{"id":957,"date":"2025-07-31T06:19:19","date_gmt":"2025-07-31T06:19:19","guid":{"rendered":"https:\/\/lzbmetal.com\/?p=957"},"modified":"2025-07-31T06:19:20","modified_gmt":"2025-07-31T06:19:20","slug":"khung-vuong-bang-gang-deo-nap-tron","status":"publish","type":"post","link":"https:\/\/lzbmetal.com\/vi\/khung-vuong-bang-gang-deo-nap-tron\/","title":{"rendered":"N\u1eafp tr\u00f2n khung vu\u00f4ng b\u1eb1ng gang d\u1ebbo 700\u00d7800\u00d7120"},"content":{"rendered":"<h3 class=\"wp-block-heading\">I. S\u1ef1 kh\u00e9o l\u00e9o v\u1ec1 c\u1ea5u tr\u00fac &nbsp;<\/h3>\n\n\n\n<p>1. Thi\u1ebft k\u1ebf lai vu\u00f4ng-tr\u00f2n &nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Khung vu\u00f4ng (700\u00d7800mm): Nh\u00fang ho\u00e0n h\u1ea3o v\u00e0o c\u00e1c l\u1ed7 c\u1eaft b\u00ea t\u00f4ng\/nh\u1ef1a \u0111\u01b0\u1eddng, lo\u1ea1i b\u1ecf hi\u1ec7n t\u01b0\u1ee3ng d\u1ecbch chuy\u1ec3n quay. &nbsp;<\/li>\n\n\n\n<li>N\u1eafp tr\u00f2n (\u00d8650mm): Chuy\u1ec3n \u0111\u1ed5i t\u1ea3i tr\u1ecdng giao th\u00f4ng th\u00e0nh \u1ee9ng su\u1ea5t xuy\u00ean t\u00e2m (kh\u1ea3 n\u0103ng ch\u1ed1ng nghi\u1ec1n cao h\u01a1n 35% so v\u1edbi n\u1eafp h\u00ecnh ch\u1eef nh\u1eadt). &nbsp;<\/li>\n<\/ul>\n\n\n\n<p>2. H\u1ec7 th\u1ed1ng ch\u1ed1ng \u0111\u1ecbnh c\u01b0 ba c\u1ea5p &nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ph\u00e2n t\u00e1n t\u1ea3i tr\u1ecdng m\u1eb7t b\u00edch: M\u1eb7t b\u00edch r\u1ed9ng 150mm truy\u1ec1n \u00e1p su\u1ea5t 80% xu\u1ed1ng n\u1ec1n \u0111\u01b0\u1eddng. &nbsp;<\/li>\n\n\n\n<li>\u0110\u1ec7m \u0111\u00e0n h\u1ed3i: \u0110\u1ec7m Neoprene b\u00f9 \u0111\u1eafp cho s\u1ef1 d\u1ecbch chuy\u1ec3n c\u1ee7a n\u1ec1n \u0111\u1ea5t. &nbsp;<\/li>\n\n\n\n<li>Khung t\u1ef1 c\u00e2n b\u1eb1ng: Bu l\u00f4ng n\u00eam (\u0111i\u1ec1u ch\u1ec9nh \u00b115mm) \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ph\u1eb3ng v\u0129nh vi\u1ec5n. &nbsp;<\/li>\n<\/ul>\n\n\n\n<p>3. Kh\u00f3a li\u00ean \u0111\u1ed9ng an to\u00e0n n\u0103m l\u1edbp &nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ch\u1ed1ng tr\u1ed9m: Kh\u00f3a ba l\u1ed7 \u1ea9n y\u00eau c\u1ea7u ph\u1ea3i c\u00f3 c\u00f4ng c\u1ee5 chuy\u00ean d\u1ee5ng. &nbsp;<\/li>\n\n\n\n<li>Ch\u1ed1ng r\u01a1i: L\u01b0\u1edbi s\u1eaft d\u1ebbo 30\u00d730mm (t\u1ea3i tr\u1ecdng 300kg). &nbsp;<\/li>\n\n\n\n<li>Ch\u1ed1ng d\u1ecbch chuy\u1ec3n: T\u00e1m m\u1ecf neo M20 (s\u00e2u 500mm). &nbsp;<\/li>\n\n\n\n<li>Ch\u1ed1ng \u1ed3n: Gio\u0103ng silicon r\u00e3nh ch\u1eef U gi\u00fap gi\u1ea3m ti\u1ebfng \u1ed3n rung \u0111\u1ed9ng 18dB. &nbsp;<\/li>\n\n\n\n<li>Ch\u1ed1ng tr\u01b0\u1ee3t: C\u00e1c \u0111\u01b0\u1eddng v\u00e2n kim c\u01b0\u01a1ng (h\u1ec7 s\u1ed1 ma s\u00e1t 0,92). &nbsp;<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">II. N\u0103m