Diamond Systems Tritan Instrucciones de operaciones descargar pdf (Pagina 32)

autocast universal

230 Casting System Model casting Stand 1.9. 03 A 25

3. Finishing of titanium castings

Safety advices!

Abraded or separated titanium particles when

hot react with oxygen and produce sparks.

Caution: Risk of combustion and explosion.

Cool the workpiece with water.

If suction lines are used, change the filter paper

regularly. Warning: Otherwise fire hazard.

Warning! Always use trimming materials only for

processing titanium. Keep separate!

Cutting of sprues

Warning! Do not overheat the casting when separating.

Cool. No red heat.

For recommended separating discs, see page C 6.

Grinding

If possible, use carbide burs and trim in one direction.

Tungsten carbide burs are particularly suitable (see page C 6).

Grinding points can be used for smoothing surfaces

(see page C 6).

Note! Use carbide burs and grinding points only for

trimming rematitan

. Keep separate!

Preparation for ceramic bonding

Surfaces which are to be blended with ceramic must be

finished entirely with carbide burs. The amount of material

removed depends on the particular material thickness.

Afterwards, blast off the framework surface with aluminum

oxide and condition according to the ceramic manufacturer’s

instructions.

Rubber polishing

When rubber polishing, it is essential to avoid severe

heating of the polishing surfaces!

(For recommended rubber polishers, see page C 6.)

Uniform smoothing of the metal surface to be polished is

achieved if this has been ground with very fine emery paper

(500 –1000 grain) in a sandpaper holder.

Acid treatment

Do not place titanium castings in hydrofluoric acid.

Titanium is quickly damaged by hydrofluoric acid!

Danger

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Diamond Systems Tritan Instrucciones de operaciones Pagina 32