CN104692823A - Preparation method of C/C (carbon/carbon) composite material slider for pantograph - Google Patents
Preparation method of C/C (carbon/carbon) composite material slider for pantograph Download PDFInfo
- Publication number
- CN104692823A CN104692823A CN201510090380.7A CN201510090380A CN104692823A CN 104692823 A CN104692823 A CN 104692823A CN 201510090380 A CN201510090380 A CN 201510090380A CN 104692823 A CN104692823 A CN 104692823A
- Authority
- CN
- China
- Prior art keywords
- carbon
- matrix material
- felt
- draw runner
- pantograph
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention relates to a preparation method of a C/C (carbon/carbon) composite material slider for a pantograph, and belongs to the technical field of preparation of materials for electric locomotives. The preparation method comprises the following steps of: according to the weight ratio of carbon cloth and carbon felt of (7.5-9): (3-1), circularly overlapping single layer 0-degree weft-free carbon cloth, carbon fiber web tire, 90-degree weft-free carbon cloth and carbon fiber web tire sequentially, and introducing carbon fiber bundles in the direction vertical to the spread by a relay type acupuncture method to form a 2.5D carbon fiber acupuncture integrated felt with density of 0.3-0.6g/cm<3>; performing high-temperature pre-treatment at 1500-2100 degrees centigrade, and performing chemical vapor deposition pyrolytic carbon treatment until obtaining the C/C composite material with the density of 1.4-1.6g/cm<3>; machining according to predetermined size, performing polymer dipping-carbonizing treatment and graphitization treatment sequentially, and then machining according to designed size, so as to obtain a product. The process is simple, a product has excellent mechanical and electrical properties, and the industrial application is prompted.
Description
Technical field
The present invention relates to a kind of manufacture method of pantograph C/C matrix material draw runner, belong to use for electric locomotive technical field of material.
Background technology
The bullet train of electric traction is by the carbon draw runner on pantograph carbon slide and contact line conducting wire friction contact, by the current delivery on electrical network to locomotive electrical system, thus supply high speed train motive, maintenance locomotive normally runs.For realizing above-mentioned functions, pantograph carbon draw runner must possess low resistivity and good wear resistance.
In train high-speed cruising process, due to the vibration of netting twine, carbon draw runner is often subject to the impact of electrical network, particularly when " hard spot " of electrical network, the impact that carbon draw runner on pantograph pan bears is even more serious, sometimes even there is the phenomenon directly thrust by carbon slipper, directly affects the safety and reliability of train operation.For this reason, pantograph carbon draw runner must possess excellent mechanical property, particularly high toughness.
For guaranteeing electric locomotive operating safety, extend the work-ing life of carbon slipper, carbon draw runner must have excellent mechanical property and low resistivity concurrently.At present, number of patent application 201410111706.5 " a kind of railway locomotive Material for Pantograph Slide and preparation method thereof " disclose a kind of with refinery coke and graphite for raw material, pitch as binder, by the pantograph pan that traditional extruding, roasting, charring process manufacture, its mechanical property is very low, and product performance are unstable.Number of patent application 200710017899.8 " preparation method of charcoal/charcoal pantograph pan in use for electric locomotive " discloses a kind of charcoal/charcoal pantograph pan adopting chemical vapour deposition and resin impregnation-charring process to prepare, when preparing long carbon draw runner owing to not adopting front thermal treatment process to cause, easy appearance distortion, bending, affect product size precision, and do not adopt postheat treatment, the resistivity of charcoal draw runner is high, and toughness is low.
Summary of the invention
Technical problem to be solved by this invention is the problems such as, unstable properties high for existing pure carbon slipper bad mechanical strength, resistivity, provides a kind of and has very good mechanical properties, low-resistivity and pantograph C/C draw runner stable and reliable for performance and preparation method thereof.
