CN1311476C - Sliding plate for pantograph of power locomotive and its mfg. method - Google Patents
Sliding plate for pantograph of power locomotive and its mfg. method Download PDFInfo
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- CN1311476C CN1311476C CNB2005100167477A CN200510016747A CN1311476C CN 1311476 C CN1311476 C CN 1311476C CN B2005100167477 A CNB2005100167477 A CN B2005100167477A CN 200510016747 A CN200510016747 A CN 200510016747A CN 1311476 C CN1311476 C CN 1311476C
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Abstract
The present invention relates to a slide plate for an electric locomotive pantograph and a manufacturing method thereof. The slide plate comprises a carbon basal body composed of 10 to 60 portions of petroleum coke powder, 5 to 40 portions of pitch coke powder, 3 to 30 portions of graphite powder, 5 to 30 portions of refining carbon and 10 to 55 portions of modified pitch. The manufacturing method comprises the steps: after calcined, the petrol coke powder, the pitch coke powder and the graphite powder are respectively spheroidized and uniformly mixed with the refining carbon into paste materials in a dry mixing way and a wet mixing way, the particle size of the petrol coke powder and the pitch coke powder is from 0.075 to 3MM, the particle size of the graphite powder is from 0.5 to 2MM, the paste materials are extruded and shaped to be the carbon basal body calcined and immersed into melted pitch and calcined again, and then the basal body is cooled and processed by a machine on surfaces. The slide plate has good mechanical property and conductivity, the abrasion to a contact wire is reduced, the service life of the contact wire is prolonged, and the cost is reduced.
Description
Affiliated technical field
The present invention relates to a kind of block of bow collector of electric locomotive slide plate that is used for railway, urban track traffic, belong to vehicle body fittings.
Background technology
The pantograph slide plate is the important current collection element in the locomotive power supply system., with the contacting of slide plate and the netting twine of transmitting electricity the electric current on the power transmission network is guided by pantograph, be transferred to the locomotive electric power system and keep electric locomotive and normally move.Because block of bow collector of electric locomotive is a frictional fit with slide plate and power transmission network lead, pantograph directly relates to reliability of operation and economic problems with the wearing and tearing of slide plate to the power transmission network lead.
Present block of bow collector of electric locomotive mainly is metal material, powdered metallurgical material and metal-impregnated carbon material with the material that slide plate uses.(1) metal slider.The metal slider of using the sixties in 20th century is to adopt materials such as copper, aluminium, steel to make.Its feature is that mechanical strength height, current collection capacity are big, resistance to wear and conductivity are better.Because slide plate and lead material are approaching, and be strong with contact wire affinity, adds its no self-lubricating property, thus very serious to the contact lead abrasion, be only applicable to the extra high occasion of requirement of strength.(2) powder metallurgy slide plate.The powder metallurgy slide plate is to be fundamental component with the metal dust, adds some lubricated compositions, by mechanical mixture, utilizes the hydraulic press compression molding, then with the blank high temperature sintering, and dip lubrication oil behind the sintering, last machine work moulding.Its advantage is the mechanical strength height, and good impact resistance has preferably conductivity, resistance to wear good.Galvano-cautery is less, and long service life is generally ten thousand kilometers of 3.5-7.But it has following shortcoming: at first powder metallurgy copper base slide plate since after pyrolytic semlting its hardness and intensity high, in service on actual track, wearing and tearing to contact wire are quite big, and also corresponding lubricious strip to be installed in use, but because the accuracy to size and the installation accuracy of lubricated batten self can't be consistent with copper base slide plate, cause lubricated inhomogeneous, so to the wearing and tearing maximum of contact wire.In general, the 2-3 copper conductor will suffer heavy wear.Secondly powder metallurgy copper base slide plate is because intensity and extreme hardness, when high-speed cruising with circuit in the bump of some hard spot in, can produce very strong impulsive force in the hard spot district, cause hard spot to worsen, and the loosening and displacement of the interface that makes contact wire, circuit is caused latent defect.Powder metallurgy copper base slide plate is arranged again owing to be Metal Substrate, be in operation and produce electric arc owing to factors such as roadbed and turning can cause the off-line phenomenon, and copper base slide plate part is dissolved produce bead molten be bonded at lead and slide plate from one's body, cause more hard spot and irregular plate face and quicken wearing and tearing lead.(3) metal-impregnated carbon slide.Metal-impregnated carbon slide is to make carbon slide plate blank earlier, and impregnated with molten metal in blank forms hard mesh skeleton then, thereby reaches the purpose that improves slide plate intensity, resistance to impact, resistance to wear and increase the service life.Though metal-impregnated carbon slide obviously reduces the wearing and tearing of lead, only be the latter's about 1/4th, still apparent in view to the damage of lead.It also occurs falling the piece phenomenon easily in addition, scrapes the bow fault, damaged line.The complex manufacturing of metal-impregnated carbon slide is arranged again, and equipment investment is big, and the cost of material height causes the manufacturing cost height.In addition, in use need shaping, cause maintenance cost also higher.
