摘要:
A method of ultrasonically testing the disk bore and keyway area of a shrunk-on steam turbine rotor disk or hub is provided. The method employs a one or more scanning ultrasonic phased linear array probes mounted on the disk to inspect the disk bore and keyway area on the opposite side of the disk.
摘要:
A concealed fixing device comprises an insert embedded within a first member, an elongate threaded bar connected to the first member and passing through a second member through a concealed hole to a concealed chamber within the second member. A combined nut and washer assembly applied to the threaded bar tightens the first and second members.