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我厂生产的驳船连接销外环弹簧(见图)材料为60Si2Mn,过去是将零件摞成一摞放在吊架上淬火,油冷时冷却不好,工件硬度不均匀,且有软点,质量达不到要求。后来改为两个弹簧中间垫上一个铁丝煨成的圆圈再
The barge connecting rod outer ring spring (see photo) made by our factory is made of 60Si2Mn. In the past, the parts were stacked on a hanger and quenched. When the oil was cold, the cooling was not good. The hardness of the workpiece was not uniform. Not meet the requirements. Later replaced by two springs in the middle of a wire simmering into a circle again