CN108997021A - A kind of trolleybus carbon sliding block material - Google Patents

A kind of trolleybus carbon sliding block material Download PDF

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Publication number
CN108997021A
CN108997021A CN201810942440.7A CN201810942440A CN108997021A CN 108997021 A CN108997021 A CN 108997021A CN 201810942440 A CN201810942440 A CN 201810942440A CN 108997021 A CN108997021 A CN 108997021A
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Prior art keywords
sliding block
molybdenum disulfide
carbon
carbon fiber
magnesium stearate
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CN201810942440.7A
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Chinese (zh)
Inventor
母益强
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Chengdu Yi Kai Peng Electric Carbon Co Ltd
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Chengdu Yi Kai Peng Electric Carbon Co Ltd
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Priority to CN201810942440.7A priority Critical patent/CN108997021A/en
Publication of CN108997021A publication Critical patent/CN108997021A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/71Ceramic products containing macroscopic reinforcing agents
    • C04B35/78Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
    • C04B35/80Fibres, filaments, whiskers, platelets, or the like
    • C04B35/83Carbon fibres in a carbon matrix
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/422Carbon
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/422Carbon
    • C04B2235/425Graphite
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/48Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Composite Materials (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

In view of the problems of the existing technology the present invention provides a kind of trolleybus carbon sliding block material, including carbon sliding block base stock, molybdenum disulfide-carbon fiber mixture, and magnesium stearate, wherein, the weight of the molybdenum disulfide-carbon fiber mixture, magnesium stearate and the carbon sliding block base stock are as follows: molybdenum disulfide-carbon fiber mixture 2-10, magnesium stearate 0.5-5, carbon sliding block base stock 70-140;Wherein, the carbon sliding block base stock includes: petroleum coke, artificial graphite, natural graphite and pitch, the weight of the petroleum coke, artificial graphite, natural graphite and pitch are as follows: petroleum coke 15-30, artificial graphite 20-40, natural graphite 25-30, pitch 25-45.Carbon sliding block material intensity of the invention is good, wear-resisting, pressure-resistant, stable, lubricity is good, easy mold release, and environmental suitability is high, and machining property is good, and electric conductivity, heating conduction are good, long service life, and has good physics, mechanics, chemical property.

