CN100586638C - Manufacture technique for thermonuclear reactor envelope containing flow-passage parts - Google Patents
Manufacture technique for thermonuclear reactor envelope containing flow-passage parts Download PDFInfo
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- CN100586638C CN100586638C CN200810021143A CN200810021143A CN100586638C CN 100586638 C CN100586638 C CN 100586638C CN 200810021143 A CN200810021143 A CN 200810021143A CN 200810021143 A CN200810021143 A CN 200810021143A CN 100586638 C CN100586638 C CN 100586638C
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Abstract
The invention discloses a production process applicable to runner-containing parts in a fusion reactor blanket. The production process includes the steps: first, a plate and a runner-containing rectangular tube are manufactured according to the design and undergo precision surface working, the roughness Ra is less than 6.3Mum; second, the runner-containing parts are cleaned and decontaminated andthen heated in vacuum for degassing; third, the runner-containing parts are vacuumized in an electron beam welding machine and the periphery of the surface to be welded is hermetically welded; and then the runner-containing parts are put into a hot isostatic pressing furnace for forming by hot isostatic pressing diffusion welding; finally, bending forming, heat treatment and machining, and the like, are performed. By adopting the production process; the runner-containing parts manufactured by the production process have reliable and uniform comprehensive performance without the weak performance zones of the heat affected zone, and the like, resulting from the fusion welding process or the defects such as element segregation and air vent, and the like, existing in the similar casting parts,thereby, the production process is particularly applicable to the production of the runner-containing part with the fusion reactor blanket under the condition of intense neutron radiation.
Description
Technical field
The present invention relates to the method for manufacturing technology of flow-passage containing parts in a kind of suitable fusion reactor covering.
Background technology
The fusion reactor covering is one of core component in the fusion reactor, and major function is to be that available energy is bred tritium simultaneously to keep fusion reaction with fusion particle (neutron and α ion) power conversion.The fusion reactor covering is near fusionplasma, and environment is harsh, and its high temperature, the sub-irradiation of persistent erection and complex stress environment etc. have proposed great challenge to the development work of structural material and covering.Low activation ferrite/martensite steel (RAFM steel) has high thermal, advantageous characteristic such as anti-void swelling preferably, and has comparatively ripe industrial foundation, becomes the first-selected cladding structure material of following fusion demonstration reactor and first commercial fusion power plant.
Fusion reactor covering manufacturing technology is one of core of fusion reactor technical development.Wherein the covering first wall is directly towards high-temperature plasma, its service condition is very harsh: bear high energy (14MeV) high flux fusion neutron irradiation, from the corrosion of α ion high density energy deposition, multiplication agent and the cooling medium of plasma etc., this performance to first wall has proposed high requirement.And contain many group rectangles or circular coolant flow passages, complex structures in the design of first wall (example as shown in Figure 1) and coldplate as required.Processing method with routine can't produce precision and the satisfactory flow-passage containing parts of the equal energy of performance, though for example adopt casting method can produce the parts of this shape, segregation, shrinkage cavity and the cast component internal crystallization tissue that is difficult to overcome in the casting can't satisfy the service demand under harsh conditions like this; Have very long weld seam if adopt conventional melt welding method to prepare first wall, difficult quality control, and also the performance of commissure and substrate performance have than big-difference, is difficult to satisfy the operation demand of first wall severe rugged environment.
Summary of the invention
For overcoming the shortcoming of methods such as molten solder and casting, this method provides a kind of heat iso-hydrostatic diffusion welding connection to make the process of flow-passage containing parts such as fusion reactor covering first wall and coldplate.It is at high temperature to pass through gas (as Ar or N that heat iso-hydrostatic diffusion welding connects main process
2) face to be welded after the vacuum seal is applied high pressure in opposite directions, make uneven generation yield deformation and creep on two solder side microcosmic, be recrystallized thereby combine closely and the atom diffusion takes place and organize, material finally is closely linked.Adopt the parts weld that this method prepares performance can near in addition reach the performance level of matrix material, therefore heat iso-hydrostatic diffusion welding connects the preparation that method is well suited for being used for flow-passage containing parts such as fusion reactor covering first wall and coldplate, just adopt to contain runner rectangle tubing and sheet material and carry out heat iso-hydrostatic diffusion welding and be connected together in succession and make first wall and coldplate flat sheet mould, adopt suitable bending process to make final first wall and coldplate product then.This process also is applicable to the similar runner complex component that contains that other have specific (special) requirements.
