{"id":5550,"date":"2026-07-10T10:00:49","date_gmt":"2026-07-10T01:00:49","guid":{"rendered":"https:\/\/ohtavn.com\/?post_type=media&#038;p=5550"},"modified":"2026-07-08T16:13:47","modified_gmt":"2026-07-08T07:13:47","slug":"bu-long-stud-la-gi","status":"publish","type":"media","link":"https:\/\/ohtavn.com\/vi\/media\/bu-long-stud-la-gi\/","title":{"rendered":"Gi\u1ea3i th\u00edch d\u1ec5 hi\u1ec3u trong 3 ph\u00fat &#8220;Bul\u00f4ng c\u1ea5y l\u00e0 g\u00ec?&#8221;"},"content":{"rendered":"<div class=\"el-h3\">\n<h3 dir=\"auto\" data-heading=\"Gi\u1edbi thi\u1ec7u\">Gi\u1edbi thi\u1ec7u<\/h3>\n<\/div>\n<div class=\"el-p\">\n<p class=\"isSelectedEnd\">Trong c\u00e1c nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t v\u00e0 l\u0129nh v\u1ef1c thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p, <strong>bul\u00f4ng c\u1ea5y (Stud Bolt)<\/strong> l\u00e0 m\u1ed9t chi ti\u1ebft kh\u00f4ng th\u1ec3 thi\u1ebfu, d\u00f9 th\u01b0\u1eddng \u0111\u00f3ng vai tr\u00f2 \u00e2m th\u1ea7m trong to\u00e0n b\u1ed9 k\u1ebft c\u1ea5u. Kh\u00e1c v\u1edbi bul\u00f4ng l\u1ee5c gi\u00e1c th\u00f4ng th\u01b0\u1eddng, lo\u1ea1i bul\u00f4ng n\u00e0y c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m \u0111\u1eb7c tr\u01b0ng l\u00e0 <strong>\u201ckh\u00f4ng c\u00f3 \u0111\u1ea7u bul\u00f4ng\u201d<\/strong>. V\u1eady t\u1ea1i sao bul\u00f4ng c\u1ea5y l\u1ea1i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong \u0111\u1ed9ng c\u01a1 \u00f4 t\u00f4 ho\u1eb7c t\u1ea1i c\u00e1c v\u1ecb tr\u00ed k\u1ebft n\u1ed1i m\u1eb7t b\u00edch trong nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t?<\/p>\n<p class=\"isSelectedEnd\">N\u00f3i ng\u1eafn g\u1ecdn, hai l\u00fd do l\u1edbn nh\u1ea5t \u0111\u1ec3 s\u1eed d\u1ee5ng bul\u00f4ng c\u1ea5y l\u00e0 <strong>\u201cb\u1ea3o v\u1ec7 ren c\u1ee7a v\u1eadt li\u1ec7u n\u1ec1n\u201d<\/strong> v\u00e0 <strong>\u201cthu\u1eadn ti\u1ec7n cho vi\u1ec7c th\u00e1o l\u1eafp nhi\u1ec1u l\u1ea7n\u201d<\/strong>. \u0110\u1eb7c bi\u1ec7t, t\u1ea1i nh\u1eefng v\u1ecb tr\u00ed c\u1ea7n b\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean ho\u1eb7c khi li\u00ean k\u1ebft v\u1edbi c\u00e1c v\u1eadt li\u1ec7u n\u1ec1n c\u00f3 \u0111\u1ed9 b\u1ec1n t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p nh\u01b0 nh\u00f4m \u0111\u00fac \u00e1p l\u1ef1c, bul\u00f4ng c\u1ea5y ph\u00e1t huy r\u00f5 r\u1ec7t \u01b0u \u0111i\u1ec3m c\u1ee7a m\u00ecnh.<\/p>\n<p class=\"isSelectedEnd\">Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang t\u00f4i s\u1ebd gi\u1ea3i th\u00edch nh\u1eefng n\u1ed9i dung quan tr\u1ecdng m\u00e0 b\u1ed9 ph\u1eadn thu mua v\u00e0 k\u1ef9 thu\u1eadt c\u1ea7n n\u1eafm r\u00f5 ch\u1ec9 trong kho\u1ea3ng 3 ph\u00fat, t\u1eeb ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 bul\u00f4ng c\u1ea5y, c\u00e1ch \u0111\u1ecdc c\u1ea5p b\u1ec1n theo ti\u00eau chu\u1ea9n JIS, cho \u0111\u1ebfn chi\u1ebfn l\u01b0\u1ee3c thu mua t\u1ea1i Vi\u1ec7t Nam nh\u1eb1m t\u1ed1i \u01b0u chi ph\u00ed.<\/p>\n<p>\u0110\u1ed3ng th\u1eddi, b\u00e0i vi\u1ebft c\u0169ng gi\u1edbi thi\u1ec7u nh\u1eefng l\u1ee3i \u00edch c\u1ee7a ho\u1ea1t \u0111\u1ed9ng thu mua t\u1ea1i ch\u1ed7 do <strong>Ohta Vi\u1ec7t Nam<\/strong> cung c\u1ea5p, qua \u0111\u00f3 g\u1ee3i m\u1edf c\u00e1c gi\u1ea3i ph\u00e1p gi\u00fap doanh nghi\u1ec7p th\u00e1o g\u1ee1 nh\u1eefng kh\u00f3 kh\u0103n trong c\u00f4ng t\u00e1c thu mua linh ki\u1ec7n v\u00e0 v\u1eadt t\u01b0 c\u00f4ng nghi\u1ec7p.