CN101950610B - Super-thin oxidation resisting copper braided wire and manufacturing method thereof - Google Patents
Super-thin oxidation resisting copper braided wire and manufacturing method thereof Download PDFInfo
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- CN101950610B CN101950610B CN201010286296XA CN201010286296A CN101950610B CN 101950610 B CN101950610 B CN 101950610B CN 201010286296X A CN201010286296X A CN 201010286296XA CN 201010286296 A CN201010286296 A CN 201010286296A CN 101950610 B CN101950610 B CN 101950610B
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Abstract
The invention discloses a super-thin oxidation resisting copper braided wire which is knitted by a purple copper wire with a diameter of 0.04-0.07mm; and the cross section of the super-thin oxidation resisting copper braided wire is rectangle. The invention also discloses a method for manufacturing the super-thin oxidation resisting copper braided wire. After annealed at a high temperature, the super-thin oxidation resisting copper braided wire is soft, bright, oxidation resisting, and not easy to turn black; the copper braided wire produced by using the method for manufacturing the super-thin oxidation resisting copper braided wire has good quality; and the manufacturing process is energy-saving and environment-friendly.
Description
Technical field
The present invention relates to a kind of copper litz wire, specifically is a kind of softness, light, oxidation resistant ultra-fine anti-oxidant copper litz wire of annealed processing, and the manufacturing approach of this ultra-fine anti-oxidant copper litz wire also is provided simultaneously.
Background technology
At present, the structurally most of single-break structure that adopts of lv air breaker from arranging compact conformation, satisfies the requirement of miniaturization easily, and its moving contact often connects in outlet row through being flexible coupling; On the market, commonly used being flexible coupling is to adopt multilayer sheet copper superposition to constitute, though easy to process; It is soft when moving contact moves that but employing copper sheet superposition forms; Bending causes the compression of internal layer sheet copper owing to be flexible coupling, and outer sheet copper stretches, and connects soft inadequately; When motion, bring resistance for moving contact, thereby influenced the performance of lv air breaker greatly.
Summary of the invention
Goal of the invention:, the invention provides a kind of surperficial submissive, copper litz wire that oxidation resistance is strong that adopts that the braiding of ultra-fine copper wire forms in order to solve the deficiency of prior art; The present invention simultaneously also provides the manufacturing approach of this ultra-fine anti-oxidant copper litz wire.
Technical scheme: in order to realize above purpose, a kind of ultra-fine anti-oxidant copper litz wire of the present invention, it twines the cylinder that braiding forms by multiply copper wire soft whipping wire, and the cross section of this cylinder is a rectangle.Said soft whipping wire is made up of the copper wire winding of one group of 0.04mm-0.07mm, preferably adopts 200 copper wires to be one group and constitutes soft whipping wire.Because it is strong that cross section according to the invention is the ultra-fine anti-oxidant copper litz wire flexibility as plait of rectangle, as being flexible coupling of low-pressure air short-circuiting device the time, produce resistance hardly, having guaranteed simultaneously is flexible coupling has enough conductivity.
The invention also discloses a kind of manufacturing approach of ultra-fine anti-oxidant copper litz wire, the concrete steps of this manufacturing approach are:
(1) selects pure red copper for use;
(2) red copper is pulled into free from foreign meter, the oxygen-free copper bar of the 6mm of hole or oxide;
(3) with oxygen-free copper bar pull into diameter ∮ 2.6mm in move back silk;
(4) pull into the thick copper wire that diameter is 1.0mm with moving back silk in the diameter ∮ 2.6mm through the first road wire drawing machine; Be that the thick copper wire of 1.0mm pulls into the medium copper wire that diameter is 0.2mm through the second road wire drawing machine with diameter then; Pull into the thin copper wire that diameter is 0.07mm or 0.05mm through the 3rd road wire drawing machine again;
(5) copper wire is become soft whipping wire through the coil winding machine bundle;
(6) annealing decontamination;
(7) annealing anneal;
(8) soft whipping wire is woven into ultra-fine anti-oxidant copper litz wire.
