In order to optimize the quality design of high-speed rail grinding stones,the grinding wheels with different crosslinking degrees of resin were prepared by adjusting the curing process parameters such as the curing temperature and curing time,to investigate the influence of curing process parameters on the comprehensive performance of grinding stones.The changes in the mechanical properties of grinding stones with curing process were illustrated by compressive test.The differences of grinding properties of grinding stones under different curing processes were quantified by the grinding equipment.Then the surface quality analysis was conducted on the polished grinding wheels and rail samples to evaluate the advantages and disadvantages of the processed surface quality.Finally,the effects of curing temperature and curing time on the properties of the grinding wheels were summarized from the comprehensive evaluation of the mechani-cal properties,grinding properties and rail surface quality after grinding.The results show that in the test range,the in-crease of curing temperature and curing time is helpful to improve the mechanical properties of the grinding stone.With the increase of curing temperature and curing time,the surface quality of rail can be effectively improved after grinding,but the grinding performance of the grinding stone has a tendency to deteriorate.
关键词
钢轨打磨/磨石/酚醛树脂/固化温度/固化时间
Key words
rail grinding/grinding stone/phenolic resin/curing temperature/curing time
维普
万方数据