Activists have long warned that the Boeing Company's use of filtered
samples produced artificially low radiation readings because they were only catching contaminants that made it through a microscopic filter.
The discs are mounted on a central rotating shaft and submerged in fine fluid to be filtered
Since the effectiveness of filters varies based on airflow, the size of the room and of the particles to be filtered
, and how quickly the filtering mechanism needs to be replaced, compare filter efficiencies before investing.
When implementing the filters at Twin City Die Casting, the differences between the used oil that was filtered
and the oil that was unfiltered were noticeably different, even to the naked eye (figure 1).
Standard fabric filter bags are arranged in a dust collection system (or baghouse) where exhaust air is filtered
before venting out of the stack to the atmosphere.
So, if foam filters reduce defect rates so effectively, why aren't all aluminum castings filtered
Depending upon the casting buyer's specifications and cost considerations, the optimum filtered
gating design may be the one that produces the best quality steel casting (fewest inclusions), or it may be the one that produces the host yield.