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Device and process for preparing scandium-containing aluminum alloy material

A technology for aluminum alloy materials and preparation devices, which is applied in the direction of cells, electrolytic processes, electrolytic components, etc., can solve the problems of high cost, high energy consumption, and high cost of scandium alloying, so as to inhibit recrystallization, increase strength, and enhance neutralization resistance. The effect of sub-irradiation damage properties

Active Publication Date: 2015-01-28
SUZHOU SABO IND DESIGN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are two main factors hindering the large-scale application of scandium: 1. The cost of scandium alloying is too high; 2. The existing production process of scandium alloying is too complicated. Various reasons lead to the unfavorable factors such as high energy consumption and high cost of these two methods. In addition, in the current molten salt direct electrolysis system, because it is different from the molten salt in the existing pure aluminum electrolysis system, it is impossible to replace the molten salt. Electrolytic aluminum-scandium alloy in the room, but can not be mass-produced, resulting in high cost

Method used

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  • Device and process for preparing scandium-containing aluminum alloy material
  • Device and process for preparing scandium-containing aluminum alloy material
  • Device and process for preparing scandium-containing aluminum alloy material

Examples

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preparation example Construction

[0057] see figure 1 A preparation device for scandium-containing aluminum alloy materials, including a scandium-containing oxide decomposition control part 1, an electrolytic cell body 2 and a cooling part 3, an electrolyte input pipe 4, an alloy billet output pipe 5, an electric heating part 6, a graphite tank 7, and an anode Conductive pipe 8 , protective layer 9 , cathode conductive rod 10 , scandium-containing input pipe 11 , baffle plate 12 , cooling circulation system 13 , inert gas input pipe 14 and switch valve 15 .

[0058] One end of the electrolytic cell body 2 is provided with an electrolyte input pipe 4, and the other end is provided with an alloy billet output pipe 5. The electrolytic cell body 2 is sequentially provided with an electric heating part 6, a graphite tank 7, an anode conductive tube 8 and a cathode conductive rod 10; The conductive rod 10 is provided with a protective layer 9, the protective layer 9 is made of silicon nitride combined with silicon c...

Embodiment 1

[0064] The preparation process of scandium-containing aluminum alloy material comprises the following steps:

[0065] 1) Adding bauxite as raw material to the decomposition control part 1 of scandium-containing oxides, in the decomposition control part 1 of scandium-containing oxides, processing harmful impurities in minerals with high enrichment degree of scandium to obtain scandium-containing oxides, And detect the processed scandium-containing oxides to keep the mass ratio of scandium-containing oxides to harmful impurities at 30:1;

[0066] 2) Input the electrolyte raw material into the electrolytic cell body 2 through the electrolyte input pipe 4. The electrolyte raw material formula includes alumina, sodium fluoride and aluminum fluoride, and the electrolysis is carried out under the cryolite system. The mass fraction of the formula is: alumina 4.0% , sodium fluoride 40.0%, aluminum fluoride 28%, and the balance is unavoidable impurities; at the same time, the baffle pla...

Embodiment 2

[0073] The preparation process of scandium-containing aluminum alloy material comprises the following steps:

[0074] 1) Adding bauxite as raw material to the decomposition control part 1 of scandium-containing oxides, in the decomposition control part 1 of scandium-containing oxides, processing harmful impurities in minerals with high enrichment degree of scandium to obtain scandium-containing oxides, And the processed scandium-containing oxides are tested to keep the mass ratio of scandium-containing oxides to harmful impurities at 40:1;

[0075] 2) Input the electrolyte raw material into the electrolytic cell body 2 through the electrolyte input pipe 4. The electrolyte raw material formula includes alumina, sodium fluoride and aluminum fluoride, and the electrolysis is carried out under the cryolite system, and the mass fraction of the formula is: alumina 8.0% , sodium fluoride 50.0%, aluminum fluoride 32%, and the balance is unavoidable impurities; at the same time, the ba...

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Abstract

The invention discloses a device for preparing a scandium-containing aluminum alloy material. The device comprises a scandium-containing oxide decomposition control part, an electrolytic cell body and a cooling part, wherein an electrolyte input pipeline is arranged at one end of the electrolytic cell body, and an alloy blank output pipeline is arranged at the other end of the electrolytic cell body; an electric heating part, a graphite tank, an anode conductive tube and a cathode conductive rod are sequentially arranged in the electrolytic cell body; the scandium-containing oxide decomposition control part is connected with the electrolytic cell body through a scandium-containing input pipeline; and the cooling part is arranged at the tail end of the alloy blank output pipeline and is connected with a cooling circulation system. In addition, an electrochemical sensor and a current sensor arranged in the electrolytic cell body are simultaneously connected with the scandium-containing oxide decomposition control part. According to the device, ore with high scandium enrichment serves as a raw material, so that the production cost is greatly reduced, and the production process is simplified. Moreover, the activity of fluorine ions in the electrolyte is detected through the electrochemical sensor, and the addition amount of the scandium-containing oxide is accurately controlled, so that the performance of the scandium-containing aluminum alloy material is improved.

Description

technical field [0001] The invention relates to the technical field of alloy material preparation, in particular to a preparation device and a preparation process of a scandium-containing aluminum alloy material. Background technique [0002] In recent years, with the rapid development of automobiles and electromechanical products, especially in order to meet the requirements of lightweight vehicles and household appliances and electronic products, the demand for aluminum is increasing geometrically; While further reducing and thinning the weight and thickness of the aluminum alloy parts produced by processing, the strength cannot meet the user's requirements, but the user has proposed more in terms of improving the strength of the aluminum alloy that is light in weight, low in price, and easy to process. high demands. [0003] Scandium is a 3d element, and its lattice constant, density, and physical and mechanical properties are closer to aluminum, yttrium and titanium. As...

Claims

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Application Information

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IPC IPC(8): C25C3/36C25C7/00
CPCC25C3/36C25C7/005
Inventor 张祝
Owner SUZHOU SABO IND DESIGN
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