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A preparation process for producing aluminum-vanadium alloy by molten salt method

A technology of aluminum vanadium alloy and preparation process, which is applied in the field of preparation of aluminum vanadium alloy produced by molten salt method, and can solve the problems of easy segregation, unstable quality, low efficiency and the like

Active Publication Date: 2018-03-06
山东滨州华创金属有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high price of metal vanadium and vanadium-aluminum alloy, it is difficult to dissolve and easy to segregate during the fusion process; with the continuous rise of energy prices, the fusion method has high cost, high energy consumption, long time, low efficiency and unstable quality. and other issues become more and more prominent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment one (preparation of vanadium content is the aluminum vanadium alloy of 5%):

[0014] Add 980 kg of 99.7% (mass fraction, the same below) aluminum ingot into the induction furnace, melt it and raise the temperature to 700°C, mix 150 kg of sodium fluoroaluminate, 50 kg of potassium fluoroaluminate and 175 kg of vanadium pentoxide After the mixture is made, add it to the feeding box of the automatic feeder, adjust the frequency of the induction furnace to 900 Hz, add the above mixture into the induction furnace, control the feeding time within 10 to 30 minutes, and then react for 60 minutes to become an alloy. Sampling the alloy for testing. After the vanadium content is qualified, pour out the fluorine salt on the alloy surface. After pouring, add 2.5 kg of slagging agent to clean the remaining fluorine salt on the alloy surface; Refining and degassing by passing argon through the machine, the rotating speed of the rotary degasser is 200rpm, and the refining an...

Embodiment 2

[0015] Embodiment two (preparation of vanadium content is the aluminum vanadium alloy of 5%):

[0016] Put 980 kg of 99.7% aluminum ingot into the induction furnace, melt it and raise the temperature to 800°C, mix 150 kg of sodium fluoroaluminate, 50 kg of potassium fluoroaluminate and 175 kg of vanadium pentoxide into a mixture, then add the automatic In the material box of the feeder, adjust the frequency of the induction furnace to 800 Hz, add the above-mentioned mixture into the induction furnace, control the feeding time within 10 to 30 minutes, and then react for 80 minutes to become an alloy. The alloy is sampled for testing. The vanadium content Pour out the fluorine salt on the surface of the alloy after passing the test, and add 3 kg of slagging agent to clean the remaining fluorine salt on the surface of the alloy after pouring; The rotating speed of the rotary degasser is 300 rpm, and the refining and degassing time is 30 minutes. After the refining and degassing i...

Embodiment 3

[0017] Embodiment three (the preparation vanadium content is the aluminum-vanadium alloy of 5%):

[0018] Put 980 kg of 99.7% aluminum ingot into the induction furnace, melt it and raise the temperature to 900°C, mix 150 kg of sodium fluoroaluminate, 50 kg of potassium fluoroaluminate and 175 kg of vanadium pentoxide into a mixture, then add the automatic In the material box of the feeder, adjust the frequency of the induction furnace to 700 Hz, add the above-mentioned mixture into the induction furnace, control the feeding time within 10 to 30 minutes, and then react for 80 minutes to become an alloy. The alloy is sampled for testing. The vanadium content Pour out the fluorine salt on the surface of the alloy after passing the test, and add 3.5 kg of slagging agent to clean the remaining fluorine salt on the surface of the alloy after pouring; The rotating speed of the rotary degasser is 400 rpm, and the refining and degassing time is 25 minutes. After the refining and degass...

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Abstract

The invention relates to the field of aluminum intermediate alloy synthesis, and particularly discloses a preparation process for producing an aluminum-vanadium alloy with a molten-salt growth method. The preparation process comprises the steps that an aluminum ingot is added into an electric induction furnace, molten and heated to 700-900 DEG C; sodium fluoroaluminate, potassium fluoroaluminate and vanadium pentoxide are blended into a mixture, and added into a workbin of an automatic feeding machine; the mixture is then added into the electric induction furnace, sampling and testing are conducted after a reaction is conducted for 60-100 minutes, villaumite on the surface of the alloy is poured out when the alloy is qualified, and residual villaumite on the surface of the alloy is cleared away by adding a slag former; and the alloy is heated, argon is introduced through a rotating degasifying machine for refining degasifying, and the slag former is added into the alloy for conducting slag forming again. According to the preparation process for producing the aluminum-vanadium alloy with the molten-salt growth method, the electric induction furnace is utilized, the sodium fluoroaluminate, the potassium fluoroaluminate and the vanadium pentoxide are blended and added into high-temperature molten aluminum, and the aluminum-vanadium alloy is directly produced, so that the problems that when the aluminum-vanadium alloy is prepared with a mix-melting method, the cost is high, the energy consumption is high, the time is long, the efficiency is low and the quality is instable are solved.

Description

(1) Technical field [0001] The invention relates to the field of synthesis of aluminum master alloys, in particular to a preparation process for producing aluminum-vanadium alloys by a molten salt method. (2) Background technology [0002] The traditional preparation process of aluminum-vanadium alloy is a pairing method, which mainly uses metal aluminum and metal vanadium or vanadium-aluminum alloy as raw materials for high-temperature fusion. However, due to the high price of metal vanadium and vanadium-aluminum alloy, it is difficult to dissolve and easy to segregate during the fusion process; with the continuous rise of energy prices, the fusion method has high cost, high energy consumption, long time, low efficiency and unstable quality. and other issues become more prominent. (3) Contents of the invention [0003] In order to make up for the defects of the prior art, the invention provides a preparation process for producing aluminum-vanadium alloys by a molten salt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22C1/06C22C21/00
CPCC22C1/026C22C1/06C22C21/00
Inventor 卞金涛高希柱魏作山冯增建张海军李佳
Owner 山东滨州华创金属有限公司