CN1224245A - Method for mfg. high-temp. superconductor current lead contact - Google Patents
Method for mfg. high-temp. superconductor current lead contact Download PDFInfo
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- CN1224245A CN1224245A CN99100161A CN99100161A CN1224245A CN 1224245 A CN1224245 A CN 1224245A CN 99100161 A CN99100161 A CN 99100161A CN 99100161 A CN99100161 A CN 99100161A CN 1224245 A CN1224245 A CN 1224245A
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- silver
- magnesium
- nickel alloys
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
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Abstract
A method for making the junction of current leading wire for high-temp superconductor features that said junction is made of Ag-Mg-Ni alloy through compress join of Ag-Mg-Ni alloy junction with the both ends of the current leading wire for high-temp superconductor and sintering. Its advantages are tight join, high junction strength, being welded easily, low contact resistance and high current load capacity.
Description
The manufacture method of high-temperature superconductor current lead contact is applicable to high-temperature superconductor making current lead contact.
The high-temperature superconductor current lead contact, the general method of twining filamentary silver and being coated with silver conductive adhesive that adopts because silver conductive adhesive adhesive force is little, bond strength is low, in this way the high-temperature superconductor current lead contact of Zhi Zuoing come off easily, aliquation, cause and can't use.Also have methods such as adopting magnetron sputtering and plasma spraying to make the high-temperature superconductor current lead contact, but the technical equipment complexity costs an arm and a leg, make to use to be subjected to condition restriction.
The contact that exists in the present invention seeks to make at above-mentioned high-temperature superconductor current lead contact comes off easily, aliquation, the same topic that can't use, a kind of good welding performance is proposed, contact bond strength height, contact resistance is little, the manufacture method of high-temperature superconductor current lead contact that can be by big electric current.
A kind of manufacture method of Bi system high-temperature superconducting body current lead contact is characterized in that:
A, silver-magnesium-nickel alloys is processed into annulus tubulose contact, the internal diameter of its silver-magnesium-nickel alloys pipe contact matches with the Bi system high-temperature superconducting body current feed external diameter of press forming, and the silver-magnesium-nickel alloys composition is by weight percentage: silver 99.50%, magnesium 0.24%, nickel 0.18%;
B, the silver-magnesium-nickel alloys pipe contact of being processed into is assemblied on the two ends of Bi system high-temperature superconducting body current feed of press forming;
C, will pack in the latex die sleeve with the Bi system high-temperature superconducting body current feed that silver-magnesium-nickel alloys pipe contact assembles, the rubber stopper shutoff of latex die sleeve two ends, static pressure methods such as employing combine silver-magnesium-nickel alloys pipe contact with the compacting of Bi system high-temperature superconducting body current feed, its operating pressure is 200Mpa-240Mpa;
D, with the silver-magnesium-nickel alloys pipe contact after the demoulding and Bi system high-temperature superconducting body current feed pressed ware under 800 ℃ of-840 ℃ of temperature, through sintering heat treatment in-40 hours in 10 hours, form the silver-magnesium-nickel alloys contact at Bi system high-temperature superconducting body current feed two ends.
Owing to adopt technique scheme, the present invention has good welding performance, easy and other material welds, the contact combination firmly, intensity is high, contact resistance is little, contact circulates repeatedly to room temperature repeatedly at liquid nitrogen, obscission does not appear in its contact, does not find the loose contact situation through tens retests, is a kind of high-temperature superconductor current lead contact manufacture method of practicality.
Fig. 1 is the annulus tubulose contact sectional drawing of being processed into silver-magnesium-nickel alloys.
Fig. 2 is the sectional drawing of silver-magnesium-nickel alloys pipe contact and the assembling of bar-shaped high-temperature superconductor current feed.
Fig. 3 is through waiting static pressure and heat treatment back contact sectional drawing.
Below by embodiment the present invention is further described.
Embodiment 1:
Being processed into wall thickness with silver-magnesium-nickel alloys is 0.15mm, and internal diameter is φ 11mm, and length is the annulus tubulose contact 1 of 20mm; The silver-magnesium-nickel alloys pipe contact of being processed into is assemblied on long bar-shaped Bi system high-temperature superconducting body current feed 2 two ends of φ 10mm * 240mm; To pack in the latex die sleeve with the bar-shaped Bi system high-temperature superconducting body current feed that silver-magnesium-nickel alloys pipe contact assembles again, the rubber stopper shutoff of latex die sleeve two ends, with waiting static pressure method that silver-magnesium-nickel alloys pipe contact is combined with bar-shaped Bi system high-temperature superconducting body current feed compacting, its operating pressure is 200Mpa; Stampings after the demoulding under 800 ℃ of temperature, through sintering heat treatment in 40 hours, are measured high-temperature superconductor current feed two ends contact resistance, Rab=0.0147 μ Ω, Rcd=0.063 μ Ω.
