{"id":1793,"date":"2026-06-03T10:44:00","date_gmt":"2026-06-03T10:44:00","guid":{"rendered":"https:\/\/lzbmetal.com\/?p=1793"},"modified":"2026-06-03T05:51:37","modified_gmt":"2026-06-03T05:51:37","slug":"gang-deo-so-voi-vat-lieu-composite-cuoc-tranh-luan-ve-vat-lieu-nap-cong-loai-nao-se-tro-thanh-xu-huong-chu-dao-trong-tuong-lai","status":"publish","type":"post","link":"https:\/\/lzbmetal.com\/vi\/gang-deo-so-voi-vat-lieu-composite-cuoc-tranh-luan-ve-vat-lieu-nap-cong-loai-nao-se-tro-thanh-xu-huong-chu-dao-trong-tuong-lai\/","title":{"rendered":"Gang d\u1ebbo so v\u1edbi v\u1eadt li\u1ec7u composite: Cu\u1ed9c tranh lu\u1eadn v\u1ec1 v\u1eadt li\u1ec7u n\u1eafp c\u1ed1ng \u2014 Lo\u1ea1i n\u00e0o s\u1ebd tr\u1edf th\u00e0nh xu h\u01b0\u1edbng ch\u1ee7 \u0111\u1ea1o trong t\u01b0\u01a1ng lai?"},"content":{"rendered":"<p>Trong qu\u00e1 tr\u00ecnh l\u1ef1a ch\u1ecdn n\u1eafp c\u1ed1ng \u0111\u00f4 th\u1ecb, c\u00e1c nh\u00e0 qu\u1ea3n l\u00fd mua s\u1eafm v\u00e0 thi\u1ebft k\u1ebf th\u01b0\u1eddng ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi m\u1ed9t c\u00e2u h\u1ecfi c\u1ed1t l\u00f5i: N\u00ean ch\u1ecdn n\u1eafp c\u1ed1ng gang d\u1ebbo hay n\u1eafp c\u1ed1ng composite? C\u1ea3 hai \u0111\u1ec1u c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m ri\u00eang. Ch\u00eca kh\u00f3a \u0111\u1ec3 l\u1ef1a ch\u1ecdn n\u1eb1m \u1edf vi\u1ec7c s\u1eed d\u1ee5ng ch\u00fang \u1edf \u0111\u00fang v\u1ecb tr\u00ed.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/lzbmetal.com\/wp-content\/uploads\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20250409091421-1024x768.jpg\" alt=\"\" class=\"wp-image-1794\" srcset=\"https:\/\/lzbmetal.com\/wp-content\/uploads\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20250409091421-1024x768.jpg 1024w, https:\/\/lzbmetal.com\/wp-content\/uploads\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20250409091421-300x225.jpg 300w, https:\/\/lzbmetal.com\/wp-content\/uploads\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20250409091421-768x576.jpg 768w, https:\/\/lzbmetal.com\/wp-content\/uploads\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20250409091421-1536x1152.jpg 1536w, https:\/\/lzbmetal.com\/wp-content\/uploads\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20250409091421-16x12.jpg 16w, https:\/\/lzbmetal.com\/wp-content\/uploads\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20250409091421.jpg 1706w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">N\u1eafp c\u1ed1ng gang d\u1ebbo: \u201cVua\u201d c\u1ee7a c\u00e1c t\u00ecnh hu\u1ed1ng ch\u1ecbu t\u1ea3i n\u1eb7ng<\/h3>\n\n\n\n<p>N\u1eafp c\u1ed1ng gang d\u1ebbo s\u1eed d\u1ee5ng gang d\u1ebbo l\u00e0m nguy\u00ean