CN106567022A - Rare earth copper alloy material and preparation method thereof - Google Patents
Rare earth copper alloy material and preparation method thereof Download PDFInfo
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- CN106567022A CN106567022A CN201611031300.1A CN201611031300A CN106567022A CN 106567022 A CN106567022 A CN 106567022A CN 201611031300 A CN201611031300 A CN 201611031300A CN 106567022 A CN106567022 A CN 106567022A
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- rare earth
- copper alloy
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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
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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
Abstract
The invention discloses a rare earth copper alloy material and a preparation method thereof. The preparation method comprises smelting, high-temperature solid solution treatment, controlled rolling and controlled cooling, cold rolling, 30-60% of cold rolling deformation for a strip obtained by controlled rolling at normal temperature, aging and final rolling. The rare earth copper alloy material is lower in raw material cost; and the preparation method is simple, satisfies actual working condition requirements in the factory production, and can smoothly prepare a new copper alloy material with high strength and high electric conductivity.
Description
Technical field
The present invention relates to acid bronze alloy and its preparing technical field, are related specifically to a kind of rare-earth copper alloy material and its system
Preparation Method.
Background technology
Copper and copper alloy have excellent physics, chemistry, mechanics and process performance characteristics, electric wire, electric meter,
It is used widely in the fields such as chemical industry, Aero-Space and machining.In recent years, because of its high intensity, high connductivity, high heat conduction and valency
The advantages of lattice are cheap, oneself progressively substitutes chromium platinum alloy and FeNi42 alloys to copper alloy, becomes the main of electric wiring lead frame
Material.But, the intensity and electric conductivity of copper alloy often mutually suppress, and how not only to have obtained high intensity but also have had the copper of high conductivity
Alloy material is the hot issue of current research.Additionally, China's copper alloy with high strength and high conductivity investigation of materials is started late, lead frame
Material category is few, yield poorly, and domestic senior blaster fuse frame material used is also more based on import.Finally, with China's " band one
The enforcement of road " Diplomatic Strategies, high speed railway construction is fast-developing, is also badly in need of that there is high strength ＆ high electric-conduction (to usually require that tension
Intensity should be greater than 550MPa, and conductivity is in more than 80%IACS) applied to high-speed railway touching net Cu alloy material.
The United States Patent (USP) of Patent No. 4672048, discloses a kind of copper alloy for lead frame, containing chromium, cobalt,
Lithium, nickel, stannum, titanium, silicon, P elements, intensity is up to 800MPa, and conductivity only has 69%IACS.Patent No. CN1250816
Patent discloses a kind of Cu-Cr-Zr-B-Nb-RE alloys, and its composition is complex, is mainly used in resistance welding electrode material.Specially
Profit number refers to a kind of high-conductivity copper base alloy for electrode of resistance welding for the patent of CN1285417, and its composition is Cu-Zr-
B-Nb-Mg-RE alloys, its electrical conductivity is 48MS/m, and hardness (HRB) is 65, and performance is not high.Patent No. CN1270434A it is special
The main Cu-Zr-Zn-Re high conductivity and strength alloys of alloy that profit is related to, but its Zn content is higher, is mainly applied to bullet train different
Step traction motor sliver and end ring.The patent of Patent No. CN1231343 is related to a kind of Cu-Cr-Y copper base alloy electrode materials
And preparation method thereof, belonging to alloy conductive material, it mainly prepares material using the method for powder metallurgy, relatively costly.In
The copper alloy contact wire CN1084577A patents of the inventions such as Tie Ke institutes of railway research institute of state Zhang Qiang, disclose one kind and contain
The copper alloy contact wire of 0.02%～0.08% chromium, 0.03%～0.13% stannum, conductivity is up to 80%～90%IACS, and strong
Degree only has 400MPa；The copper alloy contact wire CN1159486A patents of the inventions such as China Academy of Railways Sciences Mu Ensheng, it is open
The copper alloy contact wire containing 0.20%～0.45% magnesium, 0.05%～0.25% rare earth (lanthanum, cerium), conductivity 68%
IACS, and intensity is 450MPa～500MPa, softening temperature is 385 DEG C.
