CN101812612B - Nickel-copper alloy rod or profile for high-speed electrified railway in CY state - Google Patents
Nickel-copper alloy rod or profile for high-speed electrified railway in CY state Download PDFInfo
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- CN101812612B CN101812612B CN201010170649XA CN201010170649A CN101812612B CN 101812612 B CN101812612 B CN 101812612B CN 201010170649X A CN201010170649X A CN 201010170649XA CN 201010170649 A CN201010170649 A CN 201010170649A CN 101812612 B CN101812612 B CN 101812612B
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Abstract
The invention relates to a nickel-copper alloy rod or a profile for a high-speed electrified railway in the CY state, and the process thereof comprises casting, heating, extrusion-quenching, drawing, bright annealing, finishing and warehousing; the nickel-copper alloy rod or the profile is manufactured to be used for a positioning clamp, and the manufacturing method has the following steps that: extrusion and annealing steps in a traditional process are combined into one process, acid cleaning is omitted, so as to reduce the procedures of the process and the production cost; the mechanical property Rm of the rod or the profile processed and manufactured by the technical scheme is more than or equal to 380MPa, the Vickers hardness is HV80 to 150, A is more than or equal to 10 percent, HB is more than or equal to 180, and the need of the high-speed railway with the speed of 350km/h can be satisfied; and the material tissue of the nickel-copper alloy rod or the profile processed and manufactured by the technical scheme is in the CY state, and is more suitable for follow-up processing.
Description
Technical field
The present invention relates to a kind of non-ferrous metal processing technology, particularly a kind of CY state high-speed electric railway contact netting twine registration clamp and annex nisiloy copper alloy bar or section bar.
Background technology
The nisiloy copper alloy belongs to the high-strength abrasion-proof bronze owing to have high strength, good solidity to corrosion, wear resistance, plasticity, proof stress relaxation property and hot cold-forming property, is mainly used in fields such as ship structural component, electric railway device.In recent years along with the growing continuously and fast of China's economy, the fast development of industries such as particularly dynamo-electric manufacturing, boats and ships, electric railway makes the steady-state growth year by year of nisiloy bronze material demand.Especially the integral body of electric railway use is hung suspension wire folder and registration clamp nisiloy bronze material, owing to reasons such as its cost height, complex process, technology and specification of quality height, procurement cycle are long, need a large amount of imports, for developing domestic economy and technology, adopt home made materials to substitute import, have very significant meaning.
Publication number: CN101289716A discloses a kind of complete processing patent of nisiloy bronze alloy material, and bar complete processing wherein adopts: founding, heating, extruding, stretching, annealing, pickling, stretching, clean annealing, finishing, warehouse-in; It provides a kind of M state nisiloy bronze alloy material (annealing (anneal)) state, become the contact system wire clamp of electric railway use again through following process, but its performance only can reach about HB150: and have technical process length, the also more high weak point of cost, the present invention provides following technical scheme in order to address the above problem.
Summary of the invention
The invention provides the complete processing of new a kind of CY state high-speed electric railway with nisiloy copper alloy bar or section bar, it is the copper alloy of base that the nisiloy copper alloy bar wherein or the chemical ingredients of section bar are still with Cu-Ni-Si, is that main alloy and manganese, iron are that trace element and unavoidable impurities constitute by copper, nickel, silicon specifically.Copper: have high conduction, heat conductivility and good solidity to corrosion, weight ratio is maximum in the nisiloy copper alloy, is surplus; Nickel: play the corrosion stability and the toughness that improve alloy, Composition Control is in 1.6～3.4% scopes; Silicon: can improve alloy mechanical property, anti-corrosion, wear-resisting and welding property by adding Si, and can hot cold conditions press working etc. performance, but too high meeting seriously produces plasticity acutely to descend, cause and to carry out press working, cross and low then fall flat, so component concentration is controlled in 0.15～1.1% scope; Manganese: belong to the high-meltiing alloy element, the adding of Mn can improve copper alloy intensity and hardness by solution strengthening, and it combines the Mn that generates the quite high hexagonal structure of hardness with silicon
5Si
3Thereby, improve alloy wear-resisting.But too high alloy property is brought negative impact, crosses and does not lowly then reach desirable requirement, thus component concentration be strict controlled in≤below 1.0%; Iron: can improve the mechanical property and the processing performance of alloy, so component concentration be strict controlled in≤below 0.6%; And unavoidable impurities is strict controlled in≤below 0.3%, constitutes jointly.
