公开(公告)号：DE69400559T2

公开(公告)日：1997-02-06

申请号：DE69400559

申请日：1994-07-04

Applicant: FRAMATOME SA

Inventor： GUILLERMIER PIERRE ,  BLOCQUEL ALAIN

IPC: B23H3/08 ,  G21C17/07 ,  G21C19/02 ,  C25F3/02 ,  C25F3/14 ,  C25F7/00 ,  G21C21/00

Abstract: An electrolyte is circulated between the surface to be machined, charged to an anodic potential, and a working electrode (9') charged to a cathodic potential. The electrolyte contains lithium nitrate as sole active element at a concentration of between 20 g/l and 2350 g/l and preferably between 50 g/l and 250 g/l. The method can be applied to machining the surface of any metallic part and especially to machining the inner surface of tubular parts (5) such as nuclear reactor vessel bottom head or head penetrations; in this case, the electrochemical machine cell consists of a cylindrical working electrode (9') placed inside the part to be machined.

公开(公告)号：DE69213408T2

公开(公告)日：1997-02-06

申请号：DE69213408

申请日：1992-11-26

Applicant: FRAMATOME SA

Inventor： BLOCQUEL ALAIN

IPC: G05B19/402 ,  G05B19/42 ,  G05B19/18 ,  B23Q15/24

Abstract: Method for positioning a tool (10) carried by a manipulation arm or similar support, able to be displaced along three respectively perpendicular directions in space, with respect to a reference axis, especially the longitudinal axis of a tube. … According to the invention, this method consists in arranging, symmetrically on this arm, a set of at least three sources of illumination (17), each supplying a light beam directed tangentially towards the periphery of a tube (5), in retransmitting, by an optical assembly (18) also carried by the arm, the images of three defined points of the tube illuminated by the sources, to a video monitor whose screen (21) includes three reticules (42, 43, 44) delimiting the actual contour of this tube, then in making these images coincide with the reticules so as exactly to centre the axis (28) of the tool on the axis (35) of the said tube. … The invention also relates to a device for implementing this method and its application especially to maintenance on a steam generator tube for a nuclear reactor. … …

公开(公告)号：DE69400559D1

公开(公告)日：1996-10-24

申请号：DE69400559

申请日：1994-07-04

Applicant: FRAMATOME SA

Inventor： GUILLERMIER PIERRE ,  BLOCQUEL ALAIN

IPC: B23H3/08 ,  G21C17/07 ,  G21C19/02 ,  C25F3/02 ,  C25F3/14 ,  C25F7/00 ,  G21C21/00

Abstract: An electrolyte is circulated between the surface to be machined, charged to an anodic potential, and a working electrode (9') charged to a cathodic potential. The electrolyte contains lithium nitrate as sole active element at a concentration of between 20 g/l and 2350 g/l and preferably between 50 g/l and 250 g/l. The method can be applied to machining the surface of any metallic part and especially to machining the inner surface of tubular parts (5) such as nuclear reactor vessel bottom head or head penetrations; in this case, the electrochemical machine cell consists of a cylindrical working electrode (9') placed inside the part to be machined.

公开(公告)号：ES2090553T3

公开(公告)日：1996-10-16

申请号：ES92403194

申请日：1992-11-26

Applicant: FRAMATOME SA

Inventor： BLOCQUEL ALAIN

IPC: G05B19/402 ,  G05B19/42 ,  G05B19/18 ,  B23Q15/24

Abstract: Method for positioning a tool (10) carried by a manipulation arm or similar support, able to be displaced along three respectively perpendicular directions in space, with respect to a reference axis, especially the longitudinal axis of a tube. … According to the invention, this method consists in arranging, symmetrically on this arm, a set of at least three sources of illumination (17), each supplying a light beam directed tangentially towards the periphery of a tube (5), in retransmitting, by an optical assembly (18) also carried by the arm, the images of three defined points of the tube illuminated by the sources, to a video monitor whose screen (21) includes three reticules (42, 43, 44) delimiting the actual contour of this tube, then in making these images coincide with the reticules so as exactly to centre the axis (28) of the tool on the axis (35) of the said tube. … The invention also relates to a device for implementing this method and its application especially to maintenance on a steam generator tube for a nuclear reactor. … …

