Method and device for casting dental prostheses has airtight low-pressure gas chamber, crucible, hollow mould, heater to heat up crucible, turning device to rotate airtight chamber and positioning sensor

摘要

An airtight chamber (10) with low-pressure gas has a crucible (18) and a hollow mould (23). The crucible's open upper end and an opening in the injection moulding channel (26) of the hollow mould lie opposite each other. A heater (16) heats up the crucible. A turning device (29-34) rotates the airtight chamber. A positioning sensor (36,37) detects a preset angle in the airtight chamber. A time-delay memory device stores a preset delay.