在毛主席“工业学大庆”的伟大号召下,工程机械在矿山、采掘、农田水利、建筑筑路、交通运输以及国防施工建设中,发挥越来越大的作用。由于野外施工工作条件恶劣,工程机械易损件磨损非常严重,因此,提高其使用寿命是当前最迫切的任务。采用耐磨堆焊是提高寿命的有效方法之一。用堆焊焊条修复已报废的零件,其成本仅为新零件的10～14％,且耐磨性比新零件还高,又不需特殊设备。这种方法可节约大量钢材、简化配件供应、减少停机时间、降低零件成本。耐磨堆焊还可以制造双金属零件,提高耐磨性、省约贵重合金金属。所以,耐磨堆焊 Under the great call of Chairman Mao’s “Daqing Industrial”, construction machinery has played an increasingly important role in the construction of mines, mining, farmland and water conservancy, building roads, transportation and national defense construction. Due to the poor working conditions in the field construction, wearing parts of construction machinery are very worn. Therefore, it is the most urgent task to improve the service life of construction machinery. Wear-resistant surfacing is one of the effective ways to increase life expectancy. With the surfacing electrode repair scrapped parts, the cost is only 10 to 14% of the new parts, and wear resistance than the new parts is high, without special equipment. This method can save a lot of steel, simplify the supply of parts, reduce downtime and reduce parts costs. Wear-resistant surfacing can also create bimetallic parts, improve wear resistance, save the expensive alloy metal. So, wear-resistant surfacing