{"id":2466,"date":"2026-05-30T10:10:55","date_gmt":"2026-05-30T02:10:55","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2466"},"modified":"2026-06-29T14:48:22","modified_gmt":"2026-06-29T06:48:22","slug":"peek-victrex-peek-450g","status":"publish","type":"material_model","link":"https:\/\/www.jcinjectionmolding.com\/fr\/materials\/polyetheretherketone-peek\/peek-victrex-peek-450g\/","title":{"rendered":"PEEK-Victrex PEEK 450G"},"content":{"rendered":"
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R\u00e9sistance m\u00e9canique et limites thermiques du Victrex PEEK 450G<\/h2>\n

Le Victrex\u2122 PEEK 450G est une r\u00e9sine de poly\u00e9ther\u00e9therc\u00e9tone semi-cristalline non renforc\u00e9e, \u00e0 viscosit\u00e9 moyenne, certifi\u00e9e pour offrir une rigidit\u00e9 m\u00e9canique in\u00e9gal\u00e9e et une r\u00e9sistance thermique continue selon les normes ASTM\/ISO :<\/p>\n\n\n\n\n\n\n\n
Propri\u00e9t\u00e9 d'ing\u00e9nierie<\/th>\nValeur de sp\u00e9cification DAM (ISO\/ASTM)<\/th>\nAvantage a\u00e9rospatial\/m\u00e9dical<\/th>\n<\/tr>\n<\/thead>\n
Temp\u00e9rature de service continu<\/td>\n260 \u00b0C (indice RTI UL 746B)<\/td>\nMaintient une r\u00e9sistance m\u00e9canique robuste et emp\u00eache le fluage du polym\u00e8re sous forte chaleur, permettant l'all\u00e8gement des supports p\u00e9troliers de fond de puits et a\u00e9rospatiaux.<\/td>\n<\/tr>\n
Module de flexion<\/td>\n4 100 MPa (ISO 178)<\/td>\nOffre une rigidit\u00e9 m\u00e9canique extr\u00eamement \u00e9lev\u00e9e et une r\u00e9sistance \u00e0 la d\u00e9flexion, id\u00e9ale pour les bagues d'usure structurelles et les engrenages rotatifs.<\/td>\n<\/tr>\n
Biocompatibilit\u00e9 et inertie<\/td>\nConforme FDA et USP Classe VI<\/td>\nTotalement chimiquement inerte, non toxique et r\u00e9sistant aux cycles r\u00e9p\u00e9t\u00e9s de vapeur en autoclave, parfaitement adapt\u00e9 aux implants d'essai chirurgicaux et aux capuchons de cicatrisation dentaire.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Cibles de traitement en environnement extr\u00eame pour Victrex 450G<\/h2>\n

Avec sa viscosit\u00e9 \u00e9lev\u00e9e et sa chimie semi-cristalline, le PEEK Victrex 450G n\u00e9cessite un profilage d'\u00e9nergie thermique \u00e9lev\u00e9 pour un moulage r\u00e9ussi :<\/p>\n\n\n\n\n\n\n\n
Condition de fonctionnement critique<\/th>\nAd\u00e9quation du processus et focus de conception<\/th>\n<\/tr>\n<\/thead>\n
Joints d'huile structurels et rondelles de but\u00e9e<\/td>\nExcellent. Configur\u00e9 avec des contr\u00f4leurs d'huile \u00e0 haute temp\u00e9rature pour mouler des rondelles automobiles autolubrifiantes, des connecteurs sous-marins et des bagues r\u00e9sistantes \u00e0 l'usure.<\/td>\n<\/tr>\n
Implants chirurgicaux d'essai biocompatibles<\/td>\nExcellent. Ex\u00e9cut\u00e9 dans nos salles blanches certifi\u00e9es ISO Classe 7\/8 pour mouler des capuchons cibles orthop\u00e9diques tr\u00e8s complexes et des vis de cicatrisation dentaire.<\/td>\n<\/tr>\n
Corps de capteurs sous le capot<\/td>\nExcellent. Bien adapt\u00e9 aux bo\u00eetiers de connecteurs robustes, aux isolateurs de r\u00e9seau intelligent et aux colliers de c\u00e2bles a\u00e9ronautiques n\u00e9cessitant un faible d\u00e9gazage.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Matrice d'outillage \u00e0 haute temp\u00e9rature pour Victrex PEEK 450G<\/h2>\n

