CN104175030B - Superconducting tape welder - Google Patents
Superconducting tape welder Download PDFInfo
- Publication number
- CN104175030B CN104175030B CN201410401430.4A CN201410401430A CN104175030B CN 104175030 B CN104175030 B CN 104175030B CN 201410401430 A CN201410401430 A CN 201410401430A CN 104175030 B CN104175030 B CN 104175030B
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- top board
- protuberance
- lower platen
- superconducting tape
- accepting groove
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Classifications
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- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/003—Cooling means
-
- 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
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0408—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work for planar work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
The invention provides a kind of superconducting tape welder, comprise lower platen and top board moving up and down, lower platen comprises lower platen body and the first protuberance, first protuberance is provided with the first accepting groove, top board comprises top board body and the second protuberance, second protuberance is provided with the second accepting groove, and the first accepting groove and the alignment of the second accepting groove are arranged; The heating element heater laying respectively at the upper and lower both sides of welding region or wherein side is provided with in top board body and/or in lower platen body, heating element heater is connected with temperature control system, also offer the pore laying respectively at the upper and lower both sides of welding region in top board body He in lower platen body, pore is connected with cooling device.Two superconducting tapes to be welded can accurately be superimposed together by this superconducting tape welder up and down, thus greatly improve overlap joint precision; In addition, controlled the heating temp of heating element heater by temperature control system, accurately to control welding temperature, the quick cooling after welding can be realized by pore, thus ensure welding quality.
Description
Technical field
The present invention relates to the fabricating tools equipment in a kind of high-temperature superconductive cable industry, particularly relate to a kind of superconducting tape welder.
Background technology
Superconducting tape has that current capacity is strong, heat waste is low or without plurality of advantages such as heat wastes, can be widely used in the fields such as electric power transfer, large-scale magnet and superconducting motor, makes hyperconductive cable as being wound around with superconducting tape.But due to the limited length of the superconducting tape of actual production, and the length of superconducting tape in actual application is different again, therefore unavoidably will carry out soldering to superconducting tape when applying superconducting tape.
At present, the welding manner of traditional superconducting tape is generally operator's manual welding, but this kind of manual welding mode all has larger operation easier in control welding temperature and overlap joint precision, and the superconducting tape of practical application all has comparatively harsh requirement to welding temperature and overlap joint precision.Wherein, the temperature of Bi frenulum material controls general directly related with welding of its enhancement Layer, and for the superconducting tape of AMSC company, its welding temperature will control between 140 DEG C ~ 169 DEG C; And the welding temperature of yttrium based high-temperature superconductive strip will control within 250 DEG C, consider the factor of its enhancement Layer simultaneously, actual welding temperature generally needs lower than 250 DEG C, and welding temperature scope is less, therefore adopt the mode of manual welding to be difficult to ensure that welding temperature controls in the scope needed, thus reduce welding quality.In addition, compacting degree between the welding quality of superconducting tape two superconducting tapes also and in welding process is closely related, and the mode of manual welding is difficult to guarantee two superconducting tapes presses level in welding process, it can thus be appreciated that there is more many-sided weak point in human weld's mode of passing on Gong.
For this reason, application number be 200310101459.2 Chinese invention patent application description disclose a kind of welder of superconducting tape, this welder comprises by pedestal, track base, longitudinal register slide block, the positioner that longitudinal register bumping post and width locating piece are formed, by pressurization slide block, the pressue device that pressure rod and pressurizing block are formed, and by heating rod, the heating apparatus that temperature sensor and temperature controller are formed, this welder can realize superconducting tape end rapid welding, and the control of welding temperature can be realized, but, its structure relative complex, it can not ensure the overlap joint precision between two superconducting tapes to be welded well in addition, thus affect welding quality.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of structure simple and the superconducting tape welder that accurately can control welding temperature and overlap precision, can realize Fast Heating and cool fast.
For achieving the above object, the invention provides a kind of superconducting tape welder, comprise lower platen and top board moving up and down, the first protuberance that described lower platen comprises lower platen body and projects upwards from lower platen body, described first protuberance is provided with the first accepting groove of downward-extension, described top board comprises top board body and the second protuberance outstanding from top board body downwards, described second protuberance is provided with the second accepting groove of downward-extension, described first accepting groove and the second accepting groove are all for accommodating superconducting tape, and the first accepting groove and the alignment of the second accepting groove are arranged, described lower platen body offers the gathering sill suitable with the second protuberance, described lower platen body, the first protuberance, between top board body and the second protuberance, form a welding region, the heating element heater laying respectively at the upper and lower both sides of welding region or wherein side is provided with in described top board body and/or in lower platen body, described heating element heater is connected with a temperature control system, also offer the pore laying respectively at the upper and lower both sides of welding region in described top board body He in lower platen body, described pore is connected with a cooling device.
