Aluminum-vanadium-tin-chromium intermediate alloy and preparation method thereof

A master alloy, aluminum vanadium tin chromium technology, applied in the field of metal materials, can solve the problems of finished product segregation of titanium alloy products, high impurity content of master alloy, difficult to meet aerospace and other problems, achieve optimal performance, small component segregation, and help For the effect of homogenization of ingredients

Inactive Publication Date: 2022-01-28
CHENGDE TIANDA VANADIUM IND
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  • Abstract
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  • Claims
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Problems solved by technology

TB5 titanium alloy is usually vacuum smelted by adding metal elements, which is easy to cause segregation of finished titanium alloy products and high impurity content, which is difficult to meet the needs of the development of aerospace industry
[0004] Chinese patent CN1629334A mentions an aluminum-vanadium-tin-chromium master alloy and its preparation method. The aluminum-vanadium-tin-chromium master alloy is directly obtained from oxides through aluminothermic reduction reaction. The mass percentage of oxygen element is as high as 0.12% after detection, and there is no To the content of other impurity elements, there is a problem of high impurity content in the master alloy

Method used

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  • Aluminum-vanadium-tin-chromium intermediate alloy and preparation method thereof
  • Aluminum-vanadium-tin-chromium intermediate alloy and preparation method thereof
  • Aluminum-vanadium-tin-chromium intermediate alloy and preparation method thereof

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preparation example Construction

[0034] The present invention also provides the preparation method of the aluminum vanadium chromium intermediate alloy described above, including the following steps:

[0035] Mix aluminum source, vanadium source and tin source, and perform aluminum thermal reaction to obtain aluminum vanadium 1-level alloy;

[0036] The aluminum vanadium primary alloy was mixed with a chromium source to perform vacuum smelting to give the aluminum vanadium chromium intermediate alloy.

[0037] The present invention mixes aluminum source, vanadium source, and tin source, and aluminum heat reactions to obtain aluminum tin 1-level alloys. The present invention first mixes aluminum source, vanadium source, and tin source, aluminum thermal reaction, can neutralize the density and melting point of vanadium and tin moniral, allowing the four yuan alloy more uniform.

[0038] In the present invention, the aluminum source, vanadium source, and tin source are mixed, and the aluminum source, vanadium source...

Embodiment 1

[0056] First, aluminum hot smelting process

[0057] (1) Aluminum powder and pentoxide, dry dry, dry temperature of 110 ° C, dry drying time;

[0058] (2) According to the mass fraction of vanadium and vanadium and tin in the nitroxide, the mass fraction of vanadium and tin in the chemical reaction, the mass ratio of aluminum hot smelting process alloy is calculated: aluminum powder and five The mass ratio of diofoxide and tin oxide is 5.260: 8.570: 1.000;

[0059] (3) Precaution of 120 r / min in the mixture in the mixture in the mixture in the mixture in the mixture in the mixture in a mixture of 120 R / min;

[0060] (4) The mixed aluminum powder and pentoxide, and tin oxide are preheated to the furnace temperature of 43 ° C, the ignition smelting, after 24 h, to obtain an aluminum vanadium 1-level alloy.

[0061] Second, the vacuum smelting process matching

[0062] After obtaining the aluminum tin level alloy, it is refined to break and analyze the composition according to th...

Embodiment 2

[0079] First, aluminum hot smelting process

[0080] (1) Aluminum powder and pentoxide, dry dry, dry temperature of 110 ° C, dry drying time;

[0081] (2) According to the mass fraction of vanadium and vanadium and tin in the nitroxide, the mass fraction of vanadium and tin in the chemical reaction, the mass ratio of aluminum hot smelting process alloy is calculated: aluminum powder and five Dioxide, the mass ratio of tin oxide is 5.304: 7.926: 1.000;

[0082] (3) Precaution of 120 r / min in the mixture in the mixture in the mixture in the mixture in the mixture in the mixture in a mixture of 120 R / min;

[0083] (4) The mixed aluminum powder and pentoxide, and tin oxide are preheated to the furnace temperature of 43 ° C, the ignition smelting, after 24 h, to obtain an aluminum vanadium 1-level alloy.

[0084] Second, the vacuum smelting process matching

[0085] After obtaining the aluminum tin level alloy, it is finely broken, and the melting process ratio is calculated accord...

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Abstract

The invention provides an aluminum-vanadium-tin-chromium intermediate alloy and a preparation method thereof, and relates to the technical field of metal materials. The invention provides an aluminum-vanadium-tin-chromium intermediate alloy. The alloy comprises the following components in percentage by mass: 61.0 to 65.0 percent of V, 10.0 to 14.0 percent of Sn, 10.0 to 14.0 percent of Cr, less than or equal to 0.15 percent of Fe, less than or equal to 0.15 percent of Si, less than or equal to 0.06 percent of C, less than or equal to 0.08 percent of O, less than or equal to 0.08 percent of N and the balance being Al. According to the invention, by controlling element composition and content, content of impurities in the aluminum-vanadium-tin-chromium intermediate alloy is low, components are uniform, segregation is small, homogenization of components of a titanium alloy is facilitated when the titanium alloy is smelted, and metallurgical defects of component segregation and inclusion are prevented.

Description

Technical field [0001] The present invention relates to the field of metal materials, and more particularly to an aluminum vanadium chromium intermediate alloy and a preparation method thereof. Background technique [0002] Titanium and its alloys have excellent properties, such as high strength, corrosion resistance, high temperature and good process performance, so it is increasingly stronger in modern industrial science and technology, in aerospace, aviation, oil Many fields such as chemical, light industry, metallurgy, machinery and energy have been widely used. [0003] In recent years, with the rapid development of materials, the need for aerospace industry needs increasingly urgent for new structural materials. Therefore, titanium alloy has become a research focus of new materials in recent years. The TB5 alloy is a new type of metastasis β titanium alloy, which has a high specific strength, corrosion resistance and heat moldability, which can be formed in a medium and com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C27/02C22C1/03C22B9/04
CPCC22C27/025C22C1/03C22B9/04
Inventor 王志军刘强何建成孙鑫刘志彬段善博纪海龙王东华张吉
Owner CHENGDE TIANDA VANADIUM IND
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