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A kind of aluminum molybdenum vanadium master alloy and preparation method thereof

A technology of master alloy and aluminum-molybdenum, applied in the field of aluminum-molybdenum-vanadium master alloy and its preparation, can solve the problems of poor alloy uniformity, influence of titanium alloy quality, increased brittleness of titanium alloy, etc. simple effect

Active Publication Date: 2020-12-22
CHENGDE TIANDA VANADIUM IND
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method has the advantages of simple equipment, convenient operation, and less investment. The disadvantage is that the uniformity of the alloy is poor, and impurities, especially gas phase impurities such as oxygen and nitrogen, cannot be controlled. Nitrogen will increase the brittleness of the titanium alloy and directly affect the titanium alloy. quality makes a difference

Method used

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  • A kind of aluminum molybdenum vanadium master alloy and preparation method thereof
  • A kind of aluminum molybdenum vanadium master alloy and preparation method thereof
  • A kind of aluminum molybdenum vanadium master alloy and preparation method thereof

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preparation example Construction

[0026] The present invention provides a preparation method for the aluminum-molybdenum-vanadium master alloy described in the above scheme, comprising the following steps:

[0027] (1) Aluminum and molybdenum trioxide are mixed for aluminothermic reaction, and aluminum-molybdenum primary alloy is obtained after cooling;

[0028] (2) Aluminum and vanadium pentoxide are mixed for aluminothermic reaction, and aluminum vanadium primary alloy is obtained after cooling;

[0029] (3) Vacuum melting the aluminum-molybdenum primary alloy, aluminum-vanadium primary alloy and aluminum, and obtain the aluminum-molybdenum-vanadium master alloy after cooling;

[0030] The steps (1) and (2) are not limited by time sequence.

[0031] The invention mixes aluminum and molybdenum trioxide for aluminothermic reaction, and obtains an aluminum-molybdenum primary alloy after cooling. In the present invention, the mass ratio of aluminum to molybdenum trioxide is preferably (0.0934~1.061):(1.815~2.0...

Embodiment 1

[0040] 1. Aluminum thermal smelting process

[0041] (1) Dry the aluminum powder, molybdenum trioxide and vanadium pentoxide at a temperature of 110°C for 12 hours.

[0042] (2) Calculate the alloy mass ratio in the aluminothermic smelting process: aluminum powder to molybdenum trioxide is 1:1.97; aluminum powder to vanadium pentoxide is 1:1.69.

[0043] (3) Put the aluminum powder and molybdenum trioxide, aluminum powder and vanadium pentoxide into the mixer and mix them for 4 minutes at a rate of 120r / min. Mixing requirements: all raw materials must be fully mixed evenly to ensure that the Full exposure.

[0044] (4) Preheat the mixed aluminum powder and molybdenum trioxide, aluminum powder and vanadium pentoxide to a furnace temperature of 43°C, ignite and smelt, and release the furnace after 24 hours to obtain aluminum-molybdenum 80 first-grade alloy, aluminum-vanadium 85 grade one alloy.

[0045] 2. Proportion of vacuum melting process

[0046] After obtaining the fir...

Embodiment 2

[0062] 1. Aluminum thermal smelting process

[0063] (1) Dry the aluminum powder, molybdenum trioxide and vanadium pentoxide at a temperature of 110°C for 12 hours.

[0064] (2) Calculate the alloy mass ratio in the aluminothermic smelting process: aluminum powder to molybdenum trioxide is 1:1.97; aluminum powder to vanadium pentoxide is 1:1.69.

[0065] (3) Put the aluminum powder and molybdenum trioxide, aluminum powder and vanadium pentoxide into the mixer and mix them for 4 minutes at a rate of 120r / min. Mixing requirements: all raw materials must be fully mixed evenly to ensure that the Full exposure.

[0066] (4) Preheat the mixed aluminum powder and molybdenum trioxide, aluminum powder and vanadium pentoxide to a furnace temperature of 43°C, ignite and smelt, and release the furnace after 24 hours to obtain aluminum-molybdenum 80 first-grade alloy, aluminum-vanadium 85 grade one alloy.

[0067] 2. Proportion of vacuum melting process

[0068] After the Al-Mo 80 prim...

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Abstract

The invention provides an aluminum-molybdenum-vanadium intermediate alloy and a preparation method thereof, and relates to the technical field of metal materials. The invention aluminum-molybdenum-vanadium intermediate alloy comprises the following components of, in percentage by mass,17.0%-22.0% of Al, 40.0%-42.0% of Mo and 38.0%-41.0% of V. According to the alloy and the preparation method, through the control of the components and the content, the aluminum-molybdenum-vanadium intermediate alloy has small component segregation, when a titanium alloy is smelted, the homogenization of the titanium alloy composition is facilitated, the component segregation is prevented, the batching procedures during the smelting of the titanium alloy are optimized, and accurate batching can be realized inthe production process. The invention provides a preparation method of the aluminum-molybdenum-vanadium intermediate alloy. The preparation method can improve the uniform stability of the aluminum-molybdenum-vanadium intermediate alloy component, the content of the impurities such as O and N is reduced, the process is simple, the control is easy, and the method is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of metal materials, in particular to an aluminum-molybdenum-vanadium master alloy and a preparation method thereof. Background technique [0002] Titanium and its alloys have excellent properties, such as high specific strength, corrosion resistance, high temperature resistance and good comprehensive process performance, etc., and are increasingly becoming eye-catching materials in the field of modern industrial science and technology. It has been widely used in many fields such as chemical industry, light industry, metallurgy, machinery and energy. [0003] Aluminum, molybdenum, and vanadium are the main alloy components of titanium alloys, which are usually added to titanium alloys in the form of master alloys. The main grades of titanium alloys used are TA11 and TC16. TA11 is used in the aerospace industry, and is generally used to make aircraft turbine blades; TC16 is a titanium alloy that can work abov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C30/00C22C1/03C22C14/00
CPCC22C1/03C22C14/00C22C27/025C22C27/04C22C30/00
Inventor 王志军刘强孙鑫刘志彬段善博
Owner CHENGDE TIANDA VANADIUM IND
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