Process for the preparation of a refiner to make, the refiner to make and process for the preparation of semi-finished products and castings of aluminium

摘要

The invention concerns a process for the preparation of a grain refiner contained within an aluminum matrix, comprising intimate mixing of at least one reaction product of titanium and aluminum contained within an aluminum matrix and at least one reaction product of boron and aluminum contained within an aluminum matrix thereby obtaining solid state reaction products by reacting the reaction products by solid state reaction.