{"id":17323,"date":"2026-09-01T09:47:11","date_gmt":"2026-09-01T09:47:11","guid":{"rendered":"https:\/\/www.dgcrane.com\/?post_type=posts&#038;p=17323"},"modified":"2026-09-01T09:47:14","modified_gmt":"2026-09-01T09:47:14","slug":"casting-crane-fatigue-prevention","status":"publish","type":"posts","link":"https:\/\/www.dgcrane.com\/vi\/posts\/casting-crane-fatigue-prevention\/","title":{"rendered":"Ng\u0103n ng\u1eeba m\u1ecfi v\u1eadt li\u1ec7u cho c\u1ea7n c\u1ea9u \u0111\u00fac: C\u00e1c th\u00e0nh ph\u1ea7n c\u1ea5u tr\u00fac ch\u00ednh"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>M\u1ee5c l\u1ee5c<\/h2><nav><ul><li><a href=\"#causes-of-fatigue-failure-in-main-structural-components\">Nguy\u00ean nh\u00e2n g\u00e2y ra h\u1ecfng h\u00f3c do m\u1ecfi \u1edf c\u00e1c c\u1ea5u ki\u1ec7n k\u1ebft c\u1ea5u ch\u00ednh<\/a><\/li><li><a href=\"#prevention-and-control-of-fatigue-failure-in-main-structural-components\">Ph\u00f2ng ng\u1eeba v\u00e0 ki\u1ec3m so\u00e1t s\u1ef1 h\u01b0 h\u1ecfng do m\u1ecfi trong c\u00e1c c\u1ea5u ki\u1ec7n k\u1ebft c\u1ea5u ch\u00ednh<\/a><ul><li><a href=\"#rational-design-of-main-structural-components\">Thi\u1ebft k\u1ebf h\u1ee3p l\u00fd c\u00e1c th\u00e0nh ph\u1ea7n c\u1ea5u tr\u00fac ch\u00ednh<\/a><\/li><li><a href=\"#appropriate-weld-selection-and-welding-quality\">L\u1ef1a ch\u1ecdn m\u1ed1i h\u00e0n ph\u00f9 h\u1ee3p v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng h\u00e0n<\/a><\/li><li><a href=\"#appropriate-material-selection-for-main-structural-components\">L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p cho c\u00e1c c\u1ea5u ki\u1ec7n k\u1ebft c\u1ea5u ch\u00ednh<\/a><\/li><\/ul><\/li><li><a href=\"#safe-operating-conditions-of-casting-crane\">\u0110i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh an to\u00e0n c\u1ee7a c\u1ea7n c\u1ea9u \u0111\u00fac<\/a><\/li><li><a href=\"#frequent-or-intensive-casting-crane-use\">S\u1eed d\u1ee5ng c\u1ea7n c\u1ea9u \u0111\u00fac th\u01b0\u1eddng xuy\u00ean ho\u1eb7c c\u01b0\u1eddng \u0111\u1ed9 cao<\/a><\/li><li><a href=\"#key-considerations-for-casting-crane-designers\">Nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng c\u1ea7n xem x\u00e9t \u0111\u1ed1i v\u1edbi c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf c\u1ea7n c\u1ea9u \u0111\u00fac<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p>Ph\u00f2ng ng\u1eeba m\u1ecfi v\u1eadt li\u1ec7u cho c\u1ea7n c\u1ea9u \u0111\u00fac l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu tr\u00ean c\u00e1c d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t luy\u1ec7n kim d\u00f9ng trong n\u1ea5u ch\u1ea3y, c\u00e1n, r\u00e8n, n\u1ea1p