英和和英

出典:『Wikipedia』 (2011/02/09 00:14 UTC 版)

英語による解説

引用

A Wiley Mill is a laboratory-scale machine for grinding materials to a powder and belongs to the family of cutting mills. The term "Wiley" refers to a specific group of grinding mills manufactured by Thomas Scientific and is their registered trademark. These mills prepare materials for analysis with minimal moisture loss. Well-dried samples are preferred. In the grinding mill, the material is loaded cut into crude pieces or lumps and loaded into a hopper. From the hopper, the material drops by gravity into the path of a set of revolving hard tool steel blades driven by an electric motor. The revolving knives work against stationary knives and the resulting powder is forced through a steel screen. The powdered material then drops into a waiting collection vessel underneath.