| 摘要 |
<p>A thermocouple positioning device (50) is provided for a directional solidification casting apparatus having a furnace (10) for receiving a mold (20a) disposed on a chill plate (30) which is carried on a movable ram (40). The thermocouple positioning device (50) comprises a support bracket (52) disposed on the ram (40) for movement therewith. The bracket (52) includes an upstanding slide member (62) and a slideway member (64) disposed on the slide member (62) and having a thermocouple holder (86) thereon. A stop member (112) is disposed in fixed position below the furnace (10) for releasably engaging a stop engaging member (100) on the slideway member (64) as the ram (40) is raised to position the mold (20a) in the furnace (10). Engagement between the stop member (112) and the stop engaging member (100) as the ram (40) is raised positions the thermocouple (92) in a temperature sensing position relative to the mold (20a). The thermocouple (92) remains at the temperature sensing position as the mold (20a) is withdrawn from the furnace (10) to effect directional solidification.</p> |
