CN1102664C - Pantograph slide-plate of composite carbon-copper material reinforced with continuous long carbon fiber - Google Patents
Pantograph slide-plate of composite carbon-copper material reinforced with continuous long carbon fiber Download PDFInfo
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- CN1102664C CN1102664C CN00111951A CN00111951A CN1102664C CN 1102664 C CN1102664 C CN 1102664C CN 00111951 A CN00111951 A CN 00111951A CN 00111951 A CN00111951 A CN 00111951A CN 1102664 C CN1102664 C CN 1102664C
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Abstract
The present invention relates to a method of making a pantograph slide-plate of composite carbon-copper material reinforced with continuous long carbon fiber. The method comprises the following steps: composite copper plating powder is used as substrate skeletal material, and the composite powder is composed of carbonaceous materials of graphite, coke, carbon black, etc. and metal powder; thermosetting resin is mixed with the composite powder for granulation; the continuous long carbon fiber is added to be used as a reinforcing agent during cold pressing; composite carbon-copper material reinforced with continuous long carbon fiber is prepared by hot pressing forming or heat extruding forming. The pantograph slide-plate made by the present invention has the advantages of good comprehensive performance, high impact resilience, high folding strength, good frictional wear performance and good conductive performance, and thus, the present invention can meet the requirements of electric locomotives for high-speed railways and rail traffics.
Description
Technical field:
The present invention relates to prescription and preparation method that a kind of new continuous long carbon fiber strengthens pantograph slide-plate of composite carbon-copper material, can be applicable in urban track traffic and the high-speed railway electric locomotive, belong to Department of Transportation's vehicle body fittings technical field.
Background technology:
The material that present electric locomotive pantograph sliding plate uses mainly contains mmaterial and carbonaceous material etc.It is matrix that the powder metallurgy slide plate adopts copper original washing powder material or iron-base powder, add other metal-powders and the non-metal powder compacting sintering forms, the physical strength height, wear resistance is good, and itself contains solid lubricant, lubricity is better than pure metal, but the powder metallurgy slide plate is very serious to the wearing and tearing of copper conductor, externally lubricates wearing and tearing aggravation when being difficult to guarantee, and in use easily produces electric arc, not only increase mechanical wear and arc wear, also disturbed tick.Initial use is the pure carbon slide plate in the carbonaceous sliding material; the pure carbon slide plate is very little to the pole line wearing and tearing, arc resistance, in use; can on contact line conducting wire, form one deck carbon film; protected contact line conducting wire effectively, simultaneously, it also has excellent contact stability; very little to radio signal interference; but pure carbon slide plate mechanical property is too poor, easily falls piece and fracture in the use, causes accident between pantograph.On carbon slide plate basis, developed novel impregnating metal carbon slide plate in the world again, wherein famous with the rub MY7D of root carbon element company of Britain.The work of domestic this respect starts from the eighties, begins service testing at the nineties initial stage, uses in some locomotive depots at present.Impregnating metal carbon slide plate is that used impregnating metal mainly contains elements such as copper, lead, tin, antimony, nickel with carbon base body impregnating metal under High Temperature High Pressure.Above-mentioned metal or alloy penetrates under pressure in the pore of carbon material, forms fine and closely woven reticulated structure in carbon base body, and this strength of materials, toughness and wear resistance are better than matrix carbon, and thermal conductivity and specific conductivity are higher, and contact resistance is little.But this slide plate complex process, cost is higher, and than serious many of pure carbon slide plate, and shock resistance is poor to the wearing and tearing of copper contact line conducting wire.
Publication number is that the patent of invention of CN1178745A is described with short carbon fiber enhanced carbon-carbon composite pantograph pan, efficiently solve slide plate itself and to the problem of copper conductor serious wear, but Modern High-Speed railway and track traffic electric power locomotive are also had distance to high impact property and the high breaking strength that sliding material requires, and the resistivity of this sliding material is higher.
