{"id":1131,"date":"2025-04-21T07:47:14","date_gmt":"2025-04-21T07:47:14","guid":{"rendered":"https:\/\/thegioibulongocvit.vn\/tintuc\/?p=1131"},"modified":"2025-09-29T08:44:39","modified_gmt":"2025-09-29T08:44:39","slug":"kiem-tra-chat-luong-bu-long","status":"publish","type":"post","link":"https:\/\/thegioibulongocvit.vn\/tintuc\/kiem-tra-chat-luong-bu-long\/","title":{"rendered":"C\u00e1ch Ki\u1ec3m Tra Ch\u1ea5t L\u01b0\u1ee3ng Bu L\u00f4ng Nh\u01b0 Th\u1ebf N\u00e0o?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_53 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6ad020d0351a8\"><span class=\"\"><span style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6ad020d0351a8\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/thegioibulongocvit.vn\/tintuc\/kiem-tra-chat-luong-bu-long\/#Cach_Kiem_Tra_Chat_Luong_Bu_Long_Nhu_The_Nao\" title=\"C\u00e1ch Ki\u1ec3m Tra Ch\u1ea5t L\u01b0\u1ee3ng Bu L\u00f4ng Nh\u01b0 Th\u1ebf N\u00e0o?\">C\u00e1ch Ki\u1ec3m Tra Ch\u1ea5t L\u01b0\u1ee3ng Bu L\u00f4ng Nh\u01b0 Th\u1ebf N\u00e0o?<\/a><ul class='ez-toc-list-level-2'><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/thegioibulongocvit.vn\/tintuc\/kiem-tra-chat-luong-bu-long\/#1_Kiem_Tra_Bang_Mat_Thuong_Visual_Inspection\" title=\"1. Ki\u1ec3m Tra B\u1eb1ng M\u1eaft Th\u01b0\u1eddng (Visual Inspection)\">1. Ki\u1ec3m Tra B\u1eb1ng M\u1eaft Th\u01b0\u1eddng (Visual Inspection)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/thegioibulongocvit.vn\/tintuc\/kiem-tra-chat-luong-bu-long\/#2_Kiem_Tra_Kich_Thuoc_Bang_Dung_Cu_Do\" title=\"2. Ki\u1ec3m Tra K\u00edch Th\u01b0\u1edbc B\u1eb1ng D\u1ee5ng C\u1ee5 \u0110o\">2. Ki\u1ec3m Tra K\u00edch Th\u01b0\u1edbc B\u1eb1ng D\u1ee5ng C\u1ee5 \u0110o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/thegioibulongocvit.vn\/tintuc\/kiem-tra-chat-luong-bu-long\/#3_Kiem_Tra_Do_Cung_Hardness_Test\" title=\"3. Ki\u1ec3m Tra \u0110\u1ed9 C\u1ee9ng (Hardness Test)\">3. Ki\u1ec3m Tra \u0110\u1ed9 C\u1ee9ng (Hardness Test)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/thegioibulongocvit.vn\/tintuc\/kiem-tra-chat-luong-bu-long\/#4_Kiem_Tra_Thanh_Phan_Hoa_Hoc_Chemical_Composition\" title=\"4. Ki\u1ec3m Tra Th\u00e0nh Ph\u1ea7n H\u00f3a H\u1ecdc (Chemical Composition)\">4. Ki\u1ec3m Tra Th\u00e0nh Ph\u1ea7n H\u00f3a H\u1ecdc (Chemical Composition)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/thegioibulongocvit.vn\/tintuc\/kiem-tra-chat-luong-bu-long\/#5_Kiem_Tra_Do_Ben_Keo_Tensile_Strength_Test\" title=\"5. Ki\u1ec3m Tra \u0110\u1ed9 B\u1ec1n K\u00e9o (Tensile Strength Test)\">5. Ki\u1ec3m Tra \u0110\u1ed9 B\u1ec1n K\u00e9o (Tensile Strength Test)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/thegioibulongocvit.vn\/tintuc\/kiem-tra-chat-luong-bu-long\/#6_Kiem_Tra_Chung_Nhan_Ho_So_Chat_Luong\" title=\"6. Ki\u1ec3m Tra Ch\u1ee9ng Nh\u1eadn &amp; H\u1ed3 S\u01a1 Ch\u1ea5t L\u01b0\u1ee3ng\">6. Ki\u1ec3m Tra Ch\u1ee9ng Nh\u1eadn &amp; H\u1ed3 S\u01a1 Ch\u1ea5t L\u01b0\u1ee3ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/thegioibulongocvit.vn\/tintuc\/kiem-tra-chat-luong-bu-long\/#7_Kiem_Tra_Do_Bam_Cua_Lop_Ma_Doi_Voi_Bu_Long_Ma_Kem\" title=\"7. Ki\u1ec3m Tra \u0110\u1ed9 B\u00e1m C\u1ee7a L\u1edbp M\u1ea1 (\u0110\u1ed1i V\u1edbi Bu L\u00f4ng M\u1ea1 K\u1ebdm)\">7. Ki\u1ec3m Tra \u0110\u1ed9 B\u00e1m C\u1ee7a L\u1edbp M\u1ea1 (\u0110\u1ed1i V\u1edbi Bu L\u00f4ng M\u1ea1 