FR2276896A1 - Electron beam welding very long nuclear fuel cans - where tubular body is evacuated and rotated at both ends - Google Patents

Electron beam welding very long nuclear fuel cans - where tubular body is evacuated and rotated at both ends

Info

Publication number
FR2276896A1
FR2276896A1 FR7423486A FR7423486A FR2276896A1 FR 2276896 A1 FR2276896 A1 FR 2276896A1 FR 7423486 A FR7423486 A FR 7423486A FR 7423486 A FR7423486 A FR 7423486A FR 2276896 A1 FR2276896 A1 FR 2276896A1
Authority
FR
France
Prior art keywords
chamber
tube
rotated
electron beam
long
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7423486A
Other languages
French (fr)
Other versions
FR2276896B1 (en
Inventor
Pierre Clara
Henri Foulquier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR7423486A priority Critical patent/FR2276896A1/en
Publication of FR2276896A1 publication Critical patent/FR2276896A1/en
Application granted granted Critical
Publication of FR2276896B1 publication Critical patent/FR2276896B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/02—Details
    • H01J37/18—Vacuum locks ; Means for obtaining or maintaining the desired pressure within the vessel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00—Electron-beam welding or cutting
    • B23K15/04—Electron-beam welding or cutting for welding annular seams
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/02—Details
    • H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement, ion-optical arrangement
    • H01J37/147—Arrangements for directing or deflecting the discharge along a desired path
    • H01J37/15—External mechanical adjustment of electron or ion optical components

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Welding Or Cutting Using Electron Beams (AREA)

Abstract

Electron beam welding appts., using a chamber (I) fitted with an electron gun supplying a focussed beam, a pump creating a prim. vacuum, and at least one sealed housing in the wall for one end of a long round tube held by an expanding joint so the tube can be rotated to make a weld. The novelty is that the tube can be clamped and displaced w.r.t. the housing, and the other end of the tube is mounted in a second housing in a second chamber (II) in which the vacuum is identical to that in chamber (I). Chamber (II) is pref. connected to a pump so the vacuum in the bore of the tube is the same as in chamber (I). Chamber (II) is pref. identical to chamber (I) so that both ends of the long tube can be simultaneously welded. Suitable for welding plugs in the ends of long tubes used to hold fertile or fissile material, i.e. fuel rods.
FR7423486A 1974-07-05 1974-07-05 Electron beam welding very long nuclear fuel cans - where tubular body is evacuated and rotated at both ends Granted FR2276896A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7423486A FR2276896A1 (en) 1974-07-05 1974-07-05 Electron beam welding very long nuclear fuel cans - where tubular body is evacuated and rotated at both ends

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7423486A FR2276896A1 (en) 1974-07-05 1974-07-05 Electron beam welding very long nuclear fuel cans - where tubular body is evacuated and rotated at both ends

Publications (2)

Publication Number Publication Date
FR2276896A1 true FR2276896A1 (en) 1976-01-30
FR2276896B1 FR2276896B1 (en) 1979-08-03

Family

ID=9140952

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7423486A Granted FR2276896A1 (en) 1974-07-05 1974-07-05 Electron beam welding very long nuclear fuel cans - where tubular body is evacuated and rotated at both ends

Country Status (1)

Country Link
FR (1) FR2276896A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4188521A (en) * 1977-08-15 1980-02-12 Westinghouse Electric Corp. Apparatus for welding an end plug in a nuclear fuel tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4188521A (en) * 1977-08-15 1980-02-12 Westinghouse Electric Corp. Apparatus for welding an end plug in a nuclear fuel tube

Also Published As

Publication number Publication date
FR2276896B1 (en) 1979-08-03

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Legal Events

Date Code Title Description
ST Notification of lapse