Preparation process for non-ferrous metal powder

Abstract

The invention discloses a preparation process for a non-ferrous metal powder, and the preparation process of the nonferrous metal powder comprises the following steps of: cleaning and filtering raw material, storing supernatant liquid in a reaction container, and adding phosphoric acid liquid and a reducing agent to the container so as to obtain a mixture of the liquid and the non-ferrous metal powder for standby; filtering the non-ferrous metal powder mixture in S1 through a filter screen with 12-30 meshes to obtain the non-ferrous metal powder, thermally treating the non-ferrous metal powderfor 1-2 hours, and placing in a molding machine to be pressed and formed; and obtaining a powdery non-ferrous metal; discharging the powdery non-ferrous metal in S2, feeding a metal electrode rod toa melting area for melting. The preparation process of the non-ferrous metal powder provided by the invention improves the purity and sphericity of the metal powder, and reduce the yield of hollow powder and satellite powder; the prepration process has the advantages of simple process, easy operation and low cost, and the prepared metal powder has a particle size of 0.5-50 microns, the O content of the powder is as low as 0.05-0.1%, so the preparation process has strong feasibility and application prospect.

Description

technical field [0001] The invention belongs to the field of new materials, and in particular relates to a preparation process of nonferrous metal powder. Background technique [0002] Non-ferrous metals Non-ferrous metals in the narrow sense are also called non-ferrous metals, which is a general term for all metals other than iron, manganese, and chromium. Non-ferrous metals in a broad sense also include non-ferrous alloys. Non-ferrous alloys are based on a non-ferrous metal (usually more than 50%) , an alloy formed by adding one or several other elements. Non-ferrous metals usually refer to all metals except iron (and sometimes manganese and chromium) and iron-based alloys. Non-ferrous metals can be divided into heavy metals (such as copper, lead, zinc, etc.) ), light metals (such as aluminum, magnesium), precious metals (such as gold, silver, platinum) and rare metals (such as tungsten, molybdenum, germanium, lithium, lanthanum, uranium), copper in non-ferrous metals is o...

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Problems solved by technology

[0003] However, when the existing non-ferrous metal powder is prepared, the purity and sphericity are poor, the process is complex, difficult to operate, and the cost is high. Therefore, we propose a preparation process for non-ferrous metal powder