CH622455A5 - - Google Patents
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- Publication number
- CH622455A5 CH622455A5 CH995477A CH995477A CH622455A5 CH 622455 A5 CH622455 A5 CH 622455A5 CH 995477 A CH995477 A CH 995477A CH 995477 A CH995477 A CH 995477A CH 622455 A5 CH622455 A5 CH 622455A5
- Authority
- CH
- Switzerland
- Prior art keywords
- grid
- holding
- welding
- overlapping
- auxiliary device
- Prior art date
Links
- 238000003466 welding Methods 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 12
- 239000003758 nuclear fuel Substances 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 241000251730 Chondrichthyes Species 0.000 claims 1
- 239000000446 fuel Substances 0.000 description 9
- 229910000746 Structural steel Inorganic materials 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Classifications
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
- B23K11/008—Manufacturing of metallic grids or mats by spot welding
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
- G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
- G21C3/34—Spacer grids
- G21C3/3424—Fabrication of spacer grids
-
- 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
- Y02E30/10—Nuclear fusion reactors
-
- 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)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/723,271 US4101752A (en) | 1976-09-15 | 1976-09-15 | Process for welding corner cells in fuel assembly grids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH622455A5 true CH622455A5 (OSRAM) | 1981-04-15 |
Family
ID=24905561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH995477A CH622455A5 (OSRAM) | 1976-09-15 | 1977-08-15 |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4101752A (OSRAM) |
| JP (1) | JPS5335643A (OSRAM) |
| AU (1) | AU505208B2 (OSRAM) |
| BE (1) | BE858747A (OSRAM) |
| CH (1) | CH622455A5 (OSRAM) |
| DE (1) | DE2736139C2 (OSRAM) |
| ES (1) | ES462334A1 (OSRAM) |
| FR (1) | FR2364735A1 (OSRAM) |
| GB (1) | GB1557929A (OSRAM) |
| IT (1) | IT1085037B (OSRAM) |
| SE (1) | SE422754B (OSRAM) |
| YU (1) | YU43747B (OSRAM) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4539738A (en) * | 1982-09-01 | 1985-09-10 | Westinghouse Electric Corp. | Strap and vane positioning fixture for fuel rod grid and method |
| US4522330A (en) * | 1982-09-01 | 1985-06-11 | Westinghouse Electric Corp. | Grid and sleeves welding fixture and method |
| FR2533352B1 (fr) * | 1982-09-16 | 1988-08-12 | Fragema Framatome & Cogema | Procede et dispositif d'assemblage de plaquettes de grilles |
| US4556776A (en) * | 1983-07-26 | 1985-12-03 | Westinghouse Electric Corp. | Welding fixture for nuclear reactor fuel assembly grid |
| EP1516693B1 (de) * | 2003-09-19 | 2012-11-07 | Trumpf Laser- und Systemtechnik GmbH | Laserbearbeitungsmaschine zum Erzeugen linearer Schweissnähte und Verfahren zum Erzeugen linearer Schweissnähte an einem Werkstück |
| US10759007B2 (en) | 2013-03-14 | 2020-09-01 | Bwxt Mpower, Inc. | Spacer grid welding fixture |
| CN111347137A (zh) * | 2018-12-20 | 2020-06-30 | 中核建中核燃料元件有限公司 | 一种用于燃料盒定位销钉环缝tig全自动焊接的焊接夹具 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1894454A (en) * | 1930-09-11 | 1933-01-17 | Edward G Todt | Welding clamp |
| US2404857A (en) * | 1942-11-24 | 1946-07-30 | Helen Mclaren | Fastener for positioning, aligning, and securing plates for welding |
| US3068351A (en) * | 1959-03-27 | 1962-12-11 | American Mach & Foundry | Welding machine |
| US3054887A (en) * | 1960-08-08 | 1962-09-18 | Western Electric Co | Welding fixture |
| US3789184A (en) * | 1969-12-23 | 1974-01-29 | Reactor Centrum Nederland | Air-excluding spot-welding method for making heat-exchange grid |
| US3736227A (en) * | 1970-06-01 | 1973-05-29 | Continental Oil Co | Nuclear reactor fuel element spacer assembly lock |
| GB1362546A (en) * | 1970-07-24 | 1974-08-07 | United Nuclear Corp | Spacer and grid assembly for nuclear reactors |
| CA941524A (en) * | 1971-03-18 | 1974-02-05 | Karl H. Puechl | Spacer grid for nuclear reactor fuel assembly |
| US4039379A (en) * | 1975-02-28 | 1977-08-02 | Exxon Nuclear Company, Inc. | Mixing vane grid spacer |
-
1976
- 1976-09-15 US US05/723,271 patent/US4101752A/en not_active Expired - Lifetime
-
1977
- 1977-08-08 AU AU27707/77A patent/AU505208B2/en not_active Expired
- 1977-08-11 DE DE2736139A patent/DE2736139C2/de not_active Expired
- 1977-08-15 CH CH995477A patent/CH622455A5/de not_active IP Right Cessation
- 1977-08-15 YU YU1969/77A patent/YU43747B/xx unknown
- 1977-09-07 GB GB37308/77A patent/GB1557929A/en not_active Expired
- 1977-09-12 IT IT27442/77A patent/IT1085037B/it active
- 1977-09-13 FR FR7727606A patent/FR2364735A1/fr active Granted
- 1977-09-13 ES ES462334A patent/ES462334A1/es not_active Expired
- 1977-09-13 JP JP10953577A patent/JPS5335643A/ja active Granted
- 1977-09-14 SE SE7710306A patent/SE422754B/xx not_active IP Right Cessation
- 1977-09-15 BE BE180952A patent/BE858747A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5335643A (en) | 1978-04-03 |
| ES462334A1 (es) | 1978-08-16 |
| AU505208B2 (en) | 1979-11-15 |
| SE7710306L (sv) | 1978-03-16 |
| JPS5440452B2 (OSRAM) | 1979-12-04 |
| AU2770777A (en) | 1979-02-15 |
| US4101752A (en) | 1978-07-18 |
| IT1085037B (it) | 1985-05-28 |
| BE858747A (fr) | 1978-03-15 |
| YU196977A (en) | 1982-08-31 |
| DE2736139A1 (de) | 1978-03-16 |
| DE2736139C2 (de) | 1986-06-19 |
| FR2364735B1 (OSRAM) | 1980-04-25 |
| FR2364735A1 (fr) | 1978-04-14 |
| GB1557929A (en) | 1979-12-19 |
| YU43747B (en) | 1989-12-31 |
| SE422754B (sv) | 1982-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |