Studies on the castability of Co-Cr alloy for cast plates. Part 1: The effects of sprue attachment direction to wax plates and the investment direction of refractory models.:Part 1 : The Effects of Sprue Attachment Direction to Wax Plates and the Investme
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概要
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Co-Cr alloy is used more frequently than Ni-Cr alloy as a non-precious alloy for cast plates in Japan. However, since the melting point of Co-Cr alloy is very high, about 1300°C, and since it oxidizes easily, a vacuum-pressure casting machine capable of melting this alloy in a reduced atmosphere has recently been developed.<BR>Using this vacuum-pressure casting machine, the authors studied the effects on the Co-Cr alloy of the attachment direction of sprues and the investment direction of refractory models.<BR>The results clarified that in the vacuum-pressure casting method, sprue attachment direction and the investment direction of refractory models have a significant effect (p <0.01) on the castability of Co-Cr alloy.
- 日本大学歯学部の論文
日本大学歯学部 | 論文
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