CN114589468A - Repair process and joint of water-cooled cable - Google Patents
Repair process and joint of water-cooled cable Download PDFInfo
- Publication number
- CN114589468A CN114589468A CN202210351808.9A CN202210351808A CN114589468A CN 114589468 A CN114589468 A CN 114589468A CN 202210351808 A CN202210351808 A CN 202210351808A CN 114589468 A CN114589468 A CN 114589468A
- Authority
- CN
- China
- Prior art keywords
- water
- cooled cable
- joint
- welding
- copper
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/04—Electroplating with moving electrodes
- C25D5/06—Brush or pad plating
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
The invention discloses a repair process and a joint of a water-cooled cable, wherein the repair process comprises the steps of cutting off a damaged part of the water-cooled cable, adapting a copper joint according to the size of the damaged part, brushing silver on the surface of the copper joint, and then soldering the copper joint and the water-cooled cable by using Ag72cu solder; the joint is formed by the repair process. The invention can meet the overall performance of the repaired water-cooled cable, ensures that the cooling speed of the repaired water-cooled cable is not influenced, and has the advantages of simple process and convenient operation.
Description
Technical Field
The invention belongs to the technical field of wire and cable processing, and particularly relates to a repair process and a connector of a water-cooled cable.
Background
The water-cooled cable is a hollow water-through special cable for high-current heating equipment. The water-cooled cable applied to the fully superconducting Tokamak nuclear fusion experimental device (EAST) is complex in structure, the water-cooled cable is easy to damage in the carrying and installing processes, if the overall replacement cost is high, if the damaged cable is cut off, the performance of the water-cooled cable is difficult to guarantee by adopting a mode of connecting a common copper joint, and particularly the cooling speed of the water-cooled cable is very easy to be influenced by the copper joint.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a repairing process of a water-cooled cable, which can meet the overall performance of the repaired water-cooled cable.
(1) Cutting off the damaged part of the water-cooled cable, and adapting the copper joint according to the size of the damaged part;
(2) brushing silver on the surface of the copper joint, and then soldering the copper joint with a water-cooled cable by using Ag72cu solder;
(3) a ceramic cover is sleeved on the surface of a welding seam between the copper joint and the water-cooled cable, an induction heating coil is sleeved outside the ceramic cover, and an argon channel is reserved between the ceramic cover and the welding seam;
(4) starting an induction heating coil for preheating, and introducing argon from an argon channel for protection;
(5) heating by using an induction heating coil, adding 303-45% of silver-based brazing filler metal and QJ102 silver brazing soldering flux when the temperature reaches 780-840 ℃, then welding, and continuously applying pressure to the welding position of the copper joint and the water-cooled cable in the welding process;
(6) and after welding, naturally cooling the water-cooled cable welded with the copper joint to a room temperature state.
In another aspect of the invention, a water-cooled cable joint formed by the repair process is provided.
The invention can meet the overall performance of the repaired water-cooled cable, ensures that the cooling speed of the repaired water-cooled cable is not influenced, and has the advantages of simple process and convenient operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a water-cooled cable and a copper joint according to the present embodiment;
fig. 2 is a schematic view of a welding structure in the present embodiment.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.
Example 1
The repair process for the water-cooled cable provided by the embodiment comprises the following steps:
(1) as shown in fig. 1, cutting off a damaged part of a water-cooled cable 1, and adapting a copper joint 2 according to the size of the damaged part;
(2) as shown in fig. 2, the surface of the copper connector 2 is brushed with silver, and then the silver-copper solder (Ag72cu) is used for soldering with the water-cooled cable 1, wherein the fit clearance between the copper connector 2 and the water-cooled cable 1 is less than 0.05 mm; the silver-copper solder (Ag72cu) has good fluidity, so that the solder can completely fill gaps, the bonding rate exceeds 80%, and the welding seam is fuller;
(3) a ceramic cover 3 is sleeved on the surface of a welding line between the copper joint 2 and the water-cooled cable 1, an induction heating coil 4 is sleeved outside the ceramic cover 3, and an argon channel 5 is reserved between the ceramic cover 3 and the welding line;
(4) starting the induction heating coil 4 for preheating, wherein the preheating part is 2-4cm away from the welding line, and the preheating time is 2-4 min; the purpose is that the temperature of the joint is uniform, the fluidity of the matched solder is good, the whole welding line is easy to fill before the joint is oxidized, and the process performance of the joint is not damaged;
(5) introducing argon gas for protection from an argon gas channel 5, heating by using an induction heating coil 4, adding 303-45% of silver-based brazing filler metal (melting point 660-; the purpose is that argon is used for isolation protection, so that the joint is not easy to oxidize, and the bonding rate of the solder is higher under the action of pressure;
(6) and after welding, naturally cooling the water-cooled cable 1 welded with the copper joint 2 to a room temperature state, polishing the surface of a welding seam to be flat, and visually checking to ensure that the welding seam has no defects such as cracks, pits, air holes, slag inclusion and the like.
