CN111185686A - Method for in-situ connection of SiC/SiC core cladding tube by adopting Zr alloy end plug - Google Patents
Method for in-situ connection of SiC/SiC core cladding tube by adopting Zr alloy end plug Download PDFInfo
- Publication number
- CN111185686A CN111185686A CN202010027473.6A CN202010027473A CN111185686A CN 111185686 A CN111185686 A CN 111185686A CN 202010027473 A CN202010027473 A CN 202010027473A CN 111185686 A CN111185686 A CN 111185686A
- Authority
- CN
- China
- Prior art keywords
- sic
- cladding tube
- end plug
- alloy end
- cladding
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
Abstract
The invention relates to a method for in-situ connection of a SiC/SiC nuclear cladding tube by adopting Zr alloy end plugs, which combines a zirconium alloy connection technology and a SiC/SiC nuclear cladding connection technology, thereby utilizing the advantages of two materials. The pressureless sintered joint is a diffusion bonding method that can form a good bond without applying an additional load to the sample. The defect that external pressure stress causes defects in the shell in the packaging/connecting process is avoided, and the effect that large stress is not suitable to be applied in the packaging/connecting process is avoided. By implementing a SiC/Zr alloy joint, the use of zirconium alloy end plugs and SiC/SiC core cladding connections can combine the advantages of both materials without changing the existing design of zirconium alloy end plugs and facilitate the application of SiC/SiC core cladding in the nuclear field.
Description
Technical Field
The invention belongs to a port packaging method of a fuel nuclear cladding tube, relates to a method for in-situ connecting a SiC/SiC nuclear cladding tube by adopting a Zr alloy end plug, and particularly relates to a method for rapidly connecting the SiC/SiC nuclear cladding tube and zirconium alloy in situ.
Background
After the first nuclear reactor disaster in fukushima, japan, accident-resistant fuel elements (ATF) became the central focus for safe development of nuclear power, and europe and the united states developed a new generation of cladding material that can replace zirconium alloy. The SiC/SiC composite material is concerned by the excellent performances of low density, high specific strength, high specific modulus, good oxidation resistance, good fatigue creep resistance, insensitivity to cracks, difficult occurrence of catastrophic damage and the like. In addition, the composite material still has good mechanical property and thermal shock resistance under neutron irradiation and high-temperature environment, and particularly after the coolant is lost, the integrity of the cladding tube structure can be still ensured, and the accident resistance is improved. The SiC/SiC composite material has great application prospect in the field of nuclear reactor structural materials and becomes an ideal candidate material for nuclear fuel elements and nuclear reactor control rod cladding.
However, SiC/SiC composite materials have poor processability due to their inherent hardness, making port encapsulation of SiC/SiC core cladding tubes, which is a critical ring in preventing nuclear radiation leakage after filling with fuel, extremely difficult. At present, fang shang wu et al (fang shang wu, wang yuan, cheng fei, zhang li, li xiao qiang, etc. plug and packaging method for packaging end port of SiC/SiC composite nuclear cladding pipe, CN105469839B) adopt glass ceramic sintering method to connect SiC/SiC composite, and this method can complete connection under no pressure, so that it can make structural complex member. However, this method has disadvantages in that the process flow is complicated, and a multi-step process is required; charles a. lewinsohn et al (Charles a. lewinsohn, Russell h. jones, Paolo Colombo, Bruno ricchardi et al. silicon carbide-based materials for joining silicon carbide composite materials for fusion processes) use an organic as a precursor and apply a compressive stress across the joint, and then heat the assembly in an inert atmosphere to pyrolyze the polymer into a ceramic. The advantage of this method is that the mechanical strength of the joint when bonding the ceramic to the ceramic is close to the mechanical strength of the ceramic. Silicon carbide bonds at relatively low temperatures. The mismatch in the coefficient of thermal expansion of the entire joint is reduced compared to other methods. However, the pyrolysis of polymers into ceramics is often accompanied by volume shrinkage, which brings a large amount of pores at the joint and reduces the mechanical properties of the joint; gasse et al (Gasse A, coating-Boyard G, Bourgeois G, coating B.G.et al.Brazing silicon carbide parts to form a ceramic joint-using silicon-carbide-coating sintering composite) connect SiC/SiC composites by brazing, which fills the joint with solder and tests the joint connection by hot-press sintering, which requires good wettability of the solder to the substrate.
