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Standard Practice for Ultrasonic Examination of Turbine-Generator Steel Retaining Rings
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NORM herausgegeben am 1.5.2024
Bezeichnung normen: ASTM A531/A531M-24
Ausgabedatum normen: 1.5.2024
SKU: NS-1181665
Zahl der Seiten: 6
Gewicht ca.: 18 g (0.04 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
This test method covers the procedures for the standard practice of performing ultrasonic shear and longitudinal wave examinations on turbine-generator steel retaining rings. A pulsed reflection-type ultrasonic instrument shall be used for the tests. Scanning of steel specimens may be performed by either the contact (stationary) or immersion (rotating) methods, both of which may be executed in either the axial or circumferential directions. Tests shall be performed after specimens have gone through final processing and heat treatment for properties, and the circumferential and axial faces machined flat and parallel to one another. Also prior to testing, surface examinations shall be made for surface roughness and tears, loose scales, machining or grinding particles, paint, and other foreign and extraneous matter. Suitable couplant liquids, capable of conducting ultrasonic vibrations, shall be used to couple the transducer to test surfaces.
Keywords:
angle beam examination, back-reflection, contact method, generator, immersion method, longitudinal wave testing, nondestructive testing, reference-block, reference-notch, retaining rings, shear wave testing, steel forgings-alloy, turbine, ultrasonic apparatus, ultrasonic couplants, ultrasonic examination,, ICS Number Code 21.060.60 (Rings, bushes, sleeves, collars)
Letzte Aktualisierung: 2024-07-29 (Zahl der Positionen: 2 339 192)
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