{"id":1372,"date":"2025-11-05T15:48:00","date_gmt":"2025-11-05T15:48:00","guid":{"rendered":"https:\/\/lzbmetal.com\/?p=1372"},"modified":"2025-11-05T06:59:04","modified_gmt":"2025-11-05T06:59:04","slug":"luzhongbao-700x800x120-khung-ngoai-vuong-co-loi-tron-ben-trong-luoi-chong-roi","status":"publish","type":"post","link":"https:\/\/lzbmetal.com\/vi\/luzhongbao-700x800x120-khung-ngoai-vuong-co-loi-tron-ben-trong-luoi-chong-roi\/","title":{"rendered":"Khung ngo\u00e0i h\u00ecnh vu\u00f4ng 700x800x120 mm c\u1ee7a lzbmetal v\u1edbi l\u00f5i trong h\u00ecnh tr\u00f2n v\u00e0 l\u01b0\u1edbi ch\u1ed1ng r\u01a1i."},"content":{"rendered":"

N\u1eafp c\u1ed1ng lzbmetal khung ngo\u00e0i h\u00ecnh vu\u00f4ng 700\u00d7800\u00d7120mm v\u1edbi l\u00f5i trong h\u00ecnh tr\u00f2n, \u0111\u01b0\u1ee3c trang b\u1ecb l\u01b0\u1edbi ch\u1ed1ng r\u01a1i, l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 ch\u1ecbu t\u1ea3i n\u1eb7ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t cho c\u00e1c khu v\u1ef1c \u0111\u00f4 th\u1ecb hi\u1ec7n \u0111\u1ea1i v\u1edbi ti\u00eau chu\u1ea9n an to\u00e0n cao. S\u1ea3n ph\u1ea9m n\u00e0y \u0111\u01b0\u1ee3c \u0111\u00fac ch\u00ednh x\u00e1c b\u1eb1ng gang d\u1ebbo c\u01b0\u1eddng \u0111\u1ed9 cao c\u1ea5p QT500-7, tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t ti\u00eau chu\u1ea9n qu\u1ed1c gia GB\/T23858 v\u00e0 ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf EN124. C\u1ea5u tr\u00fac khung ngo\u00e0i h\u00ecnh vu\u00f4ng \u0111\u1ed9c \u0111\u00e1o v\u1edbi l\u00f5i trong h\u00ecnh tr\u00f2n (khung ngo\u00e0i h\u00ecnh ch\u1eef nh\u1eadt 700mm \u00d7 800mm, b\u00ean trong th\u00edch \u1ee9ng v\u1edbi mi\u1ec7ng c\u1ed1ng tr\u00f2n ti\u00eau chu\u1ea9n) \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u che ph\u1ee7 c\u1ee7a c\u00e1c c\u1ed1ng l\u1edbn \u0111\u1ed3ng th\u1eddi cung c\u1ea5p di\u1ec7n t\u00edch ph\u00e2n t\u00e1n t\u1ea3i tr\u1ecdng l\u1edbn h\u01a1n. Khung si\u00eau s\u00e2u 120mm, k\u1ebft h\u1ee3p v\u1edbi thi\u1ebft k\u1ebf m\u1eb7t b\u00edch m\u1edf r\u1ed9ng \u1edf \u0111\u00e1y, truy\u1ec1n tr\u1ef1c ti\u1ebfp t\u1ea3i tr\u1ecdng b\u00e1nh xe xu\u1ed1ng c\u00e1c l\u1edbp k\u1ebft c\u1ea5u m\u1eb7t \u0111\u01b0\u1eddng, gi\u1ea3i quy\u1ebft tri\u1ec7t \u0111\u1ec3 v\u1ea5n \u0111\u1ec1 l\u00fan nh\u1ef1a \u0111\u01b0\u1eddng xung quanh c\u1ed1ng t\u1eeb g\u00f3c \u0111\u1ed9 nguy\u00ean l\u00fd k\u1ebft c\u1ea5u. L\u01b0\u1edbi ch\u1ed1ng r\u01a1i b\u1eb1ng nylon c\u01b0\u1eddng \u0111\u1ed9 cao t\u00edch h\u1ee3p s\u1eb5n (kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i \u2265 1000 kg) cung c\u1ea5p kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 k\u00e9p, ng\u0103n ng\u1eeba c\u00e1c tr\u01b0\u1eddng h\u1ee3p ng\u01b0\u1eddi b\u1ecb ng\u00e3 ngo\u00e0i \u00fd mu\u1ed1n, \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng n\u01a1i c\u00f3 y\u00eau c\u1ea7u an to\u00e0n c\u00f4ng c\u1ed9ng c\u1ef1c k\u1ef3 cao nh\u01b0 khu\u00f4n vi\u00ean tr\u01b0\u1eddng h\u1ecdc, qu\u1ea3ng tr\u01b0\u1eddng v\u00e0 v\u1ec9a h\u00e8.<\/p>\n\n\n\n

