{"id":937,"date":"2026-04-11T01:57:14","date_gmt":"2026-04-11T05:57:14","guid":{"rendered":"https:\/\/www.songhaiflange.com\/?p=937"},"modified":"2026-04-11T01:59:36","modified_gmt":"2026-04-11T05:59:36","slug":"the-complete-guide-to-flange-bolt-torquing-procedures","status":"publish","type":"post","link":"https:\/\/www.songhaiflange.com\/vi\/2026\/04\/11\/the-complete-guide-to-flange-bolt-torquing-procedures\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 quy tr\u00ecnh si\u1ebft bu-l\u00f4ng m\u1eb7t b\u00edch"},"content":{"rendered":"<h2>Gi\u1edbi thi\u1ec7u<\/h2>\n<p>Vi\u1ec7c si\u1ebft bu-l\u00f4ng \u0111\u00fang m\u00f4-men xo\u1eafn l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ed1i n\u1ed1i m\u1eb7t b\u00edch kh\u00f4ng b\u1ecb r\u00f2 r\u1ec9. M\u00f4-men xo\u1eafn kh\u00f4ng \u0111\u00fang c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn h\u01b0 h\u1ecfng mi\u1ebfng \u0111\u1ec7m, bi\u1ebfn d\u1ea1ng m\u1eb7t b\u00edch ho\u1eb7c \u00e1p su\u1ea5t l\u00e0m k\u00edn kh\u00f4ng \u0111\u1ee7. H\u01b0\u1edbng d\u1eabn n\u00e0y tr\u00ecnh b\u00e0y c\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u1ed1t nh\u1ea5t \u0111\u1ec3 si\u1ebft bu-l\u00f4ng m\u1eb7t b\u00edch.<\/p>\n<h2>T\u1ea1i sao vi\u1ec7c s\u1eed d\u1ee5ng m\u00f4-men xo\u1eafn \u0111\u00fang c\u00e1ch l\u1ea1i quan tr\u1ecdng<\/h2>\n<p>Nguy\u00ean nh\u00e2n d\u1eabn \u0111\u1ebfn vi\u1ec7c si\u1ebft bu-l\u00f4ng kh\u00f4ng \u0111\u1ee7 l\u1ef1c:<\/p>\n<ul>\n<li>\u00c1p l\u1ef1c n\u00e9n c\u1ee7a gio\u0103ng kh\u00f4ng \u0111\u1ee7<\/li>\n<li>C\u00e1c \u0111\u01b0\u1eddng r\u00f2 r\u1ec9 qua mi\u1ebfng \u0111\u1ec7m<\/li>\n<li>S\u1ef1 l\u1ecfng l\u1ebbo do rung \u0111\u1ed9ng g\u00e2y ra<\/li>\n<\/ul>\n<p>Nguy\u00ean nh\u00e2n g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng si\u1ebft qu\u00e1 l\u1ef1c:<\/p>\n<ul>\n<li>\u00c9p v\u00e0 \u0111\u00f9n gio\u0103ng<\/li>\n<li>H\u01b0 h\u1ecfng b\u1ec1 m\u1eb7t m\u1eb7t b\u00edch<\/li>\n<li>S\u1ef1 gi\u00e3n n\u1edf ho\u1eb7c h\u1ecfng h\u00f3c c\u1ee7a bu-l\u00f4ng<\/li>\n<li>Ph\u00e2n b\u1ed1 t\u1ea3i kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u<\/li>\n<\/ul>\n<h2>T\u00ednh to\u00e1n m\u00f4-men xo\u1eafn<\/h2>\n<h3>C\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n<\/h3>\n<p>T = K \u00d7 D \u00d7 P<\/p>\n<ul>\n<li>T = M\u00f4-men xo\u1eafn (Nm ho\u1eb7c ft-lbs)<\/li>\n<li>K = H\u1ec7 s\u1ed1 ma s\u00e1t (th\u01b0\u1eddng l\u00e0 0,2 \u0111\u1ed1i v\u1edbi bu l\u00f4ng c\u00f3 b\u00f4i tr\u01a1n)<\/li>\n<li>D = \u0110\u01b0\u1eddng k\u00ednh danh ngh\u0129a c\u1ee7a bu l\u00f4ng (mm ho\u1eb7c inch)<\/li>\n<li>P = L\u1ef1c n\u00e9n ban \u0111\u1ea7u mong mu\u1ed1n c\u1ee7a bu l\u00f4ng (N ho\u1eb7c lbs)<\/li>\n<\/ul>\n<h3>C\u00e1c gi\u00e1 