With the induced current local heating of the workpiece surface heat treatment process. This commonly used in surface hardening heat treatment process can also be used for local annealing or tempering, sometimes for a whole quenching and tempering. The early 1930s, the United States, the Soviet Union has began to use the method of induction heating surface hardening of parts. With industrial development, induction heating heat treatment technology continues to improve, the application scope has been expanded. ① do not have the advantages of heating the whole, small deformation of the workpiece, the power consumption is small. ② pollution. ③ heating speed, surface oxidation and decarbonization lighter. ④ surface hardened layer can be adjusted as needed, easy to control. ⑤ heating equipment can be installed in machining production line, easy to implement mechanization and automation, easy to manage, and can reduce transportation, saving manpower, improve production efficiency. ⑥ fine martensite hardened layer high-frequency heating equipment prices, hardness, strength and toughness are higher. ⑦ After the surface has hardened workpiece surface compressive stress within the larger, higher workpiece fatigue breaking capacity. High-frequency heating apparatus is the use of the principle of magnetic induction heating eddy frequency heating apparatus, the use of current through the coil generates a magnetic field, a magnetic field when the magnetic flux passes through the metal material, so that the boiler itself own high-speed heating, and then heated material in a short time and can within a satisfactory temperature. The main advantage of this product is magnetic heating, energy saving, environmental protection, zero-emission characteristics of high-frequency heating equipment, unattended, water separation, piping no scaling, no fire frequency heating plant, easy to operate, safe, reliable, durable, clean environment, easy installation, beautiful appearance, widely applicable, no noise, odor, open loop, the complete absence of any risk of explosion. With anti-overheating, no leakage, anti-anti-dry due to water, anti undervoltage, overvoltage prevention, antifreeze, automatic temperature at night when electricity trough thermal storage, such as multiple intelligent protection, no smoke, no heat radiation, and many other advantages. Backwater control using high-power radiator for cooling, you can make full use of the recovered heat to improve thermal efficiency and adapt to harsh environments. Features high-frequency heating equipment, high-frequency heating equipment, high frequency provided by Qingdao days Run Run High Frequency Electric Co., Ltd. Qingdao days. High Frequency Electric Co., Ltd. Qingdao Tianrun (www.gaozhoubo.com.cn) strong, credible, in Qingdao, Shandong packaging related equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Qingdao Tianrun high frequency and you work into the brilliant, for a better future!