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Atomization is the process of breaking up a liquid stream into fine droplets, creating a spray that can be used in manufacturing processes. The spray is produced when the potential energy of a liquid in contact with air is converted into kinetic energy (velocity). Atomization can take place at both low and high temperatures. Generally speaking, the higher the temperature of the liquid, the faster the rate at which it is atomized.For example, water atomizes very rapidly at a temperature of 100° C. This is because the liquid’s shear viscosity decreases with increasing shear temperature, reducing the energy required for forming cavitation bubbles at the surface of the drop. As a result, the heating of the drop centre is reduced which increases the atomization threshold.Similarly, for oil atomization, the atomization threshold increases with increasing shear viscosity. This is because the increased shear causes an increase in absorption of the standing spherical wave at the surface of the liquid, which reduces the acoustic pressure level. Consequently, the resulting cavitation bubbles are less stable, and a greater amount of energy is required to break up the drop at high shear rates.Gas atomization is also a widely used method of atomizing metal powders. https://userscloud.com/vs9dtmsuknmg This type of atomization produces very pure powders that support extremely tight chemistry tolerances. As a result, they are very versatile and can be used across a broad range of applications. The morphology of the powders is very different from those produced by liquid atomization. They are spherically shaped and free flowing, which makes them ideal for additive manufacturing.To produce a powder with the right chemistry, the atomizer is set to a specific gas volume and temperature. The shaper, bell speed rotation and shaping air value are all important variables for controlling the atomization process. Increasing the shaper and bell speed rotation can increase the spray velocity and atomization efficiency. However, excessive atomization stresses the particles and can cause particle damage, which reduces powder flowability, coating quality and consistency.Atomization of metal powders by gas atomization is achieved when the liquid metal stream passes through a nozzle and collides with the shaper. The collision breaks the stream into spherical powder particles that solidify in flight. These particles are of a very precise chemistry and can be used in an additive manufacturing application, with no need to add additional alloys or chemicals to match the original molten metal stream. In addition, they can be sized to suit the desired end use. This is an attractive feature because it reduces the complexity of a production process, saving time and money. For more information on the atomization process and its advantages, please contact us. We can provide expert advice on all aspects of metallurgy and atomization technology. Our team of professionals can help you find the right solution for your application and help you get started quickly. AP&C offers a full line of high-quality pre-alloyed powders. They are spherically sized and offer high packing density, which maximizes the amount of material in a given space. They are available in a wide range of sizes and are designed for use in the latest additive manufacturing technologies.