Preferably, described first protuberance is also provided with extend before and after one first pick and place passage, described first accepting groove is positioned at first and picks and places the rear end of passage and both form the first draw-in groove, and the described first front end picking and placeing passage is the first opening; Described second protuberance is also provided with extend before and after one second pick and place passage, described second accepting groove is positioned at second and picks and places the rear end of passage and both form the second draw-in groove, and the described second front end picking and placeing passage is the second opening.
Further, be equipped with the compressing tablet that is positioned at welding region on the lower surface of described top board body and on the upper surface of lower platen body, described compressing tablet is made up of the material of high temperature resistant and not sticky tin.
Preferably, the material of described compressing tablet is pottery or rubber or silica gel, and the heat resisting temperature of compressing tablet is not less than 250 DEG C.
Further, described compressing tablet also has elasticity.
Preferably, the material of described compressing tablet is rubber or silica gel, and the heat resisting temperature of compressing tablet is not less than 250 DEG C.
Further, described first protuberance is hinged with one and is positioned at depression bar above top board body, offer a chute extended along depression bar length direction in this depression bar, the upper end of described top board body is fixed with a connecting rod, and this connecting rod upper end is placed in chute and hinged with depression bar.
Preferably, described heating element heater is frequency heating element.
Preferably, described lower platen body and the first protuberance are structure as a whole, and top board body and the second protuberance are also structure as a whole.
As mentioned above, the superconducting tape welder that the present invention relates to, has following beneficial effect:
Two superconducting tapes to be welded are fixed respectively by the first accepting groove and the second accepting groove in this superconducting tape welder, top board can move up and down, when welding, top board moves down, be pressed on lower platen, because the first accepting groove and the second accepting groove are settings of mutually aliging, therefore two superconducting tapes to be welded can accurately be superimposed together up and down, thus greatly improve and overlap precision; In addition, controlled the heating temp of heating element heater by temperature control system, accurately to control welding temperature, the quick cooling after welding can be realized by pore, thus ensure welding quality.Further, this superconducting tape welder overall structure is simply compact, facilitate processing and manufacturing, and manufacturing cost is lower, thus is convenient to it and applies.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is that the A-A of lower platen in Fig. 1 is to sectional view.
Fig. 3 is that the B-B of top board in Fig. 1 is to sectional view.
Element numbers explanation
1 lower platen
11 lower platen bodies
12 first protuberances
13 first accepting grooves
14 gathering sills
15 first pick and place passage
16 first openings
2 top boards
21 top board bodies
22 second protuberances
23 second accepting grooves
24 second pick and place passage
25 second openings
3 welding regions
4 compressing tablets
6 depression bars
61 chutes
7 connecting rods
8 heating element heaters
9 pores
10 superconducting tapes
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this description can understand other advantages of the present invention and effect easily.
Notice, structure, ratio, size etc. that this description institute accompanying drawings illustrates, content all only in order to coordinate description to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this description as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
The invention provides a kind of superconducting tape welder, for being welded together by two superconducting tapes 10.As shown in Figure 1 to Figure 3, this superconducting tape welder comprises fixed lower platen 1 and top board moving up and down 2, the first protuberance 12 that described lower platen 1 comprises lower platen body 11 and projects upwards from lower platen body 11, described first protuberance 12 is provided with the first accepting groove 13 of downward-extension, described top board 2 comprises top board body 21 and the second protuberance 22 outstanding from top board body 21 downwards, described second protuberance 22 is provided with the second accepting groove 23 of downward-extension, described first accepting groove 13 and the second accepting groove 23 are all for accommodating superconducting tape 10, and the first accepting groove 13 and the alignment of the second accepting groove 23 are arranged, described lower platen body 11 offers the gathering sill 14 suitable with the second protuberance 22, described lower platen body 11, first protuberance 12, between top board body 21 and the second protuberance 22, form a welding region 3, the heating element heater 8 laying respectively at welding region about 3 both sides or wherein side is provided with in described top board body 21 and/or in lower platen body 11, described heating element heater 8 is connected with a temperature control system, is namely only provided with the heating element heater 8 be positioned on the upside of welding region 3 in top board body 21, or be only provided with the heating element heater 8 be positioned on the downside of welding region 3 in lower platen body 11, or be provided with the heating element heater 8 that is arranged on the upside of welding region 3 in top board body 21 and lower platen body 11 is provided with the heating element heater 8 be positioned on the downside of welding region 3, also offer the pore 9 laying respectively at welding region about 3 both sides in described top board body 21 He in lower platen body 11, described pore 9 has multiple, and described pore 9 is connected with a cooling device.
