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弧焊机器人焊缝图象的识别中起到很好的效果。

It has properties of hardening after malleablization,arc welding and impact resistance.It can grind but can not machining demagnitized steel-bonded carbide.

具有加工硬化、电弧烛接和耐冲击的特性，可磨削但不可机械无加工磁性的钢结硬质合金。

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.

对螺旋埋弧焊钢管在生产过程中产生咬边的原因进行了分析,提出了针对这些原因应采取的相应措施。

The contact between welding plate and fixture is treated as constraint in the finite element model of dynamic welding angular distortion simulation for overlayer in CO2 gas arc welding.

摘要采用有限元数值模拟方法研究了CO2气体保护堆焊的角变形动态过程。为了反映夹具和焊接件的接触状态，将夹具和焊件统一建立有限元模型。