(EBW), tungsten arc welding (TIG), and pressure resistance welding. The electron beam welding is to bombard a welding surface in vacuum or non-vacuum by using accelerated and focused electron beams to melt a workpiece to be welded so as to realize welding. TIG is a method of forming a weld by melting metal with an arc between a tungsten electrode and a workpiece. The tungsten electrode is not melted during welding and only acts as an electrode, and the nozzle of the electric welding torch feeds helium or argon to protect the electrode and a molten pool. Pressure resistance welding is a method in which a workpiece is assembled, and then pressure is applied by an electrode, and resistance heat generated by passing current through a contact surface and an adjacent region of a joint is used for welding. However, none of the above methods are suitable for joining SiC/SiC composites.
Disclosure of Invention
Technical problem to be solved
In order to avoid the defects of the prior art, the invention provides a method for in-situ connection of a SiC/SiC nuclear cladding tube by adopting a Zr alloy end plug, and the zirconium alloy connection technology and the SiC/SiC nuclear cladding connection technology are combined, so that the advantages of the two materials are combined.
Technical scheme
A method for in-situ connection of a SiC/SiC core cladding tube by adopting Zr alloy end plugs is characterized in that: the end plug of the SiC/SiC composite material cladding tube is a zirconium alloy end, and the method comprises the following steps:
step 1: putting the SiC composite material cladding tube and the Zr alloy end plug into ethanol, ultrasonically cleaning for 15-30min, and drying in an oven;
step 2: polishing the Ti/Mo encapsulant to 800 meshes by using sand paper, putting the encapsulant into ethanol, ultrasonically cleaning for 15-30min, and then putting the encapsulant into an oven for drying;
and step 3: placing a Ti or Mo encapsulating agent on the outer wall of the SiC/SiC cladding tube, then filling the SiC/SiC composite cladding tube into a Zr alloy end to be plugged at a port to be encapsulated, and cleaning residues in the end plug and the SiC/SiC cladding tube to finish pre-encapsulation;
and 4, step 4: placing the pre-packaged joint in a muffle furnace, heating and sintering at the temperature of 1000-1500 ℃, introducing argon as protective gas, and preserving heat for 20-60 minutes; and finally, cooling the furnace temperature at the speed of 1-5 ℃/min, thereby finishing packaging the Zr alloy end plug in the SiC/SiC core cladding tube.
The Ti or Mo sealant adopts Ti foil/powder or Mo foil/powder.
The diameter of the zirconium alloy end plug is larger than that of the SiC cladding tube or smaller than that of the SiC cladding tube.
Advantageous effects
The method for in-situ connection of the SiC/SiC core cladding tube by adopting the Zr alloy end plug combines the zirconium alloy connection technology and the SiC/SiC core cladding connection technology, thereby utilizing the advantages of the two materials. The pressureless sintered joint is a diffusion bonding method that can form a good bond without applying an additional load to the sample. The defect that external pressure stress causes defects in the shell in the packaging/connecting process is avoided, and the effect that large stress is not suitable to be applied in the packaging/connecting process is avoided. By implementing a SiC/Zr alloy joint, the use of zirconium alloy end plugs and SiC/SiC core cladding connections can combine the advantages of both materials without changing the existing design of zirconium alloy end plugs and facilitate the application of SiC/SiC core cladding in the nuclear field.
