2014
DOI: 10.4028/www.scientific.net/kem.609-610.557
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The Research of Gypsum Investment Mould Used as Forming Micro-Castings

Abstract: By applying ultrasonic solidification, gypsum based micro casting mold with different chemical compositions were sintered at different temperatures. The influence of processing parameters and sintering temperature on the microstructure and surface roughness were investigated. Meanwhile, the effect of sintering temperature on the bending strength was studied. The result showed that the nucleation rate of gypsum can be significantly improved under high temperature and pressure, which was caused by the effect of … Show more

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