CN100523236C - Special copper alloy and manufacturing method thereof - Google Patents
Special copper alloy and manufacturing method thereof Download PDFInfo
- Publication number
- CN100523236C CN100523236C CNB200710066484XA CN200710066484A CN100523236C CN 100523236 C CN100523236 C CN 100523236C CN B200710066484X A CNB200710066484X A CN B200710066484XA CN 200710066484 A CN200710066484 A CN 200710066484A CN 100523236 C CN100523236 C CN 100523236C
- Authority
- CN
- China
- Prior art keywords
- alloy
- powder
- copper
- vacuum
- under
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The invention relates to a novel high-strength high-conductivity copper-based alloy and preparation method thereof, which belongs to copper-based electrical material. The chemical compositions of the weight percentage of the copper-based electrical alloy are 0.01-5.0Eu, 0.01-5.0Gd, 0.01-5.0Er, 0.01-3.0C and Cu which holds the weight percentage. The process for preparing the copper-based alloy is to allocate Cu, Eu, Gd, and Er (mixed rare earth element) according to the composition proportion of the alloy design, melt the mixture in the vacuum medium-frequency and fuse the mixture in the powder-making device, fast solidify the inert gas to atomize, and then CuEuGdEr alloy powder is produced. The powder is mixed with C powder by mechanical alloying, and then the mixed powder is processed by the processing technique of isostatic cool pressing formation, sinter, extrusion and the like to achieve the production of pipe, rod or sheet. The alloy material is characterized by good heat and electrical conductivity, large strength of room temperature, high resoftening temperature and high conductive rate, which can be used as conducting bar, resistance welding electrode, blasting fuse frame, conducting bridge, commutator and the like in the industries of electric power, electrotechnology, electronics and electromechannics.
Description
Technical field
The present invention relates to copper base electrical alloy material, particularly relate to a kind of novel high-strength combarloy base Alloy And Preparation Method.
Background technology
The high strength and high conductivity copper alloy is meant the alloy of the high-temperature behavior of taking into account high intensity and excellence when having good conduction, heat conductivility again, and its major requirement is under the prerequisite of not losing electric conductivity and thermal conductivity, and the intensity of alloy is improved.Copper-based alloy material also can be used for substituting deleterious berylliumbronze, phosphor bronze etc. and makes rly. bearing and high-low pressure interconnecting devices etc. mainly as materials such as the resistance welding electrode in the industries such as automobile, motorcycle, electrician, electronics, electric power, lead frame, conducting bridges.At present, this class alloy mainly is divided into four classes by its chemical ingredients, intensity and electric conductivity both at home and abroad:
(1) high strength and high conductivity copper alloy, tensile strength 500～600MPa, electric conductivity 80～90%IACS, as Cu-Cr-Zr, Cu-Ag-Cr, Cu-Cr or Zr alloy, Cu/Al
2O
3, Cu/RE
2O
3Deng.This class alloy has higher mechanical property and conduction, heat conductivility;
(2) strong high-conductivity copper alloy in, tensile strength 350～550MPa, electric conductivity 70～98%IACS, as Cu-Ag, CuCd, Cu-Cr, Cu-Zr etc.;
(3) high-strength middle conductive copper alloy, tensile strength 700～800MPa, electric conductivity 40～50%IACS.As Cu-Be, Cu-Ni-Si, Cu-Ni-Co etc.;
(4) the low by force conductive copper alloy of superelevation, tensile strength 〉=900MPa, electric conductivity=10～30%IACS, as Cu-Ti, Cu-Be Co etc.
In recent years, along with the development of high-strength highly-conductive electric material related application industry, traditional copper base electrical material is had higher requirement, for example: keep high conduction, thermal conductivity in room temperature and high temperature, the hardness height has good non-deformability and processing characteristics etc.For many years, the research of this field novel material mainly concentrates on copper-transition element, as: Cu-Zr, Cu-Cr, Cu-Ni-Ti, Cu-Be-Co etc.Technology of preparing is the alloy casting method.The reinforcement means are working hardening, solution strengthening or ageing strengthening etc.Though these methods make moderate progress to the performance and the use range of copper-based alloy material, and heat resistances such as material electric conductivity, hot strength, hot hardness and softening temperature can almost not had obvious improvement.
