摘要
针对大型支承辊采用堆焊修复而使辊面组织不均匀的问题,采用了支承辊镶套修复技术,根据支承辊的使用情况设计镶套轧辊的配合直径及联接过盈量,根据配合直径及过盈量确定热装温度,保证安装顺利进行。支承辊镶套修复后,镶套轧辊联接紧固,可以满足支承辊使用性能。实际使用中效果良好。
An overhaul process of back-up roll repaired with bushing method is introduced in this paper to overcome the nonuniformity of the roll surface texture, caused by bead weld on the surface of heavy back-up roll. The fit diameter and shrink fit are designed according to the wear condition of back-up roll. Then the hot charging temperature is decided, which makes sure this process successful. With this technology, the sleeve clamps tightly around roll, with which the back-up roll is able to meet the requirement of application. The result was confirmed by actual use.
出处
《重型机械》
2012年第4期92-94,共3页
Heavy Machinery
关键词
支承辊
辊面修复
镶套
back-up roll
roll surface repair
bushing
