Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Gypsum composition for refractory moulds
The invention relates to a mineral composition for the preparation of foundry moulds, comprising: (a) from 20% to 90% by weight of plaster, (b) from 10% to 80% by weight of a mineral component based on silica and/or alumina, and (c) from 0.5% to 4.8%, preferably from 1.5% to 4.5% and in particular between 2% and 4.5% by weight, of a mineral powder having a thermal conductivity (X), at 20° C., of greater than 15 W/(m.K) and a specific surface area of greater than 10 m2/g, these percentages being relative to the total weight of the sum of the components (a), (b) and (c).
Gypsum composition for refractory moulds
The invention relates to a mineral composition for the preparation of foundry moulds, comprising: (a) from 20% to 90% by weight of plaster, (b) from 10% to 80% by weight of a mineral component based on silica and/or alumina, and (c) from 0.5% to 4.8%, preferably from 1.5% to 4.5% and in particular between 2% and 4.5% by weight, of a mineral powder having a thermal conductivity (X), at 20° C., of greater than 15 W/(m.K) and a specific surface area of greater than 10 m2/g, these percentages being relative to the total weight of the sum of the components (a), (b) and (c).
Gypsum composition for refractory moulds
RETOT HELENE (Autor:in) / PETIGNY NATHALIE (Autor:in) / FOURDRIN EMMANUEL (Autor:in) / THIOLIERE STEPHANE (Autor:in)
21.08.2018
Patent
Elektronische Ressource
Englisch
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