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Special machine tool for coupling spray welding
Spray welding is to reheat the preheated autolytic alloy powder coating to 1000~1300°C to melt the particles and cause slagging to float to the surface of the coating.
Classification:
Special machine tool for hoop spray welding
Key words:
Special machine tool for coupling spray welding
Product Description
Spray welding is to reheat the preheated autolytic alloy powder coating to 1000~1300°C to melt the particles and cause slagging to float to the surface of the coating. The generated boride and silicide are dispersed in the coating, causing the particles to Achieve good bonding with the substrate surface. The final deposit is a dense metal crystal structure and forms a metallurgical bonding layer with the matrix of about 0.05~0.1mm. Its bonding strength is about 400MPa. It has good impact resistance, wear resistance, corrosion resistance, and a mirror appearance.
Compared with the spray coating, the spray welding layer has significant advantages. However, due to the local heating of the matrix during the remelting process, the temperature reaches 900°C, which will cause large thermal deformation. Therefore, the scope of use of spray welding has certain limitations. Parts and materials suitable for spray welding are generally:
① Visible parts subject to impact loads require high surface hardness and good wear resistance, such as sandblasting machine blades, crusher tooth plates, excavator bucket teeth, etc.;
② Large wearing parts with relatively simple geometric shapes, such as shafts, plungers, sliders, hydraulic cylinders, chute plates, etc.;
③ Low carbon steel, medium carbon steel (carbon content less than 0.4%), structural steel containing manganese, molybdenum, vanadium total <3%, nickel-chromium stainless steel, cast iron and other materials.
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WEIFANG SEG ELECTROMECHANICAL TECHNOLOGY
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