Method for improving O-state bending performance of 5083 alloy

A performance and alloy technology, applied in the field of improving the bending performance of 5083 alloy O state, can solve the problem of reducing the bending capacity of 5083 aluminum alloy O state material, and achieve the effect of improving bending performance
CN113174500AActive Publication Date: 2021-07-27河南明晟新材料科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
河南明晟新材料科技有限公司
Publication Date
2021-07-27

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Abstract

The invention belongs to the technical field of aluminum alloy, and particularly discloses a method for improving the O-state bending performance of 5083 alloy. The method comprises the following steps of: adding prepared raw materials into a smelting furnace for smelting, and standing for refining, degassing, slagging-off and filtering to obtain molten aluminum, wherein the refining temperature is 730-740 DEG C; in the degassing process, controlling the hydrogen content measured by a launder to be less than or equal to 0.1 mL / 100g Al, and controlling the inclusion content of melt in an online launder to be less than 0.04 mm < 2 > / kg; casting the molten aluminum into an aluminum alloy cast ingot at the casting temperature of 710-720 DEG C and the casting speed of 45-55 mm / min; carrying out homogenization heat treatment on the aluminum alloy cast ingot; after preheating, sequentially carrying out multi-pass hot rough rolling and single-pass hot finish rolling to obtain a hot-rolled blank with the thickness of 10.0-12.0 mm; carrying out cold rolling on the hot-rolled blank at the high reduction rate to obtain a cold-rolled coiled material with the thickness of 3.0-5.0mm; and carrying out high-temperature rapid annealing, transverse shearing, straightening and slitting on the cold-rolled coiled material to obtain an aluminum alloy plate. The minimum relative bending radius of 90-degree bending of the 5083 alloy O-state plate can reach 0.5 t, and the surface is uniform, smooth and fine after bending.
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Description

technical field

[0001] The invention belongs to the technical field of aluminum alloy production, in particular to a method for improving the bending performance of 5083 alloy in O state. Background technique

[0002] 5083 aluminum alloy is a high-magnesium aluminum alloy, which has good strength, corrosion resistance, and machinability among non-heat-treatable alloys. It has a beautiful surface after anodizing treatment and good arc welding performance. It is widely used in marine applications such as ships, automobiles, and aircraft. Welding parts, subway light rail, pressure vessels that require strict fire protection, etc.

[0003] In aluminum processing, the minimum relative bending radius is usually used to measure the bending capacity of the aluminum alloy sheet when bending. The smaller the minimum relative bending radius, the better the bending capacity of the material. When the material is bent, the outer layer is stretched and the inner layer is compressed on the...

Claims

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