Automatic valve seat build-up welding apparatus

Details Automatic valve seat build-up welding apparatus Automatic valve seat build-up welding apparatus

1982-12-21

1985-07-23

Shaw, C. C.

Electric heating

Metal heating

Of cylinders

219 7614, 2191251, 219123, 21913741, B23K 9225

Patent

active

045310394

ABSTRACT:
An automatic valve seat build-up welding apparatus for a Y-type main steam isolation globe valve used in an atomic power station is disclosed which is characterized in that the valve seat can be build-up welded on the spot by the welding torch introduced into the valve box with the welding operation being carried out remotely from the spot and viewed by an image sensor positioned near the welding torch so that the exposure of an operator to a radioactive environment is prevented.

REFERENCES:
patent: 3009049 (1961-11-01), Stanley
patent: 3254192 (1966-05-01), Braucht
patent: 3825712 (1974-07-01), Gibbs
patent: 4144992 (1979-03-01), Omae et al.

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