{"id":3063,"date":"2026-08-13T12:43:27","date_gmt":"2026-08-13T04:43:27","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=3063"},"modified":"2026-08-13T15:38:27","modified_gmt":"2026-08-13T07:38:27","slug":"718-mold-steel","status":"publish","type":"material_model","link":"https:\/\/www.jcinjectionmolding.com\/vi\/materials\/mold-steel\/718-mold-steel\/","title":{"rendered":"Th\u00e9p l\u00e0m khu\u00f4n 718"},"content":{"rendered":"
\n

<\/p>\n

\n

\u0110\u1ed9 ch\u00ednh x\u00e1c cao Th\u00e9p l\u00e0m khu\u00f4n 718<\/strong> gia c\u00f4ng l\u00f2ng khu\u00f4n cho v\u1ecf thi\u1ebft b\u1ecb gia d\u1ee5ng c\u1ee1 l\u1edbn v\u00e0 t\u1ea5m n\u1ed9i th\u1ea5t \u00f4 t\u00f4. \u0110\u01b0\u1ee3c ti\u1ec1n t\u00f4i luy\u1ec7n v\u1edbi ph\u1ee5 gia h\u1ee3p kim niken \u0111\u1ebfn 32\u201338 HRC, th\u00e9p 718H (DIN 1.2738) mang l\u1ea1i \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u \u0111\u1ed9 c\u1ee9ng v\u00f9ng s\u00e2u \u0111\u1eb7c bi\u1ec7t v\u00e0 kh\u00f4ng bi\u1ebfn d\u1ea1ng do x\u1eed l\u00fd nhi\u1ec7t qua h\u01a1n 500.000 chu k\u1ef3 s\u1ea3n xu\u1ea5t.<\/p>\n<\/section>\n

<\/p>\n

\n

H\u1ed3 s\u01a1 luy\u1ec7n kim & kh\u1ed1i l\u1edbn c\u1ee7a th\u00e9p khu\u00f4n 718H<\/h2>\n

718H l\u00e0 th\u00e9p ti\u1ec1n t\u00f4i luy\u1ec7n niken-crom-molypden cao c\u1ea5p, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 c\u1ee9ng nh\u1ea5t qu\u00e1n tr\u00ean c\u00e1c kh\u1ed1i l\u00f5i khu\u00f4n d\u00e0y:<\/p>\n\n\n\n\n\n\n\n
Th\u00f4ng s\u1ed1 luy\u1ec7n kim<\/th>\nTh\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt th\u00e9p 718 (h\u1ec7 m\u00e9t)<\/th>\n\u01afu \u0111i\u1ec3m cho khu\u00f4n c\u1ee1 l\u1edbn<\/th>\n<\/tr>\n<\/thead>\n
Ti\u1ec1n t\u00f4i luy\u1ec7n h\u1ee3p kim niken<\/td>\n32 \u2013 38 HRC (340 HB)<\/td>\n\u0110\u01b0\u1ee3c ti\u1ec1n t\u00f4i luy\u1ec7n \u1edf \u0111\u1ed9 c\u1ee9ng cao h\u01a1n P20, mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng bi\u1ebfn d\u1ea1ng l\u00f5i v\u01b0\u1ee3t tr\u1ed9i d\u01b0\u1edbi \u00e1p su\u1ea5t phun cao.<\/td>\n<\/tr>\n
\u0110\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u v\u00f9ng s\u00e2u<\/td>\nDIN 1.2738 \/ AISI P20+Ni<\/td>\nPh\u1ee5 gia niken ng\u0103n ng\u1eeba v\u00f9ng l\u00f5i m\u1ec1m trong c\u00e1c kh\u1ed1i th\u00e9p d\u00e0y (\u0111\u1ebfn \u0111\u1ed9 s\u00e2u 400mm), \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 m\u00e0i m\u00f2n dao c\u1eaft CNC 5 tr\u1ee5c \u0111\u1ed3ng \u0111\u1ec1u.<\/td>\n<\/tr>\n
T\u1ea1o v\u00e2n & kh\u1ea3 n\u0103ng \u0111\u00e1nh b\u00f3ng<\/td>\nT\u01b0\u01a1ng th\u00edch v\u1edbi kh\u1eafc SPI B-1 & Mold-Tech<\/td>\nT\u1ea1o ra c\u00e1c h\u1ecda ti\u1ebft kh\u1eafc axit \u0111\u1ed3ng \u0111\u1ec1u cho n\u1ed9i th\u1ea5t \u00f4 t\u00f4 v\u00e0 \u0111\u00e1nh b\u00f3ng gi\u1ea5y b\u00f3ng cao m\u00e0 kh\u00f4ng b\u1ecb bi\u1ebfn d\u1ea1ng v\u00e2n.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

<\/p>\n

\n

Ma tr\u1eadn t\u01b0\u01a1ng th\u00edch v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a th\u00e9p 718 v\u1edbi polymer<\/h2>\n