The content of the invention
Present invention aims to deficiency of the prior art, there is provided a kind of rare-earth copper alloy material and its preparation side
Method, to solve the above problems.
Technical problem solved by the invention can employ the following technical solutions to realize：
A kind of rare-earth copper alloy material and preparation method thereof, including
1) melting：Using cathode copper, cobalt, chromium, rare earth element, its addition sequence is electrolysed to add by weight percentage first
Copper, melting 20min～30min, be subsequently adding 0.02%～0.10% cobalt, 0.1%～0.5% chromium, 0.02%～
0.20% rare earth element, is cast after melting 1min～5min；
2) higher temperature solid solution：Above-mentioned cast alloys are fitted in heat-treatment furnace, 1～5 is incubated at 900 DEG C～1050 DEG C
Hour, treat that alloying element is fully dissolved in Copper substrate, then carry out Quenching Treatment；
3) controlled rolling and controlled cooling：With mill milling into band after above-mentioned cast alloys are incubated into 0.5～1 hour at 800 DEG C～950 DEG C
Material, concrete technology is as follows：First after rolling deformation 30%～50% in 900 DEG C～950 DEG C, relaxation 0.5～5min of air cooling；Subsequently
Rolling deformation 30%～50% again in 800 DEG C～900 DEG C, quick water quenching is to room temperature after isothermal 0.5min～5min；
4) cold roller and deformed process cold rolling, that the band obtained after controlled rolling is carried out at normal temperatures 30%～60%；
5) Ageing Treatment：Copper alloy band after will be cold drawn is air cooled to room after being incubated 2～10 hours at 400 DEG C～600 DEG C
Temperature；
6) finish to gauge：The rolling deformation that the copper alloy band after Ageing Treatment carries out 20%～50% is processed at normal temperatures.
Further, the rare earth element refers to cerium, lanthanum, iridium.
Further, the rare earth element can be added with single-element, it is also possible to mix two it is two or three kinds of and meanwhile add,
Two-by-two plus fashionable two kinds of rare earth elements by weight be 1: 1～1: 8；Weight ratio between the fashionable three kinds of rare earth elements of three Acanthopanan trifoliatus (L.) Merr.s exists
1: 1: 1～1: 1: 8；Total rare earth element content should be below 0.20%.
Compared with prior art, beneficial effects of the present invention are as follows：
The present invention can overcome above-mentioned patented technology defect, have the rare-earth copper alloy and its system of high intensity and high conductivity concurrently
Preparation Method.Using the method for the invention, cost of material is relatively low, and preparation method is relatively simple, meets plant produced actual condition
Require, can smoothly prepare the Novel copper alloy material of high strength ＆ high electric-conduction, it is high to copper alloy so as to meet modern industry
The requirement of the high performance such as strength high electrical conductivity.
Specific embodiment
Technological means, creation characteristic, reached purpose and effect to make present invention realization is easy to understand, with reference to
Specific embodiment, is expanded on further the present invention.
A kind of rare-earth copper alloy material of the present invention and preparation method thereof, including
1) melting：Using cathode copper, cobalt, chromium, rare earth element, its addition sequence is electrolysed to add by weight percentage first
Copper, melting 20min～30min, be subsequently adding 0.02%～0.10% cobalt, 0.1%～0.5% chromium, 0.02%～
0.20% rare earth element, remaining is copper and inevitable impurity element, is cast after melting 1min～5min.
2) higher temperature solid solution：Above-mentioned cast alloys are fitted in heat-treatment furnace, 1～5 is incubated at 900 DEG C～1050 DEG C
Hour, treat that alloying element is fully dissolved in Copper substrate, then carry out Quenching Treatment；
3) controlled rolling and controlled cooling：With mill milling into band after above-mentioned cast alloys are incubated into 0.5～1 hour at 800 DEG C～950 DEG C
Material, concrete technology is as follows：First after rolling deformation 30%～50% in 900 DEG C～950 DEG C, relaxation air cooling 0.5min～5min；
Subsequent rolling deformation 30%～50% again in 800 DEG C～900 DEG C, quick water quenching is to room temperature after isothermal 0.5min～5min.
4) cold roller and deformed process cold rolling, that the band obtained after controlled rolling is carried out at normal temperatures 30%～60%.
