CN107556013A - A kind of magnetic suspension train carbon sliding block material - Google Patents
A kind of magnetic suspension train carbon sliding block material Download PDFInfo
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- CN107556013A CN107556013A CN201610496545.5A CN201610496545A CN107556013A CN 107556013 A CN107556013 A CN 107556013A CN 201610496545 A CN201610496545 A CN 201610496545A CN 107556013 A CN107556013 A CN 107556013A
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- sliding block
- carbon sliding
- molybdenum disulfide
- calcium stearate
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Abstract
The problem of present invention exists for prior art provides a kind of magnetic suspension train carbon sliding block material, including carbon sliding block base stock, molybdenum disulfide mixture of glass fibers, and calcium stearate, wherein, the molybdenum disulfide mixture of glass fibers, the weight of calcium stearate and the carbon sliding block base stock are：Molybdenum disulfide mixture of glass fibers 3 12, calcium stearate 14, carbon sliding block base stock 70 140；Wherein, the carbon sliding block base stock includes：Petroleum coke, Delanium, native graphite and pitch, the petroleum coke, Delanium, the weight of native graphite and pitch are：Petroleum coke 20 40, Delanium 10 30, native graphite 10 20, pitch 30 50.The carbon sliding block material intensity of the present invention is good, it is wear-resisting, pressure-resistant, stably, lubricity it is good, easy mold release, environmental suitability is high, and machining property is good, and electric conductivity, heat conductivility are good, service life length, and with good physics, mechanics, chemical property.
Description
Technical field
The present invention relates to the rail carbon sliding block of magnetic suspension train the 3rd, more particularly to a kind of magnetic suspension train carbon sliding block material
Material, belongs to urban track traffic accessories field.
Background technology
Magnetic suspension train is a kind of modern high technology track vehicle, and it is realized between train and track by electromagnetic force
Contactless suspension and guiding, recycle the electromagnetic force tractor-trailer train of straight line to run.With the continuous increasing of national economic strength
The strong and improvement of people's living standards, it is necessary to improve the transport capacity of track traffic to adapt to economic development and people's livelihood needs, moral
The country such as state, Japan, U.S. has expanded the developmental research of magnetic suspension train, what Germany and Japan went it is bigger into
Just.At present, China has opened magnetic suspension train, and operational excellence on Shanghai, Changsha and other places.Because magnetic suspension train has
Quickly, low consumption, environmental protection, it is safe the advantages that, therefore prospect is very wide.Routine conductive maglev train is up to 400-500 kilometers/small
When, levitated superconducting magnet train is up to 500-600 kilometers/hour.
Magnetic suspension train contacts during high-speed cruising, by carbon sliding block with the 3rd rail, because magnetic suspension train is transported
Row very high speed, therefore, there is high requirement to the electric conductivity, wearability and hardness of carbon sliding block.Currently for magnetic suspension train
Almost do not have with the research of carbon sliding block, existing carbon sliding block is mostly powder metallurgy carbon sliding block, due to powder shaped charge liner material
Firmly, coefficient of friction is big, serious to path wear, and material property itself, and it is existing to easily cause side, chip off-falling etc. in running
As, and easily cause parking and phenomena such as electric conductivity difference, and it is on the high side.Therefore, the present invention provides a kind of magnetic suspension
Train carbon sliding block material, carbon sliding block material greasy property, conductive aspect are completely excellent in powder shaped charge liner, reduce carbon cunning
Coefficient of friction between block and track, track is not worn substantially, solve the problems, such as in train travelling process caused by fall side chip off-falling,
And increase the electric conductivity of carbon sliding block.
The content of the invention
The primary and foremost purpose of the present invention is to provide a kind of magnetic suspension train for the above-mentioned problems of the prior art to be slided with carbon
Block of material, carbon sliding block material intensity of the invention is good, it is wear-resisting, pressure-resistant, stably, lubricity it is good, easy mold release, environmental suitability is high,
Machining property is good, and electric conductivity, heat conductivility are good, service life length, and with good physics, mechanics, chemistry
Performance.
To realize the purpose of the present invention, the present invention provides a kind of magnetic suspension train carbon sliding block material, including carbon sliding block base
This raw material, molybdenum disulfide-mixture of glass fibers, and calcium stearate, wherein, the molybdenum disulfide-mixture of glass fibers
Weight with the calcium stearate is：Molybdenum disulfide-mixture of glass fibers 3-12, calcium stearate 1-4.
