APPARATUS FOR MAKING CIRCULAR BORDER AROUND AN APERTURE IN A CYLINDRICAL BODY WALL

    公开(公告)号:CZ285565B6

    公开(公告)日:1999-09-15

    申请号:CS58391

    申请日:1991-03-06

    Applicant: FRAMATOME SA

    Inventor: FOURNIER YVES

    Abstract: After having machined a spot facing (4), the bottom of this spot facing is pushed back by means of rollers (31) driven in an orbital movement, the angle which the attack surface of the rollers forms with the axis (Y-Y) of the opening (2) being progressively reduced in step with the advance of the roller carrier (28). … Application to the formation of connection lips around openings of a vessel shell ring (course) of a nuclear reactor. … …

    2.
    发明专利
    未知

    公开(公告)号:FR2742368A1

    公开(公告)日:1997-06-20

    申请号:FR9514990

    申请日:1995-12-18

    Applicant: FRAMATOME SA

    Abstract: An end portion of each of two parts (10, 11) is machined and the machined end portions of the parts (10, 11) are arranged in facing positions to form a welding bevel (13) extending in a longitudinal direction between the parts (10, 11), whereafter a filler metal is deposited into the welding bevel (13). The welding bevel is a narrow bevel with side walls at an aperture angle of no more than 5 DEG relative to the longitudinal central plane of the bevel (13). A nickel alloy comprising 18-32 % of chromium is deposited into the welding bevel. The method is particularly suitable for joining a pressurised water nuclear reactor vessel tubing and an austenitic stainless steel primary circuit pipe.

    METHOD AND DEVICE FOR CIRCULAR BORDER FORMING ROUND THE HOLE

    公开(公告)号:CS9100583A3

    公开(公告)日:1991-10-15

    申请号:CS58391

    申请日:1991-03-06

    Applicant: FRAMATOME SA

    Inventor: FOURNIER YVES

    Abstract: After having machined a spot facing (4), the bottom of this spot facing is pushed back by means of rollers (31) driven in an orbital movement, the angle which the attack surface of the rollers forms with the axis (Y-Y) of the opening (2) being progressively reduced in step with the advance of the roller carrier (28). … Application to the formation of connection lips around openings of a vessel shell ring (course) of a nuclear reactor. … …

    PROCESS AND DEVICE FOR COMPRESSING BY HAMMERING A TUBE OF A STEAM GENERATOR SET IN A TUBE PLATE

    公开(公告)号:CA1248859A

    公开(公告)日:1989-01-17

    申请号:CA494599

    申请日:1985-11-05

    Applicant: FRAMATOME SA

    Abstract: For the purpose of compressing by hammering a steam generator tube, there is directed a stream of gas at high velocity charged with particles having a particle size of between 50 and 500.10-6 m, onto the inner surface of the tube. The jet of gas is directed onto the inner surface of the tube in radial directions and onto the whole of the periphery of the tube. The flow of the mass of the particles is higher than 0.008 kg/sec for tubes having an inside diameter of around 0.020 m. The device comprises a flexible sheath movable inside a case fixed in a sealed manner under the tube plate around the tube. An injection nozzle is disposed at the end of the sheath receiving the gas charged with particles.

    6.
    发明专利
    未知

    公开(公告)号:FR2742368B1

    公开(公告)日:1998-03-06

    申请号:FR9514990

    申请日:1995-12-18

    Applicant: FRAMATOME SA

    Abstract: An end portion of each of two parts is machined and the machined end portion of the parts are arranged in facing positions to form a welding bevel extending in a longitudinal direction between the parts, whereafter a filler metal is deposited into the welding bevel. The welding bevel is a narrow bevel with side walls at an aperture angle of no more than 5° relative to the longitudinal central plane of the bevel. A nickel alloy comprising 18-32% of chromium is deposited into the welding bevel. The method is particularly suitable for joining a pressurized water nuclear reactor vessel tubing and an austenitic stainless steel primary circuit pipe.

    8.
    发明专利
    未知

    公开(公告)号:FR2742369B1

    公开(公告)日:1998-03-06

    申请号:FR9514991

    申请日:1995-12-18

    Applicant: FRAMATOME SA

    Abstract: PCT No. PCT/FR96/01838 Sec. 371 Date Jul. 28, 1998 Sec. 102(e) Date Jul. 28, 1998 PCT Filed Nov. 20, 1996 PCT Pub. No. WO97/22432 PCT Pub. Date Jun. 26, 1997The machined ends of two parts (2, 4) are arranged in facing positions to form a welding bevel (6) between the parts (2, 4). A series of layers of filler metal are deposited one on top of the other in the welding bevel (6) in a direction thereof corresponding to the width of the parts (2, 4), by melting a wire (14) supplied at a predetermined feed rate to an electric arc between the parts to be welded and an electrode (13) supplied with a predetermined welding current and voltage. Each layer of filler metal essentially consists of a single weld bead across the full width of the bevel (6). The electric welding current and voltage and the feed rate of the wire (14) are predetermined in accordance with the width of the bevel (6).

    9.
    发明专利
    未知

    公开(公告)号:FR2742369A1

    公开(公告)日:1997-06-20

    申请号:FR9514991

    申请日:1995-12-18

    Applicant: FRAMATOME SA

    Abstract: The machined ends of two parts (2, 4) are arranged in facing positions to form a welding bevel (6) between the parts (2, 4). A series of layers of filler metal are deposited one on top of the other in the welding bevel (6) in a direction thereof corresponding to the width of the parts (2, 4), by melting a wire (14) supplied at a predetermined feed rate to an electric arc between the parts to be welded and an electrode (13) supplied with a predetermined welding current and voltage. Each layer of filler metal essentially consists of a single weld bead across the full width of the bevel (6). The electric welding current and voltage and the feed rate of the wire (14) are predetermined in accordance with the width of the bevel (6).

    PROCEDE ET DISPOSITIF DE FIXATION ETANCHE D'UN TUBE DE TRAVERSEE DANS UNE PAROI BOMBEE D'UN COMPOSANT DE REACTEUR NUCLEAIRE

    公开(公告)号:CA2123381A1

    公开(公告)日:1994-11-13

    申请号:CA2123381

    申请日:1994-05-11

    Applicant: FRAMATOME SA

    Inventor: FOURNIER YVES

    Abstract: Société dite : FRAMATOME Procédé et dispositif de fixation étanche d'un tube de traversée dans une paroi bombée d'un composant de réacteur nucléaire DU CONTENU TECHNIQUE DE L'INVENTION Les tubes de traversée (8) sont fixés par frettage dans des ouvertures traversant la paroi bombée (2). On ferme de manière étanche une extrémité (8a) des tubes saillante par rapport à la surface convexe de la paroi (2) et on rapporte et on fixe de manière étanche, une paroi (18) portant un canon à électrons (19) sur la paroi bombée (2), de manière à délimiter une chambre étanche (24). On établit une pression réduite à l'intérieur de la chambre étanche (24) et on dirige le tir (19a) du canon à électrons (19) suivant une génératrice de la zone de jonction d'un tube de traversée (8) avec une ouverture de traversée de la paroi bombée (2). On balaye la zone de jonction par un faisceau d'électrons en déplaçant le canon à électrons (19) en rotation autour de l'axe du tube de traversée (8). L'invention est applicable en particulier au soudage des adaptateurs de traversée (8) d'un couvercle de cuve (2) d'un réacteur nucléaire à eau sous pression. Figure 2.

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