Introduction and application of induction heating

What is induction heating?

Induction heating is a flame-free, fast, clean, energy-saving, pollution-free method of heating metals and conductive materials.

Features of induction heating:

Fast. The heat generated by induction heating is instantaneous. Achieving a uniform surface temperature of 1,000°C on small metal parts takes less than a second.

Accurate. Provide accurate temperatures only where they are needed, and different frequencies are available to heat to the right 

depth. We can customize induction coils to fit workpieces of almost any shape or size. Customized coils ensure optimal heating mode with minimal energy consumption.

Controllable. Transistor converters and process control software give complete control over the entire heating process. The induction heating machine can also be equipped with built-in telemetry devices for remote diagnostics and offsite monitoring.

Repeatable. Induction heating allows you to repeat exactly the desired heating cycle. (In fact, the heat generated by the frequency converter typically varies by only 1-2%).) You can copy all the key parameters: temperature, depth of penetration, heating mode, heating rate. Acceleration and dwell times can be preset and repeated.

Clean, safe and compact. There is no gas, no open flame, no significant increase in ambient temperature, and the furnace does not occupy too much space, which makes induction heating both sustainable and superior to other heating methods.

Applications of induction heating:

Induction heating is a technology that touches almost every aspect of modern life. Induction heating solutions are used in everything from manufacturing faucets, spacecraft, solar cells, to bulldozers.

Induction heating equipment can be used in almost any industrial application involving metal heat treatment.

Hardening. Increase the hardness and durability of steel.

Tempering. Optimize the mechanical properties of hardened workpieces.

Brazing. Connect a variety of metals, both ferrous and non-ferrous.

Welding. For longitudinal welding in the tube industry.

Annealing and normalizing. Reduces hardness, improves ductility and reduces internal stress.

Bonding. Bond steel, aluminium sheets, new lightweight composites and carbon fiber materials.

Preheating. Induction-heat a material or workpiece before further processing.

Post-heating. Heating workpieces or materials that have already undergone extensive processing.Shrink fittings. Shrink fit gears and rings; repair planes, trains and trucks; Remove huge nuts and bolts in the turbines of the power station.

Induction straightening. Reduce the time for deck straightening by up to 80%.

Bolt heating. Fast bolt expansion in high-pressure turbines.

Coating removal. Reduce the time for coating removal by up to 90%.

Forging. Heat metal parts before they are shaped or "deformed" by a press or hammer.

Melting. It is possible to melt materials from ferrous and non-ferrous metals to nuclear materials and medical/dental alloy materials.

Wire and cable heating. Ideal for critical stages in the manufacture and processing of wire and cable products.