Wherein, the weight of molybdenum disulfide and glass fibre is in the molybdenum disulfide-mixture of glass fibers：Two
Molybdenum sulfide 1-4, glass fibre 2-8.
Particularly, the weight of molybdenum disulfide and glass fibre is excellent in the molybdenum disulfide-mixture of glass fibers
Elect as：Molybdenum disulfide 2-4, glass fibre 3-6.
Especially it is the weight of molybdenum disulfide and glass fibre in the molybdenum disulfide-mixture of glass fibers
For：Molybdenum disulfide 2.5-3, glass fibre 4.5-5.
Particularly, the molybdenum disulfide is black solid powder, and its particle diameter is 100-200 mesh.
Especially, the particle diameter of the molybdenum disulfide is preferably 200 mesh.
Molybdenum disulfide has good lubricity, and anti-wear performance is good, can play the increasing effect of rubbing at high temperature, therefore can carry
The anti-wear performance of high-carbon sliding block material；And the fusing point of molybdenum disulfide is high, suitable for high temperature, high pressure, high rotating speed high load capacity machine
Tool working condition, therefore addition molybdenum disulfide can also improve the environmental suitability of carbon sliding block material and extend its service life.
Particularly, the length of the glass fibre is 2-5cm.
Especially, the length of the glass fibre is preferably 3-5cm.
Wherein, the glass fibre is a kind of inorganic non-metallic material, heat-resist, and corrosion resistance is good, high mechanical strength,
Tensile strength is big, non-ignitable, anti-rotten and cheap, and the intensity of carbon sliding block material can be increased by adding stripping fiber, improved carbon and slided
The heat resistance of block of material, environmental suitability simultaneously extend its service life.
Particularly, the calcium stearate is white powder, fluffy；Calcium stearate heat endurance is good, and lubricity is good, and price is low
Honest and clean, small toxicity, processing characteristics is good, and the addition of calcium stearate can increase stability, the lubricity of carbon sliding block material, and machinery
Processing characteristics.
Wherein, the molybdenum disulfide-mixture of glass fibers, the parts by weight of calcium stearate and the carbon sliding block base stock
Match and be：Molybdenum disulfide-mixture of glass fibers 3-12, calcium stearate 1-4, carbon sliding block base stock 70-140.
Particularly, the molybdenum disulfide-mixture of glass fibers, the weight of calcium stearate and the carbon sliding block base stock
Part matches：Molybdenum disulfide-mixture of glass fibers 5-12, calcium stearate 2-4, carbon sliding block base stock 87-140.
Especially, the molybdenum disulfide-mixture of glass fibers, the weight of calcium stearate and the carbon sliding block base stock
Part matches：Molybdenum disulfide-mixture of glass fibers 5-10, calcium stearate 2-3, carbon sliding block base stock 87-123.
Particularly, the molybdenum disulfide-mixture of glass fibers, the weight of calcium stearate and the carbon sliding block base stock
Part matches：Molybdenum disulfide-mixture of glass fibers 7-10, calcium stearate 2.5-3, carbon sliding block base stock 105-123.
Especially, the molybdenum disulfide-mixture of glass fibers, the weight of calcium stearate and the carbon sliding block base stock
Part matches：Molybdenum disulfide-mixture of glass fibers 5-8, calcium stearate 2-2.5, carbon sliding block base stock 87-105.
Wherein, the carbon sliding block base stock includes：Petroleum coke, Delanium, native graphite and pitch.
Particularly, the weight of the petroleum coke, Delanium, native graphite and pitch is：Petroleum coke 20-40,
Delanium 10-30, native graphite 10-20, pitch 30-50.
Especially, the granularity of the petroleum coke is 300 ± 20 mesh, moisture≤1%, ash content≤1%.
Petroleum coke of the present invention selects ripe Jiao 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, improves the coefficient of friction of carbon sliding block material, and reduces its loss.
Particularly, the granularity of the native graphite is 40-60 mesh, carbon content >=99%, ash content≤1%.
Especially, the granularity of the Delanium is 300 mesh, carbon content >=99%, ash content≤1%.
Native graphite and Delanium 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, heat conductivility and greasy property of carbon sliding block material can be improved, and increase carbon sliding block
The machining property of material.
The native graphite and Delanium of the present invention is preferably crystalline flake graphite.
Particularly, the pitch is mid temperature pitch, and softening point is 65-90 DEG C.
