Method of making fine grained castings

Details Method of making fine grained castings Method of making fine grained castings

B - Operations, Transporting

22

D

B22D 27/18 (2006.01) B22D 27/20 (2006.01) B22D 31/00 (2006.01)

Patent

CA 2213924

A method of making a fine grained casting from molten metal comprising the step of providing a mould having a surface which defines a mould cavity, said surface having on at least part thereof a compound comprising a nucleation agent, melting the metal, heating the mould, pouring the molten metal into the heated mould cavity and solidifying the molten metal in the mould cavity.

Cette invention concerne une méthode de production de pièces métalliques coulées à grain fin qui comprend la mise en oeuvre d'un moule creux dont la surface intérieure est revêtue au moins en partie d'un composé comprenant un agent de nucléation; la fusion du métal, le chauffage du moule, la coulée du métal dans le moule chauffé et la solidification de métal dans le moule.

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