CN106299949A - A kind of cryogenic magnet overlapping splice soldering technology - Google Patents
A kind of cryogenic magnet overlapping splice soldering technology Download PDFInfo
- Publication number
- CN106299949A CN106299949A CN201610656946.2A CN201610656946A CN106299949A CN 106299949 A CN106299949 A CN 106299949A CN 201610656946 A CN201610656946 A CN 201610656946A CN 106299949 A CN106299949 A CN 106299949A
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- Prior art keywords
- joint
- copper face
- soldering
- tining
- face
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
- H01R43/0207—Ultrasonic-, H.F.-, cold- or impact welding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/68—Connections to or between superconductive connectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
- H01R43/0235—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections for applying solder
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Abstract
The invention discloses a kind of cryogenic magnet overlapping splice soldering technology, including single joint copper face tining and twin adapter overlap joint soldering two step.Comparing more traditional bridging method, the list independent tining of joint copper face of the present invention can ensure that stannum material can cover joint copper face by complete wetting, it is simple to removes the oxide in stannum material and impurity；It is added without new solder and scaling powder, it is ensured that joint contact surfaces does not exist scaling powder and oxide residual during twin adapter overlap joint soldering；Twin adapter overlap joint uses automatization's pressurization, firing equipment, thus realizes the accurate control of the heating of overlap joint process, compression rate；Execute-in-place is strong, and Joint Reliability is high, contact resistance is low, contact strength is high.
Description
Technical field
The invention discloses the overlap joint soldering technology of a kind of novel cryogenic magnet joint, it is led for armored cable
The cryogenic magnet of body (CICC) structure and the junction of low-temperature transmission lines.
Technical background
At present, during the cryogenic magnet of CICC structure is widely used in high-intensity magnetic field and fusion assay device.Superconduction connects
Head, for electric current and the transmission of liquid helium between superconducting magnet and low temperature feeder line, has high contact strength, resistance to big electric current, low contact electricity
The requirements such as resistance, high reliability.Superconducting joint generally uses oxygen-free high conductivity type copper-316L stainless steel clad plate to manufacture, Qi Zhonggao
Leading the oxygen-free copper layer transmission for electric current, 316L stainless steel layer is for increasing rigidity and the intensity of box body.Superconducting magnet and low temperature
The joint of feeder line is the most separately fabricated, carries out overlapping soldering in magnet erecting bed, and tradition bridging method is to connect two superconductions
Smear scaling powder between Tou in advance and lay stannum sheet, again the rustless steel side of two box bodys being entered after using the pressurization of bolt clip plate structure
Row adds thermal weld.This overlapping mode often can between the contact surface of two joints residual flux and stannum sheet oxide, thus
Impact contact effect, causes connection resistance increase, intensity to reduce, and therefore a kind of soldering technology that overlaps reliably of design guarantees joint
Can meet big contact strength, low contact resistance, the requirement of high reliability are problems the most in the urgent need to address.
Summary of the invention
The present invention based on country big science engineering EAST Superconducting tokamak device superconducting transmission line upgrading and
On the basis of the outer superconducting magnet practical implementation of Chinese Academy of Sciences's high-intensity magnetic field center 40T hybrid magnet, it is provided that a kind of novel low
Temp. superconductive magnetic connectors overlap joint soldering technology, can be used for the connection between superconducting magnet and low temperature feeder line.