Example 2
This example provides a water-cooled cable joint that was formed using the repair process of example 1.
Example 3
The strength of the magnetic field of the water-cooled cable is obviously reduced in the using process, the defect position is found through nondestructive testing, the repairing process of the embodiment 1 is utilized for repairing to form the water-cooled cable joint of the embodiment 2, the water-cooled cable containing the water-cooled cable joint is detected, and the detection result is as follows:
the water-cooled cable repaired by the process has the advantages that the current, the voltage, the resistance and the magnetic field intensity all reach the state before the fault.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (2)
1. The repair process of the water-cooled cable is characterized by comprising the following steps:
the method comprises the following steps:
(1) cutting off the damaged part of the water-cooled cable, and adapting the copper joint according to the size of the damaged part;
(2) brushing silver on the surface of the copper joint, and then soldering the copper joint with a water-cooled cable by using Ag72cu solder;
(3) a ceramic cover is sleeved on the surface of a welding seam between the copper joint and the water-cooled cable, an induction heating coil is sleeved outside the ceramic cover, and an argon channel is reserved between the ceramic cover and the welding seam;
(4) starting an induction heating coil for preheating, and introducing argon from an argon channel for protection;
(5) heating by using an induction heating coil, adding 303-45% of silver-based brazing filler metal and QJ102 silver brazing soldering flux when the temperature reaches 780-840 ℃, then welding, and continuously applying pressure to the welding position of the copper joint and the water-cooled cable in the welding process;
(6) and after welding, naturally cooling the water-cooled cable welded with the copper connector to a room temperature state.
2. A water-cooled cable joint characterized in that: formed using the repair process of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210351808.9A CN114589468A (en) | 2022-04-02 | 2022-04-02 | Repair process and joint of water-cooled cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210351808.9A CN114589468A (en) | 2022-04-02 | 2022-04-02 | Repair process and joint of water-cooled cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114589468A true CN114589468A (en) | 2022-06-07 |
Family
ID=81821161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210351808.9A Pending CN114589468A (en) | 2022-04-02 | 2022-04-02 | Repair process and joint of water-cooled cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114589468A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983478A (en) * | 2012-11-30 | 2013-03-20 | 上海电气电站设备有限公司 | Soldering quality control method of large-section copper strand wire of turbonator |
| CN103028889A (en) * | 2012-12-25 | 2013-04-10 | 西南铝业（集团）有限责任公司 | Repair method for internal sleeve of extrusion cylinder |
| CN103223547A (en) * | 2013-04-24 | 2013-07-31 | 哈尔滨工业大学 | Dual-hot wire system and welding method for aluminum/steel dissimilar metal TIG (Tungsten Inert Gas) arc fused braze welding |
| CN106475735A (en) * | 2016-11-28 | 2017-03-08 | 中国神华能源股份有限公司 | The restorative procedure of mining large-sized structural parts |
| CN106834628A (en) * | 2016-12-29 | 2017-06-13 | 江西大有科技有限公司 | A kind of non-crystalline material high-frequency method annealing device and method |
| CN109676137A (en) * | 2019-01-28 | 2019-04-26 | 西安增材制造国家研究院有限公司 | A kind of resistance induction composite heating metal wire material increasing material manufacturing device |
| CN110181138A (en) * | 2019-05-22 | 2019-08-30 | 中国科学院合肥物质科学研究院 | The welding procedure of superconductive cable and boxlike copper sleeve in large high-temperature superconductive current lead |
| CN111037021A (en) * | 2020-01-13 | 2020-04-21 | 郑州机械研究所有限公司 | Resistance brazing method for shield machine cutter |
