In theory only 3 things are essential to implement Induction Heating:
A source of High Frequency electrical power, A induction coil to generate the alternating magnetic field, An electrically conductive workpiece to be heated, Having said this, practical induction heating machines/induction heater are usually a little more complex. For example, an impedance matching network is often required between the High Frequency source and the induction coil in order to ensure good power transfer. Water cooling systems are also common in high power induction heaters to remove waste heat from the induction coil, its matching network and the power electronics. Finally some control electronics is usually employed to control the intensity of the induction heating action, and time the induction heating cycle to ensure consistent results. The control electronics also protects the system from being damaged by a number of adverse operating conditions. However, the basic principle of operation of any induction heater remains the same as described earlier.
Induction heating is a form of non-contact heating for conductive materials, when alternating current flows in the induced coil, varying electromagnetic field is set up around the coil, circulating current(induced, current, eddy current) is generated in the workpiece(conductive material), heat is produced as the eddy current flows against the resitivity of the material. Induction heating is a rapid ,clean, non-polluting heating form which can be used to heat metals or change the conductive material’s properties. The coil itself does not get hot and the heating effect is under controlled. The solid state transistor technology has made induction heating much easier,cost-effective heating for applications including soldering and induction brazing ,induction heat treating, induction melting,induction forging etc.
DaWei Induction Heating Machine Co.,Ltd specializes in Induction Heating machines manufacturing and marketing for more than 1 decade. The machines cover Automatic Surface Hardening & Tempering Machines, Flexible Brazing Systems, Induction Melting Systems,Induction Forging Systems,Compact Adhesive Curing Systems Efficient Tube Welders & Thermal Straightening Systems. They are wildly used in heat treatment, bonding, brazing, welding, forging, melting and heat fitting solutions.Transistor converters from 500Hz to 300KHz frequency & power sizes from 5 to 300 KW.
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