A kind of cryogenic magnet overlapping splice soldering technology, it is characterised in that include that single joint copper face tining connects with double
Head overlap joint soldering two step, wherein:
Specifically comprising the following steps that of described single joint copper face tining
(1), single joint copper face upwards horizontal positioned, the heating plate of cast aluminium material, joint copper face both sides are laid in joint rustless steel side
Arrange monitoring temperature point；
(2), joint heats with the heating rate of 5 DEG C/min, after joint copper face temperature arrives 120 DEG C, by firing equipment
Being adjusted to keeping warm mode, now, joint copper face smears scaling powder, is smeared toward joint copper face by 110 DEG C of strip stannum material so that it is leaching
Moisten and be completely covered copper face, and utilize the surface tension of liquid tin material, make tin thickness reach between 2-3mm, as occurred not soaking
Profit phenomenon then continues tining after scaling powder is smeared again in this region, until joint copper face is completely covered by tin layers；
(3), use foil carefully to strike off impurity and the oxide on liquid tin material surface, make stannum face present brilliant metallic completely
Silver color；
(4), closing firing equipment, natural cooling joint is to room temperature；
Specifically comprising the following steps that of described twin adapter overlap joint soldering
(1), at the connection scene of superconducting magnet and low temperature feeder line, the copper face contact of two joints of tining will be distinguished, stainless
Cast aluminium material heating plate is laid in steel face, and monitoring temperature point is all arranged in each joint copper face both sides, uses synchronous hydraulic equipment not
Rust steel side applies 1000N pressure compaction joint, it is ensured that being relatively fixed of two joint location；
(2), the rustless steel side of two joints start simultaneously at heating, 5 DEG C/min of heating rate, after copper face temperature reaches 110 DEG C,
Stannum material between joint starts fusing and gradually overflows, the pressure being now gradually increased between joint according to the speed of 7500N/min；
(3), continue after heated coupling reaches 120 DEG C to copper face temperature, firing equipment to be adjusted to keeping warm mode, synchronous hydraulic equipment pressure
Power maintains 20000N, closes firing equipment after insulation 1min；
(4), hydraulic test pressure is continuously maintained at 20000N, until joint naturally cools to room temperature.
Comparing more traditional bridging method, the innovative point of the present invention is mainly:
Single independent tining of joint copper face can ensure that stannum material can cover joint copper face by complete wetting, it is simple to removes the oxidation in stannum material
Thing and impurity；Twin adapter overlap joint soldering time be added without new solder and scaling powder, it is ensured that joint contact surfaces do not exist scaling powder and
Oxide remains；Twin adapter overlap joint uses automatization's pressurization, firing equipment, thus realizes the heating of overlap joint process, compression rate
Accurately control；Execute-in-place is strong, and Joint Reliability is high, contact resistance is low, contact strength is high.
Accompanying drawing explanation
Fig. 1 be the present invention single joint tining before schematic diagram；
Fig. 2 be the present invention single joint tining after schematic diagram；
Fig. 3 is that the twin adapter of the present invention overlaps schematic diagram before soldering；
Fig. 4 is that the twin adapter of the present invention overlaps schematic diagram after soldering；
Wherein: 1, superconducting conductor；2, joint box body I；3, surface stainless steel；4, oxygen-free high conductivity type copper face；5, liquid helium pipe；6, tin layers；7、
Joint box body II.
Detailed description of the invention
A kind of cryogenic magnet overlapping splice soldering technology, it is characterised in that include single joint copper face of superconducting conductor 1
Tining and twin adapter overlap joint soldering two step, the superconducting joint of superconducting conductor 1 connects and has liquid helium pipe 5, wherein:
Specifically comprising the following steps that of described single joint copper face tining
(1), single joint box body I 2, the copper face 4 upwards horizontal positioned of joint box body II 7, joint surface stainless steel 3 lays cast aluminium material
Heating plate, joint copper face 4 both sides arrange monitoring temperature point；