The preparation method of a kind of pantograph C/C matrix material of the present invention draw runner, comprises the steps:
Step one
By charcoal cloth and charcoal felt mass ratio 7.5-9:3-1, be preferably 8-9:2-1, more preferably 8:2, by individual layer 0 ° without latitude charcoal cloth, Carbon fibe net tire, 90 ° without after latitude charcoal cloth, Carbon fibe net tire successively successively circulation superposition, to make density be 0.3 ~ 0.6g/cm introducing Carbon fibe bundle perpendicular to laying direction to adopt the method for relay-type acupuncture
3the overall felt of 2.5D Carbon fibe acupuncture;
Step 2
Overall for the acupuncture of step one gained Carbon fibe felt is fixedly placed in process furnace, under protective atmosphere, in 1500 ~ 2100 DEG C, is preferably 1800-2100 DEG C, more preferably 1800-2000 DEG C, carries out front high-temperature heat treatment; Obtain the overall felt after front high-temperature heat treatment;
Step 3
Overall felt after high-temperature heat treatment before step 2 gained is carried out chemical vapor deposition pyrolytic carbon process, obtains depositing homogeneous and density is 1.4 ~ 1.6g/cm
3c/C matrix material;
Step 4
Carry out mechanical workout by the size of design draw runner, and carry out polymer impregnated-charing process after reserved process redundancy, until obtaining density is 1.7 ~ 1.9g/cm
3high-density C/C matrix material;
Step 5
Under protective atmosphere, carry out graphitization processing to step 4 gained high-density C/C matrix material, during graphitization processing, control temperature is 1800 ~ 2600 DEG C, is preferably 1800-2300 DEG C, more preferably 2000-2300 DEG C.
Step 6
After carrying out mechanical workout by the size of design draw runner, cleaning, obtains finished product.
The preparation method of a kind of pantograph C/C matrix material of the present invention draw runner, the cloth of charcoal described in step one be 0 ° without latitude charcoal cloth and 90 ° without latitude charcoal cloth.
The preparation method of a kind of pantograph C/C matrix material of the present invention draw runner, the felt of charcoal described in step one is Carbon fibe net tire.
The preparation method of a kind of pantograph C/C matrix material of the present invention draw runner, the mass ratio of the cloth of charcoal described in step one and charcoal felt is 7.5-9:3-1, is preferably 8-9:2-1, more preferably 8:2; Especially, when the mass ratio of charcoal cloth and charcoal felt is 8:2, its mechanical property is better than the ratio (traditional ratio is 7:3) of 7:3 from far away.
The preparation method of a kind of pantograph C/C matrix material of the present invention draw runner, in step 2, the time of described front high-temperature heat treatment is 3 ~ 10 hours, is preferably 3-8 hour, more preferably 5-8 hour.
The preparation method of a kind of pantograph C/C matrix material of the present invention draw runner, in step 2, described protective atmosphere is selected from the one in argon gas atmosphere, nitrogen atmosphere.
The preparation method of a kind of pantograph C/C matrix material of the present invention draw runner, in step 2, during front high-temperature heat treatment, control furnace pressure is pressure-fired.
In order to promote the performance of the finished product, the preferred embodiment of step 2 of the present invention is:
Adopt graphite frock by overall for the acupuncture of step one gained Carbon fibe felt clamping, fixing, prevent carbon felt to be out of shape because size is elongated; High-temperature heat treatment before carrying out in high temperature heat treatment furnace subsequently, during front pyroprocessing, protective atmosphere used is argon gas, and the pressure of argon gas in stove is pressure-fired.Front high-temperature heat treatment had both alleviated the unrelieved stress that Carbon fibe precast body produces in braiding process, eliminated again the glue on Carbon fibe bundle surface.
