JP4634709B2 - 原子炉構造材の腐食低減方法 - Google Patents
原子炉構造材の腐食低減方法 Download PDFInfo
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- JP4634709B2 JP4634709B2 JP2003435120A JP2003435120A JP4634709B2 JP 4634709 B2 JP4634709 B2 JP 4634709B2 JP 2003435120 A JP2003435120 A JP 2003435120A JP 2003435120 A JP2003435120 A JP 2003435120A JP 4634709 B2 JP4634709 B2 JP 4634709B2
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- 238000005260 corrosion Methods 0.000 title claims abstract description 70
- 230000007797 corrosion Effects 0.000 title claims abstract description 70
- 239000000463 material Substances 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 30
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 73
- 239000001257 hydrogen Substances 0.000 claims abstract description 62
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000000126 substance Substances 0.000 claims abstract description 14
- 230000005284 excitation Effects 0.000 claims abstract description 10
- 239000000725 suspension Substances 0.000 claims abstract description 7
- 230000005855 radiation Effects 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims abstract description 3
- 239000000498 cooling water Substances 0.000 claims description 14
- 238000000746 purification Methods 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 3
- 150000002736 metal compounds Chemical class 0.000 claims description 2
- 229910002367 SrTiO Inorganic materials 0.000 claims 1
- 229910010413 TiO 2 Inorganic materials 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract description 61
- 239000007924 injection Substances 0.000 abstract description 61
- 239000000243 solution Substances 0.000 abstract description 12
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 239000012857 radioactive material Substances 0.000 abstract 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 38
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 38
- 229910000510 noble metal Inorganic materials 0.000 description 11
- 238000012360 testing method Methods 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 229910045601 alloy Inorganic materials 0.000 description 9
- 239000000956 alloy Substances 0.000 description 9
- 239000002826 coolant Substances 0.000 description 9
- 238000005336 cracking Methods 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 7
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 230000002285 radioactive effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000011941 photocatalyst Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
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- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
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- 238000012544 monitoring process Methods 0.000 description 2
- -1 nitrate ions Chemical class 0.000 description 2
- 238000006479 redox reaction Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 229910001093 Zr alloy Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 238000009377 nuclear transmutation Methods 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000003608 radiolysis reaction Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C9/00—Emergency protection arrangements structurally associated with the reactor, e.g. safety valves provided with pressure equalisation devices
-
- 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
- G21C3/324—Coats or envelopes for the bundles
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/18—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/18—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
- C23F11/185—Refractory metal-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/18—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
- C23F11/187—Mixtures of inorganic inhibitors
-
- 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
-
- 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
- G21C19/28—Arrangements for introducing fluent material into the reactor core; Arrangements for removing fluent material from the reactor core
- G21C19/30—Arrangements for introducing fluent material into the reactor core; Arrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products deterioration or corrosion products, impurities, e.g. by cold traps
- G21C19/307—Arrangements for introducing fluent material into the reactor core; Arrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products deterioration or corrosion products, impurities, e.g. by cold traps specially adapted for liquids
-
- 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
- G21C3/07—Casings; Jackets characterised by their material, e.g. alloys
-
- 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
