System
description
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2019-10-16
4
–25
With phosphate-bonded investment you can go immediately to casting tempera-
ture. The flask can be heated up in 2 hours from 300 °C to e.g. 900 °C. (equivalent
to a ramp of 5 °C/min) and keep there 30 to 60 minutes (smaller flasks less time,
bigger flasks more time.
Phase 3
Bringing flasks to casting temperature. After reaching the casting temper-
ature in the furnace, please give flask a rest of 30
– 60 minutes (depending on
size) to ensure that set the temperature is also inside flask.
Figure 19: firing cycle for MC16
This “gentle” firing cycle needs maximum 7 hours, so from wax to casting it will take only
one day.
730
Casting temperature
300
2
2.5
4.5
5
Te
mp.
Zeit
in h
Firing cycle for MC16, gypsum bonded investment material
5.5
6.5