Among the present invention, the copper wire of making diameter and be 0.07mm only needs to carry out wire drawing through three road wire drawing machinees and gets final product, and is of above-mentioned step (4); The copper wire of making diameter and be 0.04mm need carry out wire drawing through four road wire drawing machinees, and the order of wire drawing is: with diameter be 2.6mm in move back silk and pull into the thick copper wire that diameter is 1.0mm through first a road wire drawing machine; Be that the thick copper wire of 1.0mm pulls into the medium copper wire that diameter is 0.2mm through the second road wire drawing machine with diameter then; Pull into the thin copper wire that diameter is 0.05mm through the 3rd road wire drawing machine again; Preferably pull into the ultra-fine copper wire that diameter is 0.04mm through the 4th road wire drawing machine.
Among the present invention, do not produce fracture of wire when making the coil winding machine bunch, in the step (5) during bunch on the coil winding machine rotating speed of take-up reel be 1000-2000 rice/minute; Copper wire is installed on the unwrapping wire spindle; When doing winding operation, the speed of unwrapping wire is the same with the rate request of coiling, and promptly the speed of unwrapping wire spindle unwrapping wire is consistent with the take-up speed of take-up reel; Tension force when copper wire is twined is well controlled, thus copper wire little breakage when guaranteeing coiling.
Among the present invention, the concrete grammar of annealing decontamination is in the above-mentioned steps (6): the copper stranded conductor that will restraint is put into annealing furnace, takes out the air in the annealing furnace, makes annealing furnace become vacuum state, pours CO then
2, making the pressure in the annealing furnace is 0.5mpa-0.7mpa; To the annealing furnace heating, be heated to 220-240 ℃; Warm-up time is 1.5h-2.5h, then to annealing furnace venting decompression, makes that pressure is 0.45MPa-0.7MPa in the annealing furnace; Take the dirt in the annealing furnace out of effect that annealing furnace has been realized decontamination with gas in the time of annealing furnace venting decompression.
In the step (7), pressure is 0.45MPa-0.7MPa in the annealing furnace; Temperature is: 260 ℃-270 ℃; Be 2h-2.5h heating time.
In the step (8), with the soft whipping wire of the annealed processing of multiply around last rectangular weave machine, the ultra-fine anti-oxidant copper litz wire that soft whipping wire is woven into; After braiding was accomplished, the cross section of ultra-fine anti-oxidant copper litz wire was a rectangle.
Beneficial effect: a kind of ultra-fine anti-oxidant copper litz wire provided by the invention, compared with prior art, advantage of the present invention is:
1, owing to adopted CO
2As in separate gas; Because CO
2Has very strong diffusion effect, the inside and outside CO that all obtained of braiding copper cash in annealing in process
2The protection of gas has improved the oxidation resistance of copper stranded conductor, is difficult for blackout; And, make soft, the light, anti-oxidant of ultra-fine anti-oxidant copper litz wire of the present invention because the present invention adopts the soft whipping wire braiding after the annealing in process to form.
2, because annealing decontamination and annealing anneal have adopted venting to handle between two stages; The annealing furnace gas is a large amount of to be taken greasy dirt and other booties of copper line surface out of against going out in the lump, and the copper stranded conductor surface is shinny after the annealing decontamination, and fineness is good;
3, the rotating speed through the spindle of control on the coil winding machine and put on the active force on the copper wire has effectively reduced the generation of breaking end in the copper wire, has improved the total quality of copper litz wire;
4, because the copper litz wire cross section is a rectangle, compare with the copper litz wire of circular cross section, with respect to same ampacity, the space availability ratio of the copper litz wire of rectangular cross section is high.
5, because whole process of production does not have the melting operation, so the manufacturing approach energy-conserving and environment-protective of ultra-fine anti-oxidant copper litz wire according to the invention.
Description of drawings
Fig. 1 is the structural representation of ultra-fine anti-oxidant copper litz wire of the present invention;
Fig. 2 is applied to the structural representation of air switch for ultra-fine anti-oxidant copper litz wire of the present invention.
Embodiment:
Below in conjunction with specific embodiment; Further illustrate the present invention; Should understand these embodiment only be used to the present invention is described and be not used in the restriction scope of the present invention; After having read the present invention, those skilled in the art all fall within the application's accompanying claims to the modification of the various equivalent form of values of the present invention and limit.
