Heating using an electromagnetic field has been used for a long time and in many processes. It is especially widely used in hardening, casting, soldering. This method of induction heating on vortex currents is founded, which occur on the surface of an object placed in an electromagnetic field of alternating current. One condition — the subject should be conductive.
But the pioneers in the use of induction heating for car repair were employees of Alesco, who manufactured a whole line that differ in the capacity of the devices for service work.
Devices consist of two parts — this is a power supply and an inductor made the form of a coil.
The line of the devices is represented by Alesco-500, Alesco-1000 and Alesco-3000 devices. The digit in the designation characterizes the power of the device. The first is used for work such as the removal of cooked bolts and nuts. More powerful counterparts can be performed by such responsible work as hot landing of shafts and bearings, as well as warming up body elements — frames.
The main advantage of induction heating devices is local heating, which does not affect the nearby parts.
Also a big plus is a quick heating that can be easily controlled by changing the current frequency and its strength. Another advantage of induction heating devices is their fire safety and high efficiency, and the absence of rubbing and moving parts ensures durability and reliability.
The only drawback is the high price, but those prospects that open using these devices cost that kind of money.