Then use the coil ring machine rolled into a circle, with the electrode to weld the interface firmly, welding mouth to carry out X spectroscopy.
然后用卷环机卷制成圆圈，用焊条把接口处焊接牢固，焊口处要进行X光谱检验。
2
Since the carbon content of these steels is so high, parts made from high carbon steel are normally difficult to machine and weld.
由于碳在这类钢中的含量很高，用高碳钢制作的零件通常很难被加工和焊接。
3
The development procedure of the milling machine on line used in production of weld H type section steel was described in details, including the design idea, structure mode and working principle.