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Magnesium-aluminum multilayer composite plate and machining method thereof

A multi-layer composite and aluminum alloy sheet technology, which is applied in the direction of chemical instruments and methods, lamination, lamination equipment, etc., can solve the problems of increasing processing workload, being vulnerable to corrosion, and difficult to achieve the ideal shape of the product plate, etc. Achieve the effect of easy control, good binding force and low processing cost

Active Publication Date: 2014-06-25
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing processing has the following shortcomings: 1. During extrusion, the billet flows around, and the final product shape is difficult to achieve an ideal state, which will increase the workload of subsequent processing; 2. The easily corroded magnesium alloy is partially exposed, which is easy to corroded

Method used

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  • Magnesium-aluminum multilayer composite plate and machining method thereof
  • Magnesium-aluminum multilayer composite plate and machining method thereof
  • Magnesium-aluminum multilayer composite plate and machining method thereof

Examples

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Effect test

example 1

[0039] The original size of the outer ingot billet (that is, the cladding substrate 1) is Φ80x110mm, which is 6082 alloy. at 560 0 C Homogenization treatment for 6 hours, dig a hole of Φ40x110mm in the round ingot, prepare AZ31 ingot of Φ40x110mm (ie core material 2), at 400 0 After C homogenization treatment for 10 hours, the steel balls on the surface are washed and then put into 6082 ingots. 0 C for 1h at 460°C in a mold measuring 3x56mm 0 C extruded to obtain the plate. Extruded products are relatively stable in size, the actual size is 3x58mm see figure 1 .

example 2

[0041] The original size of the outer ingot billet (that is, the cladding substrate 1) is a Φ80x110mm round ingot with an inner square hole of 42x42x110mm, which is a 6082 alloy. And a 110x42x14mm aluminum alloy plate 6082, at 560 0 C homogenization treatment for 6 hours, two 110x42x14mm magnesium alloy plates AZ31, 400 0 C. Homogenize for 10 hours, use mechanical processing to remove obvious defects, and then use a wire brush to polish the surface, and cross-stack them into the square holes of 6082 ingots. 400 in the furnace 0 C after 1.5h of heat preservation, in a mold with a size of 3x56mm at 400 0 C extruded to obtain the plate. The size of the extruded product is relatively stable, and the actual size is 2.8x60.2mm. See figure 2 .

example 3

[0043] The original size of the outer ingot billet (that is, the cladding substrate) is a Φ80x110mm round ingot with an inner square hole of 42x42x110mm, which is 6082 alloy. And three 110x42x6mm aluminum alloy plates 6082, at 560 0 C homogenization treatment for 6 hours, four 110x42x6mm magnesium alloy plates AZ31, 400 0C. Homogenize for 10 hours, use mechanical processing to remove obvious defects, and then use a wire brush to polish the surface, and cross-stack them into the square holes of 6082 ingots. 400 in the furnace 0 C after 1.5h of heat preservation, in a mold with a size of 3x56mm at 400 0 C extruded to obtain the plate. The size of the extruded product is relatively stable, and the actual size is 2.8x60.8mm. See image 3 .

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Abstract

The invention discloses a magnesium-aluminum multilayer composite plate and a machining method thereof. The composite plate consists of a wrapping base material with a cavity and a core material which is wrapped in the cavity of the base material, and the wrapping base material and the core material are integrated through an extruding process to form the composite plate. The cavity adopts a structure with two communicated ends or one communicated end. The machining method comprises the following steps of (1) arranging the cavity with two communicated ends or one communicated end in the magnesium alloy or aluminum alloy base material to form the wrapping base material, filling the core material into the cavity, wherein the core material is a magnesium alloy plate / bar, an aluminum alloy plate / bar or a composite core plate formed by stacking the magnesium alloy plate and the aluminum alloy plate in a separating manner from top to bottom; carrying out solution treatment at the temperature of 400 to 500 DEG C; and (2) finally extruding the wrapping base material which is provided with the core material to a plate with the needed size. The magnesium-aluminum multilayer composite plate is convenient to machine, and low in machining cost and the plate shape can be easily controlled.

Description

technical field [0001] The invention relates to the improvement of the composite board structure and processing method, in particular to a magnesium-aluminum multilayer composite board and a processing method thereof, belonging to the technical field of magnesium-aluminum composite boards. [0002] Background technique [0003] The density of magnesium at room temperature is 1.74g / cm 3 , the density of magnesium alloy is about 2 / 3 of that of aluminum alloy and 1 / 4 of that of steel. Magnesium alloy has many advantages such as low density, light weight, high dimensional stability, good electromagnetic shielding performance, good cutting and processing characteristics, good specific strength and specific stiffness, good thermal conductivity, good electrical conductivity and high recyclability, etc. These advantages have led to a sharp increase in the application and demand of structural and processing components. Magnesium alloy products can be applied to most 3C (computer, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/01B32B37/10B32B37/14
Inventor 信运昌聂建峰刘庆洪睿冯波吴洋
Owner CHONGQING UNIV
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