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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 an quench in oil at 100° Celsius.
4.Wash and clean from oil.
5. Temper at 150 - 180° Celsius according to request 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 hardening (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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