Centrifugal Atomization of Zinc Metal Powder for Friction Materials Application

Abstract:

In the present work, a centrifugal atomization was studied for producing zinc metal powder. The effect of rotating disc speed on median particle size, particle size distribution and standard deviation, production yield, and morphology of the atomized zinc powder was investigated. The atomization was carried out using graphite flat disc, melt pouring temperature, preheating disc temperature and melt feed rate of 40 mm, 550 °C, 300 °C and 50 kg/h, respectively. The atomizer disc speeds were varied from 10,000 to 30,000 rpm. It was evidenced from the experimental results that the median particle size and standard deviation of zinc metal powder decreased with increasing disc speed. The production yield tended to increase with increasing rotating speed. SEM images revealed that most zinc metal particles were irregular, elongated flakes. This kind of zinc power may be suitable for use as a friction material for manufacturing brake pad component in the automotive part industry

• Periodical: Advanced Materials Research (Volumes 488-489)
• Pages: 281-285
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.488-489.281
• Online since: March 2012
• Authors: Phairote Sungkhaphaitoon, Thawatchai Plookphol, Sirikul Wisutmethangoon
• Keywords: Atomizing Disc, Centrifugal Atomization, Particle Size Distribution, Zinc Metal Powder

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