The principle of induction heating:

• After the induction heating equipment outputs a strong alternating frequency current, a strong alternating magnetic field is generated through the induction coil
• Under the action of the magnetic field, an eddy current is formed on the surface of the heated workpiece, which quickly heats the workpiece

A wide range of uses for induction heating equipment:

• Welding (brazing, silver soldering, copper soldering)
• Heat treatment (surface quenching)
• Annealing (tempering, quenching and tempering)
• Smelting (refining)
• Heating (diathermy, hot forging, hot forming)
• Thermal fit, thermal induction

• Application and selection of heating power supply：

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Heating type	Scope of application	Frequency selection	Power selection
	Composite welding of drill bits, turning tools, reamers, milling cutters, drill bits, etc. and different materials for stainless steel pot bottoms.	Principle: The larger the welding volume, the lower the frequency should be. For tools with a volume smaller than 30*30*30, high frequency can be used; if it is larger than 30*30*30, medium frequency can be used. Principle: The larger the diameter of the workpiece, the lower the frequency should be.	It depends on the specific workpiece shape, material, solder, etc.
	Fasteners, standard parts, auto parts, hardware tools, copper rods, hot upsetting and hot rolling of twist drills, etc.	Above φ20, intermediate frequency (1-20KHZ) φ5-20, high frequency (20-100KHZ) Below φ5, UHF (100-500KHZ)	Select the appropriate power according to the production efficiency. The higher the power, the faster the speed. Consult the company’s technical staff for details.
	Quenching of shafts, gears, sprockets, machine tool guide rail accessories, etc.	Principle: The shallower the hardened layer is required for the workpiece, the higher the frequency should be. Ultra high 100-500KHZ below 1mm 1-2.5mm Super Audio 20-100KHZ IF 1-20KHZ above 2.5mm;	Considering the workpiece shape, quenching method, quenching hardness, hardened layer requirements and materials etc., you can consult the company’s technical personnel for details.
	Metal wire and pipe annealing, hydraulic fittings, auto fittings, knife scissors, stainless steel pot annealing, etc.	Combined with the comprehensive consideration of workpiece annealing requirements, annealing speed and materials, please consult the company’s technical personnel for details.
	It is mainly suitable for melting of steel, iron, copper, aluminum, zinc and various precious metals such as gold and silver.	Intermediate frequency; small capacity optional high frequency	It depends on the furnace and production efficiency.
	Heating coating of aluminum-plastic pipes, steel-plastic pipes, cables and wires: aluminum drop seals for food, beverage, and pharmaceutical industries.	On a case-by-case basis	Depends on production speed, material, temperature.

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• Heating Frequency

The power supply is selected according to the power and frequency.

The higher the frequency, the shallower the heating depth, and the lower the frequency, the better the heat penetration.

• High Frequency Range ：30-80kHz
• UHF Frequency Range：200-1100kHz
• IF Frequency Range：1-20kHz
• Super Audio Frequency Range：20-50kHz

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Description and Advantages:

• Adopts the latest MOSPET, IGBT power units and frequency conversion control techniques with high efficiency, low energy consumption and higher output power
• With constant current and constant power control function to greatly optimize the heating process of metals, realize efficient and fast heating, and fully exert the superiority of the products
• Power consumption is half of traditional electron tube high frequency induction heating equipments under same conditions
• With 100% load design, can work in 24 hours without stop. Infrared temperature detector can be equipped to realize the automatic control of temperature, improve heating quality and simplify manual operation
• With heating-insulating-cooling three stages function setting, the heating and insulating time required can be get to accommodate to the batched and repeated heating situations
• With multiple status display of overflow, overvoltage, low water, phase failure and load malfunction, providing higher reliability and sustainability
• Select power supply according to the power and frequency. The higher the frequency, the shallower the heating depth, and the lower the frequency, the better the diathermancy