tr\u1ecb m\u00f4-men xo\u1eafn ti\u00eau chu\u1ea9n trong ng\u00e0nh<\/h3>\n<p>\u0110\u1ed1i v\u1edbi m\u1eb7t b\u00edch ASME B16.5 c\u00f3 gio\u0103ng cu\u1ed9n xo\u1eafn \u1ed1c:<\/p>\n<ul>\n<li>Lo\u1ea1i 150: 50-70% v\u1ec1 gi\u1edbi h\u1ea1n ch\u1ea3y c\u1ee7a bu-l\u00f4ng<\/li>\n<li>Lo\u1ea1i 300-600: 60-751 TP3T c\u1ee7a gi\u1edbi h\u1ea1n ch\u1ea3y c\u1ee7a bu-l\u00f4ng<\/li>\n<li>Lo\u1ea1i 900-2500: 70-80% \u0111\u1ed9 b\u1ec1n ch\u1ea3y c\u1ee7a bu-l\u00f4ng<\/li>\n<\/ul>\n<h2>Quy tr\u00ecnh si\u1ebft bu-l\u00f4ng t\u1eebng b\u01b0\u1edbc<\/h2>\n<h3>B\u01b0\u1edbc 1: Chu\u1ea9n b\u1ecb<\/h3>\n<ul>\n<li>L\u00e0m s\u1ea1ch b\u1ec1 m\u1eb7t m\u1eb7t b\u00edch v\u00e0 ki\u1ec3m tra xem c\u00f3 h\u01b0 h\u1ecfng hay kh\u00f4ng<\/li>\n<li>Ki\u1ec3m tra lo\u1ea1i v\u00e0 t\u00ecnh tr\u1ea1ng c\u1ee7a gio\u0103ng<\/li>\n<li>B\u00f4i tr\u01a1n ren bu-l\u00f4ng v\u00e0 m\u1eb7t \u0111ai \u1ed1c<\/li>\n<li>Ki\u1ec3m tra chi\u1ec1u d\u00e0i bu-l\u00f4ng (ph\u1ea3i nh\u00f4 ra 2\u20133 ren)<\/li>\n<\/ul>\n<h3>B\u01b0\u1edbc 2: V\u1eb7n ch\u1eb7t b\u1eb1ng tay<\/h3>\n<ul>\n<li>V\u1eb7n ch\u1eb7t t\u1ea5t c\u1ea3 c\u00e1c bu-l\u00f4ng b\u1eb1ng tay<\/li>\n<li>\u0110\u1ea3m b\u1ea3o mi\u1ebfng \u0111\u1ec7m \u0111\u01b0\u1ee3c \u0111\u1eb7t ch\u00ednh gi\u1eefa \u0111\u00fang c\u00e1ch<\/li>\n<li>Ki\u1ec3m tra \u0111\u1ed9 th\u1eb3ng h\u00e0ng c\u1ee7a m\u1eb7t b\u00edch<\/li>\n<\/ul>\n<h3>B\u01b0\u1edbc 3: M\u00f4-men xo\u1eafn ban \u0111\u1ea7u (30%)<\/h3>\n<ul>\n<li>S\u1eed d\u1ee5ng hoa v\u0103n ch\u00e9o (hoa v\u0103n h\u00ecnh sao)<\/li>\n<li>\u00c1p d\u1ee5ng m\u00f4-men xo\u1eafn cu\u1ed1i c\u00f9ng 30% cho t\u1ea5t c\u1ea3 c\u00e1c bu-l\u00f4ng<\/li>\n<li>\u0110\u00e1nh s\u1ed1 c\u00e1c bu-l\u00f4ng theo th\u1ee9 t\u1ef1 \u0111\u1ec3 theo d\u00f5i<\/li>\n<\/ul>\n<h3>B\u01b0\u1edbc 4: M\u00f4-men xo\u1eafn trung gian (60%)<\/h3>\n<ul>\n<li>L\u00e0m theo c\u00f9ng m\u1ed9t ki\u1ec3u \u0111an ch\u00e9o<\/li>\n<li>T\u0103ng m\u00f4-men xo\u1eafn c\u1ef1c \u0111\u1ea1i l\u00ean 60%<\/li>\n<li>Ki\u1ec3m tra \u0111\u1ed9 \u0111\u1ec1u c\u1ee7a khe h\u1edf m\u1eb7t b\u00edch<\/li>\n<\/ul>\n<h3>B\u01b0\u1edbc 5: M\u00f4-men xo\u1eafn cu\u1ed1i c\u00f9ng (100%)<\/h3>\n<ul>\n<li>\u00c1p d\u1ee5ng m\u00f4-men xo\u1eafn 100% theo h\u00ecnh ch\u1eef th\u1eadp<\/li>\n<li>Quay hai v\u00f2ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u<\/li>\n<li>Ghi l\u1ea1i t\u1ea5t c\u1ea3 c\u00e1c gi\u00e1 tr\u1ecb m\u00f4-men xo\u1eafn<\/li>\n<\/ul>\n<h2>V\u00ed d\u1ee5 v\u1ec1 m\u00f4 h\u00ecnh m\u00f4-men xo\u1eafn<\/h2>\n<h3>M\u1eb7t b\u00edch 4 bu l\u00f4ng<\/h3>\n<p>M\u1eabu: 1 \u2192 3 \u2192 2 \u2192 4 (c\u00e1c bu-l\u00f4ng \u0111\u1ed1i di\u1ec7n)<\/p>\n<h3>M\u1eb7t b\u00edch 8 bu-l\u00f4ng<\/h3>\n<p>D\u00e3y