Now showing items 21-34 of 34

    • Roll design effect on nip pressure 

      Simbierowicz, G.; Vanninen, R. (Oklahoma State University, 2005-06)
      The quality of reeling process is a key factor in achieving production efficiency, especially when machine speed and paper width continue to increase. For calendered and coated grades of paper the main problems are the ...
    • Shear slitting of aluminum webs 

      Ma, J.; Lu, H.; Li, M. (Oklahoma State University, 2005-06)
      Shear slitting of aluminum webs using both disk knives and block knives were investigated using a laboratory slitter. The effects of the clearance, overlap, blade overdrive, and cant angle on burr height were studied on ...
    • Tension allocation in three dimensional wound roll 

      Hoffecker, P.; Good, J. K. (Oklahoma State University, 2005-06)
      Much consideration has been given to the relationship between web line tension and the stresses they induce in three dimensional wound rolls. Three dimensional wound rolls are distinctive because their radial and circumferential ...
    • Tension control in thin film production lines 

      Oedl, G. (Oklahoma State University, 2005-06)
      A comparison of speed and tension control in pull roll stand at film production lines is given. One typical error (periodic error) of standard gear box drives is analyzed and discussed. The design of a active tension control ...
    • Theoretical modeling of traction characteristics between paper-web and steel-roller based on the contact mechanics 

      Hashimoto, H. (Oklahoma State University, 2005-06)
      This report describes the theoretical modeling of friction coefficient between uncoated paper web (newsprint; for example) and steel roller. In the modeling, the paper base is approximated by the linear spring and surface ...
    • Twenty major developments in seven years - Thinking outside the box at the Beloit Downingtown Research Lab 

      Pfeiffer, J. D.; Lucas, R. G. (Oklahoma State University, 2005-06)
      The Bi-Wind and the Rho-Meter hardness tester are two well-known achievements of the Beloit Corporation's Downingtown Research Lab and there were many more in the period 1964 to 1971. A small group of researchers, building ...
    • Web handling for flexible display manufacture 

      Walton, R. L. (Oklahoma State University, 2005-06)
      Flexible displays manufactured in a continuous roll-to-roll fashion are the "Holy Grail" of the display industry. This paper offers an assessment of the development efforts related to web handling, which are required to ...
    • Web lateral dynamics with buckling in sheet metal rolling 

      Tarnopolskaya, T.; Yuen, W. Y. D.; Gates, D.; deHoog, F. R. (Oklahoma State University, 2005-06)
      The stability of web lateral motion is of importance in many engineering applications where the deviation of the web from the processing direction is highly undesirable and can cause various defects. This is especially ...
    • Widthwise variations in web properties and wound roll structure 

      Olsen, J. E. (Oklahoma State University, 2005-06)
      Widthwise variations in web properties affect wound roll structure. Cole & Hakiel published a two-dimensional model in 1992 which took widthwise variations in web thickness into account. Based on this publication a model ...
    • Winding of interleaved materials 

      Lei, H.; Cole, K. A. (Oklahoma State University, 2005-06)
      The manufacturing of flexible display products has very tight specifications on the dimensional changes between the coating stations or between different passes of a multi-pass coating process. Web stretching and stress ...
    • Wound roll generated unstable vibration on a two-drum winder 

      Jorkama, M.; von Hertzen, R. (Oklahoma State University, 2005-06)
      Nip contact between the paper roll, winding drum and rider roll or some other nip roller may cause that the wound roll is deformed into a convex polygon. This deformation process is accompanied with a strong vibration. The ...
    • Wound-in-tension in a non-woven web 

      Balaji, K. K.; Good, J. K. (Oklahoma State University, 2005-06)
      Literature on wound roll structure of non-homogeneous webs is scarce. Experimental and analytical research on wound roll structure of homogeneous materials such as plastic films and paper has been reported extensively, ...
    • Wrinkle-free conveyance in nips 

      Rice, B. S. (Oklahoma State University, 2005-06)
      Wrinkling in nips with ultra-thin webs is empirically studied. In web converting, nips are used for tension isolation drives, gravure coaters, prevention of air entrainment on rollers and winding rolls, calendaring, ...
    • Wrinkling of webs on rollers and drums 

      Jones, D. P.; McCann, M. J. (Oklahoma State University, 2005-06)
      Wrinkles are frequently observed in thin webs wrapping rollers, winding cores, and drums in vacuum coaters. They are the buckling response of the web to compressive deformation in the transverse direction (TD), which may ...