Induction heating – The Process
Induction heating is one of the special ways of directly heating an electrical metal part by circulating electric currents rather than a torch or open flame. Induction heating machines rely on the qualities of radio frequency energy moving heat to the part via electromagnetic waves. There are various rewards for this procedure. The part does not come into contact with any flame while there is absolutely no chance of contamination to the product or service. The inductor in the product does not get hot. These machines work on the idea of Faraday’s Law. An excellent state radio frequency energy supply passes alternating current through a copper coil inductor that contains the warmed up part. The inductor can serve as the primary transformer although the heated metal aspect is another short-circuit. The metallic part that goes into the magnetic field circulates eddy currents inside the element. The flow of eddy currents generates localized heat without the need for touch produced between the inductor and metal part.
Induction welding is employed to soften, harden and conductive materials and bond metals. There is a multitude of inducting heating magnetic energy generators that offer a mixture of consistency, balance and quickness for manufacturing processes.
Things to Consider
The effectiveness of induction heating machine s depends on a few factors. Few factors includes the characteristics of the element, inductor structure, capability of the electrical power supply, along with highly accurate temperature required for the application. One can use an electrically conducting object generally metals for induction welding. Plastics along with other non-conductive materials requires indirect heating through a conductive metal susceptor. Magnetic materials are easier to heat through this course of action since they have of exceptional permeability as compared to non magnetic materials.
Heat intensity, Power Supply and Inductor Design
Heating intensity is a crucial factor to take into account because around 85 % of the heating effect occurs on the surface of conductive materials.Heat severeness decreases with the increase of distance from the surface area. Frequencies of 100 to 400 kHz are ideal for smaller places, while longer heating cycles at lower frequencies are effective for serious, penetrating heat. The scale of the induction power supply is usually calculated by determining the quantity of energy transfer required for the hard work piece. This depends on specific heating of the information, the mass of its, and the necessary surge in temperature. The look of the inductor is a vital aspect since the various magnetic field needed for induction develops within the inductor. The inductor supplies the precise heating pattern and also maximizes the efficiency of the induction heating power supply.