CN100365747C - Electric contact material for low voltage electric appliance - Google Patents
Electric contact material for low voltage electric appliance Download PDFInfo
- Publication number
- CN100365747C CN100365747C CNB2003101077712A CN200310107771A CN100365747C CN 100365747 C CN100365747 C CN 100365747C CN B2003101077712 A CNB2003101077712 A CN B2003101077712A CN 200310107771 A CN200310107771 A CN 200310107771A CN 100365747 C CN100365747 C CN 100365747C
- Authority
- CN
- China
- Prior art keywords
- silver
- contact material
- electrical contact
- tungsten
- diamond
- 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 - Lifetime
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- 239000000463 material Substances 0.000 title claims abstract description 13
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000004332 silver Substances 0.000 claims abstract description 18
- 229910052709 silver Inorganic materials 0.000 claims abstract description 17
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 15
- 239000010432 diamond Substances 0.000 claims abstract description 15
- UYKQQBUWKSHMIM-UHFFFAOYSA-N silver tungsten Chemical compound [Ag][W][W] UYKQQBUWKSHMIM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 7
- 239000000956 alloy Substances 0.000 claims abstract description 6
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 4
- MOFOBJHOKRNACT-UHFFFAOYSA-N nickel silver Chemical compound [Ni].[Ag] MOFOBJHOKRNACT-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 11
- 229910001316 Ag alloy Inorganic materials 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000001192 hot extrusion Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 239000010946 fine silver Substances 0.000 claims 2
- 229910017937 Ag-Ni Inorganic materials 0.000 claims 1
- 229910017984 Ag—Ni Inorganic materials 0.000 claims 1
- OMSFUHVZHUZHAW-UHFFFAOYSA-N [Ag].[Mo] Chemical compound [Ag].[Mo] OMSFUHVZHUZHAW-UHFFFAOYSA-N 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 4
- 229910002804 graphite Inorganic materials 0.000 abstract description 3
- 239000010439 graphite Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 2
- 238000010891 electric arc Methods 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000004663 powder metallurgy Methods 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
Abstract
The present invention provides an electric contact material for low voltage electric appliances, particularly an electrical contact material prepared by a powder metallurgy method, which is characterized in that 0.01-10 (mas) % of diamond powders of which the average particle size is 0.1-10 mu m is added into silver base alloy of silver-tungsten (Ag-w), silver-nickel (Ag-Ni), silver-tungsten carbide (Ag-WC), silver (Ag-MO), etc. Because a diamond has high hardness, high strength and high melting point, the bond strength of the diamond and silver is favorable. Compared with a traditional electrical contact of silver-tungsten, silver-tungsten carbide graphite, silver-graphite, etc., the new electrical contact material for the low voltage electrical appliances has the advantages of high welding resistance, high resistant capability of electric arc fire loss and long electrical endurance. Consequently, the present invention is suitable for various plastic-casing type breakers, small-size high-score breakers and AC contactors.
Description
Technical field
The invention belongs to powder alloy material, the silver-base alloy contact material that specifically a kind of low-voltage electrical apparatus is used.
Background technology
In recent years, constantly release the novel mold cased circuit breaker and the small-sized high score circuit breaker of various series both at home and abroad, these novel circuit breaker volumes are littler, and breaking capacity but increases substantially.Novel breaker is except adopting a series of new current limiting techniques to improve the breaking capacity, and to the anti-melting welding of used electrical contact, anti-electrical arc erosion and electric life are all had higher requirement.
Technical scheme
The present invention proposes the electrical contact material that a kind of low-voltage electrical apparatus is used, in the silver-base alloy of series such as silver-tungsten (Ag--w), silver-nickel (Ag-Ni), a silver-colored tungsten carbide (Ag--WC), silver (Ag-MO), add 0.01 one 10 (mas) %, the diamond dust of particle mean size 0.1 1 10 μ m.Utilize the electrical contact material of powder metallurgic method preparation.Because diamond has high rigidity, high strength, high-melting-point, better with the bond strength of silver.Compare with the electrical contact of series such as traditional silver-tungsten, a silver-colored tungsten carbide graphite, a silver-colored graphite, this novel low-voltage electrical apparatus electrical contact material has higher resistance fusion welding simultaneously, anti-electrical arc erosion ability and higher electric life.Therefore be more suitable for being applied on various mold cased circuit breaker, small-sized high score circuit breaker and the A.C. contactor.
