for decreasing shrinkage of the mould, e.g. for investment casting

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 > for decreasing shrinkage of the mould, e.g. for investment casting

Compositions of refractory mould or core materials; Grain structures thereof (refractory materials in general C04B35/00); Chemical or physical features in the formation or manufacture of moulds > characterised by additives for special purposes, e.g. indicators, breakdown additives > for decreasing shrinkage of the mould, e.g. for investment casting