GB1198565A - Method of Construction of Sealed Enclosures. - Google Patents
Method of Construction of Sealed Enclosures.Info
- Publication number
- GB1198565A GB1198565A GB21275/68A GB2127568A GB1198565A GB 1198565 A GB1198565 A GB 1198565A GB 21275/68 A GB21275/68 A GB 21275/68A GB 2127568 A GB2127568 A GB 2127568A GB 1198565 A GB1198565 A GB 1198565A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cap
- welding
- tube
- grooves
- inert gas
- 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.)
- Expired
Links
Classifications
-
- 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
- G21C3/02—Fuel elements
-
- 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
- G21C3/02—Fuel elements
- G21C3/04—Constructional details
- G21C3/06—Casings; Jackets
- G21C3/10—End closures ; Means for tight mounting therefor
-
- 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
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Welding Or Cutting Using Electron Beams (AREA)
- Particle Accelerators (AREA)
Abstract
1,198,565. Fuel elements. COMMISSARIAT A L'ENERGIE ATOMIQUE. 6 May, 1968 [18 May, 1967], No. 21275/68. Heading G6C. [Also in Division B3] In forming a sealed enclosure, e.g. a nuclear fuel element by welding at least one end-cap to a tube, the peripheral surface of the end-cap is formed with a large number of small grooves which when the end cap is inserted in the tube maintains communication between the exterior and interior of the tube, the assembly is positioned in a chamber containing an atmosphere, e.g. a vacuum or inert gas, different from the free atmosphere and the end cap is welded to the tube in such manner as to close the ducts. Grooves may also be formed in the surface of the tube adjacent the end-cap. An annular tapered end-cap 14 is forced between the concentric walls 8, 10 of a fuel element, the walls being of a magnesiumzirconium alloy. Inclined or axial grooves 26 are provided on the inner and outer surfaces of the end-cap, e.g. by milling. Welding is effected by an electron or laser beam in a vacuum chamber. The welding proceeds in a direction such that the inner ends of inclined grooves are sealed first. If an inert gas is to be contained in the fuel element, the welding chamber contains an inert gas, e.g. argon, and gas shielded arc-welding is effected with or without a consumable electrode. After welding, the walls are pressed into grooves 12. Annular or solid end-caps of circular, rectangular and star-shape may be used to seal correspondingly shaped tubes. A refractory insulator 20, of say magnesium oxide, having a grooved periphery may be located adjacent the end-cap.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR106877A FR1530633A (en) | 1967-05-18 | 1967-05-18 | Process for producing tight enclosures, applicable to the manufacture of a nuclear fuel element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1198565A true GB1198565A (en) | 1970-07-15 |
Family
ID=8631071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21275/68A Expired GB1198565A (en) | 1967-05-18 | 1968-05-06 | Method of Construction of Sealed Enclosures. |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5022199B1 (en) |
| BE (1) | BE713477A (en) |
| CH (1) | CH508967A (en) |
| ES (1) | ES353974A1 (en) |
| FR (1) | FR1530633A (en) |
| GB (1) | GB1198565A (en) |
| LU (1) | LU56042A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3708865A (en) * | 1968-12-16 | 1973-01-09 | Euratom | Method for magnetic exploding coil welding in special atmospheres |
| US4075454A (en) * | 1973-09-20 | 1978-02-21 | Westinghouse Electric Corporation | Process and apparatus for sealing nuclear reactor fuel |
| GB2282478A (en) * | 1993-10-01 | 1995-04-05 | Us Energy | A radioisotope production target |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE766669A (en) * | 1971-05-04 | 1971-10-01 | Belgonucleaire Sa | PRESSURIZED COMBUSTIBLE BARS MANUFACTURING PROCESS |
-
1967
- 1967-05-18 FR FR106877A patent/FR1530633A/en not_active Expired
-
1968
- 1968-04-10 BE BE713477D patent/BE713477A/xx unknown
- 1968-04-25 CH CH614368A patent/CH508967A/en not_active IP Right Cessation
- 1968-05-06 GB GB21275/68A patent/GB1198565A/en not_active Expired
- 1968-05-08 LU LU56042D patent/LU56042A1/xx unknown
- 1968-05-17 ES ES353974A patent/ES353974A1/en not_active Expired
- 1968-05-18 JP JP43033172A patent/JPS5022199B1/ja active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3708865A (en) * | 1968-12-16 | 1973-01-09 | Euratom | Method for magnetic exploding coil welding in special atmospheres |
| US4075454A (en) * | 1973-09-20 | 1978-02-21 | Westinghouse Electric Corporation | Process and apparatus for sealing nuclear reactor fuel |
| GB2282478A (en) * | 1993-10-01 | 1995-04-05 | Us Energy | A radioisotope production target |
| GB2282478B (en) * | 1993-10-01 | 1997-08-13 | Us Energy | Method of fabricating 99Mo production targets using low enriched uranium |
| US6160862A (en) * | 1993-10-01 | 2000-12-12 | The United States Of America As Represented By The United States Department Of Energy | Method for fabricating 99 Mo production targets using low enriched uranium, 99 Mo production targets comprising low enriched uranium |
Also Published As
| Publication number | Publication date |
|---|---|
| CH508967A (en) | 1971-06-15 |
| FR1530633A (en) | 1968-06-28 |
| LU56042A1 (en) | 1968-09-03 |
| BE713477A (en) | 1968-08-16 |
| ES353974A1 (en) | 1970-10-16 |
| JPS5022199B1 (en) | 1975-07-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |