JPS6316288A - Manufacture of heat-receiving plate for nuclear fusion device - Google Patents
Manufacture of heat-receiving plate for nuclear fusion deviceInfo
- Publication number
- JPS6316288A JPS6316288A JP61159784A JP15978486A JPS6316288A JP S6316288 A JPS6316288 A JP S6316288A JP 61159784 A JP61159784 A JP 61159784A JP 15978486 A JP15978486 A JP 15978486A JP S6316288 A JPS6316288 A JP S6316288A
- Authority
- JP
- Japan
- Prior art keywords
- receiving plate
- plasma
- heat
- heat receiving
- surface material
- 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
- 230000004927 fusion Effects 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000000463 material Substances 0.000 claims description 32
- 238000005219 brazing Methods 0.000 claims description 12
- 239000002826 coolant Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 238000005304 joining Methods 0.000 claims description 3
- 230000035882 stress Effects 0.000 description 16
- 238000009826 distribution Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- Y02E30/10—Nuclear fusion reactors
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［発明の目的〕
（産業上の利用分野）
本発明は核融合装置において、プラズマからの熱負荷や
粒子負荷を受ける第、１壁、ダイバータ板、リミタ板等
の受熱板の製造方法に関する。[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention relates to a nuclear fusion device that receives heat from the first wall, diverter plate, limiter plate, etc. that receives heat load and particle load from plasma. This invention relates to a method for manufacturing a board.
（従来の技術）
核融合装置の受熱板には、プラズマから大きな熱負荷と
粒子負荷がかかる。プラズマからの入射粒子によるスパ
ッタリングで受熱板は損耗するため、受熱板材料はスパ
ッタリング率の小さい材料、すなわち、表面損耗量の少
ない材料とする必要がある。またプラズマからの高熱負
荷を除熱するために、受熱板には冷却装置が必要である
。(Prior Art) The heat receiving plate of a nuclear fusion device is subjected to a large heat load and particle load from plasma. Since the heat receiving plate is worn out by sputtering due to incident particles from the plasma, the material of the heat receiving plate needs to be a material with a low sputtering rate, that is, a material with a small amount of surface wear. Additionally, the heat receiving plate requires a cooling device to remove the high heat load from the plasma.
このため従来の受熱板（１）は第３図に示すように、銅
等の高熱伝導率の冷却材（４）上に高融点で低スパツタ
リング率の材料からなるプラズマ側表面材（３）を冶金
的に接合した構造となっている。For this reason, the conventional heat receiving plate (1) has a plasma side surface material (3) made of a material with a high melting point and low sputtering rate on a coolant (4) with high thermal conductivity such as copper, as shown in Figure 3. It has a metallurgically bonded structure.
この種の構造としては、特開昭５９７１５１０８４号公
報で第◆図に示すように給熱性のセラミックス−（５）
゛を冷却材【４）上に緩衝材（６）を介ごて冶金的に接
合しているものがある。また第５図に示すように、プラ
ズマ粒子（２）が金属基材（４）に直接衝突するのを防
止するためにプラズマ側表面材のセラミックス（５）に
段付部（７）を設けているものがある。This type of structure is disclosed in Japanese Patent Application Laid-Open No. 597151084, as shown in Figure ◆.
There are some that are metallurgically joined to the coolant (4) via the buffer material (6). Furthermore, as shown in Fig. 5, a stepped portion (7) is provided on the ceramic (5) of the plasma side surface material to prevent the plasma particles (2) from directly colliding with the metal base material (4). There are some.
（発明が解決しようとする問題点）
第３図のような従来の構造はプラズマ側表面材（３）と
冷却材（４）を冶金的方法（ろう付）により接合してい
る。この種の構造のように線膨張係数が非常に異なる材
料の接合の場合、考えられる破壊形態は二つある。(Problems to be Solved by the Invention) In the conventional structure as shown in FIG. 3, the plasma side surface material (3) and the coolant (4) are joined by a metallurgical method (brazing). When joining materials with very different coefficients of linear expansion, such as in this type of structure, there are two possible failure modes.