K\u1ebdm)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/thegioibulongocvit.vn\/tintuc\/kiem-tra-chat-luong-bu-long\/#8_Lua_Chon_Nha_Cung_Cap_Uy_Tin\" title=\"8. L\u1ef1a Ch\u1ecdn Nh\u00e0 Cung C\u1ea5p Uy T\u00edn\">8. L\u1ef1a Ch\u1ecdn Nh\u00e0 Cung C\u1ea5p Uy T\u00edn<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/thegioibulongocvit.vn\/tintuc\/kiem-tra-chat-luong-bu-long\/#Ket_Luan\" title=\"K\u1ebft Lu\u1eadn\">K\u1ebft Lu\u1eadn<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/thegioibulongocvit.vn\/tintuc\/kiem-tra-chat-luong-bu-long\/#Can_Tu_Van_Kiem_Tra_Bu_Long_Theo_Tieu_Chuan\" title=\"C\u1ea7n T\u01b0 V\u1ea5n &amp; Ki\u1ec3m Tra Bu L\u00f4ng Theo Ti\u00eau Chu\u1ea9n?\">C\u1ea7n T\u01b0 V\u1ea5n &amp; Ki\u1ec3m Tra Bu L\u00f4ng Theo Ti\u00eau Chu\u1ea9n?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1 style=\"text-align: center;\"><span class=\"ez-toc-section\" id=\"Cach_Kiem_Tra_Chat_Luong_Bu_Long_Nhu_The_Nao\"><\/span>C\u00e1ch Ki\u1ec3m Tra Ch\u1ea5t L\u01b0\u1ee3ng Bu L\u00f4ng Nh\u01b0 Th\u1ebf N\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p><strong>Bu l\u00f4ng l\u00e0 chi ti\u1ebft li\u00ean k\u1ebft nh\u1ecf nh\u01b0ng \u0111\u00f3ng vai tr\u00f2 c\u1ef1c k\u1ef3 quan tr\u1ecdng trong m\u1ecdi c\u00f4ng tr\u00ecnh t\u1eeb nh\u00e0 d\u00e2n d\u1ee5ng, nh\u00e0 x\u01b0\u1edfng, h\u1ec7 th\u1ed1ng c\u01a1 \u0111i\u1ec7n cho \u0111\u1ebfn h\u1ea1 t\u1ea7ng giao th\u00f4ng. M\u1ed9t bu l\u00f4ng k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng c\u00f3 th\u1ec3 g\u00e2y \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn to\u00e0n b\u1ed9 k\u1ebft c\u1ea5u.<\/strong><\/p>\n<p>V\u1eady l\u00e0m sao \u0111\u1ec3 ki\u1ec3m tra bu l\u00f4ng c\u00f3 \u0111\u1ea1t ti\u00eau chu\u1ea9n ch\u1ea5t l\u01b0\u1ee3ng hay kh\u00f4ng? C\u00f9ng Nam An t\u00ecm hi\u1ec3u chi ti\u1ebft trong b\u00e0i vi\u1ebft sau.<\/p>\n<hr class=\"\" data-start=\"690\" data-end=\"693\" \/>\n<h2 class=\"\" data-start=\"695\" data-end=\"749\"><span class=\"ez-toc-section\" id=\"1_Kiem_Tra_Bang_Mat_Thuong_Visual_Inspection\"><\/span>1. <strong data-start=\"701\" data-end=\"749\">Ki\u1ec3m Tra B\u1eb1ng M\u1eaft Th\u01b0\u1eddng (Visual Inspection)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"\" data-start=\"751\" data-end=\"807\">\u0110\u00e2y l\u00e0 b\u01b0\u1edbc ki\u1ec3m tra \u0111\u01a1n gi\u1ea3n nh\u01b0ng quan tr\u1ecdng \u0111\u1ea7u ti\u00ean.<\/p>\n<ul>\n<li data-start=\"811\" data-end=\"873\"><strong data-start=\"811\" data-end=\"829\">B\u1ec1 m\u1eb7t bu l\u00f4ng<\/strong>: ph\u1ea3i m\u1ecbn, kh\u00f4ng c\u00f3 v\u1ebft n\u1ee9t, r\u1ed7, bong tr\u00f3c.<\/li>\n<li data-start=\"876\" data-end=\"962\"><strong data-start=\"876\" data-end=\"890\">L\u1edbp m\u1ea1 k\u1ebdm<\/strong>: \u0111\u1ed3ng \u0111\u1ec1u, s\u00e1ng, kh\u00f4ng b\u1ecb ph\u1ed3ng r\u1ed9p hay tr\u1ea7y x\u01b0\u1edbc (v\u1edbi bu l\u00f4ng m\u1ea1 k\u1ebdm).<\/li>\n<li data-start=\"965\" data-end=\"1034\"><strong data-start=\"965\" data-end=\"985\">Ph\u1ea7n ren bu l\u00f4ng<\/strong>: ph\u1ea3i r\u00f5 n\u00e9t, kh\u00f4ng b\u1ecb l\u1ec7ch ho\u1eb7c thi\u1ebfu b\u01b0\u1edbc ren.<\/li>\n<li data-start=\"1037\" data-end=\"1094\"><strong data-start=\"1037\" data-end=\"1050\">H\u00ecnh d\u1ea1ng<\/strong>: bu l\u00f4ng kh\u00f4ng b\u1ecb cong, m\u00e9o ho\u1eb7c bi\u1ebfn d\u1ea1ng.