JPH0358079B2 - - Google Patents
Info
- Publication number
- JPH0358079B2 JPH0358079B2 JP690183A JP690183A JPH0358079B2 JP H0358079 B2 JPH0358079 B2 JP H0358079B2 JP 690183 A JP690183 A JP 690183A JP 690183 A JP690183 A JP 690183A JP H0358079 B2 JPH0358079 B2 JP H0358079B2
- Authority
- JP
- Japan
- Prior art keywords
- shielding material
- cast
- storage container
- case
- steel
- 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
- 239000000463 material Substances 0.000 claims description 22
- 238000003860 storage Methods 0.000 claims description 13
- 238000005266 casting Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 6
- 229910001018 Cast iron Inorganic materials 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000003779 heat-resistant material Substances 0.000 claims description 2
- 239000012857 radioactive material Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000000941 radioactive substance Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Packages (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Description
【発明の詳細な説明】
この発明は、放射性物質の収納容器の製造方法
の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a method for manufacturing a storage container for radioactive substances.
従来、放射性物質の収納容器として、鍛鋼製の
容器本体の外面に、中性子の漏洩を防止するため
の樹脂の層を形成することが行なわれている。そ
して、この構造では内部の収納物の熱を放散する
ために、鍛鋼製本体の外周に樹脂層を貫通するフ
インを設けている。この構造ではフインの部分は
樹脂層がないために、この部分からある程度の中
性子が漏洩することは避けられなかつた。また、
鋳鋼、鍛鋼製の本体の内部に中空部を形成し、そ
こに樹脂を充填して中性子の遮蔽を行なうように
した構造も提案されている。この場合には中空部
の機械加工に非常に手間がかかるという欠点があ
る。 BACKGROUND ART Conventionally, as a storage container for radioactive substances, a resin layer is formed on the outer surface of a container body made of forged steel to prevent leakage of neutrons. In this structure, fins that penetrate the resin layer are provided on the outer periphery of the forged steel main body in order to dissipate the heat of the contents stored inside. In this structure, since there is no resin layer in the fin portion, it was inevitable that a certain amount of neutrons would leak from this portion. Also,
A structure has also been proposed in which a hollow part is formed inside the main body made of cast steel or forged steel, and the hollow part is filled with resin to shield neutrons. In this case, there is a drawback that machining of the hollow portion is very time consuming.
この発明は、このような従来の欠点を解消する
ためになされたものであり、γ線および中性子の
遮蔽効果は充分にあり、かつ容易に製作すること
ができる製造方法に関するものである。 The present invention has been made in order to eliminate such conventional drawbacks, and relates to a manufacturing method that has sufficient γ-ray and neutron shielding effects and can be easily manufactured.
すなわち、この発明は、鋼管、鋼板、セラミツ
ク等の耐熱材料からなる充填用ケース中に、耐熱
性を有する放射能遮蔽材を充填しておき、これを
鋳型中に配置して鋳鉄または鋳鋼を鋳造すること
により、上記充填用ケースを鋳包んだ収納容器本
体を成形するようにしたものである。 That is, this invention is a method of casting cast iron or cast steel by filling a filling case made of a heat-resistant material such as a steel pipe, steel plate, or ceramic with a heat-resistant radiation shielding material, and placing this in a mold. By doing so, the storage container body is formed by casting the filling case.
以下、この発明の実施例を図面によつて説明す
る。第１図および第２図において、収納容器本体
１は鋳鉄または鋳鋼によつて、円筒部２の一方に
底壁２０が一体に形成されてなり、円筒部２の他
方の開口部には内蓋１０および外蓋１１が順次取
付けられ、内蓋１０および外蓋１１の外周には、
図示しないパツキンが配置されてシールされてい
る。収納容器本体１内には、放射性物質を収納し
たバスケツト４が収納されている。 Embodiments of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, a storage container body 1 is made of cast iron or cast steel and has a bottom wall 20 integrally formed on one side of a cylindrical part 2, and an inner cover is provided at the other opening of the cylindrical part 2. 10 and outer cover 11 are attached in sequence, and on the outer periphery of inner cover 10 and outer cover 11,
A seal (not shown) is placed and sealed. Inside the storage container body 1, a basket 4 containing radioactive materials is stored.