Description

A kind of trolleybus carbon sliding block material
Technical field
The present invention relates to electric car third sliding block materials to belong to city more particularly to a kind of trolleybus carbon sliding block material City's rail traffic accessories field.
Background technique
Trolleybus (Trolleybus) is a kind of usually by overhead contact line power supply, motor drive, does not depend on fixation The public traffic tool of rail running.Some countries (such as Japan), trolleybus belongs to the scope of rail traffic. Just because trolleybus has both the advantage and disadvantage of both road car and rail traffic, so that it becomes a kind of present age controversial friendship Logical tool.
The vehicle body of trolleybus and chassis are generally identical as way-train, but roof needs to install a pair by electric pole, is used for By electricity and current path is formed from a pair of of touching line of contact net.Generally, trolleybus can then be run out of steam by electric pole off-line; And be equipped with the dual-powered trolley bus of power accumulator, supercapacitor or diesel-driven generator, then it can be in not aerial contact Realize offline traveling in the section of net
Trolleybus contacts during high-speed cruising, through carbon sliding block with third rail, since trolleybus runs speed Degree is fastly and therefore the factor of long-play has high requirement to electric conductivity, the abrasion resistance and hardness of carbon sliding block.At present For trolleybus with the research of carbon sliding block almost without existing carbon sliding block is mostly powder metallurgy carbon sliding block, due to powder Metallurgical sliding material is hard, coefficient of friction is big, and itself material property serious to path wear is be easy to cause in operational process Fall side, phenomena such as chip off-falling, and phenomena such as be easy to cause parking and poor electric conductivity, and also it is on the high side.Therefore, the present invention mentions For a kind of magnetic suspension train carbon sliding block material, carbon sliding block material greasy property, conductive aspect are completely excellent sliding in powder metallurgy Plate reduces the coefficient of friction between carbon sliding block and track, does not wear substantially to track, caused by solving in train travelling process Fall side chip off-falling problem, and increases the electric conductivity of carbon sliding block.
Summary of the invention
Primary and foremost purpose of the invention is to provide a kind of trolleybus carbon sliding block for the above-mentioned problems of the prior art Material, carbon sliding block material intensity of the invention is good, wear-resisting, pressure-resistant, stable, lubricity is good, easy mold release, and environmental suitability is high, machine Tool processing performance is good, and electric conductivity, heating conduction are good, long service life, and has good physics, mechanics, chemically Energy.
To achieve the purpose of the present invention, the present invention provides a kind of trolleybus carbon sliding block material, including carbon sliding block is basic Raw material, molybdenum disulfide-carbon fiber mixture and magnesium stearate, wherein the molybdenum disulfide-carbon fiber mixture with it is described The weight of magnesium stearate are as follows: molybdenum disulfide-carbon fiber mixture 2-10, magnesium stearate 0.5-5.
Wherein, in the molybdenum disulfide-carbon fiber mixture molybdenum disulfide and carbon fiber weight are as follows: curing Tungsten 0.5-5, carbon fiber 2-8.
In particular, the weight of molybdenum disulfide and carbon fiber is preferred in the molybdenum disulfide-carbon fiber mixture are as follows: Molybdenum disulfide 2-4, carbon fiber 3-6.
It is especially the weight of molybdenum disulfide and carbon fiber in the molybdenum disulfide-carbon fiber mixture are as follows: two Tungsten sulfide 2.5-3, carbon fiber 4.5-5.
In particular, the molybdenum disulfide is black solid powder, partial size is 100-200 mesh.
Especially, the partial size of the molybdenum disulfide is preferably 200 mesh.
Molybdenum disulfide greasy property is good, and coefficient of friction is low, and compression strength is big, and it is negative to can be used for high temperature, high pressure, high revolving speed, height Lubrication under lotus, high vacuum condition increases the wearability of product, improves the environmental suitability of carbon sliding block material, extends and uses the longevity Life.
In particular, the length of the carbon fiber is 2-5cm.
Especially, the length of the carbon fiber is preferably 3-5cm.
Wherein, the carbon fiber be a kind of phosphorus content 95% or more high intensity, high modulus fibre tencel material Material.It is to be piled up by organic fibers such as flake graphites along fiber axial direction, is obtained through carbonization and graphitization processing The microcrystalline graphite material arrived.It not only has the strong tensile property of carbon material, and has both the soft machinability of textile fabric, It is reinforcing fiber of new generation.Because its with light and strong, light the performances such as rigid, high temperature resistant, corrosion-resistant, endurance so that carbon fiber Addition can increase the wear-resisting property of carbon sliding block material, increase its intensity, the environmental suitability for improving carbon sliding block material simultaneously prolongs Its long service life.