<\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-1137\" src=\"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2025\/04\/kiem-tra-chat-luong-bu-long-1.jpg\" alt=\"kiem-tra-chat-luong-bu-long\" width=\"600\" height=\"400\" srcset=\"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2025\/04\/kiem-tra-chat-luong-bu-long-1.jpg 600w, https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2025\/04\/kiem-tra-chat-luong-bu-long-1-300x200.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p class=\"\" data-start=\"1096\" data-end=\"1168\">=&gt; N\u1ebfu bu l\u00f4ng c\u00f3 d\u1ea5u hi\u1ec7u b\u1ea5t th\u01b0\u1eddng, n\u00ean lo\u1ea1i b\u1ecf ho\u1eb7c y\u00eau c\u1ea7u \u0111\u1ed5i tr\u1ea3.<\/p>\n<hr class=\"\" data-start=\"1170\" data-end=\"1173\" \/>\n<h2 class=\"\" data-start=\"1175\" data-end=\"1220\"><span class=\"ez-toc-section\" id=\"2_Kiem_Tra_Kich_Thuoc_Bang_Dung_Cu_Do\"><\/span>2. <strong data-start=\"1181\" data-end=\"1220\">Ki\u1ec3m Tra K\u00edch Th\u01b0\u1edbc B\u1eb1ng D\u1ee5ng C\u1ee5 \u0110o<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"\" data-start=\"1222\" data-end=\"1298\">S\u1eed d\u1ee5ng th\u01b0\u1edbc k\u1eb9p, th\u01b0\u1edbc panme ho\u1eb7c c\u00e1c thi\u1ebft b\u1ecb \u0111o chuy\u00ean d\u1ee5ng \u0111\u1ec3 ki\u1ec3m tra:<\/p>\n<ul>\n<li data-start=\"1302\" data-end=\"1346\"><strong data-start=\"1302\" data-end=\"1344\">\u0110\u01b0\u1eddng k\u00ednh th\u00e2n bu l\u00f4ng (M6, M8, M10\u2026)<\/strong><\/li>\n<li data-start=\"1349\" data-end=\"1391\"><strong data-start=\"1349\" data-end=\"1391\">Chi\u1ec1u d\u00e0i bu l\u00f4ng (50mm, 80mm, 100mm\u2026)<\/strong><\/li>\n<li data-start=\"1394\" data-end=\"1416\"><strong data-start=\"1394\" data-end=\"1416\">\u0110\u1ed9 s\u00e2u v\u00e0 b\u01b0\u1edbc ren<\/strong><\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-1139\" src=\"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2025\/04\/kiem-tra-chat-luong-bu-long-3.jpg\" alt=\"kiem-tra-chat-luong-bu-long\" width=\"600\" height=\"400\" srcset=\"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2025\/04\/kiem-tra-chat-luong-bu-long-3.jpg 600w, https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2025\/04\/kiem-tra-chat-luong-bu-long-3-300x200.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p class=\"\" data-start=\"1418\" data-end=\"1508\">=&gt; \u0110\u1ed1i chi\u1ebfu v\u1edbi b\u1ea3n v\u1ebd k\u1ef9 thu\u1eadt ho\u1eb7c ti\u00eau chu\u1ea9n DIN, JIS, ISO \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u00fang k\u00edch th\u01b0\u1edbc.<\/p>\n<hr class=\"\" data-start=\"1510\" data-end=\"1513\" \/>\n<h2 class=\"\" data-start=\"1515\" data-end=\"1557\"><span class=\"ez-toc-section\" id=\"3_Kiem_Tra_Do_Cung_Hardness_Test\"><\/span>3. <strong data-start=\"1521\" data-end=\"1557\">Ki\u1ec3m Tra \u0110\u1ed9 C\u1ee9ng (Hardness Test)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"\" data-start=\"1559\" data-end=\"1623\">\u0110\u1ed9 c\u1ee9ng ph\u1ea3n \u00e1nh kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c v\u00e0 ch\u1ed1ng m\u00e0i m\u00f2n c\u1ee7a bu l\u00f4ng.<\/p>\n<ul>\n<li data-start=\"1627\" data-end=\"1674\">Ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn: <strong data-start=\"1649\" data-end=\"1674\">Rockwell ho\u1eb7c Brinell<\/strong><\/li>\n<li data-start=\"1677\" data-end=\"1737\">\u0110\u01b0\u1ee3c \u00e1p d\u1ee5ng cho c\u00e1c bu l\u00f4ng c\u01b0\u1eddng \u0111\u1ed9 cao (8.8, 10.9, 12.9\u2026)<\/li>\n<\/ul>\n<p>=&gt; Bu l\u00f4ng c\u00f3 \u0111\u1ed9 c\u1ee9ng qu\u00e1 th\u1ea5p s\u1ebd d\u1ec5 bi\u1ebfn d\u1ea1ng khi si\u1ebft l\u1ef1c m\u1ea1nh.