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1. 发明授权

US4520117A Refractory articles and the method for the manufacture thereof 失效
$Refractory articles and the method for the manufacture thereof$
标题翻译：耐火制品及其制造方法
公开(公告)号：US4520117A
公开(公告)日：1985-05-28
申请号：US360952
申请日：1982-03-23
申请人： David Mills , Alan D. Kington , Philip J. Lovell
发明人： David Mills , Alan D. Kington , Philip J. Lovell
IPC分类号： C04B35/64 , B22C9/12 , B22C9/20 , B22C13/08 , B22C21/08 , C04B35/622 , C04B39/08
CPC分类号： B22C9/12 , B22C9/20
摘要： In a process for making refractory articles, such as cores and moulds for use in casting metals, the articles are formed from dies using a refractory material mixed with a thermosetting resin. The articles are formed with the mixture heated to a softened state and the resin is cured. Thereafter the article has to be fired and problems have arisen with deformation of the articles during the firing process.With the present invention, the articles, 8, which as can be seen in FIG. 2 are mould segments, are bound into an assembly with a flexible refractory tape (15) which shrinks on firing to a greater extent than the articles, and thus pulls the assembly tightly together whereby each article provides support for the adjacent article and prevents distortion. The joint faces between the mould segments are thus held in tight abutment and for pouring metal into the mould, the firing cup is fitted and a coating of refractory slurry is brushed on without removing the tape to seal the assembly.The process is also applicable to the manufacture of cores to prevent bending during firing.
摘要翻译：在用于制造用于铸造金属的芯和模具的耐火制品的方法中，制品由使用与热固性树脂混合的耐火材料的模具形成。制品被加热至软化状态并使树脂固化。此后，物品必须被点燃，并且在烧制过程中物品变形引起问题。通过本发明，可以在图1中看到的物品8。 2是模具段，被结合成具有柔性耐火胶带（15）的组件，其在烧制时比制品更大程度地收缩，并且因此将组件紧紧地拉紧在一起，由此每个制品为相邻制品提供支撑并防止变形。因此，模具段之间的接合面保持紧密邻接，并且将金属注入模具中，安装烧杯，并且在不移除带以密封组件的情况下刷上耐火浆料涂层。该方法也适用于制造芯以防止烧制时的弯曲。

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