The SiC/SiC cladding tube is connected with the Zr alloy end plug, and Ti/Mo foil or powder is adopted as a connecting material under the condition of not changing the design of the existing Zr alloy end plug. Compared with a glass ceramic connection method with a more complicated process, the method saves cost, and the connection speed of the joint is higher, so that the joint has good air tightness and can prevent fission products from leaking.
Drawings
FIG. 1 is a schematic view of a port packaging structure 1 of a SiC/SiC cladding tube
FIG. 2 is a schematic view of a SiC/SiC cladding tube port package 2
FIG. 3 is a flow chart of a SiC/SiC cladding tube port encapsulation process
Detailed Description
The invention will now be further described with reference to the following examples and drawings:
example 1
In the embodiment, a Ti foil is used as a connecting material on a SiC/SiC composite material tube to encapsulate a nuclear cladding tube. The SiC/SiC cladding tube used had the following dimensions: 10mm inner diameter, 12mm outer diameter, 130mm tube length.
The present embodiment includes the following steps:
(1) designing a packaging structure and processing an end plug.
The encapsulation design of the cladding tube is as follows: zirconium alloy end plugs with a larger outer diameter than the SiC/SiC cladding tube are used, and Ti foil is used as connecting material between the cladding tube and the end plugs (see figure 1)
(2) And polishing and ultrasonically cleaning the workpieces to be connected.
Polishing the SiC/SiC cladding tube and the Zr alloy end plug to 800 meshes by using sand paper, and ultrasonically cleaning in ethanol for 15 minutes; and (4) putting the cleaned workpieces into an oven to be dried for later use.
(3) Prepackaging
Connecting the SiC/SiC cladding tube with the Zr alloy end plug according to the structure shown in figure 1, placing Ti foil on the outer wall of the SiC/SiC cladding tube, then loading the SiC/SiC composite cladding tube into a port to be packaged, and cleaning residues in the end plug and the SiC/SiC cladding tube to finish pre-packaging;
(4) package with a metal layer
And (3) placing the pre-packaged joint in a muffle furnace for heating and sintering at 1300 ℃, introducing argon as protective gas, and preserving the temperature for 30 minutes at the temperature of 1000-1500 ℃. Finally, the furnace temperature was cooled at a rate of 2 ℃/min to obtain a well-bonded joint.
Example 2
In the embodiment, a Ti foil is used as a connecting material on a SiC/SiC composite material tube to encapsulate a nuclear cladding tube. The SiC/SiC cladding tube used had the following dimensions: the inner diameter is 10.5mm, the outer diameter is 12mm, and the length of the tube is 140 mm.
The present embodiment includes the following steps:
(1) designing a packaging structure and processing an end plug.
The encapsulation design of the cladding tube is as follows: using zirconium alloy end plugs with a diameter larger than the inner diameter of the SiC/SiC cladding tube, using Ti foil as a connecting material between the cladding tube and the end plugs (see FIG. 2)
(2) And polishing and ultrasonically cleaning the workpieces to be connected.
Polishing the SiC/SiC cladding tube and the Zr alloy end plug to 800 meshes by using sand paper, and ultrasonically cleaning in ethanol for fifteen minutes; and (4) putting the cleaned workpieces into an oven to be dried for later use.
(3) And (6) pre-packaging.
Connecting the SiC/SiC cladding tube with the Zr alloy end plug according to the structure shown in figure 2, placing Ti foil on the connecting surface of the SiC/SiC cladding tube and the Zr alloy, then loading the SiC/SiC composite cladding tube into a port to be packaged, and cleaning residues in the end plug and the SiC/SiC cladding tube to finish pre-packaging;
(4) package with a metal layer
And (3) placing the pre-packaging joint in a muffle furnace for heating and sintering within the range of 1500 ℃ plus 1000 ℃, introducing argon as protective gas, and preserving the heat for 30 minutes at 1500 ℃ plus 1000 ℃. Finally, the furnace temperature was cooled at a rate of 2 ℃/min to obtain a well-bonded joint.