l\u00f2 v\u00e0 c\u00e1c quy tr\u00ecnh gia c\u00f4ng n\u00f3ng kh\u00e1c. V\u1edbi s\u1ef1 ra \u0111\u1eddi li\u00ean t\u1ee5c c\u1ee7a c\u00e1c c\u00f4ng ngh\u1ec7 v\u00e0 thi\u1ebft b\u1ecb n\u1ea5u ch\u1ea3y hi\u1ec7n \u0111\u1ea1i, y\u00eau c\u1ea7u v\u1ec1 t\u1ed1c \u0111\u1ed9 n\u00e2ng, v\u1eadn h\u00e0nh v\u00e0 m\u1ee9c \u0111\u1ed9 l\u00e0m vi\u1ec7c c\u1ee7a c\u1ea7n c\u1ea9u \u0111\u00fac ng\u00e0y c\u00e0ng cao. Khi c\u1ea5p \u0111\u1ed9 t\u1ea3i tr\u1ecdng t\u1ed5ng th\u1ec3 c\u1ee7a c\u1ea7n c\u1ea9u t\u0103ng l\u00ean, vi\u1ec7c ng\u0103n ng\u1eeba h\u01b0 h\u1ecfng do m\u1ecfi \u1edf c\u00e1c b\u1ed9 ph\u1eadn k\u1ebft c\u1ea5u ch\u00ednh tr\u1edf n\u00ean c\u1ef1c k\u1ef3 quan tr\u1ecdng \u0111\u1ed1i v\u1edbi ho\u1ea1t \u0111\u1ed9ng an to\u00e0n v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/p>\n\n\n\n<p>S\u1ef1 c\u1ed1 c\u1ea7n c\u1ea9u \u0111\u00fac do l\u1ed7i thi\u1ebft k\u1ebf ho\u1eb7c s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m hi\u1ec7u qu\u1ea3 v\u00e0 s\u1ea3n l\u01b0\u1ee3ng s\u1ea3n xu\u1ea5t, l\u00e0m ng\u1eebng ho\u1ea1t \u0111\u1ed9ng to\u00e0n b\u1ed9 d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t, ho\u1eb7c trong tr\u01b0\u1eddng h\u1ee3p nghi\u00eam tr\u1ecdng, l\u00e0m h\u01b0 h\u1ecfng thi\u1ebft b\u1ecb m\u1eb7t \u0111\u1ea5t v\u00e0 g\u00e2y th\u01b0\u01a1ng t\u00edch nghi\u00eam tr\u1ecdng ho\u1eb7c t\u1eed vong.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"842\" height=\"430\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/08\/casting-crane-2.png\" alt=\"\" class=\"wp-image-17328\" style=\"width:838px;height:auto\"><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"causes-of-fatigue-failure-in-main-structural-components\">Nguy\u00ean nh\u00e2n g\u00e2y ra h\u1ecfng h\u00f3c do m\u1ecfi \u1edf c\u00e1c c\u1ea5u ki\u1ec7n k\u1ebft c\u1ea5u ch\u00ednh<\/h2>\n\n\n\n<p>\u1ee8ng su\u1ea5t thay \u0111\u1ed5i l\u1eb7p \u0111i l\u1eb7p l\u1ea1i c\u00f3 th\u1ec3 g\u00e2y ra v\u1ebft n\u1ee9t t\u1ea1i \u0111i\u1ec3m t\u1eadp trung \u1ee9ng su\u1ea5t sau m\u1ed9t s\u1ed1 chu k\u1ef3 nh\u1ea5t \u0111\u1ecbnh. Trong \u0111i\u1ec1u ki\u1ec7n th\u00edch h\u1ee3p, v\u1ebft n\u1ee9t lan r\u1ed9ng v\u00e0 cu\u1ed1i c\u00f9ng g\u00e2y ra g\u00e3y \u0111\u1ed9t ng\u1ed9t. Qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 h\u1ecfng do m\u1ecfi, v\u00e0 s\u1ed1 chu k\u1ef3 \u1ee9ng su\u1ea5t tr\u01b0\u1edbc khi h\u1ecfng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 tu\u1ed5i th\u1ecd m\u1ecfi.