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Ultrasonic smelting reduction device and method for smelting vanadium-aluminum alloy

A vanadium-aluminum alloy and ultrasonic technology, which is applied in the field of ultrasonic smelting reduction device and vanadium-aluminum alloy smelting, can solve the problems of segregation defects and high impurity content, difficult to completely separate slag and alloy, poor product quality stability, etc., and reduce the operation process. , Good application prospect, convenient effect of dismantling and scraping alloy

Pending Publication Date: 2018-06-19
HEBEI IRON AND STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The above method is widely used in vanadium-aluminum alloy smelting due to its low cost and good process controllability. However, during the reaction process, the temperature in the reaction furnace reaches above 1800°C, and the vanadium-aluminum alloy stays in the high-temperature liquid state for a relatively long time during the production process. Short, resulting in uneven temperature of the alloy liquid during the reaction, partial reaction is not complete, and the alloy and the Al produced in the reaction 2 o 3 The density difference of the slag is small, which makes it difficult to completely separate the slag and the alloy after the reaction is completed, resulting in many shortcomings such as limited vanadium recovery rate, uneven alloy composition, segregation defects and high impurity content, and poor quality stability of the obtained product. The rate is low, it is difficult to meet the requirements of preparing high-performance vanadium-aluminum alloy materials

Method used

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  • Ultrasonic smelting reduction device and method for smelting vanadium-aluminum alloy
  • Ultrasonic smelting reduction device and method for smelting vanadium-aluminum alloy

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Embodiment 1

[0052] The present embodiment provides an ultrasonic smelting reduction device, the device includes: a reactor 1, an ultrasonic generator 2 and a heating device 3, the ultrasonic generator 2 is arranged at the bottom of the reactor 1, and the heating device 3 is an electromagnetic induction heating device, which is arranged around the outer wall of the reactor 1, and the heating device 3 is provided with an insulating layer 4, and the top of the reactor 1 is provided with an exhaust device 5, and the exhaust device 5 is provided with Vent.

[0053] Use the above-mentioned ultrasonic smelting reduction device to smelt, such as figure 2 As shown, the method includes the following steps:

[0054] (1) Carry out raw material proportioning according to the component of 55 vanadium aluminum, V 2 o 5 , V 2 o 3 , aluminum particles and calcium fluoride for mixing, the V 2 o 5 and V 2 o 3 The mass ratio of the calcium fluoride is 2:1, and the addition of the calcium fluoride i...

Embodiment 2

[0059] Utilize the ultrasonic smelting reducing device that embodiment 1 provides to carry out smelting, described method comprises the following steps:

[0060] (1) Carry out raw material proportioning according to the component of 65 vanadium aluminum, V 2 o 5 , V 2 o 3 , aluminum particles and calcium fluoride for mixing, the V 2 o 5 and V 2 o 3 The mass ratio of the calcium fluoride is 1:1, and the addition of the calcium fluoride is 5% of the total mass of the mixture;

[0061] (2) Add the mixture obtained in step (1) into the reactor 1 preheated to 150°C, energize and use the electromagnetic induction heating device 3 to ignite to above 260°C for spontaneous reaction, and turn on the ultrasonic generator 2 during the reaction for ultrasonic Treatment, the control power is 800W, after the reaction is completed, the control power is 500W and the ultrasonic treatment is continued for 90 minutes to fully separate the alloy and slag;

[0062] (3) After natural cooling...

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Abstract

The invention relates to an ultrasonic smelting reduction device and a method for smelting a vanadium-aluminum alloy. The device comprises a reactor (1), an ultrasonic generator (2) and a heating device (3), wherein the ultrasonic generator (2) is arranged at the bottom of the reactor (1); the heating device (3) is arranged on the outer side wall of the reactor (1) in a surrounding mode. The method comprises the following steps: mixing a vanadium source, an aluminum source and a slag forming agent, adding the mixture into a preheated reactor, electrifying and igniting to perform a reaction, and performing ultrasonic treatment in the reaction process and after the reaction; after naturally cooling, separating the slat and alloy ingot to obtain the vanadium-aluminum alloy product. The ultrasonic generator is arranged on the smelting reaction device, so that a uniform temperature field is formed in the reduction process, the reaction can be conducted uniformly, the alloy and the slag canbe separated completely, the influence of impurities on the alloy is reduced to the most extent, homogenization of alloy elements and refining of crystal particles are promoted, and the alloy productwith excellent performance is obtained.

Description

technical field [0001] The invention relates to the technical field of metallurgical engineering, in particular to the technical field of chemical metallurgy production of vanadium-aluminum alloys, in particular to an ultrasonic smelting reduction device and a method for smelting vanadium-aluminum alloys. Background technique [0002] Vanadium-aluminum alloy is an advanced alloy material widely used in the aerospace field, with high hardness and elasticity. As an intermediate alloy, vanadium-aluminum alloy is an important raw material for the production of high-strength titanium alloy, which can improve the heat resistance and cold working performance of the alloy, so it is widely used in military, aerospace and civilian industries. With the advancement of science and technology, the consumption of vanadium-aluminum master alloys is increasing year by year, so it is necessary to produce a large number of high-quality vanadium-aluminum master alloys to meet the requirements f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C27/02C22B5/04C22B34/22
CPCC22B5/04C22B34/22C22C1/02C22C27/02C22C27/025C22B9/026Y02P10/20
Inventor 王娜吴春亮陈华张娜白瑞国李九江董智慧
Owner HEBEI IRON AND STEEL