{"id":1189,"date":"2025-09-17T07:02:57","date_gmt":"2025-09-17T07:02:57","guid":{"rendered":"https:\/\/lzbmetal.com\/?p=1189"},"modified":"2025-09-17T07:02:58","modified_gmt":"2025-09-17T07:02:58","slug":"nap-ho-ga-chong-lun-bang-gang-deo-720x880x190","status":"publish","type":"post","link":"https:\/\/lzbmetal.com\/vi\/nap-ho-ga-chong-lun-bang-gang-deo-720x880x190\/","title":{"rendered":"N\u1eafp h\u1ed1 ga ch\u1ed1ng l\u00fan b\u1eb1ng gang d\u1ebbo 720\u00d7880\u00d7190"},"content":{"rendered":"<h3 class=\"wp-block-heading\">I. Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ed1t l\u00f5i v\u00e0 nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf &nbsp;<\/h3>\n\n\n\n<p>K\u00edch th\u01b0\u1edbc: &nbsp;<\/p>\n\n\n\n<p>Thi\u1ebft k\u1ebf h\u00ecnh ch\u1eef nh\u1eadt: Kho\u1ea3ng s\u00e1ng b\u00ean trong 720mm (c\u1ea1nh ng\u1eafn) \u00d7 880mm (c\u1ea1nh d\u00e0i) &nbsp;<\/p>\n\n\n\n<p>\u0110\u1ed9 d\u00e0y t\u1ed5ng th\u1ec3: 190mm (bao g\u1ed3m th\u00e2n n\u1eafp, l\u1edbp ch\u1ed1ng l\u00fan v\u00e0 l\u1edbp ph\u1ee7 ch\u1ed1ng r\u01a1i) &nbsp;<\/p>\n\n\n\n<p>\u0110\u1ed5i m\u1edbi c\u1ea5u tr\u00fac: &nbsp;<\/p>\n\n\n\n<p>Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c thi\u1ebft k\u1ebf &quot;ki\u1ec3u b\u1ec7&quot; truy\u1ec1n th\u1ed1ng, m\u1eb7t b\u00edch d\u1ea1ng v\u00f2i v\u00e0 \u1ed5 c\u1eafm truy\u1ec1n t\u1ea3i t\u1ea3i tr\u1ecdng giao th\u00f4ng &gt;80% tr\u1ef1c ti\u1ebfp xu\u1ed1ng n\u1ec1n \u0111\u01b0\u1eddng\u2014kh\u00f4ng ph\u1ea3i tr\u1ee5c g\u1ea1ch\u2014ng\u0103n ng\u1eeba hi\u1ec7n t\u01b0\u1ee3ng l\u00fan theo b\u1eadc thang v\u00e0 l\u00fan theo chu vi. &nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">II. N\u0103m l\u1ee3i th\u1ebf \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh tr\u00ean chi\u1ebfn tr\u01b0\u1eddng &nbsp;<\/h3>\n\n\n\n<p>1. Lo\u1ea1i b\u1ecf gi\u1ea3i quy\u1ebft &nbsp;<\/p>\n\n\n\n<p>S\u1ef1 t\u00edch h\u1ee3p m\u1eb7t b\u00edch-nh\u1ef1a \u0111\u01b0\u1eddng duy tr\u00ec \u0111\u1ed9 l\u1ec7ch \u22643mm sau 5 n\u0103m (so v\u1edbi &gt;15mm \u0111\u1ed1i v\u1edbi l\u1edbp ph\u1ee7 th\u00f4ng th\u01b0\u1eddng). &nbsp;<\/p>\n\n\n\n<p>Gio\u0103ng thu\u00f4n nh\u1ecdn + v\u00e0nh ch\u1eafn n\u01b0\u1edbc gi\u00fap ng\u0103n ch\u1eb7n s\u1ef1 x\u00f3i m\u00f2n do m\u01b0a. &nbsp;<\/p>\n\n\n\n<p>2. N\u1eafm v\u1eefng t\u1ea3i tr\u1ecdng 65 t\u1ea5n &nbsp;<\/p>\n\n\n\n<p>\u0110\u1ed9 d\u00e0y 190mm + g\u00e2n h\u01b0\u1edbng t\u00e2m ch\u1ecbu \u0111\u01b0\u1ee3c t\u1ea3i tr\u1ecdng 65 t\u1ea5n (v\u01b0\u1ee3t qu\u00e1 ti\u00eau chu\u1ea9n 36 t\u1ea5n c\u1ee7a GB\/T 23858 D400). Kh\u00f4ng b\u1ecb bi\u1ebfn d\u1ea1ng khi xe container l\u01b0u th\u00f4ng h\u00e0ng ng\u00e0y. &nbsp;<\/p>\n\n\n\n<p>3. Ng\u0169 B\u1ea3o Th\u00e0nh &nbsp;<\/p>\n\n\n\n<p>\u0110\u1ed9 \u1ed3n: \u226443dB v\u1edbi b\u1ed9 gi\u1ea3m ch\u1ea5n cao su T (y\u00ean t\u0129nh \u1edf m\u1ee9c m\u00f4i tr\u01b0\u1eddng xung quanh). &nbsp;<\/p>\n\n\n\n<p>Ch\u1ed1ng tr\u01b0\u1ee3t: S\u00f3ng kh\u1eafc laser + c\u00e1c kh\u00eda si\u00eau nh\u1ecf (ma s\u00e1t \u01b0\u1edbt 0,68 &gt; 0,6 theo ti\u00eau chu\u1ea9n qu\u1ed1c gia). &nbsp;<\/p>\n\n\n\n<p>Ch\u1ed1ng tr\u1ed9m: Kh\u00f4ng c\u00f3 gi\u00e1 tr\u1ecb ph\u1ebf li\u1ec7u + kh\u00f3a b\u1ea3n l\u1ec1 \u1ea9n (t\u1ef7 l\u1ec7 tr\u1ed9m c\u1eafp 0%). &nbsp;<\/p>\n\n\n\n<p>Ch\u1ed1ng n\u1ea3y: Tay l\u00f2 xo trung h\u00f2a l\u1ef1c t\u00e1c \u0111\u1ed9ng c\u1ee7a b\u00e1nh xe. &nbsp;<\/p>\n\n\n\n<p>Ch\u1ed1ng r\u01a1i: N\u1eafp \u0111\u1eady c\u00f3 kh\u00f3a c\u01a1 h\u1ecdc. &nbsp;<\/p>\n\n\n\n<p>4. C\u1ef1u chi\u1ebfn binh m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t &nbsp;<\/p>\n\n\n\n<p>L\u1edbp ph\u1ee7 k\u1ebdm nh\u00fang n\u00f3ng + epoxy-nh\u1ef1a \u0111\u01b0\u1eddng ch\u1ed1ng l\u1ea1i ch\u1ea5t ph\u00e1 b\u0103ng\/axit\/d\u1ea7u (ch\u1ecbu \u0111\u01b0\u1ee3c s\u1ef1 phun mu\u1ed1i tr\u00ean 25 n\u0103m). &nbsp;<\/p>\n\n\n\n<p>\u1ed4n \u0111\u1ecbnh t\u1eeb -40\u00b0C (\u0111\u1ea5t \u0111\u00f3ng b\u0103ng v\u0129nh c\u1eedu) \u0111\u1ebfn 180\u00b0C (b\u1ee9c x\u1ea1 nh\u00e0 m\u00e1y th\u00e9p). &nbsp;<\/p>\n\n\n\n<p>5. Cu\u1ed9c c\u00e1ch m\u1ea1ng v\u1eadn h\u00e0nh v\u00e0 b\u1ea3o tr\u00ec th\u00f4ng minh &nbsp;<\/p>\n\n\n\n<p>Chip RFID t\u00f9y ch\u1ecdn l\u01b0u tr\u1eef nh\u1eadt k\u00fd b\u1ea3o tr\u00ec\/thu\u1ed9c t\u00ednh\/\u0111\u1ed9 s\u00e2u \u0111\u01b0\u1eddng \u1ed1ng\u2014ki\u1ec3m tra nhanh h\u01a1n g\u1ea5p 5 l\u1ea7n th\u00f4ng qua qu\u00e9t di \u0111\u1ed9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">III. N\u0103m l\u1ee3i th\u1ebf \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh trong th\u1ef1c chi\u1ebfn &nbsp;<\/h3>\n\n\n\n<p>1. X\u00f3a b\u1ecf \u0111\u1ecbnh c\u01b0 &nbsp;<\/p>\n\n\n\n<p>S\u1ef1 t\u00edch h\u1ee3p gi\u1eefa khung v\u00e0 nh\u1ef1a \u0111\u01b0\u1eddng gi\u00fap duy