<\/p>\n\n\n\n<p>T\u1ea5t c\u1ea3 c\u00e1c b\u1ed9 ph\u1eadn c\u1ea5u tr\u00fac trong thi\u1ebft b\u1ecb c\u01a1 kh\u00ed \u0111\u1ec1u c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng do m\u1ecfi. Th\u1ed1ng k\u00ea cho th\u1ea5y m\u1ecfi kim lo\u1ea1i g\u00e2y ra h\u01a1n 801 t\u1ea5n tai n\u1ea1n g\u00e3y v\u1ee1 trong c\u00e1c s\u1ea3n ph\u1ea9m c\u01a1 kh\u00ed. C\u00e1c b\u1ed9 ph\u1eadn c\u1ea5u tr\u00fac ch\u00ednh c\u1ee7a c\u1ea7n c\u1ea9u \u0111\u00fac luy\u1ec7n kim ch\u1ecbu t\u1ea3i tr\u1ecdng chu k\u1ef3 ho\u1eb7c ng\u1eabu nhi\u00ean thay \u0111\u1ed5i, khi\u1ebfn m\u1ecfi tr\u1edf th\u00e0nh nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y h\u1ecfng h\u00f3c.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"prevention-and-control-of-fatigue-failure-in-main-structural-components\">Ph\u00f2ng ng\u1eeba v\u00e0 ki\u1ec3m so\u00e1t s\u1ef1 h\u01b0 h\u1ecfng do m\u1ecfi trong c\u00e1c c\u1ea5u ki\u1ec7n k\u1ebft c\u1ea5u ch\u00ednh<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"rational-design-of-main-structural-components\">Thi\u1ebft k\u1ebf h\u1ee3p l\u00fd c\u00e1c th\u00e0nh ph\u1ea7n c\u1ea5u tr\u00fac ch\u00ednh<\/h3>\n\n\n\n<p>a. Ch\u1ecdn ti\u1ebft di\u1ec7n ph\u00f9 h\u1ee3p cho c\u00e1c c\u1ea5u ki\u1ec7n k\u1ebft c\u1ea5u ch\u00ednh theo c\u1ea5p t\u1ea3i c\u1ee7a c\u1ea7n c\u1ea9u \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh trong h\u1ee3p \u0111\u1ed3ng \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 c\u1ee9ng. C\u1ea7n c\u1ea9u c\u00f3 c\u1ea5p t\u1ea3i A6 tr\u1edf l\u00ean c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u1ed9 b\u1ec1n m\u1ecfi.<\/p>\n\n\n\n<p>b. \u0110\u01b0\u1eddng truy\u1ec1n t\u1ea3i tr\u1ecdng trong c\u00e1c c\u1ea5u ki\u1ec7n ch\u1ecbu l\u1ef1c c\u1ea7n ph\u1ea3i \u0111\u01a1n gi\u1ea3n, r\u00f5 r\u00e0ng v\u00e0 li\u00ean t\u1ee5c.<\/p>\n\n\n\n<p>c. Tr\u00e1nh thay \u0111\u1ed5i ti\u1ebft di\u1ec7n \u0111\u1ed9t ng\u1ed9t \u1edf nh\u1eefng v\u00f9ng ch\u1ecbu \u1ee9ng su\u1ea5t cao, v\u00ec \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn h\u1ecfng h\u00f3c do m\u1ecfi.<\/p>\n\n\n\n<p>d. Thi\u1ebft k\u1ebf c\u00e1c c\u01a1 c\u1ea5u v\u00e0 c\u1ea5u ki\u1ec7n k\u1ebft c\u1ea5u \u0111\u1ec3 tr\u00e1nh c\u00e1c k\u1ebft c\u1ea5u kh\u00f4ng x\u00e1c \u0111\u1ecbnh v\u1ec1 m\u1eb7t t\u0129nh h\u1ecdc khi c\u00f3 th\u1ec3, \u01b0u ti\u00ean c\u00e1c thi\u1ebft k\u1ebf x\u00e1c \u0111\u1ecbnh v\u1ec1 m\u1eb7t t\u0129nh h\u1ecdc.<\/p>\n\n\n\n<p>e. H\u00e3y \u0111\u1eb7c bi\u1ec7t ch\u00fa \u00fd \u0111\u1ebfn c\u00e1c m\u1ed1i n\u1ed1i gi\u1eefa t\u1ea5m d\u00e0y v\u00e0 t\u1ea5m m\u1ecfng, c\u00e1c ph\u1ea7n \u0111\u1ea7u d\u1ea7m ch\u00ednh, b\u1ed1 tr\u00ed c\u00e1c l\u1ed7 m\u1edf ti\u1ebfp c\u1eadn v\u00e0 b\u00e1n k\u00ednh g\u00f3c l\u01b0\u1ee3n (R) c\u1ee7a c\u00e1c t\u1ea5m u\u1ed1n cong.