li\u1ec7u th\u00f4, \u0111\u01b0\u1ee3c r\u00f3t v\u00e0 t\u1ea1o h\u00ecnh sau khi n\u1ea5u ch\u1ea3y \u1edf nhi\u1ec7t \u0111\u1ed9 cao. Th\u00f4ng qua qu\u00e1 tr\u00ecnh c\u1ea7u h\u00f3a v\u00e0 x\u1eed l\u00fd c\u1ea5y m\u1ea7m, graphit trong gang d\u1ebbo \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed1 \u1edf d\u1ea1ng h\u00ecnh c\u1ea7u, gi\u00fap t\u0103ng c\u01b0\u1eddng \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 d\u1ebbo v\u00e0 \u0111\u1ed9 dai c\u1ee7a v\u1eadt li\u1ec7u, v\u1edbi c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc g\u1ea7n b\u1eb1ng th\u00e9p.<\/p>\n\n\n\n<p>\u01afu \u0111i\u1ec3m: Kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i c\u1ef1c m\u1ea1nh \u2014 c\u00e1c lo\u1ea1i n\u1eafp c\u1ed1ng ch\u1ecbu t\u1ea3i n\u1eb7ng c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p l\u1ef1c h\u01a1n 40 t\u1ea5n, v\u1edbi n\u1eafp c\u1ed1ng lo\u1ea1i D400 ch\u1ecbu \u0111\u01b0\u1ee3c 40 t\u1ea5n v\u00e0 lo\u1ea1i E600 ch\u1ecbu \u0111\u01b0\u1ee3c h\u01a1n 60 t\u1ea5n. Th\u00edch h\u1ee3p cho c\u00e1c khu v\u1ef1c ch\u1ecbu t\u1ea3i n\u1eb7ng nh\u01b0 \u0111\u01b0\u1eddng tr\u1ee5c ch\u00ednh \u0111\u00f4 th\u1ecb, \u0111\u01b0\u1eddng cao t\u1ed1c v\u00e0 \u0111\u01b0\u1eddng b\u0103ng s\u00e2n bay.<\/p>\n\n\n\n<p>Nh\u01b0\u1ee3c \u0111i\u1ec3m: Tr\u1ecdng l\u01b0\u1ee3ng n\u1eb7ng (v\u00ed d\u1ee5, n\u1eafp \u0111\u01b0\u1eddng k\u00ednh 700mm n\u1eb7ng kho\u1ea3ng 60kg), d\u1eabn \u0111\u1ebfn chi ph\u00ed v\u1eadn chuy\u1ec3n v\u00e0 l\u1eafp \u0111\u1eb7t cao h\u01a1n; h\u00e0m l\u01b0\u1ee3ng s\u1eaft cao khi\u1ebfn ch\u00fang d\u1ec5 b\u1ecb tr\u1ed9m c\u1eafp, c\u1ea7n th\u00eam kh\u00f3a ch\u1ed1ng tr\u1ed9m.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">N\u1eafp c\u1ed1ng composite: L\u1ef1a ch\u1ecdn \u201cm\u1edbi \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng\u201d cho khu v\u1ef1c t\u1ea3i tr\u1ecdng nh\u1eb9<\/h3>\n\n\n\n<p>N\u1eafp c\u1ed1ng composite s\u1eed d\u1ee5ng nh\u1ef1a l\u00e0m v\u1eadt li\u1ec7u n\u1ec1n v\u00e0 s\u1ee3i th\u1ee7y tinh l\u00e0m v\u1eadt li\u1ec7u gia c\u01b0\u1eddng, \u0111\u01b0\u1ee3c t\u1ea1o h\u00ecnh th\u00f4ng qua quy tr\u00ecnh \u0111\u00fac khu\u00f4n.<\/p>\n\n\n\n<p>\u01afu \u0111i\u1ec3m: Tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9 (ch\u1ec9 b\u1eb1ng 1\/3 \u0111\u1ebfn 1\/2 so v\u1edbi n\u1eafp s\u1eaft), thu\u1eadn ti\u1ec7n cho v\u1eadn chuy\u1ec3n v\u00e0 l\u1eafp \u0111\u1eb7t, gi\u1ea3m \u0111\u00e1ng k\u1ec3 c\u01b0\u1eddng \u0111\u1ed9 lao \u0111\u1ed9ng; kh\u00f4ng c\u00f3 gi\u00e1 tr\u1ecb t\u00e1i ch\u1ebf, ch\u1ed1ng tr\u1ed9m t\u1ef1 nhi\u00ean; kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao, ch\u1ed1ng axit-ki\u1ec1m, ch\u1ed1ng l\u00e3o h\u00f3a, b\u1ec1 m\u1eb7t c\u00f3 nhi\u1ec1u m\u00e0u s\u1eafc gi\u00fap d\u1ec5 d\u00e0ng nh\u1eadn bi\u1ebft c\u00e1c lo\u1ea1i \u1ed1ng.