CN1305017A - Copper-based composition used as electric contacts - Google Patents
Copper-based composition used as electric contacts Download PDFInfo
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- CN1305017A CN1305017A CN 01103263 CN01103263A CN1305017A CN 1305017 A CN1305017 A CN 1305017A CN 01103263 CN01103263 CN 01103263 CN 01103263 A CN01103263 A CN 01103263A CN 1305017 A CN1305017 A CN 1305017A
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- electric contacts
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Abstract
A copper-base composite material for electric contact contains C (0.1-2.0 Wt.%), tungsten carbide (0.01-1 Wt.%), Cd (0.1-4 Wt.%), niobium carbide (0.5-5 Wt.%), Ni (0.5-3 Wt.%), alumina (0.5-5 Wt.%), lanthanum oxide (0.01-2 Wt.%), Si (0.1-1 Wt.%), B (0.1-1 Wt.%) and Cu (the rest). Its advantages are high electric and thermal conductivities, high arc etch and fusion weld resistance, strong arc extinguishing power and strength restoring power, and simple sintering technology.
Description
The invention belongs to metallurgical technology field, is a kind of copper-based composition used as electric contacts.
At present, in prior art used as electric contacts material, based on silver-base alloy or silver-based composite material.The deficiency of their maximums be expensive price and in the bringing onto load circuit break-make life-span not long.Thereby since they resistance fusion welding can on the problem that exists cause electrical contact easily to melt adhesion causing consumer to be led to a disaster by scaling loss.For addressing the aforementioned drawbacks, also the someone has invented the non-silver electric contact material, as: " electric contact material of copper-based alloy " (ZL87103076), " high resistance fusion welding composite copper-based non-silver electric contact material " and (ZL96101833), " copper-base powder alloy material for electric contact " (ZL96115149), " copper alloy contact material for low-voltage electric appliances " (ZL97106092), " electric special alloy contact material for low-voltage electric appliance " (ZL97125818), " silver-free composite material for electrical contact and production technique " (ZL98116484) etc.The no yellow gold of these prior arts has added some compositions for reaching anti-molten purpose, but these compositions are if select the improper resistivity of contact that will cause higher, thereby it is high slightly and do not meet the specified requirement of related standards to cause resistance to become ambassador's contact temperature rise.
The object of the present invention is to provide a kind of copper-based composition used as electric contacts, its resistivity is low, the resistance to corrosion height, and anti-mechanical shock performance is good.
The following realization of purpose of the present invention: a kind of copper-based composition used as electric contacts, the proportioning components of its material is (weight percent): carbon 0.1～2.0, wolfram varbide 0.01～1.0, cadmium 0.1～4, niobium carbide 0.5～5, nickel 0.5～3, aluminum oxide 0.5～5, lanthanum trioxide 0.01～2, silicon 0.1～1, boron 0.1～1, copper surplus.
The present invention is matrix with copper, has guaranteed that material has good heat conduction and electroconductibility.Added simultaneously and had dispersion-strengthened, oxide compound that fusing point and hardness are higher and carbide grade in an imperial examination two-phase particle, the arc ablation resistance and the anti-melting welding ability of raising contact; In addition, added low melting point element, sintering process is more simplified, the liquid phase that strengthens between each composition is bonding; And the element that has low Chopping Current and have the arc extinguishing effect, the dielectric strength restorability when improving the contact disjunction have been added.Concrete going up says that the main purpose and the effect that add each element are:
Carbon makes material have anti-mechanical shock and anti-electric-arc ablation property as the skeleton of material.Wolfram varbide and niobium carbide can improve the resistance fusion welding energy of material, reduce contact surface resistance.Nickel makes material have stronger corrosion resistance, improves the resistance fusion welding of contact.Aluminum oxide and lanthanum trioxide play dispersion-strengthened action, improve the resistance fusion welding and the resistance of oxidation of contact.Silicon and boron can strengthen the arc extinguishing of contact.
The invention has the advantages that: conduction and the thermal conductivity close with silver, anti-electric-arc is ablated, and anti-mechanical shock has stronger arc extinguishing and lower Chopping Current simultaneously, and temperature rise is lower.Therefore it has excellent comprehensive performance and higher performance, is a kind of contact material of new replacement silver alloys.
Provide embodiment below.
