WIT Press


Cathode Ray Tube With Improved Yoke Clamp

Price

Free (open access)

Paper DOI

10.2495/BE960331

Volume

14

Pages

11

Published

1996

Size

743 kb

Author(s)

C.Y. Cha, S.V. Iyer & J. Trevelyan

Abstract

Cathode ray tubes (CRT) for color televisions are being manufactured in larger sizes than ever before, from 27V up to 40V ("V" conventionally indicating the diagonal dimension of the screen in inches). Such large size tubes present special problems for the manufacturer. Notable among these problems are those glass envelope of the CRT during the manufacturing. The neck failure during the process of yoke clamping has been analyzed using the Boundary Element Method (BEM), for reasons of both the ease and speed of use and also because of the method's ability to predict sharp stress concentrations with accuracy. The neck of the CRT (the narrow part of the glass envelope most distant from the front panel) has stress develop on both the inner surface and the outer surface. These stress

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