The preparation method of a kind of pantograph C/C matrix material of the present invention draw runner, in step 3, condition during chemical vapor deposition pyrolytic carbon is:
Carbon-source gas is selected from least one in methane, propylene, Sweet natural gas;
Diluent gas is nitrogen and/or hydrogen;
The volume ratio of carbon-source gas and diluent gas is 1:1 ~ 3;
Depositing temperature is 800 ~ 1100 DEG C, is preferably 850-1050 DEG C, more preferably 850-950 DEG C;
Depositing time is 200 ~ 400 hours, is preferably 200-350 hour, more preferably 250-350 hour.
In order to promote the performance of the finished product further, the preferred embodiment of the present invention when chemical vapor deposition pyrolytic carbon is:
Be fixed in graphite frock by the overall felt after high-temperature heat treatment before step 2 gained, described graphite frock can adjust the angle of body felt in cvd furnace and position; Using at least one in methane, propylene, Sweet natural gas as carbon-source gas, using nitrogen and/or hydrogen as diluent gas, the volume ratio of carbon-source gas and diluent gas is 1:1 ~ 3, first deposits for some time to overall felt weightening finish 0.4 ~ 0.6g/cm
3after; With length direction medullary ray for axle rotates felt body, its angle of rotation is 1-180 degree, and continuing the obtained density of deposition is 1.4 ~ 1.6g/cm
3low density C/C matrix material; During deposition, control temperature is 800 ~ 1100 DEG C.In this scenario, why rotating felt body with length direction medullary ray for axle, is cause C/C composite density irregular in order to reduce because furnace atmosphere is irregular, ensures the homogeneity of felt body different sites deposition.
The preparation method of a kind of pantograph C/C matrix material of the present invention draw runner, in step 4, carries out mechanical workout by the size of design draw runner and reserves process redundancy referring to: after mechanical workout, stay 1-2mm surplus at draw runner width.
The preparation method of a kind of pantograph C/C matrix material of the present invention draw runner, carry out polymer impregnated-charing process be by machining after matrix material adopt graphite frock to grip after carry out polymer impregnated-charing process.
The preparation method of a kind of pantograph C/C matrix material of the present invention draw runner, in step 4, carry out polymer impregnated-charing process time, polymkeric substance used is resin or pitch; Described resin is selected from least one in furane resin, resol.
The preparation method of a kind of pantograph C/C matrix material of the present invention draw runner, in step 4, during solvent impregnated resin, control temperature is 50-170 DEG C, pressure is 1 ~ 3MPa, and the single impregnation time is 1-5 hour; After single impregnation resin completes, be cured 1-5 hour at 180-300 DEG C; At 800 ~ 1100 DEG C, preferably 850-1050 DEG C, more preferably 850-950 DEG C after solidification, carry out charing 40-60 hour, Carbonization Atmospheres is nitrogen; Repeated impregnations, solidification, charring process are until obtaining density is 1.7 ~ 1.9g/cm
3high-density C/C matrix material.
The preparation method of a kind of pantograph C/C matrix material of the present invention draw runner, in step 4, during impregnating pitch, control temperature is 150-250 DEG C, and pressure is 1 ~ 3MPa, and the single impregnation time is 1-5 hour; At 800 ~ 1100 DEG C, preferably 850-1050 DEG C, more preferably 850-950 DEG C after single impregnation pitch, carry out charing 40-60 hour, Carbonization Atmospheres is nitrogen; Repeated impregnations, charring process are until obtaining density is 1.7 ~ 1.9g/cm
3high-density C/C matrix material.
The preparation method of a kind of pantograph C/C matrix material of the present invention draw runner, in step 5, graphitization processing atmosphere used is selected from the one in argon gas atmosphere, nitrogen atmosphere; During graphitization processing, control furnace pressure is pressure-fired, and the time is 3 ~ 10 hours, preferably 3-8 hour, more preferably 5-8 hour.Why the present invention will control time of graphitization processing and temperature is because by the synergy of above-mentioned parameter, the interface binding power between Carbon fibe and RESEARCH OF PYROCARBON is adjusted to a best scope, improves the impelling strength of C/C draw runner.Meanwhile also reduce the resistivity of C/C draw runner.