<\/p>\n<\/div>\n<div class=\"el-h3\">\n<h3 dir=\"auto\" data-heading=\"Ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u00e0 c\u1ea5u t\u1ea1o c\u1ee7a Bulong c\u1ea5y\">Ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u00e0 c\u1ea5u t\u1ea1o c\u1ee7a Bul\u00f4ng c\u1ea5y<\/h3>\n<\/div>\n<div class=\"el-h4\">\n<h4 dir=\"auto\" data-heading=\"\u0110\u1ecbnh ngh\u0129a v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a Bulong c\u1ea5y (Stud Bolt)\">\u0110\u1ecbnh ngh\u0129a v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a Bul\u00f4ng c\u1ea5y (Stud Bolt)<\/h4>\n<\/div>\n<div class=\"el-p\">\n<p class=\"isSelectedEnd\"><strong>Bul\u00f4ng c\u1ea5y (Stud Bolt)<\/strong> l\u00e0 lo\u1ea1i bul\u00f4ng d\u1ea1ng thanh, <strong>kh\u00f4ng c\u00f3 \u0111\u1ea7u bul\u00f4ng v\u00e0 \u0111\u01b0\u1ee3c gia c\u00f4ng ren \u1edf hai \u0111\u1ea7u<\/strong>. Th\u00f4ng th\u01b0\u1eddng, m\u1ed9t \u0111\u1ea7u \u0111\u01b0\u1ee3c v\u1eb7n v\u00e0o v\u1eadt li\u1ec7u n\u1ec1n nh\u01b0 th\u00e2n \u0111\u1ed9ng c\u01a1 ho\u1eb7c th\u00e2n thi\u1ebft b\u1ecb, c\u00f2n \u0111\u1ea7u kia \u0111\u01b0\u1ee3c l\u1eafp \u0111ai \u1ed1c \u0111\u1ec3 si\u1ebft ch\u1eb7t li\u00ean k\u1ebft.<\/p>\n<p class=\"isSelectedEnd\">Theo ti\u00eau chu\u1ea9n JIS (Ti\u00eau chu\u1ea9n C\u00f4ng nghi\u1ec7p Nh\u1eadt B\u1ea3n), lo\u1ea1i bul\u00f4ng n\u00e0y \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i v\u1edbi t\u00ean g\u1ecdi <strong>bul\u00f4ng c\u1ea5y<\/strong>\u00a0v\u00e0 c\u00f3 th\u1ec3 chia th\u00e0nh c\u00e1c nh\u00f3m ch\u00ednh sau t\u00f9y theo h\u00ecnh d\u1ea1ng:<\/p>\n<ul data-spread=\"false\">\n<li><strong>Lo\u1ea1i hai \u0111\u1ea7u ren (Double End):<\/strong> G\u1ed3m m\u1ed9t \u0111\u1ea7u d\u00f9ng \u0111\u1ec3 v\u1eb7n v\u00e0o v\u1eadt li\u1ec7u n\u1ec1n (\u0111\u1ea7u c\u1ea5y) v\u00e0 m\u1ed9t \u0111\u1ea7u d\u00f9ng \u0111\u1ec3 l\u1eafp, si\u1ebft \u0111ai \u1ed1c (\u0111\u1ea7u \u0111ai \u1ed1c).<\/li>\n<li><strong>Lo\u1ea1i ren su\u1ed1t (Full Thread):<\/strong> To\u00e0n b\u1ed9 th\u00e2n bul\u00f4ng \u0111\u01b0\u1ee3c gia c\u00f4ng ren, ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng t\u1ea1i c\u00e1c v\u1ecb tr\u00ed k\u1ebft n\u1ed1i m\u1eb7t b\u00edch.<\/li>\n<\/ul>\n<p>Nh\u1edd c\u1ea5u t\u1ea1o n\u00e0y, bul\u00f4ng c\u1ea5y c\u00f2n c\u00f3 th\u1ec3 \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t <strong>\u201cchi ti\u1ebft d\u1eabn h\u01b0\u1edbng \u0111\u1ecbnh v\u1ecb\u201d<\/strong>. Khi l\u1eafp \u0111\u1eb7t c\u00e1c m\u1eb7t b\u00edch ho\u1eb7c n\u1eafp thi\u1ebft b\u1ecb c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng l\u1edbn, vi\u1ec7c c\u1ea5y s\u1eb5n bul\u00f4ng tr\u01b0\u1edbc gi\u00fap ng\u01b0\u1eddi thao t\u00e1c c\u00f3 th\u1ec3 lu\u1ed3n chi ti\u1ebft qua c\u00e1c bul\u00f4ng v\u00e0 t\u1ea1m th\u1eddi gi\u1eef ch\u00fang \u0111\u00fang v\u1ecb tr\u00ed. Nh\u1edd \u0111\u00f3, hi\u1ec7u qu\u1ea3 v\u00e0 t\u00ednh thu\u1eadn ti\u1ec7n trong qu\u00e1 tr\u00ecnh l\u1eafp r\u00e1p \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3.<\/p>\n<\/div>\n<div class=\"el-h4\">\n<h4 dir=\"auto\" data-heading=\"S\u1ef1 kh\u00e1c bi\u1ec7t v\u00e0 \u01b0u \u0111i\u1ec3m so v\u1edbi bulong th\u00f4ng th\u01b0\u1eddng\">S\u1ef1 kh\u00e1c bi\u1ec7t so v\u1edbi bul\u00f4ng th\u00f4ng th\u01b0\u1eddng v\u00e0 c\u00e1c \u01b0u \u0111i\u1ec3m n\u1ed5i b\u1eadt<\/h4>\n<\/div>\n<div class=\"el-h3\">\n<p class=\"isSelectedEnd\">So v\u1edbi bul\u00f4ng l\u1ee5c gi\u00e1c, bul\u00f4ng c\u1ea5y c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m k\u1ef9 thu\u1eadt r\u00f5 r\u00e0ng nh\u01b0 sau:<\/p>\n<ul data-spread=\"true\">\n<li><strong>Gi\u1ea3m h\u01b0 h\u1ea1i cho v\u1eadt li\u1ec7u n\u1ec1n:<\/strong> N\u1ebfu li\u00ean t\u1ee5c th\u00e1o l\u1eafp bul\u00f4ng l\u1ee5c gi\u00e1c, ph\u1ea7n ren trong c\u1ee7a v\u1eadt li\u1ec7u n\u1ec1n, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u00f4m ho\u1eb7c gang, c\u00f3 th\u1ec3 b\u1ecb m\u00e0i m\u00f2n. Trong tr\u01b0\u1eddng h\u1ee3p nghi\u00eam tr\u1ecdng, ren c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng ho\u1eb7c m\u1ea5t kh\u1ea3 n\u0103ng li\u00ean k\u1ebft. V\u1edbi bul\u00f4ng c\u1ea5y, \u0111\u1ea7u ph\u00eda v\u1eadt li\u1ec7u n\u1ec1n \u0111\u01b0\u1ee3c gi\u1eef c\u1ed1 \u0111\u1ecbnh, ng\u01b0\u1eddi thao t\u00e1c ch\u1ee7 y\u1ebfu th\u00e1o l\u1eafp \u1edf ph\u00eda \u0111ai \u1ed1c. Nh\u1edd \u0111\u00f3, c\u00f3 th\u1ec3 h\u1ea1n ch\u1ebf h\u01b0 h\u1ea1i \u0111\u1ed1i v\u1edbi th\u00e2n chi ti\u1ebft ho\u1eb7c thi\u1ebft b\u1ecb c\u00f3 gi\u00e1 tr\u1ecb cao.