CN102031440B - Modified copper-based pantograph sliding material and preparation method - Google Patents
Modified copper-based pantograph sliding material and preparation method Download PDFInfo
- Publication number
- CN102031440B CN102031440B CN2011100049048A CN201110004904A CN102031440B CN 102031440 B CN102031440 B CN 102031440B CN 2011100049048 A CN2011100049048 A CN 2011100049048A CN 201110004904 A CN201110004904 A CN 201110004904A CN 102031440 B CN102031440 B CN 102031440B
- Authority
- CN
- China
- Prior art keywords
- slide plate
- copper
- alc
- raw materials
- pantograph slide
- 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 - Fee Related
Links
Images
Landscapes
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention relates to a modified copper-based pantograph sliding material and a preparation method. The material contains raw materials of Cu, Ti2AlC, BN and graphite in a volume ratio of (60-95) to (1-30) to (1-10) to (1-5). The method comprises the following steps of: mixing the four raw materials and putting the mixture in a steel die; firstly carrying out cold pressing to the mixture, putting the mixture in a high-temperature furnace under the protection atmosphere of hydrogen, increasing the temperature to 700-900 DEG C, keeping the temperature for 5-30 min, taking out a sample and carrying out cold pressing; then, secondarily sintering at 800-900 DEG C and keeping the temperature for 30-60 min. The invention has simple process, is convenient to operate, can rapidly prepare the modified copper-based pantograph sliding material by utilizing traditional production equipment, and the material has the advantages of excellent performance and lower cost.
Description
Technical field
The present invention relates to field of materials, particularly a kind of with use for electric locomotive New Material for Pantograph Slide and preparation method thereof.
Background technology
Slide plate is to be contained on the pantograph at electric locomotive top, directly contacts with the friction of electrical network lead, the electric current on the electrical network is introduced the contact conducting element of locomotive.Sliding material needs to satisfy or coordinate simultaneously the performance figure of the following aspects: electrical resistivity that (1) is low and contact resistance; (2) enough impact strength; (3) good wear, self-lubricating property; (4) certain resistance to abrasion; (5) good heat-resisting, arc resistance can; (6) certain economic property; (7) be convenient to moulding and realize lightweight.The research of pantograph pan and application facet, its material have mainly experienced evolutions such as simple metal slide plate, partial metallurgy slide plate, pure carbon slide plate, metal-impregnated carbon slide, metal matrix composite slide plate and inorganic non-metallic based composites slide plate.
Pantograph pan mainly contains three major types at present: partial metallurgy slide plate, pure carbon slide plate and metal-impregnated carbon slide.
Document 1 discloses a kind of " selecting for use of electric locomotive pantograph sliding plate " (wear spring in the air, Yu Mingchang. [J]. locomotive electric tramsmission, 1998; (3): 39-40] .); This pantograph pan is the partial metallurgy slide plate, has the mechanical strength height, good impact resistance; Electric conductivity, resistance to abrasion are preferably arranged, but it is more serious to the abrasion of contact line conducting wire.What in electric locomotive, use in a large number at present is the copper-base pantograph slide plate material.
Document 2 reports prepare the high carbon content copper-base pantograph slide plate with cold-rolled sintered powder metallurgy process and use material, and test its tensile strength and dynamic ductility (Guo Bin, golden Yongping; Zheng Ailong; Zhou Jian, copper-base pantograph slide plate Tensile strength and dynamic ductility research, material science and technology; 2003,11 (1): 59-63.).The result of its research shows: the pantograph material consist of m (Cu): m (C)=92%:8%, best tensile strength is 86MPa, dynamic ductility is 1.38J/cm
2
Friction behavior (the A.Senouci of document 3 present sliding material copper of research and graphite; J.Frene; H.Zaidi. Wear mechanism in graphite – copper electrical sliding contact.Wear, 1999, (225-229): 949-953.); Its result of study shows that the orientation of the friction face of its frictional behaviour and graphite has confidential relation, to the performance of sliding material hardness important influence particularly.
