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Low-cost vanadium-aluminum alloy preparation technology

A vanadium-aluminum alloy, low-cost technology, applied in the field of alloy smelting, can solve the problems of affecting the mechanical properties of alloy products, increasing the alloy preparation cycle, and easily increasing impurity elements, etc., to improve product quality and production efficiency, reduce production costs, and ensure The effect of cleanliness

Inactive Publication Date: 2015-07-01
宝鸡市嘉诚稀有金属材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Using Al powder as the production raw material requires special preparation, which is easy to increase impurity elements, and there are major safety hazards in the production process
[0005] 2. The use of graphite materials in the production process to prepare the reaction crucible will easily lead to the increase of C element in the alloy, and C element is a harmful element in the alloy, which will directly affect the mechanical properties of the alloy product
[0006] 3. The production of alloy is carried out by two-step method, which increases the alloy preparation cycle, low efficiency and high smelting cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: A1 ingot 93kg, fluorite powder 33kg, after smelting at 800°C, 100kg of vanadium pentoxide was processed into 100 pieces, added into the melted A1 at 20kg / min, reacted for 5 minutes in total, and refined for 10 minutes after the reaction was completed. Minutes, pouring, get finished product 91kg.

[0021] Each component of gained alloy is:

[0022] V Fe Si C N O

[0023] 58.2 0.15 0.10 0.005 0.003 0.02

Embodiment 2

[0024] Embodiment 2: A1 ingot 183kg, fluorite powder 66kg, after smelting at 800 ℃, vanadium pentoxide 200kg is processed into 200 pieces, is added in the A1 after melting at 20kg / min, reacts for 10 minutes in total, refines 10 minutes after the reaction is completed. Minutes, pouring, get finished product 182kg.

[0025] Each component of gained alloy is:

[0026] V Fe Si C N O

[0027] 58.5 0.10 0.12 0.004 0.005 0.03.

Embodiment 3

[0028] Embodiment 3: A1 ingot 465kg, fluorite powder 165kg, after smelting at 800 ℃, vanadium pentoxide 500kg is processed into 500 pieces, is added in the A1 after melting by 30kg / min, reacts for 15 minutes in total, refines 10 minutes after the completion of the reaction Minutes, pouring, get finished product 455kg.

[0029] Each component of gained alloy is:

[0030] V Fe Si C N O

[0031] 58.4 0.11 0.10 0.004 0.004 0.03.

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PUM

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Abstract

The invention relates to a low-cost vanadium-aluminum alloy preparation technology which belongs to non-ferrous metal smelting technologies. The technology comprises the following steps: after induction melting of aluminum ingots, gradually adding vanadium pentoxide until the reaction is over, wherein vanadium pentoxide is processed into blocks; and refining, and then moulding by casting. According to the technology, primary aluminothermic reduction smelting and secondary refining are performed synchronously, so that the alloy quality is guaranteed, and meanwhile, the cost is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of alloy smelting, in particular to the smelting of aluminum vanadium alloys. technical background [0002] Vanadium-aluminum alloy (V55Al) is the most widely used and the largest amount of master alloy in the preparation of titanium alloy materials, and its quality directly affects the comprehensive performance of titanium alloy materials. In recent years, the application of titanium alloy materials in aerospace, petrochemical, shipbuilding and other fields has gradually expanded. The level of a country's titanium alloy material preparation has become an important manifestation of a country's comprehensive national strength. [0003] The traditional process of vanadium aluminum alloy is based on the principle of aluminothermic reduction, Al+V 2 o 5 After the primary reduction reaction with the slagging agent, the secondary smelting (induction refining and impurity removal) is carried out. This process ...

Claims

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Application Information

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IPC IPC(8): C22C1/02C22C27/02
Inventor 张金波郑杰
Owner 宝鸡市嘉诚稀有金属材料有限公司
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