{"id":1850,"date":"2026-04-01T00:35:19","date_gmt":"2026-03-31T17:35:19","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/bulong-oc-vit-rivet-cho-inox-khi-nao-nen-chon-thay-vi-han\/"},"modified":"2026-04-01T00:35:19","modified_gmt":"2026-03-31T17:35:19","slug":"bulong-oc-vit-rivet-cho-inox-khi-nao-nen-chon-thay-vi-han","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/bulong-oc-vit-rivet-cho-inox-khi-nao-nen-chon-thay-vi-han\/","title":{"rendered":"Bulong, \u1ed1c v\u00edt, rivet cho inox: Khi n\u00e0o n\u00ean ch\u1ecdn thay v\u00ec h\u00e0n?"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-tong-quan-han-vs-lien-ket-co-khi-tren-inox\">T\u1ed5ng quan: H\u00e0n vs li\u00ean k\u1ebft c\u01a1 kh\u00ed tr\u00ean inox<\/a><\/li>\n<li><a href=\"#toc-1-khi-nao-nen-uu-tien-bulongoc-vitrivet-thay-cho-han\">Khi n\u00e0o n\u00ean \u01b0u ti\u00ean bulong\/\u1ed1c v\u00edt\/rivet thay cho h\u00e0n<\/a><\/li>\n<li><a href=\"#toc-2-chon-loai-lien-ket-bulong-oc-vit-hay-rivet\">Ch\u1ecdn lo\u1ea1i li\u00ean k\u1ebft: bulong, \u1ed1c v\u00edt hay rivet?<\/a><\/li>\n<li><a href=\"#toc-3-thiet-ke-va-tinh-toan-so-bo-nguyen-tac-thuc-dung\">Thi\u1ebft k\u1ebf v\u00e0 t\u00ednh to\u00e1n s\u01a1 b\u1ed9: nguy\u00ean t\u1eafc th\u1ef1c d\u1ee5ng<\/a><\/li>\n<li><a href=\"#toc-4-quy-trinh-lap-dat-chuan-goi-y-thuc-hanh\">Quy tr\u00ecnh l\u1eafp \u0111\u1eb7t chu\u1ea9n (g\u1ee3i \u00fd th\u1ef1c h\u00e0nh)<\/a><\/li>\n<li><a href=\"#toc-5-ung-dung-thuc-te-tai-viet-nam\">\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf t\u1ea1i Vi\u1ec7t Nam<\/a><\/li>\n<li><a href=\"#toc-6-khi-nao-khong-nen-dung-bulongrivet-ma-nen-han\">Khi n\u00e0o KH\u00d4NG n\u00ean d\u00f9ng bulong\/rivet m\u00e0 n\u00ean h\u00e0n<\/a><\/li>\n<li><a href=\"#toc-7-chi-phi-va-tien-do-buc-tranh-tong-the\">Chi ph\u00ed v\u00e0 ti\u1ebfn \u0111\u1ed9: b\u1ee9c tranh t\u1ed5ng th\u1ec3<\/a><\/li>\n<li><a href=\"#toc-8-tieu-chuan-va-tai-lieu-tham-khao\">Ti\u00eau chu\u1ea9n v\u00e0 t\u00e0i li\u1ec7u tham kh\u1ea3o<\/a><\/li>\n<li><a href=\"#toc-9-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Trong l\u1eafp d\u1ef1ng v\u00e0 ch\u1ebf t\u1ea1o inox, kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o h\u00e0n c\u0169ng l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1i \u01b0u. \u1ede nhi\u1ec1u t\u00ecnh hu\u1ed1ng, li\u00ean k\u1ebft c\u01a1 kh\u00ed b\u1eb1ng bulong, \u1ed1c v\u00edt ho\u1eb7c rivet (\u0111inh t\u00e1n) cho hi\u1ec7u qu\u1ea3 k\u1ef9 thu\u1eadt v\u00e0 kinh t\u1ebf v\u01b0\u1ee3t tr\u1ed9i. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p khung ra quy\u1ebft \u0111\u1ecbnh, ti\u00eau ch\u00ed thi\u1ebft k\u1ebf v\u00e0 quy tr\u00ecnh l\u1eafp \u0111\u1eb7t \u0111\u1ec3 b\u1ea1n bi\u1ebft ch\u00ednh x\u00e1c khi n\u00e0o n\u00ean d\u00f9ng bulong\/\u1ed1c v\u00edt\/rivet thay cho h\u00e0n, c\u00f9ng c\u00e1c ti\u00eau chu\u1ea9n c\u1ea7n tham chi\u1ebfu.