CN103157895B - A kind of method of attachment of the different material pipeline for the experiment cladding modular system integration - Google Patents
A kind of method of attachment of the different material pipeline for the experiment cladding modular system integration Download PDFInfo
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- CN103157895B CN103157895B CN201110408508.1A CN201110408508A CN103157895B CN 103157895 B CN103157895 B CN 103157895B CN 201110408508 A CN201110408508 A CN 201110408508A CN 103157895 B CN103157895 B CN 103157895B
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Abstract
The present invention relates to the method for attachment of a kind of different material pipeline, the different material pipe connecting method that the concrete openly pipeline that one is used between experiment cladding modular (TBM) body solving International Thermal-Nuclear Experimental Reactor (ITER) with its subsystem (helium cooling system, tritium extraction system) is connected, it comprises the following steps: (1) prepares nickel alloy spherical powder and austenitic steel spherical powder; (2) in the martensite steel pipeline opening of experiment cladding modular back plate side, transit joint is prepared; Described transit joint nickel alloy spherical powder described in step (1) and austenitic steel spherical powder, transit joint is made up of nickel alloy layer, nickel alloy and the composite bed of austenitic steel, austenite steel layer; (3) the austenite steel layer of transit joint is welded with the austenitic steel connecting tube of experiment cladding modular subsystem, namely achieves the connection of different material pipeline. Gai Fangfaxiejueliaoshi body steel does not mate, with the thermal coefficient of expansion of austenitic steel, the thermal stress issues brought.
Description
Technical field
The present invention relates to the method for attachment of a kind of different material pipeline, be specifically related to a kind of for solving the different material pipe connecting method that the pipeline between experiment cladding modular (TBM) body of International Thermal-Nuclear Experimental Reactor (ITER) and its subsystem (helium cooling system, tritium extraction system) is connected.
Background technology
International Thermal-Nuclear Experimental Reactor (ITER) plan is an international experimental provision designed to verify the feasibility of full-scale controllable nuclear fusion technology in planning construction. Experiment cladding modular (TBM) is the parts that each member state of ITER International Partnership develops, carries out on ITER physics and engineering experiment voluntarily, is used for simulating and testing the technology relevant to following fusion reactor blanket. According to ITER associated documents requirement, ITER-TBM plans purpose and is in that tritium multiplication technique and the energy scavenging techniques of inspection and the following HCSB-DEMO of checking. And ITER-TBM plan to be tested be a set of TBM system (TBMS) being made up of several parts such as producing tritium experiment cladding modular body (TBM), Helium cooling system (HCS) and relevant coolant purification system, tritium extraction system (TES) and relevant Tritium measure system, shielding slab, tele-control system, wherein HCS and TES will have direct pipeline to be connected with TBM module body. In ITER device, experiment cladding modular system is by the face of the condition of high-energy high flux neutron and high heat load, under this extreme operating condition, how can guarantee that the secure connection of pipeline, connection effect are not affected by environment and it is properly functioning not affect ITER device, there is very great challenge.
According to current TBMS design, the conduit component of helium cooling system HCS and tritium extraction system TES mainly selects austenitic stainless steel (AISI316LN, or the material of China's equivalence model), and, as structural material, designing requirement has substantial margin of safety. This is according to for the ease of installing and replacing CNHCCBTBM experiment cladding modular, adopts the selection made being thought of as design basis of standardized remote cutting and welding operation program again. Additionally tritium extraction system selects 316LN steel also to make to consider the low tritium-permeation rate of 316LN steel as structural material. And TBM module body is because will close to the service condition in HCSB-DEMO DEMO, the structural material of its selection must is fulfilled for low activity, structure stability under low neutron irradiation swelling rate and high temperature, the TBM major part of all seven member states of ITER all selects low activity ferrite/martensite steel (RAFM) as the structural material of TBM module body. Therefore, in the ITERTBM system integration, need to solve the connectivity problem of RAFM and 316LN.
RAFM steel is martensitic phase tissue, and 316LN is austenite phase tissue, and two kinds of steel directly weld exists Railway Project: the difference of thermal expansion coefficients of (1) two kind of steel is relatively big, the thermal stress issues brought; (2) both carbon content differences cause Carbon diffusion, RAFM side to there will be decarburization, and carbon enrichment occurs in 316LN side, affects the mechanical property of joint; (3) welding of RAFM steel needs to carry out preheating and Post isothermal treatment, and TBM module body is connected in the small space needed in load ITER scene windows units to complete with the pipeline of subsystem, and owing to space limits in the windows units at ITER scene, be only capable of carrying out simple welding operation.