Some representational documents about slide plate were arranged again since nineteen nineties.Publication number is that to have introduced with the copper facing carbon dust be basis material to the patent of invention of CN1178745A, CN1184794A, CN1186030A, adopt chopped carbon fiber as reinforcing material, and be binding agent with thermosetting resin, carry out hot pressing or extruding, make the technology of resin solidification moulding then.Publication number is that the patent of invention of CN1468891A has been introduced with electrolytic copper powder and graphite as basis material, does reinforcing material with chopped carbon fiber, with resistivity and the intensity that the copper fiber is regulated material, makees binding agent with phenolic resins, the technology of compression molding.These technical literatures show that at first patented product remains the extension of metal-impregnated carbon slide, still can't fundamentally solve the disadvantage of metal-impregnated carbon slide.Secondly the hot compression molding technology that adopts can't be produced the slide plate of whole chi, can only adopt the mode of assembly unit during use, cause it can't adapt to China's contact wire and mostly be mixed frame, the hard contact of stringing actual conditions how, splicing structure is damaged easily and hits under such condition and splits.Have copper facing carbon dust, the chopped carbon fiber of employing to do the reinforcing material complex process again, equipment investment is big, the cost of material height, and cost is too high.The phenolic resins of Cai Yonging is made binding agent in addition, and its heat resistance is poor, is not suitable for the needs of train high-speed cruising.
Summary of the invention
The purpose of this invention is to provide a kind of block of bow collector of electric locomotive slide plate and manufacture method thereof, this slide plate has good mechanical performance, electric conductivity, self-lubricant anti-friction performance, and this slide plate can reduce can reduce cost to the wearing and tearing of contact wire and destruction.
Technical scheme of the present invention is: a kind of block of bow collector of electric locomotive slide plate, comprise carbon basal body, and it is characterized in that: this carbon basal body is made up of following components in weight percentage:
Petroleum coke powder 35-60 part pitch coke powder 5-10 part graphite powder 3-15 part
Modified carbon 5-30 part modified coal tar pitch 28-55 part
Each component preferred weight proportioning of carbon basal body of the present invention can be:
Petroleum coke powder 35-45 part pitch coke powder 5-10 part graphite powder 5-15 part
Modified carbon 10-20 part modified coal tar pitch 30-40 part
Each component optimum weight proportioning of carbon basal body of the present invention can be:
Petroleum coke powder 35-40 part pitch coke powder 5-10 part graphite powder 10-15 part
Modified carbon 13-17 part modified coal tar pitch 28-30 part
Described modified carbon is that pitch adds toluene class organic solvent under 400-700 ℃ of condition, separates the carbonaceous mesophase spherules that obtains.Described modified coal tar pitch is the product that pitch obtains through oxidation processes, and the carbon residue rate is pitch total weight 50-60%, and Coal Chemical Industry company is one of main unit that produces this modified coal tar pitch in day Tianjin Railway Bureau.Modified coal tar pitch is made adhesive and is used in present technique.