<\/p>\n<h2 id=\"toc-0-tong-quan-han-vs-lien-ket-co-khi-tren-inox\">T\u1ed5ng quan: H\u00e0n vs li\u00ean k\u1ebft c\u01a1 kh\u00ed tr\u00ean inox<\/h2>\n<p>&#8211; H\u00e0n inox (GTAW\/TIG, GMAW\/MIG, SMAW\u2026) t\u1ea1o li\u00ean k\u1ebft to\u00e0n kh\u1ed1i, k\u00edn n\u01b0\u1edbc\/k\u00edn kh\u00ed, th\u1ea9m m\u1ef9 li\u1ec1n m\u1ea1ch n\u1ebfu ho\u00e0n thi\u1ec7n t\u1ed1t. Tuy nhi\u00ean, nh\u01b0\u1ee3c \u0111i\u1ec3m g\u1ed3m: bi\u1ebfn d\u1ea1ng nhi\u1ec7t, bi\u1ebfn m\u00e0u\/oxy h\u00f3a (heat tint), nguy c\u01a1 nh\u1ea1y c\u1ea3m h\u00f3a (sensitization) v\u00f9ng \u1ea3nh h\u01b0\u1edfng nhi\u1ec7t n\u1ebfu quy tr\u00ecnh k\u00e9m, y\u00eau c\u1ea7u th\u1ee3 tay ngh\u1ec1 cao v\u00e0 th\u1eddi gian x\u1eed l\u00fd b\u1ec1 m\u1eb7t (pickling\/passivation).<br \/>\n&#8211; Li\u00ean k\u1ebft c\u01a1 kh\u00ed (bulong, \u1ed1c v\u00edt, rivet) kh\u00f4ng t\u1ea1o nhi\u1ec7t, d\u1ec5 thi c\u00f4ng hi\u1ec7n tr\u01b0\u1eddng, th\u00e1o l\u1eafp\/b\u1ea3o tr\u00ec thu\u1eadn ti\u1ec7n, \u00edt bi\u1ebfn d\u1ea1ng, ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng \u0111\u01a1n gi\u1ea3n h\u01a1n. \u0110i\u1ec3m c\u1ea7n l\u01b0u \u00fd: nguy c\u01a1 l\u1ecfng do rung \u0111\u1ed9ng, khe h\u1edf g\u00e2y \u0103n m\u00f2n k\u1ebd h\u1edf (crevice corrosion), y\u00eau c\u1ea7u khoan \u0111\u1ed9t l\u1ed7, v\u00e0 th\u1ea9m m\u1ef9 kh\u00f4ng \u201cli\u1ec1n t\u1ea5m\u201d nh\u01b0 h\u00e0n.<\/p>\n<h2 id=\"toc-1-khi-nao-nen-uu-tien-bulongoc-vitrivet-thay-cho-han\">Khi n\u00e0o n\u00ean \u01b0u ti\u00ean bulong\/\u1ed1c v\u00edt\/rivet thay cho h\u00e0n<\/h2>\n<h3>1) C\u1ea7n th\u00e1o l\u1eafp, b\u1ea3o tr\u00ec, n\u00e2ng c\u1ea5p \u0111\u1ecbnh k\u1ef3<\/h3>\n<p>&#8211; K\u1ebft c\u1ea5u khung m\u00e1y, b\u0103ng t\u1ea3i, t\u1ee7 \u0111i\u1ec7n, n\u1eafp ki\u1ec3m tra\u2026 n\u00ean d\u00f9ng bulong\/\u1ed1c v\u00edt \u0111\u1ec3 th\u00e1o l\u1eafp nhanh, gi\u1ea3m th\u1eddi gian d\u1eebng m\u00e1y.<\/p>\n<h3>2) T\u1ea5m m\u1ecfng d\u1ec5 bi\u1ebfn d\u1ea1ng ho\u1eb7c chi ti\u1ebft nh\u1ea1y nhi\u1ec7t<\/h3>\n<p>&#8211; Inox t\u1ea5m m\u1ecfng \u22641.5\u20132.0 mm r\u1ea5t d\u1ec5 cong v\u00eanh khi h\u00e0n. Rivet ho\u1eb7c v\u00edt t\u1ef1 khoan\/t\u1ef1 ren gi\u1ea3m bi\u1ebfn d\u1ea1ng, gi\u1eef ph\u1eb3ng b\u1ec1 m\u1eb7t panel, \u1ed1p trang tr\u00ed, \u1ed1ng gi\u00f3, v\u1ecf m\u00e1y.<\/p>\n<h3>3) L\u1eafp d\u1ef1ng hi\u1ec7n tr\u01b0\u1eddng, kh\u00f4ng gian h\u1eb9p, kh\u00f3 c\u1ea5p kh\u00ed b\u1ea3o v\u1ec7<\/h3>\n<p>&#8211; K\u1ebft c\u1ea5u tr\u00ean cao, trong nh\u00e0 x\u01b0\u1edfng \u0111ang v\u1eadn h\u00e0nh, ho\u1eb7c khu v\u1ef1c h\u1ea1n ch\u1ebf tia l\u1eeda\/h\u01a1i kh\u00ed: d\u00f9ng bulong\/rivet an to\u00e0n, nhanh g\u1ecdn, kh\u00f4ng c\u1ea7n che ch\u1eafn h\u00e0n.<\/p>\n<h3>4) C\u1ea7n t\u1ed1c \u0111\u1ed9 thi c\u00f4ng v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ed3ng nh\u1ea5t<\/h3>\n<p>&#8211; M\u1ed1i gh\u00e9p bu l\u00f4ng\/rivet c\u00f3 th\u1ec3 ki\u1ec3m tra m\u00f4-men si\u1ebft ho\u1eb7c ch\u00e2n \u0111inh b\u1ee9t, d\u1ec5 chu\u1ea9n h\u00f3a h\u01a1n so v\u1edbi tay ngh\u1ec1 h\u00e0n kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u gi\u1eefa ca\/k\u00edp.