Summary of the invention
For solving the tubing connectivity problem of the martensite steel in the experiment cladding modular system integration and austenitic steel, the invention provides the method for attachment of a kind of different material pipeline for the experiment cladding modular system integration, Gai Fangfaxiejueliaoshi body steel does not mate, with the thermal coefficient of expansion of austenitic steel, the thermal stress issues brought.
Realizing the technical scheme of the object of the invention: the method for attachment of a kind of different material pipeline for the experiment cladding modular system integration, it comprises the following steps:
(1) nickel alloy spherical powder and austenitic steel spherical powder are prepared;
(2) in the martensite steel pipeline opening of experiment cladding modular back plate side, transit joint is prepared;
Described transit joint nickel alloy spherical powder described in step (1) and austenitic steel spherical powder, transit joint is made up of nickel alloy layer, nickel alloy and the composite bed of austenitic steel, austenite steel layer;
(3) the austenite steel layer of transit joint is welded with the austenitic steel connecting tube of experiment cladding modular subsystem, namely achieves the connection of different material pipeline.
The method preparing nickel alloy spherical powder and austenitic steel spherical powder in described step (1) is specific as follows: prepared by nickel alloy forging rod or austenitic steel forging rod using plasma rotary electrode method globulate powder.
Described nickel alloy spherical powder and austenitic steel spherical powder are dried, to remove the moisture in powder.
Described step (2) prepare specifically comprising the following steps that of transit joint
(2.1) nickel alloy spherical powder is deposited on the surface of martensite steel pipeline opening;
(2.2) after the nickel alloy layer thickness on martensite steel pipeline opening surface reaches requirement, start to deposit austenitic steel spherical powder, nickel alloy spherical powder and austenitic steel spherical powder formation of deposits metal composite layer;
(2.3) after metal composite layer thickness reaches requirement, deposition nickel alloy spherical powder is stopped;
(2.4) continue deposition austenitic steel spherical powder, after austenitic steel layer thickness reaches requirement, stop deposition austenitic steel spherical powder, namely complete the preparation of transit joint.
Between described step (2.1), first martensite steel pipeline opening is carried out surface treatment.
Described surface treatment includes first polishing with sand paper, then cleaning up with organic solvent.
The described process preparing transit joint is in the chamber of full argon shield, and described deposition process is to adopt laser forming method.
The invention have the benefit that (1) by forming a joint with transition structure on martensite RAFM steel conduit port, welds the same material that martensite RAFM steel is changed between austenitic steel with the different material welding problem of austenite 316LN; (2) adopt nickel alloy to solve martensite steel as intermediate layer and do not mate, with the thermal coefficient of expansion of austenitic steel, the thermal stress issues brought; (3) solve, as intermediate layer, the problem that martensite steel brings the rich carbon of weld seam both sides partial decarburization and local to affect junction mechanical property with austenitic steel owing to carbon content difference is big with nickel alloy; (4) by prefabricated transitional joint, the technology difficulty carrying out pipeline welding at ITER scene is reduced; (5) transit joint adopts laser solid forming technology successively to grow, it is possible to achieve seamlessly transitting of material composition, it is ensured that the mechanical property of transit joint.
Accompanying drawing explanation
Fig. 1 is the schematic diagram preparing transit joint at RAFM steel conduit discharge surface of the method for attachment of a kind of different material pipeline for the experiment cladding modular system integration provided by the present invention.
In figure: 1. the first powder feeding machine, 2. the second powder feeding machine, 3. laser beam, 4. experiment cladding modular back plate, the turnover mouth of pipe that 5. experiment cladding modular body is connected with helium cooling system, the turnover mouth of pipe that 6. experiment cladding modular body is connected with tritium extraction system.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
As it is shown in figure 1, the method for attachment of a kind of different material pipeline for the experiment cladding modular system integration, comprise the following steps:
(1) prepare nickel alloy spherical powder and austenitic steel spherical powder, and nickel alloy spherical powder is loaded in the first powder feeding machine 1, austenitic steel spherical powder is loaded in the second powder feeding machine 2
Inconel718 selected by described nickel alloy. The nickel alloy forging rod of Inconel718 (GB GH4169) will be numbered, diameter 60-65mm, long 400-800mm, using plasma rotary electrode method prepares the spherical powder of the Inconel718 that sphere diameter is 50-200 micron, and is loaded by Inconel718 spherical powder in the first powder feeding machine 1.
