CN1664961A - Copper wire and method and device for manufacturing copper wire - Google Patents
Copper wire and method and device for manufacturing copper wire Download PDFInfo
- Publication number
- CN1664961A CN1664961A CN200510051811.5A CN200510051811A CN1664961A CN 1664961 A CN1664961 A CN 1664961A CN 200510051811 A CN200510051811 A CN 200510051811A CN 1664961 A CN1664961 A CN 1664961A
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- China
- Prior art keywords
- copper
- alloying element
- content
- copper cash
- weight
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/108—Feeding additives, powders, or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D39/00—Equipment for supplying molten metal in rations
- B22D39/04—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by weight
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
Abstract
A copper wire has an average copper content of at least 99.95 wt.% and at least one accompanying element alloyed with the copper. The ratio of the percentage by weight of the accompanying element and the percentage by weight of the residual oxygen concentration has a value in the range of 0.8 to 1.7. The percentage by weight of the accompanying element varies along a length of wire by a maximum of 25%, based on the maximum percentage by weight of the accompanying element. The copper wire is produced by a process that includes a casting operation followed by further processing. The copper melt is protected from the surrounding atmosphere until it has solidified. To guarantee exact alloying of the accompanying element, the equipment for the production of the copper wire has an automatic metering control system connected to a metering device.
Description
Technical field
The present invention relates to a kind of copper cash, its average copper content is at least 99.95 weight % and has alloying element at least a and copper formation alloy.
The invention still further relates to a kind of method that average copper content is at least the copper cash of 99.95 weight % for preparing in addition, in the method copper and at least a alloying element are melt into alloy and also in the method preparation process comprise casting cycle and follow-up rolling and/or drawing process when needing.
The invention still further relates to the device that is used to prepare copper cash at last, it has at least one stove and a pouring device of being used to prepare copper melt.Be used for device rolling and/or that stretch and can be rearmounted with also can be connected.
Background technology
Typical copper cash preparation process is: molten copper at first, copper melt is imported in the direct casting device then, and solidify the slivering base therein.Then with the distortion of this copper bar base, as adopt rolling, compacting, drawing process, have the copper cash of can predefined diameter or having the profile that can preestablish cross-sectional geometry thereby make.Also can heat-treat then, to regulate the combination of determining of intensity and deformability.In last procedure of processing, copper cash or the section bar that makes typically is wrapped on the bobbin, holds in the palm in year device in the drum or similarly.Copper cash that makes like this or section bar mainly are used in the electrical applications field.
Except the special circumstances of preparation resistive conductor, wire rod or section bar there is typical requirement reaching on the high as far as possible conductivity.Prerequisite herein is at first to prepare the high purity copper liquation of having removed alloying element as far as possible.
The method that reduces alloying element weight content in the copper melt is to pre-determine oxygen content suitable in the copper melt, and remove contained alloying element when needed pointedly thus.The alloying element oxide of Xing Chenging partly swims in above the copper melt as slag and can remove thus thus.The remainder of oxide is assembled at the crystal boundary place and conductivity is not had obstruction, thereby makes the no longer solid solution in the copper matrix of alloying element of combination in the oxide.
Yet the product by high-purity copper melt makes as wire rod or section bar, has following shortcoming: the raising of material purity and the bigger crystal that forms thus, feasible intensity that can reach and the combination between the deformation performance and fatigue strength performance are more unfavorable.For example, this copper cash or section bar that will cause making has higher risk of breakage.
In addition, wire rod/the section bar that is made by high purity copper has lower recrystallization temperature after cold deformation, although this is desired in some applications, yet obstruction is but arranged in many application, and this is because can not satisfy under processing or the condition of work the thermal stability requirement of (promptly still keeping mechanical performance when temperature raises).
Incoherent therewith be under certain conditions oxygen content 〉=5ppm (=g/t) time, copper cash/section bar has also descended to the durability that infiltrates through hydrogen, thereby this is because hydrogen can be oxidized to water vapour and damage crystal boundary by oxygen.Therefore, traditional oxygen-bearing copper line has so-called hydrogen brittleness tendency, and this will damage wire rod.
Summary of the invention
The objective of the invention is to prepare the copper cash of mentioned kind, make it reach the best of breed of above-mentioned material performance.Particularly can make the material of anti-hydrogen line the with high conductivity, its uniform tissue structure by its little crystallite dimension after essential procedure of processing provides favourable mechanical performance combination.In addition thermal stability is adjusted to desired value.
