Multi-layer composite thin plate and manufacturing method thereof

A multi-layer composite and composite plate technology, which is applied in metal rolling, manufacturing tools, metal rolling, etc., can solve the problems of poor corrosion resistance and low mechanical properties, so as to improve comprehensive mechanical properties, reduce surface oxidation, and refine Effect of Grain Size

Active Publication Date: 2021-12-31
CHANGSHA ADVANCED MATERIALS IND RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the above-mentioned technical problems, the present invention discloses a preparation method of a wide-width composite thin plate with good appearance and excellent performance, successfully preparing an aluminum / magnesium / aluminum multilayer composite thin plate with excellent bonding performance and mechanical properties, and solving the problem of magnesium alloy The single component plate has low mechanical properties, poor corrosion resistance and insufficient surface coloring ability; at the same time, compared with the double-layer composite plate, the multi-layer composite plate can completely distribute the aluminum alloy layer with better comprehensive performance on the outside, and the application range is wider. broad

Method used

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  • Multi-layer composite thin plate and manufacturing method thereof

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Effect test

Embodiment 1

[0040] S1. Material preparation: Prepare two 5052 aluminum alloy and AZ31B magnesium alloy cast rods with a diameter of 300mm and a length of 405mm, and process them to a diameter of 296mm and a length of 400mm; figure 1 For the S-shaped section shown, the distance d between the apex of the convex and concave tangent arcs and the line connecting the two ends is 40mm;

[0041] S2. Surface cleaning: polish the surface of the prepared magnesium alloy and aluminum alloy with sandpaper, remove the surface oxide black skin and wire cutting marks, after all the surface is polished, clean it with tap water, rinse off the surface grinding powder, and then air dry;

[0042] S3. Assembly combination: Combine the cleaned magnesium alloy and aluminum alloy according to the shape of the cylinder to make the layers closely fit, then hit the joint with a hammer to deform the joint and have a certain joint Force, so that the layers are not easy to fall off;

[0043] S4. Place the combined com...

Embodiment 2

[0049] S1. Material preparation: Prepare two 6061 aluminum alloy and AZ40M magnesium alloy cast rods with a diameter of 300mm and a length of 405mm, and process them to a diameter of 296mm and a length of 400mm; figure 1 For the S-shaped section shown, the distance d between the apex of the convex and concave tangent arcs and the line connecting the two ends is 40mm;

[0050] S2. Surface cleaning: polish the surface of the prepared magnesium alloy and aluminum alloy with sandpaper, remove the surface oxide black skin and wire cutting marks, after all the surface is polished, clean with alcohol, rinse off the surface grinding powder, and then air dry;

[0051] S3. Assembly combination: Combine the cleaned magnesium alloy and aluminum alloy according to the shape of the cylinder to make the layers closely fit, then hit the joint with a hammer to deform the joint and have a certain joint Force, so that the layers are not easy to fall off;

[0052] S4. Place the combined composit...

Embodiment 3

[0058] S1. Material preparation: Prepare two 5052 aluminum alloy and AZ31B magnesium alloy cast rods with a diameter of 300mm and a length of 405mm, and process them to a diameter of 296mm and a length of 400mm; figure 1 For the S-shaped section shown, the distance d between the apex of the convex and concave tangent arcs and the line connecting the two ends is 40mm;

[0059] S2. Surface cleaning: polish the surface of the prepared magnesium alloy and aluminum alloy with sandpaper, remove the surface oxide black skin and wire cutting marks, after all the surface is polished, clean it with tap water, rinse off the surface grinding powder, and then air dry;

[0060] S3. Assembly combination: Combine the cleaned magnesium alloy and aluminum alloy according to the shape of the cylinder to make the layers closely fit, and then pressurize with a hydraulic press, with a reduction of 1mm, and deformation occurs at the joint. There is a certain binding force, so that the layers are not...

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Abstract

The invention relates to the technical field of composite materials, in particular to a manufacturing method of a multi-layer composite thin plate. The manufacturing method of the multi-layer composite thin plate comprises the following steps that aluminum alloy and magnesium alloy materials are machined to be in the needed shape and size, obtained three layers of plate-shaped alloy can be combined to form a cylinder, the magnesium alloy in the cylinder is located between the two layers of aluminum alloy, and the attached surfaces of the two layers of aluminum alloy and the magnesium alloy are S-shaped arc surfaces; the prepared aluminum alloy and magnesium alloy materials are polished and then cleaned, and the cleaned alloy materials are assembled and combined so that the materials can be fixed to form the cylinder; an assembled blank is preheated, then extrusion forming is conducted, and magnesium-aluminum composite plates are obtained; the composite plates are sawn; the sawn plates are preheated, the preheated composite plates are stacked up and down, then multi-pass and multi-direction hot rolling is conducted, and the aluminum/magnesium/aluminum composite thin plate is obtained; and the rolled composite thin plate is subjected to hot-pressing flattening and then is cooled.

Description

technical field [0001] The invention relates to the technical field of alloy composite materials, in particular to a preparation method of a multilayer composite thin plate. Background technique [0002] Magnesium and its alloys have the advantages of high specific strength and stiffness, good thermal conductivity, excellent electromagnetic shielding and damping performance, and easy machining. They are the lightest metal structural materials in practical applications, and their density is only 2 / that of aluminum alloys. 3. 1 / 4 of steel is an ideal lightweight structural material. This remarkable low-density feature makes it have a very broad market in the fields of aerospace, automobiles, rail transportation and 3C. [0003] Although magnesium alloy has a significant light weight advantage, the electrode potential of pure magnesium is low, the oxide film on the surface is loose and porous, resulting in poor corrosion resistance, and compared with other metals, the absolute...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B3/00B21B1/38B21B47/00B21B47/02
CPCB21B3/00B21B1/38B21B47/00B21B47/02B21B2003/001B21B2001/386
Inventor 康心锴曾钢倪立波肖宏超黄硕
Owner CHANGSHA ADVANCED MATERIALS IND RES INST CO LTD
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