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大多数的修理企业,采用各种堆焊方法修复曲轴。众所周知,堆焊时可以看到显著的热影响,造成曲轴翘曲,甚至使其长度缩短。因此,采用这种方法修复的曲轴寿命显著地低于新的曲轴,尤其是在疲劳强度方面。切利亚宾斯克农业机械化电气化研究所和科尔金诺汽车修理厂共同研制出一种金属粉末电接触加热法修复曲轴轴颈新工艺。该修复方法的实质是,以电接触加热,将熔结的金属粉
Most repair companies use a variety of surfacing methods to repair crankshafts. It is a well-known fact that significant heat effects can be seen during surfacing, causing the crankshaft to warp or even shorten its length. Therefore, the life of the crankshaft repaired with this method is significantly lower than that of the new crankshaft, especially in terms of fatigue strength. Chelyabinsk Institute of Mechanization of Agricultural Mechanization electrification and Kolkino automobile repair shop jointly developed a metal powder electrical contact heating method to repair the crankshaft journal new technology. The essence of this repair method is to electrically contact with the heated metal powder that will be sintered