So v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m th\u00f4ng th\u01b0\u1eddng, lzbmetal \u0111\u00e3 kh\u1eb3ng \u0111\u1ecbnh v\u1ecb th\u1ebf d\u1eabn \u0111\u1ea7u ng\u00e0nh th\u00f4ng qua nhi\u1ec1u \u01b0u \u0111i\u1ec3m: th\u1ee9 nh\u1ea5t, \u01b0u th\u1ebf v\u1ec1 khoa h\u1ecdc v\u1eadt li\u1ec7u, s\u1eed d\u1ee5ng gang d\u1ebbo QT500-7 v\u1edbi \u0111\u1ed9 b\u1ec1n k\u00e9o \u2265 500 MPa v\u00e0 \u0111\u1ed9 b\u1ec1n ch\u1ea3y \u2265 320 MPa, c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc v\u01b0\u1ee3t xa c\u00e1c lo\u1ea1i n\u1eafp gang th\u00f4ng th\u01b0\u1eddng; th\u1ee9 hai, \u01b0u th\u1ebf v\u1ec1 thi\u1ebft k\u1ebf k\u1ebft c\u1ea5u, khung ngo\u00e0i h\u00ecnh vu\u00f4ng c\u1ea3i ti\u1ebfn v\u1edbi c\u1ea5u tr\u00fac l\u00f5i trong h\u00ecnh tr\u00f2n v\u00e0 thi\u1ebft k\u1ebf khung s\u00e2u gi\u00fap ph\u00e2n t\u00e1n t\u1ea3i tr\u1ecdng v\u00e0 truy\u1ec1n t\u1ea3i th\u1eb3ng \u0111\u1ee9ng m\u1ed9t c\u00e1ch khoa h\u1ecdc; th\u1ee9 ba, \u01b0u th\u1ebf v\u1ec1 \u0111\u1ed9 ch\u00ednh x\u00e1c trong gia c\u00f4ng, khe h\u1edf gi\u1eefa n\u1eafp v\u00e0 khung \u2264 1 mm, v\u01b0\u1ee3t xa ti\u00eau chu\u1ea9n ng\u00e0nh \u2264 2 mm, \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh v\u00e0 kh\u00f4ng g\u00e2y ti\u1ebfng \u1ed3n sau khi l\u1eafp \u0111\u1eb7t; th\u1ee9 t\u01b0, \u01b0u th\u1ebf v\u1ec1 gi\u1ea3i ph\u00e1p to\u00e0n di\u1ec7n, cung c\u1ea5p h\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7 ho\u00e0n ch\u1ec9nh t\u1eeb ch\u1ed1ng r\u01a1i, ch\u1ed1ng tr\u1ed9m \u0111\u1ebfn ch\u1ed1ng l\u00fan. Nh\u1eefng \u01b0u \u0111i\u1ec3m n\u00e0y cho ph\u00e9p lzbmetal kh\u00f4ng ch\u1ec9 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u ch\u1ecbu t\u1ea3i c\u1ea5p D400 (400 kN) m\u00e0 c\u00f2n th\u00edch \u1ee9ng v\u1edbi m\u00f4i tr\u01b0\u1eddng \u0111\u00f4 th\u1ecb ph\u1ee9c t\u1ea1p v\u00e0 \u0111a d\u1ea1ng c\u1ee7a Trung Qu\u1ed1c, cung c\u1ea5p s\u1ef1 b\u1ea3o v\u1ec7 l\u00e2u d\u00e0i v\u00e0 \u0111\u00e1ng tin c\u1eady cho c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111\u00f4 th\u1ecb.<\/p>\n\n\n\n

Khung ngo\u00e0i vu\u00f4ng b\u1eb1ng gang v\u1edbi l\u00f5i trong h\u00ecnh tr\u00f2n, thi\u1ebft k\u1ebf \u0111\u1ed9c \u0111\u00e1o k\u1ebft h\u1ee3p \u01b0u \u0111i\u1ec3m c\u1ee7a khung ngo\u00e0i vu\u00f4ng v\u00e0 v\u1ecf tr\u00f2n, mang l\u1ea1i k\u1ebft c\u1ea5u ch\u1eafc ch\u1eafn v\u00e0 \u1ed5n \u0111\u1ecbnh h\u01a1n. S\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c nh\u01b0 \u0111\u01b0\u1eddng \u0111\u00f4 th\u1ecb, khu th\u01b0\u01a1ng m\u1ea1i v\u00e0 khu c\u00f4ng nghi\u1ec7p. Thi\u1ebft k\u1ebf n\u00e0y cho ph\u00e9p v\u1ecf ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p l\u1ef1c t\u1eeb m\u1ecdi h\u01b0\u1edbng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, \u0111\u1ed3ng th\u1eddi \u0111\u01a1n gi\u1ea3n h\u00f3a c\u00f4ng vi\u1ec7c l\u1eafp \u0111\u1eb7t v\u00e0 b\u1ea3o tr\u00ec, n\u00e2ng cao t\u00ednh \u1ee9ng d\u1ee5ng v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n

