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Preparation method of continuous fiber reinforced metal matrix composite

A composite material and continuous fiber technology, applied in the field of metal matrix composite material preparation, can solve the problems of limited promotion and application, high cost, expensive reinforcement fiber, etc., and achieve the effect of high cooling rate, easy operation, and alleviating interface reaction.

Inactive Publication Date: 2012-08-15
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] After decades of hard work and exploration, fiber-reinforced aluminum matrix composites have made great progress in basic theory, preparation technology, performance level, etc., and are the first to be applied in aerospace, aviation and weapons. The application of fiber-reinforced aluminum-based composites is also increasing day by day. However, because fiber-reinforced aluminum-based composites are not only expensive for reinforcing fibers, but also have unique manufacturing processes and high costs. , so this composite material is mostly in the form of simple components with linear or two-way bearings, such as plates, rods, pipes, etc. The size and shape of the product have great limitations, which greatly limits its promotion and application, in order to further promote the application of fiber-reinforced aluminum matrix composites, efforts must be made to reduce costs

Method used

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  • Preparation method of continuous fiber reinforced metal matrix composite
  • Preparation method of continuous fiber reinforced metal matrix composite
  • Preparation method of continuous fiber reinforced metal matrix composite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] For the composite material to be prepared, carbon fiber with a diameter of 15 μm is selected as the reinforcing fiber, and 7050 aluminum alloy is selected as the matrix material.

[0021] The equipment is evacuated to 1×10 -3Pa, the vacuum chamber is filled with argon gas of 20kPa as a protective atmosphere, and the aluminum alloy is melted in the crucible according to the composition ratio of 7050 aluminum alloy. After purification, the aluminum alloy melt is introduced into the blowing chamber through the guide hole, and the guide is closed at the same time Through the inert gas pipe at the upper end of the blowing chamber, the blowing gas of 50kPa is introduced to blow the 7050 aluminum alloy melt at 680°C onto the surface of the fast-moving copper substrate (500mm long and 200mm wide in the moving direction) from the nozzle. The horizontal moving speed of the aluminum alloy is 20000mm / s, the copper substrate is under the nozzle of the spray device, the vertical dist...

Embodiment 2

[0023] For the composite material to be prepared, SiC fiber with a diameter of 100 μm is selected as the reinforcing fiber, and 7055 aluminum alloy is selected as the matrix material.

[0024] The equipment is evacuated to 2×10 -3 Pa, the vacuum chamber is filled with argon gas of 40kPa as a protective atmosphere, and the aluminum alloy is melted in the crucible according to the composition ratio of 7055 aluminum alloy. After purification, the aluminum alloy melt is introduced into the blowing chamber through the guide hole, and the guide is closed at the same time. Through the inert gas pipe at the upper end of the blowing chamber, the blowing gas of 80kPa is passed into the blowing gas, and the 7055 aluminum alloy melt at 690°C is sprayed onto the surface of the fast-moving copper substrate (500mm long and 220mm wide in the moving direction) from the nozzle. The horizontal moving speed of 10000mm / s, the copper substrate is below the nozzle of the spray device, the vertical d...

Embodiment 3

[0026] The composite material to be prepared selects W fibers with a diameter of 150 μm as reinforcing fibers, Zr 41.25 Ti 13.75 Cu 12.5 Ni 10 Be 22.5 The bulk amorphous alloy is the base material.

[0027] The equipment is evacuated to 1×10 -3 Pa, the vacuum chamber is filled with 60kPa argon as a protective atmosphere, according to Zr 41.25 Ti 13.75 Cu 12.5 Ni 10 Be 22.5 The composition ratio of the bulk amorphous alloy is to melt the aluminum alloy in the crucible. After purification, the aluminum alloy melt is introduced into the blowing chamber through the guide hole. At the same time, the guide hole is closed, and the inert gas pipe at the upper end of the blowing chamber is passed into 120kPa. The blowing gas blows the 760°C bulk amorphous alloy melt from the nozzle to the surface of the fast-moving copper substrate (600mm long and 240mm wide in the moving direction), the horizontal moving speed of the copper substrate is 5000mm / s, and the copper substrate is i...

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Abstract

The invention relates to a preparation method of a metal matrix composite, in particular to a method for preparing a continuous fiber reinforced metal matrix composite by a laminating technology. The method comprises the following steps: injecting the molten metal onto a continuous fiber surface in the presence of inert gas, and rolling to obtain firm combination between the continuous fiber and the matrix, wherein the molten metal injected latterly is compounded with the metal layer injected first, and the combination between the fiber and the matrix is further improved during the rolling process; and repeating the steps until the continuous fiber reinforced metal matrix composite with designated thickness is obtained. The invention has the advantages that the operation is simple and theindustrial scale production is easily realized; as the cooling rate is high, the matrix metal has relatively excellent performance, and the interface reaction between the fiber and the metal matrix is alleviated; and moreover, the matrix of the composite can be crystalline metal or alloy and also can be blocky amorphous alloy under proper conditions.

Description

technical field [0001] The invention relates to a method for preparing a metal-matrix composite material, in particular to a method for preparing a continuous fiber-reinforced metal-matrix composite material by lamination technology. Background technique [0002] Since the advent of metal matrix composites, they have received extensive attention for their excellent performance. Among them, the research, development and application of fiber-reinforced metal matrix composites are the earliest and have the best mechanical properties. For example, fiber-reinforced aluminum matrix composites have specific strength, High specific stiffness, axial tensile strength and wear resistance, excellent high temperature resistance, low thermal expansion coefficient, good electrical conductivity, thermal conductivity, fatigue resistance, and high dimensional stability in humid or radiation environments, etc., have been used in aerospace As a high-strength and high-temperature resistant mater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C47/00
Inventor 陈刚赵玉涛邵阳
Owner JIANGSU UNIV
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