The method of a kind of copper-base pantograph slide plate preparation of document 4 (patent No. ZL01133723.0) report; This method is that matrix, graphite powder are antifriction composition with industrial electrolysis copper powder or copper alloy powder; Press forming after powder mixes prepares pantograph pan through oversintering and extrusion process again.Control through powder mixes technology; Be formed on well-distributed graphite granule in the copper matrix network; In sintering and extrusion process, further improve the binding ability of matrix and antifriction composition; Obtain the pantograph pan goods that mechanical and physical performance is excellent, antifriction effect is good, have raw material prepare simple, technological process is controlled easily, pollution-free, productive costs is low, can form the characteristics of production in enormous quantities.
Along with the high speed of railway, electrified development people to the slide plate demands for higher performance, many traditional slide plates have been not suitable for the requirement of New Times, therefore it is imperative to develop the new type slide plate material.Simple metal slide plate electrical resistivity is low, the resistance to compression shock resistance is strong, but very serious to the abrasion of lead, is eliminated gradually; Carbon is slide plate self insufficient strength, and electrical resistivity is big, and easy the fracture often caused accident between pantograph, influences railway operation; Though powdered metallurgical material is at present comparatively desirable, and is bigger to the abrasion of lead, cause the service life shortening of netting twine and the increase of maintenance cost.Continuous speed-raising along with railroad train; Original pantograph pan part can not satisfy the operating needs of present high speed and quasi high-speed locomotive; In order to solve the deficiency that above-mentioned slide plate exists, urgent need will be developed a kind of anti-electric arc, abrasion are little, electric conductivity strong, the slide plate of withstanding corrosion and excellent heat resistance is replaced original slide plate.These produce market potentiality and economic benefit are huge, not only are applied to ordinary train, also can be applied to new traffic tools such as subway, urban light rail.The major defect that uses at present sliding material is that the life-span is short, and performance reliability is poor, along with the continuous speed-raising of the speed of railway, the performance of Material for Pantograph Slide has also been proposed increasingly high requirement.This also presses for the development that a kind of novel pantograph material of exploitation satisfies high speed train.
By document 5 (Barsoum M W. The M
N+1AX
nPhases:A New Class of Solids; Thermodynamically Stable Nanolaminates [J]. Pro Solid Sta Chem; 2000; 28:201～206.) and document 6 (Barsoum M W, Ali M, El-Raghy T. Processing and Characterization of Ti
2AlC, Ti
2AlN and Ti
2AlC
0.5[J]. .Met. Mat Trans A, 2000,31 (7): 1857～1862.) can know Ti
2AlC is the found novel lamellar ternary compound of the sixties in last century; It is with the many advantages of metal with pottery, like conduction, the permeability of heat of excellence, processibility; Good survivability, high melting point, high-modulus, high strength and lower density (4.11 g/cm
3) etc.This is a kind of new structure/functional material that can be widely used in high-tech sectors such as electronic information, new forms of energy, aerospace.Even more important is that this material has good self-lubricating property under room temperature and high temperature, therefore can be used as good high-abrasive material.
BN is a kind of high melting point that has; High hardness, withstanding corrosion, sludgeproof characteristics have the excellent high-temperature lubrication performance simultaneously; It has a wide range of applications its crystal structure of what is more important and Ti in high-temperature structural material, wear-resisting, withstanding corrosion and electric material
2AlC is the same, is six side's laminar textures, and thermal expansion coefficient is close, therefore in slide plate, introduces the performance that an amount of BN particle will help to improve material, the composite material that obtained performance is excellent.
Summary of the invention
Technical matters to be solved by this invention is: a kind of excellent performance and lower-cost modification copper-base pantograph slide plate material are provided, a kind of method that can synthesize fast with easy to operate this material of preparation also is provided.
The present invention solves its technical matters and adopts following technical scheme:
Modification copper-base pantograph slide plate material provided by the invention, it contains Cu, Ti
2AlC, BN and graphite raw material, the volume ratio of four kinds of raw materials are V (Cu): V (Ti
2AlC): V (BN): V (C)=(60～95): (1～30): (1～10): (1～5).
Said modification copper-base pantograph slide plate material can be processed by following method: the steel mould of packing into after said four kinds of raw materials are mixed, and the 20 ~ 100MPa that colds pressing earlier places the high temperature furnace of hydrogen shield atmosphere again; Heating rate with 5 ~ 30 ℃/min rises to 700 ~ 900 ℃; Insulation 5 ~ 30min takes out sample afterwards and colds pressing behind 50 ~ 100MPa again, carries out double sintering; The double burned temperature is 800 ~ 900 ℃, and temperature retention time is 30 ~ 60min.
