CN102837093B - Welding method for yttrium series high-temperature superconducting tape - Google Patents
Welding method for yttrium series high-temperature superconducting tape Download PDFInfo
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- CN102837093B CN102837093B CN201210372964.XA CN201210372964A CN102837093B CN 102837093 B CN102837093 B CN 102837093B CN 201210372964 A CN201210372964 A CN 201210372964A CN 102837093 B CN102837093 B CN 102837093B
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- superconducting
- yttrium
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- 238000003466 welding Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 24
- 150000003746 yttrium Chemical class 0.000 title abstract 5
- 229910000679 solder Inorganic materials 0.000 claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 238000003892 spreading Methods 0.000 claims abstract description 10
- 238000009736 wetting Methods 0.000 claims abstract description 5
- 229910052727 yttrium Inorganic materials 0.000 claims description 69
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 69
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005476 soldering Methods 0.000 abstract description 7
- 238000002844 melting Methods 0.000 abstract 2
- 230000008018 melting Effects 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910021521 yttrium barium copper oxide Inorganic materials 0.000 description 1
Landscapes
- Superconductors And Manufacturing Methods Therefor (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
The invention relates to a welding method for an yttrium series high-temperature superconducting tape. The welding method comprises the following steps of: fixing two sections of yttrium series high-temperature superconducting short tapes on two sides of one section of yttrium series high-temperature superconducting long tape to be welded to form a spreading plane area; flatly paving solder in the spreading plane area by adopting a solder heating mode to form a lapping area; lapping another section of yttrium series high-temperature superconducting long tape to the lapping area of the superconducting long tape to enable two sections of superconducting long tapes to have overlapped parts; respectively heating solder in the lapping areas of two sections of superconducting short tapes; melting the solder between the overlapped parts of two sections of superconducting long tapes by self heat transfer of the solder; after melting, wetting and spreading to enable the two sections of superconducting long tapes to be welded together through the solder between the overlapped parts; and finally, stripping two sections of superconducting short tapes by heating and finishing the welding. According to the welding method, the mode of directly heating the high-temperature superconducting tapes to be welded can be avoided, and thus the heating time is short, the superconducting performance of the high-temperature superconducting tapes are prevented from being influenced by high temperature during soldering; and the welding method has the advantages of strong operability, low possibility of generating pseudo soldering and high rate of finished products.
Description
Technical field
The invention belongs to superconduction electrical technology field, particularly a kind of welding method of yttrium based high-temperature superconductive strip.
Background technology
Superconducting tape have current capacity superpower, there is no the plurality of advantages such as thermal losses, can be widely used in electric power unemployed in improve equipment performance.According to the difference of material and processing technology, it is that superconducting tape and bismuth are two kinds of superconducting tapes that current belt material of high temperature superconduct is mainly divided into yttrium.Yttrium is superconducting tape as belt material of high temperature superconduct of new generation (two generation superconducting tape), has better electrical property and mechanical performance than generation Bi-based high-temperature superconductive strip.The production of band at present has realized industrialization, and obtains certain application in a lot of practical engineering project.
Yttrium is that superconducting tape product is generally the unit length of 100 m or 200 m, needs in actual applications to connect.For the connection of yttrium based high-temperature superconductive strip, be mainly to adopt the mode of solder, existing welding method is taking the method for SuperPower company as main, and its operation principle is as follows:
1. by two generation belt material of high temperature superconduct surface wiped clean of need welding;
2. general business scolder (as 40Pb-60Sn) and indium all may be utilized;
Two generation superconducting tape superconduction face coat scolder;
By one section two generation superconducting tape superconduction face be gently pressed on the superconduction face of another section two generations superconducting tape, then appropriate heating, makes solder fusing;
5. welding temperature can not be higher than 250
oin the situation of C, particularly long time treatment (several hours), superconductivity is degenerated preventing.
