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Hardening instruction
for soft jaws
Material 16MnCr5 (1.7131)
1. Preheat to 500 ° Celsius.
2. Carburise at 930 ° Celsius.
Carburising depth is appr. 0,1 mm per hour.
3.Harden at 850 ° Celsius and quench in oil at 100 ° Celsius.
4.Wash and clean from oil.
5. Temper at 150 - 180 ° Celsius according to requested hardness
about 2 hours.
6.Regrind the serration in case of distortion.
Material C45 (1.0503)
The carbon necessary for hardening is already in the material. Partial
(such as clamping area) is possible by induction hardening.
A distortion of the contact surface can be eliminated or reduced in most
cases.
1. Partial preheating to 870 - 930 ° Celsius (1 - 3 mm deep).
2.Quench harden in emulsion.
3. Temper at 150 - 180 ° Celsius according to requested hardness
about 2 hours.
iJaws from Material C45 must be inspected for cracks
after induction hardening.
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