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IFA-W50载重汽车发动机曲轴,是一个重要部件。由于发动机的运转而引起曲轴轴颈和曲柄轴颈越来越大的磨损,致使需更换一根新曲轴。为了节约资金,提出堆焊修复新工艺,对已磨损轴颈加以修复后重新使用。堆焊的准备工作:曲轴材料为40Cr4或40Cr4V,曲轴承受动载荷和摩擦。为此,要求进行调质处理和轴颈表面的淬火处理。修复是采用熔化极自动氩弧焊工艺。选直径1.2毫米的DUR650-IG或WKZ50-IG堆焊
IFA-W50 truck engine crankshaft, is an important component. Crankshaft journals and crankshaft journals are increasingly worn by engine operation, necessitating the replacement of a new crankshaft. In order to save money, put forward a new welding surfacing process, to repair the worn journal re-use. Surfacing preparations: Crankshaft material 40Cr4 or 40Cr4V, crankshaft bearing dynamic load and friction. For this reason, require quenching and tempering of the journal surface. Repair is the use of melting electrode automatic welding process. DUR650-IG or WKZ50-IG surfacing with a diameter of 1.2 mm was selected