In the superconducting tape welder that the present invention relates to, described first accepting groove 13 and the second accepting groove 23 are upper and lower, front and back alignment is arranged, and be arranged side by side about both, namely from the side of this welder, the vertical central axis of described first accepting groove 13 and the vertical central axis of the second accepting groove 23 coincide, in addition, the width d1 of described first accepting groove 13 is equal with the width of the superconducting tape 10 be housed in the first accepting groove 13, the width d2 of the second accepting groove 23 is also equal with the width of the superconducting tape 10 be housed in the second accepting groove 23, after like this superconducting tape 10 being put into the first accepting groove 13 and the second accepting groove 23, move up and down in process at top board 2, skew before and after superconducting tape 10 can not occur, to improve welding quality.
When welding, first move on top board 2, the upper surface of the lower surface of top board 2 and lower platen 1 is separated, operator puts into the first accepting groove 13 and the second accepting groove 23 respectively by needing two superconducting tape 10 ends be welded to connect after upper tin, and the end of the superconducting tape 10 of upper tin is placed in welding region 3, as shown in Figure 1, tin on the right-hand member being namely placed on the superconducting tape 10 in the first accepting groove 13, and this end is placed in welding region 3; And tin on the left end being placed on the superconducting tape 10 in the second accepting groove 23, and this end is placed in welding region 3; After placement completes, two superconducting tape 10 consistencies from top to bottom are stacked together.Top board 2 moves down, due to the first accepting groove 13 and the second accepting groove 23 for consistency from top to bottom is arranged and superconducting tape 10 in the second accepting groove 23 is positioned at the lower end of the second accepting groove 23 in an initial condition, therefore top board 2 moves down rear two superconducting tapes 10 to be welded can accurately be superimposed together up and down, front-back staggered can not be there is between the two, to ensure the bonding area between two superconducting tapes 10, thus greatly improve overlap joint precision.Simultaneously, in the folding process of top board 2, second protuberance 22 of top board 2 can stretch in the gathering sill 14 on lower platen body 11, this gathering sill 14 1 aspect is to provide one to move down space to the second protuberance 22, on the other hand by the stationarity that can ensure that top board 2 moves down that cooperatively interacts of gathering sill 14 and the second protuberance 22, improve overlap joint precision further.During welding, switch on power, described temperature control system is used for control inputs to the electric current of heating element heater 8, thus controls the heating temp of heating element heater 8, namely controls welding temperature; Heating element heater 8 generates heat, and makes the tin melted by heat of two superconducting tape 10 ends, thus completes the welding of two superconducting tapes 10.After welding terminates, open cold radiator cooler, then cooling medium is passed into the pad place of two superconducting tapes 10 by cooling device by pore 9, cools fast with butt welding contact, thus ensures welding quality; Described cooling medium can be refrigerating gas, also can be cooling liquid.After cooling terminates, lift top board 2, superconducting tape 10 is taken out.
In the present embodiment, described heating element heater 8 is frequency heating element, and to improve the efficiency of heating surface and firing rate, and energy consumption is low, is conducive to energy-conserving and environment-protective; In addition, described lower platen 1 and top board 2 are made up of nonmetallic materials, or, be at least made up of nonmetallic materials for the lower platen body 11 of fixing heating element heater 8 and top board body 21.Described lower platen body 11 and the first protuberance 12 are structure as a whole, top board body 21 and the second protuberance 22 are also structure as a whole, to simplify the overall structure of this welder further, make this welder facilitate processing and manufacturing, manufacturing cost lower, thus be convenient to it and apply.
