CN1231344A - Dispersion reinforced copper base electrodes alloy - Google Patents
Dispersion reinforced copper base electrodes alloy Download PDFInfo
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- CN1231344A CN1231344A CN 98104885 CN98104885A CN1231344A CN 1231344 A CN1231344 A CN 1231344A CN 98104885 CN98104885 CN 98104885 CN 98104885 A CN98104885 A CN 98104885A CN 1231344 A CN1231344 A CN 1231344A
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Abstract
The present invention relates to a copper base alloy used as electrode containing rare earth oxide and its preparation method. Its compositions (wt%) contains Y2O3 (0.1-2.0), and Cu (rest). Its preparation method includes the following steps: mixing Y2O3 powder and Cu powder according to the predefined proportion, alloying them in high-energy agitatory ball grinding mill, pressing the above-mentioned alloyed CuY2O3 powder, sintering and extruding to obtain semifinished rod material and sheet material product. Said electrode alloy is good in electrical conductivity and thermal conductivity,a nd resistant to electric arc ablation, and can be used as electric material in fields of automobile, motocycle and electric industries.
Description
The present invention relates to a kind of copper base alloy and preparation method thereof, particularly be used as the copper base alloy electro-conductive material of electrode materials.
Copper base electrode alloy mainly is used as the resistance welding electrode material in automobile, the motorcycle industry, and line material in the electrician trade and high-low pressure interconnecting devices.
In recent years,, existing electrode materials is had higher requirement along with the development of electrode materials related industries, as: when keeping the good conductive thermal conductivity, must possess higher high temperature strength and hardness.The research of current material mainly concentrates on copper-transition element (as: Cu-Zr, Cu-Cr, Cu-Ni-Ti, Cu-Be-Co etc.), and strengthened dispersion alloy mainly contains CuAl2O3, CuTiC, CuTiN etc.Technology of preparing is oxidation in founding, the powder, powder mixing machine etc.Though these methods improve to some extent to the performance and the use range of copper base electrode alloy,, do not have significantly and improve indexs such as its hot strength, electric conductivity and anti-electric-arc scaling loss abilities.
The objective of the invention is, utilize the Y2O3 chemical property stable, good thermal stability, the characteristic that hardness and fusing point are all higher, in conjunction with the mechanical alloying technology, by high-energy ball milling, make phase mutual diffusion between two constituent elements, morphological element's homogenizing, finally make the Y2O3 particle dispersion be distributed in intracrystalline and crystal boundary, strengthen matrix, improve recrystallization temperature, material property is improved.
Copper base electrode alloy composition of the present invention (weight) % is: Y2O3 0.1-2.0, surplus is Cu.
Adopt following method to prepare the copper base electrode alloy material:
(1) the Y2O3 powder of purity more than 99.9% mixed by required composition with the Cu powder, put into the nitrogen protection of water-cooled high-energy stirring formula ball mill and grind preparation powdered alloy, ratio of grinding media to material 4: 1,20 hours ball milling time.
(2) under 200-400MPa pressure with the CuY2O3 powdered alloy compression moulding of operation (1),
(3) pressed compact of sintering circuit (2) in 800-950 ℃ of temperature range,
(4) extruding, cold working obtains finished product.
Alloy material of the present invention has been applied to weldingvoltage 380V, welding current 7300A, weld intervals 8 cycle, on the suspension type welding machine of welding pressure 150kg, with existing Cu-Cr, alloy ratios such as Cu-Al2O3 improve 1-2 work-ing life doubly.Table 1 is the physicals of CuY2O3 alloy conductive material of the present invention, and table 2 is the comparison of CuY2O3 alloy conductive material of the present invention and Cu-Cr, Cu-Er, Cu-Al2O3 alloy conductive material electric life.
Specify the present invention below in conjunction with example.
Embodiment 1:
(1) the Y2O3 powder of purity more than 99.9% and Cu powder were mixed by weight 0.4: 99.6, put into water-cooled high-energy stirring formula ball mill,, under the condition of 20 hours ball milling time, protect, grind and prepare powdered alloy with nitrogen atmosphere ratio of grinding media to material 4: 1
(2) under 200-400MPa pressure with the CuY2O3 powdered alloy compression moulding of operation (1),
(3) pressed compact of sintering circuit (2) in 800-950 ℃ of temperature range,
(4) extruding, cold working obtains finished product.
Embodiment 2:
The Y2O3 powder of purity more than 99.9% and Cu powder were mixed by weight 0.8: 99.2, prepare the CuY2O3 alloy electrode material by the method identical with embodiment 1.
