autocast universal
®
230 Casting System Crowns and bridges Stand 1.9. 03 A 12
Weekend Operation:
Attention: For weekend operation, use only Trinell mixing
liquid!
(Use Trinell Special Speed Liquid only for reduced
and full speed preheating.
When using overnight preheating microwave drying is
imperative as it increases ring stability.
After microwave drying, place casting, with the sprue
facing down, into the cold oven and program the oven for
preset preheating at 2 steps and cool down phase.
Complete Speed Operation with
Microwave Drying
Attention: At Speed Operation use only Trinell Special
Speed Liquid! (The Trinell Mixing Liquid should only
be used for night preheating).
In exceptional cases, the size 3 casting can be placed in the
oven at the end temperature. Slight variations in the fit
and stability are then unavoidable.
After microwave drying and a 5 minute resting phase, place
casting in the horizontal position in the 870 – 900 °C / 1598
– 1652 °F / 20 min. holding time preheated oven.
After completed holding time, cool off casting at 700 °C /
1292 °F in a closed oven.
At 700 °C / 1292 °F remove casting and cool at room tempe-
rature.
Casting temperature between 200 – 400 °C / 392 – 752 °F.
Reduced Speed Operation with
Microwave Drying
Attention: At reduced speed operation, use only Trinell
Special Speed Liquid! (The Trinell Mixing Liquid should
only be used for night preheating)
After microwave drying and a 5 minute resting phase, place
casting with sprue facing down into a 400 °C / 752 °F
preheated oven.
Constant preheating at maximum acceleration rate to
870 – 900 °C / 1598 – 1652 °F and a 20 minute holding time.
Cool Down Variations:
1. Cool down casting at 400 °C / 752 °F with oven closed
2. Cool down casting at 700 °C / 1292 °F thereafter at
400 °C / 752 °F with opened door
3. Transfer castings after cool down of 700 °C / 1292 °F
into a preheated oven of 400 °C / 752 °F.
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