A kind of method that magnesium-aluminum intermetallic compound reinforces foamed aluminum
A technology of intermetallic compounds and enhanced foam, which is applied in the field of aluminum foam reinforced by magnesium-aluminum intermetallic compounds, can solve the problems of poor wear resistance, failure to achieve the expected effect, and low strength of porous aluminum foam, so as to expand the scope of application, The effect of improving the compressive strength and increasing the strength
Inactive Publication Date: 2015-12-09
TAIYUAN UNIV OF TECH
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Problems solved by technology
[0002] Cellular aluminum foam is a non-ferrous metal alloy with low density, sound absorption and heat insulation, and excellent impact resistance. It has good application value and is often used in aviation, aerospace, machinery, and electronics. However, cellular foam Aluminum has low strength and poor wear resistance, which greatly limits its industrial application. In order to make aluminum foam widely used, it is necessary to improve its mechanical properties and increase its strength.
[0003] There are many ways to strengthen foamed aluminum, such as filling foamed aluminum with polymer materials, changing the structure and composition, improving strength and impact resistance; such as doping rare earth elements, doping rare earth elements in the foamed aluminum matrix, and improving porosity The strength of the structure and reinforcement itself, but these methods have some disadvantages and deficiencies, and cannot achieve the expected effect
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[0052] The present invention will be further described below in conjunction with accompanying drawing:
[0053] figure 1 As shown in the figure, it is the state diagram of aluminum foam under pressure by the seepage of molten magnesium-aluminum intermetallic compound. The position and connection relationship of each part must be correct, and the ratio should be adjusted according to the quantity, and the operation should be carried out in sequence.
[0054] Quantities of chemicals used in preparation are determined in pre-set ranges in grams, milliliters, centimeters 3 is the unit of measurement.
[0055] The magnesium-aluminum intermetallic compound melt percolation foam aluminum is carried out on the press, and it is completed in the cylindrical mold in the process of heating and heat preservation, argon bottom blowing, and pressure application;
[0056] The press is vertical, the bottom of the press is a base 14, the left part of the base 14 is provided with a column 15, ...
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Abstract
The invention relates to a method for enhancing foamed aluminum through a magnalium intermetallic compound. The method comprises the steps of aiming at the situations of low strength and poor anti-press ability of foamed aluminum block, filling the magnalium intermetallic compound in the aluminum block, and performing heating smelting, heat-preservation seepage pressing, and cutting and forming to obtain the magnalium intermetallic compound-enhanced foamed aluminum block, the anti-pressure strength of the foamed aluminum can be enhanced, the energy absorption characteristic of the foamed aluminum can be kept, when the compression rate achieve 10% to 60%, the compression strength can be improved by 3.2 times, the application range of the foamed aluminum can be extended, and the method is a desirable method for enhancing the foamed aluminum.
Description
technical field [0001] The invention relates to a method for reinforcing foamed aluminum with a magnesium-aluminum intermetallic compound, which belongs to the technical field of non-ferrous metal reinforcement preparation and application. Background technique [0002] Cellular aluminum foam is a non-ferrous metal alloy with low density, sound absorption and heat insulation, and excellent impact resistance. It has good application value and is often used in aviation, aerospace, machinery, and electronics. However, cellular foam Aluminum has low strength and poor wear resistance, which greatly limits its industrial application. In order to make aluminum foam widely used, it is necessary to improve its mechanical properties and increase its strength. [0003] There are many ways to strengthen foamed aluminum, such as filling foamed aluminum with polymer materials, changing the structure and composition, improving strength and impact resistance; such as doping rare earth elemen...
Claims
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IPC IPC(8): C22C1/08C22C21/00
Inventor 卫英慧李永刚侯利锋杜华云郭春丽韩鹏举
Owner TAIYUAN UNIV OF TECH