JPS6061185A - Lining method of metallic material surface - Google Patents
Lining method of metallic material surfaceInfo
- Publication number
- JPS6061185A JPS6061185A JP16743983A JP16743983A JPS6061185A JP S6061185 A JPS6061185 A JP S6061185A JP 16743983 A JP16743983 A JP 16743983A JP 16743983 A JP16743983 A JP 16743983A JP S6061185 A JPS6061185 A JP S6061185A
- Authority
- JP
- Japan
- Prior art keywords
- piping
- lining
- stainless steel
- sheet
- contaminated
- 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.)
- Pending
Links
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
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/001—Decontamination of contaminated objects, apparatus, clothes, food; Preventing contamination thereof
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の属する技術分野〕
本発明は、放射性物質で汚染される場所に使用される機
器・配管などの表面を最初から薄い板でライニングして
おき、この板をはがすことにより放射性物質による除染
を容易にする方法において、機器・配管等の表面をライ
ニングする金属材料表面のライニング方法に関する。[Detailed description of the invention] [Technical field to which the invention pertains] The present invention is directed to a method in which the surfaces of equipment, piping, etc. used in places contaminated with radioactive substances are lined with a thin plate from the beginning, and this plate is peeled off. The present invention relates to a method of lining the surface of a metal material for lining the surface of equipment, piping, etc., in a method of facilitating decontamination by radioactive substances.
原子力施設においては、多くの機器・配管などは放射性
物質で汚染される。これらの施設が耐用年数になって解
体処分全またり、また一部の修理などにより多量の放射
性物質に汚染された廃棄物が出る。これらの多量の廃棄
物の処分が大きな問題となっている。At nuclear facilities, many equipment, piping, etc. are contaminated with radioactive materials. When these facilities reach the end of their useful life, they are completely dismantled, and some of them are repaired, resulting in a large amount of waste contaminated with radioactive materials. Disposal of these large amounts of waste has become a major problem.
従来、これらの放射性廃棄物は適当な大きさに切断し、
コンクリートで固めたり、ドラム缶に詰めたり、また溶
融減容し、保存するなどの方法で処理されている。しか
し、商業用原子炉などの大型施設を解体処理する場合に
は、おびただしい量の配管・機器などの放射性汚染物が
出ることから、これらを従来の方法により処理すること
は、処理費用の面からも、また保管面からも問題がある
上に資源の有効活用という面でもよい方法とは言えない
。Traditionally, these radioactive wastes are cut into appropriate sizes and
It is processed by methods such as hardening it with concrete, packing it in drums, or melting it to reduce its volume and preserving it. However, when dismantling large facilities such as commercial nuclear reactors, a large amount of radioactive contaminants such as pipes and equipment are generated, so it is difficult to dispose of them using conventional methods due to the cost. However, there are also problems from a storage perspective, and it is not a good method from the perspective of effective use of resources.
これらの廃棄物は、炉心において中性子に照射される部
分に使用されている一部の材料を除いては、はとんどが
表面だけが放射性物質で汚染されているだけである。こ
のため、この表面の汚染全完全に除去することができれ
ば、これらの材料はリサイクルでき、資源として活用す
ることができる。With the exception of some materials used in the parts of the reactor core that are irradiated with neutrons, most of these waste materials are only contaminated with radioactive materials on the surface. Therefore, if all surface contamination can be completely removed, these materials can be recycled and used as resources.
放射性物質により汚染された金属表面の除染方法として
は、酸、アルカリ溶液による洗浄、酸液中で電解研磨を
行い、表面の付着物を溶解し除去する方法がある。しか
し、この方法では、多量の放射性廃液が出るという欠点
がある上に汚染面全体にわたり一様に完全に除染するこ
とがきわめてむずかしい。Methods for decontaminating metal surfaces contaminated with radioactive substances include cleaning with acid or alkaline solutions and electrolytic polishing in acid solutions to dissolve and remove deposits on the surface. However, this method has the disadvantage of producing a large amount of radioactive waste fluid, and it is extremely difficult to uniformly and completely decontaminate the entire contaminated surface.
