{"id":2319,"date":"2026-05-21T14:28:21","date_gmt":"2026-05-21T06:28:21","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2319"},"modified":"2026-06-30T17:14:23","modified_gmt":"2026-06-30T09:14:23","slug":"polyoxymethylene-pom-acetal","status":"publish","type":"material","link":"https:\/\/www.jcinjectionmolding.com\/vi\/materials\/polyoxymethylene-pom-acetal\/","title":{"rendered":"Polyoxymethylene (POM\/Acetal)"},"content":{"rendered":"
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C\u00e1c lo\u1ea1i Polyoxymethylene (POM\/Acetal) to\u00e0n di\u1ec7n ch\u00fang t\u00f4i \u00e9p<\/h2>\n

Ch\u00fang t\u00f4i x\u1eed l\u00fd c\u00e1c c\u00f4ng th\u1ee9c POM c\u00f3 \u0111\u1ed9 c\u1ee9ng cao, m\u00e0i m\u00f2n th\u1ea5p t\u1eeb c\u00e1c nh\u00e0 l\u00e3nh \u0111\u1ea1o h\u00f3a d\u1ea7u to\u00e0n c\u1ea7u, h\u1ed7 tr\u1ee3 c\u00e1c c\u1ee5m l\u1eafp r\u00e1p c\u01a1 kh\u00ed c\u00f3 \u0111\u1ed9 th\u00e1ch th\u1ee9c cao:<\/p>\n\n\n\n\n\n\n\n
Lo\u1ea1i v\u1eadt li\u1ec7u POM<\/th>\nTh\u01b0\u01a1ng hi\u1ec7u & c\u1ea5p \u0111\u1ed9 \u0111i\u1ec3n h\u00ecnh<\/th>\n\u0110\u1eb7c \u0111i\u1ec3m & \u01b0u \u0111i\u1ec3m ch\u00ednh<\/th>\n<\/tr>\n<\/thead>\n
POM Homopolymer<\/td>\n\u2022 DuPont Delrin 100P \/ 500P \/ 900P
\n\u2022 DuPont Delrin 150<\/td>\n		C\u1ea5u tr\u00fac tinh th\u1ec3 cao h\u01a1n mang l\u1ea1i \u0111\u1ed9 b\u1ec1n k\u00e9o \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng, \u0111\u1ed9 c\u1ee9ng, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ecfi v\u00e0 ch\u1ed1ng t\u1eeb bi\u1ebfn v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi copolymer. \u0110\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong b\u00e1nh r\u0103ng v\u00e0 c\u1ea7n g\u1ea1t c\u01a1 kh\u00ed ch\u1ecbu t\u1ea3i cao.<\/td>\n<\/tr>\n
POM Copolymer<\/td>\n\u2022 Celanese Celcon M90 \/ M270
\n\u2022 Polyplastics Duracon M90-44
\n\u2022 Mitsubishi Iupital F20-03<\/td>\n		\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t, kh\u1ea3 n\u0103ng ch\u1ed1ng h\u00f3a ch\u1ea5t, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh th\u1ee7y ph\u00e2n v\u01b0\u1ee3t tr\u1ed9i v\u00e0 kh\u1ea3 n\u0103ng gia c\u00f4ng tuy\u1ec7t v\u1eddi (\u00edt c\u00f3 xu h\u01b0\u1edbng \u0111\u1ecdng c\u1eb7n trong khu\u00f4n). L\u00fd t\u01b0\u1edfng cho van n\u01b0\u1edbc n\u00f3ng, n\u1eafp b\u00ecnh nhi\u00ean li\u1ec7u v\u00e0 linh ki\u1ec7n \u0111i\u1ec7n t\u1eed.<\/td>\n<\/tr>\n
\u0110\u1ed9 m\u00e0i m\u00f2n & ma s\u00e1t th\u1ea5p<\/td>\n\u2022 DuPont Delrin 500AL \/ 100AL
\n\u2022 Polyplastics Duracon AW-01
\n\u2022 Celanese Hostaform C 9021 TF<\/td>\n		\u0110\u01b0\u1ee3c bi\u1ebfn t\u00ednh v\u1edbi PTFE (Teflon), silicone ho\u1eb7c ch\u1ea5t b\u00f4i tr\u01a1n h\u00f3a h\u1ecdc \u0111\u1ec3 gi\u1ea3m h\u1ec7 s\u1ed1 ma s\u00e1t v\u00e0 t\u0103ng \u0111\u00e1ng k\u1ec3 tu\u1ed5i th\u1ecd ch\u1ed1ng m\u00e0i m\u00f2n. \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf cho ray tr\u01b0\u1ee3t \u00eam v\u00e0 v\u00f2ng ch\u1ed1ng m\u00e0i m\u00f2n ch\u1ecbu t\u1ea3i n\u1eb7ng.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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C\u00e1c quy tr\u00ecnh \u00e9p phun \u00e1p d\u1ee5ng cho POM (Acetal)<\/h2>\n

