200KW High Frequency Induction Hardening Equipment

How exactly does induction hardening equipment work?

Through the conversion of the high-frequency gear induction hardening equipment, the 50HZ/60HZ alternating current is converted into a direct current voltage, and then the direct current is converted into a 20-40KHZ high-frequency voltage output through the control circuit. The fast-moving high-voltage current will produce high-speed changes in the cable. After the magnetic field cable is in contact with the iron container, the surface of the container will cut off the AC magnetic lines of force and generate alternating current on the metal part at the bottom of the container. The vortex causes the iron atoms at the bottom of the container to move irregularly at high speed.

Induction heating is to generate current eddy currents in the inductor coil through alternating current so that the electron holes in the magnetically conductive objects in the coil move to generate heat. High-frequency CNC induction hardening equipment can instantly heat metal objects to any desired temperature, including their melting point.

The high-frequency crankshaft induction hardening equipment is composed of a bed, loading and unloading mechanism, clamping and rotating mechanism, quenching transformer and resonance tank circuit, cooling system, quenching liquid circulation system, electrical control system, etc. Two main types: vertical and horizontal. The induction hardening process is mainly realized by the cooperation of the hardening machine tool and the medium and high-frequency power supply. It is used for various gears, bearings, shaft parts, valves, cylinder liners, and various machinery. The parts are quenched and heat treated.

High-Frequency Induction Hardening Equipment

The hardening heat treatment process uses heat to increase the hardness of the material surface, thereby reducing its fragility. Hardening results in a strong shell and a strong core

The use of this gear induction hardening equipment will lead to an improvement in mechanical properties and an increase in the level of hardness, thereby producing tougher and more durable items. The alloy is heated to exceed the critical transition temperature of the material, and then rapidly cooled enough to transform the soft starting material into a harder, stronger structure. Depending on the amount of alloying elements in the material, the alloy can be cooled by air or by quenching in oil, water, or other liquids. Usually, the hardened material is tempered or stress relieved to improve its dimensional stability and toughness.

Steel parts usually require heat treatment to obtain improved mechanical properties, such as increased hardness or strength. The induction hardening process involves heating the component above the critical (normalizing) temperature, holding it for one hour per inch of thickness at this temperature, cooling it fast enough to transform the material into a harder, stronger structure, and then tempering. Steel is essentially an alloy of iron and carbon. Other steel alloys have other metal elements in the solution. Heating the material above the critical temperature will cause carbon and other elements to enter the solid solution. Quenching “freezes” the microstructure and creates stress. The parts are then tempered to change the structure, achieve the appropriate hardness, and relieve stress. Induction Hardened Steel; Gear Induction Hardening; High Frequency Induction Hardening; Shaft Induction Hardening Machine; 

What is hardening heat treatment?

Hardening heat treatments invariably involve heating to a sufficiently high temperature to dissolve solute-rich precipitates. The metal is then rapidly cooled to avoid reprecipitation; often this is done by quenching in water or oil. Precipitation hardening is used to produce most high-strength alloys.

What does induction hardening do to steel?

Induction hardening is a metallurgical metalworking process used to increase the hardness of a metal. The hardness of a metal is directly proportional to the uniaxial yield stress at the location of the imposed strain. A harder metal will have a higher resistance to plastic deformation than a less hard metal.

What are the types of induction hardening?

Some common types of hardening include strain hardening, solid solution strengthening, precipitation hardening, and quenching and tempering.

What is the difference between induction hardening and induction tempering?

The main difference between annealing hardening and tempering is that annealing is done to soften a metal or an alloy and hardening is done to increase the hardness of a metal or alloy whereas tempering is done to reduce the brittleness of quenched metal or alloy.

Among the metals, those with high melting point are relatively large in power, and those with low melting point are relatively small; those with low resistivity are more powerful, and those with high resistivity are less power.

The shape of the welded parts of the high-frequency heating machine is almost unlimited, the outline pattern will not be damaged, the external crystal layout of the metal remains unchanged, the annealing range is small, and it is widely used in the metal glasses manufacturing industry without welding scars. High-frequency quenching uses high-frequency current to locally heat and cools the surface of the workpiece to obtain a surface-hardened layer.

Connector welding in the electrical and electronic industry, non-war welding on the outside of small relays, high-pressure welding in the refrigeration industry, welding between various parts in the gold jewelry industry, and welding in the metal jewelry and craft manufacturing industries. Mainly used in the following areas.

Melting

Carbide saw blade big and small tooth welding

Hardening and tempering of silver brazed micro motor shaft for fine metal joints in the electromechanical industry

Wire thin strip annealing for the wire industry

Welding of knives, paper cutting knives, and cutting edge quenching of shoe knives

Welding

Toy industry Tempering of clockwork sheet metal

Welding and annealing of spectacle frames and spare parts

Welding of Jewelry and Watches

The electronics industry, ultra-fine wire, various electronic components, fine parts, tin soldering, silver soldering

Forging

Hot forming for all kinds of standard parts, fasteners, machinery parts, hardware tools, and straight shank twist drills. Metal annealings, such as tensile steel; wire, nail wire heating, and stainless steel annealing.

Packing Details

Export standard packing, inner carton outer wooden box and double protection