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Method for recovering nanometer ceramic particles in magnesium-based composite material

A technology of nano-ceramic particles and composite materials, which is applied in the field of nano-material manufacturing, can solve the problems of non-reuse of reinforcements, waste of resources, etc., and achieve the effects of changing melt properties, low cost, and lowering melting point.

Inactive Publication Date: 2021-10-29
哈尔滨六方新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method that can solve the problem that a large amount of resources are wasted due to the fact that the high-content reinforcement inside the nano-ceramic particle-reinforced magnesium-based composite material cannot be reused after failure.

Method used

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  • Method for recovering nanometer ceramic particles in magnesium-based composite material
  • Method for recovering nanometer ceramic particles in magnesium-based composite material
  • Method for recovering nanometer ceramic particles in magnesium-based composite material

Examples

Experimental program
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Embodiment 1

[0031] A method for recovering nano-ceramic particles in a magnesium-based composite material of the present embodiment, it is carried out according to the following steps:

[0032] 1. First, heat and melt scrapped or invalid nano-titanium carbide particle-reinforced magnesium-based composite components at 700°C in a crucible to obtain a magnesium alloy melt;

[0033] 2. Mix and grind the three metal salts of sodium chloride, potassium chloride and calcium fluoride according to the ratio of 4:4:1, then add them to the magnesium alloy melt in turn and gradually stir for 10 minutes. Placed for 30 minutes to promote the spontaneous movement of titanium carbide particles from the magnesium alloy matrix to the mixed molten salt;

[0034] 3. Water cooling and solidification of the crucible containing magnesium alloy, titanium carbide particles and mixed salt;

[0035] 4. Soak the ingot in the aqueous solution for 3-5 hours to dissolve all the crystalline salt on the surface of the ...

Embodiment 2

[0041] A method for recovering nano-ceramic particles in a magnesium-based composite material of the present embodiment, it is carried out according to the following steps:

[0042] 1. First, heat and melt the failed nano-silicon carbide particle-reinforced magnesium-based composite component in a crucible at 700°C;

[0043] 2. Mix and grind the four metal salts of sodium chloride, potassium chloride, magnesium chloride and calcium fluoride according to the ratio of 4:4:1:1, and then add them to the magnesium alloy melt in turn and gradually stir for 10 minutes. After the mixed salt is completely melted, let it stand for 30 minutes to promote the spontaneous movement of the reinforcement from the magnesium alloy matrix to the mixed molten salt;

[0044] 3. Water cooling and solidification of the crucible containing magnesium alloy, nano-silicon carbide particles and mixed salt;

[0045] 4. Soak the ingot in the aqueous solution for 10 hours so that all the crystalline salts o...

Embodiment 3

[0048] A method for recovering nano-ceramic particles in a magnesium-based composite material of the present embodiment, it is carried out according to the following steps:

[0049]1. First, heat and melt the failed nano-titanium carbide particle-reinforced magnesium-based composite component in a crucible at 700°C;

[0050] 2. Mix and grind the four metal salts of sodium chloride, potassium chloride, magnesium chloride and calcium fluoride according to the ratio of 4:4:1:1, and then add them to the magnesium alloy melt in turn and gradually stir for 10 minutes. After the mixed salt is completely melted, let it stand for 30 minutes to promote the spontaneous movement of the reinforcement from the magnesium alloy matrix to the mixed molten salt;

[0051] 3. The crucible containing magnesium alloy, nano-titanium carbide and mixed salt is subjected to hydrocooling solidification;

[0052] 4. Soak the ingot in the aqueous solution for 10 hours to dissolve all the crystalline salt...

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Abstract

The invention discloses a method for recovering nanometer ceramic particles in a magnesium-based composite material, and relates to the field of nanomaterial manufacturing. The invention aims to solve the problem that after nanometer ceramic particle reinforced magnesium-based composite materials loses efficacy, high-content reinforcements in the nanometer ceramic particle reinforced magnesium-based composite material cannot be reutilized and a large amount of resources are wasted. The method comprises the following steps: heating and melting a failed magnesium-based composite material containing nanometer ceramic particles; mixing and grinding sodium chloride, potassium chloride and calcium fluoride, adding the obtained mixture into a magnesium alloy melt, conducting stirring, then performing standing, and carrying out water cooling on a crucible containing a metal melt and molten salt; finally, soaking a cast ingot in an aqueous solution for a period of time so as to obtain turbid liquid containing the nanometer ceramic particles; and washing the turbid liquid multiple times to realize the recovery of the nanometer ceramic particles. The method is a simple and efficient reinforcement recycling technology. The method has huge economic benefits for recycling the nanometer ceramic particles with high additional value. The method is applied to the field of material recovery.

Description

technical field [0001] The invention belongs to the field of nanomaterial manufacturing, and in particular relates to a recovery method for nano ceramic particles in magnesium-based composite materials. Background technique [0002] Magnesium is the lightest metal structure material, the density of pure magnesium is 1.7g / cm 3 . Magnesium has high specific stiffness and specific strength, good damping performance, electromagnetic shielding performance and good biocompatibility, and magnesium has abundant reserves on the earth, so magnesium and magnesium alloys are widely used in aviation, automobile, national defense and 3C products And biomedical has great potential to improve energy efficiency and improve the overall performance of the system. However, magnesium and magnesium alloys have low absolute strength, poor creep resistance, and poor corrosion resistance at room temperature and low temperature, and these shortcomings limit the wide application of magnesium alloys ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/626C04B35/569C04B35/56C22C23/00B82Y40/00
CPCC04B35/62665C04B35/62204C04B35/565C04B35/5611C22C23/00B82Y40/00
Inventor 李雪健王晓军林炜
Owner 哈尔滨六方新材料科技有限公司