Making described block of bow collector of electric locomotive with the method for slide plate is:
1, the carbon basal body of forming sliding board
A, to select granularity be petroleum coke powder and the pitch coke powder of 0.075-3mm,
B, to select degree of graphitization be that 70-95%, granularity are the graphite powder of 0.5-2mm,
C, with spheroidising 0.1-1 hour respectively of petroleum coke powder, pitch coke powder, graphite powder,
D, then add modified carbon under 80-160 ℃ of temperature conditions dried be mixed even,
E, add modified coal tar pitch again, under 120-180 ℃ of temperature conditions wet mixing to thickener uniformly,
F, thickener is sent into extruder, extrusion modling goes out carbon basal body, squeeze pressure 60kg/cm
2, 100-130 ℃ of extruder temperature.
2, make slide plate
G, carbon basal body is put into the baking furnace sintering, insulation is 2 hours under 600-1200 ℃ of temperature,
Carbon basal body behind h, the sintering places the pitch of impregnation tank impregnated with molten, and pressure is 0.5-1.2MPa, and the time is more than or equal to 15 hours,
I, carry out the calcination process second time after going out jar, insulation is 2 hours in 600-800 ℃ of temperature range, and roasting time is more than 240 hours for the second time,
J, product surface mechanical process.
Petroleum coke powder in the slide plate component of the present invention and pitch coke powder are the main basis material among the present invention, with carbon fiber, copper, cross materials such as copper, graphite powder and compare, price is very cheap, through after the calcination process higher hardness is arranged, and has excellent conducting performance simultaneously again; Graphite powder is as another kind of basis material, because therefore conducting electricity very well of itself can further improve the electric conductivity of slide plate, again because soft its shock resistance that can improve slide plate of graphite; Petroleum coke powder, pitch coke powder, graphite powder have adopted the spheroidising technology, spheroidising can guarantee the homogeneity of each position performance of product on the one hand, can disperse and absorb the energy because of the bump generation in service on the other hand preferably, further improve its impact strength; Modified carbon is one of basis material, and it is under 400-700 ℃ of condition pitch to be handled, and the carbonaceous mesophase spherules that obtains utilizes its characteristic after heat treatment to obtain higher density and hardness, thereby improves the combination property of slide plate; It has higher carbon residue rate as binding agent to adopt modified coal tar pitch, in last handling process, can obtain higher density, its structure and basis material are more approaching, the cracking phenomena that the difference owing to material thermal expansion coefficient of can avoiding being in operation takes place, it becomes carbon after roasting in addition, thereby has good heat resistance; Slide plate carbon basal body after the roasting is the pitch of impregnated with molten again, can reduce the porosity of slide plate like this, reaches the purpose of sealing of hole and waterproof, increases the useful life under the overcast and rainy wet weather, and the molten asphalt of dipping becomes carbon after the roasting second time.Because forming the material of slide plate is the carbon element material entirely, material itself is exactly good lubricant, self-lubricating property and anti-attrition performance are good, little to contact wire wear, electromagnetic noise is little during slip, and high temperature resistant, is difficult for and contact wire generation weldering phenomenon, full carbon slide plate can form one deck carbon film on lead when rubbing with copper contact wire, improved the abrasion situation of lead greatly; Because the raw material that adopts has good thermoplasticity, thereby can realize that therefore continuous hot extrusion molding mode obtains whole chi product.
The present technique characteristics are that slide plate is full carbon materials, and slide plate has good mechanical performance and electric conductivity, and its self-lubricating property and anti-attrition performance are little to the wearing and tearing of contact wire, have fundamentally solved the disadvantage of containing metal or metal-impregnated carbon slide.In addition because slide plate can be made the structure of whole chi compares with the slide plate of splicing structure in the past and more adapt to the many actual conditions of the hard contact of contact wire, thereby can reduce damage or hit and split the fault that causes, prolong the useful life of contact wire.Because it is cheap to constitute the material price of slide plate, the related equipment investment of production technology is few, so can reduce product cost.
