METHOD FOR THE RADIOGRAPHIC INSPECTION OF THE WELD OF A TUBE ON A TUBULAR PLATE, AND DEVICE FOR CARRYING OUT SUCH A METHOD

In the method for the radiographic inspection of the bead 4 welding the end of a tube 3 of the tube bundle to the outer face of a tube plate, there is arranged above the welding bead a special radiographic plate protected from the light by washers made of plastic transparent to radioactive radiation...

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Bibliographische Detailangaben
Hauptverfasser:	DELEVAQUE, JEAN-MARC, DELAHAYE, PATRICK
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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Beschreibung
Zusammenfassung:	In the method for the radiographic inspection of the bead 4 welding the end of a tube 3 of the tube bundle to the outer face of a tube plate, there is arranged above the welding bead a special radiographic plate protected from the light by washers made of plastic transparent to radioactive radiation. A lead plate is arranged behind this plate. A radioactive source of a size of the order of a millimetre is introduced along the axis of the tube into an introduction and ejection tube. The radiation from the source is allowed to imprint the films of the plate. The introduction and ejection tube is removed together with the source and the films are developed.