Welding speed of high frequency welded pipe

High-frequency welded pipe typical process: uncoiling - straightening of steel strip - head and tail shear - strip welding - sleeve storage - forming - welding - clear glitch - sizing - flaw detection - flying cut - initial inspection - pipe seal processing - water pressure test - flaw detection - printing and coating - finished products.

Welding speed is one of the main parameters of the welding process, which is related to the heating system, the deformation rate of the weld and the speed of mutual crystallization.

In the high-frequency welded pipe, the welding quality with the welding speed to accelerate and improve. This is because the heating time is shortened to narrow the width of the edge heating zone and shorten the time for forming the metal oxide. If the welding speed is reduced, not only the heating zone is widened, but also the width of the melting zone changes with the change of the input heat Burr is larger. In the low-speed welding, the input heat less welding difficult, if not meet the specified value is easy to produce defects.