5) Ageing Treatment：Copper alloy band after will be cold drawn is air cooled to room after being incubated 2～10 hours at 400 DEG C～600 DEG C
Temperature.
6) finish to gauge：The rolling deformation that the copper alloy band after Ageing Treatment carries out 20%～50% is processed at normal temperatures.
Rare earth element refers to cerium, lanthanum, iridium.Rare earth element can be added with single-element, it is also possible to mix two two or three kinds of same
When add, two-by-two plus fashionable two kinds of rare earth elements by weight be 1: 1～1: 8；Between the fashionable three kinds of rare earth elements of three Acanthopanan trifoliatus (L.) Merr.s
Weight ratio is 1: 1: 1～1: 1: 8；Total rare earth element content should be below 0.20%.Adjustment rare earth element, chromium, cobalt are in alloy
In shared ratio, the alloy that varying strength and conductivity combine can be obtained, with meet it is actually used in different demands.
Described Cu alloy material belongs to a kind of microalloying rare-earth copper alloy, consists predominantly of copper, chromium, cobalt and rare earth
Element, its rare earth elements include cerium, lanthanum, iridium.Rare earth element can be added with single-element, it is also possible to mix two two or three kinds of
Add simultaneously.The introducing of chromium is mainly it and cuprio bulk conductivity is had some improvement, while strong with certain solid solution
Change acts on and improves softening temperature of copper etc..Chromium is remarkably improved intensity, hardness and the wearability of material, if but containing chromium
Amount is too high to cause plasticity to reduce, therefore the content for working out chromium in the alloy is 0.1%～0.5%.
The introducing of trace cobalt mainly considers its significant ageing strengthening having, but cobalt content is too high will be significantly
Low-alloyed electric conductivity drops, and the too low strengthening effect that it has of content is not notable.The addition of rare earth is removed and changes this alloy
Manufacturability, beneficial to refine, degasification and Microalloying Effect outside, the electric conductivity of alloy, intensity, high temperature resistance can also be significantly improved soft
The performance such as the property changed and anti-wear performance.One key character of the alloy is the high-strength and high property taken into account led that it has, together
When also there is excellent heat-resisting quantity and polishing machine etc..
Described alloy can make the synthesis of alloy by techniques such as melting, solution treatment, controlled rolling and controlled cooling, cold rolling, timeliness
Performance is significantly improved, specific as follows：Up to 550MPa～650MPa, electrical conductivity is maintained at 85%～95%IACS to intensity, softens
Temperature more than 560 DEG C, at 300 DEG C anneal 2 little rear intensity reduction rate be less than 10%, elongation percentage more than 5%, and also
With higher anti-wear performance.Its preparation method is simple, and cost of material is low, can meet modern industry high to copper alloy high intensity
The requirement of the high performance such as electric conductivity.
The ultimate principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and description this
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes
Change and improvement is both fallen within scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (3)
1. a kind of rare-earth copper alloy material and preparation method thereof, it is characterised in that：Including
1) melting：Using cathode copper, cobalt, chromium, rare earth element, its addition sequence is to add cathode copper by weight percentage first,
Melting 20min～30min, be subsequently adding 0.02%～0.10% cobalt, 0.1%～0.5% chromium, 0.02%～0.20%
Rare earth element, is cast after melting 1min～5min；
2) higher temperature solid solution：Above-mentioned cast alloys are fitted in heat-treatment furnace, insulation 1～5 is little at 900 DEG C～1050 DEG C
When, treat that alloying element is fully dissolved in Copper substrate, then carry out Quenching Treatment；
3) controlled rolling and controlled cooling：With mill milling into band after above-mentioned cast alloys are incubated into 0.5～1 hour at 800 DEG C～950 DEG C,
Concrete technology is as follows：First after rolling deformation 30%～50% in 900 DEG C～950 DEG C, relaxation air cooling 0.5min～5min；Subsequently
Rolling deformation 30%～50% again in 800 DEG C～900 DEG C, quick water quenching is to room temperature after isothermal 0.5min～5min；
4) cold roller and deformed process cold rolling, that the band obtained after controlled rolling is carried out at normal temperatures 30%～60%；
5) Ageing Treatment：Copper alloy band after will be cold drawn is air cooled to room temperature after being incubated 2～10 hours at 400 DEG C～600 DEG C；
6) finish to gauge：The rolling deformation that the copper alloy band after Ageing Treatment carries out 20%～50% is processed at normal temperatures.
