CN100487839C - Silver-economizing low-voltage electrical-appliance contact materials - Google Patents
Silver-economizing low-voltage electrical-appliance contact materials Download PDFInfo
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- CN100487839C CN100487839C CNB2006100465945A CN200610046594A CN100487839C CN 100487839 C CN100487839 C CN 100487839C CN B2006100465945 A CNB2006100465945 A CN B2006100465945A CN 200610046594 A CN200610046594 A CN 200610046594A CN 100487839 C CN100487839 C CN 100487839C
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Abstract
This is a contactor for low voltage electric facilities with low content or none of silver. The making material includes 0.05-20% CeO2 or La2O3, copper, 0.05-15% silver or fine diamond powder.
Description
Technical field
The present invention relates to a kind of low-voltage electrical apparatus electrical contact material, particularly a kind of low-voltage electrical apparatus electrical contact material of few Yin Jieyin type.
Background technology
All adopt Pd-Ag substrate alloy material as electrical contact material in traditional low-voltage electrical apparatus, these Ag-based electrical contact materials cost an arm and a leg, and all will consume a large amount of noble metal silvers every year.
In recent years, domesticly invented a kind of electric contact material of copper-based alloy, representing patent is " copper base low-voltage electrical apparatus electrician contact alloy material " patent No. (94102452.0).This copper based no silver contact material is to add cadmium (Cd) and diadust in the copper matrix, and this contact material has excellent resistance fusion welding and anti-electrical arc erosion performance, and price is low.Use in the part low-voltage electrical apparatus at home, obtained result of use preferably.But also exist shortcoming on this copper-based non-silver contact serviceability: 1) the arcing molten bath of contact surface causes contact surface rough and uneven in surface more greatly after the arcing.2) when the big arcing rear section of diamond addition Buddha's warrior attendant graphitization, remain in contact surface, have influence on the contact resistance of contact.These shortcomings can cause the low-voltage electrical apparatus that uses this contact too high in break-make and electric life form test back temperature rise, have influence on the particularly use on A.C. contactor in low-voltage electrical apparatus of copper-based non-silver contact.Also contain the harmful element cadmium in the copper-based non-silver contact.
Summary of the invention
The objective of the invention is to propose a kind of silver-economizing low-voltage electrical-appliance contact materials, this electrical contact material only contains the oxidation and corrosion ability that a spot of silver increases copper, resistance fusion welding and arc ablation resistance ability all are better than copper based no silver contact material, can reduce the temperature rise afterwards of electrical contact significantly, and low price, can in low voltage electrical apparatus industry, replace the silver-base alloy contact material comprehensively.
The composition proportion that the present invention proposes a kind of few Yin Jieyin type electrical contact material is (percentage by weight):
Ceria 0.05-20%
Silver 0.05-15%
Diadust 0.05-5%
Copper surplus
In copper alloy matrix, add the ceria molecule that disperse distributes, can make alloy contact have the excellent anti-melting welding ability and the ability of arc resistant scaling loss.Rare earth element can also cause the electric arc arc root instability of contact surface when the combustion fox, shift out contact surface very soon, thereby shorten the arcing time, the material that reduces contact surface splashes, reduce the molten bath area, the integrality of contact surface after the assurance arcing, these effects all can reduce the back temperature rise of making of contact significantly.
In electrical contact material, add a spot of diadust and combine the resistance fusion welding and the anti-electrical arc erosion ability that can further improve contact material with rare earth oxide.In copper alloy, add the anti-oxidant and corrosion resistance that noble metal silver can improve alloy monolithic, reduce the degree of oxidation of electrical contact material in atmosphere, further reduce the temperature rise afterwards of electrical contact material.
The manufacturing process of silver-economizing low-voltage electrical-appliance contact materials:
1, mix---various material powders composition proportion is on request mixed;
2, moulding---the powder compression molding under the pressure of 300MPA that mixes;
The pressed compact of 3, sintering---compression moulding is come out of the stove in the cooling in 2 hours of 900 ℃ of sintering under protective atmosphere or in the vacuum.
4, hot working---the pressed compact behind the sintering is at 100mpa800 ℃ of following thermo forming.
5, rolling---be rolled into the thickness of requirement.
6, blanking forming---mould blanking forming is processed into the shape of requirement.
Advantage of the present invention is: this electrical contact material only contains a spot of silver even does not have the oxidation and corrosion ability that silver increases copper, resistance fusion welding and arc ablation resistance ability all are better than copper based no silver contact material, can reduce the temperature rise afterwards of electrical contact significantly, and low price, can in low voltage electrical apparatus industry, replace the silver-base alloy contact material comprehensively.
