CN104175030A - Superconducting strip welding device - Google Patents
Superconducting strip welding device Download PDFInfo
- Publication number
- CN104175030A CN104175030A CN201410401430.4A CN201410401430A CN104175030A CN 104175030 A CN104175030 A CN 104175030A CN 201410401430 A CN201410401430 A CN 201410401430A CN 104175030 A CN104175030 A CN 104175030A
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- CN
- China
- Prior art keywords
- protuberance
- top board
- superconducting tape
- lower platen
- accepting groove
- Prior art date
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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
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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
- 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
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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
- B23K37/04—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
Abstract
The invention provides a superconducting strip welding device which comprises a lower pressure plate and an upper pressure plate capable of moving up and down, wherein the lower pressure plate includes a lower pressure plate body and a first protrusion part; a first accommodating groove is formed in the first protrusion part; the upper pressure plate includes an upper pressure plate body and a second protrusion part; a second accommodating groove is formed in the second protrusion part; the first accommodating groove and the second accommodating groove are aligned; heating elements which are respectively positioned on the upper side and the lower side of a welding area, or a heating element which is positioned on one side of the welding area are/is arranged in the upper pressure plate body and/or the lower pressure plate body; the heating element(s) is/are connected with a temperature control system; air holes respectively positioned in the upper side and the lower side of the welding area are respectively formed in the upper pressure plate body and the lower pressure plate body and are connected with a cooling unit. Through the superconducting strip welding device, two superconducting strips to be welded can be accurately overlapped in the longitudinal direction, so that the lapping accuracy is greatly improved; in addition, the heating temperature of the heating elements is controlled through a temperature control system, so that the welding temperature is accurately controlled; after welding, the device can be quickly cooled off through the air holes, as a result, the welding quality is guaranteed.
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, as being wound around and making hyperconductive cable with superconducting tape.But due to the limited length of the superconducting tape of actual production, and the length of the superconducting tape in actual application is different again, therefore unavoidably will carry out soldering to superconducting tape when application 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 aspect 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 is controlled general directly related with the welding of its enhancement Layer, and the superconducting tape of AMSC company of take is example, and its welding temperature will be controlled between 140 ℃～169 ℃; And the welding temperature of yttrium based high-temperature superconductive strip will be controlled in 250 ℃, consider the factor of its enhancement Layer simultaneously, actual welding temperature generally need to be lower than 250 ℃, and welding temperature scope is less, therefore adopt the mode of manual welding to be difficult to guarantee that welding temperature is controlled in the scope needing, thereby reduce welding quality.In addition, between two superconducting tapes of the welding quality of superconducting tape also and in welding process to press degree closely related, and the mode of manual welding be difficult to guarantee that two superconducting tapes press level in welding process, hence one can see that, and the artificial welding manner of passing on Gong exists more many-sided weak point.
For this reason, application number is the welder that 200310101459.2 Chinese invention patent application description discloses a kind 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 form, by pressurization slide block, the pressue device that pressure rod and pressurizing block form, and by heating rod, the heating apparatus that temperature sensor and temperature controller form, this welder can be realized superconducting tape end rapid welding, and can realize the control of welding temperature, but, its structure relative complex, it can not guarantee two overlap joint precision between superconducting tape to be welded well in addition, thereby 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 simple in structure and can accurately control welding temperature and overlap joint precision, can realize Fast Heating and cooling superconducting tape welder 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, described lower platen comprises lower platen body and the first protuberance projecting upwards from lower platen body, described the first protuberance is provided with the first accepting groove of downward-extension, the second protuberance that described top board comprises top board body and gives prominence to downwards from top board body, described the second protuberance is provided with the second accepting groove of downward-extension, described the 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 arrange, on described lower platen body, offer the gathering sill suitable with the second protuberance, between described lower platen body, the first protuberance, top board body and the second protuberance, form a welding region, in described top board body and/or in lower platen body, be provided with and lay respectively at the upper and lower both sides of welding region or the heating element heater of a side wherein, described heating element heater is connected with a temperature control system, in described top board body He in lower platen body, also offer the pore that lays respectively at the upper and lower both sides of welding region, described pore is connected with a cooling device.
