Materials and
Wear Resistance

In particular, the processing of glass fibers, calcite, reinforcing materials or similar additives, which causes high abrasive and corrosive wear, shortens the life of the plasticizing unit. Thanks to the correct selection of screw and barrel material and the appropriate hardening method, your machine shows minimum irregularity and continues operation for longer periods.

Depending on the raw material and processing conditions, the right design, steel, and hardening method are the three main factors that determine the life of the screw and barrel. Enformak offers the most suitable solution to your process and guarantee that it will provide the optimum working life time.

There are three different types of wear observed in the barrel and screws. These are: abrasive, corrosive, and adhesive wear.

Abrasive Wear:  Abrasive Wear is caused by the long contact of hard abrasive materials (glass fiber, glass-containing material, silica, calcite, talc, flame retardants) under high temperature and pressure conditions.

Corrosive Wear: Corrosive wear is caused by chemical interaction of any component in the formulation with the screw and forms pitting on the surface of the screw.

Adhesive Wear: Adhesive wear is caused by contact between metal surfaces. As a result of the rotational movement of the screw, a continuous interaction occurs between the screw pitches and the inner diameter of the barrel at high pressures. As a result, elusion of metal from the body of the screw or barrel will be observed.



See our solutions for barrels, screws, filters and other ancillary equipment.

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