Method for preparing enhanced magnesium alloy composite board
A technology of magnesium alloy plate and magnesium alloy, which is applied in the field of hardness, change of metallographic structure, and increase of strength of non-ferrous metal plate, which can solve the problems of poor corrosion resistance, enhanced phase agglomeration, non-wetting, etc. Advanced, Strength-Enhancing Effects
Inactive Publication Date: 2013-09-18
TAIYUAN UNIV OF TECH
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Problems solved by technology
[0003] Commonly used composite materials preparation methods include metal casting, pressure casting, pressure impregnation, liquid metal impregnation, in-situ generation, powder metallurgy, etc. These methods still have technical deficiencies, such as the uniform dispersion of the reinforcing phase. , non-wetting problem, agglomeration problem of reinforcing phase, interface bonding problem between reinforcing phase and matrix, and the interface between metal matrix and reinforcing phase is responsible for transferring load from matrix to reinforcing phase, which affects the performance of materials Important factors, magnesium alloy plates also have insufficient mechanical properties, such as low strength, low hardness, and poor corrosion resistance. The metallographic structure must be processed to meet industrial applications.
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[0088] The present invention will be further described below in conjunction with accompanying drawing:
[0089] figure 1 As shown, it is the heating and pressing state diagram of the clad magnesium alloy composite plate.
[0090] Quantities of the chemical substances used in the preparation are determined according to a preset range, with millimeters, grams, and milliliters as measurement units.
[0091] The compression of the magnesium alloy composite plate is carried out on the press, which is completed in the open and close mold, under the state of heating 300 ℃, and the pressure is 400MPa;
[0092] The press is vertical, the bottom of the press is a base 1, and columns 5 and 6 are symmetrically arranged on the upper part of the base 1, and the upper part of the columns 5 and 6 is a top seat 2, and the upper part of the top seat 2 is a pressure motor 4. The upper middle position of the base 1 is a workbench 3, and an electric heater 13 is arranged in the workbench 3, and ...
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Abstract
The invention relates to a method for preparing an enhanced magnesium alloy composite board. Aiming at the conditions of loose metallographic structure, low strength and hardness, poor wear resistance, and poor corrosion resistance of a magnesium alloy board AZ31, the method comprises the steps as follows: firstly, the magnesium alloy board is coated by an aluminium board by adopting a pressing and roll-milling method; then the obtained aluminium board is heated and pressurized on a pressing machine in an open-close type die; after being coated and laminated, the obtained product is subjected to roll-milling plastic deformation and metallographic permeation on a rolling mill; and the compactness of the metallographic structure of the magnesium alloy composite board is enhanced by medium temperature tempering, so that the strength, hardness, wear resistance and corrosion resistance are improved, the strength reaches 450MPa and is improved by 89 percent, and the application range of the magnesium alloy composite board is enlarged. The preparation method has advanced process, faithful and accurate data and high practical value, can be used for carrying out industrial production, and is a very ideal magnesium alloy composite board enhancing method.
Description
technical field [0001] The present invention relates to an Al 2 o 3 The invention discloses a method for preparing a reinforced magnesium alloy composite plate, which belongs to the technical field of increasing the strength and hardness of nonferrous metal plates and changing the metallographic structure. Background technique [0002] Non-ferrous metal magnesium-based alloy is a light metal structural material, which is easy to be machined and has been widely used in the fields of electronics, aviation, aerospace, and instrumentation industries; due to its low strength, poor wear resistance and corrosion resistance, magnesium-based alloys are widely used in Industrial applications are greatly limited, but it has a good ability to combine with particulate matter, and oxides and ceramic particles are often doped in magnesium-based alloys to enhance the strength of the matrix and improve the mechanical properties of magnesium-based alloys. [0003] Commonly used composite ma...
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IPC IPC(8): B21C37/02B21D39/00B21B3/00
Inventor 樊建锋方爽许并社
Owner TAIYUAN UNIV OF TECH