<\/p>\n\n\n\n<p>Nh\u01b0\u1ee3c \u0111i\u1ec3m: Kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p, ch\u1ee7 y\u1ebfu d\u01b0\u1edbi c\u1ea5p B125 (ch\u1ecbu t\u1ea3i 12,5 t\u1ea5n), ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c tr\u01b0\u1eddng h\u1ee3p t\u1ea3i nh\u1eb9 nh\u01b0 v\u1ec9a h\u00e8 v\u00e0 kh\u00f4ng gian xanh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 c\u00f4ng ngh\u1ec7: V\u1eadt li\u1ec7u composite d\u1ea1ng t\u1ea5m ph\u1ee7 s\u1eed d\u1ee5ng quy tr\u00ecnh SMC c\u1ee7a LZB Metal v\u01b0\u1ee3t qua m\u1ecdi gi\u1edbi h\u1ea1n.<\/h3>\n\n\n\n<p>\u0110i\u1ec1u \u0111\u00e1ng nh\u1ea5n m\u1ea1nh l\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a n\u1eafp c\u1ed1ng composite kh\u00f4ng ch\u1ec9 gi\u1edbi h\u1ea1n \u1edf t\u1ea3i tr\u1ecdng nh\u1eb9. Hubei Luzhongbao (LZB Metal) s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 SMC \u0111\u1ec3 s\u1ea3n xu\u1ea5t n\u1eafp c\u1ed1ng composite \u0111\u00e1p \u1ee9ng ho\u00e0n h\u1ea3o ho\u1eb7c th\u1eadm ch\u00ed v\u01b0\u1ee3t ti\u00eau chu\u1ea9n t\u1ea3i tr\u1ecdng E600, \u0111\u1ee7 cho c\u00e1c tr\u01b0\u1eddng h\u1ee3p t\u1ea3i tr\u1ecdng c\u1ef1c cao nh\u01b0 nh\u00e0 ga v\u1eadn chuy\u1ec3n h\u00e0ng h\u00f3a, b\u1ebfn c\u1ea3ng v\u00e0 \u0111\u01b0\u1eddng b\u0103ng s\u00e2n bay. B\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 c\u00f4ng ngh\u1ec7 n\u00e0y \u0111ang thay \u0111\u1ed5i quan ni\u1ec7m c\u1ed1 h\u1eefu c\u1ee7a th\u1ecb tr\u01b0\u1eddng r\u1eb1ng n\u1eafp c\u1ed1ng composite \u201cch\u1ec9 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng cho t\u1ea3i tr\u1ecdng nh\u1eb9\u201d.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">K\u1ebft lu\u1eadn: Kh\u00f4ng c\u00f3 &quot;t\u1ed1t nh\u1ea5t&quot;, ch\u1ec9 c\u00f3 &quot;ph\u00f9 h\u1ee3p nh\u1ea5t&quot;.<\/h2>\n\n\n\n<p>Kh\u00f4ng c\u00f3 m\u1ed9t \u201cc\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang\u201d duy nh\u1ea5t n\u00e0o cho vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u n\u1eafp c\u1ed1ng \u0111\u00f4 th\u1ecb. N\u1eafp c\u1ed1ng gang d\u1ebbo c\u00f3 \u01b0u \u0111i\u1ec3m kh\u00f4ng th\u1ec3 thay th\u1ebf trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p t\u1ea3i tr\u1ecdng n\u1eb7ng, trong khi n\u1eafp c\u1ed1ng composite l\u1ea1i v\u01b0\u1ee3t tr\u1ed9i trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p t\u1ea3i tr\u1ecdng nh\u1eb9, ch\u1ed1ng \u0103n m\u00f2n, ch\u1ed1ng tr\u1ed9m v\u00e0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p