Method and apparatus for examining weld defects in vertical pipe

Details Method and apparatus for examining weld defects in vertical pipe Method and apparatus for examining weld defects in vertical pipe

1976-12-07

1978-06-27

Gill, James J.

Measuring and testing

Vibration

By mechanical waves

73623, G01N 2904

Patent

active

040967573

ABSTRACT:
An ultrasonic defect detection apparatus comprising a supersonic probe, a rotary shaft for revolving the probe along the inner surface of a pipe to be examined, and a hollow shaft removably connected to the rotary shaft for vertically moving the probe. Water acting as a contact medium is circulated between the operating surface of the probe and a water tank through the rotary shaft and the hollow shaft. The apparatus is inserted into a pipe to be examined such as the control rod housing of an atomic reactor through the bottom opening of the pipe, and can be operated from a remote place for the sake of safety.

REFERENCES:
patent: 3002375 (1961-10-01), Moffatt et al.
patent: 3960006 (1976-06-01), Smith

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