我矿从1994年投产后，特别是经1997、1998两年大生产后，电动挖掘机的炉斗因磨损报废已达6个。主要是因铲斗的斗前臂斗栓孔附近磨损严重，而斗前臂、斗后曾完全可以继续使用a1修补方案根据斗前臂磨损情况，铸造一个补丁（材质同母材ZGMnl，补丁尺寸要树斗前臂的具体磨损情况而 After mine started operation in 1994, especially after large-scale production in 1997 and 1998, the electric excavator’s furnace bucket has reached 6 due to wear and tear. Mainly because of bucket bucket arm near the front of the bucket hole heavy wear and tear, and the bucket forearm, bucket after the full can continue to use a1 repair program under the forearm wear, cast a patch (material with the parent material ZGMnl, patch size to the tree bucket Forearm specific wear situation