The preferred volume ratio of said four kinds of raw materials is V (Cu): V (Ti
2AlC): V (BN): V (C)=80:12:5:3.
The method of the above-mentioned modification copper-base pantograph slide plate of preparation provided by the invention material is a kind of through adding copper coated Ti
2AlC, BN and graphite material are being under the protective atmosphere with hydrogen, and employing normal pressure technology prepares the method for modification copper-base pantograph slide plate material, specifically: with Cu, Ti
2AlC, BN and graphite are raw material, and the volume ratio of four kinds of raw materials is n (Cu): n (Ti
2AlC): n (BN): n (C)=(60～95): (1～30): (1～10): (1～5), after these four kinds of raw materials mix, the steel mould of packing into; 20 ~ the 100MPa that colds pressing earlier places the high temperature furnace of hydrogen shield atmosphere, rises to 700 ~ 900 ℃ with the heating rate of 5 ~ 30 ℃/min; Be incubated 5 ~ 30 minutes, take out sample afterwards and cold pressing again behind 50 ~ 100MPa, carry out double sintering; The double burned temperature is 800 ~ 900 ℃, and temperature retention time is 30 ~ 60min.
The electroplate liquid formulation of the electroless copper that the present invention adopts can for:
Main salt: Roman vitriol (CuSO
4) 1 ~ 10%
Complexing agent: disodium ethylene diamine tetraacetate (C
10H
14N
2Na
2O
3) 0.5 ~ 3%
Stabilizer: 2,2 '-dipyridine (C
10H
8N
2) 0.5 ~ 2%
PH value conditioning agent: sodium hydroxide (NaOH) 1 ~ 5%
Deoxidation compound: 36% volume concentration formaldehyde (CH
2O) 2 ~ 8%
Deionized water (H
2O): 75 ~ 95%
Bath temperature: 70 ± 1 ℃,
PH value: 13 ± 0.1, with the NaOH adjustment,
Alr mode: electromagnetic agitation,
Plating time: 0.5 ~ 5h.
The present invention compared with prior art has following main advantage:
One of which. introduce conduction Ti
2The AlC material, it has many advantages of metal and pottery concurrently, like conduction, the permeability of heat of excellence, processibility, good survivability, high melting point, high-modulus, high strength and lower density (4.11 g/cm
3) etc.; Adopt the process system of copper coated technology and double sintering, make the modification copper-base pantograph slide plate material of preparation have fine and close structure (being higher than 99%) and excellent performance, reach the copper-base pantograph national standard.
They are two years old. adopt Ti
2AlC new material and BN material have solved traditional material not available characteristics, particularly Ti just
2The use of AlC material greatly improves the electric conductivity and the lubricity of pantograph material.
They are three years old. at material modified Ti
2The copper coating of AlC, BN and graphite powder, greatly improved copper and material modified between the shortcoming of compatibility difference, improved their anchoring strength.
They are four years old. and technology is simple, and the raw MAT'L that whole process of preparation is selected for use is simple, has made full use of the characteristics of new material, but need not too much to change existing equipment just synthetic excellent performance of at high speed and lower-cost modification copper-base pantograph slide plate material.
In a word, technology of the present invention is simple, and is easy to operate, need not too much to change existing equipment, and the performance of prepared modification copper-base pantograph slide plate material greatly improves than traditional copper base pantograph slide plate material, and preparation cost is lower.
Description of drawings
Fig. 1 is Ti
2Scanned photograph after the AlC copper facing.
Fig. 2 is the scanned photograph after the BN copper facing.
Fig. 3 is the scanned photograph after the graphite powder copper facing.
Below in conjunction with embodiment and accompanying drawing the present invention is described further.
