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Good plasticity is required for 3D printing metal powder. This powder must meet the following requirements: small particle sizes, tight distribution of particles, high fluidity, good fluidity, high bulk density and fineness.
Three types of preparation for 3D printing metallic powder are available: reduction method; electrolysis method; grinding method; atomization method. The most common pulverizing process in China is the argon atomization and plasma rotating electro methods.
An argon atomization is a process that makes powder by using the fast flowing, argon gases flow. This method uses the impact of the metal liquid to break it into small particles. Then, the solid powder can be condensed.
2. Plasma rotating electrode technique
Plasma state can be described as the fourth state. You can simply describe the plasma rotating electrode atomization process (prep method) as follows: After the metal or alloy is made, it melts under the coaxial plasma-arc heating source, to form liquid electrode. Next, the liquid droplet is spun out at high speed under the rotational centrifugal force to form droplets. Finally, under the shear stress the molten dropslet is broken down and cools to solidify under surface tension.
Here are some of the benefits that metal powder created by plasma rotating electro method:
Smooth surface, high sphericity with high fluidity and low loose density. This powder is ideal for printing because it has very little sphericity.
Lempotee advanced Material Tech Co., Ltd. is a professional Powders for metal 3D printing Over 12 years’ experience in developing and researching chemical products. You can pay by Credit Card, T/T or West Union. Trunnano ships goods by FedEx or DHL to overseas customers by air and sea.
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