QPQ surface treatment technology
Category：
Construction Machinery
We specialize in the production of various types of connecting pins, bolts, flanges, fishtail plates, etc. for construction machinery, agricultural machinery, coal mining machinery, hydraulic aerial cages, road construction machinery, as well as docks and harbors, wind power and other supporting products. We are particularly specialized in QPQ surface treatment technology.
After salt bath composite treatment, in order to reduce the surface roughness of the workpiece, a polishing process can be performed on the surface of the workpiece, followed by an oxidation process in the salt bath. This is very necessary for precision parts and workpieces with high surface roughness requirements. It is referred to as QPQ salt bath composite treatment technology in China. The QPQ salt bath composite treatment technology can significantly improve the wear resistance and corrosion resistance of metal surfaces, while the workpiece hardly deforms. It is a new metal surface strengthening and modification technology. This technology achieves the combination of nitriding process and oxidation process; Composition of nitrides and oxides; Composite of wear resistance and corrosion resistance; The combination of heat treatment technology and anti-corrosion technology.
The QPQ salt bath composite treatment technology was invented by a German company in the 1970s. After decades of continuous development and improvement, its application scope has become wider and wider. Therefore, it is considered a huge progress in the field of metal surface strengthening technology abroad and is called a new metallurgical method. The QPQ salt bath composite treatment technology has also been widely promoted and applied in China, especially in automobiles, motorcycles, axle products, electronic parts, textile machines, machine tools, electrical switches, and molds, with outstanding results.
Keywords: QPQ, ternary infiltration, connecting pins, bolts, flanges, fishplates
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