Embodiment 1
Each composition is by weight being Wt (H in the plating bath
2O): Wt (CuSO
4): Wt (C
10H
14N
2Na
2O
3): Wt (C
10H
8N
2): Wt (NaOH): Wt (CH
2O)=and 94:2:0.5:0.5:1:2, plating 0.5 hour, intensifier after institute's plating and modifier powder and matrix copper are V (Cu) by volume: V (Ti
2AlC): V (BN): V (C)=65:25:8:2; Mix, add an amount of adhesive agent, put into steel mold, cold isostatic compaction; Pressure is 100MPa, under the hydrogen atmosphere protection, carries out sintering, and programming rate is 20 ℃/min, and sinter point is 750 ℃; Be incubated 30 minutes, take out sample afterwards, place in the mould, carry out secondary and cold pressing; Pressure is 150MPa, under the hydrogen atmosphere protection, carries out double sintering, and programming rate is 20 ℃/min; Sinter point is 850 ℃, is incubated 30 minutes, and the density of gained block shape modification copper-base pantograph slide plate material is 99.5%.
On the omnipotent test machine for mechanism of INSTRON-1195, record, the tensile strength of this material is 165 MPa, and dynamic ductility is 3.8J/cm
2, ball hardness is 88 HBS.Room temperature resistivity is 0.28 μ Ω .m.
Embodiment 2
Each composition is by weight being Wt (H in the plating bath
2O): Wt (CuSO
4): Wt (C
10H
14N
2Na
2O
3): Wt (C
10H
8N
2): Wt (NaOH): Wt (CH
2O)=and 90:3:1:1:2:3, plating 1 hour, intensifier after institute's plating and modifier powder and matrix copper are V (Cu) by volume: V (Ti
2AlC): V (BN): V (C)=70:20:6:4; Mix, add an amount of adhesive agent, put into steel mold, cold isostatic compaction; Pressure is 100MPa, under the hydrogen atmosphere protection, carries out sintering, and programming rate is 20 ℃/min, and sinter point is 750 ℃; Be incubated 30 minutes, take out sample afterwards, place in the mould, carry out secondary and cold pressing; Pressure is 150MPa, under the hydrogen atmosphere protection, carries out double sintering, and programming rate is 20 ℃/min; Sinter point is 850 ℃, is incubated 30 minutes, and the density of gained block shape modification copper-base pantograph slide plate material is 99.6%.
On the omnipotent test machine for mechanism of INSTRON-1195, record, the tensile strength of this material is 178 MPa, and dynamic ductility is 4.2J/cm
2, ball hardness is 85 HBS.Room temperature resistivity is 0.25 μ Ω .m.
Embodiment 3
Each composition is by weight being Wt (H in the plating bath
2O): Wt (CuSO
4): Wt (C
10H
14N
2Na
2O
3): Wt (C
10H
8N
2): Wt (NaOH): Wt (CH
2O)=and 90:2:1.5:1.5:3:2, plating 1 hour, intensifier after institute's plating and modifier powder and matrix copper are V (Cu) by volume: V (Ti
2AlC): V (BN): V (C)=75:15:7:3; Mix, add an amount of adhesive agent, put into steel mold, cold isostatic compaction; Pressure is 100MPa, under the hydrogen atmosphere protection, carries out sintering, and programming rate is 20 ℃/min, and sinter point is 750 ℃; Be incubated 30 minutes, take out sample afterwards, place in the mould, carry out secondary and cold pressing; Pressure is 150MPa, under the hydrogen atmosphere protection, carries out double sintering, and programming rate is 20 ℃/min; Sinter point is 850 ℃, is incubated 30 minutes, and the density of gained block shape modification copper-base pantograph slide plate material is 99.7%.
On the omnipotent test machine for mechanism of INSTRON-1195, record, the tensile strength of this material is 200 MPa, and dynamic ductility is 4.7J/cm
2, ball hardness is 82 HBS.Room temperature resistivity is 0.23 μ Ω .m.
Embodiment 4
Each composition is by weight being Wt (H in the plating bath
2O): Wt (CuSO
4): Wt (C
10H
14N
2Na
2O
3): Wt (C
10H
8N
2): Wt (NaOH): Wt (CH
2O)=and 85:4:3:1.5:3.5:3, plating 2 hours, intensifier after institute's plating and modifier powder and matrix copper are V (Cu) by volume: V (Ti
2AlC): V (BN): V (C)=80:10:5:5; Mix, add an amount of adhesive agent, put into steel mold, cold isostatic compaction; Pressure is 100MPa, under the hydrogen atmosphere protection, carries out sintering, and programming rate is 20 ℃/min, and sinter point is 750 ℃; Be incubated 30 minutes, take out sample afterwards, place in the mould, carry out secondary and cold pressing; Pressure is 150MPa, under the hydrogen atmosphere protection, carries out double sintering, and programming rate is 20 ℃/min; Sinter point is 850 ℃, is incubated 30 minutes, and the density of gained block shape modification copper-base pantograph slide plate material is 99.5%.
