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YRIGOYENN FRANK P
Original Assignee
YRIGOYENN FRANK P
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Application filed by YRIGOYENN FRANK PfiledCriticalYRIGOYENN FRANK P
Priority to ES523829ApriorityCriticalpatent/ES523829A0/en
Publication of ES8404884A1publicationCriticalpatent/ES8404884A1/en
Publication of ES523829A0publicationCriticalpatent/ES523829A0/en
Moulds suitable for casting any metal are made by (1) activating a very finely-divided ceramic material by means of a catalyst, (2) combining with a liq. agglutinant consisting of a colloidal suspension of silica in alcohol, (3) consolidating the mould in a rubber-like state, (4) separating the hardened model of the mould, and (5) igniting the alcohol component of the mould to form micro-fissures which give better resistance of the refractory material to thermal shock.
ES523829A1983-07-041983-07-04
A PROCEDURE FOR THE MANUFACTURE OF CAST MOLDS OR PRECISION CASTING OF ANY KIND OF METAL.
GrantedES523829A0
(en)