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为了满足小直径内孔和窄间距耐磨工作面能采用先进的粉末等离子堆焊工艺的需要,我院焊接教研室张树生、洪秋华、董晓强等同志设计并研制的小内孔粉末等离子堆焊枪已获得成功。它为原来不能采用粉末等离子堆焊工艺的小内孔和窄间距受磨件的制造和修复开辟了新途径;并促使此种焊枪的结构设计和制造工艺更为合理、简便。 这种SY-1型小内孔粉末等离子堆焊枪,高39mm,外径28mm,工作电流可达250安培,可
In order to meet the needs of the advanced powder plasma surfacing process for the small-diameter boreholes and the narrow-gap wear-resistant work surfaces, the small internal-hole powder plasma torch gun designed and developed by Zhang Shusheng, Hong Qiuhua, Dong Xiaoqiang and other comrades of the welding department of our hospital has been successful . It opens up new avenues for the manufacture and repair of small boreholes and narrow spacing abrasives, which could not be achieved by powder plasma surfacing, and has led to a more rational and simpler structural design and manufacturing process for such guns. The SY-1 type small bore powder plasma torch welding gun, high 39mm, diameter 28mm, the working current up to 250 amps, can