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-235\" src=\"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2021\/04\/luc-tai-luc-uon-luc-ben-keo.jpg\" alt=\"\" width=\"1000\" height=\"1000\" srcset=\"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2021\/04\/luc-tai-luc-uon-luc-ben-keo.jpg 1000w, https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2021\/04\/luc-tai-luc-uon-luc-ben-keo-300x300.jpg 300w, https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2021\/04\/luc-tai-luc-uon-luc-ben-keo-150x150.jpg 150w, https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2021\/04\/luc-tai-luc-uon-luc-ben-keo-768x768.jpg 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<p style=\"text-align: center;\"><em>M\u1ed9t chi\u1ebfc m\u00e1y k\u00e9o ki\u1ec3m tra \u0111\u1ed9 c\u1ee9ng c\u1ee7a bu l\u00f4ng<\/em><\/p>\n<p data-start=\"1739\" data-end=\"1804\"><div class=\"su-note\"  style=\"border-color:#e5e54c;border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;\"><div class=\"su-note-inner su-u-clearfix su-u-trim\" style=\"background-color:#FFFF66;border-color:#ffffff;color:#333333;border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;\"><a href=\"https:\/\/thegioibulongocvit.vn\/tintuc\/luc-keo-dut-cua-bu-long\/\" target=\"_blank\" rel=\"noopener\"><em><strong>Xem th\u00eam: C\u00e1ch ki\u1ec3m tra \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a bu l\u00f4ng<\/strong><\/em><\/a><\/div><\/div>\n<hr class=\"\" data-start=\"1806\" data-end=\"1809\" \/>\n<h2 class=\"\" data-start=\"1811\" data-end=\"1871\"><span class=\"ez-toc-section\" id=\"4_Kiem_Tra_Thanh_Phan_Hoa_Hoc_Chemical_Composition\"><\/span>4. <strong data-start=\"1817\" data-end=\"1871\">Ki\u1ec3m Tra Th\u00e0nh Ph\u1ea7n H\u00f3a H\u1ecdc (Chemical Composition)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"\" data-start=\"1873\" data-end=\"1984\">\u0110\u1ed1i v\u1edbi c\u00e1c d\u1ef1 \u00e1n y\u00eau c\u1ea7u cao, c\u1ea7n x\u00e1c \u0111\u1ecbnh <strong data-start=\"1917\" data-end=\"1968\">h\u00e0m l\u01b0\u1ee3ng carbon, mangan, l\u01b0u hu\u1ef3nh, photpho&#8230;<\/strong> trong v\u1eadt li\u1ec7u.<\/p>\n<ul>\n<li data-start=\"1988\" data-end=\"2031\">Ph\u00e2n t\u00edch b\u1eb1ng m\u00e1y quang ph\u1ed5 (Spectrometer)<\/li>\n<li data-start=\"2034\" data-end=\"2086\">\u0110\u1ea3m b\u1ea3o \u0111\u00fang m\u00e1c th\u00e9p: CT3, SS400, SUS304, SUS316&#8230;<\/li>\n<\/ul>\n<p class=\"\" data-start=\"2088\" data-end=\"2170\">=&gt; Vi\u1ec7c ki\u1ec3m tra gi\u00fap x\u00e1c nh\u1eadn \u0111\u00fang v\u1eadt li\u1ec7u, tr\u00e1nh tr\u01b0\u1eddng h\u1ee3p d\u00f9ng sai lo\u1ea1i th\u00e9p.<\/p>\n<hr class=\"\" data-start=\"2172\" data-end=\"2175\" \/>\n<h2 class=\"\" data-start=\"2177\" data-end=\"2230\"><span class=\"ez-toc-section\" id=\"5_Kiem_Tra_Do_Ben_Keo_Tensile_Strength_Test\"><\/span>5. <strong data-start=\"2183\" data-end=\"2230\">Ki\u1ec3m Tra \u0110\u1ed9 B\u1ec1n K\u00e9o (Tensile Strength Test)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"\" data-start=\"2232\" data-end=\"2325\">Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o l\u00e0 b\u01b0\u1edbc \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c t\u1ed1i \u0111a tr\u01b0\u1edbc khi bu l\u00f4ng b\u1ecb ph\u00e1 h\u1ee7y.