Th\u00e9p 718H t\u00f4i c\u1ee9ng s\u01a1 b\u1ed9 l\u00e0 ti\u00eau chu\u1ea9n ng\u00e0nh cho c\u00e1c chi ti\u1ebft nh\u1ef1a phi \u0103n m\u00f2n c\u1ee1 trung \u0111\u1ebfn l\u1edbn trong \u00c9p phun nh\u1ef1a<\/strong>:<\/p>\n\n\n\n\n\n\n
Lo\u1ea1i nh\u1ef1a polymer<\/th>\nV\u1eadt li\u1ec7u n\u1ec1n khuy\u1ebfn ngh\u1ecb<\/th>\nChi\u1ebfn l\u01b0\u1ee3c gia c\u00f4ng khu\u00f4n 718<\/th>\n<\/tr>\n<\/thead>\n
\u0110\u1ed3 gia d\u1ee5ng & bao b\u00ec c\u1ee1 l\u1edbn<\/td>\nPolypropylene (PP)<\/strong>, Polyethylene (PE)<\/strong>, ABS<\/strong>, Polystyrene (PS)<\/strong><\/td>\nMang l\u1ea1i tu\u1ed5i th\u1ecd khu\u00f4n tr\u00ean 500.000 l\u1ea7n \u00e9p cho th\u00f9ng logistics l\u1edbn, n\u1eafp sau TV v\u00e0 l\u1ed3ng m\u00e1y gi\u1eb7t.<\/td>\n<\/tr>\n
N\u1ed9i th\u1ea5t \u00f4 t\u00f4 & \u1ed1p c\u1ea3n<\/td>\nPolycarbonate (PC)<\/strong>, Polyamide (PA\/Nylon)<\/strong>, H\u1ee3p kim PC\/ABS<\/td>\nH\u1ed7 tr\u1ee3 c\u00e1c h\u1ecda ti\u1ebft v\u00e2n kh\u1eafc axit tinh x\u1ea3o cho \u1ed1p c\u1eeda \u00f4 t\u00f4, h\u1ed9p g\u0103ng tay v\u00e0 vi\u1ec1n b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

<\/p>\n

\n

K\u1ef9 thu\u1eadt gia c\u00f4ng khu\u00f4n th\u00e9p 718 & b\u1ea3n thi\u1ebft k\u1ebf th\u00e9p t\u00f4i c\u1ee9ng s\u01a1 b\u1ed9<\/h2>\n

\u0110\u00fac v\u1edbi th\u00e9p 718H t\u00f4i c\u1ee9ng s\u01a1 b\u1ed9 c\u00e2n b\u1eb1ng t\u1ed1c \u0111\u1ed9 ch\u1ebf t\u1ea1o khu\u00f4n v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c l\u00f2ng khu\u00f4n th\u00f4ng qua b\u1ed1n \u01b0u \u0111i\u1ec3m k\u1ef9 thu\u1eadt:<\/p>\n

\n
\n

Kh\u00f4ng bi\u1ebfn d\u1ea1ng do x\u1eed l\u00fd nhi\u1ec7t (35 HRC)<\/p>\n

Because 718H steel is pre-hardened at the steel mill, no post-machining quench heat treatment is needed. This eliminates thermal stress distortion across large core plates, guaranteeing true-to-CAD dimensions on large appliance molds during Gia c\u00f4ng khu\u00f4n m\u1eabu t\u00f9y ch\u1ec9nh<\/strong><\/a>.<\/p>\n<\/div>\n

\n

Deep-Section Uniform Hardness (Nickel Addition)<\/p>\n

Unlike standard P20, 1% nickel addition in 718H prevents core softening in massive steel blocks. Jucheng\u2019s 5-axis CNC machining centers cut deep cavity walls with uniform tool wear and \u00b10.005 mm accuracy.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

\n

Key Application Fields for 718 Steel Injection Molds<\/h2>\n
    \n
  • Automotive Exterior & Interiors (IATF 16949):<\/strong> Large Khu\u00f4n \u00e9p phun s\u1ea3n xu\u1ea5t<\/strong> tools for bumper fascia trims, door panels, glove boxes, and dashboard bezels.<\/li>\n
  • Large Consumer Appliances:<\/strong> Washing machine tubs, refrigerator door liners, television back enclosures, and air conditioner housings.<\/li>\n
  • Industrial Logistics & Commodities:<\/strong> Heavy-duty stackable crates, recycling bins, agricultural trays, and \u00c9p phun hai th\u00e0nh ph\u1ea7n<\/strong> ho\u1eb7c \u00c9p phun ch\u00e8n<\/strong> ph\u1ee5 ki\u1ec7n.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

    High-precision 718 Mold Steel cavity manufacturing for large-scale appliance housings and automotive interior panels. Pre-hardened with nickel alloy addition to 32\u201338 HRC, 718H (DIN 1.2738) steel provides exceptional deep-section hardness uniformity and zero heat-treatment distortion across 500,000+ production cycles. 718H Mold Steel Metallurgical & Large Block Profile 718H is an upgraded nickel-chromium-molybdenum pre-hardened steel, engineered […]<\/p>\n","protected":false},"featured_media":3064,"template":"","meta":[],"class_list":["post-3063","material_model","type-material_model","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/material_model\/3063","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/material_model"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/types\/material_model"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media\/3064"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media?parent=3063"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}