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Aluminum-tungsten composite and production method thereof

A technology for composite materials and plates, which is applied in the field of metal composite materials and their preparation, can solve the problems that pure metal particle reinforced aluminum matrix composite materials have not yet been discovered, and achieve the effect of improved mechanical properties and good electrical conductivity

Inactive Publication Date: 2012-10-03
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, no reports on the production of pure metal particle reinforced Al matrix composites by cumulative roll welding method have been found.

Method used

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  • Aluminum-tungsten composite and production method thereof
  • Aluminum-tungsten composite and production method thereof
  • Aluminum-tungsten composite and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The surface of an annealed 1060 industrial pure aluminum plate (produced by Southwest Aluminum Co., Ltd.) with a size of 150mm×100mm×7mm was polished with a wire brush, and then cleaned with alcohol. Spread 14g of pure tungsten particles (produced by Shanghai Shuitian Material Technology Co., Ltd.) with a diameter of 10-15μm evenly between two aluminum plates, put the two aluminum plates into a muffle furnace at a temperature of 280°C and heat for 5 minutes Finally, it is rolled on a rolling mill with a diameter of 300 mm and a length of 220 mm. No lubricating oil was used during rolling, and the rolling speed and reduction were 0.6 m / s and 50%, respectively. Cool to room temperature in air after rolling. Cut off the composite plate after the first rolling from the middle, polish and clean the surface of the plate with a steel brush and alcohol respectively, and evenly lay pure tungsten particles with the same quality as the first pass between the two cut plates (14g)...

Embodiment 2

[0018] The surface of an annealed 1060 industrial pure aluminum plate (produced by Southwest Aluminum Co., Ltd.) with a size of 150mm×100mm×7mm was polished with a wire brush, and then cleaned with alcohol. Spread 29g of pure tungsten particles (produced by Shanghai Shuitian Material Technology Co., Ltd.) with a diameter of 10-15μm evenly between two aluminum plates. After stacking the two aluminum plates, put them into a muffle furnace at a temperature of 350°C and heat for 10 minutes. Finally, it is rolled on a rolling mill with a diameter of 300 mm and a length of 220 mm. No lubricating oil was used during rolling, and the rolling speed and reduction were 0.4 m / s and 50%, respectively. Cool to room temperature in air after rolling. Cut off the composite plate after the first rolling from the middle, polish and clean the surface of the plate with a steel brush and alcohol respectively, and evenly lay pure tungsten particles with the same quality as the first pass between th...

Embodiment 3

[0020] The surface of an annealed 1060 industrial pure aluminum plate (produced by Southwest Aluminum Co., Ltd.) with a size of 150mm×100mm×7mm was polished with a wire brush, and then cleaned with alcohol. Spread 44.3 g of pure tungsten particles (produced by Shanghai Shuitian Material Technology Co., Ltd.) with a diameter of 10-15 μm evenly between two aluminum plates. After stacking the two aluminum plates, put them into a muffle furnace at a temperature of 310 °C and heat for 20 Rolling is carried out after 10 minutes on a rolling mill with a diameter of 300 mm and a length of 220 mm. No lubricating oil was used during rolling, and the rolling speed and reduction were 0.8 m / s and 50%, respectively. Cool to room temperature in air after rolling. Cut off the composite plate after the first rolling from the middle, polish and clean the surface of the plate with a steel brush and alcohol respectively, and evenly lay pure tungsten particles with the same quality as the first p...

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Abstract

Disclosed is aluminum-tungsten composite. Tungsten accounts for 1.4%-4.2% of aluminum in volume ratio. A production method of the aluminum-tungsten composite mainly includes spreading particles of pure tungsten between two aluminum plates, heating to 280-350 DEG C, rolling the particles on a mill at the rolling speed of 0.4-0.8m / s with rolling reduction of 50% after heating continues for 5-20 minutes, air-cooling to room temperature after rolling, repeatedly heating for four times, and cyclically processing combined composite plates by shearing, grinding, cleaning, heating and rolling for 11 times by the method. The aluminum-tungsten composite has the advantages of high strength, high rigidity and high conductivity and has yield strength of 130-152MPa, tensile strength of 145-160MPa, Brinell hardness of 50-63HB, and electric conductivity of 2.70-2.83 Mu omega / cm.

Description

technical field [0001] The invention relates to a metal composite material and a preparation method thereof. Background technique [0002] Aluminum matrix composites have the advantages of low density, high tensile strength, high modulus of elasticity, and high wear resistance. Therefore, aluminum matrix composites have great application potential in aerospace. At present, most of the methods for producing aluminum matrix composites are squeeze casting, pressureless infiltration and spray forming. These methods have certain shortcomings, such as uneven dispersion of reinforcement particles in the matrix, and poor wettability between reinforcement particles and the aluminum matrix. , the prepared composite material has high porosity and low economic benefits, etc. As a new method, cumulative roll welding overcomes the above shortcomings. In recent years, people have used this method to produce a variety of aluminum matrix composite materials, such as B 4 C Reinforced Alumi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/00
Inventor 刘日平刘崇宇马明臻王强贾元智
Owner YANSHAN UNIV
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