Cause and effects of tension in a draw-controlled web process line
Abstract
There is a common belief, supported by several technical papers and bulletins, that the tension in a web increases with velocity by the addition of the term mV^2 to the tension in a stationary web. This concept of a tension which increases with velocity is assumed to be a partial explanation of the increasing breakage of webs at higher velocities. Certain effects of tension, such as the angle of release of a web which has been nipped to a roller and the depth of the catenary of a horizontal span, have been mistakenly believed to cause tension. This paper shows that the web tension is not affected by the web velocity, if the tension is controlled by strain (draw ratio) as in a papermaking machine, nor is a catenary or other cause of a steady deviation in the path of the web the source of tension.
Citation
Shelton, J. J. (1991, May). Cause and effects of tension in a draw-controlled web process line. Paper presented at the First International Conference on Web Handling (IWEB), Stillwater, OK.