CN1055973C - Copper alloy contact material for low voltage electric equipment - Google Patents
Copper alloy contact material for low voltage electric equipment Download PDFInfo
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- CN1055973C CN1055973C CN97106092A CN97106092A CN1055973C CN 1055973 C CN1055973 C CN 1055973C CN 97106092 A CN97106092 A CN 97106092A CN 97106092 A CN97106092 A CN 97106092A CN 1055973 C CN1055973 C CN 1055973C
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- copper alloy
- contact material
- copper
- contact
- voltage electric
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Abstract
The present invention relates to a copper alloy contact material for a low-voltage electric device, which is mainly characterized in that the copper alloy contact material is prepared from the ingredients of 0.1 to 5 wt% of cadmium, 0.1 to 5 wt% of carbon, 0.1 to 10 wt% of carbon compound, 0.1 to 3 wt% of boron and copper as the rest. The present invention has the advantages of favorable electric conducting properties and heat conducting properties, electric-arc burning loss resistance, fusion welding resistance and favorable anti-oxidation properties; the contact resistance of an electrical contact is reduced, silver-alloy contacts in a low-voltage electric device are replaced, and the cost is reduced.
Description
The present invention relates to a kind of alloy material, particularly a kind of copper alloy contact material for low-voltage electric appliances.
Electrician's contact is one of key element of low-voltage apparatus, its effect is to connect and breaking current, therefore electric contact material must possess favorable conductive, thermal conductivity, also possess performances such as anti-electrical arc erosion and anti-melting welding, in order to satisfy above-mentioned performance requriements, present all kinds of low-voltage apparatuses all adopt silver alloys as electric contact material (for example alloys such as Ag-cdo series, Ag-Ni series, Ag-C series).So traditional silver alloys contact is very big to the consumption of precious metals silver.For many years, the scientific worker studies the no silver contact material of low price, dependable performance always, copper and copper alloy are more satisfactory for silver contact material, the resistivity of copper is a little more than silver, copper is that antioxidant property is relatively poor as the main drawback of electric contact material, and cupric oxide is non-conductive, in case generate oxide film on the copper contact surface, can cause the surface resistivity of electrician's contact to raise, and then cause the temperature rise of electrical equipment too high.
The purpose of this invention is to provide a kind of copper alloy contact material for low-voltage electric appliances, have excellent conducting performance, heat conductivility, anti-electrical arc erosion, anti-melting welding, while antioxidant property excellence, the contact resistance of electrician's contact reduces, and replaces the silver alloys contact in the low-voltage apparatus, reduces cost.
The composition and the weight percent of the copper alloy contact material for low-voltage electric appliances that the present invention proposes are: the mixture 0.1-10 of cadmium 0.1-5%, carbon 0.1-5, tantalum carbide or niobium carbide or tantalum carbide and niobium carbide, boron 0.1-3, surplus is a copper.
Add arc extinguishing and the oxidation-resistance that cadmium can increase the copper alloy contact in the alloy material; Add arc extinguishing and the resistance fusion welding that carbon can improve the copper alloy contact in the alloy material; Add carbide in the alloy material and can increase the resistance fusion welding of copper alloy contact, anti-electrical arc erosion and oxidation-resistance; Add boron in the alloy material and can increase copper alloy contact arc-extinguishing and oxidation-resistance.
The present invention and prior art are compared and are had following advantage: have excellent conducting performance, heat conductivility, anti-electrical arc erosion, anti-melting welding, and antioxidant property is good, the contact resistance of electrician's contact reduces, and can replace the silver alloys contact in the low-voltage apparatus, and cost is lower.
Provide specific embodiments of the invention below.
Embodiment 1
The composition of copper alloy contact material and weight percent are: cadmium 0.1, carbon 0.1, niobium carbide 0.1, boron 0.1, copper surplus.
Copper alloy performance index: density 8.85g/cm
3
Resistivity 1.7 μ Ω cm
Hardness HB (2.5/62.5) 37
Embodiment 2
The composition of copper alloy contact material and weight percent are: cadmium 0.5, carbon 0.5, tantalum carbide 0.5, boron 0.5, copper surplus.
Copper alloy performance index: density 8.80g/cm
3
Resistivity 1.9 μ Ω cm
Hardness HB (2.5/62.5) 42
Embodiment 3
The composition of copper alloy contact material and weight percent are: cadmium 1, carbon 1, niobium carbide and tantalum carbide mixture 1, boron 1, copper surplus.
Copper alloy performance index: density 8.70g/cm
3
Resistivity 2.3 μ Ω cm
Hardness HB (2.5/62.5) 49
Embodiment 4
The composition of copper alloy contact material and weight percent are: the mixture 1.5 of cadmium 1.5, carbon 1.5, niobium carbide and tantalum carbide, boron 1.5, copper surplus.
Copper alloy performance index: density 8.65g/cm
3
Resistivity 2.5 μ Ω cm
Hardness HB (2.5/62.5) 54
Embodiment 5
The composition of copper alloy contact material and weight percent are: the mixture 2 of cadmium 2, carbon 2, niobium carbide and tantalum carbide, boron 2, copper surplus.
Copper alloy performance index: density 8.60g/cm
3
Resistivity 2.7 μ Ω cm
Hardness HB (2.5/62.5) 62
Embodiment 6
The composition of copper alloy contact material and weight percent are: cadmium 5, carbon 5, niobium carbide and or tantalum carbide 5, boron 5, copper surplus.
