Preparation method of aluminum alloy plate

A technology of aluminum alloy sheet and plate, applied in the direction of metal rolling, metal rolling, metal processing equipment, etc.

Active Publication Date: 2021-01-12
DALISHEN ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art, and provide a preparation method of aluminum alloy plate, which controls the internal compressive stress generated in th...

Method used

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  • Preparation method of aluminum alloy plate
  • Preparation method of aluminum alloy plate

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Experimental program
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Embodiment 1

[0048] 1. After the ingot with low residual stress is obtained, uniform heating is carried out to achieve the rolling condition, and the temperature of the ingot is not allowed to have an obvious temperature gradient (the temperature error is less than 5°C).

[0049] 2. Using a special rolling process, equal pressure, equal rolling force, and horizontal roll shape disturbance, during the rolling process, the ingot extends consistently in the length direction, and at the same time extends consistently in the length direction at different points in the transverse direction The amount of compression deformation is consistent, which reduces the inconsistency of compressive stress caused by inhomogeneity in the rolling process, which cannot be eliminated or inconsistency after elimination in the subsequent process, resulting in inconsistency in the stress of the plate inside the plate. In a reasonable rolling process, the disturbance of the rolls is well controlled, so that the ingo...

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Abstract

The invention discloses a preparation method of an aluminum alloy plate. The method comprises the steps that S1, a cast ingot is obtained; S2, the cast ingot is subjected to homogenizing heating, so that the temperature deviation of the whole cast ingot is smaller than 5 DEG C; S3, the cast ingot treated in the step S2 is rolled, and a plate with the needed thickness is obtained; and S4, the plateis annealed, so that the structure size and orientation in the plate are consistent. Internal pressure stress generated in the machining process of an aluminum alloy material is controlled, stress values of all points of the plate uniform in deformation are close and low in deviation, and therefore the requirement for the aluminum alloy plate in the high-end equipment production process is met.

Description

technical field [0001] The invention relates to a method for preparing an aluminum alloy plate. Background technique [0002] At present, the application of aluminum alloy in industry is increasing year by year, but the quality of finished products is uneven. However, high-end aluminum alloy materials mainly rely on imports, and the production of high-quality aluminum alloy sheets has become a top priority. With the continuous progress and development of science and technology, aluminum alloy profiles continue to develop in the direction of large-scale, integrated, uniform and high-quality structures and properties. Therefore, the preparation of high-performance aluminum alloys has become a hot spot of concern. [0003] Disadvantages of the traditional process: the composition of the ingot is complex, the distribution of the second phase is uneven, and the size of the grains in the ingot is different, resulting in large macro stress inside the ingot. The segregation in th...

Claims

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Application Information

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IPC IPC(8): B21C37/02B21B1/22B21B3/00C22F1/04C21D9/46C21D1/26
CPCB21C37/02B21B1/222B21B3/00C22F1/04C21D9/46C21D1/26B21B2001/225B21B2261/04B21B2265/12B21B2265/10B21B2275/02B21B2003/001
Inventor 曹旷曹洪正
Owner DALISHEN ALUMINUM
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