Preparation method of foamed aluminum and alloy sandwich plate

A foamed aluminum and sandwich panel technology, applied in the direction of chemical instruments and methods, metal layered products, layered products, etc., can solve the problems of heat damage to foam core materials, achieve low processing costs, anti-aging and external impact And the effect of increased anti-fatigue ability and high structural precision

Inactive Publication Date: 2012-03-28
SUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This patent adopts the liquid phase diffusion connection method, which includes the process of high temperature heating and heat preservation for a period of time for diffusion, so it is inevitable that there will be more heating damage to the foam core material

Method used

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  • Preparation method of foamed aluminum and alloy sandwich plate
  • Preparation method of foamed aluminum and alloy sandwich plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment one: see figure 1 Shown, a kind of preparation method of aluminum foam and alloy sandwich panel comprises the following steps:

[0021] (1) Coating treatment of foamed aluminum and alloys and powder: select the prepared aluminum and alloy panels, aluminum and alloy panels and powder to be foamed, and press them on the rolling sub-unit to prepare rough foamed aluminum and alloy sandwich panels;

[0022] (2) Welding: Grind and clean the welded surface of the prepared blank aluminum foam and alloy sandwich panel, clamp and position the blank aluminum foam and composite sandwich panel through the positioning device, and then weld it, and then Obtain rough aluminum foam and alloy sandwich panels of required specifications and sizes;

[0023] (3) Foaming: put the foamed aluminum and alloy sandwich panels welded with blanks into a heating furnace for heating, the heating temperature is 300-600°C, and the heating time is 10-40 minutes;

[0024] (4) Cooling: Place t...

Embodiment 2

[0026] Embodiment two: technology is similar to embodiment one.

[0027] Select aluminum alloy as the panel, and after coating the powder, carry out large-scale deformation pressing on a large rolling mill or a large-tonnage press to prepare a sandwich panel blank; polish and clean the parts to be welded, and then clamp and position them in the center, using laser The welding equipment is used for welding, and then put into a heating furnace for heating. The temperature is slowly raised from 300°C to 600°C, kept for 20 minutes, and then the power is turned off quickly, thereby preparing the aluminum foam sandwich panel.

Embodiment 3

[0028] Embodiment three: technology is similar to embodiment one.

[0029] Take stainless steel as the panel, coat the powder and carry out large deformation pressing on a large rolling mill or a large tonnage press to prepare a sandwich panel blank; polish and clean the parts to be welded, and then clamp and position them in the center, using argon arc The welding equipment is used for welding, and then put into a heating furnace for heating. The temperature is slowly raised from 300°C to 600°C, kept for 40 minutes, and then the power is turned off quickly, thereby preparing the aluminum foam sandwich panel.

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Abstract

The invention discloses a preparation method of a foamed aluminum and alloy sandwich plate, which is characterized by comprising the following steps: (1) coating: selecting an aluminum and alloy panel, and compressing the aluminum and alloy panel and foaming powder to prepare a foamed aluminum and alloy sandwich plate blank; (2) welding: sanding and cleaning the welding surface of the foamed aluminum and alloy sandwich plate blank, clamping and positioning the foamed aluminum and alloy sandwich plate blank, and welding to obtain the foamed aluminum and alloy sandwich plate blank satisfying the specification and dimension requirements; (3) foaming: heating the welded foamed aluminum and alloy sandwich plate blank in a heating furnace at 300-600 DEG C for 10-40 minutes; and (4) cooling: cooling the heated foamed aluminum and alloy sandwich plate in the heating furnace, thus obtaining the well-welded foamed aluminum and alloy sandwich plate satisfying the specification and dimension requirements. The preparation method has the advantages of convenient preparation process and low processing cost; and the obtained foamed aluminum and alloy sandwich plate has fine performance.

Description

technical field [0001] The invention relates to a method for preparing foamed aluminum and alloy sandwich panels. Background technique [0002] Aluminum foam is a composite material composed of an aluminum or aluminum alloy matrix and pores. Compared with solid metal materials, it has low density, high specific strength, compressibility, and can absorb impact energy independent of the impact direction. It is shock-absorbing and sound-absorbing. , Electromagnetic shielding and other characteristics. [0003] The manufacturing process of metal foam materials usually adopts melting method and powder metallurgy method. If metal foam materials are used as structural parts, the problem of their connection with other materials must be considered. The most common method of connecting dense metals is welding, but Welding is very difficult for metal foam materials, because the solidification of the molten foam cell structure will reduce the volume during the welding process. In most...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F7/04B32B15/20B32B5/20
Inventor 陈长军张敏
Owner SUZHOU UNIV
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