Vacuum Carburizing quenching

Gas carbonization in general causes a softened layer on the surface and that could especially be a disadvantage to the metal fatigue. So, carbonization in a vacuum (low pressure) will decrease the chance of getting softened layers. In addition to that, because carbonization in high temperature can be possible, it takes a shorter amount of time and it is favourable for deeper carbonization parts.

Metallographic structure and treatment condition

before treatment

Ferrite + perlite
before treatment

treatment condition after treatment

after treatment



Vacuum Furnace
Vacuum Furnace

The factroy is able to do

Numata Factory
Numata Factory

2-23-1 ohzuka-nishi, , Asaminami-ku,
Hiroshima-shi, 731-3167, Japan
Tel. +81-(0)82-848-6021
Fax. +81-(0)82-848-6301

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