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Origin and principle of high frequency welding of welded pipe . High frequency welding originated in the 50s of last century, it is the use of high frequency current generated by the skin effect and the proximity effect, the steel plate and other metal materials butt welding.
Get PriceIn the use of high-frequency heating equipment welding should be carefully adjusted the following points to ensure the best welding. (1) induction coil, whether it is in the 2 or the 3 circle, the width of the A should be controlled at 1~1.2 times the diameter of the welded steel pipe.
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