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"appropriate-weld-selection-and-welding-quality\">L\u1ef1a ch\u1ecdn m\u1ed1i h\u00e0n ph\u00f9 h\u1ee3p v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng h\u00e0n<\/h3>\n\n\n\n<p>a. C\u00e1c lo\u1ea1i m\u1ed1i h\u00e0n ph\u1ea3i tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n hi\u1ec7n h\u00e0nh. Thi\u1ebft k\u1ebf c\u1ea7n ch\u00fa tr\u1ecdng \u0111\u1ebfn c\u00e1c m\u1ed1i n\u1ed1i gi\u00e1p m\u00e9p t\u1ea5m, bao g\u1ed3m c\u1ea3 c\u00e1c m\u1ed1i n\u1ed1i d\u00e0y-m\u1ecfng, c\u00e1c d\u1ea1ng r\u00e3nh tr\u00ean t\u1ea5m d\u00e0y, c\u00e1c m\u1ed1i n\u1ed1i h\u00ecnh tr\u1ee5 theo chu vi v\u00e0 theo chi\u1ec1u d\u1ecdc, v\u00e0 c\u00e1c k\u00fd hi\u1ec7u h\u00e0n t\u1ea1i c\u00e1c \u0111i\u1ec3m n\u1ed1i.<\/p>\n\n\n\n<p>b. Kh\u1ea3 n\u0103ng ch\u1ecbu m\u1ecfi c\u00f3 li\u00ean quan m\u1eadt thi\u1ebft \u0111\u1ebfn lo\u1ea1i v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng m\u1ed1i h\u00e0n. C\u00e1c m\u1ed1i h\u00e0n ph\u1ea3i \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n li\u00ean quan v\u00ec nhi\u1ec1u h\u01b0 h\u1ecfng do m\u1ecfi k\u1ebft c\u1ea5u b\u1eaft ngu\u1ed3n t\u1eeb c\u00e1c m\u1ed1i h\u00e0n.<\/p>\n\n\n\n<p>c. Que h\u00e0n, d\u00e2y h\u00e0n v\u00e0 ch\u1ea5t tr\u1ee3 dung ph\u1ea3i t\u01b0\u01a1ng th\u00edch v\u1edbi v\u1eadt li\u1ec7u c\u1ea7n h\u00e0n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"appropriate-material-selection-for-main-structural-components\">L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p cho c\u00e1c c\u1ea5u ki\u1ec7n k\u1ebft c\u1ea5u ch\u00ednh<\/h3>\n\n\n\n<p>a. V\u1eadt li\u1ec7u c\u01a1 b\u1ea3n cho c\u00e1c c\u1ea5u ki\u1ec7n k\u1ebft c\u1ea5u ch\u00ednh ph\u1ea3i tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n hi\u1ec7n h\u00e0nh v\u00e0 c\u00f3 ch\u1ee9ng nh\u1eadn v\u1eadt li\u1ec7u h\u1ee3p l\u1ec7.<\/p>\n\n\n\n<p>b. \u0110\u1ed1i v\u1edbi d\u1ea7m h\u1ed9p kh\u00f4ng ray, ph\u1ea7n tr\u00ean c\u1ee7a b\u1ea3n b\u1ee5ng ch\u00ednh ph\u1ea3i s\u1eed d\u1ee5ng th\u00e9p h\u00ecnh ch\u1eef T. Kh\u1ea3 n\u0103ng ch\u1ecbu n\u00e9n c\u1ee7a n\u00f3 ph\u1ea3i \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 \u1ee9ng su\u1ea5t n\u00e9n c\u1ee5c b\u1ed9 trong \u0110i\u1ec1u 5.4.1.2 c\u1ee7a ti\u00eau chu\u1ea9n thi\u1ebft k\u1ebf (theo GB\/T 3811). N\u1ebfu kh\u00f4ng c\u00f3 th\u00e9p h\u00ecnh ch\u1eef T, h\u00e3y n\u1ed1i b\u1ea3n b\u1ee5ng ch\u00ednh v\u1edbi m\u1eb7t b\u00edch ch\u1ecbu n\u00e9n b\u1eb1ng c\u00e1c m\u1ed1i h\u00e0n r\u00e3nh ch\u1eef K li\u00ean t\u1ee5c hai m\u1eb7t xuy\u00ean su\u1ed1t ho\u00e0n to\u00e0n.