It is silver or silver alloy and bortz powder that the present invention forms, and its composition proportion is:
Diamond (mas%) 0.01 one 10%
Particle mean size 0.1---10 μ m
Silver and/or silver alloy: surplus
Silver alloy can be:
Silver one tungsten (Ag-W), silver--the silver-base alloy of series such as tungsten carbide (Ag-WC), a silver-colored nickel (Ag-Ni), a silver-colored molybdenum (Ag-Mo).
Electrical contact material preparation technology of the present invention is:
1. copper/silver is coated on equably the surface of diamond dust, diamond dust granularity 0.01 one 10 μ m, coating thickness is: 5nm-1 μ m.
2. diamond dust after will coating and silver or silver alloy powder mix.
3. in inferior static pressure of pressure or the punching block isotactic pressing of 100MPa one 250MPa.
After the moulding pressed compact at the vacuum degree less than 1000Pa, 700-900.Under the C sintering 1-3 hour.
5. the blank behind the sintering is squeezed into section bar under 700-900 ℃.
6. section bar after the hot extrusion is processed through rolling or drawing.
7. section bar is cut into the shape of contact requirement.
Technical implementation way
Embodiment one
Composition proportion (mas%) diamond: 5%
Silver: surplus
Performance resistivity: 2.3119 μ Ω .cm
Density: 9.0g/cm
3
Hardness: HB 50-55MPa
Embodiment two
Composition proportion (mas%) nickel: 10%
Diamond: 1%
Silver: surplus
Performance resistivity: 2.0 μ Ω .cm
Density: 9.8g/cm
3
Hardness: HB 50-60MPa
Embodiment three
Composition proportion (ma s%) nickel: 30%
Gold Gang stone: 3%
Silver: surplus
Performance resistivity: 3.2 μ Ω .cm
Density: 9.3g/cm
3
Hardness: HB 60-65MPa
Embodiment four
Composition proportion (mas%): tungsten carbide wc 10%
Gold Gang stone: 5%
Silver: surplus
Performance resistivity: 3.5 μ Ω .cm
Density: 9.2g/cm
3
Hardness: HB 75-85MPa
Embodiment five
Composition proportion (mas%) tungsten: 40%
Gold Gang stone: 2%
Silver: surplus
Performance resistivity: 3.5 μ Ω .cm
Density: 13.7g/cm
3
Hardness: HB 75-85MPa
Embodiment six
Composition proportion (mas%) molybdenum: 30%
Gold Gang stone: 3%
Silver: surplus
Performance resistivity: 3.0 μ Ω .cm
Density: 11.7g/cm
3
Hardness: HB 75-85MPa
Claims (2)
1. electrical contact material that low-voltage electrical apparatus is used, its composition is fine silver or silver alloy and bortz powder, its composition proportion is:
Particle mean size is diamond dust (mas%) 0.01-10% of 0.1---10 μ m
Fine silver or silver alloy: surplus
Silver alloy is following any in several: silver-tungsten (Ag-W), silver-tungsten carbide (Ag-WC), silver-nickel (Ag-Ni), silver-molybdenum (Ag-Mo) silver-base alloy.
2. the electrical contact material of using by the described low-voltage electrical apparatus of claim 1, material preparation process is:
(1). silver is coated on the surface of diamond dust equably, diamond dust granularity 0.01-10 μ m, coating thickness is: 5nm-1 μ m;
(2). diamond dust after will coating again and silver or silver alloy powder mix;
(3). in inferior static pressure of the pressure of 100MPa---250MPa or punching block isotactic pressing;
(4). after the moulding pressed compact in vacuum degree less than 1000Pa, 700-900 ℃ following sintering 1-3 hour;
(5). the blank behind the sintering is hot extruded into section bar under 700～900 ℃;
(6). section bar after the hot extrusion is processed through rolling or drawing;
(7). section bar is cut into the shape of contact requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101077712A CN100365747C (en) | 2003-12-23 | 2003-12-23 | Electric contact material for low voltage electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101077712A CN100365747C (en) | 2003-12-23 | 2003-12-23 | Electric contact material for low voltage electric appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1555074A CN1555074A (en) | 2004-12-15 |
| CN100365747C true CN100365747C (en) | 2008-01-30 |
Family
ID=34334470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101077712A Expired - Lifetime CN100365747C (en) | 2003-12-23 | 2003-12-23 | Electric contact material for low voltage electric appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100365747C (en) |
Families Citing this family (15)
| 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 |
| CN103794385B (en) * | 2009-03-24 | 2016-03-30 | 联合材料公司 | Electric contact material |
