我厂生产的各种钢管家俱几乎都需要焊接,焊接量很大。为此,我们研制了一台三相整流电阻焊机,用于不同规格的薄壁钢管丁字焊。生产实践表明,三相整流电阻焊机除了用在钢管闪光对焊外,还可以进行大功率的点焊和凸焊。这种焊机具有效率高、功率大、规范调节宽及三相用电,因而对电网 I plant a variety of steel pipe furniture almost all need to be welded, a large amount of welding. To this end, we have developed a three-phase rectifier resistance welding machine, for different specifications of thin-walled pipe T-shaped welding. Production practice shows that, in addition to three-phase rectifier resistance welding machine used in steel flash butt welding, but also for high-power spot welding and projection welding. This welding machine with high efficiency, large power, regulate the wide and three-phase power, thus the power grid