CN1811997A - Copper-tin alloy conducting wire and producing method thereof - Google Patents
Copper-tin alloy conducting wire and producing method thereof Download PDFInfo
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- CN1811997A CN1811997A CN 200510048747 CN200510048747A CN1811997A CN 1811997 A CN1811997 A CN 1811997A CN 200510048747 CN200510048747 CN 200510048747 CN 200510048747 A CN200510048747 A CN 200510048747A CN 1811997 A CN1811997 A CN 1811997A
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Abstract
This invention relates to a CuSn lead composed of the following weight percentage: Sn: 0.1-0.5%, Cu: 99.5-99.1%. This invention applies conticasting and tandem rolling technology to add pure cathode Cu into an induction furnace and control the fluid temperature at 1115-1130deg.C, then adds Sn particles or ingots in it and the melt fluid flows into a pouring basket continuously via a chute and the temperature in it is controlled at 1110-1135deg.C to be poured into a pulley casting machine with the rotating speed of 810-950rpm via a pipe then to be cured to get the ingot under the pressure of the cooling water of 0.05-0.35Mpa and the ingot is sent into a rolling machine with the operating speed of 725-850rpm and the temperature of 740-810deg.C to form a CuSn alloy wire ingot to be cold-drawn or extruded by a contact line drawing device or an extrusion device to produce contact wires and bearing cables specially used in high speed electrified railways.
Description
One, technical field
The present invention relates to non-ferrous metal processing, particularly a kind of copper-tin alloy conducting wire and production method thereof.
Two, background technology
The electric locomotive contact line is the grid to the electric locomotive power supply that set up in the downline sky, and contact line conducting wire and carrier cable are important component parts wherein.The fine copper and the Kufil contact line conducting wire series of products of domestic production at present are only applicable to the electric train of the speed of service in the 140-200KM/H scope, and be applicable to that the contact wire of the above electric train operation of 250km/h and the production of carrier cable product also belong to blank, the whole dependence on import of required product.
Three, summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned prior art, a kind of copper-tin alloy conducting wire is provided, copper-tin alloy conducting wire is tin content by weight percentage: 0.1～0.5%; Copper content: 99.5～99.1%, it is particularly suitable for the electric train operation of the speed of service more than 250km/h and uses.
Production method of the present invention is: qualified Cu-CATH-1 is added electric induction furnace, and tough cathode will meet GB/T467-1997 (Cu-CATH-1) standard.The limit is reinforced, fusing of marginization, and the copper liquid temperature in the control stove is at 1115～1130 ℃; Employing quantitatively adds the tin device and adds tin, utilizes timer intermittently to add the tin grain; Can be on chute top, tundish or directly add at electric induction furnace.The liquid metals of fusing flows into tundish continuously through chute, and the control tundish temperature is 1110～1135 ℃; Injecting rotary speed through depositing again is in the tyre type casting machine of 810～950rpm, and the control cooling water pressure is 0.05～0.35Mpa, through the cooled and solidified moulding, to guarantee to obtain superior in quality strand.Strand is sent in the milling train that the speed of service is 725～850rpm and is carried out continuous rolling after milling rib, finishing, and it is 740～810 ℃ that control advances to roll temperature, becomes the signal bronze line base of all size through the rolling deformation of multi-pass.The line base that is rolled into through cooling off, lubricate, clean, waxing, is delivered to coil winding machine coiling rolling by conveying system again, is 0.09～0.18Mpa at milling train and conveying inner control emulsion pressure, and the oil emulsion concentration of lubricated usefulness is 1～1.8%; Through after the assay was approved, compacting, pack, weigh, put in storage.According to client's different requirements, can produce the signal bronze line base of different size by changing the milling train technical parameter.
Through straightening processing, utilize contact wire drawing equipment or continuously extruded former to make the contact wire and the carrier cable product of high-speed electric railway special use through cold drawing or extrusion modling signal bronze line base.
The present invention is as follows according to the technological process that equipment disposition, characteristics and the electrician of existing SCR continuous casting and rolling production line make the production of signal bronze line base with the production technology of copper cash base:
---------------------------cooling is cleaned, and---------signal bronze line base is coiled, and------coil winding machine weighs conveying system tandem mill conditioning system strand the tyre type casting machine tundish chute electric induction furnace Cu-CATH-1---packing---warehouse-in in check to add the tin device.
The present invention has following advantage or good effect:
(1) quantitatively adds the tin device in the employing of chute top and add tin, utilize the per 60 seconds intermittent 56g of adding tin grains of timer, reduced production cost.
