CN102383002A - Copper-based alloy for cable shielding - Google Patents
Copper-based alloy for cable shielding Download PDFInfo
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- CN102383002A CN102383002A CN2011103288290A CN201110328829A CN102383002A CN 102383002 A CN102383002 A CN 102383002A CN 2011103288290 A CN2011103288290 A CN 2011103288290A CN 201110328829 A CN201110328829 A CN 201110328829A CN 102383002 A CN102383002 A CN 102383002A
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Abstract
The invention discloses a copper-based alloy for cable shielding. The copper-based alloy is characterized in that the alloy comprises the following components by weight percent: 0.03-0.30% of Ag, 0.005-0.015% of Li, 0.05-0.20% of La, 0.05-0.20% of Y and the balance Cu. The alloy has high softening temperature; and compared with the prior art, the tensile strength and hardness are obviously increased and the weldability and oxidation resistance are also obviously increased, and the rate of the finished product and the energy consumption per ton product are obviously increased. The copper-based alloy is mainly used for power cable shielding.
Description
Technical field
The present invention relates to copper base alloy, particularly medium tenacity, combarloy base alloy are used for the making of cable shielding strip.
Background technology:
Improve the ability of the anti-EMI of power cable, ensure the reliability and stability of supply line, cable has adopted height to lead the material shield technology when producing mostly.According to the order requirement of cable manufacturing enterprise, most cable shielding strips all are the T2 or the TP1 copper strips of soft attitude (M attitude), in cable shielding strip production and use, have following problem:
1, cable shielding strip easily oxidation stain between transportation and shelf lives causes spiral overlap joint interfacial conductive bad and scrap;
2, the quality problems of fracture, gauffer and landing edge perk often appear in cable shielding strip in winding process, and its reason is to cross when low when the cable shield band strength of soft attitude, is prone to fracture and gauffer; And hardness and intensity are too high, then are prone to landing edge perk phenomenon.Existing cable screens is all stipulated to make with fine copper with the copper strips national standard; Also stipulated Y8, Y4 and three kinds of states of M, its mechanical property requirements can not be too soft, can not be too hard; Be difficult to control in the actual production; Cause cable shielding strip product annealing back to be scrapped, repeat the increase that melting has caused the scaling loss and the energy consumption of copper, do not meet the cleaner production requirement owing to intensity is on the low side or too high.
CN1876863A discloses a kind of cable shield and has used copper alloy belt, and its composition is counted with weight %: Cr0.1～0.3, and Ti0.05～0.2, La0.01～0.1, surplus is Cu.This invention is actually the contriver's early stage (2005) of application of the present invention patented claim.Though the tensile strength of this invention copper alloy belt goes with TP1 than T2, its conductivity is morely lower than T2 and TP1, and its anti-oxidant discoloration is also good not enough, so in fact this invention copper alloy belt is not good material as cable shielding strip.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art; Particularly fine copper cable shielding strip recrystallization temperature is low, crystal grain is prone to grow up, intensity is low, the technological deficiency of easy oxidation; Provide a kind of electric property and T2 or TP1 approaching, but mechanical property, use characteristics and antioxidant property are superior to the copper-based alloy material of T2 or TP1.
Technical solution of the present invention is; For addressing the above problem; The present invention has designed strong cable shield copper-based alloy material in high the leading; To solve cable shielding strip stability difference and intensity problem of lower, reach and improve energy saving purposes in cable shield band strength and lumber recovery and the production process.
Concrete technical scheme of the present invention is in the copper matrix, to add on a small quantity copper processing characteristics and electroconductibility are influenced minimum elements A g, Li, La, Y, reaches the purpose of organizational structure, crystal grain thinning, raising recrystallization temperature and the intensity of improving copper.
Cable shield of the present invention is used copper base alloy, it is characterized in that, the composition of said alloy is counted with weight %: Ag 0.03～0.30, and Li 0.005～0.015, and La 0.05～0.20, and Y 0.05～0.20, the Cu surplus.
Add a small amount of Ag in the copper, its specific conductivity descends few, and is also very little to the influence of plasticity, but can significantly improve recrystallization temperature and intensity.Adding micro-Li in the copper can generate high melting compound with residual harmful low melting point metal in the copper, improves the high-temp plastic of copper and does not influence the specific conductivity of copper; Add The addition of C e and Y, can generate high melting compound with detrimental impurity such as S in the copper base alloy, O, H, be refinement disperse shape to be distributed in the copper liquid, effective crystal grain thinning improves processing characteristics and physics, the chemical property of copper base alloy.
Compare with prior art, the present invention has following beneficial effect:
1, the recrystallization temperature of copper base alloy of the present invention significantly improves than prior art;
2, the tensile strength of copper base alloy of the present invention and hardness ratio prior art are significantly improved;
3, the welding property of copper base alloy of the present invention and antioxidant property significantly improve than prior art;
4, the product lumber recovery of copper base alloy of the present invention and ton product energy consumption are significantly improved than prior art.
