弧焊

Utilized this method to segmentalize the image of oil derrick arc welding robot welding line gets up the good effect.

将该方法运用于石油井架器人缝图象识别中起到很好效果。

The purpose of prebending process of longitudinal submerged arc welding pipe production line is introduced;character of roller prebending and mould press type prebending is analyzed.

对螺旋埋钢管在生产过程中产生咬边原因进行了分析,提出了针对这些原因应采取相应措施。