On the omnipotent test machine for mechanism of INSTRON-1195, record, the tensile strength of this material is 210 MPa, and dynamic ductility is 5.2J/cm
2, ball hardness is 76HBS.Room temperature resistivity is 0.18 μ Ω .m.
Embodiment 5
Each composition is by weight being Wt (H in the plating bath
2O): Wt (CuSO
4): Wt (C
10H
14N
2Na
2O
3): Wt (C
10H
8N
2): Wt (NaOH): Wt (CH
2O)=and 85:6:1:1.5:2.5:4, plating 3 hours, intensifier after institute's plating and modifier powder and matrix copper are V (Cu) by volume: V (Ti
2AlC): V (BN): V (C)=85:5:7:3; Mix, add an amount of adhesive agent, put into steel mold, cold isostatic compaction; Pressure is 100MPa, under the hydrogen atmosphere protection, carries out sintering, and programming rate is 20 ℃/min, and sinter point is 750 ℃; Be incubated 30 minutes, take out sample afterwards, place in the mould, carry out secondary and cold pressing; Pressure is 150MPa, under the hydrogen atmosphere protection, carries out double sintering, and programming rate is 20 ℃/min; Sinter point is 850 ℃, is incubated 30 minutes, and the density of gained block shape modification copper-base pantograph slide plate material is 99.8%.
On the omnipotent test machine for mechanism of INSTRON-1195, record, the tensile strength of this material is 232 MPa, and dynamic ductility is 5.5J/cm
2, ball hardness is 72HBS.Room temperature resistivity is 0.15 μ Ω .m.
Embodiment 6
Each composition is by weight being Wt (H in the plating bath
2O): Wt (CuSO
4): Wt (C
10H
14N
2Na
2O
3): Wt (C
10H
8N
2): Wt (NaOH): Wt (CH
2O)=and 80:8:2:2:3:5, plating 4 hours, intensifier after institute's plating and modifier powder and matrix copper are V (Cu) by volume: V (Ti
2AlC): V (BN): V (C)=90:5:3:2; Mix, add an amount of adhesive agent, put into steel mold, cold isostatic compaction; Pressure is 100MPa, under the hydrogen atmosphere protection, carries out sintering, and programming rate is 20 ℃/min, and sinter point is 750 ℃; Be incubated 30 minutes, take out sample afterwards, place in the mould, carry out secondary and cold pressing; Pressure is 150MPa, under the hydrogen atmosphere protection, carries out double sintering, and programming rate is 20 ℃/min; Sinter point is 850 ℃, is incubated 30 minutes, and the density of gained block shape modification copper-base pantograph slide plate material is 99.5%.
On the omnipotent test machine for mechanism of INSTRON-1195, record, the tensile strength of this material is 245 MPa, and dynamic ductility is 6.5J/cm
2, ball hardness is 68 HBS.Room temperature resistivity is 0.12 μ Ω .m.
Embodiment 7
Each composition is by weight being Wt (H in the plating bath
2O): Wt (CuSO
4): Wt (C
10H
14N
2Na
2O
3): Wt (C
10H
8N
2): Wt (NaOH): Wt (CH
2O)=and 75:10:3:2:4:6, plating 5 hours, intensifier after institute's plating and modifier powder and matrix copper are V (Cu) by volume: V (Ti
2AlC): V (BN): V (C)=92:4:2:2; Mix, add an amount of adhesive agent, put into steel mold, cold isostatic compaction; Pressure is 100MPa, under the hydrogen atmosphere protection, carries out sintering, and programming rate is 20 ℃/min, and sinter point is 750 ℃; Be incubated 30 minutes, take out sample afterwards, place in the mould, carry out secondary and cold pressing; Pressure is 150MPa, under the hydrogen atmosphere protection, carries out double sintering, and programming rate is 20 ℃/min; Sinter point is 850 ℃, is incubated 30 minutes, and the density of gained block shape modification copper-base pantograph slide plate material is 99.6%.