Mid temperature pitch is tar distillation raffinate part, and yield accounts for the 54-56% of tar, and it is by aromatic series more than three rings
Compound and oxygen-containing, nitrogenous, sulfur heterocyclic compound and a small amount of macromolecule carbonaceous material composition, pitch of the present invention play binding agent and made
With.
Especially, the molybdenum disulfide-mixture of glass fibers, calcium stearate and the petroleum coke, Delanium, natural
The weight of graphite and pitch is：Molybdenum disulfide-mixture of glass fibers 3-12, calcium stearate 1-4, petroleum coke 20-40,
Delanium 10-30, native graphite 10-20, pitch 30-50.
Particularly, the molybdenum disulfide-mixture of glass fibers, calcium stearate and the petroleum coke, Delanium, natural
The weight of graphite and pitch is：Molybdenum disulfide-mixture of glass fibers 5-12, calcium stearate 2-4, petroleum coke 25-40,
Delanium 15-30, native graphite 12-20, pitch 35-50.
Especially, the molybdenum disulfide-mixture of glass fibers, calcium stearate and the petroleum coke, Delanium, natural
The weight of graphite and pitch is preferably：Molybdenum disulfide-mixture of glass fibers 5-10, calcium stearate 2-3, petroleum coke
25-35, Delanium 15-25, native graphite 12-18, pitch 35-45.
Particularly, the molybdenum disulfide-mixture of glass fibers, calcium stearate and the petroleum coke, Delanium, natural
The weight of graphite and pitch is preferably：Molybdenum disulfide-mixture of glass fibers 7-10, calcium stearate 2.5-3, petroleum coke
30-35, Delanium 20-25, native graphite 15-18, pitch 40-45.
Especially, the molybdenum disulfide-mixture of glass fibers, calcium stearate and the petroleum coke, Delanium, natural
The weight of graphite and pitch is：Molybdenum disulfide-mixture of glass fibers 5-8, calcium stearate 2-2.5, petroleum coke 25-
30th, Delanium 15-20, native graphite 12-15, pitch 35-40.
Carbon sliding block material of the present invention has the following advantages that and advantageous effects：
1st, carbon sliding block material intensity of the invention is good, it is wear-resisting, pressure-resistant, stably, lubricity it is good, easy mold release, environmental suitability
Height, machining property is good, and electric conductivity, heat conductivility are good, service life length, and with good physics, mechanics, change
Learn performance.
2nd, carbon sliding block material selection molybdenum disulfide of the present invention is as additive, because molybdenum disulfide has lubrication well
Property, anti-wear performance is good, and fusing point is high, suitable for high temperature, high pressure, the machine work state of high rotating speed high load capacity, therefore can improve
The anti-wear performance of carbon sliding block material, environmental suitability simultaneously extend its service life.
3rd, carbon sliding block material of the present invention selects glass fibre as additive, because it has light and strong, light and firm, resistance to height
The performance such as warm, corrosion-resistant, endurance, therefore the anti-wear performance of carbon sliding block material can be increased, increase its intensity, improve carbon sliding block
The environmental suitability of material simultaneously extends its service life.
4th, carbon sliding block material selection calcium stearate of the present invention increases the stability of carbon sliding block material, lubricated as lubricant
Property, and machining property.
5th, present invention selection petroleum coke, native graphite, Delanium and pitch can improve as carbon sliding block base stock
Heat resistance, the wearability of carbon sliding block material, electric conductivity, heat conductivility, the coefficient of friction of carbon sliding block material is improved, increases carbon and slides
The machining property of block of material simultaneously reduces its loss.
Embodiment
Invention is illustrated with reference to embodiments.Advantages of the present invention and feature will be with description and it is more clear
Chu.But these embodiments are only exemplary, do not form any restrictions to the scope of the present invention.Those skilled in the art should
Understand, the details and form of technical solution of the present invention can be modified without departing from the spirit and scope of the invention
Or replace, but these modifications and replacement are each fallen within protection scope of the present invention.
Embodiment 1
(1) stocked up according to following weight
(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, Delanium, natural
Graphite, pitch, molybdenum disulfide, glass fibre and calcium stearate are added in mixing kettle, are stirred 2h, it is uniformly made
Powdered just compound；
Then, when the temperature of heating kettle reaches 150 DEG C, pitch is added in just compound, 1.5h is stirred, makes
Uniformly powder-mixed material is made in it；
(3) compression process
Powdered compound is placed in mould 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, processing time 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 extrusion temperature is
170℃；
(6) calcination process
The carbon sliding block material blank of extrusion forming is put into roaster, is calcined 15 days at 1030 DEG C, that is, obtains carbon cunning
Block of material.