The described a kind of ultra-fine anti-oxidant copper litz wire 2 of present embodiment (as shown in Figure 1); It is formed by some stereotyped writing soft whipping wire braidings; The per share braiding by ten little copper wire soft whipping wires forms; Every little copper wire soft whipping wire is made up of the copper wire of 200 0.04mm, and the cross section of this ultra-fine anti-oxidant copper litz wire is a rectangle.This ultra-fine anti-oxidant copper litz wire 2 applies in the lv air breaker (as shown in Figure 2) as being flexible coupling, and connects moving contact 1 and outlet row 3.
The manufacturing approach of above-mentioned ultra-fine anti-oxidant copper litz wire, concrete steps are:
(1) selects pure red copper for use;
(2) red copper is pulled into free from foreign meter, the oxygen-free copper bar of the 6mm of hole or oxide;
(3) with oxygen-free copper bar pull into diameter be 2.6mm in move back silk;
(4) with diameter be 2.6mm in move back silk and pull into the thick copper wire that diameter is 1.0mm through first a road wire drawing machine; Be that the thick copper wire of 1.0mm pulls into the medium copper wire that diameter is 0.2mm through the second road wire drawing machine with diameter then; Pull into the thin copper wire that diameter is 0.05mm through the 3rd road wire drawing machine again; Preferably pull into the ultra-fine copper wire that diameter is 0.04mm through the 4th road wire drawing machine;
(5) copper wire is become soft whipping wire through the coil winding machine bundle; During bunch on the coil winding machine rotating speed of take-up reel be 1200 meters/minute; Copper wire is installed on the unwrapping wire spindle, and when doing winding operation, the speed of unwrapping wire is the same with the rate request of coiling;
(6) copper stranded conductor that will restraint is put into the annealing furnace decontamination of annealing, and takes out the air in the annealing furnace earlier, makes annealing furnace become vacuum state, pours CO then
2, making the pressure in the annealing furnace is 0.6mpa; To the annealing furnace heating, be heated to 225 ℃; Be 2h heating time, then to annealing furnace venting decompression, makes that pressure is 0.6MPa in the annealing furnace;
(7) annealing anneal: pressure in the annealing furnace is reduced to 0.5MPaMPa; Temperature is: 270 ℃; Heat 2h then;
(8) soft whipping wire of annealed processing is put braiding machine and be woven into the ultra-fine anti-oxidant copper litz wire that cross section is a rectangle.
Claims (7)
1. the manufacturing approach of a ultra-fine anti-oxidant copper litz wire is characterized in that: said ultra-fine anti-oxidant copper litz wire twines the cylinder that braiding forms by multiply copper wire soft whipping wire, and the cross section of this cylinder is a rectangle;
The concrete steps of the manufacturing approach of said ultra-fine anti-oxidant copper litz wire are:
(1) selects pure red copper for use;
(2) red copper is pulled into free from foreign meter, the oxygen-free copper bar of the 6mm of hole or oxide;
(3) with oxygen-free copper bar pull into diameter ∮ 2.6mm in move back silk;
(4) pull into the thick copper wire that diameter is 1.0mm with moving back silk in the diameter ∮ 2.6mm through the first road wire drawing machine; Be that the thick copper wire of 1.0mm pulls into the medium copper wire that diameter is 0.2mm through the second road wire drawing machine with diameter then; Pull into the thin copper wire that diameter is 0.07mm or 0.05mm through the 3rd road wire drawing machine again;
(5) copper wire is become soft whipping wire through the coil winding machine bundle;
(6) annealing decontamination;
(7) annealing anneal;
(8) twisted wire is woven into ultra-fine anti-oxidant copper litz wire.
2. the manufacturing approach of a kind of ultra-fine anti-oxidant copper litz wire according to claim 1 is characterized in that: said soft whipping wire is twined by the copper wire of one group of 0.04mm-0.07mm and constitutes.
3. the manufacturing approach of a kind of ultra-fine anti-oxidant copper litz wire according to claim 1 is characterized in that: in the step (4), can be again be that to pull into diameter be the 0.04mm copper wire for the copper wire of 0.05mm through the 4th road wire drawing machine with diameter.
4. the manufacturing approach of a kind of ultra-fine anti-oxidant copper litz wire according to claim 1 is characterized in that: in the step (5) during bunch on the coil winding machine rotating speed of take-up reel be 1000-2000 rice/minute; Copper wire is installed on the unwrapping wire spindle, and when doing winding operation, the speed of unwrapping wire is the same with the rate request of coiling.
5. the manufacturing approach of a kind of ultra-fine anti-oxidant copper litz wire according to claim 1; It is characterized in that: the concrete grammar of step (6) annealing decontamination is: the copper stranded conductor that will restraint is put into annealing furnace; Take out the air in the annealing furnace, make annealing furnace become vacuum state, pour CO then
2, making the pressure in the annealing furnace is 0.5mpa-0.7mpa; To the annealing furnace heating, be heated to 220-240 ℃; Warm-up time is 1.5h-2.5h, then to annealing furnace venting decompression, makes that pressure is 0.45MPa-0.7MPa in the annealing furnace.
6. the manufacturing approach of a kind of ultra-fine anti-oxidant copper litz wire according to claim 1 is characterized in that: in the step (7), the annealing anneal is: pressure in the annealing furnace is reduced to 0.45MPa-0.7MPa; Temperature: 260 ℃-270 ℃; Heating time 2h-2.5h.
7. the manufacturing approach of a kind of ultra-fine anti-oxidant copper litz wire according to claim 1, it is characterized in that: in the step (8), the ultra-fine anti-oxidant copper litz wire cross section that is woven into is a rectangle.
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| CN201010286296XA CN101950610B (en) | 2010-09-16 | 2010-09-16 | Super-thin oxidation resisting copper braided wire and manufacturing method thereof |
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| CN201010286296XA CN101950610B (en) | 2010-09-16 | 2010-09-16 | Super-thin oxidation resisting copper braided wire and manufacturing method thereof |
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| CN101950610B true CN101950610B (en) | 2012-08-08 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427270A (en) * | 2012-05-16 | 2013-12-04 | 海门市华联电碳有限公司 | Carbon brush for electric grinder |
| CN102856675A (en) * | 2012-09-10 | 2013-01-02 | 江苏镇安电力设备有限公司 | Flexible connecting conductor |
| CN103978053A (en) * | 2014-05-07 | 2014-08-13 | 福建三美金属有限公司 | Production process for drawn copper rod wire |
| CN107482415A (en) * | 2017-04-28 | 2017-12-15 | 浙江金桥铜业科技有限公司 | The production technology and equipments that a kind of copper cash is flexible coupling |
| CN107622831B (en) * | 2017-07-24 | 2019-05-21 | 广州光为照明科技有限公司 | A kind of production technology of copper litz wire |
| CN108122647A (en) * | 2017-12-18 | 2018-06-05 | 苏州人为峰软件科技有限公司 | A kind of super-thin oxidation resisting copper braided wire and its manufacturing method |
| CN108356488A (en) * | 2018-02-27 | 2018-08-03 | 铜陵集思意特种编织线有限公司 | One kind is flexible coupling processing technology |
| CN108399976A (en) * | 2018-02-27 | 2018-08-14 | 铜陵集思意特种编织线有限公司 | A kind of copper litz wire production method |
| CN111028988A (en) * | 2019-11-18 | 2020-04-17 | 太仓市林源电线电缆有限公司 | Electrical copper wire with ultra-strong tensile force and processing technology thereof |
| CN111028984A (en) * | 2019-11-18 | 2020-04-17 | 太仓市林源电线电缆有限公司 | High-performance electrical copper wire and production process thereof |
| CN115896658A (en) * | 2022-11-28 | 2023-04-04 | 太仓市林源电线电缆有限公司 | Surface oxidation resistance treatment method for soft copper braided wire |
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Denomination of invention: Super-thin oxidation resisting copper braided wire and manufacturing method thereof Effective date of registration: 20151230 Granted publication date: 20120808 Pledgee: Bank of Jiangsu Limited by Share Ltd Taicang branch Pledgor: Taicang Linyuan Electric Wire & Cable Co., Ltd. Registration number: 2015320010015 |
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