On the omnipotent test machine for mechanism of INSTRON-1195, record, the tensile strength of this material is 270 MPa, and dynamic ductility is 7.2J/cm
2, ball hardness is 63HBS.Room temperature resistivity is 0.08 μ Ω .m.
Accompanying drawing provided by the invention is Ti
2AlC, the scanned photograph after BN and the graphite powder copper facing.From figure, can see clearly that the particle of copper is obviously adhered on the surface of three kinds of materials that copper facing is later.Therefore the agglomeration of the particle showed different of three kinds of variable grains after copper facing when materials used, must carry out could preparing burden after fragmentation, the screening.
Claims (5)
1. a modification copper-base pantograph slide plate material is characterized in that said modification copper-base pantograph slide plate material contains Cu, Ti
2AlC, BN and graphite raw material, the volume ratio of four kinds of raw materials are V (Cu): V (Ti
2AlC): V (BN): V (C)=(60～95): (1～30): (1～10): (1～5);
Said modification copper-base pantograph slide plate material is processed by following method:
The steel mould of packing into after said four kinds of raw materials are mixed, the 20～100MPa that colds pressing earlier places the high temperature furnace of hydrogen shield atmosphere again; Heating rate with 5～30 ℃/min rises to 700～900 ℃; Insulation 5～30min takes out sample afterwards and colds pressing behind 50～100MPa again, carries out double sintering; The double burned temperature is 800～900 ℃, and temperature retention time is 30～60min.
2. modification copper-base pantograph slide plate material according to claim 1, the volume ratio that it is characterized in that said four kinds of raw materials are V (Cu): V (Ti
2AlC): V (BN): V (C)=80: 12: 5: 3.
3. a modification copper-base pantograph slide plate preparation methods is characterized in that a kind of through adding copper coated Ti
2AlC, BN and graphite material are being under the protective atmosphere with hydrogen, adopt normal pressure technology to prepare the method for modification copper-base pantograph slide plate material, and this method is: with Cu, Ti
2AlC, BN and graphite are raw material, and the volume ratio of four kinds of raw materials is n (Cu): n (Ti
2AlC): n (BN): n (C)=(60～95): (1～30): (1～10): (1～5), after these four kinds of raw materials mix, the steel mould of packing into; 20～the 100MPa that colds pressing earlier places the high temperature furnace of hydrogen shield atmosphere, rises to 700～900 ℃ with the heating rate of 5～30 ℃/min; Be incubated 5～30 minutes, take out sample afterwards and cold pressing again behind 50～100MPa, carry out double sintering; The double burned temperature is 800～900 ℃, and temperature retention time is 30～60min.
4. modification copper-base pantograph slide plate preparation methods according to claim 3 is characterized in that the electroplate liquid formulation of the electroless copper that this method adopts is:
Main salt: Roman vitriol 1～10%,
Complexing agent: disodium ethylene diamine tetraacetate 0.5～3%,
Stabilizer: 2,2 '-dipyridine 0.5～2%,
PH value conditioning agent: sodium hydroxide 1～5%,
Deoxidation compound: 36% volume concentration formaldehyde 2～8%,
Deionized water: 75～95%,
Bath temperature: 70 ± 1 ℃,
The pH value: 13 ± 0.1, with the NaOH adjustment,
Alr mode: electromagnetic agitation,
Plating time: 0.5～5h.