\u01afu \u0111i\u1ec3m c\u1ee7a Khung ngo\u00e0i vu\u00f4ng v\u1edbi Thi\u1ebft k\u1ebf l\u00f5i trong tr\u00f2n:<\/h3>\n\n\n\n

\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh khi l\u1eafp \u0111\u1eb7t \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n: Thi\u1ebft k\u1ebf b\u00ean ngo\u00e0i h\u00ecnh vu\u00f4ng gi\u00fap vi\u1ec7c \u0111\u1ecbnh v\u1ecb n\u1eafp d\u1ec5 d\u00e0ng h\u01a1n so v\u1edbi khung, tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng tr\u01b0\u1ee3t ho\u1eb7c \u0111\u1eb7t nh\u1ea7m v\u1ecb tr\u00ed th\u01b0\u1eddng g\u1eb7p \u1edf n\u1eafp h\u00ecnh tr\u00f2n, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a n\u1eafp.<\/p>\n\n\n\n

Kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n: Thi\u1ebft k\u1ebf n\u1eafp b\u00ean trong h\u00ecnh tr\u00f2n ph\u00e2n t\u00e1n hi\u1ec7u qu\u1ea3 t\u1ea3i tr\u1ecdng t\u1eeb c\u00e1c h\u01b0\u1edbng kh\u00e1c nhau, cho ph\u00e9p n\u1eafp gi\u1eef \u1ed5n \u0111\u1ecbnh d\u01b0\u1edbi t\u1ea3i tr\u1ecdng c\u01b0\u1eddng \u0111\u1ed9 cao, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p su\u1ea5t cao c\u1ea5p D400, \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a c\u00e1c khu v\u1ef1c ch\u1ecbu t\u1ea3i n\u1eb7ng.<\/p>\n\n\n\n

D\u1ec5 d\u00e0ng m\u1edf v\u00e0 b\u1ea3o tr\u00ec: Khung ngo\u00e0i vu\u00f4ng v\u1edbi thi\u1ebft k\u1ebf l\u00f5i b\u00ean trong tr\u00f2n kh\u00f4ng ch\u1ec9 \u0111\u01a1n gi\u1ea3n h\u00f3a qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t m\u00e0 c\u00f2n gi\u00fap n\u1eafp d\u1ec5 m\u1edf h\u01a1n, gi\u1ea3m b\u1edbt kh\u00f3 kh\u0103n trong vi\u1ec7c b\u1ea3o tr\u00ec v\u00e0 ki\u1ec3m tra.<\/p>\n\n\n\n

Gi\u1ea3m ti\u1ebfng \u1ed3n kh\u00f4ng c\u1ea7n thi\u1ebft: Nh\u1edd thi\u1ebft k\u1ebf v\u1eeba v\u1eb7n tuy\u1ec7t v\u1eddi c\u1ee7a khung ngo\u00e0i vu\u00f4ng v\u1edbi l\u00f5i trong tr\u00f2n, ma s\u00e1t gi\u1eefa n\u1eafp v\u00e0 khung \u0111\u01b0\u1ee3c gi\u1ea3m \u0111\u00e1ng k\u1ec3, tr\u00e1nh c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng nh\u01b0 n\u1ea3y v\u00e0 d\u1ecbch chuy\u1ec3n, do \u0111\u00f3 gi\u1ea3m \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n.<\/p>\n\n\n\n

Khung ngo\u00e0i vu\u00f4ng b\u1eb1ng gang v\u1edbi b\u1ec1 m\u1eb7t l\u00f5i b\u00ean trong h\u00ecnh tr\u00f2n \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1eb1ng s\u01a1n, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9 tuy\u1ec7t v\u1eddi, ch\u1ed1ng x\u00f3i m\u00f2n t\u1eeb m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt v\u00e0 \u0103n m\u00f2n, k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd s\u1eed d\u1ee5ng.<\/p>\n\n\n\n

Gi\u1ea3i th\u00edch chi ti\u1ebft v\u1ec1 c\u00e1c \u01b0u \u0111i\u1ec3m c\u1ed1t l\u00f5i c\u1ee7a s\u1ea3n ph\u1ea9m<\/h3>\n\n\n\n