This nisiloy copper alloy bar/section bar can be suitable for the high-speed electric railway contact netting twine locating clip nisiloy copper alloy rod/section bar of different occasions according to the use processing and manufacturing of different occasions in the electric railway, and its complete processing adopts: founding, heating, extruding-quenching, stretching, clean annealing, finishing, warehouse-in; Wherein:
I, extruding-quenching: adopt extrusion machine that the ingot blank that heats is carried out the water seal extrusion processing and become blank, being about to the extruder mold outlet links to each other with a tank, the blank of extruding is directly entered in the tank to be cooled off fast, can prevent the blank surface oxidation, and the crystal grain of refinement control blank alloy structure; Extrusion ratio: 26～45; Water temperature in the tank≤50 ℃;
II, stretching: the blank after adopting drawing machine to extruding-quenching according to model specification carries out once or secondary stretch is processed: the stretch process rate that one-off drawing is machined to trimmed size is: 38-45%; The stretch process rate first time that secondary stretch is machined to trimmed size is: 38-45%.The stretch process rate is for the second time: 25～40%;
Technologies such as remaining founding, heating, clean annealing, finishing, warehouse-in are the existing complete processing of copper processing; Nisiloy copper alloy bar or section bar are made into high-speed electric railway contact netting twine registration clamp and employed nisiloy copper alloy bar of annex or section bar through following process again.
Beneficial effect of the present invention:
1) employing is made into nisiloy copper alloy bar or the section bar that high-speed electric railway contact netting twine is used with registration clamp and annex thereof, it mainly is that extruding in the former processing process and annealing are merged into a complete processing, save pickling, thereby reduced processing process, reduced production cost;
2) adopt the bar or the section bar of the technical program processing and fabricating, mechanical property reaches: Rm 〉=380MPa, and vickers hardness hv 80～150, A 〉=10%, the demand of 350 kilometers/hour high-speed railways of speed can be satisfied in HB 〉=180;
3) adopt the nisiloy copper alloy bar of the technical program processing and fabricating or profile material to be organized as CY attitude (the non-ferrous metal converted products state of the back cold rolling (cold working hardening) of quenching), be more suitable for following process; This material has satisfactory electrical conductivity, rub resistance, also has high-tensile, high extension strength simultaneously; High-speed electric railway rail top is set up in aerial contact netting twine and annex thereof and is undertaking and guarantee that train does not derail, the important task of safe and stable operation.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is technical process of the present invention.
Embodiment:
The present invention is further described below in conjunction with embodiment.
Embodiment 1:
The CuNi2Si alloy profile of processing and fabricating CY state φ 24X6000mm, its technical process is adopted:
Founding: nisiloy Cu alloy material component is the difference weighing and burden by weight: nickel 1.6～3.4%, silicon 0.15～1.1% and manganese≤1.0%, iron≤0.6% and unavoidable impurities≤0.3%, surplus are that copper constitutes jointly; Weigh respectively and successively drop into smelting furnace, founding becomes ingot blank;
Heating: adopt induction heater ingot blank to be heated Heating temperature: 850～900 ℃, heat-up time: 3～6min;
Extruding-quenching: adopt extrusion machine that the ingot blank that heats is carried out the water seal extrusion processing and become blank, the mould outlet that is about to extrusion machine links to each other with a tank, the blank of extruding is directly entered in the tank to be cooled off fast, can prevent the blank surface oxidation, and the crystal grain of refinement control blank alloy structure, extrusion ratio: 26～45; Water temperature in the tank≤50 ℃;
Stretch: the blank after adopting drawing machine to extruding carries out one-off drawing, stretch process rate: 38-45%;
Clean annealing: adopt annealing furnace finished section bar to be carried out the finished product clean annealing, annealing temperature: 650 ℃～700 ℃, annealing time: 1～3h;
Finishing: the finished section bar after the annealing is carried out artificial or mechanical finishing;
Warehouse-in: according to the contract require to being packaged into the storehouse after the finished section bar passed examination after the finishing.