(2), joint heats with the heating rate of 5 DEG C/min, after joint copper face 4 temperature arrives 120 DEG C, by firing equipment
Being adjusted to keeping warm mode, now, joint copper face 4 smears scaling powder, is smeared toward joint copper face 4 by 110 DEG C of strip stannum material so that it is
Infiltrate and be completely covered copper face, and utilize the surface tension of liquid tin material, make tin layers 6 thickness reach between 2-3mm, as occurred not
Infiltration phenomenon then continues tining after scaling powder is smeared again in this region, until joint copper face 4 is completely covered by tin layers 6；
(3), use foil carefully to strike off impurity and the oxide on liquid tin material surface, make tin layers 6 present bright gold completely
Belong to silver color；
(4), closing firing equipment, natural cooling joint box body I 2, joint box body II 7 to room warm to room temperature；
Specifically comprising the following steps that of described twin adapter overlap joint soldering
(1), on-the-spot in the connection of superconducting magnet and low temperature feeder line, will distinguish the joint box body I 2 of tining, joint box body II 7
Copper face 4 contacts, and surface stainless steel 3 lays cast aluminium material heating plate, and monitoring temperature point is all arranged in each joint copper face 4 both sides.Use
Synchronous hydraulic equipment applies 1000N pressure compaction joint in rustless steel side 3, it is ensured that joint box body I 2, joint box body II 7 position
It is relatively fixed；
(2), the rustless steel side 3 of joint box body I 2, joint box body II 7 start simultaneously at heating, 5 DEG C/min of heating rate, when copper face 4
After temperature reaches 110 DEG C, the stannum material of the tin layers 6 between joint starts fusing and gradually overflows, now according to the speed of 7500N/min
The pressure being gradually increased between joint；
(3), continue after heated coupling box body I 2, joint box body II 7 to copper face 4 temperature reach 120 DEG C, firing equipment to be adjusted to insulation
State, synchronous hydraulic equipment pressure maintains 20000N, closes firing equipment after insulation 1min；
(4), hydraulic test pressure is continuously maintained at 20000N, until joint box body I 2, joint box body II 7 naturally cool to room
Temperature.
(5), removing hydraulic test, superconducting joint overlap joint soldering completes.
Claims (1)
1. a cryogenic magnet overlapping splice soldering technology, it is characterised in that include single joint copper face tining and twin adapter
Overlap joint soldering two step, wherein:
Specifically comprising the following steps that of described single joint copper face tining
(1), single joint copper face upwards horizontal positioned, the heating plate of cast aluminium material, joint copper face both sides are laid in joint rustless steel side
Arrange monitoring temperature point；
(2), joint heats with the heating rate of 5 DEG C/min, after joint copper face temperature arrives 120 DEG C, by firing equipment
Being adjusted to keeping warm mode, now, joint copper face smears scaling powder, is smeared toward joint copper face by 110 DEG C of strip stannum material so that it is leaching
Moisten and be completely covered copper face, and utilize the surface tension of liquid tin material, make tin thickness reach between 2-3mm, as occurred not soaking
Profit phenomenon then continues tining after scaling powder is smeared again in this region, until joint copper face is completely covered by tin layers；
(3), use foil carefully to strike off impurity and the oxide on liquid tin material surface, make stannum face present brilliant metallic completely
Silver color；
(4), closing firing equipment, natural cooling joint is to room temperature；
Specifically comprising the following steps that of described twin adapter overlap joint soldering
(1), at the connection scene of superconducting magnet and low temperature feeder line, the copper face contact of two joints of tining will be distinguished, stainless
Cast aluminium material heating plate is laid in steel face, and monitoring temperature point is all arranged in each joint copper face both sides, uses synchronous hydraulic equipment not
Rust steel side applies 1000N pressure compaction joint, it is ensured that being relatively fixed of two joint location；
(2), the rustless steel side of two joints start simultaneously at heating, 5 DEG C/min of heating rate, after copper face temperature reaches 110 DEG C,
