Abstract: The invention concerns a filtration block for liquid alloys and metals, with a mechanical and physical-chemical effect.Agglomerating, for example by sintering, elements of an active mineral compound based on fluorides, results in a porous structure with a high degree of permeability, which acts both by a mechanical filtration effect and by a washing action in respect of the metal under the action of the active mineral compound which acts as a flux and provides for trapping inclusions.Use for the final purification of aluminium, aluminium-base alloys, magnesium and magnesium-base alloys.

Abstract: The invention concerns a filtration block for liquid alloys and metals, with a mechanical and physical-chemical effect.Consolidating, for example by sintering, elements of an active mineral compound based on fluorides, results in a porous structure with a high degree of permeability, which acts both by a mechanical filtration effect and by a washing action in respect of the metal under the action of the active mineral compound which acts as a flux and provides for trapping inclusions.Use for the final purification of aluminium, aluminium-base alloys, magnesium and magnesium-base alloys.

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.

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.

Abstract: The invention provides apparatus for treating a molten metal or alloy using liquid and solid flux, the invention comprising apparatus for passing the metal or alloy through a column provided with an outlet siphon lined with solid granules and liquid flux, at least a proportion of the granules comprising a solid flux having a melting point which is higher than that of the liquid flux and which is higher than the temperature of the metal to be treated. The solid granules can be introduced in a removable interchangeable cartridge. The invention finds utility in the advanced purification of aluminum-based alloys by elimination of ultimate inclusions.

Abstract: The invention provides a method and apparatus for treating a molten metal or alloy using liquid and solid flux, the invention comprising passing the metal or alloy through a column provided with an outlet syphon lined with solid granules and liquid flux, at least a proportion of the granules comprising a solid flux having a melting point which is higher than that of the liquid flux and which is higher than the temperature of the metal to be treated. The solid granules can be introduced in a removable interchangeable cartridge. The invention finds utility in the advanced purification of aluminum-based alloys by elimination of ultimate inclusions.

Abstract: The invention relates to a preparation of aluminum and its alloys for purification by utilizing a flux composition of MgCl.sub.2 and KCl to substantially remove alkali and alkaline earth metals, such as, Ca and Na, from the formulation of an aluminum preparation.

Abstract: The invention concerns the conversion of light alloys.By lubricating the die with a vitreous substance based on alkaline phosphate and alkaline tetraborate, alloys based on aluminium or magnesium can be hot-drawn at speeds of at least 100 meters per minute and up to 300 meters per minute.The invention can be applied to drawing aluminium alloys, particularly those of series 2,000, 5,000 and 7,000.