| CN113967821A (en) * | 2021-11-23 | 2022-01-25 | 华瑞（江苏）燃机服务有限公司 | Method for repairing overtemperature damage of composite cooling structure flame tube |
-
2022
- 2022-04-02 CN CN202210351808.9A patent/CN114589468A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983478A (en) * | 2012-11-30 | 2013-03-20 | 上海电气电站设备有限公司 | Soldering quality control method of large-section copper strand wire of turbonator |
| CN103028889A (en) * | 2012-12-25 | 2013-04-10 | 西南铝业（集团）有限责任公司 | Repair method for internal sleeve of extrusion cylinder |
| CN103223547A (en) * | 2013-04-24 | 2013-07-31 | 哈尔滨工业大学 | Dual-hot wire system and welding method for aluminum/steel dissimilar metal TIG (Tungsten Inert Gas) arc fused braze welding |
| CN106475735A (en) * | 2016-11-28 | 2017-03-08 | 中国神华能源股份有限公司 | The restorative procedure of mining large-sized structural parts |
| CN106834628A (en) * | 2016-12-29 | 2017-06-13 | 江西大有科技有限公司 | A kind of non-crystalline material high-frequency method annealing device and method |
| CN109676137A (en) * | 2019-01-28 | 2019-04-26 | 西安增材制造国家研究院有限公司 | A kind of resistance induction composite heating metal wire material increasing material manufacturing device |
| CN110181138A (en) * | 2019-05-22 | 2019-08-30 | 中国科学院合肥物质科学研究院 | The welding procedure of superconductive cable and boxlike copper sleeve in large high-temperature superconductive current lead |
| CN111037021A (en) * | 2020-01-13 | 2020-04-21 | 郑州机械研究所有限公司 | Resistance brazing method for shield machine cutter |
| CN113967821A (en) * | 2021-11-23 | 2022-01-25 | 华瑞（江苏）燃机服务有限公司 | Method for repairing overtemperature damage of composite cooling structure flame tube |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101648312B (en) | Method for welding aluminum materials | |
| CN100395945C (en) | Air-cooled steam turbine generator stator lead-out wire vacuum soldering process | |
| CN106392359A (en) | Method for controlling welding cracks of ultrathin tantalum and molybdenum dissimilar materials | |
| CN104668688A (en) | Vacuum resistive brazing method for lap piece | |
| CN103586560B (en) | The repair method of crackle at a kind of combustion box mounting bracket | |
| CN102581424A (en) | Welding method for copper wire and aluminum wire | |
| CN114589468A (en) | Repair process and joint of water-cooled cable | |
| CN106624310A (en) | Underwater welding device and method for resistance welding | |
| CN101559538A (en) | Process for altering an assembly of metal parts based on nickel or cobalt alloy by high temperature brazing | |
| CN110328424B (en) | High-reliability induction brazing welding joint for wire connection and welding method | |
| CN108723534B (en) | Electrolytic aluminum cathode steel-aluminum fusion brazing welding method | |
| CN110676184B (en) | Interconnection method for metal shell lead | |
| CN109396623A (en) | A kind of resistance welding method being connect with ultra-thin layers of copper with conducting wire suitable for space | |
| CN103394817A (en) | Method for welding to merge heads of wound rotors | |
| WO2021047307A1 (en) | Spot welding method for multi-layer conductor of motor winding | |
| CN114310147A (en) | Method and device for repairing contact surface of open-close type induction heating coil | |
| CN107498162A (en) | A kind of contactor post assembly and soldering connecting method | |
| CN108672868B (en) | Welding method of aluminum and copper heterogeneous metal material | |
| CN108145267B (en) | High-frequency induction brazing method for protective valve of automatic fire extinguishing device of high-altitude aircraft | |
| CN106583959B (en) | A kind of sweat soldering technique for novel copper-aluminium composite bus | |
| CN111360400A (en) | Welding method for automobile aluminum cast radiator | |
| CN221726917U (en) | Welding structure for transformer electric shielding | |
| JP2005146920A (en) | Diffusion brazing repairing method of heat resisting member | |
| JP3126877B2 (en) | Brazing joint structure, brazing device and brazing method | |
| CN104384675A (en) | Micro electric arc welding technology of thin wire coil |
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 |