结果表明，采用合理的焊接工艺能保证背面焊缝焊接质量的可靠性。
The results show that with the reasonable technique, the reliability of welding quality of rear welding can be ensured.
通过对13 -5型马氏体不锈钢焊接接头进行等离子弧清根及碳弧气刨清根的比较，证明等离子弧清根对全焊透焊缝实施背面清根是可行的。
By comparing backgouging of plasma arc with carbon arc to the welded joint of 13-5 martensitic stainless steel, the backgouging of plasma arc is proved feasible for the full penetration weld.
通过控制接近熔点温度的等温线宽度最终实现了对焊缝背面熔宽和熔透的控制。
Control of the penetration and width of the back side weld was then achieved by controlling the width of an isothermal line near the melting point.
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