Neue ZWL Zahnradwerk Leipzig GmbH

- Heat treatment for hardening processes - manufacture possibilities -

(Heat treatment with nitrogen, methanol and propane)

Temperature (°C)

Charge size
(mm)

Charge
mass (kg)

Case hardening
( deepness 0,3 – 1,2 mm )
Carbonising
Hardening
Refining
Nitrogen case hardening
( deepness 0,05 – 1,0 mm )
Temper
Annealing
( nitrogen cover gas )
Intermediate annealing

880 - 920

880 - 920
780 - 920
780 - 920
760 - 920

150 - 920
max. 930

max. 930

500 x 1.200 x 500

500 x 1.200 x 500
500 x 1.200 x 500
500 x 1.200 x 500
500 x 1.200 x 500

500 x 1.200 x 500
500 x 1.200 x 500

500 x 1.200 x 500

400

400
400
400
400

400
400

400

Hardening

Hardening press AH 650

Hardening furnace
computer controlled

Ipsen - rotary furnace
temperature - and C - level controlled

Hardening press AH 650

Hardening press PYE 40
(max. force 40 t)

Hardening furnace (Löcher)
and process control

Metallographical lab