대한치과기공학회지 (Journal of Technologic Dentistry)
- 제19권1호
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- Pages.5-12
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- 1997
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- 1229-3954(pISSN)
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- 2288-5218(eISSN)
매몰방법에 따른 도재용 비금속의 주조성에 관한 연구
A Study on the Castability of Non-precious Porcelain Metal According to Investing Method
- Lee, In-Kyu (Dept. of Dental Laboratory Technology, Wonkwang Public Health Junior College) ;
- Kim, Yong-Won (Dept. of Dental Laboratory, College of Dentistry Wonkwang University)
- 발행 : 1997.11.15
초록
To examine the difference of castability of non -precious porcelain metal according to 2 type of investing method, experiments were carried out using the method of both existing investing method and the investment with spaces to the upper & lower parts of the ring. The following conclusion were obtained from the result. 1. Seperataly using the existing investment and with spaces to the upper & lower parts of the ring, 44 samples resulted in success with the former method and 52 with the latter out of 84 samples. 2. Under the existing investing method, 44 samples out of 56 total resulted in success when the temperature of the ring was
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