Physical property detection is carried out to obtained carbon sliding block material, the results are shown in Table 1.
Embodiment 2
(1) stocked up according to following weight
(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, Delanium, natural
Graphite, pitch, molybdenum disulfide, glass fibre and calcium stearate are added in mixing kettle, are stirred 2.3h, make it uniformly, system
Obtain powdered just compound；
Then, when the temperature of heating kettle reaches 145 DEG C, pitch is added in just compound, 1.2h is stirred, makes
Uniformly powder-mixed material is made in it；
(3) compression process
Powdered compound is placed in mould 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, processing time 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 extrusion temperature is
175℃；
(6) calcination process
The carbon sliding block material blank of extrusion forming is put into roaster, is calcined 16 days at 1010 DEG C, that is, obtains carbon cunning
Block of material.
Physical property detection is carried out to obtained carbon sliding block material, the results are shown in Table 1.
Embodiment 3
(1) stocked up according to following weight
(2) raw material mixes
Continuous heating is carried out to mixing kettle, when the temperature of mixing kettle reaches 115 DEG C, by petroleum coke, Delanium, natural
Graphite, pitch, molybdenum disulfide, glass fibre and calcium stearate are added in mixing kettle, are stirred 2.2h, make it uniformly, system
Obtain powdered just compound；
Then, when the temperature of heating kettle reaches 155 DEG C, pitch is added in just compound, 1.3h is stirred, makes
Uniformly powder-mixed material is made in it；
(3) compression process
Powdered compound is placed in mould and carries out compression process, columned stock column is made；
(4) curing process
The stock column suppressed is placed in 95 DEG C of baking oven and carries out curing process, processing time 17h, stock column is kept permanent
Temperature；
(5) extrusion forming
Stock column after solidification is put into extrusion forming in extruder, obtains carbon sliding block material blank, setting extrusion temperature is
165℃；
(6) calcination process
The carbon sliding block material blank of extrusion forming is put into roaster, is calcined 14 days at 1020 DEG C, that is, obtains carbon cunning
Block of material.
Physical property detection is carried out to obtained carbon sliding block material, the results are shown in Table 1.
Embodiment 4
(1) stocked up according to following weight
(2) raw material mixes
Continuous heating is carried out to mixing kettle, when the temperature of mixing kettle reaches 130 DEG C, by petroleum coke, Delanium, natural
Graphite, pitch, molybdenum disulfide, glass fibre and calcium stearate are added in mixing kettle, are stirred 2.5h, make it uniformly, system
Obtain powdered just compound；
Then, when the temperature of heating kettle reaches 140 DEG C, pitch is added in just compound, 1.5h is stirred, makes
Uniformly powder-mixed material is made in it；
(3) compression process
Powdered compound is placed in mould and carries out compression process, columned stock column is made；
(4) curing process
The stock column suppressed is placed in 90 DEG C of baking oven and carries out curing process, processing time 18h, stock column is kept permanent
Temperature；
(5) extrusion forming
Stock column after solidification is put into extrusion forming in extruder, obtains carbon sliding block material blank, setting extrusion temperature is
180℃；
(6) calcination process
The carbon sliding block material blank of extrusion forming is put into roaster, is calcined 15 days at 1000 DEG C, that is, obtains carbon cunning
Block of material.
Physical property detection is carried out to obtained carbon sliding block material, the results are shown in Table 1.
Embodiment 5
(1) stocked up according to following weight
(2) raw material mixes
Continuous heating is carried out to mixing kettle, when the temperature of mixing kettle reaches 110 DEG C, by petroleum coke, Delanium, natural
Graphite, pitch, molybdenum disulfide, glass fibre and calcium stearate are added in mixing kettle, are stirred 2h, it is uniformly made
Powdered just compound；
Then, when the temperature of heating kettle reaches 150 DEG C, pitch is added in just compound, 1h is stirred, makes it
Uniformly, powder-mixed material is made；
(3) compression process
Powdered compound is placed in mould and carries out compression process, columned stock column is made；
(4) curing process
The stock column suppressed is placed in 110 DEG C of baking oven and carries out curing process, processing time 12h, 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 extrusion temperature is
160℃；
(6) calcination process
The carbon sliding block material blank of extrusion forming is put into roaster, is calcined 15 days at 1030 DEG C, that is, obtains carbon cunning
Block of material.
Physical property detection is carried out to obtained carbon sliding block material, the results are shown in Table 1.
