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A method of producing titanium alloy

A titanium alloy and alloy technology, applied in the field of titanium alloy production, can solve the problems of incomplete deoxidation in the center of the block, difficulty in realizing continuous production, low current efficiency, etc., and achieve the effects of avoiding pollution, low cost, and improving efficiency

Active Publication Date: 2015-10-28
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

However, this method has problems such as low current efficiency, incomplete deoxidation at the center of the block, and difficulty in realizing continuous production, which restrict its development.

Method used

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  • A method of producing titanium alloy
  • A method of producing titanium alloy

Examples

Experimental program
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Effect test

Embodiment 1

[0042] This example is used to illustrate the method for producing titanium alloy provided by the present invention.

[0043] will contain 80% by weight LiCl and 20% by weight MgCl 2 The electrolyte is added as figure 1 In the electrolyte molten pool 4 of the device shown, the temperature is raised to 680°C to melt the electrolyte, the electrolysis power supply is turned on, the current intensity is 3kA, and the current density of the cathode 1 is: 0.5A·cm -2 , the current density of the anode 3 is: 0.6A·cm -2 , electrolyze to the bottom of the electrolyte molten pool 1 to produce a magnesium liquid layer, and feed 356.3g TiCl through the alloy raw material mixture feeding part 6 4 , 29.6gAlCl 3 and 15.1g VCl 4 The gaseous mixture (temperature 200°C) is passed into the magnesium liquid layer, and the feeding rate is controlled at 8g / min. Metal magnesium production rate is 12g / min under current electrolysis condition, reduction reaction consumption metal magnesium is 10g / m...

Embodiment 2

[0045] This example is used to illustrate the method for producing titanium alloy provided by the present invention.

[0046] will contain 80% by weight LiCl and 20% by weight MgCl 2 The electrolyte is added as figure 1 In the electrolyte molten pool 4 of the device shown, the temperature is raised to 750°C to melt the electrolyte, and the electrolysis power supply is turned on. The current intensity is 3kA, and the current density of the cathode 1 is: 0.5A. cm -2 , Anode 3 current density: 0.5A. cm -2 , electrolyze to the bottom of the electrolyte molten pool 4 to produce a magnesium liquid layer, and feed 336.5gTiCl through the alloy raw material mixture feeding part 6 4 and 42.7gMoCl 5 The gaseous mixture (temperature 300°C) is passed into the magnesium liquid layer, the feeding rate is controlled at 8g / min, the production rate of metal magnesium is 12g / min under the current electrolysis conditions, and the reduction reaction consumption of metal magnesium is 9.5g / min ...

Embodiment 3

[0048] This example is used to illustrate the method for producing titanium alloy provided by the present invention.

[0049] will contain 85% by weight LiCl and 15% by weight MgCl 2 The electrolyte is added as figure 1 In the electrolyte molten pool 1 of the device shown, the temperature is raised to 680°C to melt the electrolyte, and the electrolysis power supply is turned on. The current intensity is 2kA, and the cathode current density is 0.4A. cm -2 , The anode current density is: 0.3A. cm -2 , electrolyze to the bottom of the electrolyte molten pool 4 to produce a magnesium liquid layer, and feed 362.2g TiCl through the alloy raw material mixture feeding part 6 4 , 19.8gAlCl 3 , 15.1gVCl 4 and 3.8gZrCl 4 The gaseous mixture (temperature 200°C) is passed into the magnesium liquid layer, the feeding rate is controlled at 5g / min, the production rate of metal magnesium is 8.5g / min under the current electrolysis conditions, and the reduction reaction consumption of met...

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Abstract

The invention discloses a titanium alloy production method. The titanium alloy production method comprises following steps: MgCl2 of molten salt containing MgCl2 and LiCl is electrolyzed, and a magnesium metal liquid layer is formed via sedimentation of electrolytic magnesium metal into the molten salt; chlorides of a plurality of metallic elements which are used for forming the target titanium alloy are mixed uniformly according to molar ratio of the metallic elements in the titanium alloy so as to obtain an alloy raw material mixture; the alloy raw material mixture is contacted with the magnesium metal liquid layer so as to realize reduction of the metal chlorides in the alloy raw material mixture by magnesium metal, and obtain the titanium alloy. Electrolysis conditions and adding amount of the alloy raw material mixture are controlled so that magnesium metal consumption rate in reduction reaction is less than or equal to magnesium metal generation rate via electrolysis. The titanium alloy production method is wide in raw material sources, low in cost, and short in process flow; continuous production can be realized; particles of the titanium alloy obtained via the titanium alloy production method are uniform; metal element content is stable; and distribution is uniform.

Description

technical field [0001] The invention relates to a method for producing titanium alloy. Background technique [0002] Titanium and titanium alloys have a series of excellent properties and are widely used in many fields such as aerospace, chemical industry, electric power, shipbuilding, seawater desalination and daily life. At present, the production method of titanium alloy is mainly made by directly adding alloying elements to sponge titanium, and it is made after two times of vacuum remelting. This method mainly uses high-cost sponge titanium and hydrogenated titanium powder as raw materials, and the vacuum melting conditions are harsh. And unfavorable factors such as high energy consumption make the price of titanium alloy remain high, which limits its large-scale use. [0003] WO99 / 64638 discloses a method for producing titanium alloys. In this method, different metal element oxides are mixed and pressed into cathodes, graphite is used as an anode, and molten salt CaCl ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C14/00C22C1/00C22B5/04C25C3/04
Inventor 朱福兴彭卫星杨仰军穆天柱周玉昌邓斌闫蓓蕾赵三超穆宏波
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP