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    STP1023

    Automatic System for Measuring the Zirconium Liner and Zircaloy-2 Thickness of Zirconium Liner Tubes

    Published: 01 January 1989


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    Abstract

    An automatic system to measure the zirconium liner thickness and Zircaloy-2 thickness of Zircaloy tubes with a zirconium liner for nuclear reactors has been developed. This system uses an electromagnetic probe connected to a data processing unit for measuring the liner thickness, an ultrasonic inspection system for measuring the wall-thickness, and a computer for calculating the Zircaloy-2 thickness from the liner thickness and wall-thickness. Fully automatic measurements on zirconium liner thickness and Zircaloy-2 thickness are performed with high accuracy to an order of 2μm. This newly developed system is very useful in assuring the liner layer and Zircaloy-2 thickness in the production of high-quality cladding tubes.

    Keywords:

    nuclear fuel cladding, zirconium, Zircaloy, liner thickness, eddy current


    Author Information:

    Honji, M
    Manager and engineers, Steel Tube Works, Sumitomo, Metal Industries, Ltd., Amagasaki,

    Sakamoto, T
    Assistant manager, Sumitomo Metal Industries, Ltd., Amagasaki,

    Morimoto, Y
    Manager and engineers, Steel Tube Works, Sumitomo, Metal Industries, Ltd., Amagasaki,

    Hyodo, S
    Manager and engineers, Steel Tube Works, Sumitomo, Metal Industries, Ltd., Amagasaki,


    Committee/Subcommittee: B10.02

    DOI: 10.1520/STP18877S