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公开(公告)号：US4975225A
公开(公告)日：1990-12-04
申请号：US320204
申请日：1989-03-07
CPC分类号： C04B35/622 , B22F3/222 , B28B1/007 , B28B7/342 , C04B38/04
摘要： A light-weight yet sturdy ceramic article, is manufactured by initially forming at least one fugitive core including a main portion and at least one holding portion projecting from the main portion and then positioning the fugitive core in a mold cavity bounded by a multitude of bounding surfaces so that the holding portion holds the main portion at predetermined spacings from all of the bounding surfaces. This is followed by filling the mold cavity around the fugitive core with a dense slip constituted by ceramic or metal particles in mixture with a liquid medium to form a ceramic or metal preform embedding the fugitive core in its interior and freezing the ceramic or metal preform, then the fugitive core is dissolved and escapes from the interior of the frozen ceramic or metal preform and finally the ceramic preform is converted into the ceramic article.
摘要翻译： 通过最初形成至少一个包含主要部分和至少一个从主要部分伸出的保持部分的止血芯，然后将短暂的核心定位在由多个边界限定的模腔中，制造轻巧而坚固的陶瓷制品 使得保持部分将主体部分保持在与所有边界表面预定间隔。 随后，将模腔周围填充模具芯，其中以由液体介质混合的陶瓷或金属颗粒构成的致密滑动形成陶瓷或金属预成型件，以将短效芯嵌入其内部并冷冻陶瓷或金属预制件， 然后将短暂的核心溶解并从冷冻陶瓷或金属预制件的内部逸出，最后将陶瓷预制件转化成陶瓷制品。
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公开(公告)号：US4956037A
公开(公告)日：1990-09-11
申请号：US275838
申请日：1988-11-25
申请人： Alexander M. Vivaldi
发明人： Alexander M. Vivaldi
IPC分类号： G02B7/18
CPC分类号： G02B7/1815 , Y10T156/1062 , Y10T156/1064
摘要： An optical component having a plurality of cooling channels in a surface region underlying its effective surface is manufactured by first forming a precursor of the optical component consisting of a main body which carries the effective surface, and a plurality of solid fugitive material cores embedded in the main body at the desired locations of the cooling channels, and then converting the precursor into at least a portion of the optical component by consolidating the main body, and removing the cores from the cooling channels, such as by melting the fugitive material of the cores.
摘要翻译： 在其有效表面下方的表面区域中具有多个冷却通道的光学部件通过首先形成由承载有效表面的主体构成的光学部件的前体，以及嵌入在该有源表面的多个固态短效材料芯 主体在冷却通道的期望位置处，然后通过固定主体将前体转化成光学部件的至少一部分，并且从冷却通道去除芯，例如通过熔化芯的短暂材料 。
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