This series uses a surface hardening method, which improves wear resistance by hardening the work surface while retaining softness within the work to allow energy loaded on the surface to be absorbed internally. This method is used in carburizing and quenching, carbonitriding and gas soft nitriding.

High-performance gas carburizing furnace for wide variety, small-lot production.

Applications

Quenching of oil-quenched steel, carburizing and quenching, carbonitriding and annealing

Features

• Highly airtight using a heat resistant steel muffle, which is suitable for repeated intermittent operation.
• Quick temperature raising and stabilization in atmosphere.
• Energy-saving, compact type suitable for small-lot production.

Treated weight

60 to 100 kg/ch

Temperature

800 to 950℃

Atmosphere

N2+CH3OH+C3H8

Surface hardening through nitriding for improved wear resistance of precision parts.

Applications

Hard nitriding and soft nitriding of dies and die parts

Features

• Gas purge in the furnace.
• Works are moved in and out from above manually or with a hoist.
• An exhaust gas decomposition device is provided for detoxifying ammonia in the exhaust gas. (Option)

Treated weight

50 to 300 kg/ch

Temperature

400 to 600℃

Atmosphere

NH3+CO2 after N2 purge

Surface hardening through nitriding for improved wear resistance of precision parts.

Applications

Hard nitriding and soft nitriding of dies and die parts

Features

• Suitable for precision parts and complex shape parts since gas substitution in the furnace is performed after vacuum purging.
• Works are moved in and out from the side manually or using a forklift.
• An exhaust gas decomposition device is provided for detoxifying ammonia in the exhaust gas. (Optional)

Treated weight

100 to 300 kg/ch

Temperature

400 to 600℃

Atmosphere

N2+CO2+NH3 after vacuum substitution