Water atomization is one of the important preparation methods for 3D printing metal powder

New technology in printing is 3D printing. Its unique advantage is the ability to directly create parts of any form from computer graphics data. Without the use of molds or machining, it greatly speeds up product development, reduces manufacturing costs, and increases productivity. The most popular raw material to 3D print metal parts has been 3D printing powder. 3D printing metallic powder is the most significant part of 3D printing.

Metal powder preparation

The current metal powder preparation techniques can be classified into one of the following categories: electrolysis, reduction, or carbonyl decomposition. The preparation method is what determines the final product. Powders made by electrolysis, reduction and atomization are the most commonly used as raw materials in the powder metalurgical industry. You can use the atomization method to make alloy powder. Modern atomization processes can even control the shape and size of the powder. The atomization technique is gradually becoming the preferred method for powder production due to the continuous improvement of its atomization cavity structure. 3D printing requires a specific atomization method. A mechanical process that pulverizes molten metal to produce small particles of less than 150 m is called the atomization technique.

Water atomization

Water atomization is one method that can be used to produce atomized dust. Water atomization medium is both cheap and simple to get, but it also has excellent atomization performance. The domestic water atomization process is currently used to create steel powder and matrix for diamond tools. It also produces pre-alloy and oil-bearing bearings and powder for hard surfaces technology. Because water’s specific heat is greater than the capacity of gases, when the atomization takes place, broken metal particles can solidify quickly, which causes irregularities in the powder. Water can react with other alloys and metals which have high activity. In addition, powders with high activity will react to water. This is why water atomization cannot be used to prepare metal powders with low sphericity or high oxygen content.

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