Embodiment
Through embodiment the present invention is further specified below.Press composition shown in the table 1, copper is melted in medium-frequency induction furnace, add the Ag refining, temperature transfers to pouring temperature; Add CuLi, CuLa, the CuY alloy of preparation, stir, the casting billet; Carry out routine processing by the fine copper complete processing, process sample, measure its recrystallization temperature, tensile strength and hardness; Carry out the test of welding property and antioxidant property, the result compares with the national standard trade mark product T2 and the TP1 of a large amount of uses now, and the result lists in table 2.
Can find out that from table 2 result the conductivity and the prior art of copper base alloy of the present invention are approaching, but its comprehensive mechanical property, antioxidant property obviously are superior to prior art.
Table 1 embodiment alloying constituent table
Table 2 The performance test results table
Claims (1)
1. a cable shield is used copper base alloy, it is characterized in that, the composition of said alloy is counted with weight %: Ag 0.03～0.30, and Li 0.005～0.015, and La 0.05～0.20, and Y 0.05～0.20, the Cu surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103288290A CN102383002A (en) | 2011-10-26 | 2011-10-26 | Copper-based alloy for cable shielding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103288290A CN102383002A (en) | 2011-10-26 | 2011-10-26 | Copper-based alloy for cable shielding |
Publications (1)
| Publication Number | Publication Date |
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| CN102383002A true CN102383002A (en) | 2012-03-21 |
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| CN2011103288290A Pending CN102383002A (en) | 2011-10-26 | 2011-10-26 | Copper-based alloy for cable shielding |
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| CN (1) | CN102383002A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103572091A (en) * | 2013-11-22 | 2014-02-12 | 湖南稀土金属材料研究院 | Copper alloy material, preparation method thereof and copper lead prepared thereby |
| CN105112714A (en) * | 2015-09-08 | 2015-12-02 | 周欢 | High-conductivity copper alloy material |
| CN105112718A (en) * | 2015-09-08 | 2015-12-02 | 张超 | Copper-rare earth alloy |
| CN105112721A (en) * | 2015-09-08 | 2015-12-02 | 周欢 | Copper-rare earth alloy material |
| CN108239709A (en) * | 2016-12-27 | 2018-07-03 | 北京有色金属研究总院 | A kind of elastic copper alloy and its strip and composite heat treating method |
| CN111724945A (en) * | 2020-06-23 | 2020-09-29 | 浦大电缆集团有限公司 | Manufacturing method of environment-friendly insulated cable |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH06184671A (en) * | 1992-12-18 | 1994-07-05 | Mitsubishi Materials Corp | Pitting corrosion resistant copper alloy piping for feeding water and hot water |
| CN1930314A (en) * | 2004-03-12 | 2007-03-14 | 住友金属工业株式会社 | Copper alloy and process for producing the same |
| CN101984106A (en) * | 2010-11-10 | 2011-03-09 | 河南通宇冶材集团有限公司 | Low silver-copper alloy board for thin slab continuous casting crystallizer and manufacturing method thereof |
-
2011
- 2011-10-26 CN CN2011103288290A patent/CN102383002A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06184671A (en) * | 1992-12-18 | 1994-07-05 | Mitsubishi Materials Corp | Pitting corrosion resistant copper alloy piping for feeding water and hot water |
| CN1930314A (en) * | 2004-03-12 | 2007-03-14 | 住友金属工业株式会社 | Copper alloy and process for producing the same |
| CN101984106A (en) * | 2010-11-10 | 2011-03-09 | 河南通宇冶材集团有限公司 | Low silver-copper alloy board for thin slab continuous casting crystallizer and manufacturing method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103572091A (en) * | 2013-11-22 | 2014-02-12 | 湖南稀土金属材料研究院 | Copper alloy material, preparation method thereof and copper lead prepared thereby |
| CN103572091B (en) * | 2013-11-22 | 2015-11-25 | 湖南稀土金属材料研究院 | Cu alloy material, its preparation method and copper conductor prepared therefrom |
| CN105112714A (en) * | 2015-09-08 | 2015-12-02 | 周欢 | High-conductivity copper alloy material |
| CN105112718A (en) * | 2015-09-08 | 2015-12-02 | 张超 | Copper-rare earth alloy |
| CN105112721A (en) * | 2015-09-08 | 2015-12-02 | 周欢 | Copper-rare earth alloy material |
| CN108239709A (en) * | 2016-12-27 | 2018-07-03 | 北京有色金属研究总院 | A kind of elastic copper alloy and its strip and composite heat treating method |
| CN108239709B (en) * | 2016-12-27 | 2020-07-17 | 有研工程技术研究院有限公司 | Elastic copper alloy, strip and strip thereof and composite heat treatment method |
| CN111724945A (en) * | 2020-06-23 | 2020-09-29 | 浦大电缆集团有限公司 | Manufacturing method of environment-friendly insulated cable |
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Application publication date: 20120321 |