{"id":635,"date":"2025-05-30T06:09:54","date_gmt":"2025-05-30T06:09:54","guid":{"rendered":"https:\/\/lzbmetal.com\/?p=635"},"modified":"2025-06-23T01:26:56","modified_gmt":"2025-06-23T01:26:56","slug":"nap-ho-ga-hinh-tron","status":"publish","type":"post","link":"https:\/\/lzbmetal.com\/vi\/nap-ho-ga-hinh-tron\/","title":{"rendered":"L\u01b0\u1edbi tho\u00e1t n\u01b0\u1edbc tr\u00f2n b\u1eb1ng gang d\u1ebbo"},"content":{"rendered":"<h2 class=\"wp-block-heading has-luminous-vivid-orange-color has-text-color has-link-color wp-elements-c801cc7d14afba22f5ab0d1ea250bbe3\">T\u1ea1i sao n\u00ean ch\u1ecdn l\u01b0\u1edbi s\u1eaft d\u1ebbo c\u1ee7a ch\u00fang t\u00f4i? &nbsp;<\/h2>\n\n\n\n<p>&quot;Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 gang \u0111\u1ec1u l\u00e0 gang d\u1ebbo!&quot; &nbsp;<\/p>\n\n\n\n<p>So v\u1edbi l\u01b0\u1edbi s\u1eaft x\u00e1m gi\u00f2n ho\u1eb7c l\u01b0\u1edbi nh\u1ef1a composite d\u1ec5 b\u1ecb l\u00e3o h\u00f3a, l\u01b0\u1edbi s\u1eaft d\u1ebbo QT500-7 mang \u0111\u1ebfn b\u01b0\u1edbc ti\u1ebfn v\u01b0\u1ee3t b\u1eadc v\u1ec1 c\u01b0\u1eddng \u0111\u1ed9 n\u00e9n, kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp v\u00e0 \u0111\u1ed9 b\u1ec1n - v\u1edbi chi ph\u00ed v\u00f2ng \u0111\u1eddi th\u1ea5p h\u01a1n 40% - nh\u1edd \u0111\u1ed9 b\u1ec1n v\u00e0 t\u00ednh linh ho\u1ea1t c\u00e2n b\u1eb1ng. &nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">I. T\u00ednh n\u0103ng k\u1ef9 thu\u1eadt &nbsp;<\/h3>\n\n\n\n<p><strong>1. V\u1eadt li\u1ec7u &amp; Quy tr\u00ecnh <\/strong>\u00a0<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;- N\u1ec1n gang d\u1ebbo: &nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Qu\u00e1 tr\u00ecnh c\u1ea7u h\u00f3a magi\u00ea\/\u0111\u1ea5t hi\u1ebfm \u0111\u1ea3m b\u1ea3o ph\u00e2n b\u1ed1 than ch\u00ec d\u1ea1ng c\u1ea7u. \u00a0<\/li>\n\n\n\n<li>\u0110\u1ed9 b\u1ec1n k\u00e9o \u2265420 MPa, \u0111\u1ed9 gi\u00e3n d\u00e0i \u226510%, \u0111\u1ed9 b\u1ec1n va \u0111\u1eadp \u226512 J\/cm\u00b2 (v\u01b0\u1ee3t xa gang x\u00e1m). <\/li>\n\n\n\n<li>M\u1eadt \u0111\u1ed9: 7,3 g\/cm\u00b3 (kh\u00f4ng th\u1ec3 t\u00e1i ch\u1ebf, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng tr\u1ed9m). \u00a0<\/li>\n<\/ul>\n\n\n\n<p><strong>Quy tr\u00ecnh ch\u1ed1ng \u0103n m\u00f2n: \u00a0<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B\u1ea3o v\u1ec7 ba l\u1edbp: Phun k\u1ebdm (\u226580 \u03bcm) + ph\u1ee7 nh\u1ef1a \u0111\u01b0\u1eddng + b\u1ecbt k\u00edn l\u1ed7 r\u1ed7ng b\u1eb1ng epoxy. \u00a0<\/li>\n\n\n\n<li>Kh\u1ea3 n\u0103ng ch\u1ed1ng phun mu\u1ed1i \u22652.000 gi\u1edd (ASTM B117), kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch pH 4\u201312. \u00a0<\/li>\n<\/ul>\n\n\n\n<p><strong>2. Thi\u1ebft k\u1ebf k\u1ebft c\u1ea5u th\u1ee7y \u0111\u1ed9ng l\u1ef1c h\u1ecdc \u00a0<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Thanh ch\u1eafn d\u1ea1ng xo\u00e1y: C\u00e1c thanh cong \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo h\u01b0\u1edbng xuy\u00ean