4 Bittersweet Dr, Cochranville, PA 19330 • (610)8697475
Morgantown, PA
West Chester, PA
Wescosville, PA
Erie, PA
Bath, PA
Monroeville, PA
Middletown, PA
Isbn (Books And Publications)
Saemtliche Schriften - Lateinische Schriften II Bd. 2: Libellus de Executione Aeternae Praedestinationis - Ein Buechlein von der Entlichen Volziehung Ewiger Fuersehung
Arcade J. Plante - Center Valley PA Richard F. Wetzel - Bath PA
Assignee:
Bethlehem Steel Corporation - Bethlehem PA
International Classification:
G01N 2782 G01N 2904
US Classification:
364507
Abstract:
A computer-based eddy current nondestructive or ultrasonic testing system automatically inspects rolling mill roll surface defects during roll grinding operations comprising articulated probe means, eddy current, or ultrasonic, test instrument means, computer means, display and printer means. The articulated probe mechanism is mounted on a traversing roll grinder carriage, is automatically positioned over the test roll in response to control means initiated by the grinder operator, and has a probe head with a controlled fluid bearing, air or liquid, to automatically maintain probe-head-to-test roll gap. One or multiple eddy current, or ultrasonic, probes in the test head generate anamoly test signals, which, together with a probe head temperature sensor signal, are processed in a modified test instrument and the computer. Computer plots defects signals as color bars vs. probe position and displays these bars graphically and other messages on a color CRT display and/or a graph printer.