摘要
GB/T18254-2002标准规定:"供热加工用球化退火钢材不检查碳化物网状",而我国目前各大钢厂生产的较大直径GCr15轴承钢普遍存在碳化物网状超标状况,所以各热轧、热镦轴承钢球球坯的企业,必须通过自行生产工艺控制球坯内部碳化物网状达标。本文通过分析试验,确定热轧轴承球坯碳化物网状达标的工艺方法及达标条件。
GB/T18254-2002 standard stipulates that ＂ carbide mesh of spherical annealing steel for heating processing is not checked ＂, at present, the large diameter GCrl5 bearing steel produced by major steel mills in China are generally in the condition of carbide mesh exceeding standard, therefore, each of the enterprises of hot-rolled, hot-upsetting bearing steel ball billet must controlled the internal carbide mesh of the ball billet up to standard through its own production process. In this paper, the technological method and the standard condition of keeping the carbide mesh of the hot rolling bearing ball billet up to the standard are determined by the analysis and test.
出处
《哈尔滨轴承》
2017年第4期17-19,共3页
Journal of Harbin Bearing
关键词
球坯热轧工艺
碳化物网状组织
钢球冲击韧性
钢球疲劳强度
ball billet hot rolling process
carbide mesh structure
steel ball impact toughness
fatigue strength of steel ball