t\u00e2m (kho\u1ea3ng c\u00e1ch \u226415 mm) t\u1eadp trung d\u00f2ng n\u01b0\u1edbc v\u1ec1 ph\u00eda t\u00e2m, t\u0103ng hi\u1ec7u qu\u1ea3 tho\u00e1t n\u01b0\u1edbc l\u00ean 40% (l\u01b0u l\u01b0\u1ee3ng \u226545 L\/s\u00b7m\u00b2). \u00a0<\/li>\n\n\n\n<li>T\u1ed1i \u01b0u h\u00f3a ch\u1ed1ng t\u1eafc ngh\u1ebdn: Kho\u1ea3ng c\u00e1ch khe c\u1eafm d\u1ea7n d\u1ea7n (c\u00e1c c\u1ea1nh 8 mm \u2192 t\u00e2m 15 mm) gi\u00fap gi\u1eef l\u1ea1i c\u00e1c m\u1ea3nh v\u1ee5n l\u1edbn \u0111\u1ed3ng th\u1eddi gi\u1ea3m thi\u1ec3u t\u1eafc ngh\u1ebdn. \u00a0<\/li>\n\n\n\n<li>\u0110\u1ed9 d\u1ed1c t\u1ef1 l\u00e0m s\u1ea1ch: B\u1ec1 m\u1eb7t nghi\u00eang nh\u1ecf (0,5\u00b0\u20131\u00b0) cho ph\u00e9p n\u01b0\u1edbc m\u01b0a cu\u1ed1n tr\u00f4i b\u00f9n, k\u00e9o d\u00e0i th\u1eddi gian b\u1ea3o tr\u00ec th\u00eam 50%. \u00a0<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">II. \u01afu \u0111i\u1ec3m c\u1ed1t l\u00f5i &amp; \u0110i\u1ec3m n\u1ed5i b\u1eadt &nbsp;<\/h3>\n\n\n\n<p>\u2460 Kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i v\u00e0 an to\u00e0n c\u1ef1c m\u1ea1nh &nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u1eadt li\u1ec7u: Gang d\u1ebbo QT500-7, \u0111\u1ed9 b\u1ec1n k\u00e9o \u2265500 MPa, \u0111\u1ed9 gi\u00e3n d\u00e0i \u22657%, \u0111\u1ed9 b\u1ec1n va \u0111\u1eadp v\u01b0\u1ee3t tr\u1ed9i. \u00a0<\/li>\n\n\n\n<li>T\u1ea3i tr\u1ecdng: \u0110\u1ea1t ti\u00eau chu\u1ea9n GB D400 (t\u1ea3i tr\u1ecdng 40 t\u1ea5n), v\u01b0\u1ee3t qua th\u1eed nghi\u1ec7m l\u0103n c\u1ee7a xe h\u1ea1ng n\u1eb7ng. \u00a0<\/li>\n\n\n\n<li>C\u1ea5u tr\u00fac: L\u01b0\u1edbi g\u00e2n gia c\u1ed1 + h\u1ecda ti\u1ebft ch\u1ed1ng tr\u01b0\u1ee3t (h\u00ecnh r\u0103ng c\u01b0a\/g\u1ee3n s\u00f3ng), h\u1ec7 s\u1ed1 ma s\u00e1t \u01b0\u1edbt &gt;0,8. \u00a0<\/li>\n<\/ul>\n\n\n\n<p>\u2461 Tho\u00e1t n\u01b0\u1edbc hi\u1ec7u qu\u1ea3 cao &nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Di\u1ec7n t\u00edch m\u1edf \u226523%: Ph\u00e2n b\u1ed5 l\u1ed7 t\u1ed1i \u01b0u gi\u00fap ng\u0103n ng\u1eeba hi\u1ec7n t\u01b0\u1ee3ng \u0111\u1ecdng n\u01b0\u1edbc tr\u00ean b\u1ec1 m\u1eb7t. \u00a0<\/li>\n\n\n\n<li>Khe h\u1edf \u226425 mm: Ch\u1eb7n m\u1ea3nh v\u1ee5n hi\u1ec7u qu\u1ea3, gi\u00fap b\u1ea3o tr\u00ec d\u1ec5 d\u00e0ng h\u01a1n. \u00a0<\/li>\n<\/ul>\n\n\n\n<p>\u2462 Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n l\u00e2u d\u00e0i &nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L\u1edbp ph\u1ee7: M\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng (\u226580 \u03bcm) + l\u1edbp ph\u1ee7 nh\u1ef1a \u0111\u01b0\u1eddng. \u00a0<\/li>\n\n\n\n<li>Kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft: \u1ed4n \u0111\u1ecbnh t\u1eeb -30\u00b0C \u0111\u1ebfn +150\u00b0C; th\u1eed nghi\u1ec7m phun mu\u1ed1i trong &gt;1.000 gi\u1edd. \u00a0<\/li>\n\n\n\n<li>Tu\u1ed5i th\u1ecd thi\u1ebft k\u1ebf: \u226530 n\u0103m (\u0111i\u1ec1u ki\u1ec7n b\u00ecnh th\u01b0\u1eddng). \u00a0<\/li>\n<\/ul>\n\n\n\n<p>\u2463 An to\u00e0n &amp; C\u00f4ng