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Crystalline glass, crystallized glass, crystallized glass article, and process for producing crystallized glass article
Crystalline glass, crystallized glass, crystallized glass article, and process for producing crystallized glass article
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机译:结晶玻璃,结晶玻璃,结晶玻璃制品以及结晶玻璃制品的制造方法
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摘要
In order to provide a crystallized glass which can be shaped by the redraw forming and a method of manufacturing a crystallized glass article by the redraw forming, the crystallized glass contains precipitated crystals with a maximum grain size not greater than 5 &mgr;m and a glass phase at a ratio of 10 to 85 vol %, and has a softening point lower than a melting point of a predominant precipitated crystal, and a property such that crystallization does not progress even when heated at a temperature higher than the softening point. In order to manufacture the crystallized glass article formed by the redrawing, the above- described crystallized glass is preformed and then subjected to the drawing while being heated to a temperature higher than the softening point.
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