<\/p>\n<ul>\n<li data-start=\"2329\" data-end=\"2394\">\u00c1p d\u1ee5ng cho bu l\u00f4ng c\u01b0\u1eddng \u0111\u1ed9 cao, neo m\u00f3ng, bu l\u00f4ng k\u1ebft c\u1ea5u th\u00e9p\u2026<\/li>\n<li data-start=\"2397\" data-end=\"2422\">\u0110\u01a1n v\u1ecb \u0111o: N\/mm\u00b2 ho\u1eb7c MPa<\/li>\n<\/ul>\n<p>=&gt; V\u00ed d\u1ee5: Bu l\u00f4ng c\u1ea5p b\u1ec1n 8.8 c\u1ea7n \u0111\u1ea1t t\u1ed1i thi\u1ec3u 800 MPa.<\/p>\n<p data-start=\"2424\" data-end=\"2480\"><img decoding=\"async\" src=\"https:\/\/thegioibulongocvit.vn\/img\/cms\/3.jpg\" alt=\"luc-keo-dut-cua-bu-long\" \/><\/p>\n<p style=\"text-align: center;\" data-start=\"2424\" data-end=\"2480\"><em>\u0110\u1eb7t th\u00eam 1 chi\u1ebfc n\u00eam d\u01b0\u1edbi \u0111\u1ea7u m\u0169 bu l\u00f4ng \u0111\u1ec3 ki\u1ec3m tra \u0111\u1ed9 b\u1ec1n k\u00e9o<\/em><\/p>\n<p data-start=\"2424\" data-end=\"2480\"><div class=\"su-note\"  style=\"border-color:#e5e54c;border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;\"><div class=\"su-note-inner su-u-clearfix su-u-trim\" style=\"background-color:#FFFF66;border-color:#ffffff;color:#333333;border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;\"><a href=\"https:\/\/thegioibulongocvit.vn\/tintuc\/luc-keo-dut-cua-bu-long\/\" target=\"_blank\" rel=\"noopener\"><strong><em>Xem c\u00e1ch ki\u1ec3m tra \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a bu l\u00f4ng<\/em><\/strong><\/a><\/div><\/div>\n<hr class=\"\" data-start=\"2482\" data-end=\"2485\" \/>\n<h2 class=\"\" data-start=\"2487\" data-end=\"2535\"><span class=\"ez-toc-section\" id=\"6_Kiem_Tra_Chung_Nhan_Ho_So_Chat_Luong\"><\/span>6. <strong data-start=\"2493\" data-end=\"2535\">Ki\u1ec3m Tra Ch\u1ee9ng Nh\u1eadn &amp; H\u1ed3 S\u01a1 Ch\u1ea5t L\u01b0\u1ee3ng<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"\" data-start=\"2537\" data-end=\"2571\">C\u00e1c lo\u1ea1i bu l\u00f4ng \u0111\u1ea1t chu\u1ea9n \u0111\u1ec1u c\u00f3:<\/p>\n<ul>\n<li data-start=\"2575\" data-end=\"2631\"><strong data-start=\"2575\" data-end=\"2605\">CO (Certificate of Origin)<\/strong> \u2013 Gi\u1ea5y ch\u1ee9ng nh\u1eadn xu\u1ea5t x\u1ee9<\/li>\n<li data-start=\"2634\" data-end=\"2694\"><strong data-start=\"2634\" data-end=\"2665\">CQ (Certificate of Quality)<\/strong> \u2013 Gi\u1ea5y ch\u1ee9ng nh\u1eadn ch\u1ea5t l\u01b0\u1ee3ng<\/li>\n<li data-start=\"2697\" data-end=\"2734\"><strong data-start=\"2697\" data-end=\"2734\">B\u1ea3n v\u1ebd k\u1ef9 thu\u1eadt v\u00e0 catalog \u0111i k\u00e8m<\/strong><\/li>\n<\/ul>\n<p data-start=\"2736\" data-end=\"2815\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-349\" src=\"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2021\/05\/ket-qua-thi-nghiem-bu-long1.jpg\" alt=\"ket-qua-thi-nghiem-bu-long1\" width=\"1350\" height=\"800\" srcset=\"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2021\/05\/ket-qua-thi-nghiem-bu-long1.jpg 1350w, https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2021\/05\/ket-qua-thi-nghiem-bu-long1-300x178.jpg 300w, https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2021\/05\/ket-qua-thi-nghiem-bu-long1-1024x607.jpg 1024w, https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2021\/05\/ket-qua-thi-nghiem-bu-long1-768x455.jpg 768w\" sizes=\"(max-width: 1350px) 100vw, 1350px\" \/><\/p>\n<p data-start=\"2736\" data-end=\"2815\">=&gt; \u0110\u00e2y l\u00e0 c\u01a1 s\u1edf ph\u00e1p l\u00fd quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ngu\u1ed3n g\u1ed1c v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m.