Preferably, what on described the first protuberance, be also provided with that front and back extend first picks and places passage, and described the 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 that picks and places passage is the first opening; What on described the second protuberance, be also provided with that front and back extend second picks and places passage, and described the 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 that picks and places passage is the second opening.
Further, be equipped with a 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 by material 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 ℃.
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 ℃.
Further, on described the first protuberance, be hinged with a depression bar that is positioned at top board body top, in this depression bar, offer a chute extending along depression bar length direction, 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 high-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 the present invention relates to, has following beneficial effect:
In this superconducting tape welder, by the first accepting groove and the second accepting groove, fix two superconducting tapes to be welded respectively, 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 that alignment arranges mutually, thus two superconducting tapes to be welded can accurately be superimposed together up and down, thereby greatly improve overlap joint precision; In addition, by temperature control system, control the heating temp of heating element heater, accurately to control welding temperature, by pore, can realize cooling fast after welding, thereby guarantee welding quality.Further, this superconducting tape welder overall structure is simply compact, facilitate processing and manufacturing, and manufacturing cost is lower, thereby be convenient to it, 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 cutaway view.
Fig. 3 is that the B-B of top board in Fig. 1 is to cutaway 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
The specific embodiment
By particular specific embodiment explanation embodiments of the present invention, person skilled in the art scholar can understand other advantages of the present invention and effect easily by the disclosed content of this description below.
Notice, appended graphic the illustrated structure of this description, ratio, size etc., equal contents in order to coordinate description to disclose only, for person skilled in the art scholar, understand and read, not in order to limit the enforceable qualifications of the present invention, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, not affecting under the effect that the present invention can produce and the object that can reach, all should still drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, in this description, quote as " on ", the term of D score, " left side ", " right side ", " centre " and " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under without essence change technology contents, when being also considered as the enforceable category of the present invention.
The invention provides a kind of superconducting tape welder, for two superconducting tapes 10 are welded together.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, described lower platen 1 comprises lower platen body 11 and the first protuberance 12 projecting upwards from lower platen body 11, described the first protuberance 12 is provided with the first accepting groove 13 of downward-extension, the second protuberance 22 that described top board 2 comprises top board body 21 and gives prominence to downwards from top board body 21, described the second protuberance 22 is provided with the second accepting groove 23 of downward-extension, described the 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 arrange, on described lower platen body 11, offer the gathering sill 14 suitable with the second protuberance 22, between described lower platen body 11, the first protuberance 12, top board body 21 and the second protuberance 22, form a welding region 3, in described top board body 21 and/or in lower platen body 11, be provided with and lay respectively at welding region both sides or heating element heater 8 of a side wherein Shang Xia 3, described heating element heater 8 is connected with a temperature control system, only in top board body 21, is provided with the heating element heater 8 that is positioned at welding region 3 upsides, or only in lower platen body 11, be provided with the heating element heater 8 that is positioned at welding region 3 downsides, or in top board body 21, be provided with the heating element heater 8 and the lower platen body 11 that are arranged in welding region 3 upsides and be provided with the heating element heater 8 that is positioned at welding region 3 downsides, in described top board body 21 He in lower platen body 11, also offer the pore 9 that lays respectively at welding region both sides Shang Xia 3, described pore 9 has a plurality of, and described pore 9 is connected with a cooling device.
In the superconducting tape welder the present invention relates to, described the first accepting groove 13 and the second accepting groove 23 are upper and lower, front and back alignment arranges, and both are arranged side by side left and right, from the side of this welder, the vertical central axis of the vertical central axis of described the first accepting groove 13 and the second accepting groove 23 coincides, in addition, the width d1 of described the first accepting groove 13 equates with the width that is housed in the superconducting tape 10 in the first accepting groove 13, the width d2 of the second accepting groove 23 also equates with the width that is housed in the superconducting tape 10 in the second accepting groove 23, like this superconducting tape 10 is put into after the first accepting groove 13 and the second accepting groove 23, moving up and down in process of top board 2, skew before and after superconducting tape 10 can not occur, to improve welding quality.
