Since 1994
+86 28 8393 0607
Since 1994
+86 28 8393 0607
Mar. 15, 2016
The induction heating is a surface heating treatment technology. This heating
treatment technology is usually applied to the surface hardening, partial
annealing and tempering and the overall quenching and tempering.
Put the workpieces inside the sensor or coil, when a certain frequency alternation current pass through, there will generate the alternating magnetic field in the surroundings. The function of the electro-magnetic induction can generate the close induced current--vortex, which is asymmetrical distribution on the section of the workpieces. The workpieces surface has a high density current, and little bu little to the inner, which is called skin effect. The high density current on the workpieces surface turns the electric energy into the heat energy. Which can realize the heating surface. The higher of the current frequency, the thinner of the heating layer. After the heating temperature is over the steel critical point, we can cool it immediately, which is called surface hardening.
Latest News
The 4th Changsha International Construction Equipment Exhibition (CICEE)
May. 28, 2025
The 4th Changsha International Construction Equipment Exhibition (CICEE) has been held from May 15-18, 2025. Duolin, as a well-known induction heating equipment manufacturer in China, was invited to participate in this exhibition.
The Pros and Cons of Induction Hardening
May. 08, 2025
Induction hardening is a heat treatment method used to selectively and rapidly harden the surface of a metal. In this process, a copper coil carrying an alternating current is positioned near—without touching—the metal part.
Case Presentation
Customized Turnkey induction heating machine
Provide solution according to your requirement, well match with your production line
Related Products
100-300KW High Frequency Induction Heating Equipment
Power 30-300KW
Work Frequency 50-250Khz
This small power induction heater are high performance on small parts metal induction heating, easy to move and operate. Designed, produce and develpoment by Duolin team for 30 years, durable and good heating performance.
Induction heating is the process of heating an electrically conducting object (usually a metal) by electromagnetic induction, through heat generated in the object by eddy currents. An induction heater consists of induction power supply (induction heater) and inductor (coil) that is a shaped to contour the part, and a work station where the part is held and presented to the coil.
Quick Links
Tel.: +86 28 8393 0607
Mob.: +86 158 8242 2821
WhatsApp: +86 158 8242 2821
Add.: 112th Hancheng Road Xindu Industrial Zone Chengdu China