tr\u00ec \u0111\u1ed9 ph\u1eb3ng c\u1ee7a b\u1ec1 m\u1eb7t (\u0111\u1ed9 l\u1ec7ch \u22643mm sau 5 n\u0103m t\u1ea1i c\u00e1c tuy\u1ebfn \u0111\u01b0\u1eddng v\u1eadn chuy\u1ec3n h\u00e0ng h\u00f3a trong c\u1ea3ng). &nbsp;<\/p>\n\n\n\n<p>Thi\u1ebft k\u1ebf c\u1ea1nh ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc ng\u0103n ch\u1eb7n s\u1ef1 x\u00e2m nh\u1eadp c\u1ee7a n\u01b0\u1edbc m\u01b0a. &nbsp;<\/p>\n\n\n\n<p>2. Bi\u00ean \u0111\u1ed9 an to\u00e0n 60 t\u1ea5n &nbsp;<\/p>\n\n\n\n<p>K\u1ebft c\u1ea5u ch\u1eadu s\u00e2u + g\u00e2n ngang ch\u1ecbu \u0111\u01b0\u1ee3c qu\u00e1 t\u1ea3i (v\u00ed d\u1ee5 xe ben 60 t\u1ea5n), u\u1ed1n cong m\u00e0 kh\u00f4ng g\u00e3y. <\/p>\n\n\n\n<p>3. N\u0103m bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 \u0111ang \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n &nbsp;<\/p>\n\n\n\n<p>\u0110\u1ed9 \u1ed3n: \u226445dB t\u1ea1i khu d\u00e2n c\u01b0. &nbsp;<\/p>\n\n\n\n<p>Ch\u1ed1ng tr\u01b0\u1ee3t: C\u00e1c kh\u00eda kim c\u01b0\u01a1ng 3mm (h\u1ec7 s\u1ed1 ma s\u00e1t 0,65 khi \u01b0\u1edbt). &nbsp;<\/p>\n\n\n\n<p>Ch\u1ed1ng tr\u1ed9m: T\u1ef7 l\u1ec7 tr\u1ed9m c\u1eafp g\u1ea7n nh\u01b0 b\u1eb1ng kh\u00f4ng (v\u1eadt li\u1ec7u kh\u00f4ng th\u1ec3 t\u00e1i ch\u1ebf + kh\u00f3a \u1ea9n). &nbsp;<\/p>\n\n\n\n<p>Ch\u1ed1ng r\u01a1i: B\u1ea3o v\u1ec7 hai l\u1edbp. &nbsp;<\/p>\n\n\n\n<p>4. Kh\u1ea3 n\u0103ng th\u00edch nghi v\u1edbi m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t &nbsp;<\/p>\n\n\n\n<p>Ch\u1ed1ng l\u1ea1i ch\u1ea5t ph\u00e1 b\u0103ng, m\u01b0a axit v\u00e0 d\u1ea7u (hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh \u1edf nhi\u1ec7t \u0111\u1ed9 t\u1eeb -30\u00b0C \u0111\u1ebfn 150\u00b0C). &nbsp;<\/p>\n\n\n\n<p>5. Hi\u1ec7u qu\u1ea3 v\u1eadn h\u00e0nh v\u00e0 b\u1ea3o tr\u00ec th\u00f4ng minh &nbsp;<\/p>\n\n\n\n<p>RFID &quot;E-ID&quot;: D\u1eef li\u1ec7u \u0111\u01b0\u1eddng \u1ed1ng c\u00f3 th\u1ec3 qu\u00e9t qua thi\u1ebft b\u1ecb di \u0111\u1ed9ng. &nbsp;<\/p>\n\n\n\n<p>Kh\u00f4ng c\u1ea7n b\u1ea3o tr\u00ec: Tu\u1ed5i th\u1ecd 30 n\u0103m; ch\u1ec9 c\u1ea7n x\u1ea3 s\u1ea1ch m\u1ea3nh v\u1ee5n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">IV. Giao th\u1ee9c c\u00e0i \u0111\u1eb7t quan tr\u1ecdng &nbsp;<\/h3>\n\n\n\n<p>1. Neo ch\u1ed1ng &quot;ch\u00e2n m\u1ec1m&quot; &nbsp;<\/p>\n\n\n\n<p>\u0110\u00e0o \u0111\u1ea5t c\u00f3 \u0111\u01b0\u1eddng k\u00ednh &gt;130cm (khung + l\u1ec1 