2. rare-earth copper alloy material according to claim 1 and preparation method thereof, it is characterised in that：The rare earth element refers to
Cerium, lanthanum, iridium.
3. rare-earth copper alloy material according to claim 1 and preparation method thereof, it is characterised in that：The rare earth element can
To be added with single-element, it is also possible to mix two it is two or three kinds of and meanwhile add, two-by-two plus fashionable two kinds of rare earth elements by weight
For 1: 1～1: 8；Weight ratio between the fashionable three kinds of rare earth elements of three Acanthopanan trifoliatus (L.) Merr.s is 1: 1: 1～1: 1: 8；Total rare earth element content
Should be below 0.20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611031300.1A CN106567022A (en) | 2016-11-18 | 2016-11-18 | Rare earth copper alloy material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611031300.1A CN106567022A (en) | 2016-11-18 | 2016-11-18 | Rare earth copper alloy material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109182795A (en) * | 2018-09-13 | 2019-01-11 | 北京科技大学 | A kind of preparation method of high-strength highly-conductive Cu-RE nisiloy evanohm |
| CN113186421A (en) * | 2021-05-04 | 2021-07-30 | 宁波华成阀门有限公司 | Corrosion-resistant copper alloy and valve preparation method |
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| CN1730690A (en) * | 2005-08-08 | 2006-02-08 | 河南科技大学 | Rare earth copper alloy and its preparation method |
| CN101392336A (en) * | 2008-11-10 | 2009-03-25 | 河南科技大学 | Rare earth-containing copper base alloy material and preparation method thereof |
| CN102912178A (en) * | 2012-09-29 | 2013-02-06 | 河南科技大学 | High-strength and high-conductivity rare-earth copper alloy and preparation method thereof |
| CN104451243A (en) * | 2014-12-01 | 2015-03-25 | 绍兴市力博电气有限公司 | Conductive material for high-speed rail traction motor and production method of conductive material |
| CN104674057A (en) * | 2013-11-28 | 2015-06-03 | 青岛新力通工业有限责任公司 | Novel rare-earth chromium-cobalt-copper alloy material |
| CN105970016A (en) * | 2016-05-06 | 2016-09-28 | 河南理工大学 | High-conductivity bend-resistant copper alloy wire for transmission and preparation method thereof |
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2016
- 2016-11-18 CN CN201611031300.1A patent/CN106567022A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1730690A (en) * | 2005-08-08 | 2006-02-08 | 河南科技大学 | Rare earth copper alloy and its preparation method |
| CN101392336A (en) * | 2008-11-10 | 2009-03-25 | 河南科技大学 | Rare earth-containing copper base alloy material and preparation method thereof |
| CN102912178A (en) * | 2012-09-29 | 2013-02-06 | 河南科技大学 | High-strength and high-conductivity rare-earth copper alloy and preparation method thereof |
| CN104674057A (en) * | 2013-11-28 | 2015-06-03 | 青岛新力通工业有限责任公司 | Novel rare-earth chromium-cobalt-copper alloy material |
| CN104451243A (en) * | 2014-12-01 | 2015-03-25 | 绍兴市力博电气有限公司 | Conductive material for high-speed rail traction motor and production method of conductive material |
| CN105970016A (en) * | 2016-05-06 | 2016-09-28 | 河南理工大学 | High-conductivity bend-resistant copper alloy wire for transmission and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109182795A (en) * | 2018-09-13 | 2019-01-11 | 北京科技大学 | A kind of preparation method of high-strength highly-conductive Cu-RE nisiloy evanohm |
| CN109182795B (en) * | 2018-09-13 | 2020-06-05 | 北京科技大学 | Preparation method of high-strength high-conductivity rare earth copper-nickel-silicon-chromium alloy |
| CN113186421A (en) * | 2021-05-04 | 2021-07-30 | 宁波华成阀门有限公司 | Corrosion-resistant copper alloy and valve preparation method |
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Application publication date: 20170419 |