Embodiment
Embodiment 1
The composition proportion of electrical contact material is (percentage by weight):
Ceria or lanthanum sesquioxide 0.05%, silver 0.05%, diadust 0.1%, copper surplus.Performance index are: resistivity≤1.75 μ Ω .cm, hardness HB=350MPa, density 8.9g/cm3.
Manufacturing process:
1, the composition proportion of various material powders by above-mentioned requirements mixed;
2, the powder that mixes compression molding under the pressure of 300MPA;
3, the pressed compact of compression moulding is come out of the stove in the cooling in 2 hours of 900 ℃ of sintering under protective atmosphere or in the vacuum.
4, the pressed compact behind the sintering is at 100mpa800 ℃ of following thermo forming.
5, be rolled into the thickness of requirement.
6, mould blanking forming is processed into the shape of requirement.
Embodiment 2
The composition proportion of electrical contact material is (percentage by weight):
Ceria or lanthanum sesquioxide 0.5%, silver 0.1%, diadust 0.5%, copper surplus.Performance index are: resistivity≤1.85 μ Ω, hardness HB=450MPa, density 8.85g/cm3.
Manufacturing process is with embodiment one.
Embodiment 3
The composition proportion of electrical contact material (percentage by weight):
Ceria or lanthanum sesquioxide 1%, silver 0.3%, diadust 0.8%, copper surplus.Performance index are: resistivity≤1.9 μ Ω .cm, hardness HB=480MPa, density 8.75g/cm3。
Manufacturing process is with embodiment one.
Embodiment 4
The composition proportion of electrical contact material is (percentage by weight):
Ceria or lanthanum sesquioxide 2%, silver 0.5%, diadust 1.2%, copper surplus.Performance index: resistivity≤2.15 μ Ω .cm, hardness HB=520MPa, density 8.6g/cm3.
Manufacturing process is with embodiment one.
Embodiment 5
The composition proportion of electrical contact material is (percentage by weight):
Ceria or lanthanum sesquioxide 5%, silver 1%, diadust 2%, copper surplus.Performance index are: resistivity≤2.3 μ Ω .cm, hardness HB=600mpa, density 8.5g/cm3.
Manufacturing process is with embodiment one.
Embodiment 6
The composition proportion of electrical contact material (percentage by weight):
Ceria or lanthanum sesquioxide 10%, silver 2%, diadust 4%, copper surplus.Performance index are: resistivity≤2.7 μ Ω .cm, hardness HB=700MPa, density 8.4g/cm3
Manufacturing process is with embodiment one.
Embodiment 7
The composition proportion of electrical contact material (percentage by weight):
Ceria or lanthanum sesquioxide 0.05%, copper surplus.Performance index are: resistivity≤1.75 μ Ω .cm, hardness HB=700MPa, density 8.5g/cm3.
Manufacturing process is with embodiment one.
Embodiment 8
The composition proportion of electrical contact material (percentage by weight):
Ceria or lanthanum sesquioxide 0.5%,, copper surplus.Performance index are: resistivity≤2.1 μ Ω .cm, hardness HB=700MPa, density 8.5g/cm3.
Manufacturing process is with embodiment one.
Embodiment 9
The composition proportion of electrical contact material (percentage by weight):
Ceria or lanthanum sesquioxide 0.5%,, diadust 0.5%, copper surplus.Performance index are: resistivity≤2.2 μ Ω .cm, hardness HB=700MPa, density 8.5g/cm3.
Manufacturing process is with embodiment one.
Embodiment 10
The composition proportion of electrical contact material (percentage by weight):
Ceria or lanthanum sesquioxide 1%, copper surplus.Performance index are: resistivity≤2.0 μ Ω .cm, hardness HB=700MPa, density 8.5g/cm3.
Manufacturing process is with embodiment one.
Embodiment 11
The composition proportion of electrical contact material is (percentage by weight):
Ceria or lanthanum sesquioxide 3%, diadust 1%, copper surplus.Performance index are: resistivity≤2.2 μ Ω .cm, hardness HB=700MPa, density 8.5g/cm3.
Manufacturing process is with embodiment one.
Embodiment 12
The composition proportion of electrical contact material is (percentage by weight):
Ceria or lanthanum sesquioxide 5%, silver 0.2%, copper surplus.Performance index are: resistivity≤2.2 μ Ω .cm, hardness HB=700MPa, density 8.5g/cm3.
Manufacturing process is with embodiment one.
