Preparation method of spherical AlSi7Mg powder

 The spherical powder AlSi7Mg mainly has the characteristics of high spherical shape, smooth surface, fewer satellite spheres, low oxygen content, uniform particle size distribution, good fluidity, and high bulk density and tap density. The particle size is generally 0-45μm, 0-53μm, 15-45μm, 15-53μm, 45-105μm. Tanki New Materials Co., Ltd. can also customize the required particle size according to customer needs.

At present, the preparation methods of spherical AlSi7Mg powder can be divided into: reduction method, electrolysis method, carbonyl decomposition method, grinding method, atomization method, etc. according to the preparation process.

Among them, spherical AlSi7Mg powder produced by reduction, electrolysis and atomization methods is more commonly used in the powder metallurgy industry as a raw material. However, the electrolysis method and the reduction method are limited to the production of elemental metal powders and are not applicable to alloy powders. The production of alloy powder can adopt the atomization method, and modern atomization technology can also control the shape of the powder. The continuous development of the atomization cavity structure has greatly improved the atomization efficiency, and the atomization method has gradually developed into the main powder production method. The atomization method meets the special requirements of spherical AlSi7Mg powder. The atomization method refers to a method of mechanically crushing molten metal into particles less than 150μm in size.

Preparation method of spherical AlSi7Mg powder

According to the method of crushing molten metal, it can be divided into atomization methods, including two-stream atomization, centrifugal atomization, ultrasonic atomization, vacuum atomization and so on. These atomization methods have their own characteristics and have been successfully applied in industrial production. Among them, the water vapor atomization method has the advantages of simple production equipment and process, low energy consumption, large batches, etc., and has become the main method for industrial production of metal powders.

The gas atomization method is one of the main methods for producing spherical AlSi7Mg powder and alloy powder. The basic principle of gas atomization is the process of using high-speed airflow to break the liquid metal stream into small droplets and solidify into powder. The prepared powder has become the main development direction of high-performance special alloy powder preparation technology due to its advantages such as high purity, low oxygen content, controllable powder particle size, low production cost, and high sphericity. However, the gas atomization method also has disadvantages. The energy of high-pressure airflow is much less than that of high-pressure water flow. Therefore, the pulverization efficiency of gas atomization on molten metal is lower than that of water atomization, so that the atomization efficiency of gas atomized powder is lower. This increases the cost of preparing atomized powder. 

Vacuum atomization crushing refers to smelting metals or metal alloys under vacuum conditions. Under the protection of gas, the high-pressure gas stream atomizes the metal liquid into a large number of small droplets, which solidify into spherical or sub-shaped droplets during flight. Spherical particles. Vacuum atomization powder can prepare most of the metal and its alloy powders that cannot be produced by atomization in air and water, and can obtain spherical or subspherical powders. Since the solidification quickly overcomes the segregation phenomenon, many special alloy powders can be prepared. Using a suitable process, the powder particle size can reach the required range.

Overview of spherical AlSi7Mg powder

AlSi7Mg powder has high sphericity, smooth surface, less satellite spheres, low oxygen content, uniform particle size distribution, good fluidity, high bulk density and tap density

Application of spherical AlSi7Mg powder

Spherical AlSi7Mg powder is mainly used for aerospace parts and auto parts, profile surface spraying and powder metallurgy.

Spherical AlSi7Mg powder can be used in various metal 3D printers, including Renishaw in the United Kingdom, EOS (EOSINT M series) in Germany, concept lasers, 3D systems in the United States, laser melting equipment, and domestic research institutions and companies. Research and development of selected laser melting Equipment, such as Huaying Hi-Tech, Platinum, etc.

Price of spherical AlSi7Mg powder

The price and production cost of spherical AlSi7Mg powder, transportation cost, international conditions, exchange rate, and supply-demand relationship vary randomly in the molybdenum disilicide market. Tanki New Materials Co., Ltd. aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for the price of spherical AlSi7Mg powder, please feel free to contact the latest price of spherical AlSi7Mg powder.

Spherical AlSi7Mg powder suppliers

As a global supplier of spherical AlSi7Mg powder, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of powder materials (including oxides, carbides, nitrides, single metals, etc.) high-purity targets, functional ceramics and structural devices, and provides OEM services.

Technical parameters of 3D printing aluminum-based alloy powder AlSi7Mg powder:
Product NameSiMnZnAlMgCuTi
AlSi7Mg6.5-6.7%≤0.1%≤0.1%Bal.0.5-0.8%≤0.05%≤0.2%


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