1 Overview: This heating device is specially designed for the on-line annealing of copper tubes. For the characteristics of continuous heating in the movement and the workpiece being heated is copper, special design should be made for the parameters of the power supply and the inductor in the system design. The whole system is heated by a set of 800KW/6KHZ power supply. The outside of the inductor is made of aluminum closed casing and filled with protective gas (nitrogen) to prevent oxidation and oxidation of the copper pipe. This system has the following characteristics: 1.1 The intermediate frequency power supply is 800KW/6KHz. Due to the high power and high frequency, the power supply design has some special requirements. These will be detailed in the description of the power supply. 1.2 The intermediate frequency power supply and the sensor are all water-cooled, making the equipment small and easy to install. 1.3 Automatic continuous production, the production speed can be automatically adjusted according to different workpiece parameters. 1.4 Production line transmission raceway adopts frequency conversion speed regulation, plus PLC can realize closed-loop control of temperature, speed and power. 2. Process parameters: Copper tube size: Φ9.52�0.37mm; Φ12.7�0.43 mm Copper tube lifting temperature: 700 ° C Roller speed: >200 m/min 3. System equipment operation plan: 3.1 System power selection: The choice of total heating power is 800KW depending on your requirements. 3.2 Choice of program:
