Equipment for eliminating aluminum alloy surface defects through an aluminum oxide film

Abstract

The invention relates to the technical field of aluminum alloy manufacturing, and discloses equipment for eliminating aluminum alloy surface defects through an aluminum oxide film. The equipment comprises a supporting frame, a telescopic plate is movably connected to the surface of the supporting frame, a screw rod is movably connected to the position, close to one side of the telescopic plate, of the surface of the supporting frame, and rotating shafts are movably connected to the two ends of the screw rod; and sliding rails are slidably connected to the ends, away from the screw rod, of the rotating shafts, and inflow ports are formed in the surfaces of the sliding rails. Oxygen introduced by a ventilation box through an air dispersing pipeline exists in an airflow chamber, an aluminum melt reacts with the oxygen to form a compact aluminum oxide protection layer, the airflow chamber is gradually filled, after the airflow chamber is filled, the weight of the melt accumulated on the surface of a spoiler is larger than the elastic force of a spring, and the melt flows into and falls on the surface of a forming plate; and due to the existence of the aluminum oxide film in the forming plate, the temperature difference between the surface temperature of the forming plate and the melt temperature is small, and therefore the effects of reducing the temperature difference and avoiding cracks and burrs are achieved.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy production, in particular to a device for eliminating surface defects of an aluminum alloy by using an aluminum oxide film. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. [0003] Wrought aluminum alloys are mainly Al-Zn-Mg-Si alloys. Although there are many types of elements added, the content is small, so they have excellent thermoplasticity and are suitable for forging, so they are also called forged aluminum alloys. [0004] In the process of forging aluminum alloy, repairing damage is an important part of the aluminum alloy die forging process. Because the aluminum alloy is soft at high temperature, has high viscosity, poor fluidity, and is easy to stick to the mold, and various surface defect...

AI Technical Summary

Problems solved by technology

Because aluminum alloy is soft at high temperature, has high viscosity, poor fluidity, and is easy to stick to the mold, and various surface defects, such as folds, burrs, cracks, etc., will occur according to factors such as temperature and pressure. Yes, before proceeding to the next process, steps such as grinding, repairing, and cleaning surface defects are carried out, and these processing methods need to take the aluminum alloy out of the equipment, and it can only be carried out after cooling down, and the hardness of the aluminum alloy will decrease after cooling It becomes larger and more laborious to handle, so a device that uses aluminum oxide film to eliminate surface defects of aluminum alloy came into being

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