Bimetallic Parallel Twin Screw for Extrusion

What is a Bimetallic Parallel Twin Screw for Extrusion?

Barrelize Bimetallic extrusion screws are made of two alloy metals. The first metal is the base material and the second metal is the coating material.  So the bimetallic extrusion screws have better corrosion and abrasion resistance, are more durable, and last longer than non-bimetallic ones.

How to make the bimetallic extrusion screw with two metals?

Barrelize use PTA welding machines to spray and weld the special ni-based alloy powders on the screw's ridge. So it can protect the screw flights and postpone the wear after we apply an abrasion and corrosion-proof coating layer on the top of the screw flights.

What 's the specification of Barrelize Bimetallic extrusion screws?

For the first base material, you can choose 38CrMoALA and 42CrMo. The second metal is ni-based alloy usually. Barrelize can make the thickness of the bimetallic layer: 1.5-2mm. The hardness can reach HRC53-HRC56.

The general advantage of Barrelize bimetallic extrusion screw: are high corrosion resistance, high wear resistance, and high temperature resistance, more durable,longer lifetime.

What is the application for Barrelize Bimetallic extrusion screws?

Additive plastic materials with less than 30% glass fiber, nylon, PC, PPA, te, fire PC+ glass fiber, Nylon + glass fiber.

blow film extrusion machines, plastic sheet extrusion machines, wire &cable extrusion machine

Contact us now about detailed requirements.Barrelize's 30 experience is there for you.