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Core-shell structure powder preparation device and method

A core-shell structure and system technology, used in transportation and packaging, metal processing equipment, coatings, etc., can solve problems such as waste liquid treatment, environmental pollution, and environmental pollution.

Active Publication Date: 2020-11-03
西安赛隆增材技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Electroless plating reduces metal ions from solution metal salts to form a coating through a redox mechanism, but this method is easy to pollute the environment
The sol-gel method is also a chemical process of uniform mixing of composite powders, which mainly involves the hydrolysis reaction and subsequent condensation reaction of molecular precursors in the solution, which also brings problems of environmental pollution and waste liquid treatment.

Method used

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  • Core-shell structure powder preparation device and method
  • Core-shell structure powder preparation device and method

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preparation example Construction

[0051] Second, a method for preparing a core-shell structure powder is provided in this exemplary embodiment. refer to figure 2 As shown in, the preparation method of the core-shell structure powder may include:

[0052] S101: Install one end of the housing rod 102 on the rotating unit 106, and place the other end in the atomization chamber 100, the axis of the housing rod 102 is located on the rotation center of the rotating unit 106;

[0053] S102: Turn on the first driving mechanism, so that the first driving mechanism drives the rotation unit 106 to rotate, so that the shell bar 102 installed on the rotation unit 106 rotates;

[0054] S103: Turn on the heat source 101, and heat the end surface of the shell rod 102 inside the atomization chamber 100 to melt it to form a liquid film, and the liquid film is thrown out under the action of centrifugal force to form a liquid line;

[0055] S104: Turn on the second driving mechanism, so that the second driving mechanism drives...

specific Embodiment 1

[0063] Metal Ni is processed into a shell bar stock 102 with a diameter of φ60mm, and then the shell bar stock 102 is connected to the rotating unit 106;

[0064] Turn on the vacuum unit 109 to vacuumize the atomization chamber 100 to ensure that the ultimate vacuum of the atomization chamber 100 reaches 5×10 -3 Pa;

[0065] Open the inert gas supply unit 110 and fill the interior of the atomization chamber 100 with high-purity argon gas to a positive pressure of 0.04-0.1Mpa, so as to meet the high-purity inert atmosphere environment of the atomization powder forming process;

[0066] Turn on the first driving mechanism to drive the rotating unit 106 to rotate so as to drive the shell bar 102 to rotate at a speed of 20000r / min;

[0067] Turn on the heat source 101, apply high temperature to the end surface of the housing rod 102 located in the atomization chamber 100, and make it melt to form a liquid film; the liquid film is thrown out under the action of high-speed centrifu...

specific Embodiment 2

[0073] Metal chromium is processed into a shell bar stock 102 with a diameter of φ30mm, and then the shell bar stock 102 is connected to the rotating unit 106;

[0074] Turn on the vacuum unit 109 to vacuumize the atomization chamber 100 to ensure that the ultimate vacuum of the atomization chamber 100 reaches 5×10 -3 Pa;

[0075] Open the inert gas supply unit 110 and fill the interior of the atomization chamber 100 with high-purity argon gas to a positive pressure of 0.04-0.1Mpa, so as to meet the high-purity inert atmosphere environment of the atomization powder forming process;

[0076] Turn on the first driving mechanism to drive the rotation unit 106 to rotate so as to drive the shell bar 102 to rotate at a speed of 50000r / min;

[0077] Turn on the heat source 101, apply high temperature to the end surface of the housing rod 102 located in the atomization chamber 100, and make it melt to form a liquid film; the liquid film is thrown out under the action of high-speed cent...

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Abstract

The invention relates to a core-shell structure powder preparation device. The core-shell structure powder preparation device comprises an atomizing chamber, a heat source, a powder feeding unit, a rotating unit, a feeding unit and a driving unit; the heat source comprises a heating part located inside the atomizing chamber, and the powder feeding unit is used for feeding core body powder into theatomizing chamber; the rotating unit is connected with the end, located outside the atomizing chamber, of a shell bar to drive the shell bar to rotate with the axis of the shell bar as a rotating shaft, and the feeding unit is used for pushing the shell bar to the heat source in the axial direction; and the driving unit comprises a first driving mechanism and a second driving mechanism, the firstdriving mechanism is connected with the rotating unit, and the second driving mechanism is connected with the feeding unit. According to the core-shell structure powder preparation device, on one hand, environmental pollution cannot be caused, on the other hand, produced core-shell structure powder is high in sphericity degree and good in fluidity, and the thickness of a shell layer wrapping a core body in the powder can be controlled to a certain extent.

Description

technical field [0001] The invention relates to the technical field of powder metallurgy, in particular to a core-shell structure powder preparation device and method. Background technique [0002] In recent years, as an important branch of new material science, composite materials have made great progress in theoretical research and practical application, and have become the research focus in the field of new material science. Among them, the application prospect of particle reinforced composite materials is very bright. Reinforced composite materials are surface-modified powders by coating powders or modifying functional groups. as in Al 2 o 3 Dispersion or coating of metal nanoparticles such as nickel on the surface of typical ceramic powders such as SiC or SiC can promote sintering, improve its conductivity or endow the carrier powder with new functional properties. [0003] In related technologies, the surface coating of the powder is mainly achieved by methods such ...

Claims

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Application Information

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IPC IPC(8): B22F1/02B22F9/10
CPCB22F9/10B22F1/17
Inventor 孙念光陈斌科向长淑汤慧萍朱纪磊贺卫卫凤治华王超杨伟刚
Owner 西安赛隆增材技术股份有限公司