Different frequency heating depths of high-frequency quenching equipment are different

1) Medium frequency induction heating method

Frequency range: normal 1KHZ to 20KHZ, the typical value is about 8KHZ. The heating depth and thickness are about 3-10mm. It is mostly used for heating, annealing, tempering, quenching and tempering and surface quenching of larger workpieces, large diameter shafts, large diameter thick wall pipes, large modulus gears, and red punching, forging and smelting of smaller diameter bars. Wait.

2) Super audio frequency induction heating method

Frequency range: ordinary 20KHZ to 40KHZ (because the audio frequency is 20HZ to 20KHZ, so it is called super audio). The heating depth and thickness are about 2-3mm. It is mostly used for deep heating, annealing, tempering, quenching and tempering of workpieces with medium diameter, heating, welding, thermal assembly of thin-walled pipes with larger diameter, and medium gear quenching.

3) High frequency induction heating method

Frequency range: normal 30KHZ to 100KHZ, commonly used 40KHZ to 80KHZ. The heating depth and thickness are about 1-2mm. Induction heating surface hardening equipment is mostly used for deep heating, red punching, forging, annealing, tempering, quenching and tempering, surface quenching, heating and welding of medium diameter pipes, hot assembly, pinion quenching, etc. of small workpieces.

4) Induction heating method of ultra-high frequency quenching equipment

The frequency is relatively high, the frequency range: above 200KHZ, up to 1.1MHZ. The heating depth and thickness are small, about 0.1-1mm. It is mostly used for the quenching and welding of local very small parts or very thin bars, and the surface quenching of small workpieces.

At the same time, these five kinds of induction heating equipment have certain advantages. They all use IGBT induction heating power supplies. They are the most energy-saving and environmentally friendly induction heating equipment in the 21st century.

①Main features: small size, high power, fast heating, transparent core, low power consumption.

②Power saving situation: Compared with the old-fashioned thyristor intermediate frequency, the thyristor intermediate frequency heating uses about 500 degrees per ton of workpiece. Our company’s new intermediate frequency power consumption is about 300 degrees. Each ton burned saves more than 200 kilowatt-hours of electricity, which is 30% more energy-saving than the old test.

③ Circuit characteristics: The main device adopts IGBT module, the circuit does not control full bridge rectification, capacitor filtering, bridge inverter, series resonance output. It is fundamentally different from the old-fashioned intermediate frequency using thyristor parallel resonance.

④Power saving principle: Uncontrollable rectification, and the rectifier circuit is fully conductive. High power factor, voltage type series resonance, etc., determine the substantial power saving of this equipment. The power automatic tracking technology of the equipment, the equipment will automatically adjust the output power according to your workpiece. Determine the size of the equipment according to the heated workpiece. The heavier the workpiece load, the greater the power, and the lighter the load, the lower the power.