CN106007717B - The preparation method of pantograph carbon slide graphene composite material - Google Patents
The preparation method of pantograph carbon slide graphene composite material Download PDFInfo
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- CN106007717B CN106007717B CN201610335470.2A CN201610335470A CN106007717B CN 106007717 B CN106007717 B CN 106007717B CN 201610335470 A CN201610335470 A CN 201610335470A CN 106007717 B CN106007717 B CN 106007717B
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- graphite alkene
- carbon slide
- pantograph carbon
- composite material
- foamy graphite
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
- C04B35/521—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained by impregnation of carbon products with a carbonisable material
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
Abstract
The present invention discloses a kind of preparation method of pantograph carbon slide graphene composite material, comprising the following steps: S1, selects foamy graphite alkene as substrate；S2, vacuumize process；S3, impregnating pitch is carried out to foamy graphite alkene under high pressure；S4, oxygen barrier carbonization is carried out to the foamy graphite alkene after dipping；S5, size needed for cutting is polishing to pantograph carbon slide is carried out to the foamy graphite alkene after carbonization.By using foamy graphite alkene as substrate, it is vacuumized and high pressure under impregnating pitch processing, oxygen barrier carbonization is carried out to the foamy graphite alkene after dipping again, size needed for cutting is polishing to pantograph carbon slide finally is carried out to the foamy graphite alkene after carbonization, good graphene composite material is provided for pantograph carbon slide, reaches the beneficial effect of the mechanical strength and impact resistance that improve carbon slipper.
Description
Technical field
The present invention relates to pantograph carbon slide preparation technical fields, and it is multiple to particularly relate to a kind of pantograph carbon slide graphene
The preparation method of condensation material.
Background technique
Safety is that railway transportation produces eternal theme.Locomotive is most important power-equipment in railway transportation production.For
With the locomotive that quality is good, quantity is sufficient is provided, smoothly completing and transporting for transport task is ensured with good equipment quality
Production safety is the main task of Locomotive Overhaul work.
Electric locomotive pantograph carbon slide plate is that high-speed rail, motor-car and passenger-cargo electric locomotive provide " throat " portion for power
Part, major function are as follows: electric locomotive is directly contacted with contact line conducting wire by the topmost of pantograph on headstock, and certainly
It works in right environment.Due to constantly generating friction and impact with contact line conducting wire in operation, so this component is a kind of warp
The expendable parts often replaced.
And electric locomotive pantograph carbon slide plate is divided into powder shaped charge liner, pure carbon slipper and metal-impregnated carbon slide.But because
It is serious for abrasion of the powder shaped charge liner to contact line conducting wire, so being rarely employed at present.Pure carbon slipper resistance is low, from profit
Slip can be good with Wear vesistance, wears small and corrosion-resistant, high temperature resistant to contact line conducting wire, but there is also some defects, such as machine
Tool intensity is low, and impact resistance is poor, when especially encountering harder conducting wire, slide plate is be easy to cause to fracture and rupture.And soak metal
Carbon slipper then haves the shortcomings that wear contact line conducting wire more serious.
Therefore, it is necessary to a kind of preparation method of pantograph carbon slide graphene composite material is designed, it is above-mentioned to solve
The low technical problem with impact resistance difference of carbon slipper mechanical strength.
Summary of the invention
The problem of for background technique, it is an object of the present invention to provide a kind of pantograph carbon slide graphene is compound
The preparation method of material improves the mechanical strength and impact resistance of carbon slipper.
The technical scheme of the present invention is realized as follows: a kind of preparation side of pantograph carbon slide graphene composite material
Method, comprising the following steps: S1, select foamy graphite alkene as substrate；S2, vacuumize process；S3, under high pressure to foamy graphite
Alkene carries out impregnating pitch；S4, oxygen barrier carbonization is carried out to the foamy graphite alkene after dipping；S5, to the foamy graphite alkene after carbonization into
Size needed for row cutting is polishing to pantograph carbon slide.
In the above-mentioned technical solutions, in the step S2, vacuum degree when vacuumize process is 0.084 μ Pa.
In the above-mentioned technical solutions, in the step S3, impregnation pressure when high-pressure impregnation pitch is 3 μ Pa.
In the above-mentioned technical solutions, in the step S3, impregnating pitch is first heated to 220~280 DEG C, heat preservation 1.5
~2.5 hours, then impregnating pitch is risen again to 200~250 DEG C, preheating temperature when dipping was 370~390 DEG C.
In the above-mentioned technical solutions, the quinoline of the impregnating pitch does not melt object≤0.2%, 83~86 DEG C of softening point, coking
Value >=48%.
In the above-mentioned technical solutions, in the step S4, the maximum temperature of oxygen barrier carbonization is 1200 DEG C.
In the above-mentioned technical solutions, in the step S4, two to three septums secundum can be carried out to the foamy graphite alkene after dipping
Oxygen carbonization treatment.
In the above-mentioned technical solutions, the indices of the foamy graphite alkene after the carbonization are as follows: bulk density 1.78g/
cm3；Rockwell hardness is 96HR 5/150；Resistivity is 30 μ Ω m；Flexural strength is 95 MPa；Compression strength is 105 MPa.
The preparation method of pantograph carbon slide graphene composite material of the present invention, by using foamy graphite alkene as base
Material, it is vacuumized and high pressure under impregnating pitch processing, then oxygen barrier carbonization is carried out to the foamy graphite alkene after dipping, most
Size needed for cutting is polishing to pantograph carbon slide is carried out to the foamy graphite alkene after carbonization afterwards, is provided for pantograph carbon slide
Good graphene composite material reaches the beneficial effect of the mechanical strength and impact resistance that improve carbon slipper.