Le moulage d'un polym\u00e8re semi-cristallin non renforc\u00e9 \u00e0 haute viscosit\u00e9 comme le PEEK 450G n\u00e9cessite des limites thermiques extr\u00eames pour assurer un d\u00e9veloppement cristallin correct :<\/p>\n

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Chauffage de moule \u00e0 huile sous pression \u00e0 haute temp\u00e9rature<\/p>\n

Pour garantir la phase semi-cristalline correcte (donnant au PEEK sa couleur beige opaque caract\u00e9ristique et sa rigidit\u00e9), les temp\u00e9ratures de moule doivent \u00eatre maintenues en continu \u00e0 160\u00b0C\u2013200\u00b0C (320\u00b0F \u00e0 392\u00b0F) \u00e0 l'aide de contr\u00f4leurs de chauffage \u00e0 huile. Les moules froids provoquent le gel du fondu \u00e0 l'\u00e9tat amorphe, rendant les pi\u00e8ces translucides brunes et m\u00e9caniquement faibles.<\/p>\n<\/div>\n

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Outillage durci en acier S136 poli miroir<\/p>\n

Due to the extreme clamping pressures and melt velocities of PEEK 450G, Jucheng\u2019s tooling division uses hardened, corrosion-resistant S136 stainless steel molds. We heat-treat cavities to 52 HRC and design generous draft angles (minimum 1.5\u00b0 to 2.0\u00b0) to ensure clean part release.<\/p>\n<\/div>\n

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Ceramic Barrel Melt Management<\/p>\n

Molding is processed between 360\u00b0C and 400\u00b0C (680\u00b0F to 752\u00b0F). Jucheng utilizes specialized, ceramic heater bands and bi-metallic barrels on our presses. Exceeding 420\u00b0C can result in chemical chain fracturing and polymer degradation.<\/p>\n<\/div>\n

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Pr\u00e9-s\u00e9chage prolong\u00e9 avec d\u00e9shydratant<\/p>\n

While PEEK absorbs minimal water, moisture causes hydrolytic splay and weld line degradation. We desiccant-dry PEEK 450G resin at 150\u00b0C (302\u00b0F) for 3\u20134 hours, keeping internal moisture below 0.02% to secure optimal molecular bonds.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Key Application Fields for PEEK-Victrex PEEK 450G<\/h2>\n
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  • Medical & Dental Technology (ISO 13485 Certified):<\/strong> Spinal fusion cages, temporary dental healing caps, orthopedic trial instruments, drug delivery cassettes, and surgical instrument parts.<\/li>\n
  • Aerospace & Semiconductor Infrastructure:<\/strong> Wafer carriers, chemical etching rings, vacuum chamber connectors, lightweight engine brackets, and high-frequency cable clamps.<\/li>\n
  • Groupes motopropulseurs automobiles et fluides (IATF 16949) :<\/strong> High-wear dynamic thrust washers, automatic transmission seal rings, steering column gears, and specialized fluid fittings.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

    Victrex PEEK 450G Mechanical Strength & Thermal Limits Victrex\u2122 PEEK 450G is an unreinforced, medium-viscosity semi-crystalline polyetheretherketone resin, certified to deliver unmatched mechanical stiffness and continuous thermal resistance under ASTM\/ISO standards: Engineering Property DAM Spec Value (ISO\/ASTM) Aerospace\/Medical Advantage Continuous Service Temp 260 \u00b0C (UL 746B RTL Rating) Maintains robust mechanical strength and prevents polymer […]<\/p>\n","protected":false},"featured_media":2467,"template":"","meta":[],"class_list":["post-2466","material_model","type-material_model","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/material_model\/2466","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/material_model"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/types\/material_model"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/media\/2467"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/media?parent=2466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}