Preferably, as shown in Figures 2 and 3, for the ease of superconducting tape 10 being put into the first protuberance 12 and the second protuberance 22, described first protuberance 12 is also provided with extension before and after first picks and places passage 15, described first accepting groove 13 is positioned at first and picks and places the rear end of passage 15 and both form the first draw-in groove, and the described first front end picking and placeing passage 15 is the first opening 16; Described second protuberance 22 is also provided with extend before and after one second pick and place passage 24, described second accepting groove 23 is positioned at second and picks and places the rear end of passage 24 and both form the second draw-in groove, and the described second front end picking and placeing passage 24 is the second opening 25; Described first front end picking and placeing passage 15 extends to forward the front surface place of the first protuberance 12, and the described second front end picking and placeing passage 24 also extends to forward the front surface place of the second protuberance 22.When superconducting tape 10 is put into lower platen 1, passage 15 can be picked and placeed by the first opening 16, first successively and superconducting tape 10 is put into the first accepting groove 13; When superconducting tape 10 is put into top board 2, passage 24 can be picked and placeed by the second opening 25, second successively and superconducting tape 10 is put into the second accepting groove 23.In the present embodiment, the upper end of described first accepting groove 13 extends upwardly to the rear end that first picks and places passage 15, and the lower end of the second accepting groove 23 extends downward the rear end that second picks and places passage 24.Therefore after welding completes, top board 2 is upwards lifted, weld together two superconducting tapes 10 can be taken out from the first draw-in groove and the second draw-in groove.
Further, see Fig. 1, described first protuberance 12 is hinged with one and is positioned at depression bar 6 above top board body 21, a chute 61 extended along depression bar 6 length direction is offered in this depression bar 6, the upper end of described top board body 21 is fixed with a connecting rod 7, and this connecting rod 7 upper end is placed in chute 61 and hinged with depression bar 6, and the upper end of described connecting rod 7 can slidably reciprocate along chute 61, therefore by lift or lower moulded rod 6 can on move or move down top board 2, operation is very easy.And in welding process, push down top board 2 by pushing down depression bar 6, thus the thrust to superconducting tape 10 is provided.
Further, as shown in Figure 1, the compressing tablet 4 that one is positioned at welding region 3 is equipped with on the lower surface of described top board body 21 and on the upper surface of lower platen body 11, described compressing tablet 4 is made up of the material of high temperature resistant and not sticky tin, in welding region 3, superconducting tape 10 to be welded contacts with compressing tablet 4, because the material of compressing tablet 4 by high temperature resistant and not sticky tin is made, therefore after having welded, superconducting tape 10 can not weld together with compressing tablet 4, thus prevent superconducting tape 10 and welder from welding together, so that the taking-up of superconducting tape 10.Preferably, the material of described compressing tablet 4 is pottery or rubber or silica gel, and the heat resisting temperature of compressing tablet 4 is not less than 250 DEG C.
Further, in order to ensure the thrust of compressing tablet 4 pairs of superconducting tapes 10, described compressing tablet 4 also has elasticity, and now, the material of compressing tablet 4 is rubber or silica gel, and the heat resisting temperature of compressing tablet 4 is not less than 250 DEG C, therefore in welding process, by pressing down top board 2, the thrust of compressing tablet 4 pairs of superconducting tapes 10 can be ensured, two superconducting tapes 10 are reliably pressed together, to ensure welding quality in welding process.
In sum, the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (9)
1. a superconducting tape welder, it is characterized in that: comprise lower platen (1) and top board moving up and down (2), the first protuberance (12) that described lower platen (1) comprises lower platen body (11) and projects upwards from lower platen body (11), described first protuberance (12) is provided with first accepting groove (13) of downward-extension, described top board (2) comprises top board body (21) and the second protuberance (22) outstanding from top board body (21) downwards, described second protuberance (22) is provided with second accepting groove (23) of downward-extension, described first accepting groove (13) and the second accepting groove (23) are all for accommodating superconducting tape (10), and the first accepting groove (13) and the second accepting groove (23) alignment are arranged, described lower platen body (11) offers the gathering sill (14) suitable with the second protuberance (22), described lower platen body (11), first protuberance (12), a welding region (3) is formed between top board body (21) and the second protuberance (22), the heating element heater (8) laying respectively at welding region (3) up and down both sides or wherein side is provided with in described top board body (21) and/or in lower platen body (11), described heating element heater (8) is connected with a temperature control system, the pore (9) laying respectively at the upper and lower both sides of welding region (3) is also offered in described top board body (21) and in lower platen body (11), described pore (9) is connected with a cooling device.
2. superconducting tape welder according to claim 1, it is characterized in that: described first protuberance (12) is also provided with extension before and after first picks and places passage (15), described first accepting groove (13) is positioned at first and picks and places the rear end of passage (15) and both form the first draw-in groove, and the described first front end picking and placeing passage (15) is the first opening (16); Described second protuberance (22) is also provided with extension before and after second picks and places passage (24), described second accepting groove (23) is positioned at second and picks and places the rear end of passage (24) and both form the second draw-in groove, and the described second front end picking and placeing passage (24) is the second opening (25).
