non-preheat相关论文
A new type of non-preheated hardfacing electrode was developed using H08A as the core and the coat contents including fe......
A new type of non-preheated hardfacing electrode was developed using H08A as the core and the coat contents including fe......
研究了T91钢薄壁管的焊接工艺，通过理论分析和模丰以工况试验说明，对于T91钢薄壁管的焊接，采用GTAW方法，不进行焊前预热，焊后时效处理，焊......
