Compound antioxidant for producing copper powder through water atomization method

Abstract

The invention discloses a compound antioxidant for producing copper powder through a water atomization method. The compound antioxidant comprises, by weight, 1-10 parts of benzotriazole, 1-10 parts of benzene sulfonic acid sodium salt, 1-10 parts of sodium lauryl sulphate, 2-10 parts of OP surfactants, 3-25 parts of glycerinum and 20-50 parts of water. According to the compound antioxidant for producing the copper powder through the water atomization method, by means of the component formula, the matching ration is reasonable, in the process of preparing the copper powder through the water atomization method, the free radical is complemented while film forming is conducted on the surface of the copper powder, the double-protection function is achieved, the good antioxidant effect is achieved, the antioxidant ability of the copper powder is improved effectively, and the problem that the oxygen content of copper power produced in a water atomization mode is higher is solved; in the process that the copper power is produced through the water atomization method, the antioxidant is added, the oxygen content of the copper powder produced through the water atomization method is lower than 0.08%, the oxygen content meets the national standard, the problem that the oxygen content of the copper powder obtained after water atomization is conducted is higher is solved, and the shelf life of the copper powder is prolonged.

Description

technical field [0001] The invention relates to the technical field of copper powder production, in particular to a composite antioxidant for producing copper powder by a water mist method. Background technique [0002] Copper powder is one of the basic raw materials in powder metallurgy. It is widely used in many fields such as automobiles, motorcycles, oil-impregnated bearings, electrical alloys, electronic information, electrical carbon products, oil drilling, chemical synthesis, and diamond products. With the development of powder metallurgy industry at any time, the application scope of powder metallurgy is expanding day by day, and the requirements for the type and quality of powder are getting higher and higher. At present, the electrolysis method is mostly used to produce copper powder, but the electrolysis method has serious environmental pollution, high energy consumption, high cost, single product, and poor fluidity of electrolytic copper powder, which cannot meet...

AI Technical Summary

Problems solved by technology

However, in the process of copper powder produced by the traditional water atomization process, it is easy to oxidize during the injection process, which will lead to high oxygen content in the produced copper powder and coarse powder particles, which cannot meet the demand