Embodiment 1
Copper-based composition used as electric contacts, the proportioning components of its material are (weight percent): carbon 0.1, wolfram varbide 0.01, cadmium 0.1, niobium carbide 0.5, nickel 0.5, aluminum oxide 0.5, lanthanum trioxide 0.01, silicon 0.1, boron 0.1, copper surplus.Its performance index: resistivity 1.82 μ Ω cm, density 8.75g/cm
3, hardness HB (HV) 40.
Embodiment 2
Copper-based composition used as electric contacts, the proportioning components of its material are (weight percent): carbon 0.3, wolfram varbide 0.03, cadmium 0.4, niobium carbide 1.0, nickel 0.7, aluminum oxide 1.0, lanthanum trioxide 0.05, silicon 0.3, boron 0.3, copper surplus.Its performance index: resistivity 2.10 μ Ω cm, density 8.70g/cm
3, hardness HB (HV) 48.
Embodiment 3
Copper-based composition used as electric contacts, the proportioning components of its material are (weight percent): carbon 0.5, wolfram varbide 0.05, cadmium 1.0, niobium carbide 1.5, nickel 1.0, aluminum oxide 1.5, lanthanum trioxide 0.07, silicon 0.5, boron 0.5, copper surplus.Its performance index: resistivity 2.23 μ Ω cm, density 8.65g/cm
3, hardness HB (HV) 58.
Embodiment 4
Copper-based composition used as electric contacts, the proportioning components of its material are (weight percent): carbon 1.0, and wolfram varbide 0.08, cadmium 1.5, niobium carbide 2.0, nickel 1.5, aluminum oxide 2.0, lanthanum trioxide (0.1, silicon 0.6, boron 0.6, copper surplus.Its performance index: resistivity 2.50 μ Ω cm, density 8.62g/cm
3, hardness HB (HV) 64.
Embodiment 5
Copper-based composition used as electric contacts, the proportioning components of its material are (weight percent): carbon 1.5, wolfram varbide 0.09, cadmium 2.0, niobium carbide 2.5, nickel 2.0, aluminum oxide 2.5, lanthanum trioxide 0.5, silicon 0.7, boron 0.7, copper surplus.Its performance index: resistivity 2.75 μ Ω cm, density 8.60g/cm
3, hardness HB (HV) 65.
Embodiment 6
Copper-based composition used as electric contacts, the proportioning components of its material are (weight percent): carbon 2.0, wolfram varbide 0.1, cadmium 2.5, niobium carbide 3.0, nickel 2.5, aluminum oxide 3.0, lanthanum trioxide 1.0, silicon 0.8, boron 0.8, copper surplus.Its performance index: resistivity 2.95 μ Ω cm, density 8.57g/cm
3, hardness HB (HV) 72.
Embodiment 7
Copper-based composition used as electric contacts, the proportioning components of its material are (weight percent): carbon 2.0, wolfram varbide 0.3, cadmium 3.0, niobium carbide 4.0, nickel 3.0, aluminum oxide 3.5, lanthanum trioxide 1.5, silicon 0.9, boron 0.9, copper surplus.Its performance index: resistivity 3.82 μ Ω cm, density 8.50g/cm
3, hardness HB (HV) 73.
Embodiment 8
Copper-based composition used as electric contacts, the proportioning components of its material are (weight percent): carbon 2.0, wolfram varbide 0.5, cadmium 3.5, niobium carbide 5.0, nickel 3.0, aluminum oxide 4.0, lanthanum trioxide 2.0, silicon 1.0, boron 1.0, copper surplus.Its performance index: resistivity 4.20 μ Ω cm, density 8.45g/cm
3, hardness HB (HV) 76.
Embodiment 9
Copper-based composition used as electric contacts, the proportioning components of its material are (weight percent): carbon 2.0, wolfram varbide 1.0, cadmium 4.0, niobium carbide 5.0, nickel 3.0, aluminum oxide 5.0, lanthanum trioxide 2.0, silicon 1.0, boron 1.0, copper surplus.Its performance index: resistivity 4.80 μ Ω cm, density 8.25g/cm
3, hardness HB (HV) 86.