<\/li>\n<li><strong>\u0110\u1ea3m b\u1ea3o l\u1ef1c si\u1ebft d\u1ecdc tr\u1ee5c \u1ed5n \u0111\u1ecbnh:<\/strong> Nh\u1edd c\u01a1 c\u1ea5u si\u1ebft b\u1eb1ng \u0111ai \u1ed1c ho\u1eb7c \u0111\u1ea7u c\u1ea5y \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh ch\u1eafc ch\u1eafn trong v\u1eadt li\u1ec7u n\u1ec1n, bul\u00f4ng c\u1ea5y gi\u00fap duy tr\u00ec l\u1ef1c d\u1ecdc tr\u1ee5c \u1ed5n \u0111\u1ecbnh h\u01a1n, \u0111\u1ed3ng th\u1eddi mang l\u1ea1i \u0111\u1ed9 tin c\u1eady cao t\u1ea1i nh\u1eefng v\u1ecb tr\u00ed ch\u1ecbu rung \u0111\u1ed9ng v\u00e0 c\u00f3 nguy c\u01a1 n\u1edbi l\u1ecfng li\u00ean k\u1ebft.<\/li>\n<li><strong>Thi\u1ebft k\u1ebf nh\u1ecf g\u1ecdn, linh ho\u1ea1t:<\/strong> Do kh\u00f4ng c\u00f3 \u0111\u1ea7u l\u1ee5c gi\u00e1c, bul\u00f4ng c\u1ea5y ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng khu v\u1ef1c c\u00f3 kh\u00f4ng gian l\u1eafp \u0111\u1eb7t h\u1ea1n ch\u1ebf, gi\u00fap t\u0103ng m\u1ee9c \u0111\u1ed9 linh ho\u1ea1t trong thi\u1ebft k\u1ebf m\u00e1y m\u00f3c, thi\u1ebft b\u1ecb v\u00e0 h\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p.<\/li>\n<\/ul>\n<h3 dir=\"auto\" data-heading=\"C\u00e1c lo\u1ea1i ch\u00ednh, ti\u00eau chu\u1ea9n v\u00e0 v\u1eadt li\u1ec7u\">C\u00e1c lo\u1ea1i ch\u00ednh, ti\u00eau chu\u1ea9n v\u00e0 v\u1eadt li\u1ec7u ch\u00ednh<\/h3>\n<\/div>\n<div class=\"el-h4\">\n<h4 dir=\"auto\" data-heading=\"Ph\u00e2n lo\u1ea1i theo h\u00ecnh d\u1ea1ng v\u00e0 c\u00f4ng d\u1ee5ng\">Ph\u00e2n lo\u1ea1i theo h\u00ecnh d\u1ea1ng v\u00e0 \u1ee9ng d\u1ee5ng<\/h4>\n<\/div>\n<div class=\"el-p\">\n<p class=\"isSelectedEnd\">Bul\u00f4ng c\u1ea5y c\u00f3 nhi\u1ec1u h\u00ecnh d\u1ea1ng kh\u00e1c nhau t\u00f9y theo m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng.<\/p>\n<ul data-spread=\"false\">\n<li><strong>Lo\u1ea1i 1 (c\u00f9ng \u0111\u01b0\u1eddng k\u00ednh):<\/strong> \u0110\u01b0\u1eddng k\u00ednh ren \u1edf \u0111\u1ea7u c\u1ea5y v\u00e0 \u0111\u1ea7u l\u1eafp \u0111ai \u1ed1c gi\u1ed1ng nhau. \u0110\u00e2y l\u00e0 lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u1ea5t.<\/li>\n<li><strong>Lo\u1ea1i 2 (kh\u00e1c \u0111\u01b0\u1eddng k\u00ednh):<\/strong> \u0110\u01b0\u1eddng k\u00ednh ren \u1edf \u0111\u1ea7u c\u1ea5y l\u1edbn h\u01a1n \u0111\u1ea7u l\u1eafp \u0111ai \u1ed1c. Lo\u1ea1i n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi v\u1eadt li\u1ec7u n\u1ec1n t\u01b0\u01a1ng \u0111\u1ed1i m\u1ec1m nh\u01b0 nh\u00f4m, nh\u1eb1m t\u0103ng di\u1ec7n t\u00edch ti\u1ebfp x\u00fac v\u00e0 h\u1ea1n ch\u1ebf nguy c\u01a1 bul\u00f4ng b\u1ecb tu\u1ed9t ra.<\/li>\n<li><strong>\u0110\u1ea7u c\u1eaft ph\u1eb3ng:<\/strong> B\u1ec1 m\u1eb7t \u0111\u1ea7u bul\u00f4ng \u0111\u01b0\u1ee3c gia c\u00f4ng ph\u1eb3ng.<\/li>\n<li><strong>\u0110\u1ea7u tr\u00f2n, \u0111\u1ea7u ph\u1eb3ng, \u0111\u1ea7u nh\u1ecdn:<\/strong> Ph\u1ea7n \u0111\u1ea7u \u0111\u01b0\u1ee3c gia c\u00f4ng theo c\u00e1c h\u00ecnh d\u1ea1ng kh\u00e1c nhau nh\u1eb1m c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng \u0111\u01b0a bul\u00f4ng v\u00e0o v\u1ecb tr\u00ed l\u1eafp \u0111\u1eb7t.