<\/p>\n<h3>5) Li\u00ean k\u1ebft d\u1ecb v\u1eadt li\u1ec7u ho\u1eb7c b\u1ec1 m\u1eb7t \u0111\u00e3 x\u1eed l\u00fd<\/h3>\n<p>&#8211; Gh\u00e9p inox v\u1edbi nh\u1ef1a, composite, k\u00ednh, g\u1ed7, ho\u1eb7c kim lo\u1ea1i kh\u00e1c: li\u00ean k\u1ebft c\u01a1 kh\u00ed\/\u0111inh t\u00e1n l\u00e0 l\u1ef1a ch\u1ecdn t\u1ef1 nhi\u00ean. Kh\u00f4ng l\u00e0m h\u1ecfng l\u1edbp s\u01a1n\/ph\u1ee7, kh\u00f4ng g\u00e2y bi\u1ebfn m\u00e0u v\u00f9ng h\u00e0n.<\/p>\n<h3>6) \u1ee8ng d\u1ee5ng c\u1ea7n \u201c\u0111\u1ed9 m\u1edf\u201d cho gi\u00e3n n\u1edf nhi\u1ec7t<\/h3>\n<p>&#8211; M\u1eb7t d\u1ef1ng, m\u00e1ng c\u00e1p, \u1ed1p t\u01b0\u1eddng ngo\u00e0i tr\u1eddi: l\u1ed7 oval + bu l\u00f4ng cho ph\u00e9p tr\u01b0\u1ee3t nhi\u1ec7t, tr\u00e1nh n\u1ee9t ho\u1eb7c ph\u1ed3ng t\u1ea5m do kh\u00f3a c\u1ee9ng b\u1eb1ng m\u1ed1i h\u00e0n.<\/p>\n<h3>7) T\u1ed1i \u01b0u chi ph\u00ed t\u1ed5ng th\u1ec3<\/h3>\n<p>&#8211; V\u1edbi s\u1ea3n l\u01b0\u1ee3ng l\u1edbn, l\u1eb7p l\u1ea1i, d\u00f9ng rivet\/v\u00edt gi\u00fap r\u00fat ng\u1eafn chu k\u1ef3, gi\u1ea3m chi ph\u00ed nh\u00e2n c\u00f4ng tay ngh\u1ec1 cao, h\u1ea1n ch\u1ebf c\u00f4ng \u0111o\u1ea1n l\u00e0m s\u1ea1ch sau h\u00e0n.<\/p>\n<p>L\u01b0u \u00fd ngo\u1ea1i l\u1ec7: Trong ng\u00e0nh th\u1ef1c ph\u1ea9m\/d\u01b0\u1ee3c ph\u1ea9m y\u00eau c\u1ea7u v\u1ec7 sinh tuy\u1ec7t \u0111\u1ed1i ho\u1eb7c \u00e1p l\u1ef1c\/k\u00edn ho\u00e0n to\u00e0n (b\u1ed3n \u00e1p l\u1ef1c, \u0111\u01b0\u1eddng \u1ed1ng CIP\/SIP), m\u1ed1i h\u00e0n li\u00ean t\u1ee5c \u0111\u01b0\u1ee3c \u01b0u ti\u00ean theo quy chu\u1ea9n ng\u00e0nh.<\/p>\n<h2 id=\"toc-2-chon-loai-lien-ket-bulong-oc-vit-hay-rivet\">Ch\u1ecdn lo\u1ea1i li\u00ean k\u1ebft: bulong, \u1ed1c v\u00edt hay rivet?<\/h2>\n<h3>Bulong\/\u0111ai \u1ed1c (m\u1ed1i gh\u00e9p b\u1eaft ch\u1eb7t, c\u00f3\/kh\u00f4ng c\u00f3 l\u1ef1c c\u0103ng tr\u01b0\u1edbc)<\/h3>\n<p>&#8211; \u01afu \u0111i\u1ec3m: Ch\u1ecbu t\u1ea3i k\u00e9o\/c\u1eaft t\u1ed1t, th\u00e1o l\u1eafp nhi\u1ec1u l\u1ea7n, d\u00f9ng cho k\u1ebft c\u1ea5u ch\u1ecbu l\u1ef1c, khung, gi\u00e1 \u0111\u1ee1. C\u00f3 th\u1ec3 si\u1ebft t\u1ea1o ti\u1ec1n t\u1ea3i (preload) \u0111\u1ec3 t\u0103ng ma s\u00e1t, ch\u1ed1ng tr\u01b0\u1ee3t v\u00e0 c\u1ea3i thi\u1ec7n m\u1ecfi.<br \/>\n&#8211; Nh\u01b0\u1ee3c \u0111i\u1ec3m: C\u1ea7n ti\u1ebfp c\u1eadn hai ph\u00eda \u0111\u1ec3 \u0111\u1eb7t bu l\u00f4ng v\u00e0 \u0111ai \u1ed1c; c\u00f3 nguy c\u01a1 \u201ck\u1eb9t ren\u201d (galling) v\u1edbi inox; c\u1ea7n ki\u1ec3m so\u00e1t m\u00f4-men si\u1ebft.<br \/>\n&#8211; Khuy\u1ebfn ngh\u1ecb k\u1ef9 thu\u1eadt:<br \/>\n  &#8211; V\u1eadt li\u1ec7u\/c\u1ea5p b\u1ec1n theo ISO 3506: A2-70 (trong nh\u00e0\/kh\u00ed quy\u1ec3n th\u01b0\u1eddng), A4-70\/A4-80 (m\u00f4i tr\u01b0\u1eddng clorua\/ven bi\u1ec3n). D\u00f9ng long \u0111en\/ph\u1ee5 ki\u1ec7n c\u00f9ng c\u1ea5p v\u1eadt li\u1ec7u.<br \/>\n  &#8211; Ch\u1ed1ng galling: d\u00f9ng m\u1ee1 ch\u1ed1ng k\u1eb9t (moly, nickel), ren s\u1ea1ch, t\u1ed1c \u0111\u1ed9 si\u1ebft ch\u1eadm, tr\u00e1nh si\u1ebft kh\u00f4; c\u00f3 th\u1ec3 d\u00f9ng \u0111ai \u1ed1c ph\u1ee7 l\u1edbp ch\u1ed1ng k\u1eb9t ho\u1eb7c ph\u1ee7 b\u1ea1c cho \u1ee9ng d\u1ee5ng quan tr\u1ecdng.