JP6208962B2 - 貯蔵用キャニスターの応力腐食割れ防止方法 - Google Patents
貯蔵用キャニスターの応力腐食割れ防止方法 Download PDFInfo
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- JP6208962B2 JP6208962B2 JP2013056020A JP2013056020A JP6208962B2 JP 6208962 B2 JP6208962 B2 JP 6208962B2 JP 2013056020 A JP2013056020 A JP 2013056020A JP 2013056020 A JP2013056020 A JP 2013056020A JP 6208962 B2 JP6208962 B2 JP 6208962B2
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- Prior art keywords
- stress
- range
- cylindrical body
- storage canister
- compressive
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Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/06—Details of, or accessories to, the containers
- G21F5/12—Closures for containers; Sealing arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
- B65D53/06—Sealings formed by liquid or plastic material
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/005—Containers for solid radioactive wastes, e.g. for ultimate disposal
- G21F5/008—Containers for fuel elements
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/28—Treating solids
- G21F9/34—Disposal of solid waste
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/28—Treating solids
- G21F9/34—Disposal of solid waste
- G21F9/36—Disposal of solid waste by packaging; by baling
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F7/00—Shielded cells or rooms
- G21F7/015—Room atmosphere, temperature or pressure control devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Laser Beam Processing (AREA)
Description
(r:筒状胴体の外半径、t:筒状胴体の厚み)
(L:第1の圧縮応力を付与する筒状胴体の範囲であり、筒状胴体の上端から軸方向内側へ向かう軸方向範囲、r:筒状胴体の外半径、t:筒状胴体の厚み)
(r:筒状胴体の外半径、t:筒状胴体の厚み)
(グラインダ処理)
SUS304L:161μm(本州北端)、625μm(中部日本海沿岸)
SUS316L:213μm(本州北端)、829μm(中部日本海沿岸)
(ピーニング処理)
SUS304L:114μm(本州北端)、442μm(中部日本海沿岸)
SUS316L:182μm(本州北端)、706μm(中部日本海沿岸)
(バニッシング処理)
SUS316L:215μm(本州北端)、838μm(中部日本海沿岸)
2 胴体
3 底部材
4 蓋体
5 一次蓋部材
6 二次蓋部材
7 有底筒状胴体
10 移送用キャスク
L 第1の圧縮応力を付与する軸方向範囲
Claims (5)
- 金属製の筒状胴体の上部に蓋体を溶接することによって当該筒状胴体における引張残留応力が生じた範囲に圧縮応力を付与して、応力腐食割れを防止する貯蔵用キャニスターの応力腐食割れ防止方法であって、
前記蓋体の溶接によって前記引張残留応力の発生が予定される前記筒状胴体の範囲に予め第1の圧縮応力を付与し、当該範囲に圧縮残留応力が生じている状態で前記蓋体を溶接することで発生する引張残留応力をキャンセルし、その後、溶接時に融解に近い状態となる、前記筒状胴体の上端と、その近傍の軸方向範囲にのみ、第2の圧縮応力を付与して当該範囲の全域で圧縮残留応力を生じさせることを特徴とする貯蔵用キャニスターの応力腐食割れ防止方法。 - 前記第1の圧縮応力を付与する前記筒状胴体の範囲は、当該筒状胴体の上端から軸方向内側へ向かう軸方向範囲であり、この軸方向範囲Lが下記関係式を満たすことを特徴とする請求項1に記載の貯蔵用キャニスターの応力腐食割れ防止方法。
(r:筒状胴体の外半径、t:筒状胴体の厚み) - 前記第1の圧縮応力は、ジルコニアショットピーニング法又はバニシング法によって付与することを特徴とする請求項1又は2に記載の貯蔵用キャニスターの応力腐食割れ防止方法。
- 貯蔵用キャニスターを、当該貯蔵用キャニスターを設置するための移送用キャスクに、前記第2の圧縮応力を付与するための開口を当該移送用キャスクとの間に設けた状態で設置することを特徴とする請求項1に記載の貯蔵用キャニスターの応力腐食割れ防止方法。
- 前記蓋体は、前記筒状胴体の上端に溶接された上蓋とこの上蓋の内部側で当該筒状胴体に溶接された下蓋とからなり、当該下蓋の溶接位置が当該筒状胴体の上端から下記関係式の右辺で表されるL最小値までの軸方向範囲内であることを特徴とする請求項4に記載の貯蔵用キャニスターの応力腐食割れ防止方法。
(L:第1の圧縮応力を付与する筒状胴体の範囲であり、筒状胴体の上端から軸方向内側へ向かう軸方向範囲、r:筒状胴体の外半径、t:筒状胴体の厚み)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013056020A JP6208962B2 (ja) | 2013-03-19 | 2013-03-19 | 貯蔵用キャニスターの応力腐食割れ防止方法 |