Example 3
In the embodiment, Ti powder is used as a connecting material on a SiC/SiC composite material pipe to package a nuclear cladding pipe. The SiC/SiC cladding tube used had the following dimensions: the inner diameter is 10.5mm, the outer diameter is 12mm, and the length of the tube is 130 mm.
The present embodiment includes the following steps:
(1) designing a packaging structure and processing an end plug.
The encapsulation design of the cladding tube is as follows: adopting a zirconium alloy end plug with a diameter larger than that of the SiC/SiC cladding tube, and adopting Ti powder as a connecting material between the cladding tube and the end plug (see figure 2)
(2) And polishing and ultrasonically cleaning the workpieces to be connected.
Polishing the SiC/SiC cladding tube and the Zr alloy end plug to 800 meshes by using sand paper, and ultrasonically cleaning in ethanol for fifteen minutes; and (4) putting the cleaned workpieces into an oven to be dried for later use.
(3) Dispensing encapsulant
Uniformly mixing Ti powder with the particle size of 1 mu m and alcohol, adding 70 wt% of alcohol amount of the powder, preparing into a packaging agent, and sealing for later use.
(4) And (6) pre-packaging.
Connecting the SiC/SiC cladding tube with the Zr alloy end plug according to the structure shown in figure 2, placing a Ti encapsulant at the connecting surface of the SiC/SiC cladding tube and the Zr alloy, then loading the SiC/SiC composite cladding tube into a port to be encapsulated, and cleaning residues in the end plug and the SiC/SiC cladding tube to finish pre-encapsulation;
(5) package with a metal layer
And (3) placing the pre-packaging joint in a muffle furnace for heating and sintering within the range of 1500 ℃ plus 1000 ℃, introducing argon as protective gas, and preserving the heat for 30 minutes at 1500 ℃ plus 1000 ℃. Finally, the furnace temperature was cooled at a rate of 2 ℃/min to obtain a well-bonded joint.
Example 4
In the embodiment, Mo powder is used as a connecting material on a SiC/SiC composite material pipe to encapsulate a nuclear cladding pipe. The SiC/SiC cladding tube used had the following dimensions: the inner diameter is 10.5mm, the outer diameter is 12mm, and the length of the tube is 130 mm.
The present embodiment includes the following steps:
(1) designing a packaging structure and processing an end plug.
The encapsulation design of the cladding tube is as follows: adopting a zirconium alloy end plug with a diameter larger than that of the SiC/SiC cladding tube, and adopting Mo powder as a connecting material between the cladding tube and the end plug (see figure 2)
(2) And polishing and ultrasonically cleaning the workpieces to be connected.
Polishing the SiC/SiC cladding tube and the Zr alloy end plug to 800 meshes by using sand paper, and ultrasonically cleaning in acetone for fifteen minutes; and (4) putting the cleaned workpieces into an oven to be dried for later use.
(3) Dispensing encapsulant
Mo powder with the grain diameter of about 1 mu m is uniformly mixed with alcohol, and the alcohol content is 70 wt% of the mass of the powder, so that the packaging agent is prepared and sealed for later use.
(4) And (6) pre-packaging.
Connecting the SiC/SiC cladding tube with the Zr alloy end plug according to the structure shown in figure 2, placing a Mo encapsulant at the connecting surface of the SiC/SiC cladding tube and the Zr alloy, then loading the SiC/SiC composite cladding tube into a port to be encapsulated, and cleaning residues in the end plug and the SiC/SiC cladding tube to finish pre-encapsulation;
(5) package with a metal layer
And (3) placing the pre-packaging joint in a muffle furnace for heating and sintering within the range of 1500 ℃ plus 1000 ℃, introducing argon as protective gas, and preserving the heat for 30 minutes at 1500 ℃ plus 1000 ℃. Finally, the furnace temperature was cooled at a rate of 2 ℃/min to obtain a well-bonded joint.
Example 5
In the embodiment, Ti powder is used as a connecting material on a SiC/SiC composite material pipe to package a nuclear cladding pipe. The SiC/SiC cladding tube used had the following dimensions: 10mm inner diameter, 12mm outer diameter, 130mm tube length.
The present embodiment includes the following steps:
(1) designing a packaging structure and processing an end plug.
The encapsulation design of the cladding tube is as follows: adopting a zirconium alloy end plug with a diameter larger than that of the SiC/SiC cladding tube, and adopting Ti powder as a connecting material between the cladding tube and the end plug (see figure 2)
(2) And polishing and ultrasonically cleaning the workpieces to be connected.
Polishing the SiC/SiC cladding tube and the Zr alloy end plug to 800 meshes by using sand paper, and ultrasonically cleaning in ethanol for 15 minutes; and (4) putting the cleaned workpieces into an oven to be dried for later use.
(3) Dispensing encapsulant
Uniformly mixing Ti powder with the particle size of 1 mu m and alcohol, adding 70 wt% of alcohol amount of the powder, preparing into a packaging agent, and sealing for later use.
(4) Prepackaging
Connecting the SiC/SiC cladding tube with the Zr alloy end plug according to the structure shown in figure 1, placing a Ti encapsulant on the outer wall of the SiC/SiC cladding tube, then loading the SiC/SiC composite cladding tube into a port to be encapsulated, and cleaning residues in the end plug and the SiC/SiC cladding tube to finish pre-encapsulation;
(5) package with a metal layer
And (3) placing the pre-packaging joint in a muffle furnace for heating and sintering at 1200 ℃, introducing argon as protective gas, and preserving the temperature for 30 minutes at 1500 ℃ in 1000-fold manner. Finally, the furnace temperature was cooled at a rate of 2 ℃/min to obtain a well-bonded joint.
Example 6
In the embodiment, Mo powder is used as a connecting material on a SiC/SiC composite material pipe to encapsulate a nuclear cladding pipe. The SiC/SiC cladding tube used had the following dimensions: 10mm inner diameter, 12mm outer diameter, 130mm tube length.
The present embodiment includes the following steps:
(1) designing a packaging structure and processing an end plug.
The encapsulation design of the cladding tube is as follows: adopting a zirconium alloy end plug with larger outer diameter than the SiC/SiC cladding tube, adopting Mo powder as a connecting material between the cladding tube and the end plug (see figure 1)
(3) And polishing and ultrasonically cleaning the workpieces to be connected.
Polishing the SiC/SiC cladding tube and the Zr alloy end plug to 800 meshes by using sand paper, and ultrasonically cleaning in ethanol for 15 minutes; and (4) putting the cleaned workpieces into an oven to be dried for later use.
(3) Dispensing encapsulant
Mo powder with the grain diameter of 1 mu m is uniformly mixed with alcohol, and the alcohol amount is 70 wt% of the mass of the powder, so that the packaging agent is prepared and sealed for later use.
(4) Prepackaging
Connecting the SiC/SiC cladding tube with the Zr alloy end plug according to the structure shown in figure 1, placing a Mo encapsulant on the outer wall of the SiC/SiC cladding tube, then loading the SiC/SiC composite cladding tube into a port to be encapsulated, and cleaning residues in the end plug and the SiC/SiC cladding tube to finish pre-encapsulation;
(5) package with a metal layer
And (3) placing the pre-packaged joint in a muffle furnace for heating and sintering at 1350 ℃, introducing argon as protective gas, and preserving the temperature for 30 minutes at 1500 ℃ in 1000-fold manner. Finally, the furnace temperature was cooled at a rate of 2 ℃/min to obtain a well-bonded joint.