The problem that this welding method exists is: for yttrium based high-temperature superconductive strip, one side is superconduction face, and another side is base band face.While adopting conventional softer method for welding to weld, realization be superconduction face and the welding of superconduction face, its welding heat is to conduct to superconduction face by base band face, and then on solder in the superconduction face of conducting to interlayer, realizes fusing and the wetting and spreading of solder.And the base band that yttrium is superconducting tape is stainless steel material, poor thermal conductivity.Tradition heat conduction needs long-time heating just can make enough heats conduct to solder to make its fusing.And superconducting layer in yttrium based high-temperature superconductive strip is a kind of lattice structure of Cu oxide, its chemical formula is YBa
2cu
3o
{ 7-x}.Its superconducting property and x value (oxygen content) have much relations, only have the material that meets 0≤x≤0.5 under critical-temperature, just to have superconductivity.If heat is too high in welding process, or the heat time is long, can cause the oxygen atom metering in YBCO lattice structure to reduce, thereby have a strong impact on its superconductivity.Therefore, in the time of welding yttrium based high-temperature superconductive strip, need strict its heating-up temperature (<250 that controls at present
oc), and because of stainless steel material poor thermal conductivity keep away unavoidable long-time heating (several hours).So on the one hand, too low temperature may cause solder not melt completely, produces rosin joint etc., affects property of welded joint; On the other hand superconducting tape long-time heating is probably affected the superconductivity of band.
Summary of the invention
In order to solve an above-mentioned engineering difficult problem for welding yttrium based high-temperature superconductive strip, the invention provides a kind of soft soldering method of indirect, realize the welding that short time heating (a few minutes) completes yttrium based high-temperature superconductive strip, ensure that band superconductivity is unaffected, property of welded joint is good simultaneously, welding resistance is low, and yield rate is high.
Technical scheme of the present invention is:
A welding method for yttrium based high-temperature superconductive strip, is characterized in that step is as follows:
Step 1, is fixed on one section of dual-side that needs the long band of yttrium system high-temperature superconducting of welding with two sections of short bands of yttrium system high-temperature superconducting, and two sections of short bands of yttrium system high-temperature superconducting and the long band of yttrium system high-temperature superconducting form sprawls plane domain;
Step 2, will sprawl formation on plane domain with scolding tin mode of heating and overlap region described in smooth solder spreading into;
Step 3, needs the long band of yttrium system high-temperature superconducting of welding to be overlapped on the overlap joint region of the long band of described yttrium system high-temperature superconducting another section, makes the long band of described two sections of yttrium system high-temperature superconductings have lap;
Step 4, respectively to the solder heating on the overlap joint region of two sections of short bands of yttrium system high-temperature superconducting, conduct heat and make two sections of yttrium system high-temperature superconducting length with the solder fusing between lap by solder self, two sections of yttrium system high-temperature superconducting length, with the rear wetting and spreading of solder fusing between lap, make the long band of two sections of yttrium system high-temperature superconductings weld together by the solder between lap;
Step 5, heats the solder between the long band of two sections of short bands of yttrium system high-temperature superconducting and two sections of yttrium system high-temperature superconductings, by two sections of short bands of yttrium system high-temperature superconducting dial from, the solders between the long band of two sections of yttrium system high-temperature superconductings are solidified, complete superconducting tape welding.
The connection resistance of being with by two sections of yttrium system high-temperature superconductings length that obtain after this welding method welding is lower than 2 × 10
-7Ω.
In step 3, adopt shape-setting clamp fixing long two sections of yttrium system high-temperature superconductings band, and keep certain pressure; Here also can adopt other pressuring methods to be fixed pressurization, not adopt shape-setting clamp to be fixed pressurization.
Described shape-setting clamp is fixed the size of the long pressure of being with of two sections of yttrium system high-temperature superconductings between 1 MPa-20 MPa.
In described step 4 and step 5, use electric soldering iron to heat, or other mode of heatings (for example hair dryer).
beneficial effect of the present invention is as follows:
1. this method is by the mode of indirect, and electric soldering iron does not directly contact the superconducting tape that needs welding, and the heat time is short, can not affect band superconductivity;
2. property of welded joint is good, and without rosin joint, band welding point resistance is low;
3. adopt indirect mode, welding temperature do not had to special requirement, ensure simultaneously weld heating on band superconductivity without impact;
4. pair scolder does not have special requirement;
5. play styling by shape-setting clamp or other pressuring methods, effectively prevent that superconducting tape weldment is subjected to displacement in the time that solder melts.
