[Effect of two different ring liner thickness on the precision of castings]

[Effect of two different ring liner thickness on the precision of castings] Research Abstract Details 

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[Effect of two different ring liner thickness on the precision of castings] Abstract Text:

Wei-xin Wang,Yong-lie Chao,

OBJECTIVE: To investigate the effect of two different ring liner thickness on the deformation of resulted castings. METHODS: GC No.2 casting rings (50 mm in height and 39.5 mm in diameter) were lined with two dry ceramic fiber liners with thickness of 0.70 mm and 0.45 mm. Plate-like wax patterns with pre-marked points were invested with a gypsum-bonded investment and the rings were cast with a silver-based dental alloy. The difference between the castings and the wax patterns at corresponding points was calculated to represent the dimensional change of the investment in the rings at different directions. RESULTS: The expansion of the investment in the ring was non-isotropic, with larger radial direction expansion than the axial direction expansion (P < 0.01). In the scope of this study, the effect of two different ring liner thickness on the casting precision was statistically non-significant (P > 0.05). CONCLUSION: The liners with two different thickness failed to eliminate non-isotropic deformation of the castings under the testing conditions of this study.

[Effect of two different ring liner thickness on the precision of castings] Publishing Authors By Initials

WX Wang,YL Chao,

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[Effect of two different ring liner thickness on the precision of castings] Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yi

VOLUME: 23

Page Numbers: 21-3

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ISSN: 1000-1182

DAY: 4

MONTH: Feb

YEAR: 2005

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LANGUAGE: chi

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Grant and Affiliation Information for [Effect of two different ring liner thickness on the precision of castings]

AFFILIATION: Dept. of Prosthodontics, West China College of Stomatology, Sichuan University, Chengdu 610041, China.

Country: China

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MEDLINETA: Hua Xi Kou Qiang Yi Xue Za Zhi

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