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刮板机中板焊接时由于组对间隙大,导致焊接操作难度大,影响焊接效率,焊缝强度低。分析认为是中板下料尺寸、铸造槽帮尺寸和焊接收缩余量产生的误差叠加所致。中板下料编程时预留一定余量以补偿割坡口损耗和抵消焊后收缩变形,可以将间隙控制在工艺要求范围内,改善焊缝质量,节约焊丝消耗,提高焊接效率27.3%。
Due to the large gap between the pair of scraper plate welding machine, resulting in difficult welding operation, affecting the welding efficiency, weld strength is low. Analysis of the plate is expected to feed size, casting tank to help size and shrinkage caused by welding error caused by superposition. In the middle of the plate cutting programming reserve a certain margin to compensate for cutting groove loss and offset welding shrinkage deformation, the gap can be controlled within the process requirements, improve the quality of the weld, saving wire consumption and improve the welding efficiency of 27.3%.