- G21C3/16—Details of the construction within the casing
- G21C3/20—Details of the construction within the casing with coating on fuel or on inside of casing; with non-active interlayer between casing and active material with multiple casings or multiple active layers
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D3/00—Control of nuclear power plant
- G21D3/08—Regulation of any parameters in the plant
-
- 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
-
- 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
Description
本発明に係る原子炉構造材の腐食低減方法の実施例1について、図1から図4を参照して説明する。
本発明の実施例2について図5から図10を参照して説明する。
2 PLR(再循環)系配管
3 CUW(原子炉冷却材浄化)系配管
4 RHR(残留熱除去)系配管
6 シュラウド
7 給水ポンプ
8 PLR(再循環)ポンプ
9 CUW(原子炉冷却材浄化)系ポンプ
10 原子炉圧力容器
12 RHR(残留熱除去)系ポンプ
13,14,15,16 注入点
17 水素注入点
18 酸化チタン注入点
19 水素ガス注入装置
20 酸化チタン溶液注入装置
21 注入ポンプ
22 流量調整弁
25 構造材
26 酸化チタン
27 電子
28 正孔
31 付着量モニタリング試験片
32 閉止弁
33 閉止弁
Claims (6)
- 軽水冷却型の原子炉内に存在する放射線,光および熱のうちいずれか一つ以上の作用により励起電流を生じる物質か、原子炉内の条件下で前記励起電流を生じる物質を形成する金属または金属化合物を含有する溶液または懸濁液を注入することにより、原子炉構造材の表面に上記励起電流を生じる物質を10μg/cm2以上200μg/cm2以下の付着量で付着させるとともに、この励起電流を生じる物質の原子炉構造材表面への付着量を監視し、付着量に応じて原子炉冷却水中に注入する水素の給水水素濃度を0.2ppm以上1ppm以下に制御しつつ水素を注入することにより、腐食電位を−0.4VvsSHE以上−0.1VvsSHE以下の範囲に制御することを特徴とする原子炉構造材の腐食低減方法。
- 前記励起電流を生じる物質がTiO2,ZrO2,WO3およびSrTiO3から選択される少なくとも1種類以上の物質であることを特徴とする請求項1記載の原子炉構造材の腐食低減方法。
- 前記溶液または懸濁液を、給水系,炉水浄化系出口,再循環系および残留熱除去系のいずれか一箇所以上に注入することを特徴とする請求項1記載の原子炉構造材の腐食低減方法。
- 前記水素を、給水系,炉水浄化系出口,再循環系および残留熱除去系のいずれか一箇所以上に注入することを特徴とする請求項1記載の原子炉構造材の腐食低減方法。
- 前記溶液または懸濁液を原子炉起動時および原子炉停止時のいずれかに注入し、前記水素を原子炉運転中に注入することを特徴とする請求項1記載の原子炉構造材の腐食低減方法。
- 前記溶液または懸濁液にあらかじめ水素を添加し、原子炉運転中に前記溶液または懸濁液を冷却水に注入することを特徴とする請求項1記載の原子炉構造材の腐食低減方法。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003435120A JP4634709B2 (ja) | 2003-12-26 | 2003-12-26 | 原子炉構造材の腐食低減方法 |
US11/008,288 US8295426B1 (en) | 2003-06-13 | 2004-12-10 | Method of reducing corrosion of nuclear reactor structural material |
TW093138416A TWI277102B (en) | 2003-06-13 | 2004-12-10 | Method of reducing corrosion of nuclear reactor structural material |
DE102004059968A DE102004059968B4 (de) | 2003-12-26 | 2004-12-13 | Verfahren zur Verminderung der Korrosion eines Kernreaktorstrukturmaterials |
DE102004064075A DE102004064075B4 (de) | 2003-12-26 | 2004-12-13 | Verfahren zur Verminderung der Korrosion eines Kernreaktorstrukturmaterials |
SE0403010A SE529480C2 (sv) | 2003-12-26 | 2004-12-13 | Förfarande för reducering av korrosion hos kärnreaktorkonstruktionsmaterial |
SE0601287A SE530689C2 (sv) | 2003-12-26 | 2006-06-13 | Förfarande för reducering av korrosion hos kärnreaktorkonstruktionsmaterial |
US13/619,377 US8731131B2 (en) | 2003-12-26 | 2012-09-14 | Method of reducing corrosion of nuclear reactor structural material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2003435120A JP4634709B2 (ja) | 2003-12-26 | 2003-12-26 | 原子炉構造材の腐食低減方法 |
Publications (2)
Publication Number | Publication Date |
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JP2005195346A JP2005195346A (ja) | 2005-07-21 |
JP4634709B2 true JP4634709B2 (ja) | 2011-02-16 |
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US (1) | US8731131B2 (ja) |
JP (1) | JP4634709B2 (ja) |
DE (2) | DE102004064075B4 (ja) |
SE (2) | SE529480C2 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4776219B2 (ja) | 2004-12-09 | 2011-09-21 | 株式会社東芝 | 原子力発電プラントとその耐食性被膜形成方法および原子炉運転方法 |
JP4686423B2 (ja) * | 2006-09-12 | 2011-05-25 | 株式会社東芝 | 付着量測定システム及び測定方法 |
JP5457650B2 (ja) * | 2008-08-28 | 2014-04-02 | 株式会社東芝 | 原子炉構造材における酸化チタンの付着量制御方法 |
JP5637867B2 (ja) * | 2009-02-09 | 2014-12-10 | 株式会社東芝 | プラントの運転方法及びシステム |
JP5509246B2 (ja) * | 2012-04-11 | 2014-06-04 | 株式会社東芝 | 酸化チタンの付着量監視方法 |
JP2014130160A (ja) * | 2014-03-24 | 2014-07-10 | Hitachi-Ge Nuclear Energy Ltd | 原子力プラント構成部材の線量低減方法 |
EP3438990B1 (en) * | 2017-07-31 | 2021-09-29 | Kabushiki Kaisha Toshiba | Method of repairing fuel assembly, method of producing fuel assembly, and fuel assembly |
JP6517981B2 (ja) * | 2017-07-31 | 2019-05-22 | 株式会社東芝 | 燃料集合体の改修方法、燃料集合体の製造方法 |
WO2023219820A2 (en) * | 2022-05-13 | 2023-11-16 | Holewa Laura | Method and apparatus for reducing deterioration in a nuclear reactor |
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Also Published As
Publication number | Publication date |
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SE0403010L (sv) | 2005-06-27 |
SE530689C2 (sv) | 2008-08-12 |
DE102004059968A1 (de) | 2005-07-28 |
DE102004064075B4 (de) | 2010-04-08 |
JP2005195346A (ja) | 2005-07-21 |
US8731131B2 (en) | 2014-05-20 |
SE529480C2 (sv) | 2007-08-21 |
DE102004059968B4 (de) | 2010-07-22 |
SE0403010D0 (sv) | 2004-12-13 |
US20130070888A1 (en) | 2013-03-21 |
SE0601287L (sv) | 2006-06-13 |
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