l\u1ee3i th\u1ebf chi\u1ebfn tr\u01b0\u1eddng &nbsp;<\/h3>\n\n\n\n<p>1. Kh\u00e1ng c\u1ef1 thanh to\u00e1n k\u00e9p &nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>S\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa khung v\u00e0 nh\u1ef1a \u0111\u01b0\u1eddng h\u1ea1n ch\u1ebf \u0111\u1ed9 l\u00fan \u1edf m\u1ee9c \u22642mm sau 5 n\u0103m (so v\u1edbi &gt;10mm \u0111\u1ed1i v\u1edbi l\u1edbp ph\u1ee7 th\u00f4ng th\u01b0\u1eddng). &nbsp;<\/li>\n\n\n\n<li>T\u1ea5m ch\u1eafn k\u00edn ng\u0103n ch\u1eb7n hi\u1ec7n t\u01b0\u1ee3ng &quot;th\u1ed1i khung&quot; do m\u01b0a g\u00e2y ra. &nbsp;<\/li>\n<\/ul>\n\n\n\n<p>2. N\u1eafm v\u1eefng t\u1ea3i tr\u1ecdng 50 t\u1ea5n &nbsp;<\/p>\n\n\n\n<p>\u0110\u1ed9 d\u00e0y 120mm + g\u00e2n ch\u1eef th\u1eadp ch\u1ecbu \u0111\u01b0\u1ee3c t\u1ea3i tr\u1ecdng 50 t\u1ea5n (v\u01b0\u1ee3t qu\u00e1 GB\/T 23858 D400). Kh\u00f4ng bi\u1ebfn d\u1ea1ng khi ch\u1ecbu t\u1ea3i tr\u1ecdng m\u00e1y \u00e9p r\u00e1c h\u00e0ng ng\u00e0y. &nbsp;<\/p>\n\n\n\n<p>3. Tho\u00e1t n\u01b0\u1edbc v\u00e0 ti\u1ebfp c\u1eadn xu\u1ea5t s\u1eafc &nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>N\u1eafp tr\u00f2n: 30% tho\u00e1t n\u01b0\u1edbc nhanh h\u01a1n n\u1eafp vu\u00f4ng; r\u00e1c th\u1ea3i tr\u01b0\u1ee3t theo \u0111\u1ed9 cong. &nbsp;<\/li>\n\n\n\n<li>Khung vu\u00f4ng: R\u00e3nh x\u00e0 beng cho ph\u00e9p n\u00e2ng b\u1eb1ng tay (t\u1ed5ng c\u1ed9ng 75kg\u2014nh\u1eb9 h\u01a1n 35% so v\u1edbi khung vu\u00f4ng \u0111\u1eb7c). &nbsp;<\/li>\n<\/ul>\n\n\n\n<p>4. Kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i t\u1eeb -40\u00b0C \u0111\u1ebfn 150\u00b0C &nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L\u1edbp ph\u1ee7 nh\u00f4m phun nhi\u1ec7t + epoxy-polyurethane c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c ch\u1ea5t ch\u1ed1ng \u0111\u00f3ng b\u0103ng\/d\u1ea7u\/axit trong h\u01a1n 30 n\u0103m. &nbsp;<\/li>\n\n\n\n<li>Kh\u00f4ng c\u00f3 bi\u1ebfn d\u1ea1ng nhi\u1ec7t t\u1eeb l\u1edbp \u0111\u1ea5t \u0111\u00f3ng b\u0103ng v\u0129nh c\u1eedu \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 l\u00e1t n\u1ec1n. &nbsp;<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">III. Giao th\u1ee9c c\u00e0i \u0111\u1eb7t ch\u00ednh &nbsp;<\/h3>\n\n\n\n<p>1. H\u1ee3p nh\u1ea5t m\u1eb7t b\u00edch-\u0111\u01b0\u1eddng &nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u00e0o &gt;100\u00d790cm; \u0111\u1eb7t khung c\u00e1ch b\u1ec1 m\u1eb7t 3cm. &nbsp;<\/li>\n\n\n\n<li>Nh\u00fang trong qu\u00e1 tr\u00ecnh tr\u1ea3i nh\u1ef1a \u0111\u01b0\u1eddng \u1edf nhi\u1ec7t \u0111\u1ed9 140\u00b0C; \u0111\u1ea7m n\u00e9n \u1edf nhi\u1ec7t \u0111\u1ed9 110\u00b0C b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p