<\/li>\n<\/ul>\n<p>Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p \u00f4 t\u00f4, bul\u00f4ng c\u1ea5y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u1ec3 li\u00ean k\u1ebft <strong>\u1ed1ng g\u00f3p kh\u00ed x\u1ea3 (exhaust manifold)<\/strong> v\u00e0 <strong>n\u1eafp xi lanh (cylinder head)<\/strong>. T\u1ea1i c\u00e1c v\u1ecb tr\u00ed n\u00e0y, bul\u00f4ng ph\u1ea3i \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n cao trong m\u00f4i tr\u01b0\u1eddng c\u00f3 nhi\u1ec7t \u0111\u1ed9 l\u1edbn v\u00e0 rung \u0111\u1ed9ng m\u1ea1nh.<\/p>\n<\/div>\n<div class=\"el-h4\">\n<h4 dir=\"auto\" data-heading=\"C\u00e1ch \u0111\u1ecdc ti\u00eau chu\u1ea9n JIS v\u00e0 c\u1ea5p b\u1ec1n\">Ti\u00eau chu\u1ea9n JIS v\u00e0 C\u00e1ch \u0111\u1ecdc\u00a0c\u1ea5p b\u1ec1n<\/h4>\n<\/div>\n<div class=\"el-p\">\n<p class=\"isSelectedEnd\">M\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh t\u00ednh n\u0103ng c\u1ee7a bul\u00f4ng l\u00e0 <strong>\u201cc\u1ea5p b\u1ec1n\u201d<\/strong>. \u0110\u1ed1i v\u1edbi bul\u00f4ng th\u00e9p, c\u1ea5p b\u1ec1n \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng c\u00e1c con s\u1ed1.<\/p>\n<p class=\"isSelectedEnd\">V\u00ed d\u1ee5, n\u1ebfu tr\u00ean bul\u00f4ng c\u00f3 k\u00fd hi\u1ec7u <strong>\u201c10.9\u201d<\/strong>, \u00fd ngh\u0129a nh\u01b0 sau:<\/p>\n<ul data-spread=\"false\">\n<li><strong>10:<\/strong> \u0110\u1ed9 b\u1ec1n k\u00e9o l\u00e0 <strong>1.000 N\/mm\u00b2 (MPa)<\/strong>.<br \/>\nC\u00e1ch t\u00ednh: <strong>S\u1ed1 b\u00ean tr\u00e1i \u00d7 100<\/strong><\/li>\n<li><strong>9:<\/strong> Gi\u1edbi h\u1ea1n ch\u1ea3y ho\u1eb7c gi\u1edbi h\u1ea1n b\u1ec1n quy \u01b0\u1edbc b\u1eb1ng <strong>90% \u0111\u1ed9 b\u1ec1n k\u00e9o<\/strong>.<br \/>\nC\u00e1ch t\u00ednh: <strong>S\u1ed1 b\u00ean ph\u1ea3i \u00f7 10<\/strong><\/li>\n<\/ul>\n<p class=\"isSelectedEnd\"><strong>C\u00f4ng th\u1ee9c t\u00ednh:<\/strong><\/p>\n<p class=\"isSelectedEnd\">\u0110\u1ed9 b\u1ec1n k\u00e9o = 10 \u00d7 100 = 1.000 MPa<br \/>\nGi\u1edbi h\u1ea1n ch\u1ea3y = 1.000 \u00d7 0,9 = 900 MPa<\/p>\n<p class=\"isSelectedEnd\">N\u00f3i c\u00e1ch kh\u00e1c, bul\u00f4ng c\u1ea5p b\u1ec1n 10.9 c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o danh ngh\u0129a l\u00e0 1.000 MPa v\u00e0 gi\u1edbi h\u1ea1n ch\u1ea3y ho\u1eb7c gi\u1edbi h\u1ea1n b\u1ec1n quy \u01b0\u1edbc l\u00e0 900 MPa. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y \u0111\u00e2y l\u00e0 lo\u1ea1i bul\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i cao.<br \/>\nC\u00e1c c\u1ea5p b\u1ec1n th\u00f4ng d\u1ee5ng g\u1ed3m 4.6 v\u00e0 4.8. Trong khi \u0111\u00f3, c\u00e1c c\u1ea5p 8.8, 10.9 v\u00e0 12.9, th\u01b0\u1eddng \u0111\u01b0\u1ee3c x\u1ebfp v\u00e0o nh\u00f3m bul\u00f4ng c\u01b0\u1eddng \u0111\u1ed9 cao, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c chi ti\u1ebft quan tr\u1ecdng \u0111\u00f2i h\u1ecfi l\u1ef1c li\u00ean k\u1ebft l\u1edbn v\u00e0 \u0111\u1ed9 tin c\u1eady cao.<\/p>\n<\/div>\n<div class=\"el-p\"><\/div>\n<div class=\"el-h3\">\n<h3 dir=\"auto\" data-heading=\"C\u00e1ch ch\u1ecdn \u0111\u00fang v\u00e0 qu\u1ea3n l\u00fd l\u1ef1c si\u1ebft bulong c\u1ea5y\">C\u00e1ch l\u1ef1a ch\u1ecdn bul\u00f4ng c\u1ea5y v\u00e0 qu\u1ea3n l\u00fd l\u1ef1c si\u1ebft \u0111\u00fang c\u00e1ch<\/h3>\n<\/div>\n<div class=\"el-h4\">\n<h4 dir=\"auto\" data-heading=\"L\u1ef1a ch\u1ecdn chi\u1ec1u d\u00e0i v\u00e0 c\u00f4ng th\u1ee9c t\u00ednh\">L\u1ef1a ch\u1ecdn chi\u1ec1u d\u00e0i v\u00e0 c\u00f4ng th\u1ee9c t\u00ednh<\/h4>\n<\/div>\n<p class=\"isSelectedEnd\">Khi l\u1ef1a ch\u1ecdn bul\u00f4ng c\u1ea5y, vi\u1ec7c t\u00ednh to\u00e1n chi\u1ec1u d\u00e0i (L) l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng. \u0110\u1ed1i v\u1edbi lo\u1ea1i hai \u0111\u1ea7u ren (Double End), th\u00f4ng th\u01b0\u1eddng c\u1ea7n xem x\u00e9t c\u00e1c y\u1ebfu t\u1ed1 sau:<\/p>\n<ul data-spread=\"true\">\n<li>\n<p class=\"isSelectedEnd\">Chi\u1ec1u s\u00e2u c\u1ea5y v\u00e0o v\u1eadt li\u1ec7u n\u1ec1n: Ph\u1ee5 thu\u1ed9c v\u00e0o lo\u1ea1i v\u1eadt li\u1ec7u n\u1ec1n. Gi\u00e1 tr\u1ecb tham kh\u1ea3o: Th\u00e9p: kho\u1ea3ng 1d, Gang: kho\u1ea3ng 1,25d, Nh\u00f4m: kho\u1ea3ng 1,5d\u20132d (Trong \u0111\u00f3, d l\u00e0 \u0111\u01b0\u1eddng k\u00ednh danh ngh\u0129a c\u1ee7a ren).