Detailed description of the invention
A welding method for yttrium based high-temperature superconductive strip, its step is as follows:
Step 1, is fixed on one section of dual-side that needs the long band of yttrium system high-temperature superconducting of welding with two sections of short bands of yttrium system high-temperature superconducting or the suitable material of welding performance, and two sections of short bands of yttrium system high-temperature superconducting and the long band of yttrium system high-temperature superconducting form sprawls plane domain;
Step 2, will sprawl formation on plane domain by the mode (or mode of other Fast Heating) of scolding tin heating and overlap region described in smooth solder spreading into;
Step 3, need the long band of yttrium system high-temperature superconducting of welding to be overlapped on the overlap joint region of the long band of described yttrium system high-temperature superconducting another section, make the long band of described two sections of yttrium system high-temperature superconductings there is lap, and use shape-setting clamp fixing long two sections of yttrium system high-temperature superconductings band, and keep certain pressure; Described shape-setting clamp is fixed the size of the long pressure of being with of two sections of yttrium system high-temperature superconductings between 1 MPa-20 MPa; Here also can adopt other pressuring methods to be fixed pressurization, not adopt shape-setting clamp to be fixed pressurization.
Step 4, with electric soldering iron respectively to the solder heating on the overlap joint region of two sections of short bands of yttrium system high-temperature superconducting, conduct heat and make two sections of yttrium system high-temperature superconducting length with the solder fusing between lap by solder self, two sections of yttrium system high-temperature superconducting length, with the rear wetting and spreading of solder fusing between lap, make the long band of two sections of yttrium system high-temperature superconductings weld together by the solder between lap;
Step 5, with the solder between the long band of two sections of short bands of yttrium system high-temperature superconducting of electric soldering iron heating and two sections of yttrium system high-temperature superconductings, by two sections of short bands of yttrium system high-temperature superconducting dial from, the solders between the long band of two sections of yttrium system high-temperature superconductings are solidified, complete superconducting tape and weld.
The connection resistance of being with by two sections of yttrium system high-temperature superconductings length that obtain after this welding method welding is lower than 2 × 10
-7Ω.
Claims (2)
1. a welding method for yttrium based high-temperature superconductive strip, is characterized in that step is as follows:
Step 1, is fixed on one section of dual-side that needs the long band of yttrium system high-temperature superconducting of welding with two sections of short bands of yttrium system high-temperature superconducting, and two sections of short bands of yttrium system high-temperature superconducting and the long band of yttrium system high-temperature superconducting form sprawls plane domain;
Step 2, will sprawl formation on plane domain with scolding tin mode of heating and overlap region described in smooth solder spreading into;
Step 3, needs the long band of yttrium system high-temperature superconducting of welding to be overlapped on the overlap joint region of the long band of described yttrium system high-temperature superconducting another section, makes the long band of described two sections of yttrium system high-temperature superconductings have lap;
Step 4, respectively to the solder heating on the overlap joint region of two sections of short bands of yttrium system high-temperature superconducting, conduct heat and make two sections of yttrium system high-temperature superconducting length with the solder fusing between lap by solder self, two sections of yttrium system high-temperature superconducting length, with the rear wetting and spreading of solder fusing between lap, make the long band of two sections of yttrium system high-temperature superconductings weld together by the solder between lap;
Step 5, heats the solder between the long band of two sections of short bands of yttrium system high-temperature superconducting and two sections of yttrium system high-temperature superconductings, by two sections of short bands of yttrium system high-temperature superconducting dial from, the solders between the long band of two sections of yttrium system high-temperature superconductings are solidified, complete superconducting tape welding;
In step 3, adopt the mode of shape-setting clamp or other fixing pressurizations fixing long two sections of yttrium system high-temperature superconductings band, and keep certain pressure; Described shape-setting clamp is fixed the size of the long pressure of being with of two sections of yttrium system high-temperature superconductings between 1 MPa-20 MPa.
