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Aluminum alloy sandwich panel and preparation method thereof

A technology of aluminum alloy and sandwich panel, which is applied in the field of foam metal materials, can solve the problems of low production efficiency, high raw material cost, poor uniformity of hole structure, etc.

Active Publication Date: 2021-09-17
GRANGES ALUMINUM SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has poor pore structure uniformity, and to a certain extent, is restricted by high raw material cost, complex process, low production efficiency, high price, and difficulty in popularization and application.

Method used

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  • Aluminum alloy sandwich panel and preparation method thereof
  • Aluminum alloy sandwich panel and preparation method thereof
  • Aluminum alloy sandwich panel and preparation method thereof

Examples

Experimental program
Comparison scheme
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preparation example Construction

[0089] Preparation method of aluminum alloy sandwich panel

[0090] In another aspect, the present invention relates to a method for preparing the sandwich panel of the present invention, comprising the steps of:

[0091] (1) prepare the aluminum alloy melt of foamed aluminum alloy core layer,

[0092] (2) pouring the aluminum alloy melt into a mold and solidifying under pressure to obtain a prefabricated body of the foamed aluminum alloy core layer,

[0093] (3) rolling and compounding the prefabricated body with the initial aluminum alloy panel to obtain a composite panel,

[0094] (4) Foaming the composite board.

[0095] Step (1) preparing the aluminum alloy melt of the foamed aluminum alloy core layer

[0096] In one embodiment, preparing the aluminum alloy melt of the foamed aluminum alloy core layer in step (1) may include the following steps:

[0097] (1.1) adding a tackifier to the initial aluminum alloy melt of the foamed aluminum alloy core layer,

[0098] ...

Embodiment approach

[0134] 1. An aluminum alloy sandwich panel, comprising a foamed aluminum alloy core layer and an aluminum alloy panel,

[0135] Wherein, the foamed aluminum alloy core layer comprises

[0136] Based on the total weight of the foamed aluminum alloy core layer,

[0137] 6-11% Si by weight,

[0138] 0-5% by weight Cu,

[0139] 0-3% by weight of Mn,

[0140] 0-4% by weight Zn,

[0141] 0-0.8% by weight of Mg,

[0142] The rest is Al and unavoidable impurities; the melting point of the aluminum alloy panel is above 645°C.

[0143] 2. The sandwich panel of Item 1, wherein the foamed aluminum alloy core layer contains

[0144] Based on the total weight of the foamed aluminum alloy core layer,

[0145] 7.0-10.7% by weight Si, and / or

[0146] 0-4.5% by weight Cu, and / or

[0147] 0-2% by weight of Mn, and / or

[0148] 0-3% by weight Zn, and / or

[0149] 0-0.6% by weight of Mg.

[0150] 3. The sandwich panel of item 1 or 2, wherein the foamed aluminum alloy core layer also cont...

Embodiment 1

[0205] 1. Put titanium hydride powder with a particle size of 200-300 mesh in a crucible, put it into a crucible furnace and raise the temperature to 510°C, keep it warm for 70 minutes, take it out and air-cool it to room temperature to make a foaming agent.

[0206] 2. Put the components of the initial aluminum alloy used for preparing the core layer shown in Table 1 in a crucible in a heating furnace, and raise the temperature to melt the aluminum alloy to form an aluminum alloy melt. Under the stirring condition of 800-1200rpm, add a strontium modifier to the initial aluminum alloy melt for modification treatment (the strontium modifier is an aluminum-strontium alloy, wherein the strontium content is 10% by weight of the total weight of the aluminum-strontium alloy, the amount of strontium modifier 50ppm of the total weight of the aluminum alloy melt). Control the temperature of the modified aluminum alloy melt at 700° C., and then add the viscosifier metallic calcium in an...

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Abstract

The invention relates to an aluminum alloy sandwich panel which comprises a foam aluminum alloy core layer and aluminum alloy panels. The foam aluminum alloy core layer comprises the following components based on the total weight of the foam aluminum alloy core layer: 6-11 wt% of Si, 0-5 wt% of Cu, 0-3 wt% of Mn, 0-4 wt% of Zn, 0-0.8 wt% of Mg and the balance of Al and inevitable impurities; wherein the melting point of the aluminum alloy panel is more than 645 DEG C. The invention further relates to a preparation method of the aluminum alloy sandwich panel and the aluminum alloy sandwich panel obtained through the method.

Description

[0001] This application claims the priority of the Chinese application No. 202010181212.X filed on March 16, 2020, entitled "An Aluminum Alloy Sandwich Panel and Its Preparation Method", the entire contents of which are incorporated herein by reference. technical field [0002] The invention belongs to the technical field of foamed metal materials, and in particular relates to an aluminum alloy sandwich panel and a preparation method thereof. Background technique [0003] The sandwich composite panel with foamed aluminum alloy as the core layer and aluminum alloy as the panel not only has excellent mechanical properties such as light weight and high specific stiffness, but also has many functional characteristics such as damping and vibration suppression, energy absorption and impact resistance, and electromagnetic shielding. The foamed aluminum alloy sandwich panel is widely used in new energy vehicles, high-speed trains, subway trains and other fields, and is an effective m...

Claims

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Application Information

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IPC IPC(8): B32B15/01B32B15/20C22C1/08C22C21/02B21B1/38B22D25/00B32B5/18
CPCB32B15/017B32B5/18C22C21/02C22C1/08B22D25/005B21B1/38B21B2001/386C22C1/086
Inventor 曹卓坤蒋勇敏高凤华
Owner GRANGES ALUMINUM SHANGHAI CO LTD