A kind of production process of 6 series alloy rod for anodic oxidation

Abstract

The invention relates to a production process of a 6-series alloy rod for anodic oxidation. A production process for 6-series alloy rods for anodic oxidation, including: (1) batching; (2) refining; (3) blowing: after blowing the molten alloy aluminum, stand it at 730-750°C; (4 ) on-line degassing; (5) double filtration; (6) casting: after the alloy aluminum liquid passes through the oil-air sliding casting flow plate, cooling water casting is carried out. The production process of a 6-series alloy rod for anodic oxidation according to the present invention takes the current domestic advanced oil-gas sliding casting production line as the core, uses 99.85% industrial pure aluminum liquid, adopts semi-continuous casting and homogenization treatment in the furnace , the method of double filter equipment, and finally can be used to prepare anodized 6 series aluminum alloy rod products, the internal grain distribution of the casting rod is uniform, the content of aluminum alloy slag is small in high-magnification microstructure inspection, and the surface of the alloy rod has no segregation tumor, cold Waiting phenomenon.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloys, and in particular relates to a production process of a 6-series alloy rod for anodic oxidation. Background technique [0002] Anodic oxidation refers to the method of forming an oxide film on the surface of a metal under the action of an external current in a suitable electrolyte. Aluminum alloys for anodizing are rolled or extruded into foils, the surface of which is pretreated, and then undergoes processes such as anodizing, sealing, and coloring (or using the original color of aluminum to obtain a matte effect) to become a decoration or shell. And other materials, widely used in automotive decoration materials, 3C electronic housings and furniture and other fields. At present, domestic high-end automotive decoration materials mainly rely on imports, and there are no mature production technologies and suppliers in China. [0003] At present, the biggest production problem of aluminum ...

AI Technical Summary

Problems solved by technology

The main reason for many defects is that the aluminum melt contains a lot of slag and high gas content during the melting of ingredients, which leads to defects such as black lines and white lines in the subsequent extrusion or rolling process

Second, more effective furnace refining and purification processes outside the furnace are required, especially the technology of filtering and slag removal outside the furnace. The cost of equipment purchase and maintenance is relatively high, but the removal effect on small-sized inclusions is limited.

Third, the qualified rate of finished products is low

However, the on-line equipment of this technical solution is a single-rotor on-line and a ceramic foam filter plate, and the degassing and slag removal capacity is limited

[0007] In view of this, the present invention proposes a new production process of 6-series alloy rods for anodic oxidation, which can solve the problem of poor surface quality of 6-series alloy rods, and can also solve the problems of internal structure uniformity and slag content

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