Diamond Systems Tritan Betriebsanleitung PDF herunterladen (Seite 38)

autocast universal

230 Casting System Accessories and replacement parts Stand 1.9. 03 A 31

Recognizing the point of casting

After igniting the electric arc, the melting process can be

monitored through the darkened viewing window.

At low output settings, the second darkened window can

be pushed aside in order to improve the visual monitoring.

Attention: At a higher output > 50%, the second safety

viewing glass has to remain, otherwise eye damage may

occur due to the bright beam of light.

Melting process:

Controlling the output

The power output of the casting machine is controlled by

an inverter from 5% to 100% by use of a potentiometer.

The predetermined output setting does not only depend on

the melting temperature of the alloy, but also the quantity

of the casting metal.

Due to excessive cooling down of the casting muffle, the

melting time should not exceed 40–50 seconds. An auto-

matic safety device tips the crucible after a maximum of

90 seconds.

The suggestions that are mentioned with reference to the

output settings, and depending on the melting amount,

represent rough guidelines. The output may deviate at

different melting temperatures. At the same time, the

condition of the melting electrode influences the perfor-

mance of the electric arc.

Electrodes that become dull after many castings decrease

the performance.

If necessary, the output can be corrected either up or down

during the melting process.

Average setting “non-precious metal”: 50%

Average setting “precious metal”: 15%

Melt Quantity Melt Output

Non-precious

alloys 1 casting piece –6 g approx. 30–35%

up to 2 casting pieces 6 –12 g approx. 40%

3 to 6 casting pieces 13–36 g approx. 50%

7 to 8 casting pieces 37–48 g approx. 55%

9 casting pieces 49 –54 g approx. 60–65%

Precious alloys up to approx. 10 g approx. 10%

10 g – 30 g approx. 15%

30 g – 50 g approx. 20%

50 g – 70 g approx. 25%

70 g – 95 g approx. 30–35%

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