| JP4898978B2 (en) * | 2010-06-22 | 2012-03-21 | 株式会社アライドマテリアル | Electrical contact material |
| CN102985988B (en) * | 2010-06-22 | 2015-09-02 | 联合材料公司 | Electric contact material |
| CN103108968A (en) * | 2010-09-21 | 2013-05-15 | 联合材料公司 | Electric contact material |
| CN103366975B (en) * | 2012-03-30 | 2017-12-29 | 施耐德电器工业公司 | Silver-based electric contact material |
| CN102737863B (en) * | 2012-07-03 | 2015-01-28 | 扬州乐银合金科技有限公司 | Silver nickel graphite composite contact terminal material and processing method thereof |
| CN103794391B (en) * | 2013-12-18 | 2016-03-23 | 福达合金材料股份有限公司 | A kind for the treatment of process strengthening Ag matrix phase in AgNi composite material and Ni wild phase wetability |
| DE102014225810B4 (en) * | 2014-12-15 | 2023-03-16 | Siemens Aktiengesellschaft | Contact unit for an electromechanical switching device and such a switching device |
| CN109207761A (en) * | 2018-10-11 | 2019-01-15 | 北京合圣凯达轨道交通设备有限公司 | A kind of preparation method of silver tungsten electrical contact material |
| CN111411279A (en) * | 2020-03-03 | 2020-07-14 | 福达合金材料股份有限公司 | Silver tungsten carbide diamond composite contact material and preparation method thereof |
| CN111411280A (en) * | 2020-03-03 | 2020-07-14 | 福达合金材料股份有限公司 | Copper tungsten carbide diamond composite electrical contact material and preparation method thereof |
| CN111363947A (en) * | 2020-03-09 | 2020-07-03 | 温州中希电工合金有限公司 | Silver tungsten carbide graphite composite material added with nickel alloy and preparation method thereof |
| CN112126810A (en) * | 2020-09-03 | 2020-12-25 | 大都克电接触科技（中国）有限公司 | Preparation method of silver tungsten carbide graphite electrical contact material |
| CN114737079A (en) * | 2022-04-20 | 2022-07-12 | 浙江国菱合金科技有限公司 | Contact material prepared from silver-copper-nickel alloy stone powder and miniature circuit breaker |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2073736C1 (en) * | 1993-03-11 | 1997-02-20 | Научно-производственное малое предприятие "Экстек" | Sintered electrocontact material on the base of copper |
| CN1037859C (en) * | 1994-03-30 | 1998-03-25 | 哈尔滨工业大学材料工程技术公司 | Copper base low voltage electric contact alloy material |
| CN1240233A (en) * | 1998-06-18 | 2000-01-05 | 刘剑壮 | Copper base silverless electric contact material |
-
2003
- 2003-12-23 CN CNB2003101077712A patent/CN100365747C/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2073736C1 (en) * | 1993-03-11 | 1997-02-20 | Научно-производственное малое предприятие "Экстек" | Sintered electrocontact material on the base of copper |
| CN1037859C (en) * | 1994-03-30 | 1998-03-25 | 哈尔滨工业大学材料工程技术公司 | Copper base low voltage electric contact alloy material |
| CN1240233A (en) * | 1998-06-18 | 2000-01-05 | 刘剑壮 | Copper base silverless electric contact material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1555074A (en) | 2004-12-15 |
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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 | ||
| C56 | Change in the name or address of the patentee |
Owner name: NI SHUCHUN; WANG YINGJIE Free format text: FORMER NAME OR ADDRESS: DONGDA ELECTROTECHNOLOGY CO LTD, HARBIN |
|
| CP03 | Change of name, title or address |
Address after: Room 503, C building, Champs Elysee, 136 the Yellow River Road, Harbin, Heilongjiang, zip code: 150090 Co-patentee after: Wang Yingjie Patentee after: Ni Shuchun Address before: A-6, a comprehensive industrial zone, Harbin Economic Development Zone, Heilongjiang, China Patentee before: DONGDA ELECTROTECHNOLOGY Co.,Ltd. |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Harbin Dong Da Highmeate Riaestock Ltd. Assignor: Wang Yingjie|Ni Shuchun Contract record no.: 2011230000248 Denomination of invention: Electric contact material for low voltage electric appliance Granted publication date: 20080130 License type: Exclusive License Open date: 20041215 Record date: 20110906 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160106 Address after: 150060 No. 8 Dalian Road, cottage Development Zone, Harbin, Heilongjiang Patentee after: Harbin Dong Da Highmeate Riaestock Ltd. Address before: 150090 Heilongjiang Province, Harbin city the Yellow River Road No. 136 champs Lai Court building C room 503 Patentee before: Ni Shuchun Patentee before: Wang Yingjie |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080130 |