热轧机轧辊失效分析及对策  

Failure Analysis and Countermeasure About Roller for Hot Rolling Mill

作　　者：那顺桑[1] 张自立[2] 宫开令[2] 高春利[2] 胡冰[1] 

机构地区：[1]河北理工大学冶金与能源学院河北省现代冶金技术重点实验室,唐山063009 [2]唐山联强冶金轧辊有限公司,唐山063300

出　　处：《理化检验（物理分册）》2009年第2期108-110,共3页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：Cr-Ni-Mo无限冷硬Ⅳ材料轧辊在使用中出现了工作层剥落和炸裂的现象,经现场取样分析,并在实验室进行了系列温度的时效工艺试验和耐磨性试验的基础上确定了该材料热处理条件与性能之间的关系。无限冷硬Ⅳ材料轧辊经过(425±5)℃去应力处理后,可以得到最佳性能配合和使用效果。使轧制带钢的宽度增加了10%以上,即解决了生产中的轧辊质量问题,又为用户增加产品规格提供了条件,具有推广价值。In the field usage, there are many inactivation problem on the Cr-Ni-Mo chilled iron Ⅳ roller. By the sampling and analysis in the field, based on the laboratory experiments which included the series temperatures aging tests and the abradability tests, finally, established the relation on the heat-treatment condition and the property. By the stress relieving under the heat-treatment of the temperature, （425 ± 5）℃, the Cr-Ni-Mo chilled iron Ⅳ composite roller can obtain the optimal property adaption and usage effect. That makes the width of rolling strip steels increased by more than 10%, then solve the quality problems of roller in the practice production and provide the conditions to increase product specifications for the user, affirmed by the user.

关 键 词：Cr-Ni—Mo无限冷硬Ⅳ材料轧辊 时效工艺 耐磨性 热疲劳 

分 类 号：TG333.17[金属学及工艺—金属压力加工]