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2 152 091

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IPC

(21) (22)

Application

98118330/02, 1998-10-07

(24)

Start date

1998-10-07

(22)

Actual filing date

1998-10-07

(45)

Published

2000-06-27

(72)

Inventor

Enin A.A.Polozov M.V.Kislitskij A.A.Rozhkov V.V.Gradovich A.A.Filippov E.A.Luzin A.M.Bachurin V.D.Il'In G.V.Batuev V.I.Bychikhin N.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Zavod Khimkontsentratov"

CLADDING UNIT FOR TUBULAR ELEMENTS Russian patent published in 2000 - IPC

Abstract RU 2152091 C1

FIELD: nuclear power engineering. SUBSTANCE: unit designed for cladding fuel rods of VVER reactors by resistance butt welding has split parallel welding chambers that form working cavities. Unit is provided with valve installed in parallel with welding chambers and vacuum-producing facilities. Collet chuck for holding end of can in position is mounted in each welding chamber on can locking end. Additional chuck is provided between pneumatic chuck and mentioned collet chuck. Through channel of mentioned welding chamber has conical section. Inner cone angle equals mating angle of collet chuck. Mechanism for feeding plug to welding chamber has catcher. Centering device is made in the form of spring-loaded disks for axial rotation and radial displacement. Plug cradle is movable device coupled through lock with drive for ramming the plug to collet chuck and for its locking. EFFECT: improved quality of welding; improved operating reliability and enlarged functional capabilities of unit. 3 dwg

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RU 2 152 091 C1

Authors

Enin A.A.

Polozov M.V.

Kislitskij A.A.

Rozhkov V.V.

Gradovich A.A.

Filippov E.A.

Luzin A.M.

Bachurin V.D.

Il'In G.V.

Batuev V.I.

Bychikhin N.A.

Dates

2000-06-27—Published

1998-10-07—Filed