Chlorine salt refining method of nonferrous metal

Abstract

The invention discloses a chlorine salt refining method for a nonferrous metal, and belongs to the field of nonferrous metals. The chlorine salt refining method comprises the following steps: (1) preparing the chlorine salt; (2) pressing the chlorine salt: utilizing a compressor to compress the powdered chlorine salt to be blocky; (3) refining molten aluminum: placing the blocky chlorine salt into the molten aluminum, and prohibiting stirring; (4) refining alloy: when the blocky chlorine salt is completely dissolved, adding blocky NaBF4, and ensuring the temperature of the molten aluminum to be higher than 740 DEG C. The chlorine salt refining method disclosed by the invention solves the problems that in the existing molten aluminum refining process, dehydration treatment is required to cause complicated working procedures, and the alloy structure refinement is not thorough due to defects of the method; the refining method provided by the invention has the advantages of being simple, low in cost and easy to process.

Description

technical field [0001] The invention belongs to the field of nonferrous metals, and more specifically relates to a method for refining molten aluminum. Background technique [0002] Aluminum and aluminum alloys are currently one of the most widely used and most economical and applicable materials. Aluminum has low density and low hardness, but it can be made into various aluminum alloys, such as duralumin, super duralumin, anti-rust aluminum, cast aluminum, etc. These aluminum alloys are widely used in manufacturing industries such as aircraft, automobiles, trains, and ships. In addition, space rockets, space shuttles, and artificial satellites also use a large amount of aluminum and its aluminum alloys. [0003] The conductivity of aluminum is second only to silver, copper and gold, and it is widely used in electrical appliance manufacturing industry, wire and cable industry and radio industry. Aluminum is a good conductor of heat, and aluminum can be used to manufacture...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems that existing molten aluminum needs to be dehydrated in the refining process, resulting in complex procedures and incomplete refinement of the alloy structure due to lack of methods, the present invention provides a chlorine salt refining method for non-ferrous metals. Reconfigure with chlorine salt, and change the relevant process, to achieve the purpose of simplifying the process and refining the alloy structure