{"id":2445,"date":"2026-05-29T15:48:34","date_gmt":"2026-05-29T07:48:34","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2445"},"modified":"2026-06-29T11:25:46","modified_gmt":"2026-06-29T03:25:46","slug":"pom-dupont-delrin-500p","status":"publish","type":"material_model","link":"https:\/\/www.jcinjectionmolding.com\/vi\/materials\/polyoxymethylene-pom-acetal\/pom-dupont-delrin-500p\/","title":{"rendered":"POM-DuPont Delrin 500P"},"content":{"rendered":"
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Delrin 500P Homopolymer Mechanical & Creep Resilience<\/h2>\n

Delrin\u00ae 500P NC010 is a medium-viscosity acetal homopolymer. Due to its superior high-crystallinity matrix, it provides enhanced mechanical strength, fatigue resistance, and creep modulus over standard copolymer acetals:<\/p>\n\n\n\n\n\n\n\n
\u673a\u68b0\u6027\u80fd<\/th>\nDelrin 500P Typical Value<\/th>\nHomopolymer (POM-H) Engineering Edge<\/th>\n<\/tr>\n<\/thead>\n
Tensile Stiffness<\/td>\nTensile Modulus 3100 MPa \/ Yield 71 MPa<\/td>\nExhibits roughly 15% to 20% higher tensile yield strength and flex modulus than acetal copolymers, allowing for thinner, lighter, and more rigid wall designs.<\/td>\n<\/tr>\n
Long-Term Creep<\/td>\nTensile Creep Modulus (1000h) 1600 MPa<\/td>\nDemonstrates exceptional resistibility to structural deformation and thread loosening under continuous mechanical loads.<\/td>\n<\/tr>\n
Dynamic Fatigue<\/td>\nUnmatched Fatigue Cycle Resistance<\/td>\nHighly resistant to cyclic loading, preventing structural fatigue cracks in continuous-running gearboxes and belt tensioners.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Frictional and Structural Molding Adaptability for Delrin 500P<\/h2>\n

With intermediate melt viscosity and inherent slip additives, Delrin 500P flows uniformly to secure high-tolerance functional parts:<\/p>\n\n\n\n\n\n\n\n
Molding Technology<\/th>\nProcess Compatibility & Operational Details<\/th>\n<\/tr>\n<\/thead>\n
Precision Dynamic Gears<\/td>\nExcellent. The primary process for Delrin 500P. Ideal for precision spur gears, planetary gears, worm drives, and dynamic cam structures requiring high fatigue life.<\/td>\n<\/tr>\n
Low-Friction Slide Bearings<\/td>\nExcellent. Highly suitable for sliding bushings, structural pulleys, dynamic conveyer rollers, and linear slide guides running without lubrication.<\/td>\n<\/tr>\n
Fast-Cycling Snap-Fit Clips<\/td>\nExcellent. High elastic recovery and yield strain allow molding of heavy-duty safety seatbelt restraint clips, industrial fasteners, and automotive cabin clips.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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POM-DuPont Delrin 500P Mold Engineering Matrix<\/h2>\n

Molding an acetal homopolymer like Delrin 500P requires strict thermal stability parameters and advanced mold outgassing solutions to protect tooling and avoid visual splay:<\/p>\n

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S136 Hardened Steel & Formaldehyde Venting<\/p>\n

Acetal homopolymers release corrosive formaldehyde gas when overheated (>230\u00b0C) or held too long in the melt barrel. To protect tool face integrity, Jucheng\u2019s tooling division uses hardened, corrosion-resistant S136 stainless steel molds and machines deep venting slots (0.020mm) on parting lines to prevent diesel burn marks.<\/p>\n

Managing High Crystalline Shrinkage<\/p>\n

Delrin 500P exhibits high volumetric shrinkage (1.80% to 2.20%) due to its high crystalline nucleation rate. Our engineers conduct Moldflow analysis during DFM to balance gate designs and pack cycles, preventing voids and sink marks on thick structural ribs.<\/p>\n

Oil-Heated Mold Temperature Controls<\/p>\n

To optimize crystallinity and surface gloss, we keep mold temperatures at 80\u00b0C to 120\u00b0C (176\u00b0F to 248\u00b0F) using pressurized temperature controllers. Low mold temperatures prevent the crystalline phase from forming correctly, resulting in part warpage and dimensional instability over time.<\/p>\n<\/div>\n<\/section>\n

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Key Application Fields for POM-DuPont Delrin 500P<\/h2>\n
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  • Automotive Mechanisms (IATF 16949 Certified):<\/strong> Door latch gears, window regulator sliders, seatbelt restraint mechanisms, windshield wiper pivots, and fuel level sender modules.<\/li>\n
  • Precision Consumer & Industrial Machinery:<\/strong> Office printer gear trains, heavy-duty logistics conveyor rollers, sliding zipper pullers, water mixer valves, and heavy-duty snap fasteners.<\/li>\n
  • Medical Drug Delivery Systems (ISO 13485 Compliant):<\/strong> Dry-powder inhaler internal gears, insulin pen sliding racks, surgical instrument sliding blocks, and dosing mechanisms (non-implantable).<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

    Delrin 500P Homopolymer Mechanical & Creep Resilience Delrin\u00ae 500P NC010 is a medium-viscosity acetal homopolymer. Due to its superior high-crystallinity matrix, it provides enhanced mechanical strength, fatigue resistance, and creep modulus over standard copolymer acetals: Mechanical Property Delrin 500P Typical Value Homopolymer (POM-H) Engineering Edge Tensile Stiffness Tensile Modulus 3100 MPa \/ Yield 71 MPa […]<\/p>\n","protected":false},"featured_media":2446,"template":"","meta":[],"class_list":["post-2445","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\/2445","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\/2446"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media?parent=2445"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}