一つはろう付接合過程においてろう付温度から常温まで
冷却すると、接合部に生じる熱応力の影響によりプラズ
マ側表面材（３）の側面に第６図に示すような板厚方向
引張応力（８）が生じる。この接合部近傍に発生する最
大引張応力（１１）により脆性破壊が生じる。One is that when cooled from the brazing temperature to room temperature during the brazing joining process, tensile stress in the plate thickness direction (8 ) occurs. The maximum tensile stress (11) generated in the vicinity of this joint causes brittle fracture.
つぎに考えられる破壊は接合界面の熱応力による界面疲
労破壊である。第６図に示すように、接合界面に生じる
せん断路力（９）、 （１０）のうち、プラズマ側表面
材（３）に生じる最大ぜん断路力（１２）は弾性域内の
応力であるが、冷却材（４）の端部に生じるせん断路力
は降伏応力を越えて塑性領域内と考えられる。The next possible fracture is interface fatigue fracture due to thermal stress at the joint interface. As shown in Fig. 6, among the shear road forces (9) and (10) generated at the bonding interface, the maximum shear road force (12) generated on the plasma side surface material (3) is a stress within the elastic range. The shear path force generated at the end of the coolant (4) exceeds the yield stress and is considered to be in the plastic region.
本発明は、ろう付接合冷却過程においてプラズマ側表面
材側面に生じる破壊を防止し、かつ、サイクリックな熱
負荷に対して長寿命な核融合装置の受熱板を製造する方
法を提供することを目的とする。The present invention aims to provide a method for manufacturing a heat receiving plate for a nuclear fusion device that prevents damage to the side surface of the plasma-side surface material during the brazing joint cooling process and has a long service life against cyclic heat loads. purpose.
（問題点を解決するための手段）
上記目的を達成するために、本発明の受熱板は、ろう付
する前にプラズマ側表面材と冷却材の接合面端部にそれ
ぞれ面取形状の凹部を予め形成しておく構成とする。(Means for Solving the Problems) In order to achieve the above object, the heat receiving plate of the present invention has chamfered recesses at the ends of the joining surfaces of the plasma side surface material and the coolant, respectively, before brazing. The structure is formed in advance.
（作 用）
上記のように、プラズマ側表面材と冷却材の接合部に面
取状凹部を形成しておくと、ロー付冷却過程時に生じる
プラズマ側表面材の側面で接合部近傍に発生する板厚方
向引張応力を低減させ、かつ、接合界面に生じるせん断
路力も低減させる受熱板が得られる。(Function) As described above, if a chamfer-like recess is formed at the joint between the plasma-side surface material and the coolant, chamfer-like recesses can be formed near the joint on the side surface of the plasma-side surface material during the brazing cooling process. A heat receiving plate is obtained that reduces tensile stress in the plate thickness direction and also reduces shear path force generated at the joint interface.
（実施例）
以下本発明の一実施例を第１図によって説明する。タン
グステン等の高融点で低スパツタリング率の材料、Ｓｉ
ｃやグラファイト等の低原子番号材料、および耐熱用セ
ラミックス等が用いられるプラズマ側表面材（３）の接
合端面角部に１７４円形の面取状凹部（１４ａ）を形成
する。また、銅等の高熱伝導車の金属からなる冷却材（
４）の接合端面角部にも上記同形の面取状凹部（１４ｂ
）を形成し、両者を接合する。 （１８）はろう付接合
面である。(Example) An example of the present invention will be described below with reference to FIG. Materials with high melting point and low sputtering rate such as tungsten, Si
A 174-circular chamfered recess (14a) is formed at the corner of the bonding end face of the plasma side surface material (3), which is made of a low atomic number material such as C or graphite, and heat-resistant ceramics. In addition, coolants made of high thermal conductivity car metals such as copper (
4) is also provided with a chamfered recess (14b) of the same shape as above at the corner of the joint end
) and join them together. (18) is the brazed joint surface.