<\/p>\n<\/li>\n<li>\n<p class=\"isSelectedEnd\">Chi\u1ec1u d\u00e0y c\u1ee7a chi ti\u1ebft \u0111\u01b0\u1ee3c li\u00ean k\u1ebft: V\u00ed d\u1ee5 nh\u01b0 chi\u1ec1u d\u00e0y m\u1eb7t b\u00edch.<\/p>\n<\/li>\n<li>\n<p class=\"isSelectedEnd\">Chi\u1ec1u cao c\u1ee7a \u0111ai \u1ed1c<\/p>\n<\/li>\n<li>Chi\u1ec1u d\u00e0i ph\u1ea7n ren nh\u00f4 ra kh\u1ecfi \u0111ai \u1ed1c: Th\u00f4ng th\u01b0\u1eddng kho\u1ea3ng 2\u20133 b\u01b0\u1edbc ren<\/li>\n<\/ul>\n<p class=\"isSelectedEnd\">C\u00f3 th\u1ec3 h\u00ecnh dung chi\u1ec1u d\u00e0i t\u1ed5ng th\u1ec3 theo c\u00f4ng th\u1ee9c tham kh\u1ea3o sau:<\/p>\n<p class=\"isSelectedEnd\"><strong>L = Chi\u1ec1u s\u00e2u c\u1ea5y + Chi\u1ec1u d\u00e0y chi ti\u1ebft li\u00ean k\u1ebft + Chi\u1ec1u cao \u0111ai \u1ed1c + Ph\u1ea7n ren nh\u00f4 ra<\/strong><\/p>\n<p>N\u1ebfu l\u1ef1a ch\u1ecdn chi\u1ec1u d\u00e0i kh\u00f4ng ph\u00f9 h\u1ee3p, c\u00f3 th\u1ec3 x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng ch\u1ea1m \u0111\u00e1y l\u1ed7 ren, d\u1eabn \u0111\u1ebfn l\u1ef1c si\u1ebft kh\u00f4ng \u0111\u1ea1t y\u00eau c\u1ea7u; ho\u1eb7c ph\u1ea7n ren \u0103n kh\u1edbp kh\u00f4ng \u0111\u1ee7, l\u00e0m gi\u1ea3m \u0111\u1ed9 b\u1ec1n c\u1ee7a li\u00ean k\u1ebft.<\/p>\n<div class=\"el-h4\">\n<h4 dir=\"auto\" data-heading=\"Qu\u1ea3n l\u00fd momen xo\u1eafn si\u1ebft v\u00e0 l\u1ef1c d\u1ecdc tr\u1ee5c\">Qu\u1ea3n l\u00fd momen xo\u1eafn si\u1ebft v\u00e0 l\u1ef1c d\u1ecdc tr\u1ee5c<\/h4>\n<\/div>\n<div class=\"el-p\">\n<p class=\"isSelectedEnd\">Hai s\u1ef1 c\u1ed1 ph\u1ed5 bi\u1ebfn nh\u1ea5t trong li\u00ean k\u1ebft ren l\u00e0 <strong>\u201cn\u1edbi l\u1ecfng\u201d<\/strong> v\u00e0 <strong>\u201cg\u00e3y bul\u00f4ng\u201d<\/strong>. \u0110\u1ec3 ph\u00f2ng tr\u00e1nh c\u00e1c v\u1ea5n \u0111\u1ec1 n\u00e0y, vi\u1ec7c ki\u1ec3m so\u00e1t <strong>m\u00f4-men si\u1ebft (T)<\/strong> nh\u1eb1m t\u1ea1o ra <strong>l\u1ef1c d\u1ecdc tr\u1ee5c (F)<\/strong> ph\u00f9 h\u1ee3p l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/p>\n<p class=\"isSelectedEnd\">C\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n nh\u01b0 sau: <strong>T = K \u00d7 d \u00d7 F<br \/>\n<\/strong><\/p>\n<p>Trong \u0111\u00f3:<\/p>\n<\/div>\n<div class=\"el-ul\">\n<ul class=\"has-list-bullet\">\n<li dir=\"auto\" data-line=\"0\">: Momen xo\u1eafn si\u1ebft (N\u00b7m)<\/li>\n<li dir=\"auto\" data-line=\"1\">: H\u1ec7 s\u1ed1 momen xo\u1eafn (Thay \u0111\u1ed5i t\u00f9y theo tr\u1ea1ng th\u00e1i b\u00f4i tr\u01a1n. Th\u01b0\u1eddng l\u00e0 0.2, c\u00f3 ch\u1ea5t b\u00f4i tr\u01a1n l\u00e0 kho\u1ea3ng 0.15)<\/li>\n<li dir=\"auto\" data-line=\"2\">: \u0110\u01b0\u1eddng k\u00ednh danh ngh\u0129a c\u1ee7a ren (m)<\/li>\n<li dir=\"auto\" data-line=\"3\">: L\u1ef1c d\u1ecdc tr\u1ee5c m\u1ee5c ti\u00eau (N)<\/li>\n<\/ul>\n<\/div>\n<div class=\"el-p\">\n<p dir=\"auto\">V\u00ed d\u1ee5: V\u1edbi bulong M10 (d=0.01m), n\u1ebfu mu\u1ed1n \u0111\u1ea1t \u0111\u01b0\u1ee3c l\u1ef1c d\u1ecdc tr\u1ee5c m\u1ee5c ti\u00eau l\u00e0 20,000N, gi\u1ea3 s\u1eed h\u1ec7 s\u1ed1 momen xo\u1eafn l\u00e0 0.2, th\u00ec:<\/p>\n<\/div>\n<div class=\"el-p\">\n<p dir=\"auto\">T = 0,2 \u00d7 0,01 \u00d7 20.000 = 40 N\u00b7m<\/p>\n<\/div>\n<div class=\"el-p\">\n<p dir=\"auto\">T\u1ea1i <strong>Ohta Vi\u1ec7t Nam, <\/strong>ch\u00fang t\u00f4i c\u0169ng c\u00f3 th\u1ec3 \u0111\u1ec1 xu\u1ea5t s\u1ea3n ph\u1ea9m t\u1ed1i \u01b0u d\u1ef1a tr\u00ean c\u00e1c t\u00ednh to\u00e1n k\u1ef9 thu\u1eadt nh\u01b0 tr\u00ean, gi\u00fap doanh nghi\u1ec7p l\u1ef1a ch\u1ecdn bul\u00f4ng c\u1ea5y ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng v\u00e0 y\u00eau c\u1ea7u li\u00ean k\u1ebft th\u1ef1c t\u1ebf.