<br \/>\n  &#8211; Kh\u00f3a ren: \u0111ai \u1ed1c t\u1ef1 h\u00e3m, long \u0111en v\u00eanh, keo kh\u00f3a ren (t\u00f9y nhi\u1ec7t \u0111\u1ed9), ho\u1eb7c si\u1ebft ti\u1ec1n t\u1ea3i \u0111\u00fang chu\u1ea9n.<br \/>\n  &#8211; Khe h\u1edf l\u1ed7: th\u01b0\u1eddng +0.2 \u0111\u1ebfn +0.5 mm t\u00f9y \u0111\u01b0\u1eddng k\u00ednh v\u00e0 dung sai ch\u1ebf t\u1ea1o; m\u00e9p l\u1ed7 v\u00e1t ph\u00e1 ba via \u0111\u1ec3 gi\u1ea3m t\u1eadp trung \u1ee9ng su\u1ea5t v\u00e0 \u0103n m\u00f2n k\u1ebd h\u1edf.<\/p>\n<h3>\u1ed0c v\u00edt cho t\u00f4n\/t\u1ea5m m\u1ecfng (t\u1ef1 ren, t\u1ea1o ren, t\u1ef1 khoan)<\/h3>\n<p>&#8211; \u01afu \u0111i\u1ec3m: L\u1eafp nhanh 1 ph\u00eda, kh\u00f4ng c\u1ea7n \u0111ai \u1ed1c; ph\u00f9 h\u1ee3p v\u1ecf m\u00e1y, t\u1ee7 \u0111i\u1ec7n, \u1ed1ng gi\u00f3, panel.<br \/>\n&#8211; Nh\u01b0\u1ee3c \u0111i\u1ec3m: Kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i gi\u1edbi h\u1ea1n b\u1edfi \u0111\u1ed9 d\u00e0y t\u1ea5m v\u00e0 chi\u1ec1u \u0103n ren; r\u1ee7i ro \u201ctu\u1ed9t ren\u201d khi qu\u00e1 l\u1ef1c; kh\u00f3 t\u00e1i si\u1ebft nhi\u1ec1u l\u1ea7n.<br \/>\n&#8211; Khuy\u1ebfn ngh\u1ecb:<br \/>\n  &#8211; D\u00f9ng v\u00edt t\u1ea1o ren theo DIN 7500 cho kim lo\u1ea1i; v\u00edt t\u1ef1 khoan c\u00f3 m\u0169i khoan cho k\u1ebft c\u1ea5u m\u1ecfng (ch\u00fa \u00fd t\u1ed1c \u0111\u1ed9\/khoan ngu\u1ed9i \u0111\u1ec3 tr\u00e1nh ch\u00e1y c\u1ea1nh l\u1ed7).<br \/>\n  &#8211; Chi\u1ec1u \u0103n ren hi\u1ec7u qu\u1ea3 \u22652\u20133 l\u1ea7n b\u01b0\u1edbc ren \u0111\u1ed1i v\u1edbi inox t\u1ea5m; tr\u00e1nh si\u1ebft v\u01b0\u1ee3t m\u00f4-men khuy\u1ebfn ngh\u1ecb c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t.<br \/>\n  &#8211; V\u1edbi t\u1ea5m r\u1ea5t m\u1ecfng, d\u00f9ng \u0111ai \u1ed1c rive (rivet nut) \u0111\u1ec3 t\u1ea1o ren b\u1ec1n v\u1eefng.<\/p>\n<h3>Rivet (\u0111inh t\u00e1n m\u00f9, \u0111inh t\u00e1n k\u1ebft c\u1ea5u)<\/h3>\n<p>&#8211; \u01afu \u0111i\u1ec3m: L\u1eafp t\u1eeb m\u1ed9t ph\u00eda, nhanh, \u1ed5n \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng, ph\u00f9 h\u1ee3p t\u1ea5m m\u1ecfng v\u00e0 v\u1eadt li\u1ec7u kh\u00e1c nhau. Rivet \u201ck\u00edn\u201d (closed-end) v\u00e0 c\u00f3 long \u0111en cao su\/EPDM cho y\u00eau c\u1ea7u ch\u1ed1ng n\u01b0\u1edbc.<br \/>\n&#8211; Nh\u01b0\u1ee3c \u0111i\u1ec3m: Kh\u00f4ng th\u00e1o l\u1eafp t\u00e1i s\u1eed d\u1ee5ng; kh\u1ea3 n\u0103ng ch\u1ecbu k\u00e9o th\u1ea5p h\u01a1n bu l\u00f4ng; m\u1ecfi \u1edf t\u1ea3i chu k\u1ef3 cao c\u1ea7n lo\u1ea1i rivet k\u1ebft c\u1ea5u chuy\u00ean d\u1ee5ng.<br \/>\n&#8211; Khuy\u1ebfn ngh\u1ecb:<br \/>\n  &#8211; Khoan l\u1ed7 \u0111\u00fang \u0111\u01b0\u1eddng k\u00ednh n\u1edf c\u1ee7a rivet (th\u01b0\u1eddng +0.1 \u0111\u1ebfn +0.2 mm so v\u1edbi th\u00e2n), lo\u1ea1i b\u1ecf ba via; kho\u1ea3ng c\u00e1ch m\u00e9p e \u22651.5d \u0111\u1ebfn 2.0d, b\u01b0\u1edbc p \u22653d \u0111\u1ebfn 6d (d l\u00e0 \u0111\u01b0\u1eddng k\u00ednh th\u00e2n \u0111inh).