Air entrapment and residual stresses in rolls wound with a rider roll
Abstract
Air is entrained during the process of winding webs. Rider rolls are often employed in an effort to reduce the amount of air which enters the wound roll. This paper presents the results of an experiment which allows the entrained air to be measured. With knowledge of the levels of entrapped air an algorithm was chosen to predict the amount of entrained air for various operating conditions. Finally the air entrapment algorithm was incorporated into a wound roll model such that the effect of the entrained air on the residual pressures within the wound roll could be studied.
Citation
Good, J. K., & Covell, S. M. (1995, June). Air entrapment and residual stresses in rolls wound with a rider roll. Paper presented at the Third International Conference on Web Handling (IWEB), Stillwater, OK.