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101型转向架轴箱体焊修后内径与“段规”不符,水平方向超差-0.04～0.10mm。这是因为段修时轮箱体外部滑槽内的磨耗板为段焊,焊后滑槽中部向内弯曲变形所致。过去我段曾采用车床车削的方法,但此法易使轴箱体内径接近或达到最大极限尺寸,下一个段修轴箱就可能报废。后来,我段采用手锤敲击轴箱滑槽磨耗板焊缝,消除了原内径在水平方向超差的现象。
The inner diameter of the 101 bogie axle box body welded does not match the “section gauge”, and the horizontal deviation is -0.04 ~ 0.10mm. This is because when the segment repair wheel box outer wear of the chute plate segment welding, welding chute inward bending deformation caused. In the past I had lathe turning method, but this method is easy to make the shaft diameter approaching or reaching the maximum limit size, the next paragraph repair the shaft box may be scrapped. Later, I use the hand hammer to hammer the wear of the shaft box chute weld, eliminating the original diameter of the phenomenon of over-size in the horizontal direction.