Summary of the invention:
The objective of the invention is to invent a kind of copper base electrical alloy material, particularly a kind of special copper alloy material.
The weight percent of Cu alloy material Chemical Composition of the present invention is: 0.01～5.0Eu, and 0.01～5.0Gd, 0.01～5.0Er, 0.01～3.0C, surplus is Cu.
The special copper alloy preparation methods comprises following process steps in regular turn:
(1) in vacuum tightness〉1 * 10
-2Cu, the Eu that melting configures in proportion in the vacuum intermediate frequency furnace of Pa, Gd, Er alloy;
(2) in vacuum tightness〉1 * 10
-2Under the vacuum condition of Pa, with rate of cooling 10
4～10
5K/S is atomized into powder with the alloy liquid of step (1) gained;
(3) in mechanical alloying high-energy ball milling equipment, the CuEuGdEr powder is mixed 24 hours with Graphite Powder 99 (C);
(4) under 100～200MPa pressure, the resulting powdered alloy of step (3) is carried out press forming;
(5) under 800～900 ℃ of temperature and vacuum tightness 1 * 10
-2Sintering step under the Pa vacuum (3) gained alloy pressed compact;
(6) again the extruding of CuEuGdErC alloy pig is tubing, bar or sheet material, extrusion ratio〉20:1, extrusion temperature is 700～850 ℃;
(7) extruded material through the processing of operations such as drawing, rolling, thermal treatment, is prepared into work in-process such as tubing, bar or sheet material again; Drawing, rolling reduction are 30～50%, and thermal treatment temp is 600～800 ℃;
(8) according to service requirements, carry out the precision work of tubing, bar or sheet material again, finally be prepared into CuEuGdErC high strength and high conductivity alloy product.
The weight percent Chemical Composition of copper base electrical alloy is: 0.01%～5.0%Eu, and 0.01%～5.0%Gd, 0.01%～5.0%Er, 0.01%～3.0%C, surplus is Cu.Its preparation method is: with copper, europium (Eu), gadolinium (Gd), erbium (Er) (mishmetal unit rope) prepare by the alloy designs component proportions, frequently melt in melting and the powder manufacturing apparatus in a vacuum,, be prepared into the CuEuGdEr powdered alloy by the rapid solidification inert gas atomizer; Powder carries out mechanical alloying with Graphite Powder 99 (C) again to be mixed, and mixed powder passes through processes such as cold isostatic compaction, sintering, extruding again, obtains finished products such as tubing, bar or sheet material.
The inventor is on the basis of being engaged in electrical alloy and rare earth element applied research and exploitation for a long time, select to mix heavy rare first rope (Eu, Gd, Er) of as additive, find that rare earth element has promoted Cu alloy organizing thinning process effectively, form compound and rare earth oxide between heterogeneous metal, and be distributed in equably on the intracrystalline and crystal boundary of alloy, obviously improve the weave construction of material, improved mechanical property and hot strength, the softening temperature etc. of material; Particularly add graphite (C) solid lubricant and in alloy, can obviously play self-lubricating function, thus the wear resisting property of raising alloy; Yet, less to the plasticity and the resistivity effects of alloy material.
Therefore, optimization that utilize to add advanced powder metallurgy technology such as mixed rare-earth elements, vacuum rapid solidification flour, compacting sintering and extrusion processing is integrated, for the processing of novel copper-based electrical alloy material and goods provides new way.
Alloy material of the present invention has conduction, thermal conductivity is good, room temperature strength is big, characteristics such as softening temperature height and electric conductivity height can be used as the materials such as conducting rod, resistance welding electrode, lead frame, conducting bridge and reverser in the industries such as electric power, electrician, electronics, electromechanics.
Embodiment
Special copper alloy material of the present invention, its Chemical Composition (weight %) is: 0.01～5.0Eu, 0.01～5.0Gd, 0.01～5.0Er, 0.01～3.0C, surplus is Cu.