Stannum material between joint starts fusing and gradually overflows, the pressure being now gradually increased between joint according to the speed of 7500N/min；
(3), continue after heated coupling reaches 120 DEG C to copper face temperature, firing equipment to be adjusted to keeping warm mode, synchronous hydraulic equipment pressure
Power maintains 20000N, closes firing equipment after insulation 1min；
(4), hydraulic test pressure is continuously maintained at 20000N, until joint naturally cools to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610656946.2A CN106299949A (en) | 2016-08-11 | 2016-08-11 | A kind of cryogenic magnet overlapping splice soldering technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610656946.2A CN106299949A (en) | 2016-08-11 | 2016-08-11 | A kind of cryogenic magnet overlapping splice soldering technology |
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| CN106299949A true CN106299949A (en) | 2017-01-04 |
Family
ID=57668683
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| CN201610656946.2A Pending CN106299949A (en) | 2016-08-11 | 2016-08-11 | A kind of cryogenic magnet overlapping splice soldering technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106911014A (en) * | 2017-01-13 | 2017-06-30 | 中国科学院合肥物质科学研究院 | A kind of superconducting joint box of utilization indium silk bridging method |
| CN107799916A (en) * | 2017-10-12 | 2018-03-13 | 合肥科烨电物理设备制造有限公司 | One kind is used for double superconducting joint soldering heating systems |
| US10347996B2 (en) | 2017-11-07 | 2019-07-09 | Lotes Co., Ltd | Electrical connector and manufacturing method thereof |
| CN111009798A (en) * | 2019-12-20 | 2020-04-14 | 中国科学院电工研究所 | Multi-core iron-based superconducting joint and preparation method thereof |
| CN115117645A (en) * | 2021-03-23 | 2022-09-27 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Low-temperature superconducting wire welding packaging structure and method for cold conduction equipment |
| CN115911897A (en) * | 2023-03-13 | 2023-04-04 | 中国科学院合肥物质科学研究院 | Sleeve type joint terminal, sleeve type joint and preparation method thereof |
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| CN1608793A (en) * | 2003-10-20 | 2005-04-27 | 北京云电英纳超导电缆有限公司 | Superconductive belt welding apparatus and method |
| CN101694908A (en) * | 2009-09-30 | 2010-04-14 | 中国科学院等离子体物理研究所 | Low temperature superconducting assembly with low joint resistance for high temperature superconducting current lead cold end |
| CN102513637A (en) * | 2011-11-25 | 2012-06-27 | 广东电网公司电力科学研究院 | Copper-aluminum (Cu-Al) braze welding process of copper-aluminum transition wire clamp |
| CN103346521A (en) * | 2013-06-21 | 2013-10-09 | 中国科学院合肥物质科学研究院 | Connector box for in-pipe cable conductor superconducting connector |
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2016
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1608793A (en) * | 2003-10-20 | 2005-04-27 | 北京云电英纳超导电缆有限公司 | Superconductive belt welding apparatus and method |
| CN101694908A (en) * | 2009-09-30 | 2010-04-14 | 中国科学院等离子体物理研究所 | Low temperature superconducting assembly with low joint resistance for high temperature superconducting current lead cold end |
| CN102513637A (en) * | 2011-11-25 | 2012-06-27 | 广东电网公司电力科学研究院 | Copper-aluminum (Cu-Al) braze welding process of copper-aluminum transition wire clamp |
| CN103346521A (en) * | 2013-06-21 | 2013-10-09 | 中国科学院合肥物质科学研究院 | Connector box for in-pipe cable conductor superconducting connector |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106911014A (en) * | 2017-01-13 | 2017-06-30 | 中国科学院合肥物质科学研究院 | A kind of superconducting joint box of utilization indium silk bridging method |
| CN106911014B (en) * | 2017-01-13 | 2019-01-04 | 中国科学院合肥物质科学研究院 | A kind of superconducting joint box using indium silk bridging method |
| CN107799916A (en) * | 2017-10-12 | 2018-03-13 | 合肥科烨电物理设备制造有限公司 | One kind is used for double superconducting joint soldering heating systems |
| US10347996B2 (en) | 2017-11-07 | 2019-07-09 | Lotes Co., Ltd | Electrical connector and manufacturing method thereof |
| CN111009798A (en) * | 2019-12-20 | 2020-04-14 | 中国科学院电工研究所 | Multi-core iron-based superconducting joint and preparation method thereof |
| CN115117645A (en) * | 2021-03-23 | 2022-09-27 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Low-temperature superconducting wire welding packaging structure and method for cold conduction equipment |
| CN115911897A (en) * | 2023-03-13 | 2023-04-04 | 中国科学院合肥物质科学研究院 | Sleeve type joint terminal, sleeve type joint and preparation method thereof |
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Application publication date: 20170104 |
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