Discussion on high frequency induction welding of stainless steel pipe

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The high-frequency induction welding process is currently a commonly used welding process in the field of pipelines. Its high efficiency and environmental protection characteristics have attracted the favor of many pipe welding producers and have been widely used. In practical applications, high-frequency straight-seam induction welding was originally applied to the welding of ordinary carbon steel, that is, the welding application of ordinary materials.
With the maturity of high-frequency induction welding technology and the technological advancement of high-frequency welding machine power supply, the current high-frequency straight-seam induction welding technology has been applied to the welding of some special materials, including aluminum alloy, copper, stainless steel and other metals The pipeline welding of materials provides pipeline manufacturers with a new way to manufacture products and innovates the traditional production technology of some products.
Principle and application of high frequency induction welding
Whether the welding material is ordinary carbon steel or special material, the principle of high-frequency straight-seam induction welding application is unchanged. The skin effect of high-frequency eddy current is formed on the surface of the steel strip using high-frequency magnetic field, and the forming mechanism of the unit The proximity effect of the V-shaped angle area formed by the welding area causes high-frequency current to converge to the edge of the steel strip. Finally, the edges of the heat-gathering steel belt are bonded by squeeze rollers to achieve welding.
High frequency induction welding is a classic resistance welding, which uses alternating current with a frequency of 100 kHz and above to heat the edges of the material and bond them. This process is used for continuous welding of seamed products, such as H-shaped steel welding, continuous welding of straight seam welded pipes, spiral fin welding, and pipe welding of core materials.
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