Claims (3)
1. A method for in-situ connection of a SiC/SiC core cladding tube by adopting Zr alloy end plugs is characterized in that: the end plug of the SiC/SiC composite material cladding tube is a zirconium alloy end, and the method comprises the following steps:
step 1: putting the SiC composite material cladding tube and the Zr alloy end plug into ethanol, ultrasonically cleaning for 15-30min, and drying in an oven;
step 2: polishing the Ti/Mo encapsulant to 800 meshes by using sand paper, putting the encapsulant into ethanol, ultrasonically cleaning for 15-30min, and then putting the encapsulant into an oven for drying;
and step 3: placing a Ti or Mo encapsulating agent on the outer wall of the SiC/SiC cladding tube, then filling the SiC/SiC composite cladding tube into a Zr alloy end to be plugged at a port to be encapsulated, and cleaning residues in the end plug and the SiC/SiC cladding tube to finish pre-encapsulation;
and 4, step 4: placing the pre-packaged joint in a muffle furnace, heating and sintering at the temperature of 1000-1500 ℃, introducing argon as protective gas, and preserving heat for 20-60 minutes; and finally, cooling the furnace temperature at the speed of 1-5 ℃/min, thereby finishing packaging the Zr alloy end plug in the SiC/SiC core cladding tube.
2. The method of in-situ joining of SiC/SiC core cladding tubes with Zr alloy end plugs as claimed in claim 1, wherein: the Ti or Mo sealant adopts Ti foil/powder or Mo foil/powder.
3. The method of in-situ joining of SiC/SiC core cladding tubes with Zr alloy end plugs as claimed in claim 1, wherein: the diameter of the zirconium alloy end plug is larger than that of the SiC cladding tube or smaller than that of the SiC cladding tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010027473.6A CN111185686A (en) | 2020-01-10 | 2020-01-10 | Method for in-situ connection of SiC/SiC core cladding tube by adopting Zr alloy end plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010027473.6A CN111185686A (en) | 2020-01-10 | 2020-01-10 | Method for in-situ connection of SiC/SiC core cladding tube by adopting Zr alloy end plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111185686A true CN111185686A (en) | 2020-05-22 |
Family
ID=70684948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010027473.6A Pending CN111185686A (en) | 2020-01-10 | 2020-01-10 | Method for in-situ connection of SiC/SiC core cladding tube by adopting Zr alloy end plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111185686A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112608164A (en) * | 2020-11-12 | 2021-04-06 | 中广核研究院有限公司 | Connection brazing filler metal, preparation method thereof and silicon carbide cladding connection method |
| CN112750538A (en) * | 2020-12-31 | 2021-05-04 | 中核北方核燃料元件有限公司 | Silicon carbide composite material reinforced zirconium cladding tube |
| CN112756859A (en) * | 2020-12-30 | 2021-05-07 | 中核北方核燃料元件有限公司 | Method for confirming gap between end plug and inner welding seam of cladding tube |
| CN112786224A (en) * | 2020-12-31 | 2021-05-11 | 中核北方核燃料元件有限公司 | Method for connecting silicon carbide composite fuel cladding and end plug |
| CN113185315A (en) * | 2021-03-29 | 2021-07-30 | 岭东核电有限公司 | Nuclear silicon carbide cladding rapid connection method, SiC cladding and application thereof |
| WO2022100281A1 (en) * | 2020-11-12 | 2022-05-19 | 岭东核电有限公司 | Silicon carbide cladding and brazing connection method therefor, and fuel rod and fuel assembly |
