Induction Hardening Equipment

Induction Hardening Euipment

Induction Hardening Equipment

Induction hardening equipment is vital to the production of strong durable metal components for a wide variety of applications. Induction hardening followed by quenching is used to cause a martensitic transformation in the metal which increases the hardness of the material. This method of hardening metals will not change the basic properties of the materials being hardened.

induction hardening machines

    • Industries That Require Hardened Metal

Hardening is required for automotive and aerospace industries, machine tools and other industrial parts, as well as all types of shafts. Although there are other methods of hardening, induction allows designated areas of metal materials to be hardened. Induction hardening equipment heats the materials by utilizing an electromagnetic field generated by running high frequency electrical power through coils to heat the metal, eliminating direct contact between the metal and the heat source.

    • How Is the Hardening Procedure Carried Out

Once the metal is heated to the desired temperature for proper hardening, it is immediately quenched, allowing the core of the component to retain its original properties. Whether case hardening or surface hardening is needed, induction hardening equipment delivers precise temperatures and uniform heating of metal parts. Induction hardening yields a far stronger and more durable metal component.

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    • Why Is Induction Heating Preferred?

Induction hardening is the best choice for critical parts that must withstand a great deal of stress and strain. Parts and materials which have been induction hardened are far more resistant to fatigue and have a much higher wear resistance than metals hardened using other methods. Induction hardening equipment is a valuable tool in industries such as aerospace, automotive and machine tools where tolerances must be precise and great tensile strength is required.

Induction hardening equipment is fully customized to the specific application by the power supply and the frequency. Programmable digital control systems and IGBT technology allow induction systems to be fully automated. The equipment can be synchronized with many material handling systems.

Various Methods of Induction Hardening Metal

There are two principal methods of hardening. Single shot hardening requires that the material be rotated or held statically inside the coil. The design of the coils in a single shot system is often complex and the process may be quite involved, depending on the application. This method also demands the most electrical power.

Vertical Scanning method or Horizontal Scanning method where the material passes through the center of the coil. The amount of speed, power and frequency used determines whether the piece will be hardened uniformly or only in specific areas. The speed also determines the depth of the hardness in the metal.
Induction hardening equipment provides the most economical solution to manufacturers. Induction equipment does not waste energy on warm up or cool down times since the heat is generated by the electromagnetic field.

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