In particular, the magnesium stearate is white powder, it is fluffy;Magnesium stearate thermal stability is good, and lubricity is good, and price is low Honest and clean, small toxicity, processing performance is good, and the addition of magnesium stearate can increase stability, the lubricity of carbon sliding block material, and mechanical Processing performance.
Wherein, the molybdenum disulfide-carbon fiber mixture, magnesium stearate and the carbon sliding block base stock parts by weight match Than are as follows: molybdenum disulfide-carbon fiber mixture 2-10, magnesium stearate 0.5-5, carbon sliding block base stock 70-140.
In particular, the parts by weight of the molybdenum disulfide-carbon fiber mixture, magnesium stearate and the carbon sliding block base stock Proportion is preferred are as follows: molybdenum disulfide-carbon fiber mixture 5-12, magnesium stearate 2-4, carbon sliding block base stock 87-140.
Especially, the parts by weight of the molybdenum disulfide-carbon fiber mixture, magnesium stearate and the carbon sliding block base stock Proportion is preferred are as follows: molybdenum disulfide-carbon fiber mixture 5-10, magnesium stearate 2-3, carbon sliding block base stock 87-123.
In particular, the parts by weight of the molybdenum disulfide-carbon fiber mixture, magnesium stearate and the carbon sliding block base stock Proportion is preferred are as follows: molybdenum disulfide-carbon fiber mixture 7-10, magnesium stearate 2.5-3, carbon sliding block base stock 105-123.
Especially, the parts by weight of the molybdenum disulfide-carbon fiber mixture, magnesium stearate and the carbon sliding block base stock Proportion is preferred are as follows: molybdenum disulfide-carbon fiber mixture 5-8, magnesium stearate 2-2.5, carbon sliding block base stock 87-105.
Wherein, the carbon sliding block base stock includes: petroleum coke, artificial graphite, natural graphite and pitch.
In particular, the weight of the petroleum coke, artificial graphite, natural graphite and pitch are as follows: petroleum coke 15-30, Artificial graphite 20-40, natural graphite 25-30, pitch 25-45.
Especially, the granularity of the petroleum coke is 300 ± 20 mesh, moisture≤1%, ash content≤1%.
Petroleum coke of the present invention selects the ripe coke of low-sulfur.
Petroleum coke of the present invention has the characteristics that heat-resisting, wear-resisting, stable friction factor, loss are low, therefore the addition of petroleum coke Heat resistance, the wearability of carbon sliding block material can be improved, improve the coefficient of friction of carbon sliding block material, and reduce its loss.
In particular, the granularity of the natural graphite is 40-60 mesh, carbon content >=99%, ash content≤1%.
Especially, the granularity of the artificial graphite is 300 mesh, carbon content >=99%, ash content≤1%.
Natural graphite and artificial graphite have light weight, conduct electricity very well, good heat conductivity, greasy property are good, it is mechanical plus The advantages that work function admirable, the electric conductivity, heating conduction and greasy property of carbon sliding block material can be improved, and increases carbon sliding block The machining property of material.
Natural graphite and artificial graphite of the invention is preferably crystalline flake graphite.
In particular, the pitch is mid temperature pitch, softening point is 65-90 DEG C.
Mid temperature pitch is tar distillation raffinate part, and yield accounts for the 54-56% of tar, it be by tricyclic more than aromatic series Compound and oxygen-containing, nitrogenous, sulfur heterocyclic compound and a small amount of macromolecule carbonaceous material composition, pitch of the present invention play binder and make With.
Especially, the molybdenum disulfide-carbon fiber mixture, magnesium stearate and the petroleum coke, artificial graphite, natural stone Ink and pitch weight are as follows: molybdenum disulfide-carbon fiber mixture 2-10, magnesium stearate 0.5-5, petroleum coke 15-30, Artificial graphite 20-40, natural graphite 25-30, pitch 25-45.
In particular, molybdenum disulfide-the carbon fiber mixture, magnesium stearate and the petroleum coke, artificial graphite, natural stone The weight of ink and pitch are as follows: molybdenum disulfide-carbon fiber mixture 5-12, magnesium stearate 2-4, petroleum coke 25-40, people Make graphite 15-30, natural graphite 12-20, pitch 35-50.
Especially, the molybdenum disulfide-carbon fiber mixture, magnesium stearate and the petroleum coke, artificial graphite, natural stone Ink and pitch weight it is preferred are as follows: molybdenum disulfide-carbon fiber mixture 5-10, magnesium stearate 2-3, petroleum coke 25-35, Artificial graphite 15-25, natural graphite 12-18, pitch 35-45.
In particular, molybdenum disulfide-the carbon fiber mixture, magnesium stearate and the petroleum coke, artificial graphite, natural stone The weight of ink and pitch is preferred are as follows: molybdenum disulfide-carbon fiber mixture 7-10, magnesium stearate 2.5-3, petroleum coke 30- 35, artificial graphite 20-25, natural graphite 15-18, pitch 40-45.
Especially, the molybdenum disulfide-carbon fiber mixture, magnesium stearate and the petroleum coke, artificial graphite, natural stone The weight of ink and pitch are as follows: molybdenum disulfide-carbon fiber mixture 5-8, magnesium stearate 2-2.5, petroleum coke 25-30, people Make graphite 15-20, natural graphite 12-35, pitch 35-40.
