According to the frequency of the alternating current level of induction heating heat treatment can be divided into UHF, HF, super audio, frequency, frequency 5 classes. ① ultra-high frequency induction heating heat treatment used in the current frequency up to 27 MHz, the heating layer is extremely thin, only about 0.15 mm UHF welding machine price, can be used for surface hardening thin circular saws and other complex shape of the workpiece. ② a high-frequency induction heating frequency of the current used in the heat treatment is typically 200 to 300 kHz UHF welding machine equipment, the heating layer depth of 0.5 to 2 mm, can be used for surface hardening of parts of the gear, cylinder liners, cam shaft. ③ super audio induction heating current frequency used for the heat treatment is generally 20 to 30 kHz, for small modulus gear with ultra-audio frequency induction heating current, the heating layer generally distributed along the tooth profile, pure fire after the use of better performance. ④ heat induction heating current frequency used is generally 2.5 to 10 kHz, a heating layer depth of 2 to 8 mm, and more for big modulus gear, surface hardening large diameter shafts and other parts of cold roll. ⑤ frequency induction heating heat treatment used in the current frequency of 50 to 60 Hz, a heating layer depth of 10 to 15 mm, can be used for surface hardening of large workpieces. 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 UHF welding machine, surface oxidation and decarbonization lighter. ④ surface hardened layer can be adjusted UHF welding machine use 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 hardened layer of fine martensite, hardness, strength and toughness are higher. ⑦ After the surface has hardened workpiece surface compressive stress within the larger, higher workpiece fatigue breaking capacity. Shandong UHF welding machine | UHF welding machine | 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) in the field of packaging related equipment devoted boundless enthusiasm and passion, Qingdao Tianrun high frequency has been customer-centric, for customers to create the concept of value, quality and service to win the market, and sincerely hope to cooperate with the community to create a successful, create brilliant. Related businesses welcomed the inquiry, contact: Yan Lidong.