Summary of the invention:
The objective of the invention is to according to the existing problem of above-mentioned existing electric locomotive pantograph sliding plate, a kind of advanced composite material pantograph pan and manufacture method thereof are proposed, make it to have concurrently the high-mechanical property and the good lubricating property and the electroconductibility of copper graphite composite material of carbon fibre reinforcement, and improve its shock resistance and folding strength, can satisfy the demand of Modern High-Speed railway and track traffic electric power locomotive.
For realizing such goal of the invention, technical solution of the present invention is: adopt composite carbon-copper material reinforced with continuous long carbon fiber to make the track traffic electric power pantograph pan of locomotive, be substrate aggregate promptly with carbon-carbon/carbon-copper composite material, its main ingredient can comprise copper, graphite, coke, carbonaceous materials such as carbon black, plumbous, metal-powders such as tin and binding agent etc., make toughener with continuous long carbon fiber, to cold pressing behind the raw material thorough mixing, in cold pressure procedure, add continuous long carbon fiber, and then carry out hot pressing or hot extrusion processing, obtain required use for electric locomotive composite carbon-copper material reinforced with continuous long carbon fiber pantograph pan.
Composite powder used in the present invention is to be formed by various component mixing granulations such as metals such as carbonaceous materials such as graphite, coke, carbon black and lead, tin and binding agents, behind this composite powder copper facing or the copper alloy as the substrate aggregate of sliding material.In carbon-carbon/carbon-copper composite material as substrate aggregate, the metallographic structure of copper or copper alloy is network-like, and uniform distribution, given full play to the electroconductibility of copper, the conductivity body material more direct than copper facing carbon dust and the mixed system of binding agent of matrix material is greatly improved, and can gives full play to the lubricity of graphite and be easy to keep the stable of slide plate performance.In carbon-copper material as matrix, the content of copper is generally between 20%～65%, the content of slicker solder is between 0～20%, the granularity of powder is more than 30 orders, and used continuous long carbon fiber diameter is less than 20 μ m, and length is not more than slide plate length, can be asphaltic base or PAN-based carbon fiber, also can be celion, its weight content be between 0.05%～10%, and carbon fiber is distributed in matrix in the plane perpendicular to the relatively sliding direction.As the material available heat thermosetting resin of binding agent, as phenol series, epoxy series, chaff ketone series etc.These binding agents can be used alone, but also also mix together, and consumption is generally between 3%～25%.Getting graphite in the carbonaceous powder is 70%～90%, and coke is 10%～20%, and carbon black is 0～10%.
Each components contents of the present invention all is weight percentage, by adjusting the different sliding material of each components contents availability.
The manufacturing process of composite carbon-copper material reinforced with continuous long carbon fiber pantograph pan of the present invention is for colding pressing-hot pressing (or hot extrusion).Add carbon fiber when colding pressing, the pressure of colding pressing is not less than 50MPa, dwell time is no less than 10 seconds, carry out hot pressing after the coldmoulding again, hot pressing pressure is not less than 100MPa, and hot pressing temperature is looked the different and different of binder content and kind with the dwell time, and general hot pressing temperature is not less than 100 ℃, dwell time is no less than 2 minutes, and the temperature of hot extrusion is not less than 100 ℃.
Embodiment:
Further specify technical scheme of the present invention below in conjunction with several specific embodiments.
Embodiment 1:
Copper facing composite powder cupric 35%, Graphite Powder 99 35%, coke powder 4%, carbon powder 4%, plumbous 3%, tin 3%, resol 12% was colded pressing under 100MPa pressure 60 seconds behind the mixing granulation, added 4% pretreated continuous carbon fibre in the charging of colding pressing on request, 270MPa pressure, 150 ℃～160 ℃ following hot pressing 5 minutes, the slide plate density of making was 2.38g/cm after the moulding
3, resistivity is 5.0 μ Ω m, Charpy's impact value is 0.88J/cm
2This slide plate can be used for catenary erection standard height, requires emphatically the little occasion of contact line conducting wire wearing and tearing.
