Multi-layer metal plate for thin-wall sliding bearing

The invention discloses a multi-layer metal plate for a thin-wall sliding bearing. The multi-layer metal plate comprises a first structural layer, an interlayer and a second structural layer, wherein the first structural layer is attached to the upper surface of the interlayer, and the second structural layer is attached to the lower surface of the interlayer. According to the technical scheme, test results verify that an aluminum (or aluminum-copper alloy) coating layer with a thickness of 5-10 micrometers obtains an intermediate phase transition layer with a thickness of about 3 micrometers under a certain technological condition, an aluminum intermediate layer is well combined with a steel substrate, the bonding strength of a steel/copper interface can be improved through a multi-layer alloy structure and a continuous casting and rolling method, and due to the fact that the liquid-phase copper alloy diffuses into the steel substrate more quickly and is higher in solubility, the liquid-phase composite steel