| CN115116629A (en) * | 2022-05-11 | 2022-09-27 | 中国原子能科学研究院 | Annular fuel end plug, annular fuel assembly and welding method |
| CN115116629B (en) * | 2022-05-11 | 2024-05-10 | 中国原子能科学研究院 | Annular fuel end plug, annular fuel assembly and welding method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3813759A (en) * | 1971-09-09 | 1974-06-04 | English Electric Co Ltd | Method of brazing |
| CN101709000A (en) * | 2009-11-27 | 2010-05-19 | 西安交通大学 | Method for connecting SiC ceramic by high-temperature liquid phase |
| CN103990880A (en) * | 2014-06-06 | 2014-08-20 | 哈尔滨工业大学 | Non-metallic material and metal material brazing method capable of forming interpenetrating network structure brazing seams |
| CN105469839A (en) * | 2015-12-29 | 2016-04-06 | 西北工业大学 | Chock plug packaged at port of SiC/SiC composite core-cladding tube and packaging method |
| CN106363265A (en) * | 2016-10-08 | 2017-02-01 | 哈尔滨工业大学 | Method for brazing SiC and Zr-4 alloy with Ti-Zr-Ni-Cu brazing filler metal |
| CN108276018A (en) * | 2018-01-19 | 2018-07-13 | 西北工业大学 | A method of C/C composite materials are connected without pressure with the soldering of nickel based metal paillon |
| CN109877413A (en) * | 2019-02-01 | 2019-06-14 | 北方民族大学 | A kind of brazing material and method for welding for SiC ceramic soldering |
-
2020
- 2020-01-10 CN CN202010027473.6A patent/CN111185686A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3813759A (en) * | 1971-09-09 | 1974-06-04 | English Electric Co Ltd | Method of brazing |
| CN101709000A (en) * | 2009-11-27 | 2010-05-19 | 西安交通大学 | Method for connecting SiC ceramic by high-temperature liquid phase |
| CN103990880A (en) * | 2014-06-06 | 2014-08-20 | 哈尔滨工业大学 | Non-metallic material and metal material brazing method capable of forming interpenetrating network structure brazing seams |
| CN105469839A (en) * | 2015-12-29 | 2016-04-06 | 西北工业大学 | Chock plug packaged at port of SiC/SiC composite core-cladding tube and packaging method |
| CN106363265A (en) * | 2016-10-08 | 2017-02-01 | 哈尔滨工业大学 | Method for brazing SiC and Zr-4 alloy with Ti-Zr-Ni-Cu brazing filler metal |
| CN108276018A (en) * | 2018-01-19 | 2018-07-13 | 西北工业大学 | A method of C/C composite materials are connected without pressure with the soldering of nickel based metal paillon |
| CN109877413A (en) * | 2019-02-01 | 2019-06-14 | 北方民族大学 | A kind of brazing material and method for welding for SiC ceramic soldering |
Non-Patent Citations (6)
| Title |
|---|
| JICAI FENG: "SiCセラミックとTi箔の接合における固相反応機構", 《JOURNAL OF THE JAPAN INSTITUTE OF METAL AND MATERIALS》 * |
| M. SALVO: "Joining of CMCs for thermonuclear fusion applications", 《JOURNAL OF NUCLEAR MATERIALS》 * |
| 张启运等: "《钎焊手册》", 31 January 1999, 机械工程出版社 * |
| 张洪涛等: "《特种焊接技术》", 31 August 2013, 哈尔滨工业大学出版社 * |
| 所俊: "SiC陶瓷及其复合材料的先驱体高温连接及陶瓷金属梯度材料的制备与连接研究", 《中国博士学位论文全文库工程科技Ⅰ辑》 * |
| 赵子光: "扩散连接条件对SiC/SiC接头微观组织和力学性能的影响", 《中国优秀硕士学位论文全文数据库工程科技Ι辑》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112608164A (en) * | 2020-11-12 | 2021-04-06 | 中广核研究院有限公司 | Connection brazing filler metal, preparation method thereof and silicon carbide cladding connection method |
| CN112608164B (en) * | 2020-11-12 | 2021-08-27 | 中广核研究院有限公司 | Connection brazing filler metal, preparation method thereof and silicon carbide cladding connection method |
| WO2022100281A1 (en) * | 2020-11-12 | 2022-05-19 | 岭东核电有限公司 | Silicon carbide cladding and brazing connection method therefor, and fuel rod and fuel assembly |
| CN112756859A (en) * | 2020-12-30 | 2021-05-07 | 中核北方核燃料元件有限公司 | Method for confirming gap between end plug and inner welding seam of cladding tube |
