Plates for producing multi-layer composite bearing shells and machining technology and machining system of such plates

Abstract

The invention provides plates for producing multi-layer composite bearing shells and a machining technology and a machining system of such plates. The plates for producing the multi-layer composite bearing shells can be used for producing the multi-layer composite bearing shells with elasticity, embedability and resistance to wear up to the standard through punch forming by a punch press. A material for producing the multi-layer composite bearing shells consists of a polymer layer, an alloy layer and a low-carbon steel layer sequentially from to top to bottom. The machining system is automatically controlled from sintering and roller forming of dual-alloy plates to preparation of a self-lubricating coating through plate plane spraying and adopts a multistage temperature control curing technology, a cooling technology and a stepless speed-regulating conveyance technology. After those technologies are employed, polymer coating and one bearing shell matrix are higher in bonding strength than curved surface bearing shell spraying, other subsequent treatment is unneeded when the material for producing the multi-layer composite bearing shells is formed prior to forming of the bearing shells, and the coating is less prone to shedding during punch forming and actual use, so that production efficiency is improved and production cost is saved.

Description

technical field [0001] The invention relates to the field of bearing bush processing, in particular to a multilayer composite bearing bush preparation process and a bearing bush preparation material. Background technique [0002] The traditional bearing pad preparation process is to use a bimetallic composite plate with an alloy layer attached to a low carbon steel layer to make a bearing pad base, and add a layer of soft lubrication to the alloy layer of the bearing pad base by electroplating to increase the bearing inside. Surface compliance, embedding, wear resistance. However, the electroplating lubricating layer is a highly polluting processing method, and as the engine power continues to rise, the bearing pad is facing an increasingly harsh working environment. The electroplating lubrication layer is easy to peel off, which will cause the engine to burn the bushing. Therefore, the traditional preparation process of electroplated lubricating layer bearings is gradually...

AI Technical Summary

Problems solved by technology

Since the base of the bearing bush is a curved surface, the process requires uniform spraying, and the running direction of the spray gun must always be parallel to the surface of the object to be sprayed during spraying. Therefore, this spraying process is cumbersome to operate, low in production efficiency, and requires auxiliary tooling for spraying assistance.

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