According to the present invention, this purpose should so solve: the ratio of the weight content of alloying element and the oxygen weight content regulated in little error range is between 0.8 to 1.7 in the matrix of high purity copper liquation, and the maximum weight content that the maximum of the weight content of alloying element material length along the line changes the gold element that is involutory is 25%.
Another object of the present invention is to improve said method, makes the copper cash of preparation have the optimal material performance.
According to the present invention, this purpose should so solve: copper melt and ambiance are completely cut off solidify until it, and with the weight content of the alloying element that adds and in copper melt the ratio of the weight content of desired oxygen content be adjusted between 0.8 to 1.7, and this ratio material length along the line keeps substantially constant.
Attached purpose of the present invention is the device of design mentioned kind, even make its copper cash for preparing when large-scale production also have substantially invariable optimal material performance.
According to the present invention, this purpose should so solve: the metering device that is used to add at least a alloying element links to each other with the dosing controller, and is used to measure the device that the heavy transducer of stove and is used to measure casting efficient with at least one and is connected.
By according to the weight content of alloying element of the present invention and the relation of residual oxygen, not only can make copper cash obtain high conductivity, and can obtain the favorable mechanical performance, as the combination and the anti-hydrogen of intensity, extensibility, fatigue strength.According to alloying element weight content of the present invention, not only can when copper melt solidifies, improve conductivity, and can when little average grain size, realize best crystal boundary mechanical performance.
In order to reach anti-hydrogen and on the one hand high mechanical properties and the good combination of high deformation performance and trading off of the best between the good electrical conductivity on the other hand, proved that it is favourable that alloying element is made of phosphorus.
Another kind of favourable selection is that alloying element is made of boron.
Alloying element also can be made of lithium.
Especially, when the content of alloying element is 5ppm to 60ppm in the copper, can realize the optimization of material of expecting.
So, when average grain size is 30 microns to the maximum, for example under mecystasis, can realize intensity and high as far as possible deformation performance and the good combination between the best electrical conductivity.
The alloying element that typical implementation is combination in product is assembled at each crystal boundary place at least in part.
In addition, alloying element also can be at least in part be packed in the atomic lattice of each crystal grain with the form of element.
In the large-scale commercial Application, the be involutory maximum weight content of gold element of the tall and big variation of the weight content of alloying element material length along the line is 20%, and this has proved favourable.
Be the content of measuring alloying element in the copper with at least one test probe technically, be of value to the measurement of the amount of contained alloying element in the copper thus technically.
The content of alloying element simple technical be to record by the test probe in the molten copper zone.
The content of alloying element is to be recorded by the test probe in the zone of the wire rod that solidifies technically in the final products.
Typical technological process is for regulating the conductivity of copper by the content of the alloying element in the copper.
In order to compensate, under the situation that oxygen content improves, join in the copper according to the alloying element of corresponding calculated with higher weight content owing to containing at least a portion sclerosis that aerobic makes the alloying element of adding in the copper melt.
Another kind of production decision is to make copper cash by direct pouring.
In addition, the bar base that makes of casting is made copper cash by follow-up thermal deformation.
Can also make copper cash by cold deformation except that carrying out heat treated production decision after the distortion.
Add the exemplary position of alloying element in the copper in guide groove.
Alloying element also can join in the copper in the pond of bottom.
Alloying element also can join in the copper in casting die.
Alloying element also can join in the copper in the pond on top.
In another embodiment, also alloying element can be joined in the copper in holding furnace.
The final alloy element also can join in the copper in the zone of liquation jet (Schmelzestrahl).
Alloying element joins in the copper with the form of pure material basically, can make the conveying capacity in the charging gear smaller.
Alloying element is joined in the copper with the form of prealloy basically, accurately feed and alloying element is distributed fast.
Be sent in the feed controller by the oxygen content of measurement copper melt and with measurement result, can realize the relatively control of another kind of quality of materials.
Weight content by measuring alloying element in the copper technically also uses feed controller and charging gear to make that the weight content material length along the line of alloying element keeps substantially constant in the copper in the Control Circulation of sealing, thereby even also can make the quality of materials uniformity when changing input parameter.
Great majority general action of contained alloying element in copper melt is, during by selected alloying element feed the feed of all alloying element total contents in the copper is controlled to determine feeding coal.
Described stove is arranged on amount/length of also measuring the casting wire rod on the weighing device, thereby measures casting efficient.