The preparation method of a kind of pantograph C/C matrix material of the present invention draw runner, in step 6, described cleaning is ultrasonic cleaning, and during described ultrasonic cleaning, washing lotion used is deionized water.Hyperacoustic frequency used is 20-30kHz.
Principle and advantage
(1) the overall felt precast body of 2.5D acupuncture that becomes with charcoal felt with a high proportion of charcoal cloth of the present invention is for reinforcement; utilize chemical vapor infiltration process deposits RESEARCH OF PYROCARBON to the good protection feature of Carbon fibe; and the high-level efficiency of polymer impregnated-charring process and high compactness; the C/C pantograph draw runner of preparation is fine and close, and mechanical property is far away higher than the pure carbon draw runner of existing pantograph.The through engineering approaches difficult problem that pure carbon slipper ruptures because being in use hit can being solved, increasing substantially the work-ing life of carbon slipper, ensure the operating safety of electric locomotive.
(2) adopt a high proportion of charcoal cloth and charcoal felt in step one of the present invention, can ensure that the mechanical property of final C/C draw runner is excellent, particularly outstanding toughness.
(3) the present invention adopts front thermal treatment to alleviate the stress of precast body in braiding process, postheat treatment is adopted to improve the degree of graphitization of C/C draw runner, reduce resistivity, and the interface binding power between Carbon fibe and RESEARCH OF PYROCARBON has been adjusted to a rational scope (compared with prior art, interface binding power between Carbon fibe of the present invention and RESEARCH OF PYROCARBON is a little less than the interface binding power in material prepared by prior art between Carbon fibe and RESEARCH OF PYROCARBON), and then improve the impelling strength of C/C draw runner.
(4) in chemical vapor infiltration stage and polymer impregnated-carbonization stage, adopt the clamping of graphite frock, fix; This can ensure large size, and aspect is than indeformable in charcoal draw runner preparation process.
(5) by the chemical vapour deposition stage, rotate C/C matrix material with length direction medullary ray for axle, ensure that the homogeneity of goods.
(6) the present invention is under the synergy of preparation process and each parameter, and the nearly size that can realize C/C draw runner is shaping, and material use efficiency is high, and yield rate is close to 100%, and product performance are reliable and stable.
Accompanying drawing explanation
The structural representation of the overall felt precast body of pantograph 2.5D acupuncture that accompanying drawing 1 provides for the embodiment of the present invention;
The process flow sheet of the pantograph C/C draw runner preparation method that accompanying drawing 2 provides for the embodiment of the present invention.
As can be seen from Figure 10 ° without latitude cloth, net tire and 90 ° alternately laminated without latitude cloth, become the overall felt of 2.5D by Z-direction fibre prickling.
As can be seen from Figure 2 the present invention mainly includes four committed steps such as front thermal treatment, chemical vapor infiltration, polymer impregnated-charing, postheat treatment and mechanical workout.
Concrete enforcement
Comparative example 1: the SK980 pure carbon slide plate for pantograph that Austrian Huffman company produces, specific performance parameter is in table 1.
Comparative example 2: the charcoal/charcoal pantograph pan that Chaoma Science & Technology Co., Ltd., Xian produces, performance is see Chinese Patent Application No. 200710017899.8 " preparation method of charcoal/charcoal pantograph pan in use for electric locomotive ", and specific performance parameter is as shown in table 1.
Embodiment 1:
Adopt cloth felt to be precast body than the 2.5D Carbon fibe acupuncture entirety felt for 8:2, having prepared density by chemical vapor infiltration technique is 1.42g/cm
3c/C porous insert, through three resin impregnation-charring process, having prepared density is 1.82g/cm
3c/C matrix material, obtain C/C draw runner by 2000 DEG C of high-temperature heat treatment and mechanical workout.