<br \/>\n  &#8211; Ch\u1ecdn v\u1eadt li\u1ec7u rivet t\u01b0\u01a1ng th\u00edch \u0103n m\u00f2n (inox v\u1edbi inox\/nh\u00f4m s\u01a1n c\u00e1ch ly); d\u00f9ng mandrel gi\u1eef l\u1ea1i (lock) cho t\u1ea3i rung.<\/p>\n<h2 id=\"toc-3-thiet-ke-va-tinh-toan-so-bo-nguyen-tac-thuc-dung\">Thi\u1ebft k\u1ebf v\u00e0 t\u00ednh to\u00e1n s\u01a1 b\u1ed9: nguy\u00ean t\u1eafc th\u1ef1c d\u1ee5ng<\/h2>\n<p>&#8211; V\u1eadt li\u1ec7u fastener:<br \/>\n  &#8211; ISO 3506: A2-70\/A2-80 cho m\u00f4i tr\u01b0\u1eddng trong nh\u00e0; A4-70\/A4-80 (Mo) cho n\u01b0\u1edbc bi\u1ec3n\/h\u00f3a ch\u1ea5t clorua. Tr\u00e1nh tr\u1ed9n inox v\u1edbi th\u00e9p carbon m\u1ea1 k\u1ebdm t\u1ea1i v\u00f9ng \u1ea9m m\u1eb7n \u0111\u1ec3 kh\u00f4ng t\u1ea1o pin \u0111i\u1ec7n h\u00f3a; n\u1ebfu b\u1eaft bu\u1ed9c, c\u00e1ch \u0111i\u1ec7n b\u1eb1ng long \u0111en nh\u1ef1a\/ti\u1ec7n b\u1ec1 m\u1eb7t s\u01a1n ph\u1ee7.<br \/>\n&#8211; T\u1ea3i tr\u1ecdng v\u00e0 b\u1ed1 tr\u00ed:<br \/>\n  &#8211; \u01afu ti\u00ean \u0111\u1eb7t m\u1ed1i gh\u00e9p ch\u1ecbu c\u1eaft \u0111\u1ed1i v\u1edbi rivet\/v\u00edt t\u1ea5m m\u1ecfng; v\u1edbi bu l\u00f4ng c\u00f3 ti\u1ec1n t\u1ea3i, li\u00ean k\u1ebft ma s\u00e1t gi\u1ea3m tr\u01b0\u1ee3t t\u1ed1t cho t\u1ea3i \u0111\u1ed9ng.<br \/>\n  &#8211; Kho\u1ea3ng c\u00e1ch m\u00e9p v\u00e0 b\u01b0\u1edbc l\u1ed7 nh\u01b0 g\u1ee3i \u00fd \u1edf tr\u00ean; t\u0103ng chi\u1ec1u d\u00e0y \u0111\u1ec7m gia c\u01b0\u1eddng (doubler plate) t\u1ea1i v\u00f9ng ch\u1ecbu t\u1ea3i t\u1eadp trung tr\u00ean t\u1ea5m m\u1ecfng.<br \/>\n&#8211; M\u00f4-men si\u1ebft:<br \/>\n  &#8211; D\u00f9ng quan h\u1ec7 T \u2248 K\u00b7F\u00b7d (K\u22480.18\u20130.25 khi b\u00f4i tr\u01a1n) v\u1edbi F ~ 0.7\u00d7 t\u1ea3i b\u1eb1ng ch\u1ee9ng (proof load) c\u1ee7a c\u1ea5p b\u1ec1n; ki\u1ec3m tra theo ISO 16047 ho\u1eb7c theo b\u1ea3ng nh\u00e0 s\u1ea3n xu\u1ea5t. Tr\u00e1nh si\u1ebft kh\u00f4 tr\u00ean ren inox.<br \/>\n&#8211; Ch\u1ed1ng l\u1ecfng:<br \/>\n  &#8211; Ch\u1ecdn \u0111ai \u1ed1c t\u1ef1 h\u00e3m, keo kh\u00f3a ren ph\u00f9 h\u1ee3p nhi\u1ec7t \u0111\u1ed9, ho\u1eb7c si\u1ebft ti\u1ec1n t\u1ea3i v\u00e0 ki\u1ec3m tra l\u1ea1i sau 24 gi\u1edd. V\u1edbi rung m\u1ea1nh, c\u00e2n nh\u1eafc \u0111ai \u1ed1c hai l\u1edbp (jam nut) ho\u1eb7c v\u00f2ng h\u00e3m c\u01a1 kh\u00ed.<br \/>\n&#8211; \u0102n m\u00f2n k\u1ebd h\u1edf v\u00e0 ho\u00e0n thi\u1ec7n:<br \/>\n  &#8211; B\u1ecbt k\u00edn khe b\u1eb1ng sealant trung t\u00ednh (silicone\/PU t\u01b0\u01a1ng th\u00edch), rivet k\u00edn, long \u0111en \u0111\u1ec7m; v\u1ec7 sinh, t\u1ea9y s\u1ea1ch phoi v\u00e0 passivate b\u1ec1 m\u1eb7t c\u1eaft\/khoan \u0111\u1ec3 ph\u1ee5c h\u1ed3i m\u00e0ng th\u1ee5 \u0111\u1ed9ng c\u1ee7a inox.<br \/>\n&#8211; Gi\u00e3n n\u1edf nhi\u1ec7t:<br \/>\n  &#8211; Cho c\u00e1c t\u1ea5m d\u00e0i ngo\u00e0i tr\u1eddi, d\u00f9ng l\u1ed7 oval v\u00e0 long \u0111en l\u1edbn, \u0111\u1ecbnh v\u1ecb m\u1ed9t \u0111i\u1ec3m c\u1ed1 \u0111\u1ecbnh v\u00e0 c\u00e1c \u0111i\u1ec3m tr\u01b0\u1ee3t.<\/p>\n<p>Tham kh\u1ea3o thi\u1ebft k\u1ebf chi ti\u1ebft theo EN 1993-1-4 (Eurocode inox) ho\u1eb7c h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t fastener\/rivet.