T\u1ed1c \u0111\u1ed9 k\u1ebft tinh ch\u00ednh x\u00e1c v\u00e0 \u0111\u1eb7c t\u00ednh d\u00f2ng ch\u1ea3y c\u1ee7a POM h\u1ed7 tr\u1ee3 c\u00e1c c\u1ea5u tr\u00fac \u0111\u00fac ph\u1ee9c t\u1ea1p:<\/p>\n\n\n\n\n\n\n\n
Quy tr\u00ecnh \u0111\u00fac<\/th>\nKh\u1ea3 n\u0103ng x\u1eed l\u00fd v\u00e0 \u1ee9ng d\u1ee5ng<\/th>\n<\/tr>\n<\/thead>\n
\u00c9p phun ti\u00eau chu\u1ea9n<\/td>\nExcellent. Highly optimized for automotive gear sets, pulleys, zippers, sliding plates, and high-stiffness fasteners.<\/td>\n<\/tr>\n
\u00c9p Phun Vi M\u00f4<\/td>\nExcellent. POM’s exceptional flow and fast solidification rate make it the leading choice for micro-gears, tiny clock parts, and micro-actuators.<\/td>\n<\/tr>\n
\u00c9p Phun Ch\u00e8n<\/td>\nGood. Allows precision encapsulation of metal shafts, rotating pins, and bushings inside wear-resistant POM housings.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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POM (Polyoxymethylene) Tooling & Manufacturing Guide<\/h2>\n

While POM processes smoothly, its highly crystalline nature and gas emission profiles require highly experienced mold design and process control:<\/p>\n

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  • S\u1ea5y Tr\u01b0\u1edbc:<\/strong> POM has exceptionally low moisture absorption. However, to guarantee high surface cosmetics on visual components, we pre-dry POM resin at 80\u00b0C\u201390\u00b0C (176\u00b0F to 194\u00b0F) for 2 hours.<\/li>\n
  • Nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y:<\/strong> Processed between 190\u00b0C and 230\u00b0C (374\u00b0F to 446\u00b0F) for Homopolymers, and 180\u00b0C to 210\u00b0C (356\u00b0F to 410\u00b0F) for Copolymers. Melt temperatures must never exceed 240\u00b0C, or the resin will decompose, releasing corrosive formaldehyde gas.<\/li>\n
  • Nhi\u1ec7t \u0111\u1ed9 khu\u00f4n:<\/strong> Managed at elevated levels between 80\u00b0C and 120\u00b0C (176\u00b0F to 248\u00b0F). High mold temperatures ensure complete crystalline formulation, which is critical for dimensional stability and mechanical strength.<\/li>\n
  • Meticulous Venting Design:<\/strong> Formaldehyde outgassing occurs naturally during POM processing, which can corrode mold steel. Jucheng\u2019s in-house tooling division machines robust venting channels (0.02mm depth) and uses corrosion-resistant mold steel (e.g., S136) to ensure continuous, flawless production.<\/li>\n
  • Ki\u1ec3m so\u00e1t \u0111\u1ed9 co ng\u00f3t:<\/strong> POM exhibits high volumetric shrinkage (typically 1.8% to 2.5%). Our engineers calculate shrinkage isotropic trends and implement uniform wall thickness designs to eliminate sink marks and warpage.<\/li>\n<\/ul>\n<\/section>\n

    <\/p>\n

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    Key Application Industries for Molded POM Components<\/h2>\n
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    • C\u01a1 c\u1ea5u \u00f4 t\u00f4 (Ch\u1ee9ng nh\u1eadn IATF 16949):<\/strong> Window regulator brackets, door latch mechanisms, seat belt tensioner gears, windshield wiper pivots, and fuel sender units.<\/li>\n
    • Consumer & Mechanical Goods:<\/strong> Moving gears for printers, conveyor roller wheels, sliding zippers, snap-fit buttons, and water mixer valves.<\/li>\n
    • Medical Drug Delivery (ISO 13485 Compliant):<\/strong> Dry-powder inhaler gears, insulin pen internal slide racks, surgical tool sliding blocks, and dosing mechanism housings.<\/li>\n
    • Fluid Handling & Valves:<\/strong> Pump impellers, chemical spray nozzles, water meter components, household faucet valves, and pipe couplings.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

      Comprehensive Polyoxymethylene (POM\/Acetal) Grades We Mold We process high-stiffness, low-wear POM formulations from global petrochemical leaders, supporting highly challenging mechanical assemblies: POM Material Class Typical Brand & Grade Key Characteristics & Advantages POM Homopolymer \u2022 DuPont Delrin 100P \/ 500P \/ 900P \u2022 DuPont Delrin 150 Higher crystalline structure offering superior room-temperature tensile strength, stiffness, […]<\/p>\n","protected":false},"featured_media":2400,"template":"","meta":[],"material_type":[21],"application_feature":[],"machining_process":[],"class_list":["post-2319","material","type-material","status-publish","has-post-thumbnail","hentry","material_type-engineering-plastics"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/material\/2319","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/material"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/types\/material"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media\/2400"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media?parent=2319"}],"wp:term":[{"taxonomy":"material_type","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/material_type?post=2319"},{"taxonomy":"application_feature","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/application_feature?post=2319"},{"taxonomy":"machining_process","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/machining_process?post=2319"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}