Apparatus for pickling the inner wall of tubular material

Details Apparatus for pickling the inner wall of tubular material Apparatus for pickling the inner wall of tubular material

1981-10-01

1983-08-16

Bleutge, Robert L.

Cleaning and liquid contact with solids

Apparatus

Automatic controls

134170, B08B 302

Patent

active

043985521

ABSTRACT:
An apparatus for pickling the inner wall of a tubular member, for example, a zirconium or zircaloy tubular member as a cladding tube for nuclear fuel. The apparatus features the use of ultrasonic instruments for measuring the inner diameter of the tubular member while pickling the inner wall of the same. Owing to the interlocked association of the instruments and mechanism for supplying a pickling liquid into the tubular member, the supply of the pickling liquid can be stopped as soon as the inner diameter has reached a predetermined value. Various mechanisms may also be incorporated in the apparatus to minimize the temperature variation along the length of the tubular member and to improve the accuracy of the measurement by the instruments.

REFERENCES:
patent: 2714079 (1955-07-01), Stodgell
patent: 3937448 (1976-02-01), Fujii et al.
patent: 4163454 (1979-08-01), Shigeta

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