<\/p>\n<hr class=\"\" data-start=\"2817\" data-end=\"2820\" \/>\n<h2 class=\"\" data-start=\"2822\" data-end=\"2883\"><span class=\"ez-toc-section\" id=\"7_Kiem_Tra_Do_Bam_Cua_Lop_Ma_Doi_Voi_Bu_Long_Ma_Kem\"><\/span>7. <strong data-start=\"2828\" data-end=\"2883\">Ki\u1ec3m Tra \u0110\u1ed9 B\u00e1m C\u1ee7a L\u1edbp M\u1ea1 (\u0110\u1ed1i V\u1edbi Bu L\u00f4ng M\u1ea1 K\u1ebdm)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li data-start=\"2887\" data-end=\"2934\"><strong data-start=\"2887\" data-end=\"2932\">Th\u1eed nghi\u1ec7m k\u00e9o b\u00e1m l\u1edbp m\u1ea1 (Adhesion test)<\/strong><\/li>\n<li data-start=\"2937\" data-end=\"3039\"><strong data-start=\"2937\" data-end=\"2981\">Th\u1eed nghi\u1ec7m \u0103n m\u00f2n mu\u1ed1i (Salt spray test)<\/strong> \u2013 \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 b\u1ec1n l\u1edbp m\u1ea1 trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-625\" src=\"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2023\/06\/bu-long-moc-cau-6.jpg\" alt=\"bu-long-tai-cau\" width=\"500\" height=\"500\" srcset=\"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2023\/06\/bu-long-moc-cau-6.jpg 500w, https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2023\/06\/bu-long-moc-cau-6-300x300.jpg 300w, https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2023\/06\/bu-long-moc-cau-6-150x150.jpg 150w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/p>\n<p class=\"\" data-start=\"3041\" data-end=\"3114\">=&gt; L\u1edbp m\u1ea1 t\u1ed1t gi\u00fap bu l\u00f4ng ch\u1ed1ng g\u1ec9 l\u00e2u h\u01a1n, k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u00f4ng tr\u00ecnh.<\/p>\n<hr class=\"\" data-start=\"3116\" data-end=\"3119\" \/>\n<h2 class=\"\" data-start=\"3121\" data-end=\"3159\"><span class=\"ez-toc-section\" id=\"8_Lua_Chon_Nha_Cung_Cap_Uy_Tin\"><\/span>8. <strong data-start=\"3127\" data-end=\"3159\">L\u1ef1a Ch\u1ecdn Nh\u00e0 Cung C\u1ea5p Uy T\u00edn<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"\" data-start=\"3161\" data-end=\"3239\">Cu\u1ed1i c\u00f9ng nh\u01b0ng kh\u00f4ng k\u00e9m ph\u1ea7n quan tr\u1ecdng: h\u00e3y ch\u1ecdn nh\u00e0 cung c\u1ea5p \u0111\u00e1ng tin c\u1eady.<\/p>\n<ul>\n<li data-start=\"3243\" data-end=\"3270\">C\u00f3 x\u01b0\u1edfng s\u1ea3n xu\u1ea5t tr\u1ef1c ti\u1ebfp<\/li>\n<li data-start=\"3273\" data-end=\"3306\">H\u00e0ng lu\u00f4n c\u00f3 s\u1eb5n ch\u1ee9ng ch\u1ec9 CO, CQ<\/li>\n<li data-start=\"3309\" data-end=\"3349\">C\u00f3 th\u1ec3 cung c\u1ea5p m\u1eabu th\u1eed, b\u00e1o gi\u00e1 r\u00f5 r\u00e0ng<\/li>\n<li data-start=\"3352\" data-end=\"3399\">\u0110\u01b0\u1ee3c nhi\u1ec1u nh\u00e0 th\u1ea7u v\u00e0 c\u00f4ng tr\u00ecnh l\u1edbn tin t\u01b0\u1edfng<\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-1106\" src=\"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2025\/01\/nha-may-an-phong.jpg\" alt=\"nha-may-an-phong\" width=\"1280\" height=\"720\" srcset=\"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2025\/01\/nha-may-an-phong.jpg 1280w, https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2025\/01\/nha-may-an-phong-300x169.jpg 300w, https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2025\/01\/nha-may-an-phong-1024x576.jpg 