A kind of aluminum-clad magnesium composite plate/profile and preparation method thereof

A composite plate, aluminum-clad magnesium technology, applied in the field of material processing, can solve the problems of many composite interface oxides, coarse material grains, complicated processes, etc., and achieve the effects of improving use defects, improving performance, and good ductility.

Active Publication Date: 2021-04-30
DALIAN JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current ordinary extrusion composite process and liquid casting process are deformed at high temperature, the process is complicated, there are many oxides at the composite interface, the grains of the material are coarse, and the performance is poor.

Method used

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  • A kind of aluminum-clad magnesium composite plate/profile and preparation method thereof
  • A kind of aluminum-clad magnesium composite plate/profile and preparation method thereof
  • A kind of aluminum-clad magnesium composite plate/profile and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] To prepare aluminum alloy pipes of a certain size, the outer diameter of the pipe is required to match the size of the extrusion wheel groove. For example, if the TLJ250 extrusion equipment is used, the width of the extrusion wheel groove is 8mm, and the aluminum alloy pipe with an outer diameter of 8mm is selected, and the inner diameter is not larger. limit. At the same time, a magnesium alloy core material is prepared, which can be magnesium alloy chips, magnesium alloy pellets, magnesium powder, or a magnesium core containing polymer fillers. Wash the surface of the magnesium alloy core material with dilute acid and alcohol to remove oil and oxides, and then dry it or clean the magnesium shavings. figure 1 It is a schematic diagram of the continuous extrusion forming process of aluminum-clad magnesium alloy sheet / profile, such as figure 1 As shown, feed the magnesium alloy core material into the aluminum alloy pipe and compact it with a press; send the aluminum all...

Embodiment 2

[0035]To prepare aluminum alloy pipes of a certain size, the outer diameter of the pipe is required to match the size of the extrusion wheel groove. For example, if the TLJ250 extrusion equipment is used, the width of the extrusion wheel groove is 8mm, and the aluminum alloy pipe with a diameter of 8mm is selected, and the inner diameter is not limited. . At the same time, prepare magnesium alloy rods or rods that match the inner diameter of the aluminum alloy. For example, if the inner diameter of the aluminum alloy is 5mm, the diameter of the magnesium alloy rod should be 4.5mm-4.9mm, so that the magnesium alloy rod can be inserted into the aluminum alloy pipe smoothly. ; Use alcohol to wipe the surface of the magnesium alloy core material to remove oil and oxides, and then use a metal brush for brushing to increase the composite effect of the composite interface. Insert the magnesium alloy rod material into the aluminum alloy pipe and compact it with a press. Send the alumi...

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Abstract

The invention discloses an aluminum-clad magnesium composite plate / profile and a preparation method thereof, belonging to the field of material processing for the preparation of aluminum, magnesium alloys and polymer composite materials. The method of the present invention includes cleaning the surface of the magnesium alloy core material for standby, inserting the obtained magnesium alloy core material into the aluminum alloy pipe material, leaving a certain gap between the magnesium alloy core material and the aluminum alloy pipe material, and pressing the magnesium alloy core material with a press The assembled and compacted material is sent to the extrusion wheel groove of the continuous extrusion machine, and the compaction wheel is adjusted to deform the rod material up and down, and the lateral expansion contacts the extrusion wheel groove to establish effective friction conditions. Under the rotation of the wheel, the aluminum rod material containing the magnesium core is introduced into the deformation zone, enters the 90° corner zone, and finally enters the extrusion die. The invention has the advantages of being completed at room temperature, without heating, high yield, non-toxic, odorless, and no discharge, and the produced product has good wear resistance and corrosion resistance.

Description

technical field [0001] The invention belongs to the field of material processing prepared by aluminum, magnesium alloy or polymer composite materials, and in particular relates to an aluminum-clad magnesium composite plate / profile and a preparation method thereof. Background technique [0002] Magnesium alloys have abundant reserves, which are metal structural materials with a large amount of reserves. The reserves of magnesium resources in my country rank first in the world. Magnesium has the characteristics of light weight, high specific stiffness and specific strength. Magnesium alloys have excellent shock absorption performance, good electromagnetic interference and shielding performance, and good thermal conductivity and recyclability. However, due to the HCP crystal structure of magnesium alloys, the plastic deformation ability at room temperature is poor, the elongation rate is low, the surface corrosion resistance is poor, and magnesium alloys are easy to oxidize and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C23/24
CPCB21C23/24
Inventor 郭丽丽汪建强运新兵
Owner DALIAN JIAOTONG UNIVERSITY
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