Carbon sliding block material of the present invention has the following advantages that and advantageous effects:
1, carbon sliding block material intensity of the invention is good, wear-resisting, pressure-resistant, stable, lubricity is good, easy mold release, environmental suitability Height, machining property is good, and electric conductivity, heating conduction are good, long service life, and has good physics, mechanics, change Learn performance.
2, carbon sliding block material of the present invention selects molybdenum disulfide as additive, since molybdenum disulfide greasy property is good, friction Coefficient is low, and compression strength is big, and the lubrication that can be used under high temperature, high pressure, high revolving speed, high load capacity, high vacuum condition increases product Wearability improves the environmental suitability of carbon sliding block material, prolongs the service life.
3, carbon sliding block material of the present invention selects carbon fiber as additive, since it is with light and strong, light and rigid, resistance to height It is strong to increase it so that the addition of carbon fiber can increase the wear-resisting property of carbon sliding block material for the performances such as warm, corrosion-resistant, endurance Degree improves the environmental suitability of carbon sliding block material and prolongs its service life.
4, carbon sliding block material of the present invention selects magnesium stearate as lubricant, increases stability, the lubrication of carbon sliding block material Property and machining property.
5, the present invention selects petroleum coke, natural graphite, artificial graphite and pitch as carbon sliding block base stock, can be improved Heat resistance, the wearability of carbon sliding block material, electric conductivity, heating conduction improve the coefficient of friction of carbon sliding block material, and it is sliding to increase carbon The machining property of block of material simultaneously reduces its loss.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described, Obviously, the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all Belong to the scope of protection of the invention.
Embodiment 1
(1) it stocks up according to following weight: petroleum coke 30;Artificial graphite 20;Natural graphite 30;Pitch 35;Two sulphur Change 2.5 carbon fiber 4 of molybdenum;Magnesium stearate 2.5
(2) raw material mixes
Continuous heating is carried out to mixing kettle, when the temperature of mixing kettle reaches 120 DEG C, by petroleum coke, artificial graphite, natural Graphite, pitch, molybdenum disulfide, carbon fiber and magnesium stearate are added in mixing kettle, are stirred 2h, make it that powder uniformly be made The first mixture of last shape;
Then, when the temperature of heating kettle reaches 150 DEG C, pitch is added in just mixture, 1.5h is stirred, makes Uniformly powder-mixed material is made in it;
(3) compression process
Powdered mixture is placed in mold and carries out compression process, columned stock column is made;
(4) curing process
The stock column suppressed is placed in 100 DEG C of baking oven and carries out curing process, the processing time is 14h, keeps stock column Constant temperature;
(5) extrusion forming
Stock column after solidification is put into extrusion forming in extruder, obtains carbon sliding block material blank, setting squeezes temperature and is 170℃;
(6) calcination process
The carbon sliding block material blank of extrusion forming is put into roaster, roasts 15 days at 1030 DEG C to get sliding to carbon Block of material.
Embodiment 2
(1) it stocks up according to following weight: petroleum coke 30;Artificial graphite 20;Natural graphite 15;Pitch 40;Two sulphur Change molybdenum 4;Carbon fiber 4;Magnesium stearate 2
(2) raw material mixes
Continuous heating is carried out to mixing kettle, when the temperature of mixing kettle reaches 125 DEG C, by petroleum coke, artificial graphite, natural Graphite, pitch, molybdenum disulfide, carbon fiber and magnesium stearate are added in mixing kettle, are stirred 2.3h, it is made uniformly Powdered just mixture;
Then, when the temperature of heating kettle reaches 145 DEG C, pitch is added in just mixture, 1.2h is stirred, makes Uniformly powder-mixed material is made in it;
(3) compression process
Powdered mixture is placed in mold and carries out compression process, columned stock column is made;
(4) curing process
The stock column suppressed is placed in 105 DEG C of baking oven and carries out curing process, the processing time is 16h, keeps stock column Constant temperature;
(5) extrusion forming
Stock column after solidification is put into extrusion forming in extruder, obtains carbon sliding block material blank, setting squeezes temperature and is 175℃;
(6) calcination process
The carbon sliding block material blank of extrusion forming is put into roaster, roasts 16 days at 1010 DEG C to get sliding to carbon Block of material.
Physical property detection is carried out to obtained carbon sliding block material, the results are shown in Table 1:
1 embodiment 1-2 carbon sliding block material physical property testing result of table
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks Domain is included within the scope of the present invention.

