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Method of refining high-purity magnesium

A high-purity, refining agent technology, applied to the surface coating liquid device, anodic oxidation, coating, etc., can solve the problems of high-purity magnesium refining, easy to volatilize, easy to oxidize, etc.

Inactive Publication Date: 2010-08-11
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Because magnesium is easy to oxidize, volatilize, refining, and casting process is complicated, the refining of high-purity magnesium has become a major problem. At present, there are still many technical deficiencies in the refining of high-purity magnesium.

Method used

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  • Method of refining high-purity magnesium
  • Method of refining high-purity magnesium
  • Method of refining high-purity magnesium

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Embodiment Construction

[0109] The present invention will be further described below in conjunction with accompanying drawing:

[0110] As shown in Figure 1, it is the melting and casting state diagram of the vacuum melting furnace. The melting furnace is in the shape of a circular cylinder. The space between the furnace body and the furnace cover must be strictly scrubbed with acetone and sealed with Vaseline. Vacuum the dust out of the mouth, and then wash it with deionized water and dry it.

[0111] The water circulation condensing port is connected with the water circulation condensing device to ensure that the temperature in the furnace cavity is constant during heating, smelting and casting to ensure safety.

[0112] The vacuum port is connected with the rotary vane pump, Roots pump, diffuser pump, pneumatic valve and filter to ensure constant vacuum and argon pressure in the melting furnace cavity.

[0113] The gas outlet should be unblocked, it is the outlet of the exhaust gas in the furnace...

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Abstract

The invention relates to a method for refining high-purity magnesium, which comprises the following steps: aiming at the characteristics of easy oxidization and volatile of pure magnesium, taking crude magnesium as a raw material, using a refining agent, and refining the crude magnesium in a vacuum smelting furnace; at an atmosphere that the pressure of argon is 100 Pa, under the conditions of bottom argon stirring and water circulation cooling, completing the refining and casting of the pure magnesium; and cutting under the protection of argon, and preparing the high-purity magnesium after electrolytic oxidization and epoxide resin impregnation and sealing, wherein the purity of the magnesium is 99.99 percent. The method makes the preparing and refining of the high-purity magnesium possible, and the refining temperature is 720 DEG C and the casting temperature is 680 DEG C; and the method fills the scientific research blank for refining the high-purity magnesium, and is an ideal method for refining and preparing the high-purity magnesium.

Description

technical field [0001] The invention relates to a method for refining high-purity magnesium, belonging to the technical field of non-ferrous metal smelting and casting. Background technique [0002] Among non-ferrous metals, magnesium is one of the light metals, with light specific gravity, low density, high specific strength and specific stiffness, good thermal and electrical conductivity, good damping and shock absorption and electromagnetic shielding performance, easy to die-cast, excellent cutting performance, and easy to recycle It can be reused and matched with other elements to make magnesium-based alloys, which are widely used in aerospace, transportation, electronic devices, instruments and meters, and communication equipment. [0003] Magnesium is one of the widely distributed elements in the earth's crust. The storage of magnesium is relatively abundant, accounting for 2.1% of the weight of the earth's crust. The final dolomite is calcined to make magnesium calci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B26/22C22B9/10C22B9/04B22D21/04C25D11/30B05D7/14B05D7/24
Inventor 李明照许并社范晋平余春燕王跃琪卫英慧樊建峰李琮
Owner TAIYUAN UNIV OF TECH