2. welding method according to claim 1, is characterized in that: the connection resistance of being with by two sections of yttrium system high-temperature superconductings length that obtain after this welding method welding is lower than 2 × 10
-7Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210372964.XA CN102837093B (en) | 2012-09-29 | 2012-09-29 | Welding method for yttrium series high-temperature superconducting tape |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210372964.XA CN102837093B (en) | 2012-09-29 | 2012-09-29 | Welding method for yttrium series high-temperature superconducting tape |
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|---|---|
| CN102837093A CN102837093A (en) | 2012-12-26 |
| CN102837093B true CN102837093B (en) | 2014-11-05 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170699A (en) * | 2013-03-07 | 2013-06-26 | 中国科学院等离子体物理研究所 | Welding device and welding method for high temperature superconducting strip |
| CN106451029B (en) * | 2016-09-22 | 2018-07-13 | 合肥聚能电物理高技术开发有限公司 | Superconducting joint indium silk lap device and its lap joint process |
| CN108555428B (en) * | 2018-05-29 | 2019-12-31 | 北京交通大学 | Preparation method and application of metal-based nano composite solder |
| CN108796477B (en) * | 2018-05-29 | 2020-01-14 | 北京交通大学 | Preparation method of yttrium-series high-temperature superconducting tape with surface porous structure |
| CN109352110B (en) * | 2018-09-29 | 2020-09-15 | 北京交通大学 | Welding device for joints between superconductive belt materials |
| CN112331402A (en) * | 2020-10-13 | 2021-02-05 | 深圳供电局有限公司 | High-temperature superconducting cable electrifying conductor |
| CN112331403A (en) * | 2020-10-13 | 2021-02-05 | 深圳供电局有限公司 | Method for manufacturing high-temperature superconducting cable electrified conductor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02252664A (en) * | 1988-11-25 | 1990-10-11 | Hitachi Ltd | Oxide-based high-temperature superconducting conjugate and method for joining |
| US5082164A (en) * | 1990-08-01 | 1992-01-21 | General Electric Company | Method of forming superconducting joint between superconducting tapes |
| CN1515377A (en) * | 2003-01-10 | 2004-07-28 | 北京英纳超导技术有限公司 | Welding method of Bi system high-temp. superconductive tape material |
| CN101412133A (en) * | 2008-10-15 | 2009-04-22 | 清华大学 | Tip-off method of electron device and tip-off device thereof |
| CN101979204A (en) * | 2010-11-01 | 2011-02-23 | 哈尔滨工业大学 | Indirect-heating braze-welding method for packaging shell with thermal sensitive element |
-
2012
- 2012-09-29 CN CN201210372964.XA patent/CN102837093B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02252664A (en) * | 1988-11-25 | 1990-10-11 | Hitachi Ltd | Oxide-based high-temperature superconducting conjugate and method for joining |
| US5082164A (en) * | 1990-08-01 | 1992-01-21 | General Electric Company | Method of forming superconducting joint between superconducting tapes |
| CN1515377A (en) * | 2003-01-10 | 2004-07-28 | 北京英纳超导技术有限公司 | Welding method of Bi system high-temp. superconductive tape material |
| CN101412133A (en) * | 2008-10-15 | 2009-04-22 | 清华大学 | Tip-off method of electron device and tip-off device thereof |
| CN101979204A (en) * | 2010-11-01 | 2011-02-23 | 哈尔滨工业大学 | Indirect-heating braze-welding method for packaging shell with thermal sensitive element |
Non-Patent Citations (2)
| Title |
|---|
| Bi-Sr-Ca-Cu-O高温超导材料的连接技术;邹贵生等;《金属热处理》;20061231;第31卷(第6期);第1-9页 * |
| 邹贵生等.Bi-Sr-Ca-Cu-O高温超导材料的连接技术.《金属热处理》.2006,第31卷(第6期),第1-9页. * |
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| CN102837093A (en) | 2012-12-26 |
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Effective date of registration: 20180425 Address after: 610000 18 West core road, hi-tech West District, Chengdu, Sichuan Patentee after: Dongfang Electric Co., Ltd. Address before: 610036 Shu Han Road, Jinniu District, Chengdu, Sichuan Province, No. 333 Patentee before: Dongfang Electric Corporation |