KR1020157027339A KR102102581B1 (ko) | 2013-03-19 | 2014-03-07 | 저장용 캐니스터의 응력부식균열방지 방법 및 저장용 캐니스터 |
PCT/JP2014/055892 WO2014148275A1 (ja) | 2013-03-19 | 2014-03-07 | 貯蔵用キャニスターの応力腐食割れ防止方法及び貯蔵用キャニスター |
US14/777,856 US9508459B2 (en) | 2013-03-19 | 2014-03-07 | Method to prevent stress corrosion cracking of storage canister and storage canister |
TW103110024A TWI619123B (zh) | 2013-03-19 | 2014-03-18 | 儲存桶之應力腐蝕破裂防止方法以及儲存桶 |
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JP2013056020A JP6208962B2 (ja) | 2013-03-19 | 2013-03-19 | 貯蔵用キャニスターの応力腐食割れ防止方法 |
Publications (2)
Publication Number | Publication Date |
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JP2014181978A JP2014181978A (ja) | 2014-09-29 |
JP6208962B2 true JP6208962B2 (ja) | 2017-10-04 |
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JP2013056020A Active JP6208962B2 (ja) | 2013-03-19 | 2013-03-19 | 貯蔵用キャニスターの応力腐食割れ防止方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9508459B2 (ja) |
JP (1) | JP6208962B2 (ja) |
KR (1) | KR102102581B1 (ja) |
TW (1) | TWI619123B (ja) |
WO (1) | WO2014148275A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6058586B2 (ja) * | 2014-05-29 | 2017-01-11 | 愛三工業株式会社 | エンジン用排気還流弁の製造方法 |
JP6751637B2 (ja) * | 2016-09-30 | 2020-09-09 | 日立造船株式会社 | コンクリートキャスク |
JP6266076B2 (ja) * | 2016-11-11 | 2018-01-24 | 愛三工業株式会社 | 弁体と弁軸の固定方法 |
JP7048028B2 (ja) * | 2017-09-27 | 2022-04-05 | 日立造船株式会社 | 渦電流探傷システムおよび渦電流探傷方法 |
CN111584400B (zh) * | 2020-05-14 | 2023-11-07 | 宁波江丰电子材料股份有限公司 | 一种干法刻蚀半导体通气腔体及其制备方法 |
JP7422607B2 (ja) * | 2020-05-27 | 2024-01-26 | 日立造船株式会社 | 残留応力改善方法 |
Family Cites Families (4)
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JPS54133442A (en) * | 1978-04-10 | 1979-10-17 | Hitachi Ltd | Producing method for compressive residual stress at inner surface of pipe line weld zone |
JP2001170823A (ja) * | 1999-12-17 | 2001-06-26 | Nkk Corp | 金属製構造物の亀裂部の補修方法 |
JP4291588B2 (ja) * | 2003-01-31 | 2009-07-08 | 株式会社神戸製鋼所 | コンクリートキャスク並びにその製造方法 |
JP2005134173A (ja) * | 2003-10-29 | 2005-05-26 | Mitsui Eng & Shipbuild Co Ltd | キャニスタ蓋部の残留応力除去方法及びキャニスタ |
-
2013
- 2013-03-19 JP JP2013056020A patent/JP6208962B2/ja active Active
-
2014
- 2014-03-07 KR KR1020157027339A patent/KR102102581B1/ko active IP Right Grant
- 2014-03-07 WO PCT/JP2014/055892 patent/WO2014148275A1/ja active Application Filing
- 2014-03-07 US US14/777,856 patent/US9508459B2/en active Active
- 2014-03-18 TW TW103110024A patent/TWI619123B/zh active
Also Published As
Publication number | Publication date |
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KR20150131086A (ko) | 2015-11-24 |
TWI619123B (zh) | 2018-03-21 |
KR102102581B1 (ko) | 2020-04-21 |
US9508459B2 (en) | 2016-11-29 |
JP2014181978A (ja) | 2014-09-29 |
US20160240275A1 (en) | 2016-08-18 |
TW201438024A (zh) | 2014-10-01 |
WO2014148275A1 (ja) | 2014-09-25 |
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