back gouging

基本解释

The invention is used for automatic air gouging back gouging of the straight welding line and the girth welding line of the large cylindrical welding structure.
本发明用于大型圆筒形焊接结构的直焊缝和环行焊缝自动气刨清根。
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A welding backing with sand mould has been invented to realize welding penetration, which fully takes the place of gouging back chipping which has all kinds of shortcomings and disadvantages.
研究发明的“背衬砂垫焊接工艺”能够非常容易地实现焊透的目的，可以完全取代落后的碳弧气刨清根工艺，克服了目前常用的碳弧气刨清根所带来的缺点、弊病和不足。