Surface hardening treatment

Carburizing

Carburizing/carbonitriding

This is a treatment method that infiltrates carbon/nitrogen. We will make optimal proposals by utilizing our extensive equipment lineup and the experience we have cultivated.

Carbonitriding

Vacuum carburizing (slow cooling)

Carburizing under reduced pressure can suppress the occurrence of grain boundary oxidation. In addition, slow cooling allows you to choose from a variety of secondary baking options.

Gas soft-nitriding

Gas nitrocarburizing

This is a treatment method that infiltrates nitrogen/carbon. Using our own know-how, we have succeeded in reducing the porous layer by up to 30%.

Special heat treatmentSpecial heat treatment

Carburizing

brazing

This is a method in which metal filler metal is brought into a molten state and joined by capillary action. Stable quality can be maintained by processing in a vacuum furnace.

Carbonitriding

mild press quench

This is a press quenching method that takes advantage of the expansion during martensitic transformation after heating steel to austenitization and quenching it in oil. We mainly produce bearings.

Gas soft-nitriding

Hydrogen reduction Solid solution treatment

Using special equipment, we can produce thin roll shapes that cannot be produced using batch furnaces through solid solution treatment, normalizing, and annealing.