このように構成した受熱板においては、ろう付冷却過程
で接合面に生じる熱応力の影響がプラズマ側表面材（３
）の側面にまでおよぶことを少なくし、プラズマ側表面
材（３）の側面の接合面近傍に生じる最大引張応力（１
１）を低減させることができる。第２図に本実施例によ
る受熱板にプラズマ（２）、からの熱負荷が作用した場
合の各部の応力分布を示している。プラズマ側表面材（
３）に瀞取状凹部（１４ａ）が設置されたことにより、
ブ、ラズマ側表面材（３）の側面上に発生する引張応力
（１５）は端部における応力の解放により低下する。こ
れにより、プラズマ側表面材（３）の側面に発生するク
ラックを防止することができる。In the heat receiving plate configured in this way, the influence of thermal stress generated on the joint surface during the brazing cooling process is caused by the plasma side surface material (3
), and reduce the maximum tensile stress (1
1) can be reduced. FIG. 2 shows the stress distribution at each part when a heat load from plasma (2) is applied to the heat receiving plate according to this embodiment. Plasma side surface material (
3) By installing the handle-shaped recess (14a),
The tensile stress (15) generated on the side surface of the plasma side surface material (3) is reduced by the release of stress at the end. Thereby, it is possible to prevent cracks from occurring on the side surface of the plasma side surface material (3).
また、接合界面に生じる最大せん断路力は接合面積が小
さくなる程減少し、一様な分布に近づく。Furthermore, the maximum shear path force generated at the joint interface decreases as the joint area becomes smaller, and approaches a uniform distribution.
（橋本達成・岡本郁男共著「同相溶接・ろう付」１９７
９年６月産報出版Ｐ１９２参照）本実施例による受熱板
（１３）の接合面積は従来の受熱板（１）に比べて減少
するので、端部に生じる最大ぜん断路力（１６）は減少
する。これにより、接合強度の向上した長寿命の受熱板
を得ることができる。(Co-authored by Tatsuo Hashimoto and Ikuo Okamoto, “In-phase welding and brazing” 197
(Refer to page 192 of Sanpo Publishing, June 1999) Since the joint area of the heat receiving plate (13) according to this embodiment is reduced compared to the conventional heat receiving plate (1), the maximum shear path force (16) generated at the end is reduced. do. Thereby, a long-life heat receiving plate with improved bonding strength can be obtained.
尚、面取状凹部（１４ａ）、 （１４ｂ）は通常みられ
る平面的な面取りでもかなりの効果がある。Incidentally, the chamfer-shaped recesses (14a) and (14b) are quite effective even if they are normally flat chamfers.
以上述べたように、本発明によればろう付冷却過程時の
プラズマ側表面材の側面に生じるクラックを防止し、か
つ、接合強度を向上させ受熱板の寿命を増大させること
ができる。As described above, according to the present invention, it is possible to prevent cracks from occurring on the side surface of the plasma-side surface material during the brazing cooling process, improve the bonding strength, and extend the life of the heat receiving plate.
