Manufacturing method for aluminum alloy-steel double metal material used for sliding bearing of multilayer structure

Abstract

The invention relates to a manufacturing method for an aluminum alloy-steel double metal material used for a sliding bearing of a multilayer structure. A steel plate with the two faces being roughened and an aluminum tin silicon-aluminum manganese copper alloy plate brushed up are rolled in a composite mode at one time, and an aluminum tin silicon-aluminum manganese copper-steel double metal sliding bearing material panel with the required aggregate thickness is obtained; monotectic alloy of which possible solidification segregation of a low melting point phase is severer than solidification segregation under the earth gravitational field in deposition alloy is prohibited. All technological processes of smelting and rolling are integrated to a production line, and the technological processes are compact. A product has super wear resistance and corrosion resistance, good occlusion-proof performance and carrying ability and high fatigue strength, and the fatigue strength reaches 100 MPa to 120 MPa; the processing method has high application and popularization value and is extremely suitable for being used in middle-speed or high-speed or middle-load main bearings and connecting rod bearings.

Description

technical field [0001] The present invention relates to IPC International Patent Classification B22D metal casting or casting technology of other substances using the same process or equipment, especially the aluminum alloy-steel bimetal material manufacturing method for multi-layer structure sliding bearings. Background technique [0002] Sliding bearings (sliding bearings), bearings that work under sliding friction. The sliding bearing works smoothly, reliably and without noise. Under the condition of liquid lubrication, the sliding surface is separated by lubricating oil without direct contact, which can also greatly reduce friction loss and surface wear, and the oil film also has a certain ability to absorb vibration. But starting frictional resistance is bigger. The part of the shaft supported by the bearing is called the journal, and the part that matches the journal is called the bearing bush. In order to improve the friction properties of the surface of the bearin...

AI Technical Summary

Problems solved by technology

[0021] The purpose of the present invention is to provide a kind of aluminum alloy-steel bimetallic material manufacturing method that is used for multi-layer structure sliding bearing with low-carbon carbon steel as the matrix, to solve the aluminum-tin-silicon alloy series alloys encountered in the production process and It is difficult to roll and combine steel plates, and the bonding strength between aluminum-tin-silicon alloy and steel plate is low; it makes up for the shortcomings of low fatigue strength and anti-seizing performance of aluminum-based alloy bearing materials in the prior art, and fills in the aluminum-based alloy bimetal with high mechanical properties Blanks in the production of bearing materials