<\/p>\n<h2 id=\"toc-4-quy-trinh-lap-dat-chuan-goi-y-thuc-hanh\">Quy tr\u00ecnh l\u1eafp \u0111\u1eb7t chu\u1ea9n (g\u1ee3i \u00fd th\u1ef1c h\u00e0nh)<\/h2>\n<h3>Bulong\/\u0111ai \u1ed1c<\/h3>\n<p>1) L\u1eadp b\u1ea3n v\u1ebd l\u1ed7, ch\u1ecdn c\u1ea5p b\u1ec1n v\u00e0 l\u1edbp ph\u1ee7\/ph\u1ee5 ki\u1ec7n ph\u00f9 h\u1ee3p m\u00f4i tr\u01b0\u1eddng.<br \/>\n2) Khoan\/\u0111\u1ed9t l\u1ed7 \u0111\u00fang dung sai, ph\u00e1 ba via, l\u00e0m s\u1ea1ch d\u1ea7u m\u1ee1\/phoi.<br \/>\n3) B\u00f4i m\u1ee1 ch\u1ed1ng k\u1eb9t l\u00ean ren\/m\u1eb7t t\u1ef1a; l\u1eafp long \u0111en ph\u1eb3ng.<br \/>\n4) Si\u1ebft s\u01a1 b\u1ed9 theo tr\u00ecnh t\u1ef1 \u0111\u1ed1i x\u1ee9ng; si\u1ebft cu\u1ed1i theo m\u00f4-men\/b\u01b0\u1edbc g\u00f3c (torque-angle) c\u00f3 ki\u1ec3m ch\u1ee9ng.<br \/>\n5) \u0110\u00e1nh d\u1ea5u ki\u1ec3m so\u00e1t (torque mark) v\u00e0 nghi\u1ec7m thu ng\u1eabu nhi\u00ean b\u1eb1ng c\u1edd l\u00ea l\u1ef1c.<\/p>\n<h3>\u1ed0c v\u00edt t\u1ea5m m\u1ecfng<\/h3>\n<p>1) Ch\u1ecdn v\u00edt ph\u00f9 h\u1ee3p (t\u1ef1 khoan\/t\u1ef1 ren\/t\u1ea1o ren DIN 7500) v\u00e0 m\u0169i\/khoan \u0111\u00fang t\u1ed1c \u0111\u1ed9, c\u00f3 dung d\u1ecbch l\u00e0m m\u00e1t.<br \/>\n2) \u0110\u1eb7t \u00e1p l\u1ef1c tr\u1ee5c v\u1eeba \u0111\u1ee7, tr\u00e1nh \u201cch\u00e1y c\u1ea1nh\u201d v\u00e0 x\u00e9 t\u1ea5m; ki\u1ec3m so\u00e1t chi\u1ec1u \u0103n ren t\u1ed1i thi\u1ec3u.<br \/>\n3) Si\u1ebft \u0111\u1ebfn khi long \u0111en \u00e9p \u0111\u1ec1u; kh\u00f4ng \u201cqu\u00e1 l\u1ef1c\u201d g\u00e2y tu\u1ed9t ren.<\/p>\n<h3>Rivet<\/h3>\n<p>1) Khoan l\u1ed7 k\u00edch th\u01b0\u1edbc ph\u00f9 h\u1ee3p, l\u00e0m s\u1ea1ch v\u00e0 kh\u1eed ba via; l\u1eafp long \u0111en n\u1ebfu c\u1ea7n tr\u1ea3i l\u1ef1c.<br \/>\n2) D\u00f9ng rivet k\u00edn n\u1ebfu y\u00eau c\u1ea7u ch\u1ed1ng n\u01b0\u1edbc\/b\u1ee5i; ch\u1ecdn s\u00fang rive \u0111\u00fang l\u1ef1c k\u00e9o.<br \/>\n3) Rive \u0111\u1ebfn khi m\u0169 n\u1edf \u201c\u0111\u1ee7 ch\u00e2n\u201d; ki\u1ec3m tra mandrel \u0111\u00e3 b\u1ee9t v\u00e0 gi\u1eef (lock) n\u1ebfu l\u00e0 lo\u1ea1i k\u1ebft c\u1ea5u.<\/p>\n<h2 id=\"toc-5-ung-dung-thuc-te-tai-viet-nam\">\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf t\u1ea1i Vi\u1ec7t Nam<\/h2>\n<p>&#8211; \u1ed0ng gi\u00f3, panel v\u1ecf m\u00e1y b\u1eb1ng inox m\u1ecfng: v\u00edt t\u1ef1 khoan A2 ho\u1eb7c rivet k\u00edn, thi c\u00f4ng nhanh, h\u1ea1n ch\u1ebf cong v\u00eanh v\u00e0 bi\u1ebfn m\u00e0u do h\u00e0n.<br \/>\n&#8211; Lan can, khung l\u1eafp gh\u00e9p ngo\u00e0i tr\u1eddi\/ven bi\u1ec3n: bu l\u00f4ng A4-70\/A4-80, long \u0111en c\u00f9ng v\u1eadt li\u1ec7u, keo kh\u00f3a ren; ch\u1eeba l\u1ed7 oval cho gi\u00e3n n\u1edf.<br \/>\n&#8211; B\u1ec3 n\u01b0\u1edbc inox l\u1eafp gh\u00e9p: bu l\u00f4ng + gio\u0103ng EPDM, d\u1ec5 v\u1eadn chuy\u1ec3n v\u00e0 b\u1ea3o tr\u00ec gio\u0103ng; si\u1ebft theo tr\u00ecnh t\u1ef1 ch\u00e9o \u0111\u1ec3 k\u00edn n\u01b0\u1edbc.