Composite cylinder jacket and manufacturing method

Abstract

A composite cylinder jacket is featured as using alloy cast ¿C iron layer as internal layer of cylinder jacket and using cast ¿C steel layer as external layer, setting pure copper combination layer between alloy cast ¿C iron layer and cast ¿C steel layer for connecting these two layers. Its preparing method is the same to cold processing technology, heating and chemical treatment technique and outline size in method for preparing universal cylinder jacket in addition to casting technique.

Description

technical field [0001] The invention relates to an engine cylinder liner. Background technique [0002] Most of the existing wet cylinder liners of internal combustion engines are made of cast iron, which has a disadvantage of high brittleness. During use, cracks and breakages often occur, which are likely to cause major accidents; the advantages of cast iron materials are good manufacturability, wear resistance, and The platform texture is processed, which is beneficial to shorten the running-in period. When the machine is working, a certain amount of lubricating oil can be retained in the texture, which provides good lubrication conditions for the normal operation of the machine. There are also cylinder liners made of steel, which has the advantages of good reliability and is not prone to cracks and fractures. The disadvantages are poor workmanship, high processing costs, difficult to process platform texture on the inner wall, poor oil storage capacity, and poor lubricati...

AI Technical Summary

Problems solved by technology

[0002] The existing wet cylinder liners of internal combustion engines are mostly made of cast iron, which has a disadvantage of high brittleness. During use, cracks and breakages often occur, which are likely to cause major accidents; the advantages of cast iron materials are good manufacturability, wear resistance, and The platform texture is processed, which is beneficial to shorten the running-in period. When the machine is working, a certain amount of lubricating oil can be retained in the texture, which provides good lubrication conditions for the normal operation of the machine.

Some cylinder liners are made of steel, which has the advantages of good reliability and is not prone to cracks and fractures. The disadvantages are poor workmanship, high processing costs, difficult to process platform texture on the inner wall, poor oil storage capacity, and poor lubrication. it is good

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