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Induction Hardening

Surface hardening with induction (Induction Hardening), this method is commonly used with steel. Medium carbon (0.4-0.5% C) and high carbon steel (0.8-1.2% C) are treated by heat treatment with High-frequency induction electric work piece Then the iron is quickly moistened with water or cooled. The properties of the work piece after heat treatment are resistant to Good abrasion and fatigue resistance.

Tempering

After we harden the workpiece, we take it to tempering, this process is done after the hardening process, the pre-hardened steel will be stressed (strain) internally and harden will increase. But steel will lack the properties of toughness (Ductility), making it unsuitable for use. because if there is a bump Steel pieces may crack. Therefore, it is necessary to improve the bad properties by annealing. By the method of firing in the furnace at a low temperature of about 200 ° C - 400 ° C, leave it for about 1 - 3 hours, then take the workpiece out and let it cool down in normal temperature. Steel will have better toughness properties, so in order to solve and reduce such problems.g. This process is done after hardening process. Because of the steel after hardening will be most structures are Martensite or Bainite and have some residual Austennite. In addition, there will be stress occurs internally Which is caused by the rapid cooling process, so in order to fix and reduce the said problem should be reheated after hardening.

Hardness Test

The hardness test is a measure of the ability to resist permanent deformation, a measure of the hardness of a material. It is considered a basic value that can indicate the overall properties of that material for industrial metalworking. We need to have a material selection process for the workpiece. It requires testing with the right tools. Under the supervision of a team of experts KD Heat.

It can be seen that K.D.HEAT TECHNOLOGY attaches great importance to material hardness testing. Because it is a process that begins before the conclusion of the material in the actual workpiece, the results of the test will be analyzed and drawn to a conclusion. This results in a good result that operators can pick up materials to use in production properly according to their purpose and work in the next step with a low percentage of damage. including making it possible to use it with maximum efficiency as well