円筒部２の内部には多数のパイプ３が軸方向に
埋め込まれ、このパイプ３内には中性子の遮蔽材
７が充填され、蓋１３が取付けられて密封されて
いる。また、円筒部２の外周には放熱用のフイン
８が形成され、外周両端部付近にはトラニオン９
が形成されている。このフインは収納容器本体１
の周方向に配置してもよい。また、底壁２０にも
円筒部２と同様に遮蔽材を配置させてもよい。 A large number of pipes 3 are embedded in the axial direction inside the cylindrical portion 2, the pipes 3 are filled with a neutron shielding material 7, and a lid 13 is attached and sealed. Further, fins 8 for heat radiation are formed on the outer periphery of the cylindrical portion 2, and trunnions 9 are formed near both ends of the outer periphery.
is formed. This fin is the storage container body 1
It may be arranged in the circumferential direction. Furthermore, a shielding material may be placed on the bottom wall 20 as well as on the cylindrical portion 2.
遮蔽材用ケースとしては、上記のように多数の
パイプ３を用いる代りに、第３図に示すように管
状のケース３０を用いてもよい。この場合は、遮
蔽材７が円周方向に連続するために遮蔽効果はよ
り完全であり、このため円筒部２を薄くすること
ができる。また、第４図に示すように、遮蔽材用
ケースを構成する内板３１および外板３２を互い
に連結するようにフイン８０を形成してもよく、
この場合フイン８０と内板３１および外板３２と
を溶接しておけば、鋳造時の冷却による熱収縮の
差による、鋳物本体と内板３１とのずれを防止す
ることができる。 As the shielding material case, instead of using a large number of pipes 3 as described above, a tubular case 30 as shown in FIG. 3 may be used. In this case, since the shielding material 7 is continuous in the circumferential direction, the shielding effect is more complete, and therefore the cylindrical portion 2 can be made thinner. Further, as shown in FIG. 4, fins 80 may be formed to connect the inner plate 31 and outer plate 32 that constitute the shielding material case.
In this case, by welding the fins 80, the inner plate 31, and the outer plate 32, it is possible to prevent misalignment between the cast body and the inner plate 31 due to differences in thermal contraction due to cooling during casting.
第５〜７図はさらに別の実施例を示し、第５図
の例では遮蔽材を貫通するフイン８０を内板３１
の内側まで貫通させて円筒部２に鋳包むように
し、鋳物本体とより強固に結合させるようにして
いる。第６図の例ではフイン８２を外板３２の外
側にのみ取付け、遮蔽材７が円周方向に連続し、
遮蔽効果に切れ目が生じないようにしている。第
７図の例では、内板３１と外板３２とからなる環
状のケース内に遮蔽材７を充填したものを、円筒
部２の内側に配置されるように鋳包んでいる。こ
のように、遮蔽材を充填したケースを鋳包む構造
は種々の変形が可能である。 5 to 7 show still another embodiment, and in the example of FIG.
It penetrates to the inside of the cylindrical part 2 and is cast into the cylindrical part 2 to more firmly connect it to the casting body. In the example shown in FIG. 6, the fins 82 are attached only to the outside of the outer panel 32, and the shielding material 7 is continuous in the circumferential direction.
This prevents any breaks in the shielding effect. In the example shown in FIG. 7, a ring-shaped case consisting of an inner plate 31 and an outer plate 32 is filled with the shielding material 7 and is cast inside the cylindrical part 2. In this way, the structure for encasing the case filled with the shielding material can be modified in various ways.