5. modification copper-base pantograph slide plate preparation methods according to claim 3, the volume ratio that it is characterized in that said four kinds of raw materials are n (Cu): n (Ti
2AlC): n (BN): n (C)=80: 12: 5: 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100049048A CN102031440B (en) | 2011-01-12 | 2011-01-12 | Modified copper-based pantograph sliding material and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100049048A CN102031440B (en) | 2011-01-12 | 2011-01-12 | Modified copper-based pantograph sliding material and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102031440A CN102031440A (en) | 2011-04-27 |
| CN102031440B true CN102031440B (en) | 2012-06-27 |
Family
ID=43884886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100049048A Expired - Fee Related CN102031440B (en) | 2011-01-12 | 2011-01-12 | Modified copper-based pantograph sliding material and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102031440B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302283A (en) * | 2013-05-28 | 2013-09-18 | 哈尔滨工业大学 | Ti3AlC2 reinforced bronze based brake pad material for high speed railway and preparation method thereof |
| CN104649700B (en) * | 2013-11-18 | 2017-02-15 | 苏州东南佳新材料股份有限公司 | Carbon contact strip of pantograph and manufacturing method thereof |
| FR3057504B1 (en) | 2016-10-17 | 2021-11-05 | Sncf Mobilites | PANTOGRAPH WEAR BAND AND PANTOGRAPH EQUIPPED WITH SUCH WEAR BAND |
| CN112296328B (en) * | 2020-09-24 | 2022-12-30 | 山东鲁银新材料科技有限公司 | Preparation method of railway pantograph slide plate |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032741C (en) * | 1993-08-24 | 1996-09-11 | 东新电碳厂 | Pantograph slide board of electric locomotive and its making method |
| JP3935285B2 (en) * | 1999-03-16 | 2007-06-20 | 財団法人鉄道総合技術研究所 | pantograph |
| CN1180905C (en) * | 2001-12-21 | 2004-12-22 | 昆明理工大学 | Manufacture of copper-base pantograph slide plate |
| CN101830723B (en) * | 2010-04-30 | 2012-08-22 | 湖南大学 | Method for preparing carbon/carbon composite material for pantograph pan |
-
2011
- 2011-01-12 CN CN2011100049048A patent/CN102031440B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102031440A (en) | 2011-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100464001C (en) | High-strength high-conductivity oxidation-resisting low-silver copper-base alloy and preparation thereof | |
| CN102031439A (en) | Copper-plated carbon nanotube reinforced pantograph pan material and preparation method thereof | |
| CN102031440B (en) | Modified copper-based pantograph sliding material and preparation method | |
| CN105543534B (en) | A kind of copper-based pantograph sliding material and preparation method thereof | |
| CN101492015A (en) | Reticular lamination carbon-copper composite material pantograph pan and manufacturing method | |
| CN103276237A (en) | Preparation method of copper and magnesium alloy contact wire for railway electrification | |
| CN111360243B (en) | High-performance self-lubricating copper-based pantograph slide plate material and preparation method thereof | |
| CN102206771A (en) | Pantograph slide composite material and preparation method thereof | |
| CZ20012039A3 (en) | Copper-graphite composite material, processes of its preparation, pantograph, electric power transmission system and apparatus for electric power transmission | |
| CN105274384A (en) | High-strength anti-wear copper-based composite material and preparation method thereof | |
| CN103320642A (en) | Preparation method of copper-silver alloy contact wire for trunk line electrification | |
| CN1180905C (en) | Manufacture of copper-base pantograph slide plate | |
| CN109468487B (en) | Tungsten carbide reinforced copper-based powder metallurgy friction material and preparation method thereof | |
| CN100523236C (en) | Special copper alloy and manufacturing method thereof | |
| CN101367278A (en) | Environment-friendly self-lubricating material | |
| CN105177346A (en) | Tungsten-copper electric contact material and preparation method thereof | |
| CN108907177A (en) | Copper based powder metallurgy friction material for high-speed train braking | |
| CN113275554A (en) | Copper-based powder metallurgy clutch friction plate for point switch and manufacturing method thereof | |
| CN106756213A (en) | A kind of copper-base material with high abrasive resistance and preparation method thereof | |
| CN106838079A (en) | A kind of extremely frigid zones bullet train brake pad metallurgical friction material | |
| CN109136605B (en) | Self-propagating synthesis of copper-based composite powder and application thereof | |
| CN109136606B (en) | Enhanced self-lubricating copper-based composite material and preparation method and application thereof | |
| CN109930021B (en) | Copper-based silicon dioxide composite material and preparation method thereof | |
| CN102002621A (en) | Carbon-based composite material for sliding block of current collector and preparation method thereof | |
| CN104831149A (en) | Cu/AlMgB14 composite material and preparation method thereof |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120627 Termination date: 20220112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |