在进行工厂热力和动力管道系统改造及安装时,常常遇到一些丝扣连接。大量的管子套丝工作,过去一直是靠人工套丝去完成的。这样,不仅效率低,而且工人劳动强度大。前几年我们制成一台简易套丝机(附图),可提高工效4～5倍,丝扣光洁度可达4。 Some threading connections are often encountered when retrofitting and installing the plant’s thermal and power piping systems. A large number of pipe threading work, in the past has been done by artificial threading. In this way, not only is it inefficient, but it is also labor-intensive. A few years ago we made a simple threading machine (with photos), can improve work efficiency 4 to 5 times, thread finish up to 4.