Interface metallurgical bonding aluminum foam slab and preparation method thereof

A foamed aluminum plate and interface metallurgy technology, applied in chemical instruments and methods, metal layered products, lamination, etc., can solve problems such as large influence, complex process equipment, adhesive deactivation and aging, and improve stability , The effect of simple process equipment

Active Publication Date: 2015-10-07
LIAONING RONGDA NEW MATERIALS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the prior art, there are mainly the following methods for manufacturing foamed aluminum sandwich structural panels: one is the adhesive bonding method, which mainly relies on the viscous properties of the adhesive, and combines dense metal plates, fiber reinforced plates and other materials with foam Aluminum-metal composite, under high temperature or special environment, the adhesive deactivates and ages, which has a great impact on the material properties, and its application is greatly restricted. At present, it is mainly used for the preparation of non-metallic surface plates such as marble; the second is Using the rolling-powder metallurgy method, the Chinese invention patent application with the application publication number CN104690275A discloses a method for preparing a foamed aluminum sandwich structure. According to the required alloy composition of the foamed aluminum core, aluminum powder and other alloy element powders are mixed The materials are mixed according to a certain ratio and placed between two panels, and then heated at an appropriate temperature until the core of the composite panel is melted,

Method used

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  • Interface metallurgical bonding aluminum foam slab and preparation method thereof
  • Interface metallurgical bonding aluminum foam slab and preparation method thereof

Examples

Experimental program
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Example Embodiment

[0022] Example 1

[0023] The density prepared by the melt foaming method is 0.15g / cm 3 , 5mm thickness of the foam aluminum plate with uniform porosity, remove the burrs with steel brushes, brushes, etc., and blow the surface of the foam aluminum plate with compressed air with a pressure of not less than 0.5MPa. Place the surface-treated foam aluminum plate in the interface heating furnace, and the surface of the foam aluminum core sheet to be treated is heated on the interface heating platform of the interface heating furnace. The interface heating platform is a high temperature resistant steel plate, and the surface of the high temperature resistant steel plate is brushed. Apply zinc oxide paint, heat the temperature to 1150℃, place the limit block on the heated foam aluminum core sheet to control the thickness of the skin, and apply a static pressure of 1.0Mpa to the limit block uniformly through the pressure machine. The surface of the foamed aluminum core sheet forms a skin...

Example Embodiment

[0024] Example 2

[0025] The density prepared by the melt foaming method is 1.0g / cm 3 , The thickness of 380mm foam aluminum sheet with uniform porosity, use steel brush, brush, etc. to remove burrs, and use compressed air with a pressure of not less than 0.5MPa to blow the surface of the foam aluminum sheet. Place the surface-treated foam aluminum plate in the interface heating furnace, and the surface of the foam aluminum core sheet to be treated is heated on the interface heating platform of the interface heating furnace. The interface heating platform is a high temperature resistant steel plate, and the surface of the high temperature resistant steel plate is brushed. Apply zinc oxide paint, heat the temperature to 1250℃, place the limit block on the heated foam aluminum core plate to control the thickness of the skin, and apply a static pressure of 5.0Mpa to the limit block uniformly through the pressure machine. One surface of the foamed aluminum core sheet forms a skin la...

Example Embodiment

[0026] Example 3

[0027] The density prepared by the melt foaming method is 0.55g / cm 3 , 150mm thick foam aluminum sheet with uniform porosity, use steel brushes, brushes, etc. to remove burrs, and use compressed air with a pressure of not less than 0.5MPa to blow the surface of the foam aluminum sheet. Place the surface-treated foam aluminum plate in the interface heating furnace, and the surface of the foam aluminum core sheet to be treated is heated on the interface heating platform of the interface heating furnace. The interface heating platform is a high temperature resistant steel plate, and the surface of the high temperature resistant steel plate is brushed. Apply zinc oxide paint, heat the temperature to 1200℃, place the limit block on the heated foam aluminum core sheet to control the thickness of the skin, and apply a static pressure of 3.5Mpa to the limit block uniformly by a pressure machine. One surface of the foamed aluminum core sheet forms a skin layer integrate...

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Abstract

The invention discloses an interface metallurgical bonding aluminum foam slab and a preparation method thereof. The slab is prepared by forming a uniform and integrated skin layer on a foamed aluminum core layer through an interface metallurgical method; the skin layer is a dense aluminum plate which is formed by a foamed aluminum core layer substrate undergone fusion, and the thickness of the skin layer is 0.5mm to 2mm. The preparation method comprises the steps of putting the pretreated foamed aluminum core layer substrate on an interface heating platform of an interface heating furnace, meanwhile, applying uniformly static pressure on a stop block through a pressing machine, forming the skin layer which is integrated with the core layer on the surface of a foamed aluminum core layer slab. The preparation of a foam aluminum sandwich panel of which the integrated structure is composed of the skin layer and the core layer is realized, the stability of performance of the foam aluminum sandwich panel is improved. The problem that the original foam aluminum sandwich panel is not stable is solved, and excellent properties of a foam aluminum sandwich structure is maintained.

Description

technical field [0001] The invention relates to the technical field of preparation of a porous metal foamed aluminum plate, in particular to an interface metallurgically bonded foamed aluminum sandwich structure plate and a preparation method thereof. Background technique [0002] As a new type of material, aluminum foam sheet has been popularized and applied in many fields, especially aluminum foam sandwich structure composite sheet, because of its light weight, high strength, heat insulation, non-combustible, high temperature resistance, anti-electromagnetic interference, etc. Physical and mechanical properties, can be used as sound-absorbing, structural parts, etc., widely used in automobile manufacturing, rail transit, aerospace and other fields, and has the advantages of isotropic core performance and low cost. [0003] In the prior art, there are mainly the following methods for manufacturing foamed aluminum sandwich structural panels: one is the adhesive bonding metho...

Claims

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Application Information

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IPC IPC(8): B32B15/01B32B15/20B32B37/06B32B37/10
CPCB32B5/18B32B15/016B32B15/20B32B37/06B32B37/10B32B2250/40B32B2266/045B32B2307/212B32B2307/304B32B2307/3065B32B2309/02B32B2309/12B32B2605/08B32B2605/10B32B2605/18
Inventor 朱德琳陈明
Owner LIAONING RONGDA NEW MATERIALS TECH CO LTD
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