Procédé de préparation d'alliage mère à base d'aluminium destiné à l'affinage du grain

Verfahren zur Herstellung einer Aluminium-Kornverfeinerer-Vorlegierung

Production of aluminum grain refiner


A process is described for producing an aluminum grain refiner, such as Al-Ti-B grain refiner. Molten aluminum is continuously flowed as a bottom layer along a substan­tially horizontal or slightly inclined trough. Titanium or boron compounds reducible by aluminum or a mixture of such compounds is added to the surface of the aluminum layer such that a discrete separate layer of these is formed on top of the aluminum layer. Reaction between the aluminum and the titanium and/or boron compounds occurs along the interface between the layers and this reaction may, if desired, be aided by providing relative movement between the layer of molten aluminum and the layer of titanium and/or boron compounds. A surface layer of spent reaction product is removed and a stream of aluminum alloyed with titanium and boron is collected.




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Patent Citations (4)

    Publication numberPublication dateAssigneeTitle
    DE-2217897-A1November 02, 1972
    DE-3109025-A1September 30, 1982Metallgesellschaft AgVerfahren zur herstellung von aluminiumvorlegierungen mit hochschmelzenden metallen
    GB-1268812-AMarch 29, 1972Anglo Metallurg LtdImprovements in or relating to alloys containing boron and aluminium
    US-3857705-ADecember 31, 1974Nippon Light Metal Res LaborSmall grain promoting aluminum-titanium-boron mother alloy

NO-Patent Citations (0)


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    CN-101300367-BSeptember 01, 2010土耳其科学技术研究理事会Process for producing a grain refining master alloy
    EP-0521580-A1January 07, 1993KBM-Metaalindustrie B.V.Process for the preparation of a grain refiner
    EP-0732414-A1September 18, 1996KBALLOYS, Inc.Aluminum base alloy and method for preparing same
    US-7177384-B2February 13, 2007Mitsubishi Heavy Industries, Ltd.Aluminum composite material, manufacturing method therefor, and basket and cask using the same
    US-7988764-B2August 02, 2011TubitakProcess for producing a grain refining master alloy
    WO-2007052174-A1May 10, 2007TubitakProcede de fabrication d'un alliage-mere a recuit d'affinage structural
    WO-9417217-A1August 04, 1994London & Scandinavian Metallurgical Co LimitedAlloying additive
    WO-9733008-A1September 12, 1997Vladimir Mikhailovich FedotovProcede de production d'alliages a base d'aluminium et de silicium