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How is the metal powder used for 3D printing made?
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- Time of issue:2021-01-19 00:00
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(Summary description)In 3D printing, a lot of metal powders are often used, but everyone has thought about this problem. How are the metal powders used for 3D printing made? I believe that many people are not clear. In or
How is the metal powder used for 3D printing made?
(Summary description)In 3D printing, a lot of metal powders are often used, but everyone has thought about this problem. How are the metal powders used for 3D printing made? I believe that many people are not clear. In or
- Categories:Company news
- Author:
- Origin:
- Time of issue:2021-01-19 00:00
- Views:0
Information
In 3D printing, a lot of metal powders are often used, but everyone has thought about this problem. How are the metal powders used for 3D printing made? I believe that many people are not clear. In order to help you, I will give you a brief introduction.
The preparation method of metal powder can be divided into reduction method, electrolysis method, grinding method, atomization method and so on. However, the two methods commonly used in China are the argon atomization method and the plasma rotating electrode method.
1, Argon atomization method
argon atomization method refers to the use of fast-flowing argon gas to impact metal liquid, and then break it into fine particles, which can be formed into granular solids and powders after condensation.
2, plasma rotating electrode method
The production process of metal powder made by plasma rotating electrode method can be simply described as making a metal or alloy into a consumable electrode, and the end of the consumable electrode is melted to form a liquid film under the action of a coaxial plasma arc heating source. The liquid film is thrown out at high speed under the action of rotating centrifugal force to form droplets. The molten droplets rub against the inert gas (argon or helium) in the atomization chamber, and are further broken under the action of shear stress, and then the droplets act on the surface tension. Under rapid cooling, it solidifies into spherical powder.
The metal powder produced by this method has the following advantages:
With high sphericity, smooth surface, and good fluidity, the density of printed products will be higher;
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