<br \/>\n&#8211; T\u1ee7 \u0111i\u1ec7n, t\u1ee7 \u0111i\u1ec1u khi\u1ec3n inox: v\u00edt t\u1ea1o ren DIN 7500, \u0111ai \u1ed1c rive cho t\u1ea5m m\u1ecfng; d\u00f9ng gio\u0103ng k\u00edn IP v\u1edbi long \u0111en \u0111\u1ec7m cao su.<br \/>\n&#8211; M\u1eb7t d\u1ef1ng\/\u1ed1p inox ki\u1ebfn tr\u00fac: rivet s\u01a1n \u0111\u1ed3ng m\u00e0u ho\u1eb7c bu l\u00f4ng \u1ea9n; gi\u1ea3i ph\u00e1p l\u1ed7 tr\u01b0\u1ee3t \u0111\u1ec3 h\u1ea1n ch\u1ebf \u201coil-canning\u201d.<\/p>\n<h2 id=\"toc-6-khi-nao-khong-nen-dung-bulongrivet-ma-nen-han\">Khi n\u00e0o KH\u00d4NG n\u00ean d\u00f9ng bulong\/rivet m\u00e0 n\u00ean h\u00e0n<\/h2>\n<p>&#8211; Y\u00eau c\u1ea7u v\u1ec7 sinh v\u00f4 k\u1ebd h\u1edf (CIP\/SIP) trong th\u1ef1c ph\u1ea9m\/d\u01b0\u1ee3c: m\u1ed1i h\u00e0n li\u00ean t\u1ee5c, m\u00e0i nh\u1eb5n, passivation theo ti\u00eau chu\u1ea9n v\u1ec7 sinh.<br \/>\n&#8211; Thi\u1ebft b\u1ecb \u00e1p l\u1ef1c\/k\u00edn kh\u00ed-k\u00edn n\u01b0\u1edbc tuy\u1ec7t \u0111\u1ed1i: b\u00ecnh \u00e1p l\u1ef1c, \u1ed1ng d\u1eabn m\u00f4i ch\u1ea5t nguy hi\u1ec3m\u2014tu\u00e2n theo ti\u00eau chu\u1ea9n h\u00e0n v\u00e0 ki\u1ec3m tra kh\u00f4ng ph\u00e1 h\u1ee7y.<br \/>\n&#8211; Chi ti\u1ebft m\u1ef9 thu\u1eadt \u201cli\u1ec1n t\u1ea5m\u201d ho\u1eb7c ch\u1ecbu m\u1ecfi cao \u1edf v\u00f9ng kh\u00f4ng b\u1ed1 tr\u00ed \u0111\u01b0\u1ee3c m\u1ed1i gh\u00e9p bu l\u00f4ng ti\u1ec1n t\u1ea3i: \u01b0u ti\u00ean h\u00e0n theo quy ph\u1ea1m chuy\u00ean ng\u00e0nh.<\/p>\n<h2 id=\"toc-7-chi-phi-va-tien-do-buc-tranh-tong-the\">Chi ph\u00ed v\u00e0 ti\u1ebfn \u0111\u1ed9: b\u1ee9c tranh t\u1ed5ng th\u1ec3<\/h2>\n<p>&#8211; C\u01a1 kh\u00ed l\u1eafp gh\u00e9p th\u01b0\u1eddng gi\u1ea3m chi ph\u00ed nh\u00e2n c\u00f4ng tay ngh\u1ec1 cao, r\u00fat ng\u1eafn th\u1eddi gian hi\u1ec7n tr\u01b0\u1eddng, \u00edt ph\u1ea3i x\u1eed l\u00fd b\u1ec1 m\u1eb7t sau thi c\u00f4ng.<br \/>\n&#8211; H\u00e0n c\u00f3 th\u1ec3 ti\u1ebft ki\u1ec7m linh ki\u1ec7n ph\u1ee5 (kh\u00f4ng t\u1ed1n fastener) nh\u01b0ng t\u0103ng th\u1eddi gian chu\u1ea9n b\u1ecb, g\u00e1 l\u1eafp, ki\u1ec3m so\u00e1t bi\u1ebfn d\u1ea1ng, v\u00e0 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t.<br \/>\n&#8211; T\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu (TCO) th\u01b0\u1eddng nghi\u00eang v\u1ec1 bulong\/rivet cho s\u1ea3n ph\u1ea9m modul h\u00f3a, l\u1eafp gh\u00e9p, ho\u1eb7c t\u1ea5m m\u1ecfng; c\u00f2n h\u00e0n t\u1ed1i \u01b0u cho k\u1ebft c\u1ea5u to\u00e0n kh\u1ed1i, y\u00eau c\u1ea7u k\u00edn v\u00e0 m\u1ef9 thu\u1eadt li\u1ec1n m\u1ea1ch.<\/p>\n<h2 id=\"toc-8-tieu-chuan-va-tai-lieu-tham-khao\">Ti\u00eau chu\u1ea9n v\u00e0 t\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n<p>&#8211; ISO 3506: Mechanical properties of corrosion-resistant stainless steel fasteners (A2, A4; class 50\/70\/80).<br \/>\n&#8211; ISO 16047: Fasteners\u2014Torque\/clamp force testing, ph\u1ee5c v\u1ee5 x\u00e1c l\u1eadp m\u00f4-men si\u1ebft.<br \/>\n&#8211; EN 1993-1-4 (Eurocode 3): Thi\u1ebft k\u1ebf k\u1ebft c\u1ea5u th\u00e9p kh\u00f4ng g\u1ec9 (li\u00ean k\u1ebft c\u01a1 kh\u00ed v\u00e0 \u0111\u1eb7c t\u00ednh v\u1eadt li\u1ec7u).