また、最近、プラズマアークにより、放射性汚染金属の
表面のみを溶解し除去するなど、いくつかの新しい除去
方法が提案されている。しかし、いずれの方法において
も、除染が不完全であったり、高価な設備を必要とし、
処理費用が高価であるなどの問題がある。このため大型
の施設の解体処理の場合のように多量の放射性廃棄物が
出る場合の処理には適さない。このため、簡単に、かつ
完全に除染のできる方法が必要とされている。Recently, several new removal methods have been proposed, such as using a plasma arc to melt and remove only the surface of radioactively contaminated metal. However, with either method, decontamination is incomplete or requires expensive equipment.
There are problems such as high processing costs. For this reason, it is not suitable for disposing of large amounts of radioactive waste, such as when dismantling large facilities. Therefore, there is a need for a simple and complete decontamination method.
この方法の１つとして、製作段階において、これらの機
器・配管の汚染される面を薄い金属の板によりライニン
グしておき、使用後にこれらの表面をライニングしてい
る板をはさ゛とることによって除染する方法が考えられ
ている。この方法では、使用中には長期間にわたり、高
温や高い放射線の下での使用においても、はがれたりす
ることなくぴったりと金属板を配管・機器の表面に貼り
ついており、かつ、使用後には、表面の板を容易にはぎ
とることのできる安価なライニングの方法が必要である
。One method for this is to line the contaminated surfaces of these equipment and piping with thin metal plates during the manufacturing stage, and then remove the contaminated surfaces by removing the plates lining these surfaces after use. A method of dyeing is being considered. With this method, the metal plate is firmly attached to the surface of the piping/equipment without peeling off even when used for a long period of time, even under high temperatures and high radiation, and after use, There is a need for an inexpensive method of lining that allows for easy stripping of the surface board.
冷間圧接法など、従来、複合材料とよばれているものの
製造方法では、強固に付きすぎて、使用後にはぎとるこ
とは困難であるなどの欠点がある。Conventional methods for manufacturing so-called composite materials, such as cold welding, have the disadvantage that they adhere too tightly and are difficult to peel off after use.
不発明は、原子力施設の放射性物質によって汚染される
場所に使用する配管や機器の表面を薄い板でライニング
し、使用後の廃却時にこれらの表面にライニングした板
をはぎとることにより除染全容易にする方法に適した金
属板のライニングの安価な方法を提供することを目的と
する。The invention is to line the surfaces of piping and equipment used in areas contaminated by radioactive materials in nuclear facilities with thin plates, and to remove the lining plates from these surfaces when disposing of them after use, making decontamination completely easy. The purpose of the present invention is to provide an inexpensive method of lining a metal plate suitable for lining the metal plate.
本発明は、ステンレスやニッケル含有合金でできている
機器や配管の表面にステンレスなどの薄い金属板でライ
ニングする方法として、機器や配管の表面と板との間に
ニッケル箔をはさみ、押し付けながら加熱し、このニッ
ケル箔で双方の材料を融着する金属材料表面のライニン
グ方法である。The present invention is a method for lining the surface of equipment or piping made of stainless steel or nickel-containing alloys with a thin metal plate such as stainless steel, in which a nickel foil is sandwiched between the surface of the equipment or piping and the plate, and heated while being pressed. This is a method of lining the surface of a metal material in which both materials are fused together using this nickel foil.
本発明によれば、（１）長期間、高温、高放射線の下で
使用しても接着材の劣化により、はがれることはない。According to the present invention, (1) the adhesive will not peel off due to deterioration even if used for a long period of time under high temperature and high radiation conditions;
（２）使用後に表面の板を容易にはがすことができる。(2) The surface plate can be easily peeled off after use.
（３）きわめて簡単な方法であることから安価にできる
。（４）ステンレスなど、原子力用材料に含まれるニッ
ケルしか使用しないため、原子力施設（例えば原子炉の
１次冷却系などに）使用の場合にも、有害な元素がシス
テム内に溶出するなどの心配がない。（５）材料の腐食
の原因になったり、応力腐食の原因碌ど、悪い影響を与
えることはない。などの効果を発揮する。(3) Since it is an extremely simple method, it can be done at low cost. (4) Since only nickel, which is found in nuclear power materials such as stainless steel, is used, there is a risk of harmful elements leaching into the system when used in nuclear facilities (for example, in the primary cooling system of a nuclear reactor). There is no. (5) It does not cause material corrosion or cause stress corrosion or have any other negative effects. It exerts effects such as.
