kaasuatomoinnilla

Kaasuatomoinnilla, also known as gas atomization, is a process used for producing fine metal powders. It involves melting a metal or alloy and then atomizing the molten stream with a high-pressure gas. The gas, typically nitrogen, argon, or helium, breaks the molten metal into tiny droplets. These droplets then rapidly cool and solidify as they fall through a cooling chamber, forming spherical or near-spherical powder particles.

The particle size distribution of the resulting powder can be controlled by adjusting parameters such as the gas pressure, the nozzle design, and the melt stream characteristics. Gas atomization is a widely used method because it can produce powders with high purity and good flowability. It is suitable for a variety of metals and alloys, including ferrous and non-ferrous metals, superalloys, and refractory metals. The powders produced by gas atomization find applications in various industries, such as additive manufacturing (3D printing), powder metallurgy, thermal spray coatings, and metal injection molding. The shape and size of the particles are crucial for the performance of these applications.