Induction Heater Working Principle Pdf

February 18, 2018

The phenomenon of the electromagnetic induction is therefore based on three physical principles here below explained. Since heat is transferred to the product via electromagnetic waves the part never comes into direct contact with any flame the inductor itself does not get hot see figure 1 and there is no product contamination.

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The coil itself does not get hot and the heating effect is under controlled.

Induction heater working principle pdf. Induction heating relies on the unique characteristics of radio frequency rf energy that portion of the electromagnetic spectrum below infrared and microwave energy. If you are working in a steel factory then induction heater will be a common heating process for melting bending of metal. 1 transfer of energy from the inductor to the piece to be heated by means of electromagnetic fields.

The work coilinductor is a part of the induction heating system that displays the effectiveness and efficiency of the work piece when it is heated. This causes contamination of the object and the heating process is not very precise or controlled. Normally the processes we use for heating an object is directed to make a contact with hot objects or fire or by the flame of fire.

Calculating wire size for induction heater work coil once you have calculated the optimized values of l and c for the tank circuit of the induction heater and evaluated the exact compatible frequency for the driver circuit its time to calculate and fix the current handling capacity of the work coil and the capacitor. What is the working principle of induction heater. Induction heating was first noted when it was found that heat was produced in transformer and motor windings as mentioned in the chapter heat treating of metal in this book.

Induction heating occurs due to electromagnetic force fields producing an electrical current in a part. Knowledge of these basic theories of induction heating helps to understand the application of induction heating as applied to induction heat treating. Induction heating is a rapid clean non polluting heating form which can be used to heat metals or change the conductive materials properties.

Accordingly the principle of induction heating was studied so that motors and transformers could be built for maximum efficiency by minimizing heating losses. Work coils are of numerous types ranging from complex to simple. The parts heat due to the resis tance to the flow of this electric current.

2 transformation of the electric energy into heat due to. Induction heating working principles generally for any heating process a flame or an element is applied on the object to be heated. 3 the induction heating up to 9000c reduces extremely the incubation period in re heating of the compact after cooling.