Diamond Systems Tritan Instrucciones de operaciones descargar pdf (Pagina 22)

autocast universal

230 Casting System Model casting Stand 1.9. 03 A 15

Setting time

Setting time is 40 minutes. Refractory should not be placed

in a pressure pot while setting.

Drying the model

70°C/158°F, for 40 minutes in a circulating air drying cabinet.

Note! Do not use higher temperatures, since this will

affect the surface smoothness.

Risk of damage to the surface (pasty).

If the model is dried in the preheating oven, check the

temperature and adjust if necessary.

Models with too high a moisture content prevent good

attachement of the wax or plastic patterns.

The environmentally compatible cold hardener Ökodur

(Ord.-No. 167-300-00) is used as model hardener.

After 40 minutes at 70°C/158°F in the drying cabinet, the

thoroughly dried duplicate model is immersed in the cold

Ökodur hardener liquid for 5-10 seconds. The hardened

model is then subsequently dried for 5-10 minutes in a

drying cabinet at 70°C/158°F.

The dried, hardened model should be waxed and invested

within 6 hours. If it stands for longer, the model surface

may absorb moisture from the atmosphere and become

soft. The original hardness of the model can be achieved

by returning it to the drying cabinet and drying it again

(70°C/158°F, 10 min).

Recommended waxing

If rematitan

casting metal is used for model casting,

the construction of the framework should have thicker

dimensions because of the different physical values

compared to that to CoCr alloys.

Full palate: thickness 0,8 mm

Horseshoe: thickness 0,8 – 1,0 mm

Anterior-posterior palatal bar: thickness 0,8 – 1,0 mm

Palatal strap: thickness 0,8 – 1,0 mm

Additionally reinforce lower jaw lingual bars 4.3 x 2.3 mm

(Ord.-No. 111-113-00).

All the figures are recommendations. Stabilization can also be

achieved by waxing-in reinforcements.

The wax and plastic patterns used should be suitable for

titanium casting.

Note! Do not use alien adhesives. To guarantee that the

titanium melt flows properly into the mould,

be sure the wax/plastic surface is smooth and clean.

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