The preferred parameter of Inconel718 nickel alloy forging rod is diameter 60mm, long 400mm, and the sphere diameter of the Inconel718 spherical powder prepared is 50 microns. Or the preferred parameter of Inconel718 nickel alloy forging rod is diameter 62mm, long 600mm, and the sphere diameter of the Inconel718 spherical powder prepared is 100 microns. Or the preferred parameter of Inconel718 nickel alloy forging rod is diameter 65mm, long 800mm, and the sphere diameter of the Inconel718 spherical powder prepared is 200 microns.
316LN super-low carbon stainless steel forging rod selected by described austenitic steel, diameter 60-65mm, long 400-800mm, using plasma rotary electrode method prepares the 316LN steel ball shape powder that sphere diameter is 50-200 micron, and is loaded in the second powder feeding machine 2 by 16LN steel ball shape powder.
The preferred parameter of 316LN super-low carbon stainless steel forging rod is diameter 60mm, long 400mm, and the sphere diameter of the 316LN steel ball shape powder prepared is 50 microns. Or the preferred parameter of 316LN super-low carbon stainless steel forging rod is diameter 62mm, long 600mm, and the sphere diameter of the 316LN steel ball shape powder prepared is 100 microns. Or the preferred parameter of 316LN super-low carbon stainless steel forging rod is diameter 65mm, long 800mm, and the sphere diameter of the 316LN steel ball shape powder prepared is 200 microns.
In order to remove the moisture in powder, nickel alloy spherical powder and austenitic steel spherical powder dry 24 hours in a vacuum chamber.
(2) in four martensite steel pipeline opening of experiment cladding modular back plate 4 side, transit joint is prepared;
The preparation of transit joint completes on LSF-II laser forming system, and this system comprises PRC2000CO2 laser instrument, atmosphere control system, powder feed system and nozzle etc.
(2.1) four martensite RAFM steel pipe road junctions of experiment cladding modular back plate 4 side are carried out surface treatment
As it is shown in figure 1, four martensite RAFM steel pipe road junctions include the turnover mouth of pipe 6 that turnover 5, two experiment cladding modular bodies of the mouth of pipe that two experiment cladding modular bodies are connected are connected with tritium extraction system with helium cooling system.
Above-mentioned surface treatment includes first polishing with sand paper, then cleaning up with organic solvent.
(2.2) the experiment cladding modular back plate 4 after carrying out surface treatment is sent into the chamber of the full argon shield of LSF-II laser forming system;
(2.3) according to the two-dimensional silhouette of martensite steel pipeline opening, start the first powder feeding machine 1 equipped with nickel alloy spherical powder, the nickel alloy spherical powder in the first powder feeding machine 1 is respectively deposited on the surface of four martensite steel pipeline opening;
(2.4) after the nickel alloy layer thickness on martensite steel pipeline opening surface reaches requirement, start the second powder feeding machine 2 equipped with austenitic steel spherical powder, continue deposition nickel alloy spherical powder and austenitic steel spherical powder forms metal composite layer;
(2.5) after composite bed thickness reaches requirement, close in the first powder feeding machine 1, namely stop deposition nickel alloy spherical powder;
(2.6) continue deposition austenitic steel spherical powder, after austenitic steel layer thickness reaches requirement, close the second powder feeding machine 2, namely stop deposition austenitic steel spherical powder; Namely the preparation of transit joint is completed.
Transit joint includes the composite bed of nickel alloy layer, nickel alloy and austenitic steel, austenite steel layer
In the metal composite layer that nickel alloy spherical powder and austenitic steel spherical powder are formed, the mol ratio of nickel alloy and austenitic steel is 1: 1, and both are uniformly mixed.
Nickel alloy layer and Inconel718 layer thickness reach 2mm and namely reach requirement. The metal composite layer of nickel alloy spherical powder and austenitic steel spherical powder, is the metal composite layer of nickel alloy Inconel718 and austenitic steel 316LN, namely reaches requirement when this metal composite layer thickness reaches 2mm; Inconel718 and the SS316LN-IG that this metal composite layer adopts mol ratio to be 1: 1 is uniformly mixed. Austenitic steel 316LN layer thickness reaches 10mm and namely reaches requirement.
Above-mentioned deposition process all adopts laser forming method, and the design parameter of laser forming is as follows: laser energy 2000W, lasing beam diameter 3mm, laser scan rate 5mm/s, powder feeding rate 10g/min.
(3) the austenite steel layer of transit joint is welded with the austenitic steel connecting tube of the austenitic steel connecting tube of helium cooling system or tritium extraction system
The connecting tube of helium cooling system and experiment cladding modular body is austenitic steel 316LN, and the connecting tube of the austenitic steel of tritium extraction system and experiment cladding modular body is also austenitic steel 316LN.