<br \/>\n&#8211; AWS D1.6\/D1.6M: Structural Welding Code\u2014Stainless Steel (\u0111\u1ed1i chi\u1ebfu khi c\u00e2n nh\u1eafc h\u00e0n).<br \/>\n&#8211; SSINA\/BSSA Guidelines: L\u1ef1a ch\u1ecdn fastener inox, tr\u00e1nh galling v\u00e0 \u0103n m\u00f2n k\u1ebd h\u1edf (t\u00e0i li\u1ec7u c\u1ee7a SSINA, BSSA).<br \/>\n&#8211; H\u01b0\u1edbng d\u1eabn nh\u00e0 s\u1ea3n xu\u1ea5t rivet\/bulong (Huck, POP, Hilti, etc.) v\u1ec1 kho\u1ea3ng c\u00e1ch m\u00e9p, k\u00edch l\u1ed7, v\u00e0 t\u1ea3i tr\u1ecdng danh \u0111\u1ecbnh.<\/p>\n<h2 id=\"toc-9-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>&#8211; H\u00e3y ch\u1ecdn bulong\/\u1ed1c v\u00edt\/rivet khi: c\u1ea7n th\u00e1o l\u1eafp\/b\u1ea3o tr\u00ec; t\u1ea5m inox m\u1ecfng d\u1ec5 bi\u1ebfn d\u1ea1ng; thi c\u00f4ng hi\u1ec7n tr\u01b0\u1eddng nhanh; gh\u00e9p d\u1ecb v\u1eadt li\u1ec7u; c\u1ea7n cho ph\u00e9p gi\u00e3n n\u1edf; ho\u1eb7c t\u1ed1i \u01b0u chi ph\u00ed chu k\u1ef3.<br \/>\n&#8211; \u01afu ti\u00ean h\u00e0n khi: \u0111\u00f2i h\u1ecfi k\u00edn tuy\u1ec7t \u0111\u1ed1i, v\u1ec7 sinh \u201ckh\u00f4ng k\u1ebd h\u1edf\u201d, th\u1ea9m m\u1ef9 li\u1ec1n t\u1ea5m, ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n m\u1ecfi\/\u00e1p l\u1ef1c \u0111\u1eb7c th\u00f9 b\u1eaft bu\u1ed9c theo quy chu\u1ea9n.<br \/>\n&#8211; Quy\u1ebft \u0111\u1ecbnh \u0111\u00fang d\u1ef1a tr\u00ean: m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n (ch\u1ecdn A2\/A4, l\u1edbp b\u1ec1n 70\/80), ki\u1ec3u t\u1ea3i (k\u00e9o\/c\u1eaft\/m\u1ecfi), \u0111\u1ed9 d\u00e0y t\u1ea5m, kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn m\u1ed9t hay hai ph\u00eda, v\u00e0 y\u00eau c\u1ea7u v\u1eadn h\u00e0nh sau n\u00e0y.<\/p>\n<p>C\u1ea7n h\u1ed7 tr\u1ee3 ch\u1ecdn gi\u1ea3i ph\u00e1p li\u00ean k\u1ebft t\u1ed1i \u01b0u v\u00e0 b\u00e1o gi\u00e1 v\u1eadt t\u01b0 inox\/fastener \u0111\u1ea1t chu\u1ea9n? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh: Hotline 0343.417.281 \u2014 Email inoxcongnghiep.cuongthinh@gmail.com. Ch\u00fang t\u00f4i t\u01b0 v\u1ea5n k\u1ef9 thu\u1eadt v\u00e0 cung \u1ee9ng \u0111\u00fang ti\u00eau chu\u1ea9n, \u0111\u00fang ti\u1ebfn \u0111\u1ed9, t\u1ed1i \u01b0u chi ph\u00ed cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>So s\u00e1nh h\u00e0n v\u1edbi bulong, \u1ed1c v\u00edt, rivet cho inox. H\u01b0\u1edbng d\u1eabn quy\u1ebft \u0111\u1ecbnh, ti\u00eau chu\u1ea9n, thi\u1ebft k\u1ebf, l\u1eafp \u0111\u1eb7t v\u00e0 v\u00ed d\u1ee5 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf t\u1ea1i Vi\u1ec7t Nam.<\/p>\n","protected":false},"author":7,"featured_media":1061,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1850","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\/1850","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=1850"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1850\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1061"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1850"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1850"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1850"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}