1. Nhi\u1ec1u bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 v\u00e0 an to\u00e0n n\u1ed9i t\u1ea1i<\/h4>\n\n\n\n

\u0110\u1ea3m b\u1ea3o ph\u00f2ng ng\u1eeba t\u00e9 ng\u00e3: L\u01b0\u1edbi ch\u1ed1ng r\u01a1i c\u01b0\u1eddng \u0111\u1ed9 cao \u0111\u01b0\u1ee3c trang b\u1ecb ti\u00eau chu\u1ea9n b\u00ean d\u01b0\u1edbi n\u1eafp, s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p d\u00e2y nylon ch\u1ed1ng \u0103n m\u00f2n v\u00e0 m\u00f3c th\u00e9p kh\u00f4ng g\u1ec9. L\u01b0\u1edbi \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 d\u00e0y \u0111\u1eb7c, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i tr\u1ecdng t\u0129nh l\u00ean \u0111\u1ebfn h\u01a1n 1000 kg. Ngay c\u1ea3 khi n\u1eafp m\u1edf b\u1ea5t ng\u1edd, l\u01b0\u1edbi v\u1eabn c\u00f3 t\u00e1c d\u1ee5ng ch\u1eb7n t\u00e9 ng\u00e3 hi\u1ec7u qu\u1ea3, mang l\u1ea1i s\u1ef1 b\u1ea3o v\u1ec7 an to\u00e0n th\u1ee9 c\u1ea5p quan tr\u1ecdng cho ng\u01b0\u1eddi \u0111i b\u1ed9.<\/p>\n\n\n\n

Ch\u1ed1ng tr\u1ed9m v\u00e0 \u1ed5n \u0111\u1ecbnh: Thi\u1ebft k\u1ebf t\u00edch h\u1ee3p b\u1ea3n l\u1ec1 \u1ea9n k\u1ebft h\u1ee3p v\u1edbi kh\u00f3a ch\u1ed1ng tr\u1ed9m, kh\u00f4ng c\u00f3 ch\u1ed1t l\u1ed9 ra ngo\u00e0i, ng\u0103n ch\u1eb7n hi\u1ec7u qu\u1ea3 vi\u1ec7c m\u1edf c\u1eeda tr\u00e1i ph\u00e9p. \u0110\u1ed9 kh\u00edt ch\u00ednh x\u00e1c \u0111\u1ebfn t\u1eebng milimet gi\u1eefa t\u1ea5m che v\u00e0 khung gi\u00fap lo\u1ea1i b\u1ecf hi\u1ec7n t\u01b0\u1ee3ng n\u1ea3y, tr\u01b0\u1ee3t v\u00e0 ti\u1ebfng \u1ed3n b\u1ea5t th\u01b0\u1eddng trong qu\u00e1 tr\u00ecnh xe c\u1ed9 l\u01b0u th\u00f4ng, v\u1ec1 c\u01a1 b\u1ea3n lo\u1ea1i b\u1ecf c\u00e1c m\u1ed1i nguy hi\u1ec3m v\u1ec1 an to\u00e0n do n\u1eafp che b\u1ecb d\u1ecbch chuy\u1ec3n.<\/p>\n\n\n\n

Hi\u1ec7u su\u1ea5t ch\u1ed1ng l\u00fan: C\u1ed1t l\u00f5i c\u1ee7a kh\u1ea3 n\u0103ng ch\u1ed1ng l\u00fan n\u1eb1m \u1edf thi\u1ebft k\u1ebf khung g\u1ea7m \u0111\u01b0\u1ee3c l\u00e0m s\u00e2u th\u00eam 120mm v\u00e0 g\u1edd d\u01b0\u1edbi c\u1ef1c r\u1ed9ng (chi\u1ec1u r\u1ed9ng \u2265 200mm). C\u1ea5u tr\u00fac n\u00e0y cho ph\u00e9p \u00e1p l\u1ef1c b\u00e1nh xe \u0111\u01b0\u1ee3c ph\u00e2n t\u00e1n theo chi\u1ec1u d\u1ecdc qua th\u00e0nh khung xu\u1ed1ng n\u1ec1n \u0111\u01b0\u1eddng, b\u1ecf qua khu v\u1ef1c \u0111\u1ea5t \u0111\u1eafp d\u1ec5 b\u1ecb n\u00e9n ch\u1eb7t, do \u0111\u00f3 \u0111\u1ea3m b\u1ea3o l\u1edbp ph\u1ee7 v\u00e0 m\u1eb7t \u0111\u01b0\u1eddng lu\u00f4n b\u1eb1ng ph\u1eb3ng trong th\u1eddi gian d\u00e0i, \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau "kh\u00f4ng l\u00fan".<\/p>\n\n\n\n

2. Kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i v\u00e0 \u0111\u1ed9 b\u1ec1n v\u01b0\u1ee3t tr\u1ed9i<\/h4>\n\n\n\n

N\u1ec1n t\u1ea3ng ch\u1ecbu l\u1ef1c v\u01b0\u1ee3t tr\u1ed9i: Nh\u1edd v\u1eadt li\u1ec7u gang d\u1ebbo QT500-7 v\u00e0 c\u1ea5u tr\u00fac g\u00e2n gia c\u1ed1 h\u01b0\u1edbng t\u00e2m b\u00ean trong, l\u1edbp ph\u1ee7 n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu n\u00e9n, va \u0111\u1eadp v\u00e0 m\u1ecfi c\u1ef1c k\u1ef3 cao, d\u1ec5 d\u00e0ng \u0111\u1ea1t ch\u1ee9ng nh\u1eadn c\u1ea5p D400 (400 kN) v\u00e0 c\u00f3 th\u1ec3 t\u1ef1 tin x\u1eed l\u00fd c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t c\u00f3 l\u01b0u l\u01b0\u1ee3ng xe c\u1ed9 n\u1eb7ng th\u01b0\u1eddng xuy\u00ean.<\/p>\n\n\n\n

Ch\u1ed1ng \u0103n m\u00f2n v\u00e0 ch\u1ecbu th\u1eddi ti\u1ebft l\u00e2u d\u00e0i: B\u1ec1 m\u1eb7t s\u1ea3n ph\u1ea9m s\u1eed d\u1ee5ng l\u1edbp ph\u1ee7 composite ch\u1ed1ng \u0103n m\u00f2n ch\u1ecbu l\u1ef1c cao (th\u01b0\u1eddng l\u00e0 m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng + phun nh\u1ef1a \u0111\u01b0\u1eddng epoxy), v\u1edbi \u0111\u1ed9 d\u00e0y l\u1edbp k\u1ebdm \u2265 80\u03bcm v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu th\u1eed nghi\u1ec7m phun mu\u1ed1i v\u01b0\u1ee3t qu\u00e1 2000 gi\u1edd. S\u1ea3n ph\u1ea9m c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng x\u00f3i m\u00f2n hi\u1ec7u qu\u1ea3 t\u1eeb m\u01b0a axit \u0111\u00f4 th\u1ecb, ch\u1ea5t ph\u00e1 b\u0103ng v\u00e0 m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt d\u01b0\u1edbi l\u00f2ng \u0111\u1ea5t. Tu\u1ed5i th\u1ecd thi\u1ebft k\u1ebf c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 30 n\u0103m, v\u01b0\u1ee3t xa v\u00f2ng \u0111\u1eddi c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m th\u00f4ng th\u01b0\u1eddng tr\u00ean th\u1ecb tr\u01b0\u1eddng.<\/p>\n\n\n\n

3. S\u1ea3n xu\u1ea5t ch\u00ednh x\u00e1c v\u00e0 v\u1eadn h\u00e0nh & b\u1ea3o tr\u00ec th\u00f4ng minh<\/h4>\n\n\n\n

Quy tr\u00ecnh s\u1ea3n xu\u1ea5t ch\u00ednh x\u00e1c: D\u1ef1a tr\u00ean c\u00f4ng ngh\u1ec7 v\u00e0 ti\u00eau chu\u1ea9n ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 cung c\u1ea5p c\u00e1c linh ki\u1ec7n c\u1ed1t l\u00f5i cho c\u00e1c d\u1ef1 \u00e1n quy m\u00f4 l\u1edbn nh\u01b0 c\u1ea7u H\u1ed3ng K\u00f4ng-Chu H\u1ea3i-Macao v\u00e0 \u0111\u01b0\u1eddng li\u00ean k\u1ebft Th\u00e2m Quy\u1ebfn-Trung S\u01a1n, lzbmetal \u0111\u1ea3m b\u1ea3o dung sai k\u00edch th\u01b0\u1edbc v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c l\u1eafp r\u00e1p c\u1ee7a n\u1eafp \u0111\u1ea1t m\u1ee9c cao nh\u1ea5t trong ng\u00e0nh, mang l\u1ea1i s\u1ef1 th\u00edch \u1ee9ng ho\u00e0n h\u1ea3o v\u00e0 tr\u1ea3i nghi\u1ec7m s\u1eed d\u1ee5ng m\u01b0\u1ee3t m\u00e0, \u00eam \u00e1i.<\/p>\n\n\n\n

