论文部分内容阅读
在伟天领袖毛主席关于无产阶级专政理论,反修防修,安定团结,把国民经济搞上去的号召推动下,上海锅炉厂管子车间于七五年六月份完成了脉冲等离子全位置焊接小口径对接接头的试生产任务,使我厂在管子对接方面又有了一种新的焊接方法。脉冲等离子弧焊应用于小口径全位置焊接是最近发展起来的一种熔焊方法,除具有一般等离子弧焊特点:如温度高,能量密度高外,还比一般等离子弧焊具有较高的热效率,熔池能控制,降低合金钢焊接裂纹倾向,焊接参数可在较大范围内调节的特点,可不加焊丝一次焊成双面成形,焊接速度也比较快的完成优质焊接接头。这种焊接特别适
Under the call of Chairman Mao of Wei Tian leader on the theory of proletariat’s dictatorship, anti-revisionism, stability and unity, and improvement of the national economy, the Shanghai Boiler Factory pipe shop completed the pulsed plasma full position welding of small diameter in June, 1975 The trial production of butt joints, so that I plant in the pipe butt also has a new welding method. Pulse plasma arc welding applied to small-caliber full position welding is a newly developed method of welding, in addition to the general characteristics of plasma arc welding: such as high temperature, high energy density, but also higher than the average plasma arc welding thermal efficiency , The weld pool can be controlled to reduce the tendency of welding cracks in the alloy steel, and the welding parameters can be adjusted in a wide range. The welded joint can be finished without double welding of the welding wire once, and the welding speed is relatively quick. This welding is particularly suitable