C/C pantograph carbon draw runner in the present embodiment is prepared mainly through following steps:
(1) first, toray company (Toray) PAN type T700 (12K) Carbon fibe produced is adopted to make net tire and without latitude cloth, ensure that the mass ratio without latitude cloth and net tire is 8:2, by individual layer 0 ° without latitude cloth, net plies, 90 ° to circulate successively superposition without latitude cloth, net plies, then, adopting the method for relay-type acupuncture to make density is 0.56g/cm
3carbon fibe precast body, be of a size of 1050*36*25mm;
(2) adopt the graphite frock of design by precast body under argon atmosphere, high-temperature heat treatment before carrying out 1800 DEG C, all times 5 hours, protective atmosphere is argon gas, and pressure is pressure-fired (namely only slight beyond vacuum pressure gauge 0 scale);
(3) adopt propylene to be carbon-source gas, hydrogen is carrier gas, and the volume ratio of propylene and hydrogen is 1:2, and adopt isothermal chemical vapor infiltration to precast body 1050 DEG C of long-pending RESEARCH OF PYROCARBON of sinking, deposit after 100 hours, C/C composite density is 0.92g/cm
3, with length direction medullary ray for axle, C/C matrix material is rotated 180 °, then after depositing 130 hours, obtained density is 1.42g/cm
3c/C matrix material.
(4) according to carbon draw runner size, every root leaves surplus 1mm, and above-mentioned low-density C/C matrix material is carried out mechanical workout.
(5) adopting the graphite frock of design that above-mentioned C/C draw runner is put into vacuum-pressure impregnating autoclave, take furane resin as soaker, adopts high-pressure impregnation art breading.Before dipping, sample should first preheating, and dipping temperature is 60 DEG C, and impregnation pressure is 1.5MPa, and the dwell time is 2 hours.Afterwards, be warming up to 200 DEG C, be incubated and be cured for about 2 hours.Turn charring furnace after solidification and carry out charing process, carbonization temperature is 900 DEG C.Circulate after three times, extrudate density reaches 1.82g/cm
3.
(6) goods of acquisition are put into high temperature heat treatment furnace, at 2000 DEG C, omnidistance process 5 hours, employing argon gas is shielding gas, and pressure is pressure-fired.
(7) C/C matrix material is carried out milling and ground finish, through sonic oscillation cleaning, obtain the C/C draw runner of final size, specific performance parameter is in table 1.
Embodiment 2:
Adopt cloth felt to be precast body than the 2.5D Carbon fibe acupuncture entirety felt for 8:2, having prepared density by chemical vapor infiltration technique is 1.51g/cm
3c/C matrix material, through twice resin impregnation-charring process, having prepared density is 1.76g/cm
3c/C matrix material, obtain C/C draw runner by 2300 DEG C of high-temperature heat treatment and machining.
C/C pantograph draw runner in the present embodiment is prepared mainly through following steps:
(1) first, toray company (Toray) PAN type T700 (12K) Carbon fibe produced is adopted to make net tire and without latitude cloth, ensure that the mass ratio without latitude cloth and net tire is 8:2, by individual layer 0 ° without latitude cloth, net plies, 90 ° to circulate successively superposition without latitude cloth, net plies, then, adopting the method for relay-type acupuncture to make density is 0.35g/cm
3carbon fibe precast body, 1050*36*25mm.