When welding, first will on top board 2, move, the lower surface of top board 2 and the upper surface of lower platen 1 are separated, the first accepting groove 13 and the second accepting groove 23 are put into respectively in two superconducting tape 10 ends that operator is welded to connect needs after upper tin, and the end of the superconducting tape of upper tin 10 is placed in welding region 3, as shown in Figure 1, be placed on tin on the right-hand member of the superconducting tape 10 in the first accepting groove 13, and this end is placed in welding region 3; And be placed on tin on the left end of 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, because the first accepting groove 13 and the second accepting groove 23 are positioned at the lower end of the second accepting groove 23 for the superconducting tape 10 in consistency from top to bottom setting and the second accepting groove 23 under original state, therefore top board 2 moves down rear two superconducting tapes to be welded 10 and can accurately be superimposed together up and down, can there is not front-back staggered between the two, to guarantee two bonding areas between superconducting tape 10, thereby greatly improve overlap joint precision.Simultaneously, in the folding process of top board 2, the second protuberance 22 of top board 2 can stretch in the gathering sill 14 on lower platen body 11, this gathering sill 14 is in order to provide one to move down space to the second protuberance 22 on the one hand, by cooperatively interacting of gathering sill 14 and the second protuberance 22, can guarantee the stationarity that top board 2 moves down on the other hand, further improve overlap joint precision.During welding, switch on power, described temperature control system is the electric current to heating element heater 8 for control inputs, thereby controls the heating temp of heating element heater 8, controls welding temperature; Heating element heater 8 heatings, make the tin melted by heat of two superconducting tape 10 ends, thereby complete the welding of two superconducting tapes 10.After welding finishes, open cold radiator cooler, cooling device passes into cooling medium the pad place of two superconducting tapes 10 by pore 9, with butt welding contact, carry out cooling fast, thereby guarantee welding quality; Described cooling medium can be refrigerating gas, can be also cooling liquid.After cooling end, lift top board 2, superconducting tape 10 is taken out.
In the present embodiment, described heating element heater 8 is high-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 by nonmetallic materials, or, at least for fixedly lower platen body 11 and the top board body 21 of heating element heater 8 are made by nonmetallic materials.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 further the overall structure of this welder, make this welder facilitate processing and manufacturing, manufacturing cost lower, thereby be convenient to it, 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, on described the first protuberance 12, be also provided with first of a front and back extension and pick and place passage 15, described the 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 that picks and places passage 15 is the first opening 16; What on described the second protuberance 22, be also provided with that front and back extend second picks and places passage 24, and described the 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 that picks and places passage 24 is the second opening 25; The described first front end that picks and places passage 15 extends to forward the front surface place of the first protuberance 12, and the described second front end that picks and places 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, can by the first opening 16, first, pick and place passage 15 successively superconducting tape 10 is put into the first accepting groove 13; When superconducting tape 10 is put into top board 2, can by the second opening 25, second, pick and place passage 24 successively superconducting tape 10 is put into the second accepting groove 23.In the present embodiment, the upper end of described the first accepting groove 13 extends upwardly to the first rear end that picks and places passage 15, and the lower end of the second accepting groove 23 extends downward the second rear end that picks and places passage 24.Therefore after welding completes, top board 2 is upwards lifted, two superconducting tapes 10 that weld together can be taken out from the first draw-in groove and the second draw-in groove.
Further, see Fig. 1, on described the first protuberance 12, be hinged with a depression bar 6 that is positioned at top board body 21 tops, in this depression bar 6, offer a chute 61 extending along depression bar 6 length directions, the upper end of described top board body 21 is fixed with a connecting rod 7, and these connecting rod 7 upper ends are 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, by pushing down depression bar 6, push down top board 2, thereby the thrust to superconducting tape 10 is provided.
Further, as shown in Figure 1, on the lower surface of described top board body 21 and on the upper surface of lower platen body 11, be equipped with a compressing tablet 4 that is positioned at welding region 3, described compressing tablet 4 is made by material high temperature resistant and not sticky tin, in welding region 3, superconducting tape 10 to be welded contacts with compressing tablet 4, because compressing tablet 4 is made by material high temperature resistant and not sticky tin, therefore after having welded, superconducting tape 10 can not weld together with compressing tablet 4, thereby prevent that 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 ℃.