<\/p>\n<\/div>\n<div class=\"el-h3\">\n<h3 dir=\"auto\" data-heading=\"Mua s\u1eafm bulong c\u1ea5y t\u1ea1i Vi\u1ec7t Nam v\u00e0 th\u1ebf m\u1ea1nh c\u1ee7a Ota Vietnam\">Mua s\u1eafm bul\u00f4ng c\u1ea5y t\u1ea1i Vi\u1ec7t Nam v\u00e0 th\u1ebf m\u1ea1nh c\u1ee7a Ohta Vietnam<\/h3>\n<\/div>\n<div class=\"el-h4\">\n<h4 dir=\"auto\" data-heading=\"Hi\u1ec7n tr\u1ea1ng ng\u00e0nh s\u1ea3n xu\u1ea5t Vi\u1ec7t Nam v\u00e0 l\u1ee3i th\u1ebf chi ph\u00ed\">Th\u1ef1c tr\u1ea1ng ng\u00e0nh s\u1ea3n xu\u1ea5t Vi\u1ec7t Nam v\u00e0 l\u1ee3i th\u1ebf v\u1ec1 chi ph\u00ed<\/h4>\n<\/div>\n<div class=\"el-p\">\n<p class=\"isSelectedEnd\">N\u0103m 2024, kinh t\u1ebf Vi\u1ec7t Nam ghi nh\u1eadn s\u1ef1 ph\u1ee5c h\u1ed3i m\u1ea1nh m\u1ebd v\u1edbi t\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng GDP th\u1ef1c t\u1ebf \u0111\u1ea1t <strong>7,1%<\/strong>. Trong l\u0129nh v\u1ef1c s\u1ea3n xu\u1ea5t, Vi\u1ec7t Nam \u0111ang c\u1ee7ng c\u1ed1 v\u1ecb th\u1ebf nh\u01b0 m\u1ed9t trung t\u00e2m s\u1ea3n xu\u1ea5t quan tr\u1ecdng c\u1ee7a th\u1ebf gi\u1edbi, \u0111\u1ed3ng th\u1eddi tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng \u0111i\u1ec3m \u0111\u1ebfn h\u00e0ng \u0111\u1ea7u trong xu h\u01b0\u1edbng d\u1ecbch chuy\u1ec3n s\u1ea3n xu\u1ea5t kh\u1ecfi Trung Qu\u1ed1c theo chi\u1ebfn l\u01b0\u1ee3c <strong>\u201cChina Plus One\u201d<\/strong>.<\/p>\n<p class=\"isSelectedEnd\">M\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 \u0111\u1eb7c bi\u1ec7t \u0111\u00e1ng ch\u00fa \u00fd l\u00e0 <strong>kh\u1ea3 n\u0103ng c\u1ea1nh tranh v\u1ec1 chi ph\u00ed<\/strong>. M\u1ee9c l\u01b0\u01a1ng t\u1ed1i thi\u1ec3u t\u1ea1i c\u00e1c th\u00e0nh ph\u1ed1 l\u1edbn c\u1ee7a Vi\u1ec7t Nam nh\u01b0 H\u00e0 N\u1ed9i v\u00e0 Th\u00e0nh ph\u1ed1 H\u1ed3 Ch\u00ed Minh v\u00e0o kho\u1ea3ng <strong>29.000 y\u00ean\/th\u00e1ng<\/strong>, cho th\u1ea5y v\u1eabn t\u1ed3n t\u1ea1i ch\u00eanh l\u1ec7ch \u0111\u00e1ng k\u1ec3 v\u1ec1 chi ph\u00ed nh\u00e2n c\u00f4ng so v\u1edbi c\u00e1c c\u01a1 s\u1edf s\u1ea3n xu\u1ea5t t\u1ea1i Nh\u1eadt B\u1ea3n.<\/p>\n<p>T\u1eadn d\u1ee5ng l\u1ee3i th\u1ebf n\u00e0y, vi\u1ec7c tri\u1ec3n khai t\u1ea1i Vi\u1ec7t Nam c\u00e1c c\u00f4ng \u0111o\u1ea1n s\u1ea3n xu\u1ea5t bul\u00f4ng v\u00e0 ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng c\u00f3 t\u1ef7 tr\u1ecdng lao \u0111\u1ed9ng th\u1ee7 c\u00f4ng cao c\u00f3 th\u1ec3 gi\u00fap doanh nghi\u1ec7p gi\u1ea3m kho\u1ea3ng <strong>15%\u201330% t\u1ed5ng chi ph\u00ed<\/strong> trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p.<\/p>\n<\/div>\n<div class=\"el-h4\">\n<h4 dir=\"auto\" data-heading=\"Qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 ngu\u1ed3n cung \u1ed5n \u0111\u1ecbnh\">Qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 ngu\u1ed3n cung \u1ed5n \u0111\u1ecbnh<\/h4>\n<\/div>\n<div class=\"el-p\">\n<p class=\"isSelectedEnd\">Nhi\u1ec1u doanh nghi\u1ec7p v\u1eabn lo ng\u1ea1i r\u1eb1ng \u201cthu mua t\u1eeb n\u01b0\u1edbc ngo\u00e0i ti\u1ec1m \u1ea9n r\u1ee7i ro v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng\u201d. Tuy nhi\u00ean, chu\u1ed7i cung \u1ee9ng t\u1ea1i Vi\u1ec7t Nam hi\u1ec7n nay \u0111ang ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c n\u00e2ng cao nh\u1edd s\u1ef1 hi\u1ec7n di\u1ec7n v\u00e0 \u0111\u1ea7u t\u01b0 c\u1ee7a nhi\u1ec1u doanh nghi\u1ec7p Nh\u1eadt B\u1ea3n.