A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
COMPOSITION DE PLÂTRE POUR MOULES REFRACTAIRES
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).
COMPOSITION DE PLÂTRE POUR MOULES REFRACTAIRES
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).
COMPOSITION DE PLÂTRE POUR MOULES REFRACTAIRES
GYPSUM COMPOSITION FOR REFRACTORY MOULDS
GIPSZUSAMMENSETZUNG FÜR FEUERFESTE FORMEN
RETOT HÉLÈNE (author) / PETIGNY NATHALIE (author) / FOURDRIN EMMANUEL (author) / THIOLIERE STÉPHANE (author)
2019-03-06
Patent
Electronic Resource
French
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