According to typical embodiment, described stove is made of smelting furnace.
According to another embodiment, described stove also can be made of casting furnace.
The feed controller that has transducer is connected with copper melt, thereby can measure the oxygen content in the copper melt.
Description of drawings
Schematically illustrated in the accompanying drawings embodiments of the invention, among the figure:
Fig. 1 is the conductivity of copper cash and the graph of a relation of different-alloy element wt content (annotate: this is known and wins) from publication,
Fig. 2 is the conductivity of copper cash and the graph of a relation of iron content,
Fig. 3 is the conductivity of copper cash when two kinds of different oxygens and the graph of a relation of phosphorus content,
Fig. 4 is the phosphorus content when the higher phosphorus content that obtained by Fig. 3 and the graph of a relation of special conductivity,
Fig. 5 is four recrystallization curve charts of the relation of different alloying element and content and recrystallization initial temperature.
Fig. 6 is the exemplary copper cash grainiess figure of the anti-hydrogen detection of the copper cash according to the present invention.
When Fig. 7 contains the oxygen material for using for prior art, according to the copper cash grainiess figure with imperfect crystal boundary of anti-hydrogen detection.
Fig. 8 is the device schematic diagram of preparation copper cash.
Embodiment
Figure 1 shows that the corresponding addition of alloying element and the relation of copper conductivity.As can be seen, with the raising of alloying element content, conductivity all obviously descends.Wherein the degree of Xia Jianging is relevant with each alloying element.What alloying element caused conductivity decline degree maximum in an embodiment is phosphorus, and conductivity decline degree minimum is cadmium.
Figure 2 shows that the conductivity of making copper cash by the copper recrystallization phosphorus content during less than 1ppm with the relation of different iron content.In common excursion, conductivity and iron content almost are linear relationship in the diagram scope.
Figure 3 shows that respectively when oxygen content is during less than 5ppm and in the 30-40ppm scope, make the conductivity of copper cash and the relation of phosphorus content by the copper recrystallization.Wherein also be linear relationship basically in the diagram scope.
Figure 4 shows that the ratio conductivity of copper cash and the relation of phosphorus content, be evident as functional relation.Figure 5 shows that the change of cold deformation copper cash tensile strength when using the consumption of different alloying elements or different-alloy element and the graph of a relation of the annealing in process temperature of carrying out in advance, i.e. recrystallization curve.For relatively, also show the curve of oxygen-free fine copper.Can know that thus with the particularly raising of phosphorus content of alloying element, recrystallization temperature obviously improves.
Use according to embodiment and to have phosphorus that high purity copper and additional proportion greater than 99.95 weight % be 5ppm-60ppm as alloying element.This phosphorus content only causes the reduction of the smaller amplitude of conductivity in the corresponding schematic diagram of Fig. 3, yet has caused significantly improving of tensile strength according to Fig. 5 after certain cold deformation and heat treatment.Use phosphorus, boron or lithium to prove favourable in addition as alloying element.An alloying element part that adds in the copper accumulates in the crystal boundary place of each crystallization crystal grain of copper with the form with element of oxide or part, and the remainder of alloying element also is packed in the lattice self of crystallization.Alloying element not only in lattice but also the filling at the crystal boundary place cause particularly advantageous further processing characteristics.
Form the Cu-P-O-nucleus by adding alloying element in copper melt, this will form stable crystal boundary and even and tiny crystal grain when solidifying.In the above embodiments after thermal deformation or to carry out average grain size that cold deformation carries out obtaining in the heat treatment of recrystallization subsequently earlier be in 30 microns of diameters or the littler scope.
Figure 6 shows that the typical grainiess of the corresponding copper cash of embodiment, this copper cash is to obtain after 30 minutes in heat treatment under 850 ℃ the treatment temperature in the reducing atmosphere of 100% hydrogen.Figure 7 shows that the tradition after same procedure is handled contains the oxygen material.Grainiess shown in Figure 6 is obviously less, and the size of crystal boundary expansion is spatially less.
Figure 8 shows that the structure of preparation copper cash device.The copper melt of making in stove (1) (2) joins in the pouring device (3).The thick section bar (4) that makes from pouring device (3) is deformed into copper cash (6) further processing unit (plant) (5) subsequently.Stove (1) is positioned on the have transducer weighing device (8) of (7).Weighing device (8) is connected with feed controller (9), and the latter is used to control the charging gear (10) of alloying element.Feed controller (9) is connected with the device (11) that is used to measure casting efficient extraly.
