B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
Ameliorations apportees aux procedes de moulage pour l'obtention de moules de fonderie et en particulier a la mise en óoeuvre des barbotines coulables ou semi-coulables.