公开(公告)号：FR2687946B1

公开(公告)日：1994-05-27

申请号：FR9202408

申请日：1992-02-28

Applicant: FRAMATOME SA ,  ELECTRICITE DE FRANCE

Inventor： BLOCQUEL ALAIN ,  IMBERT JEAN ,  GEMMA ANTOINE

IPC: B23H9/00 ,  F22B37/00 ,  B23H1/00

公开(公告)号：ES2011477B3

公开(公告)日：1990-01-16

申请号：ES87400642

申请日：1987-03-23

Applicant: FRAMATOME SA

Inventor： BLOCQUEL ALAIN

IPC: G01B5/08 ,  G21C17/10 ,  G21C17/108

公开(公告)号：FR2756631A1

公开(公告)日：1998-06-05

申请号：FR9614889

申请日：1996-12-04

Applicant: FRAMATOME SA

Inventor： BLOCQUEL ALAIN ,  JACQUIER PAUL

IPC: B23H9/00 ,  G01N1/04 ,  G21C17/017 ,  G21D5/12

Abstract: A cutting head (4) is inserted axially into a cylindrical space such as a tube (2) and locked in place, then electric current and dielectric liquid are supplied to an electro-erosion cutter (5) mounted movably on the head, and the cutter is moved along a closed path to cut out a sample from the tube wall, the sample being retained by and subsequently withdrawn with the head (4). Also claimed is a cutting head carrying a relatively movable electro-erosion cutter with an electric cable and dielectric liquid feed, and means to insert the head into a tube and lock it therein.

公开(公告)号：FR2742255A1

公开(公告)日：1997-06-13

申请号：FR9514572

申请日：1995-12-08

Applicant: FRAMATOME SA

Inventor： BLOCQUEL ALAIN ,  MOREL GILLES ,  CHAMBRIN JEAN LUC

IPC: B23H9/14 ,  G21C19/02 ,  G21C5/02 ,  G21C5/10 ,  G21C17/00

Abstract: The core of a pressurised water nuclear reactor is enclosed by an upright annular sleeve comprising vertical plates (1), with horizontal flat plates (2) bridging the gap between the sleeve and the enclosing pressure vessel. The horizontal flat plates (2) are attached to the vertical plates (1) by screws engaging in blind sockets (6,7) extending through the vertical plates (1) and edgewise into the horizontal plates (2). Each socket is provided with a bleed hole (12) inclined to the screw axis. Also claimed is a device for widening the socket and cutting the bleed hole, comprising two tools which respectively cut axially of the socket and in a direction inclined to the axis.

公开(公告)号：DE69213408D1

公开(公告)日：1996-10-10

申请号：DE69213408

申请日：1992-11-26

Applicant: FRAMATOME SA

Inventor： BLOCQUEL ALAIN

IPC: G05B19/402 ,  G05B19/42 ,  G05B19/18 ,  B23Q15/24

Abstract: Method for positioning a tool (10) carried by a manipulation arm or similar support, able to be displaced along three respectively perpendicular directions in space, with respect to a reference axis, especially the longitudinal axis of a tube. … According to the invention, this method consists in arranging, symmetrically on this arm, a set of at least three sources of illumination (17), each supplying a light beam directed tangentially towards the periphery of a tube (5), in retransmitting, by an optical assembly (18) also carried by the arm, the images of three defined points of the tube illuminated by the sources, to a video monitor whose screen (21) includes three reticules (42, 43, 44) delimiting the actual contour of this tube, then in making these images coincide with the reticules so as exactly to centre the axis (28) of the tool on the axis (35) of the said tube. … The invention also relates to a device for implementing this method and its application especially to maintenance on a steam generator tube for a nuclear reactor. … …

公开(公告)号：FR2684483B1

公开(公告)日：1994-01-14

申请号：FR9114957

申请日：1991-12-03

Applicant: FRAMATOME SA

Inventor： BLOCQUEL ALAIN

IPC: G05B19/42 ,  G05B19/402 ,  G21C17/017 ,  G21D1/02 ,  G21D5/12 ,  B25J19/04

Abstract: Procédé pour le positionnement d'un outil (10) porté par un bras de manipulation ou support analogue, apte à être déplacé selon trois directions de l'espace respectivement perpendiculaires, vis-à-vis d'un axe de référence, notamment l'axe vertical d'un tube porté par une plaque dite à tubes d'un générateur de vapeur pour réacteur nucléaire. Selon l'invention, ce procédé consiste à disposer de façon symétrique sur ce bras un jeu d'au moins trois sources d'éclairement (17), fournissant chacune un faisceau lumineux dirigé tangentiellement vers la périphérie d'un tube (5), à retransmettre par un ensemble optique (18) également porté par le bras, les images de trois points déterminés du tube éclairés par les sources en direction d'un moniteur vidéo dont l'écran (21) comporte trois réticules (42, 43, 44) délimitant le contour réel de ce tube, puis à faire coïncider ces images avec les réticules afin de centrer rigoureusement l'axe (28) de l'outil sur l'axe (35) dudit tube. L'invention concerne également un dispositif pour la mise en œuvre de ce procédé.