Bimetallic Screw (Wear & Corrosion Resistant)
Screws
Bimetallic Screw (Wear & Corrosion Resistant)
Manufacturer:
Rajlaxmi Industries
Origin:
Ahmedabad, Gujarat, India
Delivery:
Pan India & Global Export
Product Overview
PTA / Clad Bimetallic Screws specifically engineered for processing abrasive glass-filled plastics and corrosive polymers.
Manufactured with high-velocity Plasma Transferred Arc (PTA) welding, our Bimetallic Screws feature tungsten carbide or cobalt-based alloy coatings on the flight tips. Recommended for processing plastics with up to 50% glass fiber, calcium carbonate, or flame retardant additives.
Material Grades
Base EN41B / H13 with Tungsten Carbide / Ni-Cr / Co-alloy Inlay
Hardness Rating
Flight Inlay Hardness: 58 - 64 HRC
Key Technical Advantages
- 3x to 5x higher service lifespan compared to nitrided screws
- Resistant to aggressive filler materials (Glass Fiber, Talc, CaCO3)
- Minimal flight edge wear maintaining stable plasticizing pressure
Technical Specifications Table
| Diameter Range | Ø 25 mm to Ø 250 mm |
|---|---|
| Primary Metallurgy | Base EN41B / H13 with Tungsten Carbide / Ni-Cr / Co-alloy Inlay |
| Surface Hardness | Flight Inlay Hardness: 58 - 64 HRC |
| Cladding Method | Plasma Transferred Arc (PTA) Automated Welding |
| Coating Thickness | 2.0 mm to 3.5 mm on flight crowns |
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