CN105063412A - High-conductivity oxygen-free copper silver alloy rod and production technology thereof - Google Patents
High-conductivity oxygen-free copper silver alloy rod and production technology thereof Download PDFInfo
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- CN105063412A CN105063412A CN201510455232.0A CN201510455232A CN105063412A CN 105063412 A CN105063412 A CN 105063412A CN 201510455232 A CN201510455232 A CN 201510455232A CN 105063412 A CN105063412 A CN 105063412A
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Abstract
The invention relates to a high-conductivity oxygen-free copper silver alloy rod and a production technology thereof. The alloy rod comprises the following components of silver, copper and oxygen, wherein the content of the silver is 0.03%-0.10%, a fluctuation range of the content of the silver is 10ppm, the content of the copper and the silver is higher than 99.99%, and the content of the oxygen is lower than 5ppm. The conductivity of the alloy rod is higher than 100%IACS, the tensile strength of the alloy rod is higher than 190MPa, the extension rate of the alloy rod is higher than 37%, the Brinell hardness of the alloy rod is HB66-75, and the dimensional tolerance of the alloy rod is smaller than 0.1mm. The production technology of the high-conductivity oxygen-free copper silver alloy rod disclosed by the invention adopts a high-efficiency energy-saving continuous production method, and properties are excellent.
Description
Technical field
The present invention relates to a kind of oxygen-free high conductivity type copper silver alloys bar and production technique thereof, be mainly used in the fields such as automobile, electric railway, electrical contact switch, generator or aerospace.
Background technology
Kufil is in Copper substrate, add a small amount of silver, on the specific conductivity of Copper substrate and thermal conductivity impact little, also very micro-on the impact of its plasticity, but recrystallization temperature and the high temperature creep strength of copper can be significantly improved.Therefore, the Kufil of silver content 0.03wt% ~ 0.30wt% is the electrical material that a kind of practical value is very high.
Oxygen-free high conductivity type copper silver alloys is mainly used in the fields such as automobile, electric railway, electrical contact switch, generator or aerospace, the production of current internal copper silver alloy mainly relies on traditional casting technique to produce, oxygen level is high, composition fluctuation is large, stability is poor, traditional in addition to prepare processing process long, and holistic cost is high, causes current domestic oxygen-free high conductivity type copper silver alloys cannot meet the active demand of high-end market.
Summary of the invention
For the above-mentioned technical problem of prior art, the object of this invention is to provide a kind of oxygen-free high conductivity type copper silver alloys bar and production technique thereof, this Kufil bar any surface finish, tolerance of dimension is less than 0.1mm, excellent performance.
For achieving the above object, the present invention is achieved by the following technical solutions:
A kind of oxygen-free high conductivity type copper silver alloys bar, the composition of described rod of metal alloy is: silver content is 0.03%-0.10%, and described silver content fluctuation range is 10ppm, and copper and silver content are greater than 99.99%, and oxygen level is less than 5ppm; The electric conductivity of described rod of metal alloy is greater than 100%IACS, and tensile strength is greater than 190MPa, and unit elongation is greater than 37%, Brinell hardness HB66-75, and tolerance of dimension is less than 0.1mm.
A production technique for oxygen-free high conductivity type copper silver alloys bar, comprises the following steps: employing is drawn main frequency furnace and carry out melting, draws main frequency furnace and comprise smelting furnace and holding furnace on described, wherein, in smelting furnace, add copper and silver, and melt, smelting furnace temperature is 1165-1169 DEG C; Install in holding furnace crystallizer carry out on draw Kufil bar, holding furnace temperature is 1161-1164 DEG C, and the water pressure of cooling water of crystallizer is 0.31-0.35MPa.
In smelting furnace, proportionally add copper and silver, when the Kufil bar of preparation 0.03%, the weight ratio of adding copper and silver in smelting furnace is 3333:1.As added the silver of 200Kg copper and 60g in smelting furnace.
Described copper is Cu-CATH-1, and described silver is the silver ingot that content is greater than 99.99%.
Add charcoal in described smelting furnace to cover, charcoal thickness is 50mm-200mm; Adopt graphite phosphorus powder to cover in described holding furnace, the thickness of graphite phosphorus powder is 30mm-100mm.
The pitch of drawing Kufil bar on described is 4.5-4.7mm, and the speed of above drawing Kufil bar is 700-750mm/min.
Beneficial effect of the present invention is as follows:
Oxygen-free high conductivity type copper silver alloys bar of the present invention, excellent performance, stable components.Silver content is stablized, and fluctuation range is 10ppm, and copper and silver content are greater than 99.99%, and oxygen level is less than 5ppm.Electric conductivity is greater than 100%IACS, and tensile strength is greater than 190MPa, and unit elongation is greater than 37%, Brinell hardness HB66-75, and tolerance of dimension is less than 0.1mm.
The production technique of oxygen-free high conductivity type copper silver alloys bar of the present invention, adopts energy-efficient continuous production method, excellent performance.
Embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to this.
embodiment 1
The production technique of the present embodiment 1 oxygen-free high conductivity type copper silver alloys bar, comprises the following steps: employing is drawn main frequency furnace and carry out melting, above draws main frequency furnace and comprise smelting furnace and holding furnace.
1, in smelting furnace, proportionally add copper and silver, when the Kufil bar of preparation 0.03%, add the silver of 200Kg copper and 60g, and melt in smelting furnace, smelting furnace temperature is 1165 DEG C; Add charcoal in smelting furnace to cover, charcoal thickness is 50mm.
2, install in holding furnace crystallizer carry out on draw Kufil bar, holding furnace temperature is 1161 DEG C, and the water pressure of cooling water of crystallizer is 0.31MPa.Adopt graphite phosphorus powder to cover in holding furnace, the thickness of graphite phosphorus powder is 30mm.
Copper in the present embodiment 1 is Cu-CATH-1, the silver ingot that silver is greater than 99.99% for content.On draw Kufil bar pitch be 4.5mm, the speed of above drawing Kufil bar is 700mm/min.
The composition of the oxygen-free high conductivity type copper silver alloys bar that the present embodiment 1 is obtained is: silver content is 0.03%%, and silver content fluctuation range is 10ppm, and copper and silver content are greater than 99.99%, and oxygen level is less than 5ppm; The electric conductivity of rod of metal alloy is greater than 100%IACS, and tensile strength is greater than 190MPa, and unit elongation is greater than 37%, Brinell hardness HB66, and tolerance of dimension is less than 0.1mm, this oxygen-free high conductivity type copper silver alloys bar, excellent performance, stable components.
embodiment 2
The production technique of the present embodiment 2 oxygen-free high conductivity type copper silver alloys bar, comprises the following steps: employing is drawn main frequency furnace and carry out melting, above draws main frequency furnace and comprise smelting furnace and holding furnace.
1, in smelting furnace, proportionally add copper and silver, when the Kufil bar of preparation 0.03%, add the silver of 200Kg copper and 60g, and melt in smelting furnace, smelting furnace temperature is 1169 DEG C; Add charcoal in smelting furnace to cover, charcoal thickness is 200mm.
2, install in holding furnace crystallizer carry out on draw Kufil bar, holding furnace temperature is 1164 DEG C, and the water pressure of cooling water of crystallizer is 0.35MPa.Adopt graphite phosphorus powder to cover in holding furnace, the thickness of graphite phosphorus powder is 100mm.
Copper in the present embodiment 2 is Cu-CATH-1, the silver ingot that silver is greater than 99.99% for content.On draw Kufil bar pitch be 4.7mm, the speed of above drawing Kufil bar is 750mm/min.
The composition of the oxygen-free high conductivity type copper silver alloys bar that the present embodiment 2 is obtained is: silver content is 0.10%, and silver content fluctuation range is 10ppm, and copper and silver content are greater than 99.99%, and oxygen level is less than 5ppm; The electric conductivity of rod of metal alloy is greater than 100%IACS, and tensile strength is greater than 190MPa, and unit elongation is greater than 37%, Brinell hardness HB75, and tolerance of dimension is less than 0.1mm, this oxygen-free high conductivity type copper silver alloys bar, excellent performance, stable components.
embodiment 3
The production technique of the present embodiment 3 oxygen-free high conductivity type copper silver alloys bar, comprises the following steps: employing is drawn main frequency furnace and carry out melting, above draws main frequency furnace and comprise smelting furnace and holding furnace.
1, in smelting furnace, proportionally add copper and silver, when the Kufil bar of preparation 0.03%, add the silver of 200Kg copper and 60g, and melt in smelting furnace, smelting furnace temperature is 1167 DEG C; Add charcoal in smelting furnace to cover, charcoal thickness is 125mm.
2, install in holding furnace crystallizer carry out on draw Kufil bar, holding furnace temperature is 1163 DEG C, and the water pressure of cooling water of crystallizer is 0.33MPa.Adopt graphite phosphorus powder to cover in holding furnace, the thickness of graphite phosphorus powder is 65mm.
Copper in the present embodiment 3 is Cu-CATH-1, the silver ingot that silver is greater than 99.99% for content.On draw Kufil bar pitch be 4.6mm, the speed of above drawing Kufil bar is 725mm/min.
The composition of the oxygen-free high conductivity type copper silver alloys bar that the present embodiment 3 is obtained is: silver content is 0.05%, and silver content fluctuation range is 10ppm, and copper and silver content are greater than 99.99%, and oxygen level is less than 5ppm; The electric conductivity of described rod of metal alloy is greater than 100%IACS, and tensile strength is greater than 190MPa, and unit elongation is greater than 37%, Brinell hardness HB70, and tolerance of dimension is less than 0.1mm, this oxygen-free high conductivity type copper silver alloys bar, excellent performance, stable components.
