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Pressure infiltration preparing method for metal matrix composite material

A composite material and metal-based technology, applied in the field of composite material preparation, can solve problems such as high cost and achieve good material consistency

Active Publication Date: 2017-09-19
泰安蔚蓝金属陶瓷材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

3) Extrusion impregnation usually requires ultra-high pressure and a well-sealed mold, which is expensive

Method used

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  • Pressure infiltration preparing method for metal matrix composite material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] see figure 1 , in this embodiment, the high-melting-point ceramic component powder 7 and the low-melting-point metal component 6 of the metal matrix composite material are respectively made of silicon powder and aluminum to prepare AlSi60, and the theoretical volume ratio of silicon powder and aluminum is 6:4 , its preparation method is as follows:

[0029] 1) Take the silicon powder required for the preparation of materials, and obtain the silicon powder with a bulk density of 60% by proportioning the particles. For standby, take an aluminum block, wherein the materials of silicon powder and aluminum are taken according to the weight ratio of 1.07:1, Graphite paper 5 is lined inside the wrapping 4, and the aluminum block and silicon powder are sequentially loaded into the wrapping 4 with one end closed; after being loaded into the wrapping 4, the silicon powder is close to the opening end of the wrapping 4;

[0030] 2) use a sealing head 8 to close the open end of the...

Embodiment 2

[0036] see figure 1 , in this embodiment, the high-melting-point ceramic component powder 7 and the low-melting-point metal component 6 of the metal matrix composite are prepared from silicon carbide powder and aluminum, respectively, to prepare AlSiC70, and the material theoretical volume ratio of silicon carbide powder and aluminum is 7 : 3, its preparation method is as follows:

[0037] 1) Take the silicon carbide powder required for the preparation of materials, and obtain the silicon carbide powder with a bulk density of 70% through the particle ratio. For standby, take an aluminum block, wherein the silicon carbide powder and aluminum materials are taken according to the weight ratio of 2.3:1 Graphite paper 5 is lined inside the package 4, and the aluminum block and silicon carbide powder are sequentially packed into the package 4 with one end closed; after being loaded into the package 4, the silicon carbide powder is close to the open end of the package 4;

[0038] 2)...

Embodiment 3

[0044] see figure 1 , in this embodiment, the high-melting-point ceramic component powder 7 and the low-melting-point metal component 6 of the metal matrix composite material are respectively prepared from silicon carbide powder and magnesium to prepare MgSiC65, and the material theoretical volume ratio of silicon carbide powder and aluminum is 6.5 : 3.5, its preparation method is as follows:

[0045] 1) Take the silicon carbide powder required for the preparation of materials, and obtain a silicon carbide powder with a bulk density of 65% through the particle ratio. For standby, take a piece of magnesium block, wherein the material weight of silicon carbide powder and magnesium block is taken according to 2.84:1 Material; graphite paper 5 is lined inside the bag 4, and the magnesium block and silicon carbide powder are sequentially packed into the bag 4 with one end closed; after the bag 4 is loaded, the silicon carbide powder is close to the open end of the bag 4;

[0046] ...

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Abstract

The invention relates to the field of composite material preparing, and discloses a pressure infiltration preparing method for a metal matrix composite material. The method comprises the steps that materials are prepared, the materials are sequentially arranged in a wrapping sleeve, the wrapping sleeve is placed in a die, the die is placed in a hot press device, the position of the die in the hot press device is adjusted, preparing is conducted according to certain temperature and pressure parameters, and finally the metal matrix composite material with the good performance is obtained. According to the preparing technology, the composite material with components comprising the high volume fraction constituent elements hard to dissolve can be simply, rapidly and economically prepared; by means of the technology method, the obtained composite material has high stacking density and material consistency, and the interface bonding force between the constituent elements of the obtained composite material is high.

Description

(1) Technical field [0001] The invention relates to the field of composite material preparation, in particular to a pressure infiltration preparation method of a metal matrix composite material. (2) Background technology [0002] When preparing metal or metal-ceramic composite materials, it is often necessary to heat the temperature above the melting temperature of the high melting point component, and then prepare the required material by smelting or casting. This method requires a lot of heat energy and high cost. While equipment costs are invested, it is also difficult to prevent the abnormal growth of crystal grains during the preparation of materials. When the material is prepared by stirring casting, the uniformity of the prepared material is poor due to the poor wettability between the ceramic and the metal. When preparing materials by powder metallurgy, its advantages are that the composition is easy to adjust and the control is accurate. However, due to the low shr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/10B22D23/04
CPCC22C1/1036B22D23/04C22C1/1073
Inventor 辛红星李成祥辛海燕王太纪
Owner 泰安蔚蓝金属陶瓷材料有限公司
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