直流电焊机上的电刷是一个容易磨損的零件;磨損过多,高度不够,就需要更换新的来用。每台电焊机每年消耗的电刷很多。我厂电工奚明发、薛觉初兩同志建議利用廢电刷,以节省电刷的消耗。現在把他們采用的方法介紹如下: 在廢电刷有辮子綫的端剖,用鋸鋸成鳩尾槽;另外用銅板弯成冂形銅套紧压在鳩尾槽内,以增加电刷端部的長度,使电刷架彈簧在电刷上保持有正常的压力。附图表示銅 DC brush on the welder is a wear-prone parts; excessive wear and tear, height is not enough, you need to replace the new use. Each brush consumes a lot of brushes per year. I plant electrician Xi Mingfa, Xue Jue early comrades suggested the use of waste brushes to save brush consumption. The method that they adopt is introduced as follows now: Use the end of the braided wire of the waste brush to cut the dovetail with sawing; In addition, use the copper plate to bend into the dove-shaped copper sleeve to squeeze in the dovetail groove, in order to increase the brush end Length, the brush holder spring to maintain normal pressure on the brush. The figure shows copper