Embodiment 1
Press following weight portion proportion ingredient:
3 parts of 5 parts of graphite powders of 60 parts of pitch coke powders of petroleum coke powder
55 parts of 5 parts of modified coal tar pitches of modified carbon
The method of production slide plate of the present invention is as follows:
Petroleum coke after will calcining earlier and pitch coke are broken into petroleum coke powder and the pitch coke powder that granularity is 0.075-3mm, calcining heat 600-1300 ℃, choosing degree of graphitization is that 70-95%, granularity are the graphite powder of 0.5-2mm, choose modified carbon, petroleum coke powder, pitch coke powder, graphite powder are distinguished spheroidising 0.1-1 hour, then with modified carbon under temperature 80-160 ℃ condition dried be mixed even, add modified coal tar pitch again, wet mixing is to uniform thickener under temperature 120-180 ℃ condition, send into extruder, 100-130 ℃ of extruder temperature, pressure 60kg/cm
2, extrude whole chi carbon basal body, carbon basal body is put into the baking furnace sintering, gradually heat up, at 600-1200 ℃ of insulation 2 hours, natural cooling, carbon basal body is placed the pitch of impregnation tank impregnated with molten, pressure is 0.5-1.2MPa again, 15 hours time, carry out the calcination process second time after going out jar, the used time is 240 hours, and insulation is 2 hours under the highest 600-800 ℃ temperature, make the pitch of dipping become carbon, after the cooling, the machining surface processed is produced the slide plate goods.
Embodiment 2
Press following weight portion proportion ingredient:
3 parts of 5 parts of graphite powders of 60 parts of pitch coke powders of petroleum coke powder
45 parts of 30 parts of modified coal tar pitches of modified carbon
The method of producing the present embodiment slide plate is identical with the production method of embodiment 1.
Embodiment 3
Press following weight portion proportion ingredient:
15 parts of 10 parts of graphite powders of 35 parts of pitch coke powders of petroleum coke powder
28 parts of 12 parts of modified coal tar pitches of modified carbon
The method of producing the present embodiment slide plate is identical with the production method of embodiment 1.
Claims (4)
1, a kind of block of bow collector of electric locomotive slide plate comprises carbon basal body, it is characterized in that: this carbon basal body is made up of following components in weight percentage:
Petroleum coke powder 35-60 part pitch coke powder 5-10 part graphite powder 3-15 part
Modified carbon 5-30 part modified coal tar pitch 28-55 part.
2, according to the said a kind of block of bow collector of electric locomotive slide plate of claim 1, it is characterized in that: each composition weight proportioning of carbon basal body is:
Petroleum coke powder 35-45 part pitch coke powder 5-10 part graphite powder 5-15 part
Modified carbon 10-20 part modified coal tar pitch 30-40 part.
3, according to the said a kind of block of bow collector of electric locomotive slide plate of claim 1, it is characterized in that: each composition weight proportioning of carbon basal body is:
Petroleum coke powder 35-40 part pitch coke powder 5-10 part graphite powder 10-15 part
Modified carbon 13-17 part modified coal tar pitch 28-30 part.