第１図は本発明の方法の一実施例にて製造した受熱板の
断面図、第２図は第１図の実施例による受熱板に作用す
る応力分布を示す説明図、第３図、第４図および第５図
はそれぞれ異なる従来の受熱板を示す断面図、第６図は
従来の受熱板の断面でプラズマ側表面材の側面に生じる
応力と接合界面に生じる応力分布を示す説明図である。
１・・・従来の受熱板、 ２・・・プラズ
マ、３・・・プラズマ側表面材、 ４・・・冷却
材、８・・・従来例のプラズマ側表面材側面上の板厚方
向引張応力分布曲線、
９・・・従来例のプラズマ側表面材接合界面のせん断路
力分布曲線、
１０・・・従来例の冷却材接合界面のせん断路力分布曲
線、１１・・・最大引張応力、１２・・・最大ぜん断応
力、１３・・・本発明の一実施例の受熱板、１４ａ・・
・面取状凹部（プラズマ側表面材）、１４ｂ・・・面取
状凹部（冷却材）、
１５・・・本発明の一実施例によるプラズマ側表面材側
面上の板厚方向引張応力分布曲線、
１６・・・本発明の一実施例によるプラズマ側表面材接
合界面のせん断路力分布曲線、
１７・・・本発明の一実施例による冷却材接合界面のせ
ん断路力分布曲線、
１８・・・ろう付接合面。FIG. 1 is a sectional view of a heat receiving plate manufactured by an embodiment of the method of the present invention, FIG. 2 is an explanatory diagram showing the stress distribution acting on the heat receiving plate according to the embodiment of FIG. 1, and FIGS. Figures 4 and 5 are cross-sectional views showing different conventional heat-receiving plates, and Figure 6 is an explanatory diagram showing the stress generated on the side surface of the plasma-side surface material and the stress distribution generated at the bonding interface in a cross-section of the conventional heat-receiving plate. be. 1...Conventional heat receiving plate, 2...Plasma, 3...Plasma side surface material, 4...Cooling material, 8...Thickness direction tensile stress on the side surface of plasma side surface material of conventional example Distribution curve, 9... Shear road force distribution curve of the plasma side surface material bonding interface of the conventional example, 10... Shear road force distribution curve of the coolant bonding interface of the conventional example, 11... Maximum tensile stress, 12 ...Maximum shear stress, 13...Heat receiving plate of one embodiment of the present invention, 14a...
- Chamfered recess (plasma side surface material), 14b... Chamfered recess (coolant), 15... Thickness direction tensile stress distribution curve on the side surface of the plasma side surface material according to an embodiment of the present invention , 16... Shear road force distribution curve of the plasma side surface material bonding interface according to an embodiment of the present invention, 17... Shear road force distribution curve of the coolant bond interface according to an embodiment of the present invention, 18...・Brazing joint surface.
Claims (2)
合端部に、それぞれろう付前に予め面取状の凹部を形成
することを特徴とする核融合装置の受熱板の製造方法。(1) A method for manufacturing a heat receiving plate for a nuclear fusion device, characterized in that chamfered recesses are formed in advance at the joining ends of the plasma-side surface material and the coolant to be joined by brazing, respectively, before brazing.
する特許請求の範囲第１項記載の核融合装置の受熱板の
製造方法。(2) The method for manufacturing a heat receiving plate for a nuclear fusion device according to claim 1, wherein the chamfered recess is shaped like a quarter arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61159784A JPS6316288A (en) | 1986-07-09 | 1986-07-09 | Manufacture of heat-receiving plate for nuclear fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61159784A JPS6316288A (en) | 1986-07-09 | 1986-07-09 | Manufacture of heat-receiving plate for nuclear fusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6316288A true JPS6316288A (en) | 1988-01-23 |
Family
ID=15701196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61159784A Pending JPS6316288A (en) | 1986-07-09 | 1986-07-09 | Manufacture of heat-receiving plate for nuclear fusion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6316288A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02309288A (en) * | 1989-05-24 | 1990-12-25 | Hitachi Ltd | Nuclear fusion reactor |
| JP2008518213A (en) * | 2004-10-27 | 2008-05-29 | プランゼー エスエー | Monoblock cooling device components |
-
1986
- 1986-07-09 JP JP61159784A patent/JPS6316288A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02309288A (en) * | 1989-05-24 | 1990-12-25 | Hitachi Ltd | Nuclear fusion reactor |
| JP2008518213A (en) * | 2004-10-27 | 2008-05-29 | プランゼー エスエー | Monoblock cooling device components |
| JP2013167631A (en) * | 2004-10-27 | 2013-08-29 | Plansee Se | Monobloc cooling device component |
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