Technical solution of the present invention is as follows:
Be applicable to the manufacturing process of fusion reactor covering flow-passage containing parts, it is characterized in that mainly may further comprise the steps:
1) processing is inboard for required flow channel shape, the outside are the pipeline and the certain thickness flat board of rectangle, the fine finishining of the line pipe of going forward side by side road outer surface and dull and stereotyped single face, and roughness Ra is lower than 6.3 μ m, must not adopt the cutting fluid of elements such as containing S, P, Cl during machined;
2) sheet material and tubing are carried out decontamination treatment measures such as ultrasonic wave cleaning;
3) H of surface absorption is removed in the heating of carrying out in pipeline and the planar vacuum stove
2O, CO
2Deng gas, vacuum need be better than 1Pa;
4) carry out rectangular duct and dull and stereotyped assembling, and place the electron-beam welder vacuum chamber removing the residual gas (vacuum is better than 10Pa) between the solder side, and carry out to be welded peripheral seal of electron beam welding;
5) insert hot isostatic press and carry out heat iso-hydrostatic diffusion welding and connect, be shaped to and contain the runner flat board member, the high temperature insostatic pressing (HIP) parameter is 50～200MPa/1000～1150 ℃/1～6h;
Carry out further heat treatment, flexural deformation and machining surface processing then as required.
Its heat iso-hydrostatic diffusion welding connects preceding to be welded Surface Machining requirement, and the machined roughness need reach Ra＜6.3 μ m, must not adopt element cutting fluids such as containing S, P, Cl during machined.
Its heat iso-hydrostatic diffusion welding connects the processing mode in early stage, carries out the heating in vacuum degassing processing after treating the solder side cleaning, and vacuum is better than 10Pa, to prevent surface oxidation and to remove the gas that the surface absorbs.
Its heat iso-hydrostatic diffusion welding connects sealing means and adopts electron-beam welder to carry out the seal welding of to be welded periphery, and welding chamber, initial vacuum vacuum is better than 10Pa, so that the residual gas between to be welded is few as far as possible.
To be welded Surface Machining requires the machined roughness need reach Ra＜6.3 μ m among the present invention, must not adopt the cutting fluid of elements such as containing S, P, Cl during machined, can to be welded keep good cleannes, to reduce the field trash that on weld interface, produces the infringement performance as far as possible; Each part of parts adopts the heating in vacuum degassing processing, vacuum is better than 10Pa, to prevent surface oxidation and to remove the gases such as H2O, CO2 of surface absorption, and vacuum is better than 10Pa when adopting electron-bombardment welding to tap into capable peripheral solder, can obtain the reliable vacuum seal environment of high-quality like this, make heat iso-hydrostatic diffusion welding obtain weld quality height, can reach or near the substrate performance level.
Description of drawings
Fig. 1 is first wall and cross section of fluid channel figure in the plumbous test of the liquid lithium of the present invention covering modular design.
Fig. 2 is the plumbous fusion reactor covering of liquid lithium of the present invention first wall manufacturing flow chart.
The specific embodiment
Be that example further specifies with the processing and manufacturing of lithium lead test blanket module fusion reactor covering first wall now.