1024w, https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2025\/01\/nha-may-an-phong-768x432.jpg 768w\" sizes=\"(max-width: 1280px) 100vw, 1280px\" \/> <img decoding=\"async\" class=\"aligncenter size-full wp-image-579\" src=\"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2021\/08\/chung-nhan-chat-luong-bu-long-oc-vit2.jpg\" alt=\"chung-nhan-chat-luong-bu-long-oc-vit\" width=\"1350\" height=\"800\" srcset=\"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2021\/08\/chung-nhan-chat-luong-bu-long-oc-vit2.jpg 1350w, https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2021\/08\/chung-nhan-chat-luong-bu-long-oc-vit2-300x178.jpg 300w, https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2021\/08\/chung-nhan-chat-luong-bu-long-oc-vit2-1024x607.jpg 1024w, https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2021\/08\/chung-nhan-chat-luong-bu-long-oc-vit2-768x455.jpg 768w\" sizes=\"(max-width: 1350px) 100vw, 1350px\" \/><\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-581\" src=\"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2021\/08\/chung-nhan-chat-luong-bu-long-oc-vit4.jpg\" alt=\"chung-nhan-chat-luong-bu-long-oc-vit\" width=\"595\" height=\"776\" srcset=\"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2021\/08\/chung-nhan-chat-luong-bu-long-oc-vit4.jpg 595w, https:\/\/thegioibulongocvit.vn\/tintuc\/wp-content\/uploads\/2021\/08\/chung-nhan-chat-luong-bu-long-oc-vit4-230x300.jpg 230w\" sizes=\"(max-width: 595px) 100vw, 595px\" \/><\/p>\n<p class=\"\" data-start=\"3401\" data-end=\"3559\">=&gt; V\u00ed d\u1ee5: <strong data-start=\"3411\" data-end=\"3445\">T\u1ed5ng Kho Bu L\u00f4ng \u1ed0c V\u00edt Nam An<\/strong> \u2013 Chuy\u00ean s\u1ea3n xu\u1ea5t v\u00e0 cung c\u1ea5p bu l\u00f4ng theo y\u00eau c\u1ea7u, ch\u1ea5t l\u01b0\u1ee3ng cao, b\u00e1o gi\u00e1 t\u1eadn x\u01b0\u1edfng, giao h\u00e0ng nhanh to\u00e0n qu\u1ed1c.<\/p>\n<hr class=\"\" data-start=\"3561\" data-end=\"3564\" \/>\n<h2 class=\"\" data-start=\"3566\" data-end=\"3577\"><span class=\"ez-toc-section\" id=\"Ket_Luan\"><\/span>K\u1ebft Lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"\" data-start=\"3579\" data-end=\"3845\">Ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng bu l\u00f4ng l\u00e0 m\u1ed9t b\u01b0\u1edbc kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho c\u00f4ng tr\u00ecnh. T\u00f9y v\u00e0o quy m\u00f4 v\u00e0 y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt, b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra t\u1eeb \u0111\u01a1n gi\u1ea3n (nh\u00ecn b\u1eb1ng m\u1eaft, \u0111o k\u00edch th\u01b0\u1edbc) \u0111\u1ebfn n\u00e2ng cao (ki\u1ec3m tra \u0111\u1ed9 b\u1ec1n, th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc\u2026).<\/p>\n<p class=\"\" data-start=\"3847\" data-end=\"3943\">=&gt; <strong data-start=\"3850\" data-end=\"3943\">M\u1ed9t bu l\u00f4ng \u0111\u1ea1t chu\u1ea9n = \u0110\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng + \u0110\u1ea3m b\u1ea3o an to\u00e0n + \u0110\u1ea3m b\u1ea3o uy t\u00edn c\u00f4ng tr\u00ecnh.<\/strong><\/p>\n<hr class=\"\" data-start=\"3945\" data-end=\"3948\" \/>\n<h2 class=\"\" data-start=\"3950\" data-end=\"3999\"><span class=\"ez-toc-section\" id=\"Can_Tu_Van_Kiem_Tra_Bu_Long_Theo_Tieu_Chuan\"><\/span>C\u1ea7n T\u01b0 V\u1ea5n &amp; Ki\u1ec3m Tra Bu L\u00f4ng Theo Ti\u00eau Chu\u1ea9n?