l\u0103n h\u00ecnh ch\u1eef th\u1eadp. &nbsp;<\/li>\n<\/ul>\n\n\n\n<p>2. K\u1ef9 thu\u1eadt ch\u1ed1ng d\u1ecbch chuy\u1ec3n neo &nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L\u1eafp bu l\u00f4ng M20 \u1edf g\u00f3c h\u01b0\u1edbng ra ngo\u00e0i 15\u00b0 (\u0111\u1ed9 s\u00e2u \u226535cm) v\u00e0o b\u00ea t\u00f4ng s\u1ee3i th\u00e9p C30. &nbsp;<\/li>\n\n\n\n<li>C\u1eaft b\u1edbt bu l\u00f4ng th\u1eeba; b\u1ecbt k\u00edn b\u1eb1ng nh\u1ef1a \u0111\u01b0\u1eddng n\u00f3ng. &nbsp;<\/li>\n\n\n\n<li>3. B\u1ed9 \u0111\u00f4i d\u1ed1c tho\u00e1t n\u01b0\u1edbc &nbsp;<\/li>\n\n\n\n<li>Khung nghi\u00eang ra ngo\u00e0i 3\u00b0 h\u01b0\u1edbng n\u01b0\u1edbc v\u00e0o n\u1eafp trung t\u00e2m. &nbsp;<\/li>\n\n\n\n<li>\u0110\u1ed9 d\u1ed1c \u0111\u00e1y \u22655% + h\u00ecnh n\u00f3n trung t\u00e2m l\u00e0m t\u0103ng t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y. &nbsp;<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">IV. \u1ee8ng d\u1ee5ng v\u00f4 song &nbsp;<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1. L\u00e0n \u0111\u01b0\u1eddng h\u1ed7n h\u1ee3p h\u1eb9p: Khung vu\u00f4ng th\u1eb3ng h\u00e0ng v\u1edbi l\u1ec1 \u0111\u01b0\u1eddng; khung tr\u00f2n ng\u0103n v\u0169ng n\u01b0\u1edbc. &nbsp;<\/li>\n\n\n\n<li>2. Tr\u1ea1m xe bu\u00fdt: Ch\u1ed1ng tr\u01b0\u1ee3t + im l\u1eb7ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho h\u00e0nh kh\u00e1ch. &nbsp;<\/li>\n\n\n\n<li>3. L\u1ed1i v\u00e0o c\u1ed9ng \u0111\u1ed3ng c\u0169: Ph\u00f9 h\u1ee3p ho\u00e0n h\u1ea3o v\u1edbi \u0111\u01b0\u1eddng h\u1ed7n h\u1ee3p r\u1ed9ng 5m. &nbsp;<\/li>\n\n\n\n<li>4. L\u1ed1i \u0111i c\u00f3 c\u1ea3nh quan: C\u00e1c c\u1ea1nh tr\u00f2n h\u00f2a h\u1ee3p v\u1edbi \u0111\u00e1. &nbsp;<\/li>\n\n\n\n<li>5. \u0110\u01b0\u1eddng \u0111i trong nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t: L\u1edbp ph\u1ee7 ch\u1ed1ng axit + b\u1ea3o v\u1ec7 ch\u1ed1ng r\u01a1i cho thanh tra vi\u00ean. &nbsp;<\/li>\n<\/ul>\n\n\n\n<p>So v\u1edbi n\u1eafp h\u00ecnh tr\u00f2n\/h\u00ecnh vu\u00f4ng thu\u1ea7n t\u00fay: 15% b\u1ec1n h\u01a1n h\u00ecnh vu\u00f4ng, 30% tho\u00e1t n\u01b0\u1edbc t\u1ed1t h\u01a1n h\u00ecnh tr\u00f2n, v\u1edbi s\u1ef1 c\u0103n ch\u1ec9nh ch\u00ednh x\u00e1c\u2014s\u1ef1 k\u1ebft h\u1ee3p ho\u00e0n h\u1ea3o cho c\u00e1c khu v\u1ef1c ph\u1ee9c t\u1ea1p! &nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L\u1eddi k\u1ebft: H\u00ecnh vu\u00f4ng v\u00e0 h\u00ecnh tr\u00f2n, s\u1ef1 ki\u00ean c\u01b0\u1eddng v\u00e0 c\u1ee9ng r\u1eafn &nbsp;<\/h3>\n\n\n\n<p>Hai th\u1eadp k\u1ef7 trong ngh\u1ec1, t\u00f4i \u0111\u00e3 ch\u1ee9ng ki\u1ebfn nh\u1eefng t\u1ea5m b\u00eca tr\u00f2n xoay d\u01b0\u1edbi \u00e1p l\u1ef1c v\u00e0 nh\u1eefng t\u1ea5m b\u00eca vu\u00f4ng ch\u00ecm