Traditional heating methods such as hot gas and coal burning are no longer available for continuous heating of steel bars and steel strips. The safest and fastest heating method is to use a high-frequency induction heating machine, which is relatively energy-saving and has adjustable speed. The heating method of the high-frequency induction heating machine is to use the high-frequency large current it emits to flow to the heating induction coil that is wound into a ring or a desired shape. The high-frequency induction is usually made of a hollow copper tube. A powerful magnetic beam whose polarity changes instantaneously is generated in the high-frequency induction coil. When the metal that needs to be heat treated is placed in the high-frequency coil, the magnetic beam will penetrate the entire heated metal object. A correspondingly strong eddy current is generated inside the induction heating object in the opposite direction to the induction heating current. Because there is resistance in the metal that is inductively heated, strong Joule heat energy is generated, causing the temperature of the inductively heated object to rise rapidly, thereby achieving the purpose of heat treatment.
Characteristics of continuous heating of wire and steel strip high-frequency annealing machines:
① The wire and steel strip high-frequency annealing machine has continuous heating, and the power can be adjusted according to the specifications and speed of the wire. This results in greater energy saving and is much more flexible than burning coal and natural gas.
② The heating environment of the high-frequency annealing machine is stable during heating. The temperature of the entire wire and steel strip will be uniform and no waste will be produced.
③ As soon as the high-frequency annealing machine is connected to the power supply, the induction coil and inlet and outlet pipes can be used normally, without unnecessary troubles such as lighting coal and preheating.
④The high-frequency annealing machine is equipped with alarm indicators such as overvoltage, overcurrent, overheating, and water shortage, and can automatically control and protect the machine.
⑤And can be connected with time relay and infrared temperature measurement, which can meet higher requirements.
⑥The operation is simple and easy to learn, and there is no danger of high voltage and large current.
The above is just a brief summary of the various advantages of high-frequency heating machines. The advantages will vary depending on the customer's situation. Before learning about the high-frequency annealing machine, please provide the current wire rod you want to heat, the specifications and dimensions of the steel strip, and the heating requirements. Feel free to leave us a message at any time.