Do you know the uses and functions of aluminum powder? As science and technology advance and research efforts intensify, products incorporating aluminum powder are increasingly appearing in our daily lives. So, do you, who’s watching right now, understand the purposes and benefits of aluminum powder? Let’s dive in together—follow along as we explore this fascinating topic!
Do you know the uses and functions of aluminum powder? As far as I understand, aluminum powder—also known locally as "silver powder"—is a fundamental raw material product. It appears as a silvery-white to grayish powder, with the shade of gray diminishing as particle size increases and intensifying as particle size decreases. There are several production methods for aluminum powder, including air atomization, inert gas atomization, and water-assisted atomization. Among these, inert gas atomization—specifically the nitrogen atomization process—is most commonly used. This method operates in a nearly closed-loop system: compressed nitrogen gas is forced through a nozzle, breaking down molten aluminum into fine droplets. These droplets are then rapidly cooled by the surrounding nitrogen gas, solidifying into metallic powder. Finally, the powder undergoes a grading process, where it’s separated into different particle-size ranges before being further refined via secondary classification. In the end, the finely sorted, spherical aluminum powder is collected using baghouse dust collection technology. Compared to air atomization, this inert gas-based process is significantly safer, producing high-quality, spherical aluminum powder that boasts exceptional reactivity and outstanding application value.
Aluminum powder boasts excellent opacity, strong shielding properties, and remarkable light-reflecting capabilities, along with a unique "bicolor effect." As a result, aluminum powder is widely used in industries such as metallic aluminum pigments (including aluminum silver powder and aluminum silver paste—note that aluminum powder for pigment applications must first be milled into flake-like shapes), solar energy electronic pastes, refractory materials, pharmaceutical intermediates, and chemical catalysts. It’s also employed for fingerprint identification and in the production of fireworks.
That’s all for today’s “Did You Know About the Uses and Functions of Aluminum Powder?” We hope this information was helpful. Don’t forget to stay tuned—your next installment will bring you even more industry-related insights!