<\/p>\n\n\n\n<p>c. C\u00e1c b\u1ed9 ph\u1eadn truy\u1ec1n t\u1ea3i tr\u1ecdng l\u01b0\u1ee3ng quan tr\u1ecdng c\u1ea7n \u0111\u01b0\u1ee3c c\u1eaft sao cho h\u01b0\u1edbng l\u1ef1c ch\u00ednh c\u1ee7a ch\u00fang tu\u00e2n theo h\u01b0\u1edbng c\u00e1n c\u1ee7a t\u1ea5m.<\/p>\n\n\n\n<p>e. Ch\u1ecdn b\u00e1n k\u00ednh u\u1ed1n t\u1ea5m R \u0111\u1ec3 duy tr\u00ec \u0111\u01b0\u1eddng truy\u1ec1n t\u1ea3i tr\u1ecdng tr\u01a1n tru v\u00e0 tr\u00e1nh nh\u1eefng thay \u0111\u1ed5i \u0111\u1ed9t ng\u1ed9t trong d\u00f2ng \u1ee9ng su\u1ea5t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"safe-operating-conditions-of-casting-crane\">\u0110i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh an to\u00e0n c\u1ee7a c\u1ea7n c\u1ea9u \u0111\u00fac <\/h2>\n\n\n\n<p>Vi\u1ec7c v\u1eadn h\u00e0nh an to\u00e0n c\u1ea7n c\u1ea9u \u0111\u00fac ph\u1ee5 thu\u1ed9c v\u00e0o thi\u1ebft k\u1ebf, ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n xu\u1ea5t, quy tr\u00ecnh v\u1eadn h\u00e0nh, b\u1ea3o tr\u00ec v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/08\/safety-regulation-of-casting-crane_english.png\" alt=\"\" class=\"wp-image-17325\"><\/figure>\n\n\n\n<p>Ngo\u00e0i ra, c\u1ea7n v\u1eadn h\u00e0nh c\u1ea7n c\u1ea9u \u0111\u00fac theo \u0111\u00fang quy \u0111\u1ecbnh qu\u1ed1c gia v\u00e0 h\u1ee3p \u0111\u1ed3ng, s\u1eed d\u1ee5ng \u0111\u00fang quy tr\u00ecnh v\u00e0 b\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"frequent-or-intensive-casting-crane-use\">S\u1eed d\u1ee5ng c\u1ea7n c\u1ea9u \u0111\u00fac th\u01b0\u1eddng xuy\u00ean ho\u1eb7c c\u01b0\u1eddng \u0111\u1ed9 cao<\/h2>\n\n\n\n<p>C\u1ea5p \u0111\u1ed9 l\u00e0m vi\u1ec7c c\u1ee7a c\u1ea7n c\u1ea9u \u0111\u00fac ph\u1ee5 thu\u1ed9c ch\u1eb7t ch\u1ebd v\u00e0o t\u1ea7n su\u1ea5t v\u1eadn h\u00e0nh v\u00e0 \u0111i\u1ec1u ki\u1ec7n t\u1ea3i tr\u1ecdng. V\u1eadn h\u00e0nh l\u00e2u d\u00e0i, t\u1ea7n su\u1ea5t cao d\u01b0\u1edbi t\u1ea3i tr\u1ecdng n\u1eb7ng c\u00f3 th\u1ec3 l\u00e0m h\u01b0 h\u1ecfng k\u1ebft c\u1ea5u v\u00e0 c\u01a1 c\u1ea5u, khi\u1ebfn c\u1ea7n c\u1ea9u \u0111\u1ea1t \u0111\u1ebfn tu\u1ed5i th\u1ecd thi\u1ebft k\u1ebf s\u1edbm h\u01a1n d\u1ef1 ki\u1ebfn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"key-considerations-for-casting-crane-designers\">Nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng c\u1ea7n xem x\u00e9t \u0111\u1ed1i v\u1edbi c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf c\u1ea7n c\u1ea9u \u0111\u00fac<\/h2>\n\n\n\n<p>Trong qu\u00e1 tr\u00ecnh chu\u1ea9n b\u1ecb h\u1ee3p \u0111\u1ed3ng v\u00e0 th\u1ea3o lu\u1eadn k\u1ef9 thu\u1eadt, ng\u01b0\u1eddi s\u1eed