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Method for preparing vanadium-aluminum alloy material

A vanadium-aluminum alloy material technology, applied in the field of alloy preparation, can solve the problems of high energy consumption, high vanadium-aluminum alloy impurity content, low smelting recovery rate, etc., and achieve the effect of reducing content and production energy consumption

Inactive Publication Date: 2010-09-01
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low smelting recovery rate of the method widely used in my country at present, the content of vanadium aluminum alloy impurities is relatively high, and the energy consumption is relatively large.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] By mass percentage, weigh the powdered Al 20%, V 2 O 5 50%, mixed in a ball mill for 8 hours, placed in a copper mold and compacted under a pressure of 60MPa with a press, put the mold containing the pressed reaction material in an aluminothermic reaction vessel, and placed on the material to ignite The residual air was blown out with an inert gas, and heated to about 300°C under the protection of 2MPa argon to obtain a vanadium-aluminum alloy with a mass percentage of vanadium of 75% and Al of 5.0%. In the prepared alloy, the mass fraction of vanadium is 83.855%, and the mass fraction of aluminum is 15.187%. The contents of other impurities are: Na: 0.063%, Si: 0.144%, S: 0.177%, Fe: 0.534%, Mo: 0.04%.

Embodiment 2

[0009] By mass percentage, weigh the powdered Al 26.5%, V 2 O 5 58.45%, after mixing in a ball mill for 12 hours, place it in a copper mold and compact it under a pressure of 70MPa with a press, place the mold containing the pressed reaction material in an aluminothermic reaction vessel, and place it on the material to ignite The residual air was blown out with an inert gas, and heated to about 300°C under the protection of 4MPa argon to obtain a vanadium-aluminum alloy with a mass percentage of vanadium of 85% and Al of 15.0%. In the prepared alloy, the mass fraction of vanadium is 86.117%, and the mass fraction of aluminum is 12.929%. The contents of other impurities are: Na: 0.059%, Si: 0.132%, S: 0.169%, Fe: 0.543%, Mo: 0.051%.

Embodiment 3

[0011] According to mass percentage, weigh the powdered Al 33.1%, V 2 O 5 66.9%, mixed in a ball mill for 16 hours, placed in a copper mold and compacted under a pressure of 80MPa with a press, put the mold containing the pressed reaction material in an aluminothermic reaction vessel, and placed on the material to ignite The residual air is blown out with an inert gas, and heated to about 300°C under the protection of 7MPa argon to obtain a vanadium-aluminum alloy with a mass percentage of vanadium of 95% and Al of 25.0%. In the prepared alloy, the mass fraction of vanadium is 89.996%, and the mass fraction of aluminum is 9.148%. The contents of other impurities are: Na: 0.053%, Si: 0.118%, S: 0.147%, Fe: 0.491

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Abstract

The invention discloses a method for preparing vanadium-aluminum alloy material, which comprises the following steps of: weighing 20 to 33.1 mass percent of powdery Al and 50 to 66.9 mass percent of V2O5, mixing the Al and the V2O5 for 8 to 16 hours in a ball mill, then putting the mixture into a copper die, pressing the mixture by using a press under the pressure of 60 to 80MPa, putting the die filled with the pressed reaction material into a thermit reaction container, putting an ignition agent on the material, blowing out the residual air by using inert gas, and heating the material to about 300 DEG C under the argon protection of 2 to 7MPa to perform reaction so as to obtain vanadium-aluminum alloy which contains 75 to 95 mass percent of vanadium and 5.0 to 25.0 mass percent of Al in percentage.

Description

technical field [0001] The present invention relates to a preparation method of alloy. Background technique [0002] Vanadium-aluminum alloy is an advanced alloy material widely used in the aerospace field. It has high hardness, elasticity, seawater resistance and lightness. It can be used to manufacture seaplanes and water gliders. At the same time, vanadium-aluminum alloys are also used to produce titanium alloys (TiAl 6 V 4 ) and elemental additives for special alloys containing iron and vanadium, while in (Ti 6 Al 4 V 4 ) alloy is a strong β-phase stabilizer. Adding vanadium and aluminum to titanium alloy can improve the heat resistance and cold workability of the alloy, and make the alloy have good welding performance and quite high mechanical strength. Currently commonly used vanadium-aluminum alloys include AIV 55 and AIV 85 . Wherein, the vanadium aluminum alloy AIV described in the present invention 85 It is mainly used to configure titanium alloys contain...

Claims

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Application Information

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IPC IPC(8): C22C1/05C22C27/02C22B5/04
CPCY02P10/20
Inventor 喇培清王鸿鼎魏玉鹏卢学峰
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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