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本文介绍选用高效率的窄间隙PC—MIG/MAG自动焊对石油钻采钢管(钻铤)焊接的成果。文内对新设计的窄间隙PC—MIG/MAG自动焊机、晶闸管可控开关的脉冲弧焊电源,焊层自动计数和显示、窄间隙焊炬的自动提升控制以及焊接的工艺考核试验等予以较详细的论述。
This article describes the selection of high efficiency narrow gap PC-MIG / MAG automatic welding of oil drilling pipe (drill collar) welding results. The new design of the narrow gap PC-MIG / MAG automatic welding machine, thyristor controlled pulsed arc welding power switch, automatic counting and display of welding layer, narrow gap welding torch automatic lifting control and welding process evaluation test to be A more detailed discussion.