This backing is uesd for CO2 one-side welding of bulbsteel.
本衬垫适用于各种球扁钢对接接头CO2气保护单面焊用。
2
The method of the invention is also suitable for the production of other thin-wall sections such as I-beam, U-beam, flat bulbsteel, angle steel, etc.
本发明方法对工字钢、槽 钢、球扁钢、角钢等其它薄壁型材的生产也十分适用。
3
The results show that V-N microalloying helps to improve section homogeneity of mechanical property for bulb flat steel, especially for strength enhancement in center of bulb.