Further, in order to guarantee the thrust of 4 pairs of superconducting tapes 10 of compressing tablet, 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 ℃, therefore in welding process, by pressing down top board 2, can guarantee the thrust of 4 pairs of superconducting tapes 10 of compressing tablet, two superconducting tapes 10 are pressed together reliably in welding process, to guarantee welding quality.
In sum, the present invention has effectively overcome 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 can, under spirit of the present invention and category, modify or change above-described embodiment.Therefore, such as in affiliated technical field, have and conventionally know that the knowledgeable, not departing from all equivalence modifications that complete under disclosed spirit and technological thought or changing, 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 the first protuberance (12) is provided with first accepting groove (13) of downward-extension, the second protuberance (22) that described top board (2) comprises top board body (21) and gives prominence to downwards from top board body (21), described the second protuberance (22) is provided with second accepting groove (23) of downward-extension, described the 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 arrange, on described lower platen body (11), offer the gathering sill (14) suitable with the second protuberance (22), described lower platen body (11), the first protuberance (12), between top board body (21) and the second protuberance (22), form a welding region (3), in described top board body (21) and/or in lower platen body (11), be provided with and lay respectively at the upper and lower both sides of welding region (3) or the heating element heater of a side (8) wherein, described heating element heater (8) is connected with a temperature control system, in described top board body (21) and in lower platen body (11), also offer the pore (9) that lays respectively at the upper and lower both sides of welding region (3), described pore (9) is connected with a cooling device.
2. superconducting tape welder according to claim 1, it is characterized in that: on described the first protuberance (12), be also provided with first of a front and back extension and pick and place passage (15), described the 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 that picks and places passage (15) is the first opening (16); On described the second protuberance (22), be also provided with second of a front and back extension and pick and place passage (24), described the 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 that picks and places passage (24) is the second opening (25).
3. superconducting tape welder according to claim 1, it is characterized in that: on the lower surface of described top board body (21) and on the upper surface of lower platen body (11), be equipped with a compressing tablet (4) that is positioned at welding region (3), described compressing tablet (4) is made by material 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 ℃.
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, it 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 ℃.
7. superconducting tape welder according to claim 1, it is characterized in that: on described the first protuberance (12), be hinged with a depression bar (6) that is positioned at top board body (21) top, in this depression bar (6), offer a chute (61) extending along depression bar (6) length direction, 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 high-frequency heating element.
9. superconducting tape welder according to claim 1, is characterized in that: described lower platen body (11) is structure as a whole with the first protuberance (12), and top board body (21) is also structure as a whole with the second protuberance (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410401430.4A CN104175030B (en) | 2014-08-14 | 2014-08-14 | Superconducting tape welder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410401430.4A CN104175030B (en) | 2014-08-14 | 2014-08-14 | Superconducting tape welder |
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| CN104175030A true CN104175030A (en) | 2014-12-03 |
| CN104175030B CN104175030B (en) | 2015-10-28 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106654391A (en) * | 2017-01-20 | 2017-05-10 | 宁德时代新能源科技股份有限公司 | Hot press unit for electricity core |
| CN107552912A (en) * | 2017-10-20 | 2018-01-09 | 上海应用技术大学 | High-temperature superconductor band compresses soldering apparatus and welding method certainly with copper tip counterweight |
| 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 |
| CN111146094A (en) * | 2019-12-04 | 2020-05-12 | 中国电子科技集团公司第十三研究所 | Gallium nitride power module packaging method, pressurizing device and pre-curing molding rubber ring |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| CN106654391A (en) * | 2017-01-20 | 2017-05-10 | 宁德时代新能源科技股份有限公司 | Hot press unit for electricity core |
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| 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 |
| CN111146094A (en) * | 2019-12-04 | 2020-05-12 | 中国电子科技集团公司第十三研究所 | Gallium nitride power module packaging method, pressurizing device and pre-curing molding rubber ring |
| 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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| CN104175030B (en) | 2015-10-28 |
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