T\u00edch h\u1ee3p ch\u1ee9c n\u0103ng th\u00f4ng minh: S\u1ea3n ph\u1ea9m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c trang b\u1ecb th\u1ebb \u0111i\u1ec7n t\u1eed RFID ho\u1eb7c chip NFC t\u00f9y ch\u1ecdn, gi\u00fap qu\u1ea3n l\u00fd t\u00e0i s\u1ea3n k\u1ef9 thu\u1eadt s\u1ed1, nh\u1eadn d\u1ea1ng v\u00e0 truy xu\u1ea5t ngu\u1ed3n g\u1ed1c nhanh ch\u00f3ng cho c\u00e1c s\u1edf ban ng\u00e0nh th\u00e0nh ph\u1ed1. Ch\u1ee9c n\u0103ng n\u00e0y c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 hi\u1ec7u qu\u1ea3 ki\u1ec3m tra, b\u1ea3o tr\u00ec v\u00e0 qu\u1ea3n l\u00fd h\u00e0ng t\u1ed3n kho h\u00e0ng ng\u00e0y, ph\u00f9 h\u1ee3p v\u1edbi xu h\u01b0\u1edbng ph\u00e1t tri\u1ec3n c\u1ee7a th\u00e0nh ph\u1ed1 th\u00f4ng minh.<\/p>\n\n\n\n

N\u1eafp c\u1ed1ng lzbmetal 700\u00d7800\u00d7120 v\u1edbi l\u01b0\u1edbi ch\u1ed1ng r\u01a1i, nh\u1edd nh\u1eefng \u01b0u \u0111i\u1ec3m to\u00e0n di\u1ec7n v\u1ec1 v\u1eadt li\u1ec7u, c\u1ea5u tr\u00fac, k\u1ef9 thu\u1eadt ch\u1ebf t\u1ea1o v\u00e0 v\u1eadn h\u00e0nh, b\u1ea3o tr\u00ec th\u00f4ng minh, \u0111\u00e3 thi\u1ebft l\u1eadp m\u1ed9t chu\u1ea9n m\u1ef1c m\u1edbi cho an to\u00e0n c\u00f4ng c\u1ed9ng \u0111\u00f4 th\u1ecb. \u0110\u00e2y kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t b\u1ed9 ph\u1eadn ch\u1ee9c n\u0103ng m\u00e0 c\u00f2n l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p b\u1ea3o v\u1ec7 \u0111\u00e1ng tin c\u1eady, m\u1ed9t kho\u1ea3n \u0111\u1ea7u t\u01b0 quan tr\u1ecdng nh\u1eb1m n\u00e2ng cao kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu c\u1ee7a c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111\u00f4 th\u1ecb v\u00e0 c\u1ea3m gi\u00e1c an to\u00e0n cho ng\u01b0\u1eddi d\u00e2n.<\/p>","protected":false},"excerpt":{"rendered":"

