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Method for producing magnesium-zirconium inter mediate alloy

A magnesium-zirconium master alloy and a production method technology are applied in the production field of magnesium-zirconium master alloy, which can solve the problems of polluted environment, difficult quality control, difficult operation and the like, and achieve the effects of simple production process, easy operation and improved product quality.

Inactive Publication Date: 2005-02-16
锦州市金属材料研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the existing magnesium alloy smelting operation difficulties, difficult quality control, and environmental pollution problems, change the existing production mode of directly adding fluorozirconate during magnesium alloy smelting, and provide a production process A simple and stable product quality magnesium-zirconium master alloy production method, using magnesium-zirconium master alloy instead of fluorozirconate, improving the magnesium alloy smelting process, reducing environmental pollution, and improving the quality of magnesium alloy products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] 1.1. Add metal magnesium and potassium salt KCL into the reduction furnace in a ratio of 1:1.5 by weight, start the vacuum system, stop vacuuming when the vacuum degree reaches 1Pa, and continuously feed argon as a protective gas. The pressure is +0.006MPa;

[0016] 1.2. According to the weight ratio of metal magnesium and zirconium tetrachloride 1:2, take zirconium tetrachloride and add it to the preheating furnace, start the vacuum system, when the vacuum degree reaches 6×10 -1 Pa, stop vacuuming, zirconium tetrachloride is heated, and through 2 hours, zirconium tetrachloride is heated to 330 ℃, zirconium tetrachloride is vaporized;

[0017] 1.3. While feeding the inert gas into the reduction furnace, heat the metal magnesium and potassium salt KCL. After 5 hours, heat the material to 950°C, and when the material reaches this temperature, introduce the vaporized zirconium tetrachloride into the reduction furnace. React with molten magnesium in the furnace for 8 hours...

Embodiment 2

[0019] 2.1. Add metal magnesium and potassium salt KF into the reduction furnace at a weight ratio of 1:0.9, start the vacuum system, and when the vacuum reaches 8×10 -1 Pa, stop vacuuming, and continuously feed argon as a protective gas, and the pressure in the furnace is +0.01MPa;

[0020] 2.2. According to the weight ratio of metal magnesium to zirconium tetrachloride 1:1.5, take zirconium tetrachloride and add it to the preheating furnace, start the vacuum system, when the vacuum degree reaches 4×10 -1 Pa, stop vacuuming, zirconium tetrachloride is heated, and through 5 hours, zirconium tetrachloride is heated to 600 ℃, zirconium tetrachloride is vaporized;

[0021] 2.3. While feeding the inert gas into the reduction furnace, heat the metal magnesium and potassium salt KF. After 3 hours, heat the material to 750°C, and when the material reaches this temperature, introduce the vaporized zirconium tetrachloride into the reduction furnace React with molten magnesium in the f...

Embodiment 3

[0023] 3.1. Add the mixture of metal magnesium and potassium salt KCL and KF into the reduction furnace in a weight ratio of 1:0.5, KCL:KF is a weight ratio of 3:1, start the vacuum system, when the vacuum reaches 5×10 -1 Pa, stop vacuuming, and continuously feed argon as a protective gas, and the pressure in the furnace is +0.02MPa;

[0024] 3.2. According to the ratio of metal magnesium to zirconium tetrachloride weight ratio of 1:1, take zirconium tetrachloride and add it to the preheating furnace, start the vacuum system, and stop vacuuming when the vacuum degree reaches 1Pa. Heating, after 4 hours, heating the zirconium tetrachloride to 500°C to vaporize the zirconium tetrachloride;

[0025] 3.3. While feeding the inert gas into the reduction furnace, heat the metal magnesium and potassium salt. After 2 hours, heat the material to 650°C, and when the material reaches this temperature, introduce the vaporized zirconium tetrachloride into the reduction furnace React with m...

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PUM

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Abstract

A production method of magnesium zirconium interalloy deals with the operational difficulties of smelting magnesium alloy now, the difficulties of controlling the quality and environmental pollution. The production method is: take magnesium and sylvite into reduction furnace with the weight composition of 1:0.5-1.5, when degree of vacuum is no more than 1Pa, stop vacuumizing, heat tetrazirconium chloride, vaporize it,; when reduction furnace opens inert gas, heat magnesium and sylvite 2-5 hours, up to 650-950 deg.C, take the vaporized tetrazirconium chloride into reduction furnace to react with fusing magnesium, 8-14 hours, then, mechanically stir 0.5-1 hours, cool down to room temperature, gain magnesium zirconium interalloy of this invention.

Description

technical field [0001] The invention belongs to the field of nonferrous metal production, in particular to a production method of a magnesium-zirconium master alloy. Background technique [0002] Magnesium alloys are widely used in technical fields such as aerospace, transportation, and electronics industries due to their light weight, high damping properties, high electronegative properties, and anti-electromagnetic interference. In the prior art, a certain amount of zirconium needs to be added when smelting magnesium alloys. The existing way of adding zirconium is to directly add fluorozirconate. The disadvantage of directly adding zirconium during smelting is that the amount of salt added is large, Generally, it is 8 to 10 times of the calculated composition, and the melt must be overheated to 900°C, which is difficult to operate. In addition, due to the large amount of salt added, the slag produced during the smelting process is also relatively large, which has a negati...

Claims

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Application Information

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IPC IPC(8): C22C1/03C22C23/00
Inventor 王明秋黎明吴岩刚
Owner 锦州市金属材料研究所
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