<\/p>\n<p class=\"isSelectedEnd\">T\u1ea1i Vi\u1ec7t Nam, Ohta Vi\u1ec7t Nam \u0111\u00e3 x\u00e2y d\u1ef1ng h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng theo ti\u00eau chu\u1ea9n Nh\u1eadt B\u1ea3n, v\u1edbi c\u00e1c n\u1ed9i dung n\u1ed5i b\u1eadt nh\u01b0 sau:<\/p>\n<ul data-spread=\"true\">\n<li>Qu\u1ea3n l\u00fd ch\u1eb7t ch\u1ebd ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u (Mill Sheet): \u0110\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c c\u1ee7a v\u1eadt li\u1ec7u th\u00e9p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t.<\/li>\n<li>Ki\u1ec3m tra ch\u00ednh x\u00e1c: Th\u1ef1c hi\u1ec7n quy tr\u00ecnh \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t theo ti\u00eau chu\u1ea9n JIS c\u1ee7a Nh\u1eadt B\u1ea3n, bao g\u1ed3m ki\u1ec3m tra 100% b\u1eb1ng d\u01b0\u1ee1ng ki\u1ec3m ren v\u00e0 \u1ee9ng d\u1ee5ng m\u00e1y ph\u00e2n lo\u1ea1i b\u1eb1ng h\u00ecnh \u1ea3nh.<\/li>\n<li>H\u1ed7 tr\u1ee3 tr\u1ecdn g\u00f3i (One-stop): H\u1ed7 tr\u1ee3 xuy\u00ean su\u1ed1t t\u1eeb l\u1eadp b\u1ea3n v\u1ebd bul\u00f4ng c\u1ea5y c\u00f3 h\u00ecnh d\u1ea1ng \u0111\u1eb7c bi\u1ec7t, ch\u1ebf t\u1ea1o m\u1eabu th\u1eed, s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t, x\u1eed l\u00fd b\u1ec1 m\u1eb7t cho \u0111\u1ebfn c\u00e1c th\u1ee7 t\u1ee5c xu\u1ea5t kh\u1ea9u sang Nh\u1eadt B\u1ea3n.<\/li>\n<\/ul>\n<\/div>\n<div class=\"el-h3\">\n<h3 dir=\"auto\" data-heading=\"T\u00f3m t\u1eaft\">T\u00f3m t\u1eaft<\/h3>\n<\/div>\n<div class=\"el-p\">\n<p class=\"isSelectedEnd\">Bul\u00f4ng c\u1ea5y l\u00e0 m\u1ed9t chi ti\u1ebft li\u00ean k\u1ebft quan tr\u1ecdng, c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn tu\u1ed5i th\u1ecd c\u1ee7a m\u00e1y m\u00f3c, thi\u1ebft b\u1ecb v\u00e0 kh\u1ea3 n\u0103ng b\u1ea3o tr\u00ec trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh.<br \/>\n\u0110\u1ec3 l\u1ef1a ch\u1ecdn bul\u00f4ng c\u1ea5y ph\u00f9 h\u1ee3p, doanh nghi\u1ec7p c\u1ea7n hi\u1ec3u r\u00f5 c\u1ea5p b\u1ec1n theo ti\u00eau chu\u1ea9n JIS, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u1ea5p 10.9, \u0111\u1ed3ng th\u1eddi th\u1ef1c hi\u1ec7n ch\u00ednh x\u00e1c vi\u1ec7c t\u00ednh to\u00e1n m\u00f4-men si\u1ebft ph\u00f9 h\u1ee3p v\u1edbi t\u1eebng \u0111i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng.<br \/>\nB\u00ean c\u1ea1nh \u0111\u00f3, trong b\u1ed1i c\u1ea3nh c\u1ea1nh tranh v\u1ec1 chi ph\u00ed ng\u00e0y c\u00e0ng gia t\u0103ng, thu mua t\u1ea1i Vi\u1ec7t Nam \u0111ang tr\u1edf th\u00e0nh m\u1ed9t l\u1ef1a ch\u1ecdn \u0111\u00e1ng c\u00e2n nh\u1eafc. V\u1edbi m\u1ed9t th\u1ecb tr\u01b0\u1eddng n\u0103ng \u0111\u1ed9ng c\u00f3 t\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng tr\u00ean 7% c\u00f9ng l\u1ee3i th\u1ebf v\u1ec1 chi ph\u00ed s\u1ea3n xu\u1ea5t so v\u1edbi Nh\u1eadt B\u1ea3n, doanh nghi\u1ec7p c\u00f3 th\u1ec3 x\u00e2y d\u1ef1ng ngu\u1ed3n cung linh ki\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng cao v\u00e0 \u1ed5n \u0111\u1ecbnh.<\/p>\n<p class=\"isSelectedEnd\">Ohta Vi\u1ec7t Nam v\u1edbi n\u0103ng l\u1ef1c k\u1ef9 thu\u1eadt v\u00e0 m\u1ea1ng l\u01b0\u1edbi \u0111\u1ed1i t\u00e1c v\u1eefng ch\u1eafc t\u1ea1i Vi\u1ec7t Nam c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 doanh nghi\u1ec7p t\u1ed1i \u01b0u h\u00f3a ho\u1ea1t \u0111\u1ed9ng thu mua bul\u00f4ng c\u1ea5y.<br \/>\nN\u1ebfu doanh nghi\u1ec7p \u0111ang g\u1eb7p c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 \u201ckh\u00f4ng c\u00f3 b\u1ea3n v\u1ebd\u201d, \u201cy\u00eau c\u1ea7u quy c\u00e1ch \u0111\u1eb7c bi\u1ec7t\u201d ho\u1eb7c \u201cmu\u1ed1n gi\u1ea3m chi ph\u00ed thu mua\u201d, h\u00e3y li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n. Ch\u00fang t\u00f4i s\u1ebd \u0111\u1ec1 xu\u1ea5t ph\u01b0\u01a1ng \u00e1n c\u1ee5 th\u1ec3, ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u th\u1ef1c t\u1ebf, g\u00f3p ph\u1ea7n n\u00e2ng cao hi\u1ec7u qu\u1ea3 v\u00e0 t\u1ed1i \u01b0u chi\u1ebfn l\u01b0\u1ee3c thu mua c\u1ee7a doanh nghi\u1ec7p.