3. superconducting tape welder according to claim 1, it is characterized in that: be equipped with the compressing tablet (4) that is positioned at welding region (3) on the lower surface of described top board body (21) and on the upper surface of lower platen body (11), described compressing tablet (4) is made up of the material of high temperature resistant and not sticky tin.
4. superconducting tape welder according to claim 3, is characterized in that: the material of described compressing tablet (4) is pottery or rubber or silica gel, and the heat resisting temperature of compressing tablet (4) is not less than 250 DEG C.
5. superconducting tape welder according to claim 3, is characterized in that: described compressing tablet (4) also has elasticity.
6. superconducting tape welder according to claim 5, is characterized in that: the material of described compressing tablet (4) is rubber or silica gel, and the heat resisting temperature of compressing tablet (4) is not less than 250 DEG C.
7. superconducting tape welder according to claim 1, it is characterized in that: described first protuberance (12) is hinged with the depression bar (6) that is positioned at top board body (21) top, a chute (61) extended along depression bar (6) length direction is offered in this depression bar (6), the upper end of described top board body (21) is fixed with a connecting rod (7), and this connecting rod (7) upper end is placed in chute (61) and hinged with depression bar (6).
8. superconducting tape welder according to claim 1, is characterized in that: described heating element heater (8) is frequency heating element.
9. superconducting tape welder according to claim 1, it is characterized in that: described lower platen body (11) and the first protuberance (12) are structure as a whole, top board body (21) and the second protuberance (22) are also structure as a whole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410401430.4A CN104175030B (en) | 2014-08-14 | 2014-08-14 | Superconducting tape welder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410401430.4A CN104175030B (en) | 2014-08-14 | 2014-08-14 | Superconducting tape welder |
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| CN104175030A CN104175030A (en) | 2014-12-03 |
| CN104175030B true CN104175030B (en) | 2015-10-28 |
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|---|---|---|---|---|
| CN105618967A (en) * | 2016-03-01 | 2016-06-01 | 西南交通大学 | Welding device for high-temperature superconducting coating strip joint with extremely low resistance |
| CN106654391B (en) * | 2017-01-20 | 2020-12-11 | 宁德时代新能源科技股份有限公司 | Hot press unit for electricity core |
| CN107552912B (en) * | 2017-10-20 | 2020-03-17 | 上海应用技术大学 | High-temperature superconducting strip and copper terminal counter weight self-compaction tin welding device and welding method |
| CN108453361A (en) * | 2018-05-21 | 2018-08-28 | 西安聚能超导磁体科技有限公司 | A kind of welder and its welding method of high-temperature superconductor band connector |
| CN111146094B (en) * | 2019-12-04 | 2021-08-31 | 中国电子科技集团公司第十三研究所 | Gallium nitride power module packaging method and pressurizing device |
| CN112917039A (en) * | 2021-02-10 | 2021-06-08 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Welding method of step-shaped structure microstrip substrate |
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| US5239156A (en) * | 1991-09-27 | 1993-08-24 | General Electric Company | Apparatus and method for laser joining of superconducting tapes |
| JPH06285621A (en) * | 1993-04-07 | 1994-10-11 | Nippon Steel Corp | Joining method for metallic superconductive multilayer composite plate |
| 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 |
| JP2011003382A (en) * | 2009-06-18 | 2011-01-06 | Sumitomo Electric Ind Ltd | Connection method and connection device of superconducting wire rod |
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| JPH0244661A (en) * | 1988-08-03 | 1990-02-14 | Toshiba Corp | Connecting device for current path |
| US5239156A (en) * | 1991-09-27 | 1993-08-24 | General Electric Company | Apparatus and method for laser joining of superconducting tapes |
| JPH06285621A (en) * | 1993-04-07 | 1994-10-11 | Nippon Steel Corp | Joining method for metallic superconductive multilayer composite plate |
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| JP2011003382A (en) * | 2009-06-18 | 2011-01-06 | Sumitomo Electric Ind Ltd | Connection method and connection device of superconducting wire rod |
| CN204035830U (en) * | 2014-08-14 | 2014-12-24 | 上海电缆研究所 | Superconducting tape welder |
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| CN104175030A (en) | 2014-12-03 |
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