陶瓷球和钢球接触疲劳寿命对比试验  

Comparing Test for Contact Fatigue Life of Ceramic Balls and Steel Balls

作　　者：周井玲[1] 吴国庆[1] 李松生[2] 陈晓阳[2] 

机构地区：[1]南通大学机械工程学院,江苏南通226007 [2]上海大学轴承研究室,上海200072

出　　处：《轴承》2006年第10期25-27,共3页Bearing

基　　金：上海市科技发展基金重点项目(0152nm031);江苏省教育厅自然科技基金项目(05KJB460106);南通市青年学术带头人带课题进修计划项目(Z5005);南通大学自然科学基金项目

摘　　要：陶瓷球的滚动接触疲劳寿命是评价陶瓷球能否用于滚动轴承的重要依据,为了确保陶瓷球的可靠性,最大限度地延长其使用寿命,利用新研制的三点接触纯滚动加速疲劳试验机对陶瓷球和钢球进行了对比试验。结果表明,与GCr15钢球相比,氮化硅陶瓷球的温升明显低于钢球;额定寿命低于钢球,中值寿命与特征寿命优于钢球。The RCF life of ceramic balls is an improtant parameter to evaluate whether the balls are suitable to rolling bearings. In order to ensure the reliability of ceramic balls and prolong their fatigue lives, a newly developed pure rolling accelerative fatigue test rig with three- point contact is used to perform the comparing test for ceramic balls and steel balls. It is concluded that the temperature rise and the rated life of silicon nitride ceramic balls are lower than those of steel GCr15 balls, but in terms of median life and feature life,the former is superior to the latter.

关 键 词：滚动轴承 氮化硅 陶瓷球 钢球 对比试验 

分 类 号：TH133.33[机械工程—机械制造及自动化] TQ174.758[化学工程—陶瓷工业]