Anode processing process for die casting aluminum alloy and oxidation device of die casting aluminum alloy

Abstract

The invention discloses an anode processing process for a die casting aluminum alloy and an oxidation device of the die casting aluminum alloy. The anode processing process sequentially comprises working procedures of pre-processing, primary washing, polishing treatment, secondary washing, oxidation treatment and ultrasonic washing. The oxidation device comprises a plurality of oxidation cavities.Water returning channels are arranged among multiple oxidation cavities. The water returning channels communicate with an electrolyte storage trough. The bottoms of the multiple oxidation cavities are provided with spraying modules communicating with the water returning channels. The spraying modules are connected with the electrolyte storage trough through a power pump, and the electrolyte storage trough is internally provided with a stirring device. According to the anode processing process for the die casting aluminum alloy and the oxidation device of the die casting aluminum alloy, due tothe fact that the electrolyte storage trough is internally provided with the stirring device which has a temperature adjusting function, components of an electrolyte are sufficiently mixed to be uniform, meanwhile, the temperature of the electrolyte is effectively controlled, and the oxidation film forming efficiency of a workpiece to be oxidized is improved.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to an anodic treatment process for die-cast aluminum alloy and an oxidation device thereof. Background technique [0002] As aluminum alloy is the most widely used metal structure material in industry, it has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. The process of using an aluminum alloy product as an anode in an electrolyte solution and using electrolysis to form an aluminum oxide film on its surface is called anodic oxidation treatment of aluminum alloys. Anodized aluminum alloy products are called aluminum alloy anode products. [0003] At present, in the process of anodizing, a uniform and dense oxide film is obtained by controlling the concentration of the electrolyte in the electrolytic cell, the oxidation time, and the temperature of the electrochemical reaction; however, the aluminum al...

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Problems solved by technology

[0003] At present, in the process of anodizing, a uniform and dense oxide film is obtained by controlling the concentration of the electrolyte in the electrolytic cell, the oxidation time, and the temperature of the electrochemical reaction; however, the aluminum alloy anodized by the traditional anodizing process The corrosion resistance of the film is not high, the dissolution of the oxi

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