The special copper alloy preparation methods is characterized in that comprising in regular turn following process steps:
(1) (vacuum tightness:〉1 * 10 in the stove frequently in a vacuum
-2Pa) Cu, the Eu, Gd, the Er alloy that configure in proportion of melting;
(2) (vacuum tightness:〉1 * 10 under vacuum condition
-2Pa) with rate of cooling 10
4～10
5K/S is atomized into powder with the alloy liquid of step (1) gained;
(3) in mechanical alloying high-energy ball milling equipment, the CuEuGdEr powder is mixed 24 hours with Graphite Powder 99 (C);
(4) under 100～200MPa pressure, the resulting powdered alloy of step (3) is carried out press forming;
(5) vacuum sintering (vacuum tightness:〉1 * 10 under 800～900 ℃ of temperature
-2Pa) step (3) gained alloy pressed compact;
(6) again the extruding of CuEuGdErC alloy pig is tubing, bar or sheet material, extrusion ratio〉20:1, extrusion temperature is 700～850 ℃.
(7) extruded material through the processing of operations such as drawing, rolling, thermal treatment, is prepared into work in-process such as tubing, bar or sheet material again; Drawing, rolling reduction are 30～50%, and thermal treatment temp is 600～800 ℃.
(8) according to service requirements, carry out the precision work of tubing, bar or sheet material again, finally be prepared into CuEuGdErC high strength and high conductivity alloy product.
The concrete enforcement of copper europium gadolinium erbium graphite alloy material of the present invention classified as: the physics of material, mechanical property and softening temperature are as shown in table 1.
The technical performance index of table 1.CuEuGdEr alloy
Claims (2)
1. Cu alloy material is characterized in that the weight percent of its Chemical Composition is: 0.01%～5.0%Eu, and 0.01%～5.0%Gd, 0.01%～5.0%Er, 0.01%～3.0%C, surplus is Cu.
2. the preparation method of Cu alloy material is characterized in that comprising in regular turn following process steps:
(1) weight percent by its Chemical Composition is: 0.01%～5.0%Eu, and 0.01%～5.0%Gd, 0.01%～5.0%Er, 0.01%～3.0%C, surplus is Cu, alloyage,
(2) in vacuum tightness〉1 * 10
-2Cu, the Eu that melting configures in proportion in the vacuum intermediate frequency furnace of Pa, Gd, Er alloy;
(3) in vacuum tightness〉1 * 10
-2Under the vacuum condition of Pa, with rate of cooling 10
4～10
5K/s is atomized into powder with the alloy liquid of step (2) gained;
(4) in mechanical alloying high-energy ball milling equipment, the CuEuGdEr powder is mixed 24 hours with Graphite Powder 99 (C);
(5) under 100～200MPa pressure, the resulting powdered alloy of step (4) is carried out press forming;
(6) under 800～900 ℃ of temperature and vacuum tightness 1 * 10
-2Sintering step under the Pa vacuum (5) gained alloy pressed compact;
(7) again the extruding of CuEuGdErC alloy pig is tubing, bar or sheet material, extrusion ratio〉20:1, extrusion temperature is 700～850 ℃;
(8) extruded material through drawing, rolling, heat treatment step processing, is prepared into tubing, bar or sheet material work in-process again; Drawing, rolling reduction are 30～50%, and thermal treatment temp is 600～800 ℃;
(9) according to service requirements, carry out the precision work of tubing, bar or sheet material again, finally be prepared into CuEuGdErC high strength and high conductivity alloy product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710066484XA CN100523236C (en) | 2007-12-24 | 2007-12-24 | Special copper alloy and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710066484XA CN100523236C (en) | 2007-12-24 | 2007-12-24 | Special copper alloy and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101186983A CN101186983A (en) | 2008-05-28 |
| CN100523236C true CN100523236C (en) | 2009-08-05 |
Family
ID=39479587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200710066484XA Expired - Fee Related CN100523236C (en) | 2007-12-24 | 2007-12-24 | Special copper alloy and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100523236C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102888528B (en) * | 2012-09-21 | 2014-05-28 | 厦门火炬特种金属材料有限公司 | Graphite-containing packfong alloy easy for cutting and preparation technology thereof |
| CN103074554A (en) * | 2012-12-27 | 2013-05-01 | 昆明贵金属研究所 | Novel gold-silver-copper alloy composite wire material and preparation method thereof |
| CN103773989B (en) * | 2014-03-04 | 2015-11-04 | 南京信息工程大学 | The conductive copper material of a kind of ferromagnetic elements gadolinium modification and preparation method |
| CN105369051A (en) * | 2015-11-09 | 2016-03-02 | 昆明贵金属研究所 | Novel copper alloy and preparation method thereof |
| CN109722561B (en) * | 2019-01-21 | 2020-10-27 | 中南大学 | High-performance Cu-Cr alloy and preparation method thereof |
| CN111910102B (en) * | 2020-07-14 | 2021-08-03 | 中南大学 | Copper-silver composite material wire and preparation method thereof |
| CN115044794B (en) * | 2022-06-08 | 2022-12-20 | 合肥工业大学 | Cu- (Y) with excellent performance 2 O 3 -HfO 2 ) Alloy and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080779A (en) * | 1993-05-05 | 1994-01-12 | 北京有色金属研究总院 | The copper alloy that the very thin multi-core low-temp superconducting wire band is used |
| CN1425196A (en) * | 1999-11-24 | 2003-06-18 | 霍尼韦尔国际公司 | Conductive interconnections |
| CN1488770A (en) * | 2003-09-01 | 2004-04-14 | 昆明贵金属研究所 | High-strength, High-conductivity copper-base alloy material and preparing method thereof |
-
2007
- 2007-12-24 CN CNB200710066484XA patent/CN100523236C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080779A (en) * | 1993-05-05 | 1994-01-12 | 北京有色金属研究总院 | The copper alloy that the very thin multi-core low-temp superconducting wire band is used |
| CN1425196A (en) * | 1999-11-24 | 2003-06-18 | 霍尼韦尔国际公司 | Conductive interconnections |
| CN1488770A (en) * | 2003-09-01 | 2004-04-14 | 昆明贵金属研究所 | High-strength, High-conductivity copper-base alloy material and preparing method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 微量稀土对超导稳定化基体铜材的性能和组织的影响. 布凤山，刘古田，张红，华崇远.中国稀土学报，第14卷第2期. 1996 |
| 微量稀土对超导稳定化基体铜材的性能和组织的影响. 布凤山，刘古田，张红，华崇远.中国稀土学报，第14卷第2期. 1996 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101186983A (en) | 2008-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100523236C (en) | Special copper alloy and manufacturing method thereof | |
| CN103352136B (en) | Copper-base contact material and manufacture craft | |
| CN102268583B (en) | Method for preparing silver tin oxide electrical contact material | |
| CN102242302A (en) | Preparation method of layered ternary ceramic reinforced copper composite material | |
| CN103695682B (en) | A kind of silver oxide contact material and preparation method and products thereof with strengthening substrate performance additive | |
| Ćosović et al. | Comparison of properties of silver-metal oxide electrical contact materials | |
| CN105132736A (en) | Dispersed copper composite material and preparation method thereof | |
| CN102660696A (en) | Dispersion strengthening copper-based composite material and preparation method thereof | |
| CN101293317B (en) | Preparation technique for high-strength high conductivity integral dispersion copper spot-welding electrode | |
| CN103469007B (en) | Senior terminal connector copper alloy and its preparation method and application | |
| CN101418393B (en) | Novel method for preparing AgCuV alloy material | |
| CN105177346B (en) | A kind of tungsten copper contact material and preparation method thereof | |
| CN102808099B (en) | Preparation method for Al2O3 dispersion-strengthened Cu/Cr composite material | |
| CN103667767B (en) | Preparation method of a kind of silver-colored nickel contact material with enhancing substrate performance additive and products thereof | |
| CN101121201A (en) | Tungsten copper powder high compactedness material and method for preparing the material using heat extrusion | |
| CN106067391A (en) | Stratiform silver-bearing copper pricker three-layer composite electric contact material prepared by a kind of atomization | |
| CN105200262A (en) | Preparation method of silver-based flaky electric contact material high in stannic oxide content | |
| CN101658931B (en) | Rare earth powder metallurgy iron aldurbra-containing oil bearing material and preparation technology thereof | |
| CN1323179C (en) | High-strength, High-conductivity copper-base alloy material and preparing method thereof | |
| CN102031411B (en) | Method for preparing compact W-Cu composite material at low temperature | |
| CN105369051A (en) | Novel copper alloy and preparation method thereof | |
| CN109593981B (en) | Preparation method of silver tin oxide contact material for improving sintering property of ingot blank | |
| CN103691935A (en) | Copper-based self-lubricating material and method for manufacturing same | |
| CN102492868A (en) | Cu-Bi alloy and preparation method thereof | |
| CN102031408A (en) | Method for preparing silver-based oxide electrical contact material with fibrous structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20100125 |