公开(公告)号：FR2846466A1

公开(公告)日：2004-04-30

申请号：FR9813023

申请日：1998-10-16

Applicant: FRAMATOME SA

Inventor： FERLAY JEAN CLAUDE ,  GUGLIELMO ANDRE ,  GRYPCZYNSKI DANIEL ,  LADOUCEUR BRUNO ,  MOREL GILLES ,  PARIZE CHRISTOPHE

IPC: G21C19/20 ,  G21C19/32 ,  G21C19/00 ,  G21C19/26

Abstract: The process, for use on a pressurized water reactor (PWR) that is shut down and cool, comprises raising the core top plate (4a) with lifting and handling equipment in a pond above the core vessel (1). When a fuel assembly remains attached to the top plate, a fuel assembly holder (22) is lowered into a position where it holds the fuel assembly onto the top plate while it is transferred to a receiver (15) within the pond. The holder is then released, and the fuel assembly is deposited in the receiver, if necessary after cutting its centering pin.

公开(公告)号：FR2846466B1

公开(公告)日：2005-02-04

申请号：FR9813023

申请日：1998-10-16

Applicant: FRAMATOME SA

Inventor： FERLAY JEAN CLAUDE ,  GUGLIELMO ANDRE ,  GRYPCZYNSKI DANIEL ,  LADOUCEUR BRUNO ,  MOREL GILLES ,  PARIZE CHRISTOPHE

IPC: G21C19/20 ,  G21C19/32 ,  G21C19/00 ,  G21C19/26

公开(公告)号：FR2768514B1

公开(公告)日：1999-12-03

申请号：FR9711503

申请日：1997-09-16

Applicant: FRAMATOME SA

Inventor： CHAPUT PHILIPPE ,  PARIZE CHRISTOPHE

IPC: G01B11/24 ,  G21C17/003 ,  G01N21/88 ,  G21C13/02 ,  G21C17/007 ,  G21C17/013

公开(公告)号：FR2799523B1

公开(公告)日：2001-12-21

申请号：FR9912582

申请日：1999-10-08

Applicant: FRAMATOME SA

Inventor： LATREILLE PASCAL ,  PELLEGRIN BERNARD ,  REMOND ETIENNE ,  PARIZE CHRISTOPHE

IPC: B23P6/00 ,  F16K43/00 ,  F16K17/02 ,  F22B37/44

公开(公告)号：FR2799523A1

公开(公告)日：2001-04-13

申请号：FR9912582

申请日：1999-10-08

Applicant: FRAMATOME SA

Inventor： LATREILLE PASCAL ,  PELLEGRIN BERNARD ,  REMOND ETIENNE ,  PARIZE CHRISTOPHE

IPC: B23P6/00 ,  F16K43/00 ,  F16K17/02 ,  F22B37/44

Abstract: The process comprises dismantling the part of the valve containing the shut-off element (8) and control mechanism (9) from the seat (4), and building up the worn seat ring (10) by plasma transfer arc (PTA) welding of a pre-alloyed metal powder, and then machining the metal deposit. The process, for use on a valve (3) in a fluid pipe (2), comprises dismantling the part of the valve containing the shut-off element (8) and control mechanism (9) from the seat (4), and building up the worn seat ring (10) by plasma transfer arc (PTA) welding of a pre-alloyed metal powder, and then machining the metal deposit. The build-up weld is made after machining away part of the worn seat ring and fitting weld supports round the valve seat to receive the new metal deposit, e.g. of Stellite, using a tungsten electrode and an inert gas.

公开(公告)号：FR2768514A1

公开(公告)日：1999-03-19

申请号：FR9711503

申请日：1997-09-16

Applicant: FRAMATOME SA

Inventor： CHAPUT PHILIPPE ,  PARIZE CHRISTOPHE

IPC: G01B11/24 ,  G21C17/003 ,  G01N21/88 ,  G21C13/02 ,  G21C17/007 ,  G21C17/013

Abstract: Tapped holes machined in the flange of a reactor vessel are optically controlled using a video camera and a flat laser beam parallel to the axis of the hole and inclined with respect to the optical axis of the camera.- DETAILED DESCRIPTION - The camera carried on a turret and the laser beam are rotated about the axis of the tapped hole so that an image of the surface is provided on which the meridian profile of the tapping appears generated by the intersection of the flat laser beam and the threads. The camera and the source of the beam are moved automatically around the circumference of the flange so they are inserted in each of the holes on a trolley moving on the upper surface of the flange