Embodiment 2:
Copper facing composite powder cupric 42%, Graphite Powder 99 40%, coke powder 5%, resol 10%, get 3% pretreated continuous carbon fibre, under 150Mpa, colded pressing 30 seconds, when colding pressing, carbon fiber is joined in the briquetting, 245MPa/140 ℃ of following hot pressing 7 minutes, the slide plate density of making was 2.54g/cm then
3, resistivity is 8.5 μ Ω m, Charpy's impact value is 1.33J/CM
2It is better that this slide plate can be used for the contact system condition, slide plate had the occasion of certain mechanical property requirement.
Embodiment 3:
Copper facing composite powder cupric 30%, Graphite Powder 99 40%, coke powder 10%, carbon powder 2%, resol 15% is got 3% pretreated continuous carbon fibre, adds when colding pressing, and pressurize is 1 minute under 100MPa, hot pressing 10 minutes under 130 ℃, 200MPa then.The slide plate density of making is 2.72g/cm
3, resistivity is 10.7 μ Ω m, Charpy's impact value is up to 2.46J/cm
2This slide plate can be used for mechanical property is required high, fireballing occasion.
The use for electric locomotive composite carbon-copper material reinforced with continuous long carbon fiber pantograph pan of the present invention's preparation has excellent shock resistance, folding strength and excellent friction polishing machine and conductivity, wearing and tearing to copper contact wire are very little, are the sliding materials of high comprehensive performance that present any sliding material is beyond one's reach.
Claims (4)
1, a kind of composite carbon-copper material reinforced with continuous long carbon fiber pantograph pan, it is characterized in that with the copper facing composite powder be substrate aggregate, wherein copper content is 20%～65%, slicker solder content is 0～20%, thermosetting resin is 3%～25%, all the other are the carbonaceous powder of being made up of 70%～90% graphite, 10%～20% coke, 0～10% carbon black, and adopt 0.05%～10% long carbon fiber as toughener, and each component concentration all is weight percentage.
2, a kind of as the said composite carbon-copper material reinforced with continuous long carbon fiber pantograph pan of claim 1, it is characterized in that said continuous long carbon fiber diameter is less than 20 μ m, length is not more than slide plate length, can be asphaltic base or PAN-based carbon fiber, also can be celion.
3, a kind of preparation technology of the composite carbon-copper material reinforced with continuous long carbon fiber pantograph pan according to claim 1, it is characterized in that adding when colding pressing behind the raw material thorough mixing continuous long carbon fiber, the pressure of colding pressing is not less than 50MPa, dwell time was not less than 10 seconds, carry out hot pressing after colding pressing again, hot pressing pressure is not less than 100MPa, and hot pressing temperature is more than 120 ℃, and the dwell time is no less than 2 minutes.
4, a kind of preparation technology as the said composite carbon-copper material reinforced with continuous long carbon fiber pantograph pan of claim 3 carries out hot extrusion again after it is characterized in that raw material colded pressing and handles, and extrusion temperature is not less than 100 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00111951A CN1102664C (en) | 2000-03-10 | 2000-03-10 | Pantograph slide-plate of composite carbon-copper material reinforced with continuous long carbon fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00111951A CN1102664C (en) | 2000-03-10 | 2000-03-10 | Pantograph slide-plate of composite carbon-copper material reinforced with continuous long carbon fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1265429A CN1265429A (en) | 2000-09-06 |
