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Vanadium aluminum titanium intermediate alloy used for manufacturing high vanadium titanium alloy material and preparation method thereof

A high-vanadium-titanium alloy and intermediate alloy technology, which is applied in the field of preparation of high-vanadium-titanium alloy materials, can solve problems such as difficult to meet high-vanadium-titanium alloy products, high-vanadium-titanium alloy oxygen content exceeds the standard, and alloy impurities are high.

Inactive Publication Date: 2012-03-28
宝鸡市嘉诚稀有金属材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, Al-V85 alloy is used in domestic production, but because of the high impurity content of the alloy, especially the oxygen content as high as 0.20%, the oxygen content of the high vanadium titanium alloy produced exceeds the standard, which is difficult to meet the needs of high vanadium titanium alloy products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] First set V 2 o 5 100kg, TiO 2 16.35kg, aluminum powder 73.2kg, using metal thermal reduction method, using aluminum as a reducing agent to reduce vanadium pentoxide and titanium dioxide to prepare a one-step vanadium-aluminum-titanium alloy; then crush it into 30mm-50mm particles and put it into a vacuum induction furnace Refining, crushing into 1mm-6mm after refining to obtain finished vanadium-aluminum-titanium alloy. The composition of the vanadium-aluminum-titanium alloy is 65% to 71% of V, 10% to 14% of Al, O≤0.10%, and the balance of Ti. The content of alloy impurities is low, and the uniformity of the alloy is good.

Embodiment 2

[0018] Example 2 Preparation of Ti-4Al-22V alloy with this product

[0019] Take 67.6kg of titanium sponge, 32.3kg of vanadium aluminum titanium, and 0.13kg of aluminum beans to prepare Ti-4Al-22V alloy. The alloy standard requirements: Al3.5%~4.5%, V21%~23%, O≤0.13%, the actual composition Al: 4.1%, V: 21.8%, O: 0.09%.

[0020] Counter-evidence Case 3 Preparation of Ti-4Al-22V alloy by using traditional product Al-85V alloy

[0021] Take 74kg of titanium sponge, 25.9kg of Al-85V, and 0.12kg of aluminum beans to prepare Ti-4Al-22V alloy. The alloy standard requirements: Al3.5%~4.5%, V21%~23%, O≤0.13%, the actual composition is Al: 3.9%, V: 21.5%, O: 0.16%.

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Abstract

The invention provides a preparation method of vanadium aluminum titanium alloy, and relates to a preparation method of high vanadium titanium material. The preparation method of the vanadium aluminum titanium alloy is characterized in that the preparation process is that firstly, a metallothermic reduction method is adopted and aluminum is taken as a reducing agent to reduce vanadium pentoxide and titanium dioxide, so as to prepare one-step vanadium aluminum titanium alloy; and then the well-prepared one-step vanadium aluminum titanium alloy is crushed and secondarily refined in a vacuum medium frequency induction furnace, and the final product of the vanadium aluminum titanium alloy is obtained. According to the method provided by the invention, the metallothermic reduction method (one-step method) is adopted and the aluminum is taken as the reducing agent to prepare the vanadium aluminum titanium alloy, then the vanadium aluminum titanium alloy is melted in the vacuum induction melting furnace and crushed, and finally a product of the aluminum titanium alloy is obtained. By adopting the method, the problem of high oxygen content of traditional Al-V85 alloy is solved, and the vanadium aluminum titanium alloy with relatively low oxygen content is obtained through adding a titanium element while the proportion of aluminum to vanadium in the Al-V85 alloy is not changed, and the oxygen content of a titanium alloy ingot is successfully controlled.

Description

technical field [0001] The invention discloses a method for preparing a vanadium-aluminum-titanium alloy, and relates to a method for preparing a high-vanadium-titanium alloy material. Background technique [0002] High-vanadium titanium alloys such as Ti-4Al-22V and Ti-15V-3Al-3Cr-3Sn alloys are widely used in aerospace, sports, and eye industries because of their excellent mechanical properties such as high strength and high toughness. At present, Al-V85 alloy is used in domestic production, but due to the high impurity content of the alloy, especially the oxygen content as high as 0.20%, the oxygen content of the high vanadium titanium alloy produced exceeds the standard, which is difficult to meet the needs of high vanadium titanium alloy products. Contents of the invention [0003] The object of the present invention is to address the shortcomings of the above prior art, provide a method for preparing a vanadium-aluminum-titanium alloy that replaces the traditionally ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C27/02C22C1/03
Inventor 郑杰张金波
Owner 宝鸡市嘉诚稀有金属材料有限公司
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