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New high frequency welding spiral fin

New to development of high frequency welding spiral fin tube is currently one of the most widely used spiral finned tube, is now widely used in electric power, metallurgy, cement industry waste heat recovery and petroleum chemical industry, etc. High frequency welding spiral fin tube is in steel strip coil steel tube at the same time, the use of high frequency current skin effect and proximity effect on steel strip and steel pipe surface heating, until the plastic state or melt, the coil steel belt must be under pressure to complete welding. This kind of high frequency welding is a kind of solid-phase welding. It with Mosaic, brazing (or whole hot galvanizing) compared to the method such as whether in product quality (fin welded rate is high, up to 95%), or productivity and automation degree, are more advanced.