| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.16 ( June 1987 ) ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Ultrasonic Immersion Testing System Takaharu Ogata, Koichi Kawamura, Hideo Maruyama, Takuichi Imanaka, Yoshio Uno, Shoji Ando |
| Synopsis: The immersion type ultrasonic scanning flaw detection system, developed and manufactured by Kawasaki Steel Corp. and Kawatetsu Instruments Co., Ltd., features the use of a high-sensitivity flaw detector, precision six-axis scanning mechanism and sophisticated data processing by microcomputer. For the data processing, the system was started with a conventional two-dimensional map recording of flaws, and has now grown into sophisticated computer graphic processing, including B-scope recording, computation and recording of the flaw ratio to the total area and three-dimensional display of flaws. This paper discusses some examples of its application, including: (1) substitution of a microscope for visual examination in the hydrogen induced cracking test; (2) prediction of susceptibility to disbonding of stainless steel overlay welds; (3) a new approach to detection of non-metallic micro-inclusions in ultra-thin steel strips; and (3) attempts to use this system for testing new composite materials such as honeycomb materials. |
| TextiPDF: 11p./696kbj |