Embodiment 2:
The CuNi2Si alloy bar material of processing and fabricating CY state φ 24X3000mm, its technical process is adopted:
Founding: nisiloy Cu alloy material component is the difference weighing and burden by weight: nickel 1.6～3.4%, silicon 0.15～1.1% and manganese≤1.0%, iron≤0.6% and unavoidable impurities≤0.3%, surplus are copper, weigh respectively and successively drop into smelting furnace, founding becomes ingot blank;
Heating: adopt induction heater ingot blank to be heated Heating temperature: 850～900 ℃, heat-up time: 3～6min;
Extruding-quenching: adopt extrusion machine that the ingot blank that heats is carried out the water seal extrusion processing and become blank, the mould outlet that is about to extrusion machine links to each other with a tank, the blank of extruding is directly entered in the tank to be cooled off fast, can prevent the blank surface oxidation, and the crystal grain of refinement control blank tissue, extrusion ratio: 26～45; Water temperature in the tank :≤50 ℃;
Stretch: the blank after adopting drawing machine to extruding carries out secondary stretch, stretch process rate: 38-45% for the first time, and stretch process is to the finished product bar for the second time, stretch process rate: 25～40%;
Clean annealing: adopt annealing furnace the finished product bar to be carried out the finished product clean annealing, annealing temperature: 650 ℃～700 ℃, annealing time: 1～3h;
Finishing: the finished product bar after the annealing is carried out artificial or mechanical finishing;
Warehouse-in: according to the contract require to being packaged into the storehouse after the finished product bar passed examination after the finishing.
Claims (1)
1. a CY state high-speed electric railway is with nisiloy copper alloy bar or section bar, and its complete processing adopts: founding, heating, extruding-quenching, stretching, clean annealing, finishing, warehouse-in; It is characterized in that:
Extruding-quenching wherein, drawing process adopt:
Extruding-quenching: adopt extrusion machine that the ingot blank that heats is carried out the water seal extrusion processing and become blank, being about to the extruder mold outlet links to each other with a tank, the blank of extruding is directly entered in the tank to be cooled off fast, can prevent the blank surface oxidation, and the crystal grain of refinement control blank alloy structure; Extrusion ratio: 26～45; Water temperature in the tank≤50 ℃;
Stretch: the blank after adopting drawing machine to extruding-quenching according to model specification carries out once or secondary stretch processing; The stretch process rate that one-off drawing is machined to trimmed size is: 38-45%; The stretch process rate first time that secondary stretch is machined to trimmed size is: 38-45%, for the second time the stretch process rate is: 25～40%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010170649XA CN101812612B (en) | 2010-05-13 | 2010-05-13 | Nickel-copper alloy rod or profile for high-speed electrified railway in CY state |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010170649XA CN101812612B (en) | 2010-05-13 | 2010-05-13 | Nickel-copper alloy rod or profile for high-speed electrified railway in CY state |
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| CN101812612A CN101812612A (en) | 2010-08-25 |
| CN101812612B true CN101812612B (en) | 2011-10-05 |
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| CN105506524A (en) * | 2015-12-03 | 2016-04-20 | 中铝洛阳铜业有限公司 | Aluminum iron nickel bronze extruded bar preparation process |
| CN114107850B (en) * | 2021-11-24 | 2022-06-03 | 中国兵器科学研究院宁波分院 | Preparation method of copper bush |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86102885A (en) * | 1985-04-26 | 1986-11-19 | 奥林公司 | Multipurpose copper alloy with medium conductivity and high strength and production method thereof |
| CN101250644A (en) * | 2008-02-28 | 2008-08-27 | 上海理工大学 | Copper-base alloy capable of being used for lead frame material and manufacture method thereof |
| CN101289716A (en) * | 2008-05-15 | 2008-10-22 | 中铝洛阳铜业有限公司 | Nisiloy bronze alloy material and processing technique thereof |
-
2010
- 2010-05-13 CN CN201010170649XA patent/CN101812612B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86102885A (en) * | 1985-04-26 | 1986-11-19 | 奥林公司 | Multipurpose copper alloy with medium conductivity and high strength and production method thereof |
| CN101250644A (en) * | 2008-02-28 | 2008-08-27 | 上海理工大学 | Copper-base alloy capable of being used for lead frame material and manufacture method thereof |
| CN101289716A (en) * | 2008-05-15 | 2008-10-22 | 中铝洛阳铜业有限公司 | Nisiloy bronze alloy material and processing technique thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张君等.水封挤压铜制品.《重型机械》.1998,(第6期),38-41. * |
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Effective date of registration: 20170810 Address after: 471039 No. 50, Jianxi, Luoyang District, Henan, Jianshe Road Patentee after: China Aluminum Luoyang Copper Processing Co., Ltd. Address before: 471039 No. 50, Jianxi, Luoyang District, Henan, Jianshe Road Patentee before: Zhonglu Luoyang Copper Industry Co., Ltd. |