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Production method of high-quality AlV55 alloy

A production method and high-quality technology, applied in the field of metallurgy, can solve the problems of high oxide film fine powder, low impurity content and high yield of AlV55 alloy

Active Publication Date: 2022-02-08
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of production method of high-quality AlV55 alloy in order to overcome the problems of product quality such as oxide film, nitride film and fine powder in the AlV55 alloy produced by one-step method existing in the prior art. High-quality AlV55 alloy with better apparent quality and lower impurity content can be produced by one-step method, and the yield of AlV55 alloy is high

Method used

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  • Production method of high-quality AlV55 alloy

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] High purity V 2 o 5 (purity 99.5%, wherein Fe is 0.007%, Si is 0.008%, C is 0.008%, particle size 1 ~ 2mm) 100kg, high-purity metal Al (purity 99.7%, wherein Fe is 0.004%, Si is 0.005%, C is 0.005%, particle size 1~2mm) 90kg and high-purity CaO (purity 98.6%, wherein Fe is 0.18%, Si is 0.15%, C is 0.25%, particle size 120~160 orders) 12kg is mixed in the feeding tank of packing. Load the uniformly mixed materials into the reaction furnace three times, and compress and exhaust each time after loading the materials. A 4:1 mixture of barium peroxide and aluminum powder was used as the igniter to initiate the thermite reaction. After the reaction is stable, push the furnace body into the vacuum chamber, vacuumize to 15Pa, fill with argon to 93kPa, cool for 36 hours, dismantle the furnace to obtain Fe content of 0.16%, Si content of 0.17%, C content of 0.012%, O content of 0.05%, N The high-quality AlV55 alloy with a content of 0.014% has an alloy yield of 81.8%.

Embodiment 2

[0060] High purity V 2 o 5 (purity 99.6%, wherein Fe is 0.006%, Si is 0.007%, C is 0.006%, particle size<1mm) 120kg, high-purity metal Al (purity 99.8%, wherein Fe is 0.003%, Si is 0.004%, C is 0.004 %, particle size 0.5~1mm) 106.8kg and high-purity CaO (purity 98.5%, wherein Fe is 0.19%, Si is 0.17%, C is 0.27%, particle size 160~200 orders) 18kg is mixed in the feeding tank of packing. The uniformly mixed materials are loaded into the reaction furnace in 4 times, and each time the materials are loaded, they are compressed and exhausted. A 4:1 mixture of barium peroxide and aluminum powder was used as the igniter to initiate the thermite reaction. After the reaction is stable, push the furnace body into the vacuum chamber, vacuumize to 30Pa, fill with argon to 94kPa, cool for 38 hours and dismantle the furnace to obtain Fe content of 0.17%, Si content of 0.15%, C content of 0.013%, O content of 0.055%, N The high-quality AlV55 alloy with a content of 0.013% has an alloy yi...

Embodiment 3

[0062] High purity V 2 o 5 (purity 99.7%, wherein Fe is 0.005%, Si is 0.006%, C is 0.007%, particle size 2 ~ 3mm) 150kg, high-purity metal Al (purity 99.7%, wherein Fe is 0.004%, Si is 0.005%, C is 0.004%, particle size 2~3mm) 132kg and high-purity CaO (purity 98.5%, wherein Fe is 0.019%, Si is 0.016%, C is 0.28%, particle size 120~160 orders) 24kg is mixed in the charging tank of packing. Load the uniformly mixed materials into the reaction furnace five times, and compress and exhaust each time after loading the materials. After the reaction is stable, push the furnace body into the vacuum chamber, vacuumize to 35Pa, fill with argon to 96kPa, cool for 40 hours and dismantle the furnace to obtain Fe content of 0.16%, Si content of 0.15%, C content of 0.014%, O content of 0.052%, N The high-quality AlV55 alloy with a content of 0.012% has an alloy yield of 82.5%.

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Abstract

The invention relates to the field of metallurgy, and discloses a production method of a high-quality AlV55 alloy. The method comprises the following steps: (1) adding V2O5 of which the purity is greater than or equal to 99.5 mass percent, metal Al of which the purity is greater than or equal to 99.7 mass percent and CaO of which the purity is greater than or equal to 98.5 mass percent into a charging bucket according to a mass ratio of 1: (0.88 to 0.90): (0.12 to 0.16), and mixing; (2) filling the mixed material into a reaction furnace in 3 to 5 times, and compressing and exhausting after filling the material each time; (3) initiating the material to carry out aluminothermic reaction by adopting an ignition agent; (4) after the reaction is stable, pushing the reaction furnace body into a vacuum chamber, vacuumizing, and introducing argon; and (5) disassembling the furnace after cooling, and obtaining the high-quality AlV55 alloy. The AlV55 alloy prepared by the method disclosed by the invention is high in yield, low in impurity element content and high in quality.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a production method of high-quality AlV55 alloy. Background technique [0002] Vanadium-aluminum alloy can significantly improve the strength, toughness, formability, corrosion resistance and high temperature resistance of titanium alloys. It is an important additive commonly used in titanium alloys and can be used to manufacture seaplanes, gliders, automotive engine systems, automotive chassis components, Golf clubs and medical equipment etc. With the rapid development of my country's economy and the continuous improvement of people's consumption level, titanium alloys used in civil industry and aerospace fields have shown a substantial growth momentum. [0003] Domestic research and development of vanadium-aluminum alloys started relatively late, and AlV55 alloys are mainly used to prepare Ti-6Al-4V alloys, and the market demand is very large. However, most AlV55 alloys pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B5/04C22B34/22C22C1/02C22C27/02F27B1/02F27B1/14F27D1/00F27D7/06
CPCC22B5/04C22B34/22C22C1/02C22C27/025F27B1/02F27B1/14F27D1/0043F27D7/06F27D2007/066Y02P10/20
Inventor 尹丹凤陈海军师启华高雷章
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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