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Energy monitor principle for induction heating equipment
The main process parameters of induction heating equipment are heating power (kW) and heating time (s). If the power fluctuation or time fluctuation exceeds a certain range during operation, the workpiece heating temperature fluctuates, which affects the quality of the quenched workpiece. In the early induction heating equipment, the method of controlling the heating power and heating time was adopted for the heating overflow; for the fluctuation of the power supply voltage, measures such as voltage regulation were adopted.
1, the use of energy monitors
With the development of control instruments, energy kW. An energy monitor that directly controls the heating process for the s value is used for production. This energy monitor can set the upper and lower limits. If the energy exceeds the limit during the production process, it will automatically stop. The panel is large and easy to observe. There are upper and lower limit settings below, and the right is over, qualified and owed. The value is three. This monitor also has a counting function and optionally installs a printer as a log file when needed.
2. TOCCO induction heating coil monitor
TOCCO induction heating coil monitor
It features direct measurement of energy from the induction coil to make the hardened layer pattern and depth control more precise. In addition, the monitor provides real-time coil voltage, current, power, power factor, heating time, coil impedance and frequency. monitor. This instrument is flexible and can be used in intermediate frequency furnaces or high frequency furnaces through transfer switches .IF mode: applicable frequency 3-25 kHz, power range of 1 to several thousand kW, can be used for any type of intermediate frequency power supply; high frequency mode: applicable frequency 25-450kHz, power range is l- 1 OOOkW. Can be used for weekly or electronic tube power supplies.
This instrument can work independently, or access the program controller for fault detection, and each has two fault relays, each with kW. The s value or heating time limit so that a single monitor can be applied in the same cycle where hardening and tempering occur.
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