FR2419794A1 - Shearing fragile tubular bodies, partic. nuclear fuel elements - by machine incorporating blades which form circular rim applying constraint to break tube without harm - Google Patents

Shearing fragile tubular bodies, partic. nuclear fuel elements - by machine incorporating blades which form circular rim applying constraint to break tube without harm

Info

Publication number
FR2419794A1
FR2419794A1 FR7807167A FR7807167A FR2419794A1 FR 2419794 A1 FR2419794 A1 FR 2419794A1 FR 7807167 A FR7807167 A FR 7807167A FR 7807167 A FR7807167 A FR 7807167A FR 2419794 A1 FR2419794 A1 FR 2419794A1
Authority
FR
France
Prior art keywords
shearing
nuclear fuel
fuel elements
partic
harm
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
FR7807167A
Other languages
French (fr)
Other versions
FR2419794B1 (en
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.)
British Nuclear Fuels Ltd
Original Assignee
British Nuclear Fuels Ltd
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 British Nuclear Fuels Ltd filed Critical British Nuclear Fuels Ltd
Priority to FR7807167A priority Critical patent/FR2419794A1/en
Priority to JP2929379A priority patent/JPS54132884A/en
Publication of FR2419794A1 publication Critical patent/FR2419794A1/en
Application granted granted Critical
Publication of FR2419794B1 publication Critical patent/FR2419794B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D21/00—Machines or devices for shearing or cutting tubes
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
    • G21C19/34—Apparatus or processes for dismantling nuclear fuel, e.g. before reprocessing ; Apparatus or processes for dismantling strings of spent fuel elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Mechanical Engineering (AREA)
  • Accessories And Tools For Shearing Machines (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

A machine for shearing fragile tubes incorporates blades which can be advanced towards a tubular body to be sheared so as to form a continuous rim of dimensions slightly smaller than those of the tubular body. Thus a constraint is applied to the body to break it at the place where the constraint is applied. Used e.g. in the retreatment of irradiated nuclear fuel elements which are in tubular form and are composed of metallic uranium. Such elements have welded end caps which facilitate the support of the element in the core of a nuclear reactor. These can now be removed without fracturing the tube.
FR7807167A 1978-03-13 1978-03-13 Shearing fragile tubular bodies, partic. nuclear fuel elements - by machine incorporating blades which form circular rim applying constraint to break tube without harm Granted FR2419794A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7807167A FR2419794A1 (en) 1978-03-13 1978-03-13 Shearing fragile tubular bodies, partic. nuclear fuel elements - by machine incorporating blades which form circular rim applying constraint to break tube without harm
JP2929379A JPS54132884A (en) 1978-03-13 1979-03-13 Edge cutting machine and method for brittle pipeesaped body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7807167A FR2419794A1 (en) 1978-03-13 1978-03-13 Shearing fragile tubular bodies, partic. nuclear fuel elements - by machine incorporating blades which form circular rim applying constraint to break tube without harm

Publications (2)

Publication Number Publication Date
FR2419794A1 true FR2419794A1 (en) 1979-10-12
FR2419794B1 FR2419794B1 (en) 1985-03-15

Family

ID=9205689

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7807167A Granted FR2419794A1 (en) 1978-03-13 1978-03-13 Shearing fragile tubular bodies, partic. nuclear fuel elements - by machine incorporating blades which form circular rim applying constraint to break tube without harm

Country Status (2)

Country Link
JP (1) JPS54132884A (en)
FR (1) FR2419794A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4497770A (en) * 1981-04-29 1985-02-05 Salzgitter Ag Storage structure for nuclear waste
FR2607310A1 (en) * 1986-09-05 1988-05-27 Atomic Energy Authority Uk APPARATUS AND METHOD FOR REMOVING, FROM A NUCLEAR FUEL NEEDLE, THE METAL WIRE THROUGH IT
US4747995A (en) * 1985-06-10 1988-05-31 Widder Corporation Velocity limiter shear for BWR control rods

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62122711A (en) * 1985-11-25 1987-06-04 高純度シリコン株式会社 Pushing cracking cutter for bar-shaped member

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB784289A (en) * 1955-07-07 1957-10-09 Lilla Edets Pappersbruks Aktie Improvements in machines for cutting tubes of pasteboard or similar or plastic material
US3156394A (en) * 1959-05-04 1964-11-10 Commissariat Energie Atomique Apparatus for cutting a casing of malleable material containing a solid material
BE694917A (en) * 1967-03-02 1967-09-04
US3756108A (en) * 1971-12-13 1973-09-04 Western Electric Co Tube cutter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1627231A1 (en) * 1967-06-13 1970-09-10 Mannesmann Meer Ag Guillotine shears for cutting rolling stock moving at high speed, preferably pipes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB784289A (en) * 1955-07-07 1957-10-09 Lilla Edets Pappersbruks Aktie Improvements in machines for cutting tubes of pasteboard or similar or plastic material
US3156394A (en) * 1959-05-04 1964-11-10 Commissariat Energie Atomique Apparatus for cutting a casing of malleable material containing a solid material
BE694917A (en) * 1967-03-02 1967-09-04
US3756108A (en) * 1971-12-13 1973-09-04 Western Electric Co Tube cutter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4497770A (en) * 1981-04-29 1985-02-05 Salzgitter Ag Storage structure for nuclear waste
US4747995A (en) * 1985-06-10 1988-05-31 Widder Corporation Velocity limiter shear for BWR control rods
FR2607310A1 (en) * 1986-09-05 1988-05-27 Atomic Energy Authority Uk APPARATUS AND METHOD FOR REMOVING, FROM A NUCLEAR FUEL NEEDLE, THE METAL WIRE THROUGH IT

Also Published As

Publication number Publication date
FR2419794B1 (en) 1985-03-15
JPS54132884A (en) 1979-10-16

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse