STUDIES ON SLIP CASTING GYPSUM MOULDS, (II)
نویسندگان
چکیده
منابع مشابه
Gypsum-bonded investment and dental precision casting (IV) transformation of III-CaSO4 to II-CaSO4.
The degree of III-CaSO4 to II-CaSO4 transition was estimated on wet specimens, 25 mm in diameter and 50 mm high, prepared from a gypsum-bonded investment for quick casting. After 30 min from mixing the specimens were heated in a 700 degrees C furnace until a specimen temperature of 200 degrees C to 700 degrees C was reached. The estimation was made by measuring mass changes of the specimens bef...
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In the present work it has been shown that FEA software like ANSYS may play an important role in predicting cast defect before the actual casting. Transient thermal analysis and Couple-Field analysis in ANSYS can predict temperature distribution and thermal stress distribution in the casting after solidification very accurately. This fact has been proved by validating a transient thermal analys...
متن کاملGypsum - bonded Investment and Dental Precision Casting ( IV ) Transformation of III - CaS 04 to II - CaS 04
Farzaneh AGHAJANIi'2, Zulia HASRATININGSIHi'3 and Toshiko MORIi'4 iBiomaterials Science Unit, Faculty of Dentistry, The University of Sydney, 2 Chalmers Street, Surry Hills, NSW 2010, Australia2Department of Dental Materials, Faculty ef Dentistry, Tehran University of Medical Science, Tehran, Iran aDepartment of Dental Materials, Faculty ef Dentistry, Padjadjaran University, Jalan Sekeloa Selat...
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With the enlarging of industrial desulfurization, the amount of FGD gypsum is increasing rapidly. The preparation of alpha-calcium sulfate hemihydrate (α-HH) is one of the biggest concerns for FGD gypsum reclamation. The influence of mixed chlorate solution of Mg-Ca-Na concentrations (5-30 wt%) and FGD gypsum concentrations(5-30 wt%) by hydrothermal salt solution method at atmospheric were inve...
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ژورنال
عنوان ژورنال: Journal of the Ceramic Association, Japan
سال: 1950
ISSN: 0009-0255,1884-2127
DOI: 10.2109/jcersj1950.58.383