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Induction heating technology is particularily advantageous for spot and surface hardening parts comprised of hardenable materials, because it is possible to attain a high specific power output of many kW per cm2 of surface area of the heated piece, and this takes advantage of what is called the "skin effect." The higher the frequency of oscillation of the inducted current, the less penetration there is in the heated layers of the working piece. For hardening depths of many millimeters, frequency oscillation of up to 10 kHz is chosen, while for depths in the 10th's of a millimeter, kHz in the hundreds are used.
Fast heating is following by quick cooling, the best method being a cooling spray. The result is a hardened surface and a strong core of the processed piece.
The hardening system typically incorporates a frequency converter with its associated equipment, a frequency transformer, the heater for gradual or one-time hardening, and a cooling water supply.
For solving challenges related to hardening in the scope of mid-frequency, ROBOTERM Chotebor partners with companies like Martenzit, who are industry specialists in applying induction technology to hardening. In applicable situations, we share in the construction of hardening equipment by supplying frequency converters and additional compentents of the hardening system.
10.12.2020 Thank you for your cooperation in 2020 and wish you many personal and work achievements in 2021. ROBOTERM Chotěboř wishes you a Merry Christmas and Happy New Year 2021! more...
20.2.2020 Induction annealing machines are designed for heat treatment of welded joints to... more...
10.12.2019 Thank you for your cooperation in 2019 and wish you many personal and work achievements in 2020. ROBOTERM Chotěboř wishes you a Merry Christmas and Happy New Year 2020! more...
27.6.2019 The world's largest event in the field of heating and processing metals The Bright World of Metals 2019, held from 25th to 29th June 2019, opened its gates again after not being held for four years. more...
10.12.2018 Thank you for your cooperation in 2018 and wish you many personal and work achievements in 2019. ROBOTERM Chotěboř wishes you a Merry Christmas and Happy New Year 2019! more...
23.4.2018 Induction heater made for Řetězárna Česká Třebová Ltd. is used for induction heating of blanks „L" 700 ÷ 1300 mm up to forging temperature. It consists of input and output mechanisms, a heater box, more...
Feeding systems handle the manipulation of billets to the entrance of an inductor
more...We provide repass, repairs and reconditioning of induction heaters, frequency converters, inductors ...
more...Induction heating can be simulated very precisely by computer technology. ...
more...Thyristor Frequency Converters used in induction heating, hardening, smelting.
more...Induction annealing machines are designed for heat treatment of welded joints to...
more...Induction heating technology is particularily advantageous for spot and surface
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