kh\u00e1c. Tuy nhi\u00ean, s\u1ef1 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng c\u1ee7a c\u00f4ng ngh\u1ec7 n\u1eafp c\u1ed1ng composite hi\u1ec7u su\u1ea5t cao (nh\u01b0 quy tr\u00ecnh SMC) \u0111ang li\u00ean t\u1ee5c m\u1edf r\u1ed9ng ph\u1ea1m vi \u1ee9ng d\u1ee5ng c\u1ee7a v\u1eadt li\u1ec7u composite. Khi l\u1ef1a ch\u1ecdn, ng\u01b0\u1eddi qu\u1ea3n l\u00fd mua s\u1eafm n\u00ean t\u1eadp trung v\u00e0o vi\u1ec7c \u0111\u00e1nh gi\u00e1 c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 t\u1ea3i tr\u1ecdng giao th\u00f4ng t\u1ea1i v\u1ecb tr\u00ed l\u1eafp \u0111\u1eb7t, y\u00eau c\u1ea7u ch\u1ed1ng tr\u1ed9m, m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n v\u00e0 kh\u1ea3 n\u0103ng b\u1ea3o tr\u00ec, \u0111\u1ec3 \u0111\u01b0a ra l\u1ef1a ch\u1ecdn khoa h\u1ecdc v\u00e0 ch\u00ednh x\u00e1c. Sau c\u00f9ng, b\u1ea5t k\u1ec3 v\u1eadt li\u1ec7u n\u00e0o, \u0111\u1ea3m b\u1ea3o \u201cs\u1ef1 an to\u00e0n d\u01b0\u1edbi ch\u00e2n\u201d c\u1ee7a th\u00e0nh ph\u1ed1 l\u00e0 nhi\u1ec7m v\u1ee5 t\u1ed1i th\u01b0\u1ee3ng c\u1ee7a s\u1ea3n ph\u1ea9m n\u1eafp c\u1ed1ng.<\/p>","protected":false},"excerpt":{"rendered":"<p>Trong qu\u00e1 tr\u00ecnh l\u1ef1a ch\u1ecdn n\u1eafp c\u1ed1ng \u0111\u00f4 th\u1ecb, c\u00e1c nh\u00e0 qu\u1ea3n l\u00fd mua s\u1eafm v\u00e0 thi\u1ebft k\u1ebf th\u01b0\u1eddng ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi m\u1ed9t c\u00e2u h\u1ecfi c\u1ed1t l\u00f5i: N\u00ean ch\u1ecdn n\u1eafp c\u1ed1ng gang d\u1ebbo hay n\u1eafp c\u1ed1ng composite? C\u1ea3 hai \u0111\u1ec1u c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m ri\u00eang. Ch\u00eca kh\u00f3a \u0111\u1ec3 l\u1ef1a ch\u1ecdn n\u1eb1m \u1edf vi\u1ec7c s\u1eed d\u1ee5ng ch\u00fang \u1edf \u0111\u00fang v\u1ecb tr\u00ed. N\u1eafp c\u1ed1ng gang d\u1ebbo: \u201cVua\u201d c\u1ee7a [\u2026]<\/p>","protected":false},"author":2,"featured_media":1794,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[126,153,63],"class_list":["post-1793","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-ductile-cast-iron","tag-lzb-metal","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>Ductile\u00a0Iron\u00a0vs.\u00a0Composite\u00a0Materials:\u00a0The\u00a0Manhole\u00a0Cover\u00a0Material\u00a0Debate\u00a0\u2014\u00a0Which\u00a0Will\u00a0Become\u00a0the\u00a0Future\u00a0Mainstream? News - LZBMetal Products Co., Ltd<\/title>\n<meta name=\"description\" content=\"During urban manhole cover selection, procurement managers and designers often face a core question: Ductile iron manhole covers or composite manhole covers \u2014 which one should be chosen? Both have their respective advantages and disadvantages. 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