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Now showing items 21-30 of 34
Adaptive, self-underpressurizing suction roll for fast web handling concepts
(Oklahoma State University, 2005-06)
In web handling one of the most demanding area is nip or pocket area for incoming or outgoing web. Depending on speed of web and rotating roll surfaces, boundary layers transport air causing negative or positive relative ...
Widthwise variations in web properties and wound roll structure
(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 ...
Web lateral dynamics with buckling in sheet metal rolling
(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 ...
Challenges and opportunities in flat panel industry
(Oklahoma State University, 2005-06)
The Flexible Panel Display (FPD) business is rapidly growing in Asia. Many industrial companies not only from traditional coating industries but from others such as electronics, printing, and film manufacturing industries, ...
Theoretical modeling of traction characteristics between paper-web and steel-roller based on the contact mechanics
(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 ...
Wound-in-tension in a non-woven web
(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, ...
Effects of concave rollers, curved-axis rollers and web camber on the deformation and translation of a moving web
(Oklahoma State University, 2005-06)
A new method of analysis is applied to three problems that have resisted detailed solution. These are:
Twenty major developments in seven years - Thinking outside the box at the Beloit Downingtown Research Lab
(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 ...
Winding of interleaved materials
(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 ...
Tension control in thin film production lines
(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 ...