Copper alloy performance index: density 8.45g/cm
3
Resistivity 4.9 μ Ω cm
Hardness HB (2.5/62.5) 57
Embodiment 7
The composition of copper alloy contact material and weight percent are: cadmium 3, carbon 3, niobium carbide 10, boron 0.5, copper surplus.
Copper alloy performance index: density 8.60g/cm
3
Resistivity 3.2 μ Ω cm
Hardness HB (2.5/62.5) 63
Embodiment 8
The composition of copper alloy contact material and weight percent are: cadmium 5, carbon 4, tantalum carbide 1, boron 2, copper surplus.
Copper alloy performance index: density 8.60g/cm
3
Resistivity 3.6 μ Ω cm
Hardness HB (2.5/62.5) 56
The copper alloy electrician contact that copper-cadmium of the present invention-carbide-boron series alloy is become to be distributed into is installed in and carries out the electric property test result on the low-voltage apparatuses such as alternating current contactor, automatic air-break switch, isolating switch and show: performance index such as the temperature rise of electrical equipment, connection, interrupting performance, thermostability, electric life all satisfy the national standard requirement of corresponding low-pressure electronic equipment product.
Claims (1)
1, a kind of copper alloy contact material for low-voltage electric appliances is characterized in that: its composition and weight percent are: the mixture 0.1-10 of cadmium 0.1-5, carbon 0.1-5, tantalum carbide or niobium carbide or tantalum carbide and niobium carbide, boron 0.1-3, surplus is a copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97106092A CN1055973C (en) | 1996-12-31 | 1997-09-09 | Copper alloy contact material for low voltage electric equipment |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96114684.2 | 1996-12-31 | ||
| CN 96114684 CN1159484A (en) | 1996-12-31 | 1996-12-31 | Copper alloy contact material for low-voltage electric appliances |
| CN97106092A CN1055973C (en) | 1996-12-31 | 1997-09-09 | Copper alloy contact material for low voltage electric equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1186870A CN1186870A (en) | 1998-07-08 |
| CN1055973C true CN1055973C (en) | 2000-08-30 |
Family
ID=25744008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97106092A Expired - Fee Related CN1055973C (en) | 1996-12-31 | 1997-09-09 | Copper alloy contact material for low voltage electric equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1055973C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057345C (en) * | 1998-10-08 | 2000-10-11 | 王英杰 | Copper-base silver-less and cadmium-less alloy material for low-voltage electrical contact |
| WO2011027858A1 (en) * | 2009-09-07 | 2011-03-10 | 株式会社 白金 | Copper alloy and method for producing same |
| CN102162045B (en) * | 2011-03-29 | 2013-04-03 | 温州银泰合金材料有限公司 | Electrical contact based on powdered copper and manufacturing process thereof |
| CN102306512A (en) * | 2011-06-27 | 2012-01-04 | 福达合金材料股份有限公司 | Copper-based contact material for low-voltage apparatus |
| CN106011519A (en) * | 2016-06-20 | 2016-10-12 | 仙居县南大合金科技有限公司 | Rare earth carbide copper-based contact material for low voltage electric appliances and processing method thereof |
| CN105977065A (en) * | 2016-06-20 | 2016-09-28 | 仙居县南大合金科技有限公司 | Chromium carbide copper-based contact material for low-voltage electric appliance, and processing method for chromium carbide copper-based contact material |
| CN109280793A (en) * | 2018-10-15 | 2019-01-29 | 安徽银点电子科技有限公司 | A kind of copper-based electrical contact material of highly resistance arc erosion and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5558345A (en) * | 1978-10-25 | 1980-05-01 | Hitachi Chem Co Ltd | Cast alloy material for sliding contact maker |
| CN1031401A (en) * | 1987-08-15 | 1989-03-01 | 郑州轻金属研究所 | A kind of copper alloy as contact material of vacuum switch |
-
1997
- 1997-09-09 CN CN97106092A patent/CN1055973C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5558345A (en) * | 1978-10-25 | 1980-05-01 | Hitachi Chem Co Ltd | Cast alloy material for sliding contact maker |
| CN1031401A (en) * | 1987-08-15 | 1989-03-01 | 郑州轻金属研究所 | A kind of copper alloy as contact material of vacuum switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1186870A (en) | 1998-07-08 |
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Owner name: DONGFANG GROUP CO., LTD. Free format text: FORMER OWNER: KONG QIQI Effective date: 20030704 Owner name: KONG QIQI Free format text: FORMER OWNER: WANG QIAN Effective date: 20030704 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20030704 Address after: 150060, Heilongjiang province Harbin City cottage Development Zone Bohai three Road East electrician Co., Ltd. Patentee after: Dongfang Group Limited by Share Ltd. Address before: 3 2-5-1, building 25, 110002 Rongsheng street, Heping District, Liaoning, Shenyang Patentee before: Kong Qiqi Effective date of registration: 20030704 Patentee after: Kong Qiqi Patentee before: Wang Qian |
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Owner name: HARBIN DONGDA HIGH NEW MATERIAL CO., LTD. Free format text: FORMER OWNER: DONGFANG GROUP CO., LTD. Effective date: 20040827 |
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Effective date of registration: 20040827 Address after: Haping Road Development Zone in Harbin City, Heilongjiang province 150060 District Dalian Road No. 8 Patentee after: Harbin Dong Da Highmeate Riaestock Ltd. Address before: 150060, Heilongjiang province Harbin City cottage Development Zone Bohai three Road East electrician Co., Ltd. Patentee before: Dongfang Group Limited by Share Ltd. |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |