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Production method for particle reinforced aluminum matrix composite ingots

A composite material and production method technology, which is applied in the field of manufacturing cast particle reinforced aluminum matrix composite material blanks, can solve the problems of high cost, expensive equipment, complicated production process and the like

Active Publication Date: 2013-08-14
山西银光华盛镁业股份有限公司
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Problems solved by technology

[0007] The powder metallurgy method of particle-reinforced aluminum-based composite materials is used to manufacture large-sized ingots, which requires hot isostatic pressing equipment, which is expensive, complex in production process, and high in cost
Liquid aluminum infiltration is a low-cost method for metal matrix composites, but the adaptability of the method becomes difficult as the billet size becomes larger

Method used

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  • Production method for particle reinforced aluminum matrix composite ingots

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Embodiment Construction

[0045] 35%B 4 C p / 6061 Billet Manufacturing

[0046] The main indicators stipulated by relevant departments for the development method conditions of AP100 chrome-aluminum ceramic neutron absorbing plate include: chromium boron carbide particle reinforced aluminum matrix composite material, the plate size is 4370x190X (2.7-6.0) mm, the substrate is aluminum alloy 6061 (including certain chromium element), boron carbide content 31-45%, tensile strength not less than 275MPa, yield strength not less than 230MPa, elongation not less than 2%, 60-year lifespan (including accelerated corrosion, accelerated irradiation, short-term and long-term high temperature experiments, etc.). The trial production of nuclear fuel grid shielding plate adopts the following production process: powder mixing - ball pressing - sintering - vacuum - vacuum pressure impregnation - billet - hot extrusion - annealing - warm rolling - straightening - anodization -shear-product. In the above process, bill...

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Abstract

The invention relates to a production method for particle reinforced aluminum matrix composite ingots. The method comprises the steps of naturally stacking small spherical porous bodies in a casting die inner cavity, adopting a vacuum-pressure infiltration molten metal method to produce ingot blank, enabling the composite ingot blank to be subjected to thermal plasticity such as extrusion, rolling or forging, and obtaining particle reinforced metal matrix composite products. Not only is the production method simple in production process and low in production cost, but also the products have higher performance than products produced through a powder method.

Description

technical field [0001] A method for producing particle-reinforced aluminum-based composite ingots, which uses a liquid-phase method of vacuum-pressure infiltration to produce a cast slab from a packed bed of pellet preforms, especially for casting particle-reinforced aluminum-based composites for secondary processing. A method of manufacturing a composite blank. Background technique [0002] Metal matrix composites are known as the materials of the 21st century, and they are new materials that meet the comprehensive requirements of the rapid development of the information age. Metal matrix composites have the characteristics of other groups of raw materials on the basis of giving full play to the excellent performance of the matrix material, especially it can give full play to the synergistic effect of each component material. Particle-reinforced Al-matrix composites are a new high-tech material with the most extensive application prospects in metal matrix composites (MMC)....

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Application Information

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IPC IPC(8): B22D23/04C22C1/10
Inventor 李华伦许月旺吴江才文钰孟伟霞
Owner 山西银光华盛镁业股份有限公司
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