Aerosol Filtration Application Using Fibrous Media—An Industrial Perspective

Filtration of aerosol particles using non-woven fibrous media is a common practice for air cleaning. It has found wide applications in industries and our daily lives. This paper overviews some of these applications and provides an industrial perspective. It starts from discussing aerosol filtration theory, followed by a brief review on the advancement of filtration media. After that, filtration applications in respiratory protection, dust collection, and engine in-take air cleaning are elaborated. These are the areas that the author sees as the typical needed ones in China's fast pace economical development endeavor, where air filtration enables the protection of human health, environment and equipment for sustainability.

粉末冶金一级传动带轮的研制

针对一级传动带轮的结构特征及使用工况时的性能要求,将一级传动带轮分成两个零件,优化模具结构,分别模压成形,利用材料的不同涨缩比,将两个零件组合烧结成一个整体,经热处理及适当加工后制成成品。

粉末冶金偏心大齿轮的研制

针对偏心大齿轮的结构特征及使用工况,计算齿轮强度参数,确定用三维软件模拟模具配合状态,优化模具设计参数,通过金相分析选用适当的原材料、烧结及热处理工艺,经适当的后加工制成成品。