| CN1102664C true CN1102664C (en) | 2003-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00111951A Expired - Fee Related CN1102664C (en) | 2000-03-10 | 2000-03-10 | Pantograph slide-plate of composite carbon-copper material reinforced with continuous long carbon fiber |
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| CN (1) | CN1102664C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438229C (en) * | 2006-07-28 | 2008-11-26 | 许晓华 | Electrical brush |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326152C (en) * | 2005-07-08 | 2007-07-11 | 山东大学 | Pantograph sliding plate of assorted fibre reinforced composite material and preparing method thereof |
| CN100342054C (en) * | 2005-12-30 | 2007-10-10 | 东北大学 | Pantograph slip plate for electric locomotive and mfg. method thereof |
| CN100396510C (en) * | 2006-01-09 | 2008-06-25 | 孙积海 | Pure carbon slide plate for pantograph and its producing method |
| CN102310777A (en) * | 2010-07-09 | 2012-01-11 | 新汶矿业集团有限责任公司协庄煤矿 | Rolling current collector for overhead line electric locomotive |
| CN102059339B (en) * | 2010-12-09 | 2012-07-11 | 北京科技大学 | Method for preparing copper based pantograph pan material |
| CN102311273B (en) * | 2011-06-09 | 2012-08-22 | 苏州东南碳制品有限公司 | Carbon fiber reinforced pantograph carbon sliding plate and manufacturing method thereof |
| CN104384515B (en) * | 2014-10-22 | 2016-10-19 | 福建国福中亚电气机械有限公司 | A kind of preparation method of pantograph graphite-based slide plate |
| CN107557605A (en) * | 2016-06-30 | 2018-01-09 | 苏州东南佳新材料股份有限公司 | A kind of impregnating metal material of magnetic suspension train carbon sliding block |
| CN107556026A (en) * | 2016-06-30 | 2018-01-09 | 苏州东南佳新材料股份有限公司 | A kind of preparation method of magnetic suspension train carbon sliding block material |
| CN107556022A (en) * | 2016-06-30 | 2018-01-09 | 苏州东南佳新材料股份有限公司 | A kind of preparation method of magnetic suspension train carbon sliding block material |
| CN107556018A (en) * | 2016-06-30 | 2018-01-09 | 苏州东南佳新材料股份有限公司 | A kind of preparation method of magnetic suspension train carbon sliding block composite |
| CN107556020A (en) * | 2016-06-30 | 2018-01-09 | 苏州东南佳新材料股份有限公司 | A kind of preparation method of magnetic suspension train carbon sliding block composite |
| CN107556025A (en) * | 2016-06-30 | 2018-01-09 | 苏州东南佳新材料股份有限公司 | A kind of magnetic suspension train carbon sliding block |
| CN107617748B (en) * | 2017-08-30 | 2019-07-05 | 昆明理工大学 | A kind of preparation method of copper/graphite sliding material |
| CN107739208B (en) * | 2017-11-09 | 2021-01-22 | 安徽锦美碳材科技发展有限公司 | Method for preparing carbon pantograph slider material of high-speed locomotive |
| CN109079129A (en) * | 2018-09-03 | 2018-12-25 | 大同新成新材料股份有限公司 | A kind of preparation process of copper-base powder metallurgy pantograph pan |
| CN109251051B (en) * | 2018-09-14 | 2020-01-14 | 西南交通大学 | Carbon nanofiber reinforced pantograph composite carbon sliding plate and preparation method thereof |
| CN110117760B (en) * | 2019-06-24 | 2020-12-22 | 湖南东映碳材料科技有限公司 | Preparation method of high-thermal-conductivity continuous fiber Cf/Cu composite material |
| CN111519063A (en) * | 2020-06-08 | 2020-08-11 | 江西省科学院应用物理研究所 | Method for preparing Cu-Fe alloy by adopting copper scraps and scrap iron |
| CN117403090B (en) * | 2023-12-13 | 2024-02-27 | 电子科技大学 | Graphene modified copper-based carbon locomotive pantograph slide plate and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1186030A (en) * | 1997-10-07 | 1998-07-01 | 宝山钢铁(集团)公司 | Carbon-carbon composite slipper cube for trolley bus |
-
2000
- 2000-03-10 CN CN00111951A patent/CN1102664C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1186030A (en) * | 1997-10-07 | 1998-07-01 | 宝山钢铁(集团)公司 | Carbon-carbon composite slipper cube for trolley bus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438229C (en) * | 2006-07-28 | 2008-11-26 | 许晓华 | Electrical brush |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1265429A (en) | 2000-09-06 |
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