(2) signal bronze line base proportioning uniqueness of the present invention, alloy structure is mainly αGu Rongti, the Sn solid solution is in Cu, find no the tin oxide of remarkable increase and the field trash of pink salt on the crystal boundary, cast sturcture's crystal grain is thick, pore is more, after hot pressing processing, more processing twin tissue appears, grain size is evenly distributed, and pore is few, realizes that chute adds tin alloying.Significant reduction has all appearred in the elongation of the signal bronze bar that makes, and pull-off force all increases significantly.
(3) product provided by the invention adopts casting and rolling process production, produce the contact wire product that high-speed electric railway is used, realize that high-speed electric railway domesticizes with material, promote the process that high-speed electric railway is built energetically, the production method of this lead is simple, cost is low, easily realize industrialization.
Four, description of drawings
Fig. 1 is technological process of production figure of the present invention.
Five, embodiment
Embodiment one
6 tons of tough cathodes add in the electric induction furnace 1, add tin again, and tin content is controlled at 0.35% by weight percentage, when the temperature of copper water in the electric induction furnace 1 reaches 1115～1120 ℃, begin to produce.Copper liquid, is flowed in the tundish 3 through chute 2 by electric induction furnace 1.The temperature maintenance of tundish 3 is at 1110～1115 ℃, and copper liquid cools off in tyre type casting machine 4, control casting machine speed: 810rpm; Cooling water pressure is controlled at 0.05～0.35Mpa, and copper liquid is frozen into strand, and strand is through after the milling rib and handle of conditioning system 5, and enters tandem mill 6 under 740～760 ℃ of the temperature and is rolled advancing to roll, and rolling mill speed is controlled at 725～800rpm.Emulsion pressure in the tandem mill 6 is controlled at 0.09～0.13Mpa, oil emulsion concentration: 1～1.1%, and rolling product enters coil winding machine 9 coiling rolling through conveying 7 and pinch roll 8, obtains 5.99 tons signal bronze product.Through after the assay was approved, compacting, pack, weigh, put in storage.
Embodiment two
8 tons of tough cathodes add in the electric induction furnaces 1, and when the temperature maintenance of copper water in the electric induction furnace during at 1115～1125 ℃, copper liquid is flowed in the tundish 3 through chute 2 by electric induction furnace 1.At the tundish proportioning device, utilize timer to add tin grain 50～60g in intermittent per 60 seconds, tin content is controlled at 0.5% by weight percentage, and the temperature maintenance of tundish is at 1115～1120 ℃, copper liquid cools off in casting machine 4, control casting machine speed: 950rpm; Cooling water pressure is controlled at 0.10～0.30Mpa, and copper liquid is frozen into strand, and strand is through after the milling rib and handle of conditioning system 5, and enters milling train under 760～800 ℃ of the temperature and is rolled advancing to roll, and rolling mill speed is controlled at 750～800rpm.Emulsion pressure in the milling train 6 is controlled at 0.09～0.15Mpa, oil emulsion concentration: 1～1.3%, and rolling product enters coil winding machine 9 coiling rolling through conveying 7 and pinch roll 8, obtains 8.97 tons signal bronze product.Through after the assay was approved, compacting, pack, weigh, put in storage.
Embodiment three
15 tons of tough cathodes add in the electric induction furnaces 1, add tin again, and tin content is controlled at 0.5% by weight percentage, when the temperature maintenance of copper water in the electric induction furnace during at 1125～1130 ℃, begin to produce.Copper liquid, is flowed in the tundish 3 through chute 2 by electric induction furnace.The temperature maintenance of tundish is at 1125～1135 ℃, and copper liquid cools off in casting machine 4, control casting machine speed: 850rpm; Cooling water pressure is controlled at 0.06～0.22Mpa, and copper liquid is frozen into strand, and strand is through after the milling rib and handle of conditioning system 5, and enters milling train under 780～810 ℃ of the temperature and is rolled advancing to roll, and rolling mill speed is controlled at 730～850rpm.Emulsion pressure in the milling train 6 is controlled at 0.1～0.18Mpa, oil emulsion concentration: 1～1.2%, and rolling product enters coil winding machine 9 coiling rolling through conveying 7 and pinch roll 8, obtains 15.99 tons signal bronze product.Through after the assay was approved, compacting, pack, weigh, put in storage.
