Method and apparatus for surface treating and prestressing the inside wall of a cavity

The present invention relates to a method and apparatus for surface treating and putting under compression prestress the inside wall of a cavity, in particular a cylindrical cavity of circular section. The apparatus comprises a bulb-shaped vibrator provided with a tubular portion designed to be enga...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	COULON, ANDRE
Format:	Patent
Sprache:	eng
Schlagworte:	ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL BLASTING CHEMISTRY ENGINE PLANTS IN GENERAL GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GRINDING HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PERFORMING OPERATIONS POLISHING STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS TRANSPORTING WEAPONS
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