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Breakthrough in Twin-Screw Extruder Technology: W6Mo5Cr4V2 Alloy Elements Achieve 600°C+ Heat Resistance

2024-07-24

Key Innovations

Material Upgrade: W6Mo5Cr4V2 high-speed steel (6% tungsten carbide) processed via vacuum gradient heat treatment achieves HRC67-69 hardness, reducing wear by 45% vs. traditional H13 steel. Endures 8,000+ hours in extreme conditions (e.g., PEEK processing).
Self-Cleaning Design: Patented helical flow channel structure optimizes thread engagement angle (±0.5° precision), eliminating carbon buildup in PPS/PEI high-viscosity compounding.
Laser Cladding Tech: 0.3mm titanium carbide coating on screw tips cuts metal contamination to <50ppm for glass fiber-reinforced plastics (e.g., PA66+30% GF).

Industry Applications

Medical: Passed ISO 10993 biocompatibility certification for PEI/PPSU sterilization-grade plastics, withstanding 500+ cycles of 134°C steam autoclaving.
EV Batteries: Enabled 48-hour continuous production of carbon fiber-PEEK battery trays at 600°C, reducing energy consumption by 18%.

Case Study
Jiangsu XX Modified Materials Co., Ltd. reported a 21% daily output increase (2.8→3.4 tons) in PC+30% GF processing, saving $110,000/year on spare parts.

Future Roadmap
Silicon nitride ceramic-coated screws under testing aim for 800°C applications in carbon fiber composites, with commercialization expected by 2024.

Nanjing Henglande Machinery Technology Co., Ltd.

products

Twin Screw Extruder

Recycling Plastic Pelletizer

Masterbatch Machine

Screw And Barrel

Plastic Sheet Extruder

Two Stage Extruder

Biodegradable Granulator

jayce@hldextruder.com 86-15251884557

NO.11,Qinghu Road,Hushu Town,Jiangning District,Nanjing,china.

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