High Frequency Heating
MORE EFFICIENT USE OF ENERGY
By generating the heat directly in the work piece, exactly where it is needed, all thermal transport problems are eliminated. Heat losses are reduced to a minimum, allowing the energy to be used more efficiently, irrespective of the material.
SHORTER HEATING TIMES
HF heating is by far the quickest method of heating. Using conventional heating methods, for example, it takes about four hours to glue 6” laminated beams with resin glue. With HF heating, the entire operation is completed in two minutes. This is due to the fact that wood is a poor conductor of heat. Using conventional heating processes, the surface of the wood must first be heated, after which the heat penetrates slowly into the interior. With HF heating, on the other hand, the heat is generated uniformly throughout the material.
CONTROLLED HEATING ZONE
Heat treatment is often required to harden only certain parts or surface areas of, say, a shaft, a saw blade, a high-pressure nozzle etc. Inductive heating provides an unsurpassed means of locating the heat to exactly the required parts, as compared with conventional heating methods.
The ability to control temperature and heating time with high accuracy is sometimes vital to production result.
EASY TO INTEGRATE
HF heating methods are particularly suitable for integration in automated production processes. As the equipment is compact and contains no complicated mechanisms, both floor area and transport equipment can be saved.
Compared with other methods of heating, in which gases, petroleum products or solid fuels are used as the energy source, HF heating has minimum environmental impact. No dusty process areas with particle-laden air requiring higher ventilation capacity. HF heating is clean and quiet, contributing to better working conditions.
SIMPLE TO OPERATE
Manufactures using conventional heating methods, and gas heating processes in particular, can easily become dependent on the availability to suitably skilled labour. This is quite unnecessary with HF heating. The majority of HF heating equipment can generally be operated by unskilled labour, often after only a few minutes simple instruction. It is no more difficult than that.
SHORT STARTING AND STOPPING TIMES
You can start operating an induction hardening equipment as soon as you turn on the power. Stopping it is just as simple. This means that you have extremely short starting and stopping times.