Production of multi-layer metal bush tile spreading materials
A multi-layer metal and production process technology, which is applied in the production field of manufacturing multi-layer metal bearing tile expansion materials, can solve the problems of increased processing cycle, labor cost, environmental pollution, etc., to improve the bonding force and fastness, and eliminate pollution Environmental problems, economic and technical benefits are remarkable
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[0016] First weld a layer of copper (Cu) on one face of the expanded flat steel material (this steel material can be made according to the length and shape required by the bearing pad) used as the half garden bearing tile, and the welding method can be used Laser welded to make a steel lining with a welded copper layer. Put the steel lining with the soldered copper layer in the mold cavity, spread the pure copper powder evenly on the surface of the soldered copper layer on the steel back, and then evenly spread a layer of copper alloy powder (the copper alloy composition is lead 19%, tin 6%, copper 75%) and put into a protective atmosphere sintering furnace together with the mold, and sinter at a temperature of 870°C for 25 minutes. The composition of the protective atmosphere is 30% nitrogen and 70% hydrogen. After sintering, when it is cooled to 700 ° C, it is placed on an axial swing rolling machine, and the two loose sintered layers ...
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