What is the principle of high frequency induction welding machine?

【Summary Description】 Induction welding What are the uses of high frequency induction welding machine? What is the principle of high frequency induction welding machine? High frequency welding machine can be used for welding of various metal materials, and can also be used for diathermy, melting, heat treatment and other processes. Welding is just one of its many uses. Introduction to Induction Brazing Induction welding has low requirements for human operation, controllable welding process, good welding quality and good consistency. The advantages of high frequency welding for single batch products are obvious. High frequency welding can be used for all kinds of diamond drill bit welding, all kinds of hard alloy cutter head, saw blade welding, all kinds of pick bit, drill pipe, coal mine drill bit, air drill bit and other mining machinery accessories welding. Welding of air conditioning and refrigeration accessories such as: high-frequency brazing of public security gold such as pipe joints, distributors, distributor tail pipes, sight mirrors, four-way valve end covers, flute pipes, liquid storage bottles, drying bottles, stop valves, etc. Welding of automobile air-conditioning refrigeration accessories: such as high-frequency brazing of evaporator lead-out pipe, single-tube pressure plate, double-tube pressure plate, air-conditioning pipeline, visual mirror, parallel flow microchannel flat tube joint, aluminum distributor and other accessories. New energy vehicle power battery pack cooling system in the water cooling belt joint welding, cold plate and other accessories welding When an alternating current is passed, an alternating magnetic field is generated in and around the coil. During induction heating, the part is subjected to this alternating magnetic field. According to the theory of electromagnetic field, the changing magnetic field will produce induced electromotive force, which will form a closed surface of the part. This current is usually called eddy current. Induction heating is mainly generated by eddy current in the workpiece, so that the workpiece is heated. (Since it is not clear whether the current of the induction coil increases or decreases, the default is to plot according to the increase) The two magnetic fields involved in Lenz's law, one is the magnetic field generated by the induced current of the heating coil (called the induced magnetic field), and the other is the induced magnetic field. The magnetic field of the induced current (called the original magnetic field), according to Lenz's law, the magnetic field generated by the induced current always hinders the change of the magnetic flux of the original magnetic field. (This refers to the induction intensity, not the magnetic flux area). If the magnetic flux of the induction current of the heating coil is increased or tends to increase. Potential, it can be judged that the induced magnetic field is to the left. According to Lenz's law, to hinder the increase of magnetic flux, the magnetic field causing induced current should be in phase with it. In the opposite direction, I .e. to the right, and then according to the right-hand ampere rule, the direction of the rotating current is obtained.

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