20cm). &nbsp;<\/p>\n\n\n\n<p>L\u1ea5p \u0111\u1ea7y b\u1eb1ng b\u00ea t\u00f4ng s\u1ee3i th\u00e9p C30 (kh\u00f4ng c\u00f3 \u0111\u1ea5t t\u01a1i x\u1ed1p). &nbsp;<\/p>\n\n\n\n<p>Neo M20 s\u00e2u \u226535cm \u1edf g\u00f3c h\u01b0\u1edbng ra ngo\u00e0i 15\u00b0. &nbsp;<\/p>\n\n\n\n<p>2. \u0110\u01b0\u1eddng d\u00e2y n\u00f3ng t\u00edch h\u1ee3p \u0111\u01b0\u1eddng b\u1ed9 &nbsp;<\/p>\n\n\n\n<p>Ph\u1ea7n tr\u00ean c\u1ee7a khung c\u00e1ch m\u1eb7t \u0111\u01b0\u1eddng 4\u20136cm. &nbsp;<\/p>\n\n\n\n<p>N\u00e9n nh\u1ef1a \u0111\u01b0\u1eddng hai giai \u0111o\u1ea1n: ban \u0111\u1ea7u \u1edf nhi\u1ec7t \u0111\u1ed9 140\u00b0C, giai \u0111o\u1ea1n cu\u1ed1i \u1edf nhi\u1ec7t \u0111\u1ed9 110\u00b0C. &nbsp;<\/p>\n\n\n\n<p>C\u00e1c m\u1ed1i n\u1ed1i \u0111\u01b0\u1ee3c l\u1ea5p \u0111\u1ea7y b\u1eb1ng nh\u1ef1a \u0111\u01b0\u1eddng bi\u1ebfn t\u00ednh \u1edf nhi\u1ec7t \u0111\u1ed9 180\u00b0C. &nbsp;<\/p>\n\n\n\n<p>3. T\u1ed1i \u01b0u h\u00f3a \u0111\u1ed9 d\u1ed1c tho\u00e1t n\u01b0\u1edbc &nbsp;<\/p>\n\n\n\n<p>\u0110\u1ed9 nghi\u00eang ra ngo\u00e0i 5\u00b0 (so v\u1edbi ti\u00eau chu\u1ea9n 3\u00b0)\u201430% tho\u00e1t n\u01b0\u1edbc m\u01b0a nhanh h\u01a1n qua chi\u1ec1u d\u00e0i 950mm. &nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">V. C\u00e1c \u1ee9ng d\u1ee5ng ch\u00ednh &nbsp;<\/h3>\n\n\n\n<p>Khu v\u1ef1c si\u00eau n\u1eb7ng: B\u00e3i ch\u1ee9a container t\u1ea1i c\u1ea3ng, \u0111\u01b0\u1eddng l\u0103n s\u00e2n bay, h\u00e0nh lang xe chuy\u00ean d\u1ee5ng (s\u1ee9c ch\u1ee9a 100 t\u1ea5n). &nbsp;<\/p>\n\n\n\n<p>\u0110\u1ecba ch\u1ea5t nh\u1ea1y c\u1ea3m: \u0110\u1ea5t m\u1ec1m, khu v\u1ef1c l\u1ea5p \u0111\u1ea7y d\u1ec5 b\u1ecb l\u00fan. &nbsp;<\/p>\n\n\n\n<p>Tr\u00ecnh di\u1ec5n th\u00e0nh ph\u1ed1 th\u00f4ng minh: C\u00e1c n\u00fat \u0111\u01b0\u1eddng \u1ed1ng c\u1ed1t l\u00f5i cho IoT \u0111\u00f4 th\u1ecb.<\/p>","protected":false},"excerpt":{"rendered":"<p>I. Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ed1t l\u00f5i &amp; Nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf K\u00edch th\u01b0\u1edbc: Thi\u1ebft k\u1ebf h\u00ecnh ch\u1eef nh\u1eadt: Kho\u1ea3ng s\u00e1ng g\u1ea7m b\u00ean trong 720mm (c\u1ea1nh ng\u1eafn) \u00d7 880mm (c\u1ea1nh d\u00e0i) T\u1ed5ng \u0111\u1ed9 d\u00e0y: 190mm (bao g\u1ed3m th\u00e2n n\u1eafp, l\u1edbp ch\u1ed1ng l\u00fan v\u00e0 l\u1edbp ph\u1ee7 ch\u1ed1ng r\u01a1i) C\u1ea3i ti\u1ebfn v\u1ec1 c\u1ea5u