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Zhou
It is a metal surface modification equipment independently developed by our company with completely independent intellectual property rights. The surfacing welding process is to improve the resistance of the metal surface. One of the effective technical methods to improve abrasion, corrosion resistance, impact resistance and other properties.
Plasma powder surfacing uses a plasma arc as a heat source. The high temperature generated by the plasma arc is used to rapidly heat the alloy powder and the surface of the substrate, melt them together, mix, diffuse and solidify. After the plasma beam leaves, it self-cools to form a layer of high performance. Alloy layer, thereby realizing the surfacing process of strengthening and hardening the surface of the part. Since the plasma arc has a high arc temperature, high heat transfer rate, good stability, and strong controllability of penetration, by adjusting the relevant surfacing parameters, the surfacing can be The thickness, width and hardness of the layer can be freely adjusted within a certain range. After plasma powder surfacing, a fusion interface is formed between the base material and the surfacing material. The bonding strength is high and the surfacing layer has a dense structure and good corrosion resistance and wear resistance. The dilution of the base material and the surfacing material is reduced, and the material properties change little. Use powder as a Surfacing materials can improve the selectivity of alloy design, especially the ability to smoothly surfacing refractory materials and improve the wear resistance, high temperature resistance and corrosion resistance of the workpiece.
Technical advantages
The cladding alloy layer is metallurgically bonded to the workpiece substrate, and the bonding strength is strong
The cladding speed of cladding is fast, and the dilution rate of plasma arc cladding can be controlled at a low dilution rate. , or lower
The surfacing layer has a dense structure and beautiful shape. The surfacing process is easy to be mechanized and automated
Plasma deposition can be directly performed on the surface of corroded and oily metal parts without complicated pre-treatment process
/> Compared with other plasma spray welding equipment, the structure is simple, energy-saving, easy to operate, and easy to repair and maintain
The plasma arc temperature is high, the energy concentration is good, and the residual stress and deformation caused on the workpiece are small.
Good controllability. The gas type, flow rate and arc spray parameters can be changed by changing the power, thereby achieving efficient automated production and improving labor productivity.
Wide range of materials used. As a deposited material, cladding alloy powder is not restricted by casting, rolling, wire drawing and other processing techniques. Alloy powders of different compositions can be configured according to different performance requirements. It is especially suitable for hard wear-resistant alloys that are difficult to wire but easy to powder. , to obtain the surfacing layer with the required performance.
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