Embodiment 3:
The Y2O3 powder of purity more than 99.9% and Cu powder were mixed by weight 1.5: 98.5, prepare the CuY2O3 alloy electrode material by the method identical with embodiment 1.
Embodiment 4:
The Y2O3 powder of purity more than 99.9% and Cu powder were mixed by weight 2.0: 98.0, prepare the CuY2O3 alloy electrode material by the method identical with embodiment 1.
Table 1 CuY2O3 alloy conductive of the present invention material physical property
| Sequence number | Alloy composition (% by weight) | Material property | |||||
| Y2O3 | Cu | Hardness (HV) | Tensile strength (MPa) | Percentage elongation (%) | Conductance (IACS) % | Softening temperature (℃) | |
| 1 | 0.4 | Surplus | 96 | 473 | 15 | 90 | 700 |
| 2 | 0.8 | Surplus | 115 | 490 | 14 | 85 | 800 |
| 3 | 1.5 | Surplus | 138 | 530 | 11 | 80 | 850 |
| 4 | 2.0 | Surplus | 142 | 580 | 8 | 80 | 850 |
Table 2 CuY2O3 alloy conductive material and other material operation test result's comparison
| Numbering | Alloy composition (% by weight) | Implementation condition | Electric life (chassis) | The result | Remarks | ||||
| Y2O3 | Cr | Er | Al2O3 | Cu | |||||
| 1 embodiment | 1.1 | Surplus | 380V 7300A | 1000 | Outstanding | Hanging-welder | |||
| 2 Comparative Examples | 1.0 | Surplus | 380V 7300A | 500 | Qualified | Hanging-welder | |||
| 3 Comparative Examples | 0.4 | 0.4 | Surplus | 380V 7300A | 600 | Qualified | Hanging-welder | ||
| 4 Comparative Examples | 1. 1 | Surplus | 380V 7300A | 600 | Qualified | Hanging-welder | |||
Claims (2)
1. a copper base electrode alloy that contains rare earth oxide is characterized in that described electrode metal composition (weight) % is: Y
2O
30.1-2.0 surplus is Cu.
2. the preparation method of copper base electrode alloy as claimed in claim 1 is characterized in that adopting the preparation technology of following order:
(1) with the Y of purity more than 99.9%
2O
3Powder mixes by required composition with the Cu powder, puts into water-cooled high-energy stirring formula ball mill and prepares powdered alloy, and milling atmosphere is a nitrogen, grinds ratio of grinding media to material 4: 1,20 hours ball milling time
(2) under 200-400MPa pressure with the CuY of operation (1)
2O
3Powdered alloy compression moulding,
(3) pressed compact of sintering circuit (2) in 800-950 ℃ of temperature range,
(4) extruding, cold working obtains finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98104885A CN1079441C (en) | 1998-04-06 | 1998-04-06 | Dispersion reinforced copper base electrodes alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98104885A CN1079441C (en) | 1998-04-06 | 1998-04-06 | Dispersion reinforced copper base electrodes alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1231344A true CN1231344A (en) | 1999-10-13 |
| CN1079441C CN1079441C (en) | 2002-02-20 |
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ID=5218536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98104885A Expired - Fee Related CN1079441C (en) | 1998-04-06 | 1998-04-06 | Dispersion reinforced copper base electrodes alloy |
Country Status (1)
| Country | Link |
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| CN (1) | CN1079441C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100354999C (en) * | 2005-10-07 | 2007-12-12 | 乐清市帕特尼触头有限公司 | Cleaning environment-friendly type copper-base contact material for low-voltage electrical apparatus and its contact preparing method |
| CN101956094A (en) * | 2010-10-15 | 2011-01-26 | 哈尔滨工业大学深圳研究生院 | High-strength and high-conductivity dispersion-strengthened alloy and preparation method thereof |
| CN103394798A (en) * | 2013-07-31 | 2013-11-20 | 常州特尔玛枪嘴有限公司 | Brazing type plasma electrode and manufacturing method thereof |
| CN103920878A (en) * | 2014-02-25 | 2014-07-16 | 山东科技大学 | Reaction droplet deposition device and method for using same to prepare dispersion strengthened copper |
| CN104746068A (en) * | 2015-04-09 | 2015-07-01 | 安徽工业大学 | Copper-based coating for iron-based alloy surface laser cladding and preparation method thereof |
