Diamond Systems Tritan Instrukcje Operacyjne Pobierz pdf (Strona 18)

autocast universal

230 Casting System Crowns and bridges Stand 1.9. 03 A 11

Preheating Cycle – Alternatives

Attention: The end temperature of (870–900°C /

1598–1652°F) is very important for a proper fit.

Depending on oven size and calibration, the tem-

perature may have to be adjusted, up or down.

Higher end temperature = wider fit

Lower end temperature = tighter fit

Attention: Every package of investment contains a separate

instruction sheet that gives recommendations for

end temperature and holding time, according to

that particular batch.

Night preheating with or without

microwave drying:

Attention: For night preheating, use only Trinell Mixing

Liquid!

(The Trinell Special Speed Liquid can only be

used for reduced and full speed preheating.)

In order to increase stability, we strongly recom-

mend using the microwave!

Place the casting ring, with the sprue facing down into the

cold oven, preheat in 2 steps and cool down phase.

Preheating 1. Step (heat acceleration 4 °C / 39 °F)

250°C /482°F 60 min. holding time

Preheating 2. Step (heat acceleration 4 °C / 39 °F)

870–900°C /1598–1652°F

20 min. holding time

(End Temperature)

Cool down 3. Step

400°C/752°F 30 min.holding time

Casting Temperature:

400°C/752°F

We recommend to reduce the end temperature to

approximately 10°C/50°F for the telescope and conical crown

technique. Additional adjustments to the expansion can be

made by extending (higher expansion) or reducing (lower

expansion) the holding time at the end temperature.

For the telescope and conical crown technique, use only

night preheating not speed preheating.

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Diamond Systems Tritan Instrukcje Operacyjne Strona 18