The interpolation of alloying element for example can be carried out in the molten metal guide groove between smelting furnace and the holding furnace.In the pond that is added on the bottom of alloying element or equally also be feasible in casting die.In addition in the pond that is added on top of alloying element or also be feasible in holding furnace self.Equally also can use the copper in smelting furnace with selected alloying element content.For example the copper with alloying element content can be added as broken furnace charge with the form of mixing.Another embodiment variant is for directly in mold in the fluid column of the liquation above the groove or add alloying element in casting gate self.
Alloying element can the pure material form or is added by charging gear (10) with the form of prealloy.For example use and have the copper of 10-50% alloying element as prealloy.Alloying element or prealloy add with the form of block or the form of small grains.Add with spheric granules especially and proved effective.In addition also can alloy wire or add with ingot.
Under the situation of the device (11) that uses weighing device for example shown in Figure 8 (8) and measurement casting efficient, measure the volume melting amount of liquation continuously in the position of alloying.Measured value thus, feed controller can be judged the balance of feeding coal and determine essential feeding coal.When preparing enough material blends, it is preferred adding alloying element before solidifying continuously, yet discontinuous adding alloying element also is feasible.
Under the oxygen content the unknown of this external copper melt or the situation of fluctuation, measure oxygen content continuously or at least discontinuously in the position of alloying and proved favourable.In error range, improve the also essential addition that improves alloying element of oxygen content, thereby alloying element is a content given in advance in the feasible product that solidifies.
The uniformity of the weight content of alloying element material length along the line can solidify that the actual content of alloying element is further improved in the wire rod by measuring continuously or at least discontinuously.For example can adopt spectra methods to realize.Before solidifying, wire rod in liquation, measures the content of alloying element by detector according to the method variant of a simplification.
The little crystallite dimension that reaches by the method according to this invention also makes the crystal boundary stabilisation, and this allows the degree of deformation of raising and higher deformation velocity.This has great importance for cold deformation especially.Form short smear metal in addition when cut owing to less crystallite dimension, it makes process control of the best become possibility.The side cut that forms also have than traditional material littler pass, littler grade and littler shear fracture zone.
Another advantage of less grainiess is, forms more unconspicuous sliding line when cold deformation on the surface of section bar.The content of alloying element makes it have enhanced corrosion resistance in addition.
According to an embodiment, the phosphorus with 55ppm joins in the copper in this embodiment, can make recrystallization temperature improve about 80-100 ℃.This makes it have the calorific intensity of high conductivity and raising.
According to another embodiment, use have greater than 99.995% copper and in the starting stage copper melt less than 5ppm oxygen.At this moment phosphorus content is set to 5 to 10ppm.Conductivity reaches 101%IACS at least when little crystallite dimension thus.For reaching the conductivity of 100%IACS at least, select the phosphorus content of 5-20ppm, be preferably the phosphorus content of 15-20ppm.For the conductivity of 98.3%IACS at least, the phosphorus content of 5-30ppm proves suitable, is preferably the phosphorus content of 25-30ppm.
Realize that by the alloying element content that uses suggestion little crystallite dimension has following advantage in copper melt in addition, copper reaction to defective when heat treatment is insensitive.When annealing time is long, after this recrystallization for the second time will obviously appear especially.
Claims (34)
1. copper cash, its average copper content is at least 99.95 weight % and contains at least a and alloying element copper alloying, it is characterized in that, the ratio of the weight content of alloying element and the weight content of residual oxygen is 0.8 to 1.7, and the maximum weight content that the maximum of the weight content of alloying element material length along the line changes the gold element that is involutory is 25%.
2. according to the copper cash of claim 1, it is characterized in that alloying element is made of phosphorus.
3. according to the copper cash of claim 1, it is characterized in that alloying element is made of boron.
4. according to the copper cash of claim 1, it is characterized in that alloying element is made of lithium.
5. according to the copper cash of one of claim 1 to 4, it is characterized in that, in copper, contain the alloying element of 5ppm to 60ppm.
6. according to the copper cash of one of claim 1 to 5, it is characterized in that average grain size is 30 microns to the maximum.
7. according to the copper cash of one of claim 1 to 6, it is characterized in that alloying element at least a portion is gathered at each crystal boundary place.
8. according to the copper cash of one of claim 1 to 7, it is characterized in that alloying element at least a portion is packed in the atomic lattice of each crystal grain.
