The original guide fittings,which fixedly combined with the rolling mill,because of long drive chain and many fixed points,usually become flexible and seizing,bring on rolling accident.

• 由于导卫装置采用传统连接方式与轧机紧固一体,因传动链长、固定支点多,在生产中经常出现松动、卡死等现象,诱发轧制事故。