(2) adopt the graphite frock of design by precast body under argon atmosphere, high-temperature heat treatment before carrying out 1600 DEG C, all times 8 hours, protective atmosphere is argon gas, and pressure is pressure-fired (namely only slight beyond vacuum pressure gauge 0 scale);
(3) Sweet natural gas is adopted to be carbon-source gas, hydrogen is carrier gas, the volume ratio of Sweet natural gas and hydrogen is 1:3, adopt heat gradient chemical gaseous phase permeation method to precast body 950 DEG C of long-pending RESEARCH OF PYROCARBON of sinking, deposit after 100 hours, C/C composite density is 0.85g/cm3, with length direction medullary ray for axle, by C/C matrix material half-twist, then after depositing 200 hours, obtained density is 1.51g/cm
3c/C matrix material;
(4) according to carbon draw runner size, every root leaves surplus 1mm, and above-mentioned low-density C/C matrix material is carried out mechanical workout;
(5) adopting the graphite frock of design that the above-mentioned C/C draw runner cut into is put into vacuum-pressure impregnating autoclave, take furane resin as soaker, adopts high-pressure impregnation art breading.Before dipping, sample should first preheating, and dipping temperature is 60 DEG C, and impregnation pressure is 2MPa, and the dwell time is 1.5 hours.Afterwards, be warming up to 200 DEG C, be incubated and be cured for about 3 hours.Turn charring furnace after solidification and carry out charing process, carbonization temperature is 850 DEG C.Circulate after twice, extrudate density reaches 1.76g/cm
3;
(6) goods of acquisition are put into high temperature heat treatment furnace, at 2300 DEG C, omnidistance process 6 hours, employing argon gas is shielding gas;
(7) C/C matrix material is carried out milling and ground finish, obtain the C/C draw runner of final size, specific performance parameter is in table 1.
Embodiment 3:
Adopt cloth felt to be precast body than the 2.5D Carbon fibe acupuncture entirety felt for 8:2, having prepared density by chemical vapor infiltration technique is 1.65g/cm
3c/C matrix material, through twice bituminizing-charring process, having prepared density is 1.85g/cm
3c/C matrix material, obtain C/C draw runner by 2300 DEG C of high-temperature heat treatment and machining.
C/C pantograph draw runner in the present embodiment is prepared mainly through following steps:
(1) first, toray company (Toray) PAN type T700 (12K) Carbon fibe produced is adopted to make net tire and without latitude cloth, ensure that the mass ratio without latitude cloth and net tire is 8:2, by individual layer 0 ° without latitude cloth, net plies, 90 ° to circulate successively superposition without latitude cloth, net plies, then, adopting the method for relay-type acupuncture to make density is 0.56g/cm
3carbon fibe precast body, be of a size of 1050*36*25mm.
(2) adopt the graphite frock of design by precast body under argon atmosphere, high-temperature heat treatment before carrying out 1900 DEG C, all times 10 hours, protective atmosphere is argon gas, and pressure is pressure-fired (namely only slight beyond vacuum pressure gauge 0 scale);
(3) methane is adopted to be carbon-source gas, the mixed gas of hydrogen and nitrogen is carrier gas, the volume ratio of hydrogen and nitrogen is 1:1, the volume ratio of methane and gas mixture is 1:1, adopt heat gradient chemical gaseous phase permeation method to precast body 850 DEG C of long-pending RESEARCH OF PYROCARBON of sinking, deposit after 80 hours, C/C composite density is 0.84g/cm
3, with length direction medullary ray for axle, C/C matrix material is rotated 180 °, continue deposition after 160 hours, density reaches 1.1g/cm
3, carry out mechanical workout, open material surface hole, it is 1.65g/cm that continuation deposition obtained density after 140 hours
3c/C matrix material.
(4) according to carbon draw runner size, every root leaves surplus 1mm, and above-mentioned low-density C/C matrix material is carried out mechanical workout.
(5) adopting the graphite frock of design that the above-mentioned C/C draw runner cut into is put into vacuum-pressure impregnating autoclave, take modified coal pitch as soaker, adopts high-pressure impregnation art breading.Before dipping, sample should first preheating, and dipping temperature is 180 DEG C, and impregnation pressure is 3MPa, and the dwell time is 3 hours.After being cooled to room temperature, turn charring furnace and carry out charing process, carbonization temperature is 1000 DEG C.Flood once, to material at 2600 DEG C, argon atmosphere, under pressure-fired condition, heat-treats.Afterwards, then flood once, extrudate density reaches 1.85g/cm
3.