s\u1ed1: 1 \u2192 5 \u2192 3 \u2192 7 \u2192 2 \u2192 6 \u2192 4 \u2192 8<\/p>\n<h3>M\u1eb7t b\u00edch 12 bu-l\u00f4ng<\/h3>\n<p>D\u00e3y s\u1ed1: 1 \u2192 7 \u2192 4 \u2192 10 \u2192 2 \u2192 8 \u2192 5 \u2192 11 \u2192 3 \u2192 9 \u2192 6 \u2192 12<\/p>\n<h2>D\u1ee5ng c\u1ee5 v\u00e0 thi\u1ebft b\u1ecb<\/h2>\n<ul>\n<li><strong>C\u1edd-l\u00ea m\u00f4-men xo\u1eafn \u0111\u00e3 \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n:<\/strong> \u0110i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c<\/li>\n<li><strong>C\u1edd l\u00ea m\u00f4-men xo\u1eafn th\u1ee7y l\u1ef1c:<\/strong> D\u00e0nh cho m\u1eb7t b\u00edch c\u00f3 \u0111\u01b0\u1eddng k\u00ednh l\u1edbn<\/li>\n<li><strong>B\u1ed9 nh\u00e2n m\u00f4-men xo\u1eafn:<\/strong> D\u00e0nh cho c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u m\u00f4-men xo\u1eafn cao<\/li>\n<li><strong>B\u1ed9 c\u0103ng bu-l\u00f4ng:<\/strong> D\u00e0nh cho c\u00e1c m\u1ed1i n\u1ed1i ch\u1ecbu \u00e1p su\u1ea5t cao quan tr\u1ecdng<\/li>\n<\/ul>\n<h2>Nh\u1eefng sai l\u1ea7m th\u01b0\u1eddng g\u1eb7p c\u1ea7n tr\u00e1nh<\/h2>\n<ul>\n<li>\u2717 S\u1eed d\u1ee5ng c\u1edd l\u00ea t\u00e1c \u0111\u1ed9ng (g\u00e2y ra m\u00f4-men xo\u1eafn kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u)<\/li>\n<li>\u2717 B\u1ecf qua m\u1eabu \u0111an ch\u00e9o<\/li>\n<li>\u2717 Kh\u00f4ng b\u00f4i tr\u01a1n ren<\/li>\n<li>\u2717 Kh\u00f4ng \u0111\u01b0\u1ee3c t\u00e1i s\u1eed d\u1ee5ng c\u00e1c bu-l\u00f4ng b\u1ecb h\u1ecfng ho\u1eb7c b\u1ecb gi\u00e3n<\/li>\n<li>\u2717 B\u1ecf qua vi\u1ec7c hi\u1ec7u chu\u1ea9n c\u1edd-l\u00ea m\u00f4-men xo\u1eafn (c\u1ea7n \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n h\u00e0ng n\u0103m)<\/li>\n<li>\u2717 Si\u1ebft theo th\u1ee9 t\u1ef1 v\u00f2ng tr\u00f2n thay v\u00ec theo ki\u1ec3u ch\u00e9o nhau<\/li>\n<\/ul>\n<h2>Ki\u1ec3m tra sau khi l\u1eafp \u0111\u1eb7t<\/h2>\n<ul>\n<li>Ki\u1ec3m tra b\u1eb1ng m\u1eaft th\u01b0\u1eddng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 n\u00e9n \u0111\u1ec1u c\u1ee7a gio\u0103ng<\/li>\n<li>Ki\u1ec3m tra \u0111\u1ed9 song song c\u1ee7a m\u1eb7t b\u00edch (kho\u1ea3ng h\u1edf ph\u1ea3i \u0111\u1ed3ng \u0111\u1ec1u)<\/li>\n<li>Ghi ch\u00e9p l\u1ea1i t\u1ea5t c\u1ea3 c\u00e1c gi\u00e1 tr\u1ecb m\u00f4-men xo\u1eafn v\u00e0o h\u1ed3 s\u01a1 b\u1ea3o tr\u00ec<\/li>\n<li>N\u1ebfu c\u1ea7n, h\u00e3y si\u1ebft l\u1ea1i bu-l\u00f4ng sau 24 gi\u1edd<\/li>\n<\/ul>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>Vi\u1ec7c si\u1ebft bu-l\u00f4ng \u0111\u00fang c\u00e1ch v\u1eeba l\u00e0 m\u1ed9t ngh\u1ec7 thu\u1eadt v\u1eeba l\u00e0 m\u1ed9t khoa h\u1ecdc. Tu\u00e2n th\u1ee7 c\u00e1c quy tr\u00ecnh ti\u00eau chu\u1ea9n s\u1ebd \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng an to\u00e0n, kh\u00f4ng r\u00f2 r\u1ec9 v\u00e0 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a c\u00e1c m\u1ed1i n\u1ed1i m\u1eb7t b\u00edch. Lu\u00f4n \u0111\u00e0o t\u1ea1o nh\u00e2n vi\u00ean v\u1ec1 c\u00e1c k\u1ef9 thu\u1eadt \u0111\u00fang \u0111\u1eafn v\u00e0 b\u1ea3o d\u01b0\u1ee1ng c\u00e1c d\u1ee5ng c\u1ee5 \u0111\u00e3 \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n.