Verfahren und Vorrichtung zum Reinigen und Giessen von Leichtmetall

<PICT:1010418/C6-C7/1> In a method of purifying and casting a liquid light metal or light metal alloy, e.g. Al, Mg, or their alloys, the liquid metal 7, as it flows from a furnace to a mould 2, is conducted over a salt melt 6 of a salt or salts of higher specific gravity than that of the light...

Full description

Saved in:
Bibliographic Details
Main Author BURKHARDT,HANS,DR
Format Patent
LanguageGerman
Published 15.11.1966
Edition1
Subjects
APPARATUS THEREFOR
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
CHEMISTRY
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
PERFORMING OPERATIONS
POWDER METALLURGY
PRETREATMENT OF RAW MATERIALS
PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS
PRODUCTION AND REFINING OF METALS
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
Online AccessGet full text

Cover

More Information
Summary:<PICT:1010418/C6-C7/1> In a method of purifying and casting a liquid light metal or light metal alloy, e.g. Al, Mg, or their alloys, the liquid metal 7, as it flows from a furnace to a mould 2, is conducted over a salt melt 6 of a salt or salts of higher specific gravity than that of the light metal, primarily consisting of alkaline earth halides, wherein chlorine is electrolytically evolved below the base of the light metal by the passage of a direct current between an electrode 4 acting as a cathode at the bottom of the salt melt, and the light metal melt which forms the anode. The melt may consist of a mixture of barium chloride and calcium chloride. The counter electrode 4 may consist of a liquid metal which is capable of forming an alloy with the metal cathodically deposited from the salt melt, and which has a specific gravity exceeding that of the salt melt; e.g. barium, lead, tin. The current density used should preferably be above 5 amp./sq.dm., e.g. between 20 and 100 amps./sq.dm. In the form shown the salt melt 6 is contained in a bath 3, having a liquid metal cathode 4 which may be replenished via the feeder 13, and may be withdrawn via the opening 12. The liquid light metal 7 enters the bath via a runner 1, and flows therefrom via a runner 11 to a mould 2. Electric connections to the molten metal layers are provided by carbon contacts 8 and 5. A deflecting shield 10 determines the path of the metal 7 through the bath.
Bibliography:Application Number: CH19640006525