Laser Quenching equipment
Perform phase transformation hardening treatment on the metal surface to improve the hardness, wear ...
Perform phase transformation hardening treatment on the metal surface to improve the hardness, wear ...
Used for surface strengthening, repair, and remanufacturing of components, the coating has high adhe...
Flexible processing of complex curved sheet metal parts, with high cutting accuracy, fast speed, and...
Specially designed for seamless welding of precision plastic components, with a small heat affected ...
Rubber extruder screw is the core component of rubber plasticization and molding. During rubber processing, it needs to work under high temperature (150-200 ℃) and high pressure for a long time to withstand the strong shear and scouring of rubber materials. At the same time, it should deal with the corrosion of additives in rubber, which is easy to cause such problems as screw edge wear and surface adhesive. The abrasion of screw edge will lead to uneven plasticized rubber and unstable extrusion amount, affecting the quality of rubber products; The adhesive phenomenon will increase the material residue, cause rubber degradation and further deteriorate the product quality. Traditional repair methods (such as overlaying and spraying) are difficult to ensure the repair accuracy, and the surface smoothness of the repaired screw is poor, and the adhesive problem is more serious; The cost of changing a new screw is high and the delivery period is long. Based on the repair requirements of rubber extruder screw, Dow Laser Cladding Equipment adopts high-temperature and wear-resistant coating cladding scheme to form a dense and smooth reinforcement layer on the screw surface, effectively improving the wear resistance and adhesive resistance of the screw.
The equipment ensures that the dimensional accuracy deviation of the repaired screw is ≤ ± 0.01mm and the surface roughness Ra is ≤ 0.8 μ m by accurately controlling the cladding process parameters, which reduces the adhesive force between the adhesive and the screw surface and effectively solves the adhesive problem. For the screw of tire extruder in a rubber factory, the rubber material plastification is uneven due to the abrasion of screw edge, and the scrap rate of tire reaches 4.3%. The plastification uniformity of rubber material is increased by 8%, and the scrap rate of tire is reduced to 2.0% after the repair with Dow laser cladding equipment. The annual scrap loss of a single production line can be reduced by over 200000 yuan. The service life of the repaired screw rod is 2 times longer, the maintenance period is extended from 3 months to 9 months, and the repair cost is only 25% of the replacement screw rod, greatly reducing the production and maintenance cost of the enterprise. At the same time, the heat dissipation performance of the screw after cladding is better, the rubber degradation problem caused by local high temperature is avoided, and the quality stability of the rubber products is further improved.
