ERW Weld Seam Defects: A Diagnostic Order That Saves Time
A tube mill with a weld problem usually gets adjusted in the order the symptoms appear, and the symptoms appear at the welder. So […]
Shear welders, accumulators and strip edge quality – the entry section that decides seam continuity.
A tube mill with a weld problem usually gets adjusted in the order the symptoms appear, and the symptoms appear at the welder. So […]
Half the weld defects blamed on the welder are decided before the strip reaches the first stand. Edge burr, camber and width tolerance are the quiet causes.
An undersized accumulator turns every coil change into a mill stop. Here is the calculation, the three accumulator types, and the mistake that makes a big accumulator behave like a small one.
The joint made at the entry section passes through every forming stand and arrives at the weld point. If defects repeat at a fixed interval, this is the machine to inspect first.