DE873143C - Process for the production of alloys - Google Patents

Description

Process for making alloys The invention relates to a Process for the production of alloys, which are made from a light metal such as aluminum, Magnesium, Magnalium, on the one hand, and a component that when melted with the Light metal results in a brittle alloy, such as silicon, titanium or carbides of these, on the other hand consist of a mixture of the ingredients at such a low temperature is sintered so that the ductility of the light metal component is retained.

The invention thus consists in the fact that the components used for Partly ductile, but alloyed through, result in a brittle alloy by sintering if the temperature is sufficiently low, it becomes a deformable one. Alloy results in that then can be plastically deformed into a commodity.

The metal-ceramic, especially with hard metals, is a pre- and Known high sintering. But pre-sintering is about production a highly porous molded body, which is easy to remove due to its porosity can be edited.

With the new way of working, however, the first sintering process takes place a compact metal body is achieved that can already be used by itself. Pex Advantage of the new process compared to the production of alloys of the same composition by casting can be explained using the example of aluminum-silicon alloys: One made of soft aluminum and hard silicon powder at a relatively low temperature Alloy sintered if necessary with the application of pressure is by virtue of the soft Aluminum particles are sufficiently ductile to be transformed into any Shape, e.g. B. in sheet metal form: Objects can then be made from the sheet metal. of all kinds are manufactured in the usual way, one would make an alloy of the same kind Manufacture composition by casting, the cast alloy, since it is one further deformation not at all, as far as it is a plastic, and only with difficulty, as far as it is a machining one, is able to immediately switch to the final one Be brought into shape, which is not particularly useful "for" mass-produced articles. The net method also allows complete sagging through subsequent Heating to the final shape does not take place. the manufacture of bodies from Alloys that cannot be @-extracted at all by casting, their Components are partially or completely disconnected next to each other. Of course you have to the sintering temperature and sintering time are chosen so that the ductility of the ductile component (in the example aluminum) not by alloy (mixed crystal or connection formation) is lost. According to the invention, lag metals, Current collectors, welding rods, tools, vessels, in short metal objects of all kinds manufactured. will.

Claims (3)

PATE EN CLAIMS: e.g. Process for the production of alloys, those made of a light metal such as aluminum, magnesium, magnalium ,. on the one hand and a component that forms a brittle alloy with the light metal when it melts shows how silicon, titanium or carbides exist on the other hand, characterized in that that a mixture of the ingredients is sintered at such a low temperature that the ductility of the light metal component is retained. 2. The method according to claim r, characterized in that the sintered alloy undergoes a plastic deformation process is subjected by hammering, rolling, drawing and the like, optionally followed by a different kind of forming process. 3. The method according to claim 2, characterized in that the plastically formed and possibly also otherwise deformed alloy is subjected to heating to a higher temperature for the purpose of forming the less ductile alloy otherwise produced by melting. Cited publications: German Patent Specifications No. 4.81 2F2, 613 67r