9. according to the copper cash of one of claim 1 to 8, it is characterized in that it is 20% that the maximum of the weight content of alloying element material length along the line changes relative its maximum weight content.
10. one kind prepares the method that average copper content is the copper cash of at least 99.95 weight %, add at least a alloying element in the copper in the method and the preparation process of this method comprises casting cycle, it is characterized in that, copper melt and ambiance are completely cut off solidifies until it, and the ratio that will add the weight content of residual oxygen in the weight content of alloying element and the copper melt is adjusted between 0.8 to 1.7, and this ratio material length along the line keeps substantially constant.
11. the method according to claim 10 is characterized in that, the content of alloying element is recorded by at least one test probe in the copper.
12. the method according to claim 11 is characterized in that, the content of alloying element is recorded by the test probe in the molten copper zone.
13. the method according to claim 11 is characterized in that, the content of alloying element is recorded by the test probe that solidifies in the wire rod zone.
14. the method according to one of claim 10 to 13 is characterized in that, regulates the conductivity of copper by the content of alloying element in the copper.
15. the method according to one of claim 10 to 14 is characterized in that, when oxygen content improves, in the alloying element adding copper with higher weight content.
16. the method according to one of claim 10 to 15 is characterized in that copper cash makes by direct pouring.
17. the method according to one of claim 10 to 15 is characterized in that, copper cash makes by casting and thermal deformation.
18. the method according to one of claim 10 to 15 is characterized in that copper cash makes by cold deformation.
19. the method according to one of claim 10 to 18 is characterized in that alloying element joins the copper in guide groove.
20. the method according to one of claim 10 to 18 is characterized in that, alloying element joins the copper in the pond of bottom.
21. the method according to one of claim 10 to 18 is characterized in that alloying element joins in the copper in casting die.
22. the method according to one of claim 10 to 18 is characterized in that, alloying element is gone into to copper in the pond on top.
23. the method according to one of claim 10 to 18 is characterized in that alloying element joins in the copper in holding furnace.
24. the method according to one of claim 10 to 18 is characterized in that, alloying element joins in the copper in the zone of liquation jet.
25. the method according to one of claim 10 to 24 is characterized in that, alloying element is that the form with pure material joins in the copper basically.
26. the method according to one of claim 10 to 24 is characterized in that, alloying element is that the form with prealloy joins in the copper basically.
27. the method according to one of claim 10 to 26 is characterized in that, measures the oxygen content of copper melt and measurement result is sent in the feed controller.
28. method according to one of claim 10 to 27, it is characterized in that, measure the weight content of contained alloying element in the copper technically and in the Control Circulation of a sealing, use feed controller and charging gear to make the weight content of contained alloying element material length maintenance along the line substantially constant in the copper.
29. the method according to one of claim 10 to 28 is characterized in that, during by selected alloying element feed the feed of all alloying element total contents in the copper is controlled to determine feeding coal.
30. device that is used to prepare copper cash, it has at least one stove and a pouring device of being used to prepare copper melt, it is characterized in that, the charging gear (10) that is used to add at least a alloying element links to each other with feed controller (9), and is used to survey the device (11) that the transducer (7) of smelting furnace weight and is used to survey casting efficient with at least one and links to each other.
31. the device according to claim 30 is characterized in that, this stove is placed on the weighing device (8).
32. the device according to claim 30 or 31 is characterized in that, this stove is made of smelting furnace.
33. the device according to claim 30 or 31 is characterized in that, this stove is made of casting furnace.