Embodiment four
9 tons of tough cathodes add in the electric induction furnaces 1, when the temperature maintenance of copper water in the electric induction furnace during at 1125～1130 ℃, begin to produce.Copper liquid is flowed in the tundish 3 through chute 2 by electric induction furnace.Quantitatively add the tin device in the employing of chute top and add tin, utilize timer to add 50～60g tin grain in intermittently per 60 seconds, tin content is controlled at 0.18% by weight percentage, and the temperature maintenance of tundish 3 is at 1125～1135 ℃, copper liquid cools off in casting machine 4, control casting machine speed: 900rpm; Cooling water pressure is controlled at 0.05～0.25Mpa, and copper liquid is frozen into strand, and strand is through after the milling rib and handle of conditioning system 5, and enters milling train 6 under 780～810 ℃ of the temperature and is rolled advancing to roll, and rolling mill speed is controlled at 750～800rpm.Emulsion pressure in the milling train is controlled at 0.12～0.18Mpa, oil emulsion concentration 1～1.3%, and rolling product enters coil winding machine 9 coiling rolling through conveying 7 and pinch roll 8, obtains 9.99 tons signal bronze product.Through after the assay was approved, compacting, pack, weigh, put in storage.
According to each embodiment more than the present invention, make Φ 18mm signal bronze blank and draw the contact wire of gained with blank, carry out the result such as the table 1 of every Performance Detection.
Table 1
| Oxygen content (ppm) | Tin content (ppm) | Elongation % | Pull-off force (KN) | Tensile strength (MPa) |
| 162.4--190.2 | 3032--3140 | 42--45 | 67--69.64 | 263.78--274.18 |
The 18mm signal bronze line base of trial-production draws out 1100 meters TCHC120 alloyed contact lines through the special-purpose drawbench of a machine four moulds and carries out every Performance Detection, 1100 meters TCHC120 alloyed contact lines are got 100 sections 1 meter long samples, carry out every physical and chemical index check, the every index such as the table 2 of test.
Table 2
| Product index | Test products | Ministry of Railways's rower |
| Outward appearance: | 1100 meters flawlesses, split the hole, stick up skin, injurous defect such as burr | Meet Ministry of Railways's rower |
| Size: | Meet Ministry of Railways's rower | |
| Sn content | Average 3032.14PPm | |
| Pull-off force (KN) | Average 48.44, minimum 47.5 | Be not less than 43.32 |
| Tensile strength (Mpa) | Average 403.56, minimum 395.80 | Be not less than 361 |
| Elongation | Average 4.37%, minimum 3.20% | Be not less than 2.80% |
| Resistivity (Ω mm2/m) | Average 0.02059, maximum 0.02083 | Be not more than 0.02463 |
| Conductivity (%AICS) | Average 83.73, minimum 82.77 | Be not less than 70.00 |
| Reverse to fracture | Average 6.21 times, minimum 5 times | Be not less than 3 times |
The contact wire of manufacturing experimently out is checked through Catenary Fittings inspection point, Ministry of Railways product quality supervision and inspection center, and the result shows that product meets the TB/T2821-1997 standard-required.
Claims (4)
1, a kind of copper-tin alloy conducting wire, copper-tin alloy conducting wire are tin content by weight percentage: 0.1～0.5%; Copper content: 99.5～99.1%.
2, a kind of production method of copper-tin alloy conducting wire according to claim 1 is characterized in that: Cu-CATH-1 is added electric induction furnace, and the limit is reinforced, fusing of marginization, and the copper liquid temperature in the control stove adds tin grain or tin slab at 1115～1130 ℃; The liquid metals of fusing flows into tundish continuously through chute, and the control tundish temperature is 1110～1135 ℃; Injecting rotary speed through depositing again is in the tyre type casting machine of 810～950rpm, at cooling water pressure is to obtain strand through the cooled and solidified moulding under 0.05～0.35Mpa condition, strand is sent in the milling train that the speed of service is 725～850rpm and is carried out continuous rolling, it is 740～810 ℃ that control advances to roll temperature, through rolling formation signal bronze line base, after cooling off, lubricate, clean, waxing, deliver to coil winding machine coiling rolling again by conveying.
3, production method according to claim 2 is characterized in that: employing quantitatively adds the tin device, utilizes timer intermittently to add tin slab or tin grain; Can be on chute top, tundish or directly add in the electric induction furnace.
