燒還溫度와 再 鑄造金屬 含量比가 Ni-Cr系 非貴金屬 合金의 可鑄性에 미치는 影響
The Influence on Castability of Nickel-chromium alloys According to Burn-out Temperature and Recast Content Ratio
광주보건전문대학논문집 1986년 11권 1호 p.73 ~ 78
소속 상세정보
朴孝秉
KMID : 0615219860110010073
Abstract
The castability of base metal alloys for dental casting is influenced by burn-out temperature and recast percentage.
Burn-out temperatures for casting are set at 200℉ interval from 1000℉ to 1800℉.
According to recast metal percent in new cast alloy, metal alloys are tested.
The results are as follows:
1. In the new alloy (100%), the castability is the most.
2. In the burn-out temperature in 1600-1800℉, castability of 100% new alloy was more four times than of 50% new alloy plus 50% recast alloy.
The using of 50% new alloy and 50% recast alloy, therefore, was unlike in cast ability.
3. The burn-out temperature in 1600℉, castability of 100% new alloy was more than four times in soaking 20 minutes, but there was no any difference at 1800℉.
4. It is investigated that the optimal burn-out temperature is 1600℉ for the C & B alloy.
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