(6) goods of acquisition are put into high temperature heat treatment furnace, at 2300 DEG C, omnidistance process 10 hours, employing argon gas is shielding gas.
(7) C/C matrix material is carried out milling and ground finish, obtain the C/C draw runner of final size, specific performance parameter is in table 1.
The test result of table 1 pantograph carbon draw runner
Adopt C/C draw runner prepared by the present invention as can be seen from Table 1, compared with existing Huffman SK980 product, resistivity significantly reduces, and impelling strength is increased to 5 ~ 10 times; Compared with existing C/C draw runner, impelling strength is increased to 2 ~ 4 times.
Claims (9)
1. a pantograph preparation method for C/C matrix material draw runner, is characterized in that comprising the steps:
Step one
By charcoal cloth and charcoal felt mass ratio 7.5-9:3-1, by 0 ° without latitude charcoal cloth, Carbon fibe net tire, 90 ° without after latitude charcoal cloth, Carbon fibe net tire successively successively circulation superposition, to make density be 0.3 ~ 0.6g/cm introducing Carbon fibe bundle perpendicular to laying direction to adopt the method for relay-type acupuncture
3the overall felt of 2.5D Carbon fibe acupuncture;
Step 2
Overall for the acupuncture of step one gained Carbon fibe felt is fixedly placed in process furnace, under protective atmosphere, in 1500 ~ 2100 DEG C, carries out front high-temperature heat treatment, obtain the overall felt after front high-temperature heat treatment;
Step 3
Overall felt after high-temperature heat treatment before step 2 gained is carried out chemical vapor deposition pyrolytic carbon process, obtains depositing homogeneous and density is 1.4 ~ 1.6g/cm
3c/C matrix material;
Step 4
Carry out mechanical workout by the size of design draw runner, and carry out polymer impregnated-charing process after reserved process redundancy, until obtaining density is 1.7 ~ 1.9g/cm
3high-density C/C matrix material;
Step 5
Under protective atmosphere, carry out graphitization processing to step 4 gained high-density C/C matrix material, during graphitization processing, control temperature is 1800 ~ 2600 DEG C;
Step 6
After carrying out mechanical workout by the size of design draw runner, cleaning, obtains finished product.
2. the preparation method of a kind of pantograph C/C matrix material draw runner according to claim 1, is characterized in that: in step one
The mass ratio of described charcoal cloth and charcoal felt is 8-9:2-1;
Described charcoal cloth be 0 ° without latitude cloth and 90 ° without latitude cloth;
Described charcoal felt is Carbon fibe net tire.
3. the preparation method of a kind of pantograph C/C matrix material draw runner according to claim 2, is characterized in that: in step one., the mass ratio of described charcoal cloth and charcoal felt is 8:2.
4. the preparation method of a kind of pantograph C/C matrix material draw runner according to claim 1, is characterized in that: in step 2, and the temperature of described front high-temperature heat treatment is 1800-2100 DEG C, the time is 3 ~ 10 hours.
5. the preparation method of a kind of pantograph C/C matrix material draw runner according to claim 3, is characterized in that:
Adopt graphite frock by overall for the acupuncture of step one gained Carbon fibe felt clamping, fixing after carry out in high temperature heat treatment furnace before high-temperature heat treatment, the condition of described front high-temperature heat treatment is: temperature 1800-2000 DEG C, time 3-8 hour, and protective atmosphere is argon gas atmosphere.
6. the preparation method of a kind of pantograph C/C matrix material draw runner according to claim 1, is characterized in that; In step 3, condition during chemical vapor deposition pyrolytic carbon process is:
Carbon-source gas is selected from least one in methane, propylene, Sweet natural gas;
Diluent gas is nitrogen and/or hydrogen;
The volume ratio of carbon-source gas and diluent gas is 1:1 ~ 3;
Depositing temperature is 800 ~ 1100 DEG C;
Depositing time is 200 ~