72.
    发明专利
    未知

    公开(公告)号:NO802511L

    公开(公告)日:1981-02-25

    申请号:NO802511

    申请日:1980-08-22

    Applicant: SERVIMETAL

    Abstract: The invention concerns an apparatus for active filtration and treatment of liquid metals and alloys and particularly to the purification of aluminum, magnesium, or alloys based on aluminum or magnesium, prior to molding. It comprises a detachable cartridge, closed at at least one end by a porous block based on grains of fritted flux and filled with grains of flux, solid at the temperature of the metal to be filtered. The cartridge may include a means for injecting an active or inert gas into the grains; it may be arranged in a heated, heat insulated ladle.

    78.
    发明专利
    未知

    公开(公告)号:CH596320A5

    公开(公告)日:1978-03-15

    申请号:CH1205076

    申请日:1976-09-23

    Applicant: SERVIMETAL

    Abstract: The invention relates to a preparation of aluminum and its alloys for purification by utilizing a flux composition of MgCl2 and KCl to substantially remove alkali and alkaline earth metals, such as, Ca and Na, from the formulation of an aluminum preparation.

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