WHAT WE KNOW THAT JUST ISN'T SO

摘要

This paper proposes a metric for the permeation of the science of web handling into industry. The variable of interest is misunderstandings, myths if you will, that are common in plants. The origin of the myths is unimportant and often undeterminable. What is important is whether the old plant conventional wisdom has been replaced by the new science of web handling. Perhaps the most common myth is that spiral taping or grooving of rollers spreads the web. However, there are many other misconceptions in the areas of tracking, tension control and winding that are least as limiting. This paper lists these myths, their possible arena of application, the dangers of assuming validity in applications where they are not correct and references for our current best understanding.