| CN112750538A (en) * | 2020-12-31 | 2021-05-04 | 中核北方核燃料元件有限公司 | Silicon carbide composite material reinforced zirconium cladding tube |
| CN112786224A (en) * | 2020-12-31 | 2021-05-11 | 中核北方核燃料元件有限公司 | Method for connecting silicon carbide composite fuel cladding and end plug |
| CN113185315A (en) * | 2021-03-29 | 2021-07-30 | 岭东核电有限公司 | Nuclear silicon carbide cladding rapid connection method, SiC cladding and application thereof |
| CN115116629A (en) * | 2022-05-11 | 2022-09-27 | 中国原子能科学研究院 | Annular fuel end plug, annular fuel assembly and welding method |
| CN115116629B (en) * | 2022-05-11 | 2024-05-10 | 中国原子能科学研究院 | Annular fuel end plug, annular fuel assembly and welding method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111185686A (en) | Method for in-situ connection of SiC/SiC core cladding tube by adopting Zr alloy end plug | |
| CN109396631B (en) | Hot isostatic pressing diffusion bonding method for tungsten/transition layer/stainless steel | |
| KR20160132933A (en) | Double-sealed fuel rod end plug for ceramic-containing cladding | |
| CN112570832B (en) | Silicon carbide cladding and brazing connection method thereof | |
| CN105499816A (en) | Manufacturing process suitable for tungsten and steel connection of first wall part of fusion reactor | |
| CN109336634B (en) | SiCfCaO-MgO-Al at port of/SiC nuclear cladding tube2O3-SiO2Glass packaging method | |
| JP6173767B2 (en) | Heat-receiving tile made of carbon fiber composite material and manufacturing method thereof | |
| JP2012233734A (en) | Fuel cladding tube assembly and manufacturing method thereof | |
| CN104973879A (en) | Method for jointing Al2O3 ceramic and ceramic sealing alloy | |
| CN104226870A (en) | Covering method for hot isostatic pressing of aluminum-stainless steel composite pipe | |
| CN111926211A (en) | Preparation method of diamond/metal composite material | |
| CN108555476B (en) | Composite brazing filler metal for brazing quartz fiber reinforced composite ceramic and Invar alloy and preparation method and brazing method thereof | |
| CN114178640A (en) | Thermal shock-resistant graphite and metal brazing method | |
| CN111843165B (en) | Diffusion connection method for diamond micro-channel | |
| CN106782829A (en) | For the electrical penetration feedthrough of nuclear power station | |
| CN111687530B (en) | Method for compounding hydrogen absorption expansion substance and other materials | |
| JP6563581B1 (en) | Dissimilar metal joint for divertor | |
| CN108732708A (en) | The airtight connection of opto-electronic device transparent optical window | |
| CN115417687A (en) | Welding packaging SiC f Method for cladding tube by using SiC | |
| CN112457042A (en) | Connecting structure and connecting method of ceramic composite pipe and metal pore plate | |
| CN206471152U (en) | A kind of electrical penetration feedthrough for nuclear power station | |
| CN111451633B (en) | Welding and packaging method for molybdenum alloy accident fault-tolerant fuel rod | |
| CN116161979B (en) | Method for connecting Ti-Al-C system MAX phase ceramic and zirconium alloy | |
| CN110277177B (en) | Method for closing gap between fuel pellet and cladding in target | |
| US20220415526A1 (en) | End plug for sealing composite tubular ceramic cladding of fuel element of nuclear reactor (variants), and method for manufacturing same (variants) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200522 |
|
| WD01 | Invention patent application deemed withdrawn after publication |