<\/p>\n<h3>K\u1ebft lu\u1eadn<\/h3>\n<p><span style=\"color: #f56d91; font-size: 14pt;\"><strong>Vui l\u00f2ng g\u1eedi ph\u1ea3n h\u1ed3i qua email n\u00e0y ho\u1eb7c li\u00ean h\u1ec7 v\u1edbi b\u1ed9 ph\u1eadn kinh doanh c\u1ee7a ch\u00fang t\u00f4i n\u1ebfu c\u00f3 b\u1ea5t k\u1ef3 c\u00e2u h\u1ecfi n\u00e0o li\u00ean quan t\u1edbi m\u1eabu s\u1ea3n ph\u1ea9m ho\u1eb7c t\u00e0i li\u1ec7u li\u00ean quan.<\/strong><\/span><\/p>\n<p><a href=\"https:\/\/ohtavn.com\/vi\/contact\/\"><img decoding=\"async\" class=\"\" src=\"http:\/\/ohtavn.com\/wp-content\/uploads\/2023\/12\/column_cta-banner_vn.jpg\" alt=\"column_cta-banner\" width=\"900\" height=\"Auto\" \/><\/a><\/p>\n<p>T\u1ea1i Ohta Vi\u1ec7t Nam, ch\u00fang t\u00f4i kh\u00f4ng ch\u1ec9 cung c\u1ea5p c\u00e1c s\u1ea3n ph\u1ea9m \u0111\u00e3 l\u00e0m s\u1eb5n nh\u01b0 \u1ed1c v\u00edt v\u00e0 bul\u00f4ng, m\u00e0 c\u00f2n h\u1ed7 tr\u1ee3 c\u00e1c ho\u1ea1t \u0111\u1ed9ng trong l\u0129nh v\u1ef1c s\u1ea3n xu\u1ea5t nh\u01b0 gia c\u00f4ng c\u1eaft, ki\u1ec3m tra, l\u1eafp r\u00e1p, \u0111\u00f3ng g\u00f3i&#8230;<br \/>\nDanh s\u00e1ch thi\u1ebft b\u1ecb c\u1ee7a ch\u00fang t\u00f4i <strong><a href=\"https:\/\/ohtavn.com\/vi\/company\/introduction\/#introduction_ttl02\">nh\u1ea5p \u0111\u1ec3 xem t\u1ea1i \u0111\u00e2y<\/a><\/strong><\/p>\n<p>L\u00e0 &#8220;\u0111\u01a1n v\u1ecb chuy\u00ean h\u1ed7 tr\u1ee3&#8221; cho ng\u00e0nh s\u1ea3n xu\u1ea5t \u1edf ch\u00e2u \u00c1. N\u1ebfu doanh nghi\u1ec7p c\u00f3 b\u1ea5t k\u1ef3 c\u00e2u h\u1ecfi h\u1ecfi n\u00e0o li\u00ean quan, vui l\u00f2ng li\u00ean h\u1ec7 v\u1edbi Ohta Vietnam \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 chi ti\u1ebft!<br \/>\nURL: <a href=\"https:\/\/ohtavn.com\/vi\/contact\/\">https:\/\/ohtavn.com\/vi\/contact\/<\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Gi\u1edbi thi\u1ec7u Trong c\u00e1c nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t v\u00e0 l\u0129nh v\u1ef1c thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p, bul\u00f4ng c\u1ea5y (Stud Bolt) l\u00e0 m\u1ed9t chi ti\u1ebft kh\u00f4ng th\u1ec3 thi\u1ebfu, d\u00f9 th\u01b0\u1eddng \u0111\u00f3ng vai tr\u00f2 \u00e2m th\u1ea7m trong to\u00e0n b\u1ed9 k\u1ebft c\u1ea5u. Kh\u00e1c v\u1edbi bul\u00f4ng l\u1ee5c gi\u00e1c th\u00f4ng th\u01b0\u1eddng, lo\u1ea1i bul\u00f4ng n\u00e0y c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m \u0111\u1eb7c tr\u01b0ng [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":5546,"template":"","meta":{"_acf_changed":false,"_locale":"vi","_original_post":"https:\/\/ohtavn.com\/?post_type=media&p=5545","footnotes":"","title":"Gi\u1ea3i th\u00edch d\u1ec5 hi\u1ec3u trong 3 ph\u00fat \"Bul\u00f4ng c\u1ea5y l\u00e0 g\u00ec?\"","_title":"field_639aec69b01cd","keywords":"\u1ed0c v\u00edt, bul\u00f4ng, linh ki\u1ec7n k\u1ebft n\u1ed1i, d\u1ee5ng c\u1ee5 chuy\u00ean nghi\u1ec7p, gia c\u00f4ng ch\u00ednh x\u00e1c, cung \u1ee9ng c\u00e1c lo\u1ea1i linh ki\u1ec7n","_keywords":"field_639aec76b01ce","description":"Gi\u1ea3i th\u00edch nh\u1eefng ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 bu l\u00f4ng \u0111inh t\u00e1n (bu l\u00f4ng \u0111\u00f3ng), ti\u00eau chu\u1ea9n JIS, ph\u00e2n lo\u1ea1i c\u01b0\u1eddng \u0111\u1ed9 v\u00e0 t\u00ednh to\u00e1n m\u00f4men xo\u1eafn trong 3 ph\u00fat. T\u1ea1i sao n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u00f4 t\u00f4 v\u00e0 nh\u00e0 m\u00e1y? Ch\u00fang t\u00f4i c\u0169ng \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3m chi ph\u00ed th\u00f4ng qua h\u1ec7 th\u1ed1ng thu mua c\u1ee7a Vi\u1ec7t Nam v\u00e0 h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a Ota Vi\u1ec7t Nam. 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