PEEK-Victrex PEEK 150G
Lograr una alta integridad mecánica y resistencia química en geometrías complejas de paredes delgadas que requieren longitudes de flujo largas exige un superpolímero de ultra flujo, que el PEEK 150G de Victrex ofrece a través de su matriz de polieteretercetona sin refuerzo y de baja viscosidad. Con una viscosidad de fusión de 130 Pa·s a 400°C y un punto de fusión de 343°C, este grado de fácil flujo está diseñado para llenar perfiles submilimétricos sin sacrificar la alta resistencia a la tracción (105 MPa) del PEEK puro. Jucheng Precision, bajo los marcos médicos y automotrices ISO 13485 e IATF 16949, se especializa en el moldeo de Victrex 150G. Utilizando moldes de acero inoxidable S136, controlamos sus variables de alta cristalización para entregar microengranajes sin rebabas y conectores de pared delgada verificados por CMM Zeiss.
Victrex PEEK 150G Thin-Wall Flow & Structural Profile
Victrex™ PEEK 150G is an unreinforced, high-flow semi-crystalline Polyetheretherketone resin, certified to deliver outstanding melt flow properties and robust mechanical stiffness under ASTM/ISO standards:
| Parámetro físico y de resistencia | Lexan 150G Standard Metric | Ventaja de moldeo de precisión |
|---|---|---|
| Melt Viscosity | Ultra-Low 130 Pa·s (at 400°C) | Enables smooth, low-pressure cavity filling of complex thin-walled medical connectors and micro-gears without short-shot defects. |
| Yield Strength | Tensile Stress at Yield 105 MPa | Retains outstanding structural stiffness and metal-like mechanical load-bearing capacity even in unreinforced configurations. |
| Ductilidad estructural | Tensile Elongation at Break 25 – 30% | Provides exceptional structural elongation and dynamic impact toughness compared to standard glass-filled grades, preventing brittle failure. |
Micro-Precision Process Adaptability for Easy-Flow PEEK 150G
With low melt viscosity and integrated high-flow kinetics, PEEK 150G processes predictably inside extremely tight mold cavities:
| Clase de Proceso de Moldeo | Compatibilidad de Proceso y Detalles Operativos |
|---|---|
| Thin-Wall Structural Enclosures | Excellent. The primary process for PEEK 150G. Perfect for sub-millimeter medical connector pins, aerospace conduit guides, and diagnostic cuvettes. |
| Micro-Precision Gears & Components | Excellent. Highly optimized for manufacturing sub-millimeter micro-helical gears, medical diagnostic rotors, and orthopedic target pins. |
| Carreras Rápidas Automatizadas de Múltiples Cavidades | Excellent. Easy-flow characteristics support rapid, high-pressure injection molding with highly uniform weight and dimensional replication. |
PEEK-Victrex PEEK 150G Dynamic Molding Processing Matrix
Molding an ultra-high fluidity, semi-crystalline super-polymer like PEEK 150G requires high thermal boundaries and micron-level parting lines to prevent flashing:
Control de Rebabas a Nivel de Micras (Precisión de Herramientas)
Because PEEK 150G has exceptional flow capabilities (melt viscosity 130 Pa·s), molten resin can seep easily into minor mold gaps, causing unsightly flashing. Jucheng’s tooling division uses 5-axis CNC machines to achieve micro-tolerances, keeping mold parting clearances strictly within 0.005mm on premium S136 stainless steel mold cavity blocks heat-treated to 52 HRC.
Calentamiento del Molde con Aceite Presurizado (Control de Cristalización)
To secure the proper semi-crystalline phase (giving PEEK its signature opaque beige color and stiffness), mold temperatures must be maintained continuously at 160°C–200°C (320°F to 392°F) using pressurized oil-heating controllers. Cold molds cause the melt to freeze amorphous, turning parts translucent brown and mechanically weak.
Protocolo de Secado con Desecante
While PEEK absorbs minimal water, moisture causes hydrolytic splay and weld line degradation. We desiccant-dry PEEK 150G resin at 150°C (302°F) for 3–4 hours, keeping internal moisture below 0.02% to secure optimal molecular bonds.
Melt and Gate Optimization
Melt temperatures are strictly kept between 360°C and 400°C (680°F to 752°F) using ceramic heater bands. To prevent high shear heating and cosmetic splay near sub-millimeter gates, our engineering team optimizes hot-runner gate geometries during the DFM phase.
Key Application Fields for PEEK-Victrex PEEK 150G
- Dispositivos médicos y dentales (Certificado ISO 13485): Thin-walled dental healing caps, surgical spinal components, drug delivery connectors, micro-fluidic diagnostic valves, and surgical tool parts.
- Aerospace & Semiconductor Infrastructure: Multi-pin aerospace connectors, dynamic cable guides, chemical etching rings, vacuum chamber fittings, and micro-actuator gears.
- Automotive Powertrains & Dynamics (IATF 16949): Specialized sub-gate oil seal rings, dynamic thrust washers, micro steering column gears, and specialized sensor housings.
Propiedades
| Densidad | 1.3 g/cm³ |
| Viscosidad de Fusión (400°C) | 130 Pa·s |
| Módulo de Tracción (23°C) | 4,100 MPa |
| Esfuerzo de tracción en fluencia (23°C) | 105 MPa |
| Tensile Strain at Break (23°C) | 25 - 30 % |
| Flexural Strength (yield, 23°C) | 178 MPa |
| Módulo de Flexión (23°C) | 3.900 MPa |
| Resistencia al impacto Charpy con entalla (23°C) | 4.2 kJ/m² |
| Resistencia al Impacto Izod con Entalla (23°C) | 4.0 - 5.0 kJ/m² |
| Temperatura de fusión | 343 °C |
| Temperatura de transición vítrea (inicio) | 143 °C |
| Heat Deflection Temperature (HDT @ 1.80 MPa, Unannealed) | 156 °C |
| Heat Deflection Temperature (HDT @ 1.80 MPa, Annealed) | 167 °C |
| Contracción de moldeo lineal (Dirección de flujo) | 1 % |
| Contracción de moldeo lineal (Dirección transversal) | 1.3 % |
| Tamaño Máximo de Pieza | 600 x 400 mm |
| Tamaño Mínimo de Pieza (Límite de Microinyección) | 0.1 x 0.1 mm |