Abstract: A valve for use in an apparatus for supplying molten metal by means of a siphon to a furnace. A valve formed by a tube provided with two flanges is placed at the upper part of the siphon, this tube extending by a certain length below the level of the flanges, so as to form an annular space with each of the branches of the siphon in which the gas is trapped during decanting, which prevents the gaskets from being in contact with the molten metal.

Abstract: The invention relates to the manufacture of aluminum alloy blanks containing a large quantity of silicon and designed for extrusion by impact.It consists in applying the method of casting with oriented cooling in the main patent to a hypereutectic silicon aluminum alloy which has previously been refined with phosphorus.An even distribution of the remarkably fine primary silicon crystals is obtained in this way.The invention is particularly applicable to the manufacture of linings for heat engines made of aluminum alloys.

Abstract: The invention relates to a process and an apparatus for molding metals, alloys and plastics material under low pressure. A gas which is inert with respect to the material to be molded is injected at a controlled rate and in a controlled volume into the compression/expansion chamber of the apparatus during certain phases of the molding operation, while compressed air is used for establishing pressure in the chamber or furnace accommodating the crucible which contains the liquid material to be molded. By virtue of the invention, it is possible to avoid oxidation phenomena and to improve the quality of the moldings.

Abstract: The invention concerns an improved injection device for molding machines with a cooling chamber for casting of non-ferrous metals and alloys. It is characterized by a two-part piston, one part of which slides freely and coaxially inside the other, forming a chamber in which a gas, neutral with respect to the metal to be cast, is compressed by the forward movement of the piston by virtue of a stop-pin, then liberated and expanded at the end of injection in a container of liquid metal where it causes a balancing force effect and improves the filling of the mold.This device makes it possible to eliminate the "ramroddings" which occur in single-piston machines at the end of injection and to obtain cast products which are free of defects.

Abstract: The invention relates to blanks made of aluminum or aluminum base alloys for wiredrawing by impact, and to their method of obtaining same. These new blanks are obtained by casting and cooling under pressure, and are characterized by a fine and homogeneous grain, a crystalline structure with axial symmetry and an almost complete absence of pinholes, occlusions of a gaseous nature, and basaltic crystalline formations. They are intended for the fabrication by impact wiredrawing of such containers as tubes, carrying cases, boxes, packaging material, aerosol bombs, extinguisher bodies, bodies of bottles or cartridges for compressed or liquefied gases.