The austenitic steel 316LN end of transit joint and the 316LN pipeline welding of helium cooling system or tritium extraction system, adopt argon arc welding technology herein.
The low activity martensite steel RAFM that the present invention is previously mentioned is elementary composition by Fe, Cr, V, Mn, W and Ta, each elemental composition mass percent is: Fe accounts for more than 86%, Cr is between 7.5-9.5%, V is between 0.1-0.3%, W is between 1.0-2.0%, and Mn is between 0.1-0.6%, and Ta is between 0.01-0.3%, domestic optional model has CLF-1 and CLAM, and external optional model has Eurofer and F82H.
Above in conjunction with specific embodiment, the present invention is explained in detail, but the present invention is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, it is also possible under the premise without departing from present inventive concept, make various change. The content not being described in detail in the present invention all can adopt prior art.
Claims (4)
1. the method for attachment for the different material pipeline of the experiment cladding modular system integration, it is characterised in that: it comprises the following steps:
(1) nickel alloy spherical powder and austenitic steel spherical powder are prepared;
(2) in the martensite steel pipeline opening of experiment cladding modular back plate (4) side, transit joint is prepared;
Described transit joint nickel alloy spherical powder described in step (1) and austenitic steel spherical powder are formed, and transit joint is made up of nickel alloy layer, nickel alloy and the composite bed of austenitic steel, austenite steel layer;
(3) the austenite steel layer of transit joint is welded with the austenitic steel connecting tube of experiment cladding modular subsystem, namely achieves the connection of different material pipeline;
The method preparing nickel alloy spherical powder and austenitic steel spherical powder in described step (1) is specific as follows: prepared by nickel alloy forging rod or austenitic steel forging rod using plasma rotary electrode method globulate powder;
Described nickel alloy spherical powder and austenitic steel spherical powder are dried, to remove the moisture in powder;
Described step (2) prepare specifically comprising the following steps that of transit joint
(2.1) nickel alloy spherical powder is deposited on the surface of martensite steel pipeline opening;
(2.2) after the nickel alloy layer thickness on martensite steel pipeline opening surface reaches requirement, start to deposit austenitic steel spherical powder, nickel alloy spherical powder and austenitic steel spherical powder formation of deposits metal composite layer;
(2.3) after metal composite layer thickness reaches requirement, deposition nickel alloy spherical powder is stopped;
(2.4) continue deposition austenitic steel spherical powder, after austenitic steel layer thickness reaches requirement, stop deposition austenitic steel spherical powder, namely complete the preparation of transit joint.
2. the method for attachment of a kind of different material pipeline for the experiment cladding modular system integration according to claim 1, it is characterised in that: before described step (2.1), first martensite steel pipeline opening is carried out surface treatment.
3. the method for attachment of a kind of different material pipeline for the experiment cladding modular system integration according to claim 2, it is characterised in that: described surface treatment includes first polishing with sand paper, then cleaning up with organic solvent.
4. the method for attachment of a kind of different material pipeline for the experiment cladding modular system integration according to claim 3, it is characterised in that: the described process preparing transit joint is in the chamber of full argon shield, and deposition process is to adopt laser forming method.
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| CN111347131A (en) * | 2018-12-20 | 2020-06-30 | 核工业西南物理研究院 | CLF-1 and 316L dissimilar steel TIG welding method |
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| CN101368239A (en) * | 2007-08-17 | 2009-02-18 | 北京有色金属研究总院 | Nickel base alloy and stainless steel valve with nickel base alloy layer sealing surface, and production method thereof |
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| CN101368239A (en) * | 2007-08-17 | 2009-02-18 | 北京有色金属研究总院 | Nickel base alloy and stainless steel valve with nickel base alloy layer sealing surface, and production method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 2Cr13不锈钢表面激光熔覆Ni合金层的研究;段慧玲等;《黑龙江石油化工》;19991031;第10卷;第30-32页 * |
| 激光快速成形316L不锈钢/镍基合金/Ti6A14V梯度材料;席明哲等;《金属学报》;20080731;第44卷(第7期);第827页左栏第20行至右栏第8行 * |
| 激光熔覆Ni/Cr3C2复合涂层的冲蚀磨损性能;段慧玲等;《油气田地面工程》;19990228;第18卷(第1期);第59-62页 * |
| 热处理对激光熔覆Ni 合金层的组织及冲蚀磨损性能的影响;张大伟等;《金属热处理学报》;19990331;第20卷(第1期);第40-46页 * |
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