つぎにこのような構造の収納容器を製造する方
法を説明する。まず、パイプ３あるいはケース３
０中に所定の遮蔽材７を充填する。遮蔽材７とし
てはボロンナイトライド（BN）、ボロンカーバ
イド（B4C）、グラフアイト、その他含水素金属
から選択された一種または二種以上を用いる。こ
れらの微粉末（１〜5μ）を適当な圧力（約100
Kg／cm2）で圧入充填させ、あるいはHIP法（約
2000℃、200Kg／cm2）によつて固化させた後にケ
ース内に挿入するようにしてもよい。つぎに遮蔽
材７を充填したパイプ３またはケース３０を、図
示しない鋳型内に配置させて鋳鉄または鋳鋼を鋳
込む。これによつて遮蔽材７を鋳包んだ収納容器
本体１が形成される。また、この鋳込みに際し、
上記遮蔽材は熱伝導性が良好なため、鋳物の冷却
時の冷却効果を妨げず、とくに球状黒鉛鋳鉄を用
いた場合には冷却が理想的となり、良好な金属組
識が得られる。また、放熱も妨げられないために
放熱用の熱の通路を特別に考慮する必要もない。 Next, a method for manufacturing a storage container having such a structure will be explained. First, pipe 3 or case 3
0 is filled with a predetermined shielding material 7. As the shielding material 7, one or more selected from boron nitride (BN), boron carbide (B 4 C), graphite, and other hydrogen-containing metals is used. These fine powders (1 to 5μ) are heated under appropriate pressure (approximately 100μ).
Kg/cm 2 ), or HIP method (approx.
It may be inserted into the case after being solidified at 2000° C. and 200 kg/cm 2 ). Next, the pipe 3 or the case 30 filled with the shielding material 7 is placed in a mold (not shown), and cast iron or cast steel is poured into the mold. As a result, the container main body 1 in which the shielding material 7 is cast is formed. Also, during this casting,
Since the above-mentioned shielding material has good thermal conductivity, it does not interfere with the cooling effect when cooling the casting, and especially when spheroidal graphite cast iron is used, cooling is ideal and a good metal structure can be obtained. Furthermore, since heat radiation is not hindered, there is no need to take special consideration of the heat path for heat radiation.
また、遮蔽材用のケースを本体に鋳包むと、収
納容器本体に対する遮蔽材の取付けを簡単かつ強
固に行なうことができ、また全体の形状も簡単に
することができ、外面からの非破壊検査も行ない
やすくなる。さらに、遮蔽材結込み工程を鋳型製
作工程と並行工程とすることができる。 In addition, by casting the case for the shielding material into the main body, the shielding material can be easily and firmly attached to the main body of the storage container, and the overall shape can be simplified, making it possible to conduct non-destructive inspection from the outside. It also becomes easier to do. Furthermore, the shielding material tying process can be performed in parallel with the mold manufacturing process.
以上説明したように、この発明は放射性の物質
の収納容器を鋳鉄または鋳鋼製にして、これの鋳
造の際には放射線遮蔽材を内包するケースを一体
に鋳包むようにしたものであり、遮蔽材の取付け
が簡単かつ確実で、収納容器の製造を簡単に行な
うことができるものである。 As explained above, in this invention, a storage container for radioactive substances is made of cast iron or cast steel, and when it is cast, a case containing a radiation shielding material is integrally cast into the container, and the shielding material is The mounting is simple and reliable, and the storage container can be manufactured easily.
第１図はこの発明の実施例を示す部分縦断面側
面図、第２図はその−線断面図、第３図は他
の実施例を示す横断面図、第４図、第５図、第６
図、第７図はそれぞれ別の実施例を示す部分横断
面図である。
１…収納容器本体、２…円筒部、３…遮蔽材用
ケース、７…遮蔽材、８…フイン。
FIG. 1 is a partial vertical cross-sectional side view showing an embodiment of the invention, FIG. 2 is a cross-sectional view taken along the - line, FIG. 3 is a cross-sectional view showing another embodiment, and FIGS. 6
7 are partial cross-sectional views showing different embodiments. DESCRIPTION OF SYMBOLS 1... Storage container main body, 2... Cylindrical part, 3... Case for shielding material, 7... Shielding material, 8... Fin.