Claims (1)
1, a kind of copper-based composition used as electric contacts, it is characterized in that: the proportioning components of material is (weight percent): carbon 0.1～2.0, wolfram varbide 0.01～1.0, cadmium 0.1～4, niobium carbide 0.5～5, nickel 0.5～3, aluminum oxide 0.5～5, lanthanum trioxide 0.01～2, silicon 0.1～1, boron 0.1～1, copper surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01103263 CN1109763C (en) | 2001-01-18 | 2001-01-18 | Copper-based composition used as electric contacts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01103263 CN1109763C (en) | 2001-01-18 | 2001-01-18 | Copper-based composition used as electric contacts |
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| Publication Number | Publication Date |
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| CN1305017A true CN1305017A (en) | 2001-07-25 |
| CN1109763C CN1109763C (en) | 2003-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 01103263 Expired - Fee Related CN1109763C (en) | 2001-01-18 | 2001-01-18 | Copper-based composition used as electric contacts |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100413993C (en) * | 2006-10-20 | 2008-08-27 | 西安理工大学 | Cu-La2O3/Al2O3 composite material and its preparing method |
| CN100497690C (en) * | 2007-11-22 | 2009-06-10 | 昆明贵金属研究所 | Multiphase oxide particles enhanced copper-base composite material and preparing method thereof |
| CN101698911B (en) * | 2009-10-23 | 2011-02-16 | 李�浩 | Copper-aluminium-base electric contact composite material |
| CN101979694A (en) * | 2010-11-25 | 2011-02-23 | 福达合金材料股份有限公司 | Voltage-withstanding silver tungsten carbide graphite contact material and preparation method thereof |
| CN101335102B (en) * | 2007-06-29 | 2011-03-30 | 上海宝钢工业检测公司 | Copper based material for electric contact element |
| CN102097220A (en) * | 2011-02-23 | 2011-06-15 | 西安建筑科技大学 | Cu-La2O3 contact material and preparation method thereof |
| CN102259188A (en) * | 2011-07-20 | 2011-11-30 | 温州银泰合金材料有限公司 | Method for producing high-energy rare earth powder alloy electrical contact material |
| CN102628117A (en) * | 2012-04-25 | 2012-08-08 | 苏州天兼金属新材料有限公司 | Nano-modification copper alloy bar used in aerospace industry, and preparation method thereof |
| CN105695789A (en) * | 2016-04-08 | 2016-06-22 | 苏州捷德瑞精密机械有限公司 | Nontoxic welding-resistant electrical contact composite and preparation method thereof |
-
2001
- 2001-01-18 CN CN 01103263 patent/CN1109763C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100413993C (en) * | 2006-10-20 | 2008-08-27 | 西安理工大学 | Cu-La2O3/Al2O3 composite material and its preparing method |
| CN101335102B (en) * | 2007-06-29 | 2011-03-30 | 上海宝钢工业检测公司 | Copper based material for electric contact element |
| CN100497690C (en) * | 2007-11-22 | 2009-06-10 | 昆明贵金属研究所 | Multiphase oxide particles enhanced copper-base composite material and preparing method thereof |
| CN101698911B (en) * | 2009-10-23 | 2011-02-16 | 李�浩 | Copper-aluminium-base electric contact composite material |
| CN101979694A (en) * | 2010-11-25 | 2011-02-23 | 福达合金材料股份有限公司 | Voltage-withstanding silver tungsten carbide graphite 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 |
| CN102259188A (en) * | 2011-07-20 | 2011-11-30 | 温州银泰合金材料有限公司 | Method for producing high-energy rare earth powder alloy electrical contact material |
| CN102259188B (en) * | 2011-07-20 | 2013-06-12 | 温州银泰合金材料有限公司 | Method for producing high-energy rare earth powder alloy electrical contact material |
| CN102628117A (en) * | 2012-04-25 | 2012-08-08 | 苏州天兼金属新材料有限公司 | Nano-modification copper alloy bar used in aerospace industry, and preparation method thereof |
| CN102628117B (en) * | 2012-04-25 | 2013-09-11 | 苏州天兼金属新材料有限公司 | Nano-modification copper alloy bar used in aerospace industry, and preparation method thereof |
| CN105695789A (en) * | 2016-04-08 | 2016-06-22 | 苏州捷德瑞精密机械有限公司 | Nontoxic welding-resistant electrical contact composite and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1109763C (en) | 2003-05-28 |
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