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Now showing items 51-60 of 429
Guidelines for allowable in-plane roller misalignment using wrinkling and web break models
(Oklahoma State University, 2013-06)
While we have had wrinkling and web break models for a quarter century and the means for precision roller alignment for a half century, no consistent recommendations have been made as to allowable tolerances for roller ...
Gauge optimization of the reference tension in winding systems using wound internal stresses calculation
(Oklahoma State University, 2007-06)
In winding process, the quality of the roll is directly connected to its stress state. The winding tension is the most significant parameter which plays an important role in the stresses generated within a roll, during ...
Linear edge sensor
(Oklahoma State University, 1999-06)
In modern industrial process controls, web guiding is becoming very demanding due to variations in web materials, variable web widths, and the need for better guiding accuracy. Selecting the appropriate sensor for various ...
Wrinkle initiation and development in heated webs on drums
(Oklahoma State University, 2013-06)
Wrinkles often occur in webs heated on drums and rollers. Anecdotal evidence from vacuum metalizers suggests that wrinkles are initiated by small grit particles or surface imperfections that lift the web off the drum. An ...
Recent advances in web longitudinal control
(Oklahoma State University, 2005-06)
Stable web transport through processing machinery is critical in the web processing industry. Demands for improved performance under a wide variety of dynamic conditions and web materials are placing additional emphasis ...
Stick-slip behavior of paper during friction testing
(Oklahoma State University, 1995-06)
Paper often exhibits oscillatory stick-slip motion during friction testing using a horizontal sled apparatus. The motion consists of a constant-amplitude oscillation in the force required to move the sled, which may ...
Computer simulation of web dynamics
(Oklahoma State University, 1991-05)
Explicit finite difference schemes for modeling one-dimensional, transient web dynamics are designed, developed and tested. A sequence of numerical experiments are performed to ascertain the effects of various parameters ...
Roll variability analysis for non-statisticians
(Oklahoma State University, 2019-06)
Roll variability can be characterized by several different methods. Off line cross-direction (CD) scans of thickness or coat weight give a snapshot of CD variation over a small machine-direction (MD) range. Roll hardness ...
Improvement of web spacing characteristics by two types of guide rollers
(Oklahoma State University, 1999-06)
In the manufacturing fields of plastic sheet, paper, magnetic tape, thin metal plate, photographic film etc., the web transporting systems supported by guide rollers are often used. In such systems, it is of cardinal ...
Advanced surface design of polyester films and its application to magnetic recording media
(Oklahoma State University, 1997-06)
This paper briefly overviews the recent surface design for the purpose of achieving the good wind ability of polyester films and its application to the substrate films for the magnetic recording media.