N\u1eafp c\u1ed1ng lzbmetal khung ngo\u00e0i vu\u00f4ng 700\u00d7800\u00d7120mm v\u1edbi l\u00f5i trong h\u00ecnh tr\u00f2n, \u0111\u01b0\u1ee3c trang b\u1ecb l\u01b0\u1edbi ch\u1ed1ng r\u01a1i, l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 ch\u1ecbu t\u1ea3i n\u1eb7ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t cho c\u00e1c khu v\u1ef1c \u0111\u00f4 th\u1ecb hi\u1ec7n \u0111\u1ea1i v\u1edbi ti\u00eau chu\u1ea9n an to\u00e0n cao. S\u1ea3n ph\u1ea9m n\u00e0y \u0111\u01b0\u1ee3c \u0111\u00fac ch\u00ednh x\u00e1c b\u1eb1ng gang d\u1ebbo c\u01b0\u1eddng \u0111\u1ed9 cao c\u1ea5p QT500-7, tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t ti\u00eau chu\u1ea9n qu\u1ed1c gia GB\/T23858 v\u00e0 ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf EN124. [\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":[114,63],"class_list":["post-1372","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-luzhongbao","tag-manhole-cover"],"yoast_head":"\nLuzhongbao 700x800x120 Square Outer Frame with Circular Inner Core & Anti-Falling Net - Outside Square Inside Round Manhole Cover - Hubei Luzhongbao Metal Products Co., Ltd<\/title>\n<meta name=\"description\" content=\"The Luzhongbao 700\u00d7800\u00d7120 square outer frame with circular inner core manhole cover, equipped with an anti-falling net, is a heavy-duty protective facility specifically designed for modern urban areas with high safety standards. This product is precision-cast using QT500-7 grade high-strength ductile iron, strictly adhering to the GB\/T23858 national standard and the EN124 international standard. Its unique square outer frame with circular inner core structure (external 700mm \u00d7 800mm rectangular frame, internally adapting to a standard circular manhole opening) meets the coverage requirements of large manholes while providing a larger load dispersion area. The 120mm ultra-deep frame, combined with a bottom extended flange design, directly transmits wheel loads to the road structural layers, fundamentally addressing the industry-wide issue of asphalt settlement around the manhole from a structural principle perspective. The built-in high-strength nylon anti-falling net (load-bearing capacity \u2265 1000 kg) provides double protection, preventing accidental human falls, making it particularly suitable for places with extremely high public safety requirements such as school campuses, plazas, and sidewalks.\" \/>\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\/luzhongbao-700x800x120-khung-ngoai-vuong-co-loi-tron-ben-trong-luoi-chong-roi\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Luzhongbao 700x800x120 Square Outer Frame with Circular Inner Core & Anti-Falling Net - Outside Square Inside Round Manhole Cover - Hubei Luzhongbao Metal Products Co., Ltd\" \/>\n<meta property=\"og:description\" content=\"The Luzhongbao 700\u00d7800\u00d7120 square outer frame with circular inner core manhole cover, equipped with an anti-falling net, is a heavy-duty protective facility specifically designed for modern urban areas with high safety standards. This product is precision-cast using QT500-7 grade high-strength ductile iron, strictly adhering to the GB\/T23858 national standard and the EN124 international standard. Its unique square outer frame with circular inner core structure (external 700mm \u00d7 800mm rectangular frame, internally adapting to a standard circular manhole opening) meets the coverage requirements of large manholes while providing a larger load dispersion area. The 120mm ultra-deep frame, combined with a bottom extended flange design, directly transmits wheel loads to the road structural layers, fundamentally addressing the industry-wide issue of asphalt settlement around the manhole from a structural principle perspective. The built-in high-strength nylon anti-falling net (load-bearing capacity \u2265 1000 kg) provides double protection, preventing accidental human falls, making it particularly suitable for places with extremely high public safety requirements such as school campuses, plazas, and sidewalks.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lzbmetal.com\/vi\/luzhongbao-700x800x120-khung-ngoai-vuong-co-loi-tron-ben-trong-luoi-chong-roi\/\" \/>\n<meta property=\"og:site_name\" content=\"LZBMetal Products Co., Ltd\" \/>\n<meta property=\"article:published_time\" content=\"2025-11-05T15:48:00+00:00\" \/>\n<meta name=\"author\" content=\"luzhongbao\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@Levi_Luzhongbao\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"luzhongbao\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/lzbmetal.com\\\/luzhongbao-700x800x120-square-outer-frame-with-circular-inner-core-anti-falling-net\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/lzbmetal.com\\\/luzhongbao-700x800x120-square-outer-frame-with-circular-inner-core-anti-falling-net\\\/\"},\"author\":{\"name\":\"luzhongbao\",\"@id\":\"https:\\\/\\\/lzbmetal.com\\\/#\\\/schema\\\/person\\\/03225aba1019488054ecea53728c5cf0\"},\"headline\":\"lzbmetal 