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Plastic extruder screw upgrade: wear and adhesion advantages of Daokedao laser cladding
Date:2025-11-03 14:38     Source:daokedao     Browse:57

The screw of a plastic extruder transports molten plastic under high temperature and pressure. Traditional screws are prone to plastic adhesion and wear, resulting in unstable extrusion volume and defects on the surface of the product. The surface hardness of screws treated with traditional nitriding is low, and their service life is only 6-12 months.

Optimization plan for plastic processing conditions for Daokedao laser cladding equipment. On the surface of the screw thread, an anti adhesive and wear-resistant alloy coating is melted, with a surface hardness of HRC60-65 and a friction coefficient reduced to below 0.15, effectively preventing plastic adhesion.

The service life of the extruder screw after melting is extended to 2-3 years, the extrusion stability is improved by 30%, and the product qualification rate is increased by 15%. Compared to replacing the new screw, the upgrade cost is only one-third, and the old screw can be refurbished and upgraded, greatly reducing production costs for plastic processing enterprises.


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