The production technique of oxygen-free high conductivity type copper silver alloys bar of the present invention, adopts energy-efficient continuous production method, superior performance.
Above-described embodiment only illustrates inventive concept of the present invention for explaining, but not the restriction to rights protection of the present invention, all changes utilizing this design the present invention to be carried out to unsubstantiality, all should fall into protection scope of the present invention.
Claims (7)
1. an oxygen-free high conductivity type copper silver alloys bar, is characterized in that the composition of described rod of metal alloy is: silver content is 0.03%-0.10%, and described silver content fluctuation range is 10ppm, and copper and silver content are greater than 99.99%, and oxygen level is less than 5ppm; The electric conductivity of described rod of metal alloy is greater than 100%IACS, and tensile strength is greater than 190MPa, and unit elongation is greater than 37%, Brinell hardness HB66-75, and tolerance of dimension is less than 0.1mm.
2. a production technique for oxygen-free high conductivity type copper silver alloys bar, is characterized in that comprising the following steps:
Employing is drawn main frequency furnace and carry out melting, draw main frequency furnace and comprise smelting furnace and holding furnace on described, wherein, add copper and silver, and melt in smelting furnace, smelting furnace temperature is 1165-1169 DEG C; Install in holding furnace crystallizer carry out on draw Kufil bar, holding furnace temperature is 1161-1164 DEG C, and the water pressure of cooling water of crystallizer is 0.31-0.35MPa.
3. the production technique of oxygen-free high conductivity type copper silver alloys bar as claimed in claim 2, is characterized in that:
In smelting furnace, proportionally add copper and silver, when the Kufil bar of preparation 0.03%, the weight ratio of adding copper and silver in smelting furnace is 3333:1.
4. the production technique of oxygen-free high conductivity type copper silver alloys bar as claimed in claim 3, is characterized in that: when the Kufil bar of preparation 0.03%, adds the silver of 200Kg copper and 60g in smelting furnace.
5. the production technique of oxygen-free high conductivity type copper silver alloys bar as claimed in claim 2, it is characterized in that: described copper is Cu-CATH-1, described silver is the silver ingot that content is greater than 99.99%.
6. the production technique of oxygen-free high conductivity type copper silver alloys bar as claimed in claim 2, is characterized in that: add charcoal in described smelting furnace and cover, charcoal thickness is 50mm-200mm; Adopt graphite phosphorus powder to cover in described holding furnace, the thickness of graphite phosphorus powder is 30mm-100mm.
7. the production technique of oxygen-free high conductivity type copper silver alloys bar as claimed in claim 2, it is characterized in that: the pitch of drawing Kufil bar on described is 4.5-4.7mm, the speed of above drawing Kufil bar is 700-750mm/min.
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| CN201510455232.0A CN105063412A (en) | 2015-07-30 | 2015-07-30 | High-conductivity oxygen-free copper silver alloy rod and production technology thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108118175A (en) * | 2017-11-30 | 2018-06-05 | 重庆鸽牌电线电缆有限公司 | The preparation method of large capacity phase modifier silver-bearing copper pole |
| CN108265194A (en) * | 2018-01-09 | 2018-07-10 | 北京有色金属研究总院 | A kind of railway power through track copper alloy conductor and preparation method thereof |
| CN108359837A (en) * | 2018-03-16 | 2018-08-03 | 重庆鸽牌电工材料有限公司 | A kind of preparation method of the high silver-bearing copper pole of high-purity anaerobic |
| CN108838356A (en) * | 2018-07-18 | 2018-11-20 | 中铝华中铜业有限公司 | A kind of continuous casting producing method of anaerobic silver-bearing copper |
| CN108842092A (en) * | 2018-07-06 | 2018-11-20 | 福州大学 | A kind of silver-containing antibacterial copper alloy and preparation method thereof |
-
2015
- 2015-07-30 CN CN201510455232.0A patent/CN105063412A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 徐高磊等: "高纯高导无氧铜棒制造新技术", 《特种铸造及有色合金》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108118175A (en) * | 2017-11-30 | 2018-06-05 | 重庆鸽牌电线电缆有限公司 | The preparation method of large capacity phase modifier silver-bearing copper pole |
| CN108265194A (en) * | 2018-01-09 | 2018-07-10 | 北京有色金属研究总院 | A kind of railway power through track copper alloy conductor and preparation method thereof |
| CN108359837A (en) * | 2018-03-16 | 2018-08-03 | 重庆鸽牌电工材料有限公司 | A kind of preparation method of the high silver-bearing copper pole of high-purity anaerobic |
| CN108842092A (en) * | 2018-07-06 | 2018-11-20 | 福州大学 | A kind of silver-containing antibacterial copper alloy and preparation method thereof |
| CN108838356A (en) * | 2018-07-18 | 2018-11-20 | 中铝华中铜业有限公司 | A kind of continuous casting producing method of anaerobic silver-bearing copper |
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