Production of multi-layer metal bush tile spreading materials
A multi-layer metal, production process technology, applied in the direction of bearing components, shafts and bearings, mechanical equipment, etc., can solve problems such as labor-intensive, low degree of metallurgical integration, environmental pollution, etc., to eliminate environmental pollution problems and save non-ferrous metal materials , Remarkable economic and technical benefits
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[0016] First, a layer of copper (Cu) is welded on one surface of the unfolded flat steel material (the steel material can be made according to the required length and shape of the bearing bush) used as a semi-circular bearing tile, and the welding method can be laser light. Welded to make a steel lining with a welded copper layer. Put the steel lining with the soldered copper layer in the mold cavity, evenly distribute the pure copper powder on the surface of the soldered copper layer of the steel back, and then evenly apply a layer of copper alloy powder (the copper alloy composition is 19% lead, 6% tin, 75% copper) and put it into a protective atmosphere sintering furnace together with the mold, and sintered at a temperature of 870 ° C for 25 minutes. The composition of the protective atmosphere was 30% nitrogen and 70% hydrogen. After sintering, when it is cooled to 700 ℃, it is placed on an axial swing rolling machine, and the two loose s...
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