Carburizing + Induction hardening

It’s a technology installed at Mazda corporation and it has a patent.
From the induction hardening after carbonization hardening, the crystal grains are refined and grain boundary property during carbonization is improved, as an example, the gear improves in shock strength and conflicting of sporing strength improves at the same time and the strength of the gear gets stronger.

Comparison between carburizing + induction hardening products and conventional carburizing hardening products

  Crystal grain size Fracture morphology
Carburizing + Induction hardening Gc No.11
Gc No.11
Intercrystalline fracture
Intercrystalline fracture
Conventional carburizing Gc No.8
Gc No.8
Grain boundary fracture
Grain boundary fracture

The factroy is able to do

Kaita Factory
Kaita Factory

9-9 Tsukimi-machi, Kaita-cho, Aki-gun,
Hiroshima-ken, 736-0034, Japan
Tel. +81-(0)82-822-2957
Fax. +81-(0)82-822-7294
Nagato Co., Ltd. & Oozu Factory
Nagato Co., Ltd. & Oozu Factory

3-6-24 Oozu, Minami-ku,
Hiroshima-shi, 732-0802, Japan
Tel. +81-(0)82-282-4361
Fax. +81-(0)82-282-4262

Contact Us

Nagato Heat Treatment (Thailand) Co., Ltd.
7 /379 Moo 6, Tambol Mabyangporn, Amphur Pluakdaeng, Rayong, Thailand
Tel. +66-(0)38-027-473  Fax. +66-(0)38-027-475