Claims (1)
る充填用ケース中に、耐熱性を有する放射能遮蔽
材を充填しておき、これを鋳型中に配置して鋳鉄
または鋳鋼を鋳造することにより、上部充填用ケ
ースを鋳包んだ収納容器本体を成形することを特
徴とする放射性物質の収納容器の製造方法。1. A filling case made of heat-resistant materials such as steel pipes, steel plates, ceramics, etc. is filled with heat-resistant radiation shielding material, and by placing this in a mold and casting cast iron or cast steel, the upper part is A method for manufacturing a storage container for radioactive materials, comprising forming a storage container body in which a filling case is cast.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP690183A JPS59132396A (en) | 1983-01-18 | 1983-01-18 | Method of making storage container of radioactive material |
| EP84300245A EP0116412A1 (en) | 1983-01-18 | 1984-01-16 | A casing for radioactive materials and a method of manufacture of the same |
| US06/805,252 US4752437A (en) | 1983-01-18 | 1985-12-04 | Packaging of radioactive materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP690183A JPS59132396A (en) | 1983-01-18 | 1983-01-18 | Method of making storage container of radioactive material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59132396A JPS59132396A (en) | 1984-07-30 |
| JPH0358079B2 true JPH0358079B2 (en) | 1991-09-04 |
Family
ID=11651126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP690183A Granted JPS59132396A (en) | 1983-01-18 | 1983-01-18 | Method of making storage container of radioactive material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59132396A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE50211653D1 (en) * | 2002-12-24 | 2008-03-20 | Nuklear Service Gmbh Gns | Transport and storage containers for heat-generating radioactive substances, in particular spent nuclear reactor fuel elements or HAW glass canisters |
| JP2011247701A (en) | 2010-05-25 | 2011-12-08 | Mitsubishi Heavy Ind Ltd | Radioactive material containment |
| JP6081182B2 (en) * | 2012-12-19 | 2017-02-15 | イビデン株式会社 | Reactor components |
-
1983
- 1983-01-18 JP JP690183A patent/JPS59132396A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59132396A (en) | 1984-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4752437A (en) | Packaging of radioactive materials | |
| US3005105A (en) | Shipping cask for radioactive materials | |
| US4272683A (en) | Transport and storage vessel for radioactive materials | |
| EP0020948A2 (en) | Cask for radioactive material, method of manufacturing such a cask, module used thereby and method of shielding neutrons | |
| US4663533A (en) | Storage and shipping cask for spent nuclear fuel | |
| JPH1039091A (en) | Container for radioactive substance and radiation shielding material | |
| GB1374099A (en) | Packaging for shipment of radioactive materials | |
| RU2465662C1 (en) | Container for transportation and/or storage of spent nuclear fuel | |
| US4569818A (en) | Container for storing radioactive material | |
| GB2132814A (en) | Container arrangement | |
| JPH0131600B2 (en) | ||
| JPH0358079B2 (en) | ||
| GB2110153A (en) | Container for transporting and/or storing nuclear reactor fuel elements | |
| JPS6249297A (en) | Radiation shielding vessel and manufacture thereof | |
| JP4082179B2 (en) | Spent nuclear fuel storage container | |
| US4021676A (en) | Waste canister for storage of nuclear wastes | |
| US3732423A (en) | Shipping container for radioactive material | |
| JPH0358080B2 (en) | ||
| JPS59132397A (en) | Storage container of radioactive material | |
| JP2004125763A (en) | Radioactive substance containment vessel and manufacturing method therefor | |
| RU187096U1 (en) | CONTAINER FOR TRANSPORTATION AND STORAGE OF WASTE NUCLEAR FUEL | |
| RU171909U1 (en) | TUK CONTAINER WITH REMOVABLE COVER | |
| RU2686476C1 (en) | Container cover for spent nuclear fuel transportation and storage | |
| JPS6118479Y2 (en) | ||
| JPS5926318Y2 (en) | Spent nuclear fuel transport container |