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    Aluminium alloy mfr. using prealloyed briquettes - contg. flux which evolves gas, ensuring uniform distribution of alloys in melt
    35.
    发明专利
    Aluminium alloy mfr. using prealloyed briquettes - contg. flux which evolves gas, ensuring uniform distribution of alloys in melt 未知

    公开(公告)号：FR2312570A1

    公开(公告)日：1976-12-24

    申请号：FR7517200

    申请日：1975-05-28

    Applicant: SERVIMETAL

    Inventor： GUERIT PIERRE ,  POLLET GILBERT

    IPC: C22B21/06 ,  C22C1/02 ,  C22C1/00 ,  C22C21/00

    Abstract: Pellets or briquettes contg. a pre-alloy or metal and employed in the prodn. of aluminium alloys contain in addn. to the finely divided metal or pre-alloy, a flux which evolves gas when placed in the molten bath of metal. The wt. ratio of metal to flux is pref. between 1:1 and 20:1, and the pref. flux is eiher (a) a halo-hydrocarbon which is solid at room temp. esp. hexachloroethane; or (b) a salt mixt. of alkali (ne earth) metal(s) and/or aluminium, at least one salt evolving gas in the molten bath. Simplifies the addn. and dissolution of alloying elements such as Mn, Cu, Fe, Si, Ni, Zn, Co, Cr, Bi, Cd, Zr, Be or B in molten aluminium to obtain the correct compsn. prior to casting despite differences in density and/or slow dissolution speeds. The rapid and uniform distribution of the allowing element(s) throughout the bath, obviates the slow and arduous hand stirring previously necessary.

    REFINING OF MOLTEN ALUMINIUM WITH VAPOURISED ORGANIC HALOGEN DERIVATIVES IN AN INERT CARRIER GAS
    39.
    发明专利
    REFINING OF MOLTEN ALUMINIUM WITH VAPOURISED ORGANIC HALOGEN DERIVATIVES IN AN INERT CARRIER GAS 未知

    公开(公告)号：AU8176882A

    公开(公告)日：1982-09-30

    申请号：AU8176882

    申请日：1982-03-22

    Applicant: SERVIMETAL

    Inventor： POLLET GILBERT ,  MANOUR PIERRE DU ,  GUERIT PIERRE

    IPC: C22B9/05 ,  C22B21/06 ,  C22C1/02

    Abstract: The invention relates to a process and an apparatus for the precise and continuous injection of a halogenated derivative, which is liquid at ambient temperature, into a liquid metal such as aluminum and aluminum-based alloys. The process involves withdrawing the halogenated substance from a tank, introducing it by means of a metering pump into a vaporizer which has been brought to a temperature at least equal to the vaporization temperature of the substance under the injection pressure, and entraining it in the vapor state by an inert gas stream towards an injection means opening into the center of the liquid metal.

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