4, production method according to claim 2 is characterized in that: at milling train and conveying inner control emulsion pressure is 0.09～0.18Mpa, and lubricated is 1～1.8% with oil emulsion concentration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100487475A CN100538917C (en) | 2005-12-26 | 2005-12-26 | A kind of production method of copper-tin alloy conducting wire |
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| CNB2005100487475A CN100538917C (en) | 2005-12-26 | 2005-12-26 | A kind of production method of copper-tin alloy conducting wire |
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| CN1811997A true CN1811997A (en) | 2006-08-02 |
| CN100538917C CN100538917C (en) | 2009-09-09 |
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| CN101763910B (en) * | 2008-12-24 | 2011-06-08 | 沈阳北恒日立铜材有限公司 | Low tin-copper alloy contact wire for electric railway and manufacturing method thereof |
| CN103157957A (en) * | 2012-03-05 | 2013-06-19 | 张连成 | Metal component blank manufacturing method |
| CN103236326A (en) * | 2013-04-24 | 2013-08-07 | 冯冬 | Production process of high-strength and high-conduction Cu-Sn (copper-tin) alloy wire |
| CN103255307A (en) * | 2012-02-17 | 2013-08-21 | 江西广信铜业有限公司 | Copper and silver alloy material used for novel motor commutator |
| CN103316914A (en) * | 2013-05-18 | 2013-09-25 | 张连成 | Method for manufacturing metal part blanks |
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| CN104051053A (en) * | 2014-06-13 | 2014-09-17 | 江阴市电工合金有限公司 | High-strength high-conductivity copper-tin alloy contact line and manufacturing method thereof |
| CN106140863A (en) * | 2016-08-04 | 2016-11-23 | 徐高磊 | A kind of production technology of copper tin alloy contact line |
| CN107330215A (en) * | 2017-07-11 | 2017-11-07 | 湖南大学 | A kind of method for calculating solid-solution material twin formation ability |
| CN107723504A (en) * | 2017-10-09 | 2018-02-23 | 中国西电集团公司 | A kind of contact line of bronze in use for electrified railroad in and its method for continuous production |
| CN109175908A (en) * | 2018-10-19 | 2019-01-11 | 东北大学 | The preparation method of fastener blank heavy-weight coil non junction high-strength aluminum alloy disk circle |
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| GB2123032B (en) * | 1982-06-28 | 1985-10-02 | Bicc Plc | Copper-base alloys |
| CN1257991C (en) * | 2002-09-25 | 2006-05-31 | 上海电缆研究所 | Method for manufacturing non-heat treatment type aluminum alloy wire of high conductivity and heat resistance |
| TWI291994B (en) * | 2002-11-13 | 2008-01-01 | Sumitomo Electric Industries | Copper alloy conductor and the manufacturing method |
| CN1288267C (en) * | 2004-10-25 | 2006-12-06 | 上海工程技术大学 | Cast aluminum alloys in high conductivity |
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| CN103255307A (en) * | 2012-02-17 | 2013-08-21 | 江西广信铜业有限公司 | Copper and silver alloy material used for novel motor commutator |
| CN103157957A (en) * | 2012-03-05 | 2013-06-19 | 张连成 | Metal component blank manufacturing method |
| CN103236326A (en) * | 2013-04-24 | 2013-08-07 | 冯冬 | Production process of high-strength and high-conduction Cu-Sn (copper-tin) alloy wire |
| CN103316914A (en) * | 2013-05-18 | 2013-09-25 | 张连成 | Method for manufacturing metal part blanks |
| CN103706664A (en) * | 2013-08-28 | 2014-04-09 | 新兴铸管（浙江）铜业有限公司 | Copper rod manufacturing method and milling machine suitable for copper rod manufacturing method and capable of scoring |
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| CN106140863A (en) * | 2016-08-04 | 2016-11-23 | 徐高磊 | A kind of production technology of copper tin alloy contact line |
| CN106140863B (en) * | 2016-08-04 | 2018-07-10 | 江苏鑫海铜业有限公司 | A kind of production technology of copper tin alloy contact line |
| CN107330215A (en) * | 2017-07-11 | 2017-11-07 | 湖南大学 | A kind of method for calculating solid-solution material twin formation ability |
| CN107723504A (en) * | 2017-10-09 | 2018-02-23 | 中国西电集团公司 | A kind of contact line of bronze in use for electrified railroad in and its method for continuous production |
| CN109175908A (en) * | 2018-10-19 | 2019-01-11 | 东北大学 | The preparation method of fastener blank heavy-weight coil non junction high-strength aluminum alloy disk circle |
| CN113085668A (en) * | 2021-04-27 | 2021-07-09 | 中铁建电气化局集团康远新材料有限公司 | Intelligent contact line for high-speed railway and preparation system and use monitoring method thereof |
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Assignee: Yunnan Copper Furukawa Electric Co., Ltd. Assignor: Yunnan copper copper products Co., Ltd.|Yunnan copper & Limited by Share Ltd Contract record no.: 2011530000040 Denomination of invention: Copper-tin alloy conducting wire and producing method thereof Granted publication date: 20090909 License type: Exclusive License Open date: 20060802 Record date: 20110706 |