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Method for increasing finished product rate of AlV55 vanadium-aluminum alloy

A vanadium-aluminum alloy and yield technology is applied in the field of improving the yield of AlV55 vanadium-aluminum alloy, which can solve the problem of low yield of AlV55 alloy, and achieve the effects of reducing the apparent quality of the alloy, no slag sticking, and low cost.

Active Publication Date: 2019-06-11
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In my country, AlV55 vanadium aluminum alloy is mainly used to prepare Ti-6Al-4V titanium alloy, and the market demand is very large. However, the yield of AlV55 alloy prepared by one-step method is generally not high.

Method used

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  • Method for increasing finished product rate of AlV55 vanadium-aluminum alloy
  • Method for increasing finished product rate of AlV55 vanadium-aluminum alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Weigh high-purity V 2 o 5 (particle size: 120 mesh ~ 160 mesh) 150kg, high-purity metal Al (particle size: 80 mesh ~ 120 mesh) 132.3kg and AlV55 broken alloy (particle size: 5 ~ 10mm, V content 59.1%) 21kg into the material tank and mix evenly Then pour it into the reactor lined with integral casting, ignite the magnesium strip to trigger the reaction, open the reactor after 24 hours, put it into the vacuum induction furnace for remelting and casting after treatment, the vacuum degree is controlled at 10Pa, the maximum temperature is 1510°C, and the melting time After 30 minutes and 24 hours, the vacuum induction furnace was turned on, and an AlV55 alloy with a V content of 59.3% and a yield of 70% was obtained after sand blasting and crushing.

Embodiment 2

[0051] Weigh high-purity V 2 o 5 (particle size: ≤160 mesh) 100kg, high-purity metal Al (particle size: ≤120 mesh) 87.7kg and AlV55 broken alloy (particle size: ≤5mm, V content 59.2%) 13.6kg are put into the material tank and mixed evenly, then poured into the The reactor lined with integral casting, ignites the magnesium tape to trigger the reaction, opens the reactor after 24 hours, and puts it into a vacuum induction furnace for remelting and casting after treatment. The vacuum induction furnace was turned on, and an AlV55 alloy with a V content of 59.1% and a yield of 70.6% was obtained after sand blasting and crushing.

Embodiment 3

[0053] Weigh high-purity V 2 o 5 (particle size: 120 mesh ~ 160 mesh) 200kg, high-purity metal Al (particle size: ≤80 mesh) 176kg and AlV55 broken alloy (particle size: 3 ~ 8mm, V content 59.5%) 27.8kg into the material tank and mix evenly before pouring Into the reactor lined with integral casting, ignite the magnesium strip to trigger the reaction, open the reactor after 24 hours, put it into the vacuum induction furnace for remelting and casting after treatment, the vacuum degree is controlled at 30Pa, the maximum temperature is 1530°C, and the melting time is 50min. After 24 hours, the vacuum induction furnace was turned on, and an AlV55 alloy with a V content of 59.4% and a yield of 71.5% was obtained after sand blasting and crushing.

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Abstract

The invention relates to a method for increasing the finished product rate of an AlV55 vanadium-aluminum alloy, and belongs to the technical field of the metallurgy field. The technical problem solvedby the method is that the finished product rate of AlV55 alloys prepared through an existing one-step method is low. The method for increasing the finished product rate of the AlV55 vanadium-aluminumalloy includes the steps that a, V2O5, metal Al and broken AlV55 alloys are placed in a material tank to be evenly mixed after being weighed; b, a reactor is placed in a closed space, the material mixed in the step a is poured into the reactor, a magnesium ribbon is ignited to trigger reaction, and aluminothermic reduction smelting is conducted; c, the reaction material in the step b is placed ina vacuum induction furnace to be subjected to remelting and casting; and d, the vacuum induction furnace is opened, and an AlV55 vanadium-aluminum alloy finished product is obtained through abrasiveblasting and smashing processing. By means of the method, the finished product rate of the AlV55 vanadium-aluminum alloy can be increased to 70% or above, and the alloy is smooth in surface, free of contraction cavities and free of bonded slag.

Description

technical field [0001] The invention belongs to the field of metallurgy, and in particular relates to a method for improving the yield of AlV55 vanadium aluminum alloy. Background technique [0002] As an important additive of titanium alloy, vanadium aluminum alloy is often used to improve the performance of titanium alloy, so that it has more advantages in strength, toughness, formability, corrosion resistance, high temperature resistance, etc. , automotive chassis components, golf clubs and important materials for medical equipment. [0003] With the rapid development of my country's economy and the continuous improvement of people's consumption level, my country's national defense and aerospace capabilities have been significantly enhanced, and titanium alloys used in civil industry and aerospace fields have shown a substantial growth momentum. In my country, AlV55 vanadium aluminum alloy is mainly used to prepare Ti-6Al-4V titanium alloy, and the market demand is very ...

Claims

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Application Information

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IPC IPC(8): C22C1/02C22C27/02C22B5/04B22D23/06
Inventor 陈海军尹丹凤王永钢师启华
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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