<\/p>\n<p><strong>WhatsApp:<\/strong>\u00a0+86-18658777855<\/p>\n<p><strong>Email:<\/strong>\u00a01007788887@qq.com<\/p>\n<p>\u2713 Ki\u1ec3m tra MTR k\u00e8m theo b\u00e1o c\u00e1o ki\u1ec3m tra kh\u00f4ng ph\u00e1 h\u1ee7y (NDT) \u2713 Ch\u00e0o \u0111\u00f3n c\u00e1c \u0111\u01a1n v\u1ecb ki\u1ec3m tra \u0111\u1ed9c l\u1eadp<a href=\"https:\/\/www.720yun.com\/vr\/a6ajt7ynrw0\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-884\" src=\"http:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4.webp\" alt=\"\" width=\"1290\" height=\"2317\" title=\"\" srcset=\"https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4.webp 1290w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-167x300.webp 167w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-570x1024.webp 570w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-768x1379.webp 768w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-855x1536.webp 855w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-1140x2048.webp 1140w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-7x12.webp 7w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-416x747.webp 416w\" sizes=\"auto, (max-width: 1290px) 100vw, 1290px\" \/><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>H\u00e3y n\u1eafm v\u1eefng k\u1ef9 thu\u1eadt si\u1ebft bu-l\u00f4ng m\u1eb7t b\u00edch v\u1edbi h\u01b0\u1edbng d\u1eabn chi ti\u1ebft n\u00e0y, bao g\u1ed3m c\u00e1ch t\u00ednh m\u00f4-men xo\u1eafn, quy tr\u00ecnh th\u1ef1c hi\u1ec7n, c\u00e1c m\u1eabu si\u1ebft v\u00e0 nh\u1eefng sai l\u1ea7m th\u01b0\u1eddng g\u1eb7p.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-937","post","type-post","status-publish","format-standard","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/posts\/937","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/comments?post=937"}],"version-history":[{"count":3,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/posts\/937\/revisions"}],"predecessor-version":[{"id":945,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/posts\/937\/revisions\/945"}],"wp:attachment":[{"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/media?parent=937"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/categories?post=937"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/tags?post=937"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}