| abstract |
PURPOSE: To provide a sliding member in which a sliding surface member having a crowning shape sliding surface is bonded to a base material, in particular, a valve driving system part of an automobile engine, and a sliding part such as a cam follower or rocker arm.n n n Composition: The ceramic water (1) forming the sliding surface and the metal base material (2) are bonded to each other, the crowning amount of the sliding surface of the ceramic surface (1) of 0.1 to 0.4% or more of the maximum length, the ceramics ( 1) is a four-point bending strength in accordance with JIS R1601 of 50 kg / mm 2 or more, and the metal base material is mainly steel, preferably at least the surface has a martensite structure, the hardness is H RC > 45, the metal Or having a middle layer, or joining sliding surface members such as crowning ceramics (1) and forming a metal base portion at the same time, or curing the metal base sliding surface by heating after bonding. This is how to do it.n n n Effect: It is possible to provide a sliding part with a large amount of crowning at a low price without generating defects such as cracks. |