No abstract available

No abstract available

[en] Efforts are being exerted for the development of more reliable nuclear power plants. This paper describes the present status of such development activities in Japan, especially to enhance reliability of non-destructive flaw detection and to improve component integrity through the cooperative efforts of experts in materials, structural design, fracture mechanics, fabrication and non-destructive examination. (orig./GSCH)

No abstract available

[en] In general, the upgrading of requirements for the most different fields of engineering is also characterized by a corresponding effort in testing. In this context especially nondestructive tests of materials are of outstanding importance. In the fields of power plant construction (among others, components for nuclear power plants) as well as petrochemical and chemical industry considered here, almost all nondestructive test methods are applied. This paper discusses not so much theoretical testing problems, but rather test objects as well as specifications and testing equipment. (orig./HP)

No abstract available

[en] This invention concerns a tube transfer device that enables tubes to be successively ejected one by one from a bundle of identical tubes. Its principal application applies to the transfer of cylindrical cladding (containing nuclear fuel), wich must, for example, be automatically transferred to a welding control device for examining plugs located at its ends

No abstract available

[en] Methods for inspecting nuclear fuels by neutron radiography are reviewed briefly, and some facilities around the world for these inspections are described. Some of the qualitative and quantitative information obtained from neutron radiographic inspection of unirradiated fuels is discussed, followed by a review of inspections on irradiated reactor fuels. These are separated into inspections on thermal and fast reactor fuels irradiated under normal reactor conditions, and on those tested under transient (simulated accident) conditions. Lastly, some possible future developments are noted for what is clearly a mature technique for inspecting nuclear fuels non-destructively. (author)

[en] A summary is given of the more important developments of the past 1-3 years, which had an impact on steam generator NDE. Industrial research efforts directed at responding to the developments, and at achieving improvements in inspection technology are described. (UK)