th\u00e1i h\u1ecdc &nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u1ea5u tr\u00fac ch\u1ed1ng r\u01a1i: L\u01b0\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 304 t\u00f9y ch\u1ecdn (t\u1ea3i tr\u1ecdng \u2265100 kg). \u00a0<\/li>\n\n\n\n<li>Kh\u00f3a ch\u1ed1ng tr\u1ed9m: B\u1ea3n l\u1ec1\/kh\u00f3a ch\u1ed1t \u1ea9n ng\u0103n ch\u1eb7n 80% c\u00e1c h\u00e0nh vi tr\u1ed9m c\u1eafp. \u00a0<\/li>\n\n\n\n<li>Gi\u1ea3m ti\u1ebfng \u1ed3n: Gio\u0103ng cao su gi\u00fap lo\u1ea1i b\u1ecf ti\u1ebfng \u1ed3n do va ch\u1ea1m c\u1ee7a xe. \u00a0<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">III. \u1ee8ng d\u1ee5ng &nbsp;<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u00f4ng tr\u00ecnh \u0111\u00f4 th\u1ecb: \u0110\u01b0\u1eddng \u0111\u00f4 th\u1ecb, l\u00e0n \u0111\u01b0\u1eddng d\u00e0nh cho xe \u0111\u1ea1p, h\u1ec7 th\u1ed1ng tho\u00e1t n\u01b0\u1edbc v\u00e0nh \u0111ai xanh. \u00a0<\/li>\n\n\n\n<li>Ti\u1ec7n \u00edch c\u00f4ng c\u1ed9ng: S\u00e2n bay, c\u1ea3ng, nh\u00e0 ga, qu\u1ea3ng tr\u01b0\u1eddng l\u1edbn. \u00a0<\/li>\n\n\n\n<li>Khu d\u00e2n c\u01b0\/Th\u01b0\u01a1ng m\u1ea1i: \u0110\u01b0\u1eddng c\u1ed9ng \u0111\u1ed3ng, l\u1ed1i v\u00e0o gara, l\u1ed1i \u0111i c\u00f3 c\u1ea3nh quan \u0111\u1eb9p. \u00a0<\/li>\n\n\n\n<li>Khu c\u00f4ng nghi\u1ec7p: Khu h\u1eadu c\u1ea7n, \u0111\u01b0\u1eddng nh\u00e0 m\u00e1y, kho b\u00e3i. \u00a0<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">IV. Ti\u00eau chu\u1ea9n &amp; Ch\u1ee9ng nh\u1eadn &nbsp;<\/h3>\n\n\n\n<p>Qu\u1ed1c t\u1ebf: EN124 D400 (t\u1ea3i tr\u1ecdng), ISO1083 (v\u1eadt li\u1ec7u). \u00a0<\/p>\n\n\n\n<p>Trung Qu\u1ed1c: \u00a0<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>GB\/T 23858-2009 N\u1eafp h\u1ed1 ga. \u00a0<\/li>\n\n\n\n<li>CJ\/T 327-2010 L\u01b0\u1edbi ch\u1eafn n\u01b0\u1edbc t\u00e1i ch\u1ebf. \u00a0<\/li>\n<\/ul>\n\n\n\n<p>Ch\u1ee9ng nh\u1eadn: \u00a0<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B\u00e1o c\u00e1o th\u1eed nghi\u1ec7m phun mu\u1ed1i SGS (&gt;3.000 gi\u1edd). \u00a0<\/li>\n\n\n\n<li>\u0110\u01b0\u1ee3c Hi\u1ec7p h\u1ed9i K\u1ef9 thu\u1eadt \u0110\u00f4 th\u1ecb Trung Qu\u1ed1c khuy\u00ean d\u00f9ng. \u00a0<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ea3n t\u00f3m t\u1eaft &nbsp;<\/h3>\n\n\n\n<p>L\u01b0\u1edbi tho\u00e1t n\u01b0\u1edbc tr\u00f2n b\u1eb1ng gang d\u1ebbo t\u1ea1o n\u00ean cu\u1ed9c c\u00e1ch m\u1ea1ng trong l\u0129nh v\u1ef1c tho\u00e1t n\u01b0\u1edbc \u0111\u00f4 th\u1ecb v\u1edbi kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i c\u1ea5p qu\u00e2n s\u1ef1, ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng c\u1ea7n b\u1ea3o tr\u00ec trong 30 n\u0103m v\u00e0 kh\u1ea3 n\u0103ng qu\u1ea3n l\u00fd n\u01b0\u1edbc m\u01b0a tuy\u1ec7t v\u1eddi. \u0110i\u1ec3m m\u1ea1nh ch\u00ednh: &nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1. C\u00e1ch m\u1ea1ng tho\u00e1t n\u01b0\u1edbc: Thi\u1ebft k\u1ebf chuy\u1ec3n h\u01b0\u1edbng h\u00ecnh ch\u1eef V + t\u1ef1 l\u00e0m s\u1ea1ch gi\u00fap