The embodiment 1-5 carbon sliding block material physical property testing results of table 1
From the data in table 1, it can be seen that carbon sliding block material physical property of the present invention is good, reach railway TJ/JW029-2014 marks
Alignment request, resistivity is low, conducts electricity very well, and bulk density is small, and rupture strength and compression strength are high, and hardness is moderate, impact flexibility
It is good.
Claims (10)
1. a kind of magnetic suspension train carbon sliding block material, including carbon sliding block base stock, it is characterised in that also include：
Molybdenum disulfide-mixture of glass fibers；And
Calcium stearate；
Wherein, the molybdenum disulfide-mixture of glass fibers and the weight of the calcium stearate are：Molybdenum disulfide-glass
Glass fibre blend 3-12, calcium stearate 1-4.
2. magnetic suspension train as claimed in claim 1 carbon sliding block material, it is characterised in that the molybdenum disulfide-glass fibers
Dimension mixture, the weight of calcium stearate and the carbon sliding block base stock are：Molybdenum disulfide-mixture of glass fibers 3-
12nd, calcium stearate 1-4, carbon sliding block base stock 70-140.
3. magnetic suspension train as claimed in claim 2 carbon sliding block material, it is characterised in that the carbon sliding block base stock bag
Include：Petroleum coke, Delanium, native graphite and pitch.
4. magnetic suspension train as claimed in claim 3 carbon sliding block material, it is characterised in that the petroleum coke, Delanium,
The weight of native graphite and pitch is：Petroleum coke 20-40, Delanium 10-30, native graphite 10-20, pitch 30-
50。
5. magnetic suspension train as claimed in claim 4 carbon sliding block material, it is characterised in that the molybdenum disulfide-glass fibers
Dimension mixture, the weight of calcium stearate and the petroleum coke, Delanium, native graphite and pitch are：Molybdenum disulfide-
Mixture of glass fibers 3-12, calcium stearate 1-4, petroleum coke 20-40, Delanium 10-30, native graphite 10-20, pitch
30-50。
6. magnetic suspension train as claimed in claim 5 carbon sliding block material, it is characterised in that the molybdenum disulfide-glass fibers
The weight of molybdenum disulfide and glass fibre is in dimension mixture：Molybdenum disulfide 1-4, glass fibre 2-8.
7. magnetic suspension train as claimed in claim 4 carbon sliding block material, it is characterised in that the molybdenum disulfide-glass fibers
Dimension mixture, the weight of calcium stearate and the petroleum coke, Delanium, native graphite and pitch are：Molybdenum disulfide-
Mixture of glass fibers 5-12, calcium stearate 2-4, petroleum coke 25-40, Delanium 15-30, native graphite 12-20, pitch
35-50。
8. magnetic suspension train as claimed in claim 4 carbon sliding block material, it is characterised in that the molybdenum disulfide-glass fibers
Dimension mixture, the weight of calcium stearate and the petroleum coke, Delanium, native graphite and pitch are：Molybdenum disulfide-
Mixture of glass fibers 5-10, calcium stearate 2-3, petroleum coke 25-35, Delanium 15-25, native graphite 12-18, pitch
35-45。
9. magnetic suspension train as claimed in claim 4 carbon sliding block material, it is characterised in that the molybdenum disulfide-glass fibers
Dimension mixture, the weight of calcium stearate and the petroleum coke, Delanium, native graphite and pitch are：Molybdenum disulfide-
Mixture of glass fibers 7-10, calcium stearate 2.5-3, petroleum coke 30-35, Delanium 20-25, native graphite 15-18, pitch
40-45。
10. magnetic suspension train as claimed in claim 4 carbon sliding block material, it is characterised in that the molybdenum disulfide-glass fibers
Dimension mixture, the weight of calcium stearate and the petroleum coke, Delanium, native graphite and pitch are：Molybdenum disulfide-
Mixture of glass fibers 5-8, calcium stearate 2-2.5, petroleum coke 25-30, Delanium 15-20, native graphite 12-15, pitch
35-40。
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| CN201610496545.5A CN107556013A (en) | 2016-06-30 | 2016-06-30 | A kind of magnetic suspension train carbon sliding block material |
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| CN201610496545.5A CN107556013A (en) | 2016-06-30 | 2016-06-30 | A kind of magnetic suspension train carbon sliding block material |
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2016
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| CN102034561A (en) * | 2010-10-09 | 2011-04-27 | 北京航空航天大学 | Carbon-based slider material for railway vehicle and preparation method thereof |
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Application publication date: 20180109 |