4, a kind of method of making the described block of bow collector of electric locomotive of claim 1 with slide plate is characterized in that:
A, to select granularity be petroleum coke powder and the pitch coke powder of 0.075-3mm,
B, to select degree of graphitization be that 70-95%, granularity are the graphite powder of 0.5-2mm,
C, with spheroidising 0.1-1 hour respectively of petroleum coke powder, pitch coke powder, graphite powder,
D, then add modified carbon under 80-160 ℃ of temperature conditions dried be mixed even,
E, add modified coal tar pitch again, under 120-180 ℃ of temperature conditions wet mixing to thickener uniformly,
F, thickener is sent into extruder, squeeze pressure is 60kg/cm
2, holding temperature is 100-130 ℃, extrusion modling goes out carbon basal body,
G, carbon basal body is put into the baking furnace sintering, insulation is 2 hours under 600-1200 ℃ of temperature, natural cooling,
Carbon basal body behind h, the sintering places the pitch of impregnation tank impregnated with molten, and pressure is 0.5-1.2MPa, and the time is more than or equal to 15 hours,
I, carry out the calcination process second time after going out jar, insulation is 2 hours under 600-800 ℃ of temperature, and roasting time is more than 240 hours for the second time,
J, product surface mechanical process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100167477A CN1311476C (en) | 2005-04-21 | 2005-04-21 | Sliding plate for pantograph of power locomotive and its mfg. method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100167477A CN1311476C (en) | 2005-04-21 | 2005-04-21 | Sliding plate for pantograph of power locomotive and its mfg. method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1687995A CN1687995A (en) | 2005-10-26 |
| CN1311476C true CN1311476C (en) | 2007-04-18 |
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| CNB2005100167477A Expired - Fee Related CN1311476C (en) | 2005-04-21 | 2005-04-21 | Sliding plate for pantograph of power locomotive and its mfg. method |
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Families Citing this family (18)
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| CN100457681C (en) * | 2006-11-07 | 2009-02-04 | 中钢集团吉林炭素股份有限公司 | High conductive high strength graphite brick for ultralarge blast furnace, its production technology and application |
| CN102034561B (en) * | 2010-10-09 | 2015-09-02 | 北京航空航天大学 | Carbon base sliding block material for track vehicle and preparation method thereof |
| CN102432293B (en) * | 2011-09-26 | 2012-10-03 | 邢台驰宇电碳有限责任公司 | Electric locomotive pantograph carbon slide plate |
| CN103159495B (en) * | 2011-12-08 | 2014-09-24 | 苏州东南碳制品有限公司 | Carbon fiber reinforced pantograph carbon slide plate material and manufacturing method thereof |
| CN102898143B (en) * | 2012-09-04 | 2014-05-07 | 天津锦美碳材科技发展有限公司 | Preparation method for carbon slider used for assembling pantograph of electric locomotive |
| 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 |
| CN103864429B (en) * | 2014-03-21 | 2016-03-02 | 天津锦美碳材科技发展有限公司 | A kind of railway locomotive Material for Pantograph Slide |
| CN104774012B (en) * | 2015-04-29 | 2016-07-13 | 四川理工学院 | The production method of block of bow collector of electric locomotive leaching copper carbon slipper |
| CN105236983B (en) * | 2015-10-20 | 2018-05-01 | 大同新成新材料股份有限公司 | A kind of method for preparing high-speed train pantograph slide plate carbon slipper of adopting new technology |
| CN105819858A (en) * | 2016-05-19 | 2016-08-03 | 大同新成新材料股份有限公司 | Preparation method of pantograph carbon slider |
| CN107856541B (en) * | 2017-11-09 | 2020-09-01 | 重庆懿虹科技发展有限责任公司 | Preparation method of main carbon strip structure of pantograph carbon slide plate |
| CN108515170A (en) * | 2018-03-29 | 2018-09-11 | 大同新成新材料股份有限公司 | A kind of preparation process of novel high-performance pantograph material |
| CN108892508A (en) * | 2018-06-28 | 2018-11-27 | 大同新成新材料股份有限公司 | A kind of use for electric locomotive pantograph carbon slide preparation method |
| CN108973691A (en) * | 2018-07-17 | 2018-12-11 | 大同新成新材料股份有限公司 | A kind of preparation process of copper carbon composite pantograph carbon slide |
| CN109020545A (en) * | 2018-08-13 | 2018-12-18 | 大同新成新材料股份有限公司 | A kind of pantograph pan and preparation method thereof |
| CN109338145B (en) * | 2018-11-30 | 2020-01-31 | 大同新成新材料股份有限公司 | Preparation method of pantograph carbon slide plate composite materials |
| CN109851385B (en) * | 2019-01-25 | 2021-01-26 | 西南交通大学 | Hydroxyl-functionalized carbon nanotube-reinforced pantograph slide plate and preparation method thereof |
| CN116425545A (en) * | 2023-03-20 | 2023-07-14 | 国家高速列车青岛技术创新中心 | Carbon sliding plate material without binder and preparation method thereof |
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