导卫板是轧钢厂、钢厂等消耗量很大的易损件之一。导卫板可使轧件顺利地进人轧槽并导出轧槽，或控制轧件按一定方向运动。因此，导卫板是线材生产中的重要部件。由于导卫板使用寿命低，换件频繁，所以直接影响线材产量和人身安全．为此，提高导卫板的使用寿命就成为生产中的关 The guide is a rolling mill, steel mills and other consumables one of the consumables. Guide plate allows the rolling member into the groove and smooth out the rolling groove, or control the rolling movement in a certain direction. Therefore, the guide is an important part of wire production. Due to the low service life of the guide, changing parts frequently, so a direct impact on wire production and personal safety. To this end, to improve the service life of the guide has become the production of the customs