目前各类矿山设备,磨损报废的零件的数量和品种是相当惊人的。例如斗轮挖掘机的铲齿,一般寿命是一个班,个别的斗齿一两个小时就报废。 最近,在苏联、西德、日本、美国,耐磨材料堆焊成了一个热门技术。矿山维修车使用较简便的堆焊设备,经济效益较为显著,国内也正在逐步采用。 At present, all kinds of mining equipment, wear and tear of the number of scrap parts and varieties is quite amazing. For example, bucket wheel excavator shovel teeth, the general life expectancy is a class, individual bucket tooth scrapped within an hour or two. Recently, surfacing of wear resistant materials became a hot technology in the Soviet Union, West Germany, Japan and the United States. Mine maintenance vehicles using simpler surfacing equipment, more significant economic benefits, the country is also gradually adopted.