| CN104959609A (en) * | 2015-06-05 | 2015-10-07 | 东睦新材料集团股份有限公司 | Preparation method of copper-base powder metallurgy part |
| CN105506329A (en) * | 2015-12-09 | 2016-04-20 | 中南大学 | Preparation method for Cu-Al2O3 nano dispersion strengthened alloy with high Al2O3 concentration |
| CN106834791A (en) * | 2017-01-16 | 2017-06-13 | 江西理工大学 | A kind of rare earth oxide particles strengthen the preparation method of high-conductivity copper alloy |
| CN107377966A (en) * | 2017-07-21 | 2017-11-24 | 东北大学 | A kind of copper-based composite powder of high thermal stability yttria dispersion strengthening nanostructured and preparation method thereof |
| CN110747364A (en) * | 2019-11-12 | 2020-02-04 | 佛山科学技术学院 | High-strength, high-conductivity and heat-resistant copper-chromium alloy and preparation method thereof |
| CN113355550A (en) * | 2021-06-15 | 2021-09-07 | 合肥工业大学 | Doped Y2O3Preparation method of reinforced CuCrZr alloy |
| CN114107716A (en) * | 2021-12-02 | 2022-03-01 | 合肥工业大学 | Preparation method of copper-based composite material for electrical contact |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6360246A (en) * | 1986-09-01 | 1988-03-16 | Hitachi Ltd | Casting alloy for contact for vacuum circuit breaker |
| SU1435643A1 (en) * | 1987-01-12 | 1988-11-07 | Белорусское республиканское научно-производственное объединение порошковой металлургии | Copper-base tool electrode for electroerosion working |
-
1998
- 1998-04-06 CN CN98104885A patent/CN1079441C/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100354999C (en) * | 2005-10-07 | 2007-12-12 | 乐清市帕特尼触头有限公司 | Cleaning environment-friendly type copper-base contact material for low-voltage electrical apparatus and its contact preparing method |
| CN101956094A (en) * | 2010-10-15 | 2011-01-26 | 哈尔滨工业大学深圳研究生院 | High-strength and high-conductivity dispersion-strengthened alloy and preparation method thereof |
| CN101956094B (en) * | 2010-10-15 | 2011-11-30 | 哈尔滨工业大学深圳研究生院 | Preparation method of high-strength and high-conductivity dispersion-strengthened alloy |
| CN103394798A (en) * | 2013-07-31 | 2013-11-20 | 常州特尔玛枪嘴有限公司 | Brazing type plasma electrode and manufacturing method thereof |
| CN103920878A (en) * | 2014-02-25 | 2014-07-16 | 山东科技大学 | Reaction droplet deposition device and method for using same to prepare dispersion strengthened copper |
| CN103920878B (en) * | 2014-02-25 | 2015-10-28 | 山东科技大学 | Reaction molten drop precipitation equipment and prepare the method for dispersion-strengthened Cu with it |
| CN104746068A (en) * | 2015-04-09 | 2015-07-01 | 安徽工业大学 | Copper-based coating for iron-based alloy surface laser cladding and preparation method thereof |
| CN104959609A (en) * | 2015-06-05 | 2015-10-07 | 东睦新材料集团股份有限公司 | Preparation method of copper-base powder metallurgy part |
| CN105506329A (en) * | 2015-12-09 | 2016-04-20 | 中南大学 | Preparation method for Cu-Al2O3 nano dispersion strengthened alloy with high Al2O3 concentration |
| CN106834791A (en) * | 2017-01-16 | 2017-06-13 | 江西理工大学 | A kind of rare earth oxide particles strengthen the preparation method of high-conductivity copper alloy |
| CN106834791B (en) * | 2017-01-16 | 2018-03-27 | 江西理工大学 | A kind of rare earth oxide particles strengthen the preparation method of high-conductivity copper alloy |
| CN107377966A (en) * | 2017-07-21 | 2017-11-24 | 东北大学 | A kind of copper-based composite powder of high thermal stability yttria dispersion strengthening nanostructured and preparation method thereof |
| CN110747364A (en) * | 2019-11-12 | 2020-02-04 | 佛山科学技术学院 | High-strength, high-conductivity and heat-resistant copper-chromium alloy and preparation method thereof |
| CN113355550A (en) * | 2021-06-15 | 2021-09-07 | 合肥工业大学 | Doped Y2O3Preparation method of reinforced CuCrZr alloy |
| CN113355550B (en) * | 2021-06-15 | 2022-07-15 | 合肥工业大学 | Doped Y2O3Preparation method of reinforced CuCrZr alloy |
| CN114107716A (en) * | 2021-12-02 | 2022-03-01 | 合肥工业大学 | Preparation method of copper-based composite material for electrical contact |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1079441C (en) | 2002-02-20 |
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