Embodiment 2:
Being processed into wall thickness with silver-magnesium-nickel alloys is 0.15mm, and internal diameter is φ 15mm, and length is the annulus tubulose contact 1 of 20mm; The silver-magnesium-nickel alloys pipe contact of being processed into is assemblied on tubulose Bi system high-temperature superconducting body current feed 2 two ends of φ 14mm * 2.5mm * 260mm; To pack in the latex die sleeve with the tubulose Bi system high-temperature superconducting body current feed that silver-magnesium-nickel alloys pipe contact assembles again, the rubber stopper shutoff of latex die sleeve two ends, with waiting static pressure method that silver-magnesium-nickel alloys pipe contact is combined with the compacting of tubulose Bi system high-temperature superconducting body current feed, its operating pressure is 230Mpa; Stampings after the demoulding under 830 ℃ of temperature, through sintering heat treatment in 20 hours, are measured high-temperature superconductor current feed two ends contact resistance, Rab=0.083 μ Ω, Rcd=0.062 μ Ω.
The silver-magnesium-nickel alloys composition that embodiment 1 and embodiment 2 are used is: silver 99.5%, magnesium 0.24%, nickel 0.18% by weight percentage.
Claims (1)
- A kind of manufacture method of Bi system high-temperature superconducting body current lead contact is characterized in that:A, silver-magnesium-nickel alloys is processed into annulus tubulose contact, the internal diameter of its silver-magnesium-nickel alloys pipe contact matches with the Bi system high-temperature superconducting body current feed external diameter of press forming, and the silver-magnesium-nickel alloys composition is by weight percentage: silver 99.50%, magnesium 0.24%, nickel 0.18%;B, the silver-magnesium-nickel alloys pipe contact of being processed into is assemblied on the Bi system high-temperature superconducting body current feed two ends of press forming;C, will pack in the latex die sleeve with the Bi system high-temperature superconducting body current feed that silver-magnesium-nickel alloys pipe contact assembles, the rubber stopper shutoff of latex die sleeve two ends, static pressure methods such as employing combine silver-magnesium-nickel alloys pipe contact with the compacting of Bi system high-temperature superconducting body current feed, its operating pressure is 200Mpa-240Mpa;D, with the silver-magnesium-nickel alloys pipe contact after the demoulding and Bi system high-temperature superconducting body current feed pressed ware under 800 ℃ of-840 ℃ of temperature, through sintering heat treatment in-40 hours in 10 hours, form the silver-magnesium-nickel alloys contact at Bi system high-temperature superconducting body current feed two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99100161A CN1087873C (en) | 1999-01-13 | 1999-01-13 | Method for mfg. high-temp. superconductor current lead contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99100161A CN1087873C (en) | 1999-01-13 | 1999-01-13 | Method for mfg. high-temp. superconductor current lead contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1224245A true CN1224245A (en) | 1999-07-28 |
| CN1087873C CN1087873C (en) | 2002-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99100161A Expired - Fee Related CN1087873C (en) | 1999-01-13 | 1999-01-13 | Method for mfg. high-temp. superconductor current lead contact |
Country Status (1)
| Country | Link |
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| CN (1) | CN1087873C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914697A (en) * | 2010-07-29 | 2010-12-15 | 贵研铂业股份有限公司 | Method for preparing silver-magnesium-nickel alloy billets |
| CN103567711A (en) * | 2012-07-26 | 2014-02-12 | 北京有色金属与稀土应用研究所 | Silver-magnesium-nickel friction ring manufacturing method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101447325B (en) * | 2007-11-27 | 2011-05-11 | 电子科技大学 | High-temperature superconductor high-voltage transformer for serving as low current high-voltage power and application thereof |
| CN101458989B (en) * | 2007-12-14 | 2011-07-20 | 电子科技大学 | High temperature superconductive large current transformer and application thereof |
-
1999
- 1999-01-13 CN CN99100161A patent/CN1087873C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914697A (en) * | 2010-07-29 | 2010-12-15 | 贵研铂业股份有限公司 | Method for preparing silver-magnesium-nickel alloy billets |
| CN101914697B (en) * | 2010-07-29 | 2011-11-16 | 贵研铂业股份有限公司 | Method for preparing silver-magnesium-nickel alloy billets |
| CN103567711A (en) * | 2012-07-26 | 2014-02-12 | 北京有色金属与稀土应用研究所 | Silver-magnesium-nickel friction ring manufacturing method |
| CN103567711B (en) * | 2012-07-26 | 2015-09-30 | 北京有色金属与稀土应用研究所 | A kind of preparation method of silver-magnesium-nickel alloys drag ring |
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| Publication number | Publication date |
|---|---|
| CN1087873C (en) | 2002-07-17 |
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Granted publication date: 20020717 Termination date: 20100222 |