Knowledge required for welding of welded steel pipe
Sources: this site Click: Date: 2015-10-27 19:1:33
Welded steel pipe, also known as welded pipe, steel pipe is welded with steel plate or steel strip after forming. Welding steel pipe production process is simple, the production efficiency is high, the variety specification is much, the equipment investment is little, but the general strength is lower than the seamless steel tube. Since 1930s, along with the rapid development of high quality strip mill and the progress of welding and inspection technology, the quality of the welding seam has been improved, the varieties of welded steel pipe are increasing. According to the form of welded steel pipe weld is divided into longitudinal and spiral welded pipe. Straight welded pipe production process is simple, high production efficiency, low cost, rapid development. Strength of spiral welded pipe is usually better than straight seam welded pipe is high, can use a narrow diameter of billet production larger pipe can also differ with the same width of the billet production diameter pipe. But with the same length of straight pipe, weld length of 30~100%, and the production rate is low. Therefore, most of the small caliber pipe welded, large diameter welded pipe mostly using spiral welding.