700x800x120 Square Outer Frame with Circular Inner Core & Anti-Falling Net\",\"datePublished\":\"2025-11-05T15:48:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/lzbmetal.com\\\/luzhongbao-700x800x120-square-outer-frame-with-circular-inner-core-anti-falling-net\\\/\"},\"wordCount\":1027,\"commentCount\":0,\"keywords\":[\"Luzhongbao\",\"Manhole Cover\"],\"articleSection\":[\"Ductile Cast Iron Products\",\"Outside Square Inside Round Manhole Cover\",\"Products\",\"Square Manhole Cover\"],\"inLanguage\":\"vi\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/lzbmetal.com\\\/luzhongbao-700x800x120-square-outer-frame-with-circular-inner-core-anti-falling-net\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/lzbmetal.com\\\/luzhongbao-700x800x120-square-outer-frame-with-circular-inner-core-anti-falling-net\\\/\",\"url\":\"https:\\\/\\\/lzbmetal.com\\\/luzhongbao-700x800x120-square-outer-frame-with-circular-inner-core-anti-falling-net\\\/\",\"name\":\"Luzhongbao 700x800x120 Square Outer Frame with Circular Inner Core & Anti-Falling Net - Outside Square Inside Round Manhole Cover - Hubei Luzhongbao Metal Products Co., Ltd\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/lzbmetal.com\\\/#website\"},\"datePublished\":\"2025-11-05T15:48:00+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/lzbmetal.com\\\/#\\\/schema\\\/person\\\/03225aba1019488054ecea53728c5cf0\"},\"description\":\"The Luzhongbao 700\u00d7800\u00d7120 square outer frame with circular inner core manhole cover, equipped with an anti-falling net, is a heavy-duty protective facility specifically designed for modern urban areas with high safety standards. 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S\u1ea3n ph\u1ea9m n\u00e0y \u0111\u01b0\u1ee3c \u0111\u00fac ch\u00ednh x\u00e1c b\u1eb1ng gang d\u1ebbo c\u01b0\u1eddng \u0111\u1ed9 cao c\u1ea5p QT500-7, tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t ti\u00eau chu\u1ea9n qu\u1ed1c gia GB\/T23858 v\u00e0 ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf EN124. Khung ngo\u00e0i vu\u00f4ng \u0111\u1ed9c \u0111\u00e1o v\u1edbi c\u1ea5u tr\u00fac l\u00f5i tr\u00f2n b\u00ean trong (khung h\u00ecnh ch\u1eef nh\u1eadt b\u00ean ngo\u00e0i 700mm \u00d7 800mm, b\u00ean trong th\u00edch \u1ee9ng v\u1edbi l\u1ed7 h\u1ed1 ga tr\u00f2n ti\u00eau chu\u1ea9n) \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u che ph\u1ee7 c\u1ee7a c\u00e1c h\u1ed1 ga l\u1edbn \u0111\u1ed3ng th\u1eddi cung c\u1ea5p di\u1ec7n t\u00edch ph\u00e2n t\u00e1n t\u1ea3i tr\u1ecdng l\u1edbn h\u01a1n. Khung si\u00eau s\u00e2u 120mm, k\u1ebft h\u1ee3p v\u1edbi thi\u1ebft k\u1ebf v\u00e0nh \u0111ai m\u1edf r\u1ed9ng ph\u00eda d\u01b0\u1edbi, truy\u1ec1n tr\u1ef1c ti\u1ebfp t\u1ea3i tr\u1ecdng b\u00e1nh xe \u0111\u1ebfn c\u00e1c l\u1edbp k\u1ebft c\u1ea5u \u0111\u01b0\u1eddng, gi\u1ea3i quy\u1ebft c\u01a1 b\u1ea3n v\u1ea5n \u0111\u1ec1 l\u00fan nh\u1ef1a \u0111\u01b0\u1eddng tr\u00ean to\u00e0n ng\u00e0nh xung quanh h\u1ed1 ga t\u1eeb g\u00f3c \u0111\u1ed9 nguy\u00ean l\u00fd k\u1ebft c\u1ea5u. L\u01b0\u1edbi ch\u1ed1ng r\u01a1i b\u1eb1ng nylon c\u01b0\u1eddng \u0111\u1ed9 cao t\u00edch h\u1ee3p s\u1eb5n (kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i \u2265 1000 kg) mang l\u1ea1i kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 k\u00e9p, ng\u0103n ng\u1eeba tr\u01b0\u1eddng h\u1ee3p con ng\u01b0\u1eddi v\u00f4 t\u00ecnh b\u1ecb ng\u00e3, \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng n\u01a1i c\u00f3 y\u00eau c\u1ea7u an to\u00e0n c\u00f4ng c\u1ed9ng c\u1ef1c k\u1ef3 cao nh\u01b0 khu\u00f4n vi\u00ean tr\u01b0\u1eddng h\u1ecdc, qu\u1ea3ng tr\u01b0\u1eddng v\u00e0 v\u1ec9a h\u00e8.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/lzbmetal.com\/vi\/luzhongbao-700x800x120-khung-ngoai-vuong-co-loi-tron-ben-trong-luoi-chong-roi\/","og_locale":"vi_VN","og_type":"article","og_title":"Luzhongbao 700x800x120 Square Outer Frame with Circular Inner Core & Anti-Falling Net - Outside Square Inside Round Manhole Cover - Hubei Luzhongbao Metal Products Co., Ltd","og_description":"The Luzhongbao 700\u00d7800\u00d7120 square outer frame with circular inner core manhole cover, equipped with an anti-falling net, is a heavy-duty protective facility specifically designed for modern urban areas with high safety standards. This product is precision-cast using QT500-7 grade high-strength ductile iron, strictly adhering to the GB\/T23858 national standard and the EN124 international standard. Its unique square outer frame with circular inner core structure (external 700mm \u00d7 800mm rectangular frame, internally adapting to a standard circular manhole opening) meets the coverage requirements of large manholes while providing a larger load dispersion area. The 120mm ultra-deep frame, combined with a bottom extended flange design, directly transmits wheel loads to the road structural layers, fundamentally addressing the industry-wide issue of asphalt settlement around the manhole from a structural principle perspective. 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