lo\u1ea1i b\u1ecf t\u00ecnh tr\u1ea1ng ng\u1eadp l\u1ee5t khi m\u01b0a l\u1edbn. &nbsp;<\/li>\n\n\n\n<li>2. Ultimate Heavy-Duty King: T\u1ea3i tr\u1ecdng 40 t\u1ea5n v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m c\u00f9ng lo\u1ea1i. &nbsp;<\/li>\n\n\n\n<li>3. Ti\u1ebft ki\u1ec7m v\u00f2ng \u0111\u1eddi: 50% chi ph\u00ed b\u1ea3o tr\u00ec th\u1ea5p h\u01a1n; tu\u1ed5i th\u1ecd g\u1ea5p 3 l\u1ea7n gang x\u00e1m. &nbsp;<\/li>\n<\/ul>\n\n\n\n<p>S\u1ea3n ph\u1ea9m n\u00e0y kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u1ed1i v\u1edbi vi\u1ec7c ki\u1ec3m so\u00e1t l\u0169 l\u1ee5t, trung t\u00e2m v\u1eadn t\u1ea3i v\u00e0 c\u00e1c khu v\u1ef1c c\u00f3 t\u1ea3i tr\u1ecdng cao, \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c t\u00ecnh hu\u1ed1ng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 tin c\u1eady v\u00e0 \u0111\u1ed9 b\u1ec1n cao.<\/p>","protected":false},"excerpt":{"rendered":"<p>T\u1ea1i sao n\u00ean ch\u1ecdn L\u01b0\u1edbi gang d\u1ebbo c\u1ee7a ch\u00fang t\u00f4i? &quot;Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 gang \u0111\u1ec1u l\u00e0 gang d\u1ebbo!&quot; So v\u1edbi l\u01b0\u1edbi gang x\u00e1m gi\u00f2n ho\u1eb7c l\u01b0\u1edbi nh\u1ef1a composite d\u1ec5 b\u1ecb l\u00e3o h\u00f3a, gang d\u1ebbo QT500-7 mang \u0111\u1ebfn b\u01b0\u1edbc nh\u1ea3y v\u1ecdt mang t\u00ednh c\u00e1ch m\u1ea1ng v\u1ec1 c\u01b0\u1eddng \u0111\u1ed9 n\u00e9n, kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp v\u00e0 \u0111\u1ed9 b\u1ec1n\u2014v\u1edbi chi ph\u00ed v\u00f2ng \u0111\u1eddi th\u1ea5p h\u01a1n 40%\u2014nh\u1edd \u0111\u1ed9 b\u1ec1n v\u00e0 t\u00ednh linh ho\u1ea1t c\u00e2n b\u1eb1ng c\u1ee7a n\u00f3. I. T\u00ednh n\u0103ng k\u1ef9 thu\u1eadt [\u2026]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,2,39],"tags":[75,115,116],"class_list":["post-635","post","type-post","status-publish","format-standard","hentry","category-ductile-cast-iron-products","category-products","category-round-grate-manhole-cover","tag-ductile-iron","tag-ductile-iron-round-drainage-grate","tag-round-drainage-grate"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ductile Cast Iron Round Drainage Grate Round Grate Manhole Cover - LZBMetal Products Co., Ltd<\/title>\n<meta name=\"description\" content=\"Why Choose Our Ductile Iron Grate? \u00a0&quot;Not all cast iron is ductile iron!&quot; \u00a0Compared to brittle gray iron grates or aging-prone composite plastic grates, QT500-7 ductile iron delivers a revolutionary leap in compressive strength, impact resistance, and durability\u2014with 40% lower lifecycle costs\u2014thanks to its balanced strength and flexibility.\" \/>\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-hinh-tron\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ductile Cast Iron Round Drainage Grate Round Grate Manhole Cover - LZBMetal Products Co., Ltd\" \/>\n<meta property=\"og:description\" content=\"Why Choose Our Ductile Iron Grate? 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