Claims (10)

1. a kind of trolleybus carbon sliding block material, including carbon sliding block base stock, which is characterized in that further include:
Molybdenum disulfide-carbon fiber mixture and magnesium stearate;
Wherein, the weight of the molybdenum disulfide-carbon fiber mixture and the magnesium stearate are as follows: molybdenum disulfide-carbon fiber Tie up mixture 2-10, magnesium stearate 0.5-5.
2. trolleybus as described in claim 1 carbon sliding block material, which is characterized in that the molybdenum disulfide-carbon fiber is mixed Close object, magnesium stearate and the carbon sliding block base stock weight are as follows: molybdenum disulfide-carbon fiber mixture 2-10, firmly Fatty acid magnesium 0.5-5, carbon sliding block base stock 70-140.
3. trolleybus as claimed in claim 2 carbon sliding block material, which is characterized in that the carbon sliding block base stock packet It includes: petroleum coke, artificial graphite, natural graphite and pitch.
4. trolleybus as claimed in claim 3 carbon sliding block material, which is characterized in that the petroleum coke, artificial graphite, day The weight of right graphite and pitch are as follows: petroleum coke 15-30, artificial graphite 20-40, natural graphite 25-30, pitch 30-50.
5. trolleybus as claimed in claim 4 carbon sliding block material, which is characterized in that the molybdenum disulfide-carbon fiber is mixed Close the weight of object, magnesium stearate and the petroleum coke, artificial graphite, natural graphite and pitch are as follows: molybdenum disulfide-carbon fiber Tie up mixture 2-10, magnesium stearate 0.5-5, petroleum coke 15-30, artificial graphite 20-40, natural graphite 25-30, pitch 25-45.
6. trolleybus as claimed in claim 5 carbon sliding block material, which is characterized in that the molybdenum disulfide-carbon fiber is mixed Close the weight of molybdenum disulfide and carbon fiber in object are as follows: molybdenum disulfide 0.5-5, carbon fiber 2-8.
7. trolleybus as claimed in claim 4 carbon sliding block material, which is characterized in that the molybdenum disulfide-carbon fiber is mixed Close the weight of object, magnesium stearate and the petroleum coke, artificial graphite, natural graphite and pitch are as follows: molybdenum disulfide-carbon fiber Tie up mixture 5-12, magnesium stearate 2-4, petroleum coke 25-40, artificial graphite 15-30, natural graphite 12-20, pitch 35-50.
8. trolleybus as claimed in claim 4 carbon sliding block material, which is characterized in that the molybdenum disulfide-carbon fiber is mixed Close the weight of object, magnesium stearate and the petroleum coke, artificial graphite, natural graphite and pitch are as follows: molybdenum disulfide-carbon fiber Tie up mixture 5-10, magnesium stearate 2-3, petroleum coke 25-35, artificial graphite 15-25, natural graphite 12-18, pitch 35-45.
9. trolleybus as claimed in claim 4 carbon sliding block material, which is characterized in that the molybdenum disulfide-carbon fiber is mixed Close the weight of object, magnesium stearate and the petroleum coke, artificial graphite, natural graphite and pitch are as follows: molybdenum disulfide-carbon fiber Tie up mixture 7-10, magnesium stearate 2.5-3, petroleum coke 30-35, artificial graphite 20-25, natural graphite 15-18, pitch 40-45.
10. trolleybus as claimed in claim 4 carbon sliding block material, which is characterized in that the molybdenum disulfide-carbon fiber is mixed Close the weight of object, magnesium stearate and the petroleum coke, artificial graphite, natural graphite and pitch are as follows: molybdenum disulfide-carbon fiber Tie up mixture 5-8, magnesium stearate 2-2.5, petroleum coke 25-30, artificial graphite 15-20, natural graphite 12-35, pitch 35-40.
CN201810942440.7A 2018-08-17 2018-08-17 A kind of trolleybus carbon sliding block material Pending CN108997021A (en)

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CN107556019A (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 material
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JPS63125821A (en) * 1986-11-14 1988-05-30 Honda Motor Co Ltd Slide member
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CN107554304A (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
CN107556021A (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 material
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Application publication date: 20181214

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