Embodiment 13
The composition proportion of electrical contact material is (percentage by weight):
Ceria or lanthanum sesquioxide 5%, diadust 0.5%, copper surplus.Performance index are: resistivity≤2.0 μ Ω .cm, hardness HB=700MPa, density 8.5g/cm3.
Manufacturing process is with embodiment one.
Embodiment 14
The composition proportion of electrical contact material is (percentage by weight):
Ceria or lanthanum sesquioxide 10%, copper surplus.Performance index are: resistivity≤2.3 μ Ω .cm, hardness HB=700MPa, density 8.5g/cm3.
Manufacturing process is with embodiment one.
Embodiment 15
The composition proportion of electrical contact material is (percentage by weight):
Ceria or lanthanum sesquioxide 10%, silver 10%,, copper surplus.Performance index are: resistivity≤2.3 μ Ω .cm, hardness HB=700MPa, density 8.5g/cm3.
Manufacturing process is with embodiment one.
Claims (1)
1. one kind is lacked Yin Jieyin type low-voltage electrical apparatus electrical contact material, it is characterized in that the composition proportion (percentage by weight) of material is as follows:
Ceria 0.05-20%
Silver 0.05-15%
Diadust 0.05-15%
Copper surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100465945A CN100487839C (en) | 2006-05-19 | 2006-05-19 | Silver-economizing low-voltage electrical-appliance contact materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100465945A CN100487839C (en) | 2006-05-19 | 2006-05-19 | Silver-economizing low-voltage electrical-appliance contact materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101075501A CN101075501A (en) | 2007-11-21 |
| CN100487839C true CN100487839C (en) | 2009-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100465945A Expired - Fee Related CN100487839C (en) | 2006-05-19 | 2006-05-19 | Silver-economizing low-voltage electrical-appliance contact materials |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9754735B2 (en) * | 2014-12-15 | 2017-09-05 | Siemens Aktiengesellschaft | Contact unit for an electromechanical switching device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101197215B (en) * | 2008-01-02 | 2010-08-04 | 陕西艺林实业有限责任公司 | Nano diamond doped silver based contact material processing method |
| CN102097152B (en) * | 2011-02-23 | 2012-01-11 | 西安建筑科技大学 | Cu-CeO2 contact material and preparation method thereof |
| CN102097220A (en) * | 2011-02-23 | 2011-06-15 | 西安建筑科技大学 | Cu-La2O3 contact material and preparation method thereof |
| CN103014408A (en) * | 2012-11-27 | 2013-04-03 | 靖江市海源有色金属材料有限公司 | Fixed-arc contact abnormal bar material |
-
2006
- 2006-05-19 CN CNB2006100465945A patent/CN100487839C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9754735B2 (en) * | 2014-12-15 | 2017-09-05 | Siemens Aktiengesellschaft | Contact unit for an electromechanical switching device |
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| Publication number | Publication date |
|---|---|
| CN101075501A (en) | 2007-11-21 |
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Assignee: Daqing Langmo Photoelectric Technology Co., Ltd. Assignor: Zhang Li Contract fulfillment period: 2009.11.3 to 2014.11.2 Contract record no.: 2009230000043 Denomination of invention: Silver-economizing low-voltage electrical-appliance contact materials Granted publication date: 20090513 License type: Exclusive license Record date: 20091106 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.11.3 TO 2014.11.2; CHANGE OF CONTRACT Name of requester: DAQING LANGMO PHOTOELECTRICITY SCIENCE AND TECHNOL Effective date: 20091106 |
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Effective date of registration: 20100108 Address after: Fahaniu town in Liaoning Province, the Xinmin City Street Patentee after: Shenyang new and the same metal composite materials Co., Ltd. Address before: Room 62, 422 Wu Jie street, Shenhe District, Shenyang, Liaoning Patentee before: Zhang Li |
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Owner name: SHENYANG XINTONGZHENG COMPOUND MATERIALS CO., LTD. Free format text: FORMER OWNER: SHENYANG XINTONGZHENG METAL COMPOSITE MATERIAL CO., LTD. Effective date: 20141125 |
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Free format text: CORRECT: ADDRESS; FROM: 110325 SHENYANG, LIAONING PROVINCE TO: 110026 SHENYANG, LIAONING PROVINCE |
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Effective date of registration: 20141125 Address after: The Shenyang economic and Technological Development Zone, Liaoning province Shenyang City twenty street 110026 No. 62 Patentee after: Shenyang Xintongzheng Compound Materials Co., Ltd. Address before: 110325 Xinmin City in Liaoning Province town of Fahaniu this street Patentee before: Shenyang new and the same metal composite materials Co., Ltd. |
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