Solid solution sintering method of copper alloy steel piece and sintering of compressor swash plate

Abstract

The invention discloses a solid solution sintering method of a copper alloy steel piece and sintering of a compressor swash tray and aims at providing the solid solution sintering method of the copper alloy steel piece and sintering of the compressor swash tray which are simple in process, high in production efficiency and easy to control in quality. The steel piece can be put in a die which is made of graphite. Copper alloyed powders can be covered and scattered on the surface of the steel piece of a copper alloy layer which needs sintering so that the surface of the steel piece of the copper alloy layer is covered with the copper alloyed powders. The graphite die which is provided with the copper alloy powders and the steel piece is put in a heating furnace for heating. The heating temperature is 1100 DEG C +/- 50 DEG C. The time of insulation is 2-3 hours. The copper alloy powders are completely melted. After cooling, the graphite die can be demoulded so that the firmly bonded copper alloy layer is formed on the surface of the steel piece, wherein the surface of the steel piece is covered with the copper alloyed powders. The method has the advantages of being high in bonding strength, simple in manufacturing process, high in production efficiency, low in manufacturing cost and good in product quality.

Description

technical field [0001] The invention relates to a composite method of two metal materials, in particular to a composite sintering method of a copper alloy and a steel piece and the sintering of a compressor swash plate. Background technique [0002] Most of the traditional sliding bearings are cast into flat plates or shaft sleeves with copper alloy, and then processed by cutting. Replaced by so-called bimetal bearings. The current manufacturing method of bimetallic bearings is to use steel as the matrix, evenly spread copper alloy powder on the upper surface of the steel part, and make it have a certain spreading thickness; then heat together to make the surface of the copper alloy powder semi-melt The state of the copper alloy powder and the copper alloy powder and the steel matrix are combined, which is called sintering, and then the density of the surface copper alloy is improved by rolling, and its thickness is controlled to form a copper-steel bimetallic bearing mater...

AI Technical Summary

Problems solved by technology

However, for multiple surfaces of the steel substrate, such as the front and back sides or sides covered with copper alloy, it is necessary to sinter the copper alloy multiple times, and the process is very complicated and the quality is difficult to control.

For example, the swash plate of the compressor of the automobile air-conditioning system is covered with a copper alloy layer on both the front and back sides, so the front and back sides need to be divided into two times. The sintering and rolling process is complicated and the production efficiency is low.

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