d\u1ee5ng c\u1ea7n cung c\u1ea5p c\u00e1c \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh th\u1ef1c t\u1ebf, t\u1ea7n su\u1ea5t v\u1eadn h\u00e0nh v\u00e0 quy tr\u00ecnh n\u1ea5u ch\u1ea3y c\u1ee7a c\u1ea7n c\u1ea9u \u0111\u00fac. Sau \u0111\u00f3, c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf c\u00f3 th\u1ec3 \u0111\u1ec1 xu\u1ea5t s\u1ef1 k\u1ebft h\u1ee3p c\u1ea5p \u0111\u1ed9 l\u00e0m vi\u1ec7c ph\u00f9 h\u1ee3p ho\u1eb7c quy \u0111\u1ecbnh r\u00f5 trong h\u1ee3p \u0111\u1ed3ng theo ti\u00eau chu\u1ea9n GB\/T 3811.<\/p>","protected":false},"excerpt":{"rendered":"Ph\u00f2ng ng\u1eeba m\u1ecfi c\u1ea7n c\u1ea9u \u0111\u00fac l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu tr\u00ean c\u00e1c d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t luy\u1ec7n kim cho c\u00e1c c\u00f4ng \u0111o\u1ea1n n\u1ea5u ch\u1ea3y, c\u00e1n, r\u00e8n, n\u1ea1p l\u00f2 v\u00e0 c\u00e1c quy tr\u00ecnh gia c\u00f4ng n\u00f3ng kh\u00e1c. V\u1edbi s\u1ef1 li\u00ean t\u1ee5c \u0111\u01b0a v\u00e0o s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng ngh\u1ec7 v\u00e0 thi\u1ebft b\u1ecb n\u1ea5u ch\u1ea3y hi\u1ec7n \u0111\u1ea1i, y\u00eau c\u1ea7u ng\u00e0y c\u00e0ng cao h\u01a1n \u0111\u1ed1i v\u1edbi t\u1ed1c \u0111\u1ed9 n\u00e2ng, t\u1ed1c \u0111\u1ed9 v\u1eadn h\u00e0nh v\u00e0 m\u1ee9c \u0111\u1ed9 l\u00e0m vi\u1ec7c c\u1ee7a c\u1ea7n c\u1ea9u \u0111\u00fac. Khi c\u1ea5p \u0111\u1ed9 l\u00e0m vi\u1ec7c t\u1ed5ng th\u1ec3 c\u1ee7a c\u1ea7n c\u1ea9u t\u0103ng l\u00ean, vi\u1ec7c ng\u0103n ng\u1eeba m\u1ecfi c\u1ea7n c\u1ea9u \u0111\u00fac tr\u1edf n\u00ean c\u1ea7n thi\u1ebft.","protected":false},"featured_media":17328,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[351],"posts_tag":[1067,206,6],"class_list":["post-17323","posts","type-posts","status-publish","has-post-thumbnail","hentry","posts_category-blog","posts_tag-casting-crane","posts_tag-dgcrane","posts_tag-overhead-crane"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/xmxposts\/17323"}],"collection":[{"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":4,"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/xmxposts\/17323\/revisions"}],"predecessor-version":[{"id":17332,"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/xmxposts\/17323\/revisions\/17332"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/media\/17328"}],"wp:attachment":[{"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/media?parent=17323"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/posts_category?post=17323"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/posts_tag?post=17323"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}