9ng c\u1ea3 y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt l\u1eabn th\u1ea9m m\u1ef9.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n ch\u1ecdn \u1ed1ng\/h\u1ed9p, khu\u00f4n v\u00e0 quy tr\u00ecnh u\u1ed1n t\u1ed1i \u01b0u cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt v\u00e0 b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t. Hotline: 0343.417.281. Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn u\u1ed1n \u1ed1ng, h\u1ed9p Inox kh\u00f4ng m\u00f3p: ch\u1ecdn b\u00e1n k\u00ednh t\u1ed1i thi\u1ec3u, D\/t, mandrel + wiper, b\u00f4i tr\u01a1n, ch\u1ed1ng nh\u0103n, ki\u1ec3m so\u00e1t bi\u1ebfn d\u1ea1ng cho 201\/304\/316.<\/p>\n","protected":false},"author":7,"featured_media":1053,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2119","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\/2119","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=2119"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2119\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1053"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=2119"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=2119"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=2119"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}