tr\u00fac: Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c thi\u1ebft k\u1ebf &quot;ki\u1ec3u b\u1ec7&quot; truy\u1ec1n th\u1ed1ng, m\u1eb7t b\u00edch d\u1ea1ng v\u00f2i v\u00e0 \u1ed5 c\u1eafm truy\u1ec1n t\u1ea3i tr\u1ecdng giao th\u00f4ng &gt;80% tr\u1ef1c ti\u1ebfp xu\u1ed1ng n\u1ec1n \u0111\u01b0\u1eddng\u2014kh\u00f4ng ph\u1ea3i tr\u1ee5c g\u1ea1ch\u2014ng\u0103n ch\u1eb7n [\u2026]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42,3,2,8],"tags":[126,114,63],"class_list":["post-1189","post","type-post","status-publish","format-standard","hentry","category-anti-settlement-manhole-cover","category-ductile-cast-iron-products","category-products","category-round-manhole-cover","tag-ductile-cast-iron","tag-luzhongbao","tag-manhole-cover"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>720\u00d7880\u00d7190 Ductile Cast Iron Anti-Settlement Manhole Cover - Ductile Cast Iron Anti-Settlement Manhole Cover - Hubei Luzhongbao Metal Products Co., Ltd<\/title>\n<meta name=\"description\" content=\"This 190mm-thick Ductile Cast Iron anti-settlement cover fundamentally reengineers load transfer paths. Its spigot-and-socket structure eliminates settlement failures, QT500-7 high-toughness material withstands heavy impacts, and a five-safeguard locking system delivers &quot;silent + theft-proof + safe&quot; triple protection. The integrated anti-fall sub-cover and RFID expandability represent the evolution toward &quot;intrinsic safety + smart O&amp;M.&quot; Whether confronting extreme traffic, corrosive environments, or smart-city demands, it is the optimal solution for long-term underground infrastructure service and public safety.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lzbmetal.com\/vi\/nap-ho-ga-chong-lun-bang-gang-deo-720x880x190\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"720\u00d7880\u00d7190 Ductile Cast Iron Anti-Settlement Manhole Cover - Ductile Cast Iron Anti-Settlement Manhole Cover - Hubei Luzhongbao Metal Products Co., Ltd\" \/>\n<meta property=\"og:description\" content=\"This 190mm-thick Ductile Cast Iron anti-settlement cover fundamentally reengineers load transfer paths. Its spigot-and-socket structure eliminates settlement failures, QT500-7 high-toughness material withstands heavy impacts, and a five-safeguard locking system delivers &quot;silent + theft-proof + safe&quot; triple protection. 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