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"\" data-start=\"4001\" data-end=\"4085\">Li\u00ean h\u1ec7 <strong data-start=\"4009\" data-end=\"4019\">Nam An<\/strong> \u2013 Chuy\u00ean gia trong l\u0129nh v\u1ef1c s\u1ea3n xu\u1ea5t bu l\u00f4ng \u1ed1c v\u00edt theo y\u00eau c\u1ea7u.<\/p>\n<p data-start=\"4001\" data-end=\"4085\">\u2705 S\u1ea3n xu\u1ea5t theo b\u1ea3n v\u1ebd k\u1ef9 thu\u1eadt<br data-start=\"4118\" data-end=\"4121\" \/>\u2705 C\u1ea5p ch\u1ee9ng ch\u1ec9 CO, CQ \u0111\u1ea7y \u0111\u1ee7<br data-start=\"4150\" data-end=\"4153\" \/>\u2705 \u0110\u00e1p \u1ee9ng m\u1ecdi ti\u00eau chu\u1ea9n: DIN, JIS, ASTM, ISO\u2026<br data-start=\"4199\" data-end=\"4202\" \/>\u2705 Gi\u00e1 t\u1ea1i x\u01b0\u1edfng \u2013 Giao h\u00e0ng to\u00e0n qu\u1ed1c<\/p>\n<p><strong>C\u00d4NG TY TNHH V\u1eacT T\u01af C\u00d4NG NGHI\u1ec6P NAM AN<\/strong><\/p>\n<p><strong>T\u1ed5ng kho\/ VPGD:\u00a0<\/strong>S\u1ed1 68, Khu \u0111\u1ea5t d\u1ecbch v\u1ee5 V\u00e2n Canh, K\u0110T m\u1edbi V\u00e2n Canh, Ho\u00e0i \u0110\u1ee9c, H\u00e0 N\u1ed9i, Vi\u1ec7t Nam.<\/p>\n<p><strong>Nh\u00e0 m\u00e1y:\u00a0<\/strong>Th\u00f4n B\u1eb1ng L\u0169ng, X\u00e3 Qu\u1ea3ng Oai, Huy\u1ec7n Ba V\u00ec, TP H\u00e0 N\u1ed9i, Vi\u1ec7t Nam.<\/p>\n<p><strong>Hotline\/Zalo:\u00a0<\/strong>0941 636 369 \u2013 0983 344 163 \u2013 0983 506 389 \u2013 0376 813 369<\/p>\n<p><strong>Email:\u00a0<\/strong><a href=\"mailto:Bulongocvitnaman@gmail.com\">Bulongocvitnaman@gmail.com<\/a><\/p>\n<p><strong>K\u00eanh Youtube:<\/strong>\u00a0<a href=\"https:\/\/www.youtube.com\/@thegioibulongocvit-naman\" target=\"_blank\" rel=\"noopener\">https:\/\/www.youtube.com\/@thegioibulongocvit-naman<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00e1ch Ki\u1ec3m Tra Ch\u1ea5t L\u01b0\u1ee3ng Bu L\u00f4ng Nh\u01b0 Th\u1ebf N\u00e0o? Bu l\u00f4ng l\u00e0 chi ti\u1ebft li\u00ean k\u1ebft nh\u1ecf nh\u01b0ng \u0111\u00f3ng vai tr\u00f2 c\u1ef1c k\u1ef3 quan tr\u1ecdng trong m\u1ecdi c\u00f4ng tr\u00ecnh t\u1eeb nh\u00e0 d\u00e2n d\u1ee5ng, nh\u00e0 x\u01b0\u1edfng, h\u1ec7 th\u1ed1ng c\u01a1 \u0111i\u1ec7n cho \u0111\u1ebfn h\u1ea1 t\u1ea7ng giao th\u00f4ng. M\u1ed9t bu l\u00f4ng k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng c\u00f3 th\u1ec3 g\u00e2y [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":235,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_FSMCFIC_featured_image_caption":"","_FSMCFIC_featured_image_nocaption":"","_FSMCFIC_featured_image_hide":"","footnotes":""},"categories":[1],"tags":[233,230,237,231,229,236,234,235,232],"_links":{"self":[{"href":"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-json\/wp\/v2\/posts\/1131"}],"collection":[{"href":"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-json\/wp\/v2\/comments?post=1131"}],"version-history":[{"count":11,"href":"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-json\/wp\/v2\/posts\/1131\/revisions"}],"predecessor-version":[{"id":1264,"href":"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-json\/wp\/v2\/posts\/1131\/revisions\/1264"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-json\/wp\/v2\/media\/235"}],"wp:attachment":[{"href":"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-json\/wp\/v2\/media?parent=1131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-json\/wp\/v2\/categories?post=1131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thegioibulongocvit.vn\/tintuc\/wp-json\/wp\/v2\/tags?post=1131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}