ngh\u1ec9m trong b\u00e3o t\u1ed1. C\u00f4ng tr\u00ecnh lai 700\u00d7800\u00d7120 n\u00e0y ph\u00e1t tri\u1ec3n m\u1ea1nh m\u1ebd trong kh\u00f4ng gian ch\u1eadt h\u1eb9p nh\u1edd khung vu\u00f4ng v\u1ee9c, l\u00f5i tr\u00f2n d\u1eabn n\u01b0\u1edbc l\u0169, v\u00e0 th\u1ec3 hi\u1ec7n s\u1ee9c b\u1ec1n b\u1ec9 50 n\u0103m. L\u1ea7n t\u1edbi khi b\u1ea1n d\u1eebng xe bu\u00fdt, h\u00e3y \u0111\u1ec3 \u00fd \u0111\u1ebfn h\u00ecnh vu\u00f4ng s\u1eaft \u1ea5y \u00f4m tr\u1ecdn m\u1eb7t tr\u0103ng - l\u1eb7ng l\u1ebd h\u00f2a quy\u1ec7n gi\u1eefa b\u00e1nh xe v\u00e0 b\u01b0\u1edbc ch\u00e2n, b\u00e3o t\u1ed1 v\u00e0 m\u1eb7t tr\u1eddi, b\u1ea3o v\u1ec7 s\u1ef1 tr\u1eadt t\u1ef1 v\u00e0 h\u01a1i \u1ea5m c\u1ee7a th\u00e0nh ph\u1ed1 trong ph\u1ea1m vi c\u1ee7a n\u00f3.<\/p>","protected":false},"excerpt":{"rendered":"<p>I. S\u1ef1 tinh t\u1ebf trong k\u1ebft c\u1ea5u 1. Thi\u1ebft k\u1ebf lai vu\u00f4ng-tr\u00f2n 2. H\u1ec7 th\u1ed1ng ch\u1ed1ng l\u00fan ba t\u1ea7ng 3. Kh\u00f3a li\u00ean \u0111\u1ed9ng an to\u00e0n n\u0103m l\u1edbp II. N\u0103m \u01b0u \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i 1. Kh\u1ea3 n\u0103ng ch\u1ed1ng l\u00fan k\u00e9p 2. Kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i 50 t\u1ea5n \u0110\u1ed9 d\u00e0y 120mm + g\u00e2n ch\u1eef th\u1eadp ch\u1ecbu \u0111\u01b0\u1ee3c t\u1ea3i tr\u1ecdng 50 t\u1ea5n (v\u01b0\u1ee3t ti\u00eau chu\u1ea9n GB\/T 23858 D400). Kh\u00f4ng bi\u1ebfn d\u1ea1ng d\u01b0\u1edbi t\u1ea3i tr\u1ecdng m\u00e1y \u00e9p r\u00e1c h\u00e0ng ng\u00e0y. 3. [\u2026]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,41,2,43],"tags":[126,63,62],"class_list":["post-957","post","type-post","status-publish","format-standard","hentry","category-ductile-cast-iron-products","category-outside-square-inside-round-manhole-cover","category-products","category-square-manhole-cover","tag-ductile-cast-iron","tag-manhole-cover","tag-round-manhole-cover"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>700\u00d7800\u00d7120 Ductile Iron Square-Frame Circular Cover - Outside Square Inside Round Manhole Cover - Luzhongbao Metal Products Co., Ltd<\/title>\n<meta name=\"description\" content=\"This hybrid masterpiece merges mechanical elegance with engineering philosophy\u2014a square frame tames ground deformation while a circular cover disperses crushing loads. Its 120mm-thick ductile iron body bears not just vehicles, but urban safety itself; 50-year corrosion resistance pledges sustainable legacy. 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Its 120mm-thick ductile iron body bears not just vehicles, but urban safety itself; 50-year corrosion resistance pledges sustainable legacy. 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