Detailed description of the invention
Fig. 1 is the preparation method flow chart of pantograph carbon slide graphene composite material of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of preparation method of pantograph carbon slide graphene composite material of the present invention, including
Following steps:
Step S1, select foamy graphite alkene be used as substrate, because graphene have tensile strength height, toughness it is good and
The advantages of conducting electricity very well is one of the preferential material as pantograph carbon slide.
Step S2, vacuumize process, in this step, vacuum degree when vacuumize process are 0.084 μ Pa.
Step S3, impregnating pitch is carried out to foamy graphite alkene under high pressure；
In this step, impregnation pressure when high-pressure impregnation pitch be 3 μ Pa, the quinoline of the impregnating pitch do not melt object≤
0.2%, 83~86 DEG C of softening point, coking value >=48%.When carrying out impregnating pitch, impregnating pitch is first heated to 220~280
DEG C, 1.5~2.5 hours are kept the temperature, then impregnating pitch is risen again to 200~250 DEG C, preheating temperature when dipping is 370~390
DEG C, to carry out good vacuum high-pressure dipping.
Step S4, oxygen barrier carbonization, this step repeatable two to oxygen barrier carbonization three times are carried out to the foamy graphite alkene after dipping
Processing.And in oxygen barrier carbonization, the maximum temperature of oxygen barrier carbonization is 1200 DEG C.
Step S5, size needed for cutting is polishing to pantograph carbon slide is carried out to the foamy graphite alkene after carbonization.?
This, the indices of the foamy graphite alkene after carbonization are as follows: bulk density 1.78g/cm3；Rockwell hardness is 96HR 5/150；Electricity
Resistance rate is 30 μ Ω m；Flexural strength is 95 MPa；Compression strength is 105 MPa.Good stone is provided for pantograph carbon slide
Black alkene composite material reaches the beneficial effect of the mechanical strength and impact resistance that improve carbon slipper.
The preparation method of pantograph carbon slide graphene composite material of the present invention, by using foamy graphite alkene as base
Material, it is vacuumized and high pressure under impregnating pitch processing, then oxygen barrier carbonization is carried out to the foamy graphite alkene after dipping, most
Size needed for cutting is polishing to pantograph carbon slide is carried out to the foamy graphite alkene after carbonization afterwards, is provided for pantograph carbon slide
Good graphene composite material reaches the beneficial effect of the mechanical strength and impact resistance that improve carbon slipper.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of preparation method of pantograph carbon slide graphene composite material, it is characterised in that: the following steps are included:
S1, select foamy graphite alkene as substrate；
S2, vacuumize process；
S3, impregnating pitch is carried out to foamy graphite alkene under high pressure；
S4, oxygen barrier carbonization is carried out to the foamy graphite alkene after dipping；
S5, size needed for cutting is polishing to pantograph carbon slide is carried out to the foamy graphite alkene after carbonization；
In the step S3, impregnation pressure when high-pressure impregnation pitch is 3 μ Pa；
In the step S3, impregnating pitch is first heated to 220~280 DEG C, keeps the temperature 1.5~2.5 hours, then by impregnating pitch
It rises again to 200~250 DEG C, preheating temperature when dipping is 370~390 DEG C.
2. the preparation method of pantograph carbon slide graphene composite material according to claim 1, it is characterised in that:
In the step S2, vacuum degree when vacuumize process is 0.084 μ Pa.
3. the preparation method of pantograph carbon slide graphene composite material according to claim 1, it is characterised in that: institute
The quinoline for stating impregnating pitch does not melt object≤0.2%, 83~86 DEG C of softening point, coking value >=48%.
4. the preparation method of pantograph carbon slide graphene composite material according to claim 1, it is characterised in that:
In the step S4, the maximum temperature of oxygen barrier carbonization is 1200 DEG C.
5. the preparation method of pantograph carbon slide graphene composite material according to claim 1, it is characterised in that:
In the step S4, two can be carried out to oxygen barrier carbonization treatment three times to the foamy graphite alkene after dipping.
6. the preparation method of pantograph carbon slide graphene composite material according to claim 1, it is characterised in that: institute
The indices of foamy graphite alkene after stating carbonization are as follows: bulk density 1.78g/cm3；Rockwell hardness is 96HR 5/150；Electricity
Resistance rate is 30 μ Ω m；Flexural strength is 95 MPa；Compression strength is 105 MPa.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105152674A (en) * | 2015-08-18 | 2015-12-16 | 河南泛锐复合材料研究院有限公司 | Preparation method of pantograph slide plate made of graphene modified carbon/carbon composite material |
| CN105272254A (en) * | 2015-10-10 | 2016-01-27 | 大同新成新材料股份有限公司 | Preparation method of pantograph carbon contact strip material |
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| US9359675B2 (en) * | 2010-04-22 | 2016-06-07 | Basf Se | Producing two-dimensional sandwich nanomaterials based on graphene |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152674A (en) * | 2015-08-18 | 2015-12-16 | 河南泛锐复合材料研究院有限公司 | Preparation method of pantograph slide plate made of graphene modified carbon/carbon composite material |
| CN105272254A (en) * | 2015-10-10 | 2016-01-27 | 大同新成新材料股份有限公司 | Preparation method of pantograph carbon contact strip material |
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