本発明の一実施例として、原子力施設に使用される、ス
テンレスパイプの内面を、ステンレスの板でライニング
する方法を説明する。第１図に示すように、図中１はパ
イプであり、２はパイプ内面にライニングするステンレ
スの板である。パイプの太さ、使用する場所などにより
異るが、０．１〜０．５■位の厚さの板が用いられる。As an embodiment of the present invention, a method of lining the inner surface of a stainless steel pipe used in a nuclear facility with a stainless steel plate will be described. As shown in FIG. 1, numeral 1 in the figure is a pipe, and numeral 2 is a stainless steel plate lining the inner surface of the pipe. Although it varies depending on the thickness of the pipe and the place where it is used, a plate with a thickness of about 0.1 to 0.5 cm is used.
３はニッケル箔でありパイプとステンレス板を接着する
役目をする。４はステンレス板とニッケル箔をパイプｌ
の内面に押しつける装置であり、５の機構で押し付ける
強さを調節する。3 is a nickel foil that serves to bond the pipe and the stainless steel plate. 4. Pipe the stainless steel plate and nickel foil.
It is a device that presses against the inner surface of the body, and the force of the pressure is adjusted using the mechanism 5.
このようにステンレスパイプの内面にニッケル箔をはさ
んで、ステンレス板を密着させた状態で７００℃で１時
間程加熱すると、ニッケル箔がパイプ内面、ステンレス
板と共に融着する。冷却後、押し付は用装置４を取り去
っても、ステンレス板ははがれることはない。When the nickel foil is sandwiched on the inner surface of the stainless steel pipe and heated at 700° C. for about one hour with the stainless steel plate closely attached, the nickel foil is fused together with the inner surface of the pipe and the stainless steel plate. After cooling, even if the pressing device 4 is removed, the stainless steel plate will not peel off.
第１図は本発明の詳細な説明する構造の断面図である。
■・・・パイプ ２・・・ステンレス板３・・・ニッケ
ル箔 ４・・・押しつけ装置代理人 弁理士 則 近
憲 佑（ほか１名）第１図FIG. 1 is a cross-sectional view of a detailed structure of the present invention. ■... Pipe 2... Stainless steel plate 3... Nickel foil 4... Pressing device agent Patent attorney Nori Chika
Kensuke (and 1 other person) Figure 1
Claims (1)
レスもしくはニッケル含有合金からなる機器・配管等の
表面を薄い金属板でライニングする方法において、前記
機器・配管等の材料表面とライニングする板との間にニ
ッケル箔をはさみ、おしつけて加熱し融着すること′ｔ
−Ｉ￥Ｉ徴とする金属材料表面のライニング方法。In a method of lining the surface of equipment, piping, etc. made of stainless steel or nickel-containing alloy with a thin metal plate, which is used in a place contaminated with radioactive substances, there is a Sandwich the nickel foil in between, heat and fuse.
- A method for lining the surface of a metal material with I\I characteristics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16743983A JPS6061185A (en) | 1983-09-13 | 1983-09-13 | Lining method of metallic material surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16743983A JPS6061185A (en) | 1983-09-13 | 1983-09-13 | Lining method of metallic material surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6061185A true JPS6061185A (en) | 1985-04-08 |
Family
ID=15849725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16743983A Pending JPS6061185A (en) | 1983-09-13 | 1983-09-13 | Lining method of metallic material surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6061185A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5368223A (en) * | 1993-05-06 | 1994-11-29 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Pipe welding process using a metallic insert for improved corrosion resistance of the welded zone |
| JP2010060560A (en) * | 2008-09-03 | 2010-03-18 | Ge-Hitachi Nuclear Energy Americas Llc | Method of protecting nuclear reactor component from contamination |
| US10847273B2 (en) | 2014-01-17 | 2020-11-24 | Ge-Hitachi Nuclear Energy Americas Llc | Steam separator and nuclear boiling water reactor including the same |
-
1983
- 1983-09-13 JP JP16743983A patent/JPS6061185A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5368223A (en) * | 1993-05-06 | 1994-11-29 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Pipe welding process using a metallic insert for improved corrosion resistance of the welded zone |
| JP2010060560A (en) * | 2008-09-03 | 2010-03-18 | Ge-Hitachi Nuclear Energy Americas Llc | Method of protecting nuclear reactor component from contamination |
| US10847273B2 (en) | 2014-01-17 | 2020-11-24 | Ge-Hitachi Nuclear Energy Americas Llc | Steam separator and nuclear boiling water reactor including the same |
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