Typical frequency welded pipe flow: uncoiling - strip leveler - head and tail cut - strip butt - Looper material storage - Forming - Welding - clear the glitch - Sizing - testing - fly cut - initial inspection - Tube Straightening - pipe processing - hydrostatic testing - flaw detection - printing and coating - finished. Welding speed of the welding process of the main parameters, which the heating system, the welding speed and the deformation speed of each crystal.
In the high-frequency welded pipe, the weld quality welding speed with the acceleration of progress. This is because the heating time can be shortened to narrow the width of the heating zone edge, reducing the time of forming a metal oxide, if the welding speed is reduced, not only the heating zone widened, and the width of the melting zone with the heat input and change, the formation of within the burr bigger. In low-speed welding, heat input less difficult to weld, do not meet the specified value prone to defects.
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