公开(公告)号：FR2667531B1

公开(公告)日：1993-01-22

申请号：FR9012363

申请日：1990-10-08

Applicant: FRAMATOME SA

Inventor： PAUL DWORACZEK JEAN ,  DANIEL GRYPCZYNSKI

IPC: B23G9/00 ,  B23P6/00 ,  B25B27/14 ,  B25B27/28

Abstract: In order to repair the tapping (2b) of a tapped opening (2) of large diameter, a threaded insert is introduced by screwing into the tapped opening. The threaded insert is introduced into the tapped opening (2) wound on a threaded section of the surface of a drum which is screwed inside a tapped centring ring engaged in the entrance section (2a) of the tapped opening (2). The threaded insert is placed firmly against the tapping (2b) and the threaded insert is fixed firmly in place by fitting a pin traversing the threaded insert and engaged in the wall of the tapped opening (2). The invention also relates to tools allowing the use of the method according to the invention. The method according to the invention applies in particular to the repair of tappings in openings (2) machined in the tank flange (1) of a pressurized water nuclear reactor and allowing the sealed fixing of the tank cover by means of studs. … …

公开(公告)号：ZA902513B

公开(公告)日：1991-11-27

申请号：ZA902513

申请日：1990-04-02

Applicant: FRAMATOME SA

Inventor： GRYPCZYNSKI DANIEL ,  DANIEL GRYPCZYNSKI ,  JACQUIER PAUL ,  PAUL JACQUIER ,  GUGLIELMO ANDRE ,  ANDRE GUGLIELMO

IPC: B23P19/04 ,  B23H9/00 ,  B23P19/02 ,  B23P21/00 ,  F22B37/00 ,  F22B37/02 ,  F28F11/02 ,  B23P ,  F22B ,  B23H ,  B25B

Abstract: The body (4) of the plug (3) is rebored in the direction of its end wall (6) and the clamp block (7) is drilled by an electric machining process, over a substantial part of the length of the plug. The wall of the plug body (4) is relieved of stress with the aid of a welding torch introduced into the bore made by electric machining, and a gripping tool is introduced into the bore in order to extract from the tube the plug body (4) which has been relieved of stress.

公开(公告)号：ZA9002514B

公开(公告)日：1991-11-27

申请号：ZA9002514

申请日：1990-04-02

Applicant: FRAMATOME SA

Inventor： GRYPCZYNSKI DANIEL ,  DANIEL GRYPCZYNSKI ,  JACQUIER PAUL ,  PAUL JACQUIER ,  GUGLIELMO ANDRE ,  ANDRE GUGLIELMO

IPC: G21C17/003 ,  B23Q9/02 ,  B25J9/02 ,  F22B37/00 ,  F22B

CPC classification number: F22B37/005

公开(公告)号：ZA9002513B

公开(公告)日：1991-11-27

申请号：ZA9002513

申请日：1990-04-02

Applicant: FRAMATOME SA

Inventor： GRYPCZYNSKI DANIEL ,  DANIEL GRYPCZYNSKI ,  JACQUIER PAUL ,  PAUL JACQUIER ,  GUGLIELMO ANDRE ,  ANDRE GUGLIELMO

IPC: B23P19/04 ,  B23H9/00 ,  B23P19/02 ,  B23P21/00 ,  F22B37/00 ,  F22B37/02 ,  F28F11/02 ,  B23P ,  B23H ,  B25B ,  F22B

CPC classification number: F22B37/003 ,  B23H9/00 ,  B23P19/025 ,  F28F11/02

公开(公告)号：FR2667531A1

公开(公告)日：1992-04-10

申请号：FR9012363

申请日：1990-10-08

Applicant: FRAMATOME SA

Inventor： PAUL DWORACZEK JEAN ,  DANIEL GRYPCZYNSKI

IPC: B23G9/00 ,  B23P6/00 ,  B25B27/14

Abstract: In order to repair the tapping (2b) of a tapped opening (2) of large diameter, a threaded insert is introduced by screwing into the tapped opening. The threaded insert is introduced into the tapped opening (2) wound on a threaded section of the surface of a drum which is screwed inside a tapped centring ring engaged in the entrance section (2a) of the tapped opening (2). The threaded insert is placed firmly against the tapping (2b) and the threaded insert is fixed firmly in place by fitting a pin traversing the threaded insert and engaged in the wall of the tapped opening (2). The invention also relates to tools allowing the use of the method according to the invention. The method according to the invention applies in particular to the repair of tappings in openings (2) machined in the tank flange (1) of a pressurized water nuclear reactor and allowing the sealed fixing of the tank cover by means of studs. … …

公开(公告)号：ZA902514B

公开(公告)日：1991-11-27

申请号：ZA902514

申请日：1990-04-02

Applicant: FRAMATOME SA

Inventor： GRYPCZYNSKI DANIEL ,  DANIEL GRYPCZYNSKI ,  JACQUIER PAUL ,  PAUL JACQUIER ,  GUGLIELMO ANDRE ,  ANDRE GUGLIELMO

IPC: G21C17/003 ,  B23Q9/02 ,  B25J9/02 ,  F22B37/00 ,  F22B

Abstract: The centring apparatus comprises a centring plate (23) mounted rotatably on a support element (21) about an axis parallel to the axis of the steam generator tubes, supporting two radial-expansion fixing grippers (39) and a means (22, 27, 28) for motorised orientation of the plate (23) about its axis, the fixing grippers (39) being positioned on the plate in relative positions corresponding to openings for passage of the tubes (13) through the tubular plate (18). … …