关键词: 复合轧制, 界面特性, 真空度, 表面粗糙度

Abstract: Influences of vacuum degree, temperature and surface roughness on compound effectivenesses in ultra heavy plate clad rolling were studied herein. Experiments of vacuum degree and temperature's influences on the compound effectivenesses were conducted on a thermal simulation test machine, while experiments of surface roughness's influences on the compound effectivenesses were carried out on a 2-h mill based on equivalent deformation method. Research results show that the effects of vacuum degree and temperature on the compound effectivenesses of heavy plate rolling are obvious, it is beneficial to improve the compound effectivenesses by increasing the vacuum degree and temperature. The effects of surface roughness on the compound effectivenesses of heavy plate rolling are also obvious, and the smaller roughness enhances the compound effectsivenesses. Because the costs of production increase exponentially as the roughness levels up, in the actual production the roughness may be decrease properly.

Key words: ultra heavy plate clad rolling, interface characteristics, vacuum degree, surface roughness