When we apply welded pipe equipment in practice, especially in its welding technology, we often encounter the problem of seam opening. The so-called seam opening refers to the inability to fully bond the weld seam together, resulting in unqualified product quality. The seam opening of welded pipe equipment is usually several centimeters or even higher. After all, what is the reason for the seam opening of welded pipe equipment during welding?
The first thing we need to know is that the main reason for seam opening in the welding pipe equipment may be material issues, as many materials are made through chemical composition. When we weld, everything follows normal steps. During the entire welding process, the pipes of the welding pipe equipment will crack, which is mainly due to incomplete adhesion of the parent material. This cracking phenomenon is entirely caused by the chemical composition of the raw material.
Another point is caused by the magnetic rod of the welding pipe equipment, which is a physical reason. During the welding process of the welding pipe equipment, the magnetic rod will generate a relatively strong magnetic field, causing the temperature of the welding seam of the welding pipe equipment to reach a very high level in a very short time. As long as the welding seam appears black red and there are no welding sparks, we can determine that the welding seam is caused by the magnetic rod.
