Inlay wax의 열팽창에 관한 연구
A study on Thermal expansion of Inlay waxes
남상용, 곽동주, 차성수,
소속 상세정보
남상용 ( Nam Sang-Yong ) - 대구보건대학 치기공과
곽동주 ( Kwak Dong-Ju ) - 대구보건대학 치기공과
차성수 ( Cha Sung-Soo ) - 진주보건대학 치기공과
KMID : 0362120080300020017
Abstract
The purpose of this study was to observe the thermal expansion of the inlay waxes at temperature. Inlay pattern wax shows not only a high coefficient of expansion but also a tendency to warp or distort when allowed to stand unrestrained. The thermal expansion of inlay waxes was tested according to the treatment conditions for 10 minutes at 40’C. The thermal expansion of inlay waxes at various temperatures was measured with an electro dial gauge. The results were as fellows: 1. It is shown that the rate of thermal expansion of wax A is 0.2%, wax B is 0.29%, wax C is 0.38%, and wax D is 0.22% at 40’C. 2. It is shown that the coefficient of thermal expansion of wax A is 106*10-6/’C , wax B is , wax C is 152*10-6/’C , and wax D is s116*10-6/’C at 40’C. 3. The thermal expansion of the inlay waxes at 40’C was shown to increase in the order of wax C, B, D, A.
키워드
Inlay wax; Thermal expansion; Coefficient of thermal expansion
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