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A device for strong shearing of magnesium metal melt

A metal magnesium and strong shearing technology, applied in the field of magnesium and magnesium alloys, can solve problems such as uneven distribution, failure to fully utilize the potential advantages and characteristics of magnesium alloy materials, and difficulty in meeting high-performance structural materials

Active Publication Date: 2020-10-27
QINGHAI SALT LAKE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a strong shear processing equipment for metal magnesium melt to improve the quality of magnesium metal products, and to solve the problem that the grain structure and precipitation phase of cast magnesium alloy are relatively coarse and unevenly distributed, and it is difficult to meet the requirements of high-performance structural materials. The demand for magnesium alloy materials has not fully utilized the potential advantages and characteristics of the problem

Method used

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  • A device for strong shearing of magnesium metal melt
  • A device for strong shearing of magnesium metal melt
  • A device for strong shearing of magnesium metal melt

Examples

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Embodiment approach

[0052] According to an embodiment of the present invention, the twist angle of the impeller blade edge 122 of the second impeller blade B is larger than that of the first impeller blade A. As shown in FIG.

[0053] The second impeller blade B is close to the inlet direction of the metal magnesium melt, such as Figure 5 As shown, it is the impeller blade B at the bottom, the two impeller blades rotate coaxially, the twist angle of the impeller blade 122 of the second impeller blade B is greater than the twist angle of the impeller blade 122 of the first impeller blade A, so that the metal The magnesium melt passes through the primary shearing of the second impeller blade B, forms a turbulent flow between the impeller blade and the first housing, and then undergoes secondary shearing of the first impeller blade A. Wherein, the shear density at the second impeller blade B is smaller than the shear density at the first impeller blade A. The shearing effect on the metal magnesium...

Embodiment

[0082] The molten magnesium in the electrolytic cell is extracted and fed into the continuous refining furnace, which has six compartments called "furnace chambers". Two separate liquid phases are operated in the continuous refining furnace, the bottom liquid phase is molten salt, and the upper liquid phase is molten metal magnesium (ie, metal magnesium melt). The bottom of the refining furnace is connected so that the molten salt can flow throughout the refining furnace in order to maintain the temperature of the refining furnace through the AC electrodes and electrolyte resistance. The refined magnesium and magnesium alloy melts are processed by a strong shear process and then transferred to the casting station of the magnesium ingot casting machine, where the casting operation starts at 685°C. The metal magnesium melt is cooled and solidified into solid magnesium and magnesium alloy ingots at 350-450°C, and then the magnesium ingots are cooled to below 60°C by means of wate...

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Abstract

Disclosed is a strong shearing device for metallic magnesium melt. The strong shearing device comprises an impeller 1 and a first shell 2; the impeller 1 comprises an impeller shaft and impeller blades 12, and the impeller blades 12 are mounted on the impeller shaft 11; the impeller blades 12 include an impeller blade body 121 and impeller blade edges 122, and the torsional angle of the impeller blade edges 122 is 4.2-10 degrees; the first shell 2 is of a cavity structure formed by side walls and a top wall, and the first shell 2 includes a magnesium melt inlet and a magnesium melt outlet. Defects such as porosity and inclusion caused by disordered arrangement of atoms in the magnesium ingots can be reduced, and the quality of the magnesium ingots and performance requirements are effectively improved.

Description

technical field [0001] The invention relates to the technical field of magnesium and magnesium alloys, in particular to a strong shearing treatment process for metal magnesium melt. Background technique [0002] Magnesium alloy has the characteristics of light specific gravity, high specific strength and specific stiffness, and easy recycling. It can meet the requirements of weight reduction and energy saving in aviation, aerospace, modern automobiles, rail transit, ships, national defense and military industries. It is the third largest metal structure material after aluminum and is known as the green engineering material of the 21st century. Magnesium will become an important strategic material support for the revitalization and innovation of China's manufacturing industry. The development of the magnesium industry in Salt Lake will promote the upgrading of basic materials in the world and accelerate the transformation of related industries. Magnesium alloy is the lightes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D1/00B22D45/00B23D31/00
CPCB22D1/00B22D45/00B23D31/00
Inventor 哈权章李国栋黄丽萍
Owner QINGHAI SALT LAKE IND