34. the device according to one of claim 30 to 33 is characterized in that, the feed controller is connected with the transducer that is used to measure the copper melt oxygen content.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004010040.3 | 2004-03-02 | ||
| DE102004010040A DE102004010040A1 (en) | 2004-03-02 | 2004-03-02 | Copper wire and method and apparatus for making a copper wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1664961A true CN1664961A (en) | 2005-09-07 |
Family
ID=34745337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200510051811.5A Pending CN1664961A (en) | 2004-03-02 | 2005-03-02 | Copper wire and method and device for manufacturing copper wire |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20050247384A1 (en) |
| EP (1) | EP1571232A3 (en) |
| JP (1) | JP2005251749A (en) |
| CN (1) | CN1664961A (en) |
| DE (1) | DE102004010040A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106756706A (en) * | 2016-12-15 | 2017-05-31 | 惠州德晋昌光电科技有限公司 | Ultra-fine copper wire hot tinning process |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637657A (en) * | 2011-02-15 | 2012-08-15 | 宋东升 | Single crystal copper bonding lead and preparation method thereof |
| JP5998758B2 (en) * | 2012-08-31 | 2016-09-28 | 三菱マテリアル株式会社 | Rough drawn copper wire and winding, and method for producing rough drawn copper wire |
| JP6361194B2 (en) | 2014-03-14 | 2018-07-25 | 三菱マテリアル株式会社 | Copper ingot, copper wire, and method for producing copper ingot |
| US11101234B2 (en) * | 2014-08-29 | 2021-08-24 | Nippon Micrometal Corporation | Cu pillar cylindrical preform for semiconductor connection |
| DE102019105453A1 (en) * | 2019-03-04 | 2020-09-10 | Kme Mansfeld Gmbh | A method for continuously manufacturing a copper alloy product |
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| DE2620831C2 (en) * | 1976-05-11 | 1984-03-15 | Elektroschmelzwerk Kempten GmbH, 8000 München | Process for the production of oxygen-free copper castings and copper moldings |
| JPS55128353A (en) * | 1979-03-28 | 1980-10-04 | Hitachi Seisen Kk | Manufacture of copper alloy wire |
| GB2048954B (en) * | 1979-03-24 | 1983-11-23 | Hitachi Wire Rod | Method of manufacturing a copper alloy wire |
| HU186907B (en) * | 1982-02-23 | 1985-10-28 | Csepel Muevek Femmueve | Method and apparatus for producing alloyed copper wire by continuous wire casting |
| DE3427034C2 (en) * | 1984-07-21 | 1996-06-27 | Km Europa Metal Ag | Use of an oxygen-free copper deoxidized by boron or lithium for hollow profiles |
| JPS6411932A (en) * | 1987-07-06 | 1989-01-17 | Hitachi Cable | High pure oxygen-free copper and its use |
| KR900019209A (en) * | 1988-05-18 | 1990-12-24 | 나가노 다께시 | Ultra fine wire made of copper alloy and semiconductor device using same |
| JPH0663767A (en) * | 1992-08-12 | 1994-03-08 | Furukawa Electric Co Ltd:The | Electrode wire for welding for can making |
| JP3279374B2 (en) * | 1993-02-05 | 2002-04-30 | 日立電線株式会社 | Copper alloy wire and method of manufacturing the same |
| US6123788A (en) * | 1993-04-19 | 2000-09-26 | Electrocopper Products Limited | Copper wire and process for making copper wire |
| JPH09316568A (en) * | 1996-05-23 | 1997-12-09 | Furukawa Electric Co Ltd:The | Oxygen-free copper for high vacuum equipment and its production |
| JP3725620B2 (en) * | 1996-06-21 | 2005-12-14 | 同和鉱業株式会社 | Method and apparatus for producing high purity copper single crystal |
| JPH10245647A (en) * | 1997-03-06 | 1998-09-14 | Furukawa Electric Co Ltd:The | Copper wire rod for insulation-coated electric wire and its production |
| US6077364A (en) * | 1997-06-30 | 2000-06-20 | Phelps Dodge Industries, Inc. | Copper trolley wire and a method of manufacturing copper trolley wire |
| JPH11176769A (en) * | 1997-12-15 | 1999-07-02 | Toshiba Corp | Sputtering target and copper wiring film |
| JP2000005848A (en) * | 1998-06-23 | 2000-01-11 | Kitz Corp | Melting copper alloy supplying device |
-
2004
- 2004-03-02 DE DE102004010040A patent/DE102004010040A1/en not_active Withdrawn
-
2005
- 2005-01-19 EP EP05000986A patent/EP1571232A3/en not_active Withdrawn
- 2005-02-28 US US11/069,831 patent/US20050247384A1/en not_active Abandoned
- 2005-03-02 CN CN200510051811.5A patent/CN1664961A/en active Pending
- 2005-03-02 JP JP2005057318A patent/JP2005251749A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106756706A (en) * | 2016-12-15 | 2017-05-31 | 惠州德晋昌光电科技有限公司 | Ultra-fine copper wire hot tinning process |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1571232A2 (en) | 2005-09-07 |
| JP2005251749A (en) | 2005-09-15 |
| EP1571232A3 (en) | 2005-12-21 |
| US20050247384A1 (en) | 2005-11-10 |
| DE102004010040A1 (en) | 2005-09-15 |
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