Adopt Chinese low activation martensitic steel (CLAM) steel as structural material in the plumbous fusion reactor blanket design of the liquid lithium of China.Concrete manufacturing step such as Fig. 2, and be described in detail as follows:
1) make CLAM steel board and rectangular duct, and adopt grinding machine or milling machine to carry out precision surface processing, surface roughness reaches Ra＜6.3 μ m;
2) CLAM steel board and rectangular duct are carried out ultrasonic wave cleaning (solution is acetone and alcohol mixed solution) to carry out the decontamination processing;
3) carry out 300～1000 ℃ of vacuum degassings and handle, vacuum requires below the 1Pa, to remove the H that is adsorbed on CLAM surface and top layer absorption and storage
2O, O
2Deng gas, be kept at after the processing in cleaning drying, gas shield or the vacuum environment;
4) CLAM steel board and rectangular duct are assembled, and in the welding of managing in vacuum electron beam welder with to be welded periphery of plate, vacuum is better than 1Pa during welding, to build the high quality vacuum sealed environment;
5) carry out heat iso-hydrostatic diffusion welding in the high temperature insostatic pressing (HIP) stove and connect, the high temperature insostatic pressing (HIP) parameter is 1000～1150 ℃/100～150MPa/2～6h.
6) will contain runner plate and heat and bend to " U " type, and heat-treat, carry out necessary machined then to recover material property.
The first wall component capabilities homogeneous that adopts this technical process to make, reliably, there are not performance weakening regions such as melting connection heat affected area, there are not defectives such as the element segregation of cast component and pore yet, wherein the weld hot strength can reach the base material level, and impact strength also can reach more than 50% of base material.First wall behavior under the neutron irradiation condition of adopting this technical process to make in addition is the same with base material, can satisfy the performance requirement in the fusion reactor covering phase in longevity fully.
Claims (4)
1. manufacturing process that is applicable to fusion reactor covering flow-passage containing parts is characterized in that mainly may further comprise the steps:
1) processing is inboard for required flow channel shape, the outside are the pipeline and the certain thickness flat board of rectangle, the fine finishining of the line pipe of going forward side by side road outer surface and dull and stereotyped single face, and roughness Ra is lower than 6.3 μ m, must not adopt the cutting fluid that contains S, P, Cl element during machined;
2) flat board and pipeline are carried out ultrasonic wave cleaning decontamination treatment measures;
3) H of surface absorption is removed in the heating of carrying out in pipeline and the planar vacuum stove
2O, CO
2Gas, vacuum need be better than 1Pa;
4) carry out rectangular duct and dull and stereotyped assembling, and place the electron-beam welder vacuum chamber to remove the residual gas between the solder side, vacuum is better than 10Pa, and carries out to be welded peripheral seal of electron beam welding;
5) insert hot isostatic press and carry out heat iso-hydrostatic diffusion welding and connect, be shaped to and contain the runner flat board member, the high temperature insostatic pressing (HIP) parameter is: 50～200MPa, 1000～1150 ℃, 1～6h;
Carry out further heat treatment, flexural deformation and machining surface processing then as required.
2. manufacturing process according to claim 1 is characterized in that its heat iso-hydrostatic diffusion welding connects preceding to be welded Surface Machining requirement, and the machined roughness need reach Ra＜6.3 μ m, must not adopt during machined to contain S, P, Cl element cutting fluid.
3. manufacturing process according to claim 1, it is characterized in that its heat iso-hydrostatic diffusion welding connects the processing mode in early stage, carry out the heating in vacuum degassing processing after treating the solder side cleaning, vacuum is better than 10Pa, to prevent surface oxidation and to remove the gas that the surface absorbs.
4. manufacturing process according to claim 1, it is characterized in that its heat iso-hydrostatic diffusion welding connects sealing means and adopts electron-beam welder to carry out the seal welding of to be welded periphery, welding chamber, initial vacuum vacuum is better than 10Pa, so that the residual gas between to be welded is few as far as possible.
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| CN200810021143A CN100586638C (en) | 2008-07-25 | 2008-07-25 | Manufacture technique for thermonuclear reactor envelope containing flow-passage parts |
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| CN200810021143A CN100586638C (en) | 2008-07-25 | 2008-07-25 | Manufacture technique for thermonuclear reactor envelope containing flow-passage parts |
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| CN100586638C true CN100586638C (en) | 2010-02-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098257A (en) * | 2016-11-25 | 2018-06-01 | 核工业西南物理研究院 | A kind of processing method of thermonuclear fusion heap enhancing thermic load the first wall finger component |
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| CN102294577B (en) * | 2011-08-29 | 2013-04-24 | 中国科学院合肥物质科学研究院 | Method for preparing part internally containing non-linear axis runner under neutron irradiation |
| CN102500910B (en) * | 2011-11-04 | 2014-12-24 | 中国航空工业集团公司北京航空材料研究院 | Cladless seal welding method for hot isostatic pressing welding |
| CN103077750B (en) * | 2012-12-31 | 2015-03-04 | 中国科学院合肥物质科学研究院 | Fusion reactor liquid tritium breeder cladding module for realizing remote replacement by using single layer guide tube |
| CN104400203B (en) * | 2014-10-09 | 2016-08-24 | 中国科学院合肥物质科学研究院 | A kind of electro-beam welding process being applicable to martensite steel high density runner encapsulated moulding |
| CN104690418B (en) * | 2015-02-13 | 2016-08-31 | 合肥工业大学 | Covering the first wall positive and negative Compound Extrusion of isothermal and vacuum diffusion welding composite manufacturing technology |
| CN105234636B (en) * | 2015-11-05 | 2018-01-05 | 四川明日宇航工业有限责任公司 | Stainless steel ring forging welding procedure |
| CN105478991B (en) * | 2015-12-30 | 2017-11-03 | 中国科学院合肥物质科学研究院 | A kind of fusion reactor blanket heat-resistant part preparation method containing embedded runner |
| CN107755911A (en) * | 2017-09-11 | 2018-03-06 | 中国科学院合肥物质科学研究院 | A kind of method for oxide dispersion intensifying steel Solid-phase welding |
| CN109972048B (en) * | 2018-05-25 | 2021-03-26 | 中国科学院金属研究所 | FeCrAl alloy and ferrite/martensite heat-resistant steel composite tube for nuclear fuel cladding of nuclear reactor and preparation method thereof |
| CN111185721B (en) * | 2018-11-15 | 2021-11-12 | 核工业西南物理研究院 | Manufacturing method for manufacturing multi-runner straight plate by single-weld welding |
| CN110569613B (en) * | 2019-09-12 | 2020-08-04 | 西安交通大学 | Method applied to fusion reactor cladding accurate engineering design |
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| US5278878A (en) * | 1992-11-13 | 1994-01-11 | Porowski Jan S | Process for reducing tensile welding stresses in a nozzle in a nuclear reactor shell |
| CN101042944A (en) * | 2007-01-29 | 2007-09-26 | 中国科学院等离子体物理研究所 | Method for manufacturing D-shaped intersecting surface ring shaped double wall ultra high vacuum container |
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Patent Citations (2)
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|---|---|---|---|---|
| US5278878A (en) * | 1992-11-13 | 1994-01-11 | Porowski Jan S | Process for reducing tensile welding stresses in a nozzle in a nuclear reactor shell |
| CN101042944A (en) * | 2007-01-29 | 2007-09-26 | 中国科学院等离子体物理研究所 | Method for manufacturing D-shaped intersecting surface ring shaped double wall ultra high vacuum container |
Non-Patent Citations (1)
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| 中国低活化马氏体钢CLAM热等静压扩散焊接初步研究. 李春京，黄群英，吴宜灿，FDS团队.核科学与工程，第27卷第1期. 2007 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098257A (en) * | 2016-11-25 | 2018-06-01 | 核工业西南物理研究院 | A kind of processing method of thermonuclear fusion heap enhancing thermic load the first wall finger component |
| CN108098257B (en) * | 2016-11-25 | 2019-11-22 | 核工业西南物理研究院 | A kind of processing method of thermonuclear fusion heap enhancing the first wall of thermic load finger component |
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Address after: No.181 Gucheng Road, sanshangang Township, Luyang District, Hefei City, Anhui Province Patentee after: INSTITUTE OF PLASMA PHYSICS CHINESE ACADEMY OF SCIENCES Address before: 1126 box 230031, Shushan Lake Road, 350 Hefei Road, Anhui, Hefei Patentee before: INSTITUTE OF PLASMA PHYSICS CHINESE ACADEMY OF SCIENCES |
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Granted publication date: 20100203 Termination date: 20210725 |