How is High frequency resistance welding spiral finned tube production line work?
The high-frequency welding production line of spiral finned tube produced is a single loop high-frequency spiral finned tube welding production line. It is a finned tube welding equipment independently developed according to the requirements of Maoming Petrochemical Machinery Plant for welding stainless steel and alloy steel finned tubes, based on the experience and theory of finned tube welding technology, and referring to similar foreign products. The so-called single loop is to change the original dual loop (or three loop), inductive coupling high-frequency finned tube induction heating equipment into a single loop, capacitive coupling high-frequency finned tube induction heating equipment. The product specifications are 100KW, 200KW and 300KW. In addition, in the winding, forming and welding of finned tubes, our company has made significant technical improvements with reference to foreign imported equipment. At present, the complete set of high-frequency finned tube welding equipment for single circuit and improved finned tube winding forming is exclusively produced by our company in China. The equipment has been used and operated by users for many years, with stable performance and advanced technology, and has been trusted and praised by all users.
The spiral fin tube equipment produced by our company has been exported to Türkiye, Malaysia and other countries. It created a precedent for Chinas high-frequency welding production line of spiral finned tubes to be exported to foreign countries.
Advantages use high frequency welding machine to weld finned tube
High frequency welding machine welding uses the skin effect and proximity effect unique to high frequency current, so that the welding current is concentrated on the surface layer of the contact, the temperature of the surface joint surface rises quickly, and the surface to be welded is heated to a molten or near molten plastic state , then quickly extruded into a joint welding method.
This welding method has a series of advantages: the heat-affected zone of the weld is small, and the heating speed is fast, which can greatly improve the welding speed and weld quality of the frequency welding machine, and can use strip steel without pickling, shot peening and trimming as a blank At the same time, it can weld alloy steel, high alloy steel and non-ferrous metal pipes, greatly reducing the unit power consumption. A set of welding equipment can be used to produce various metal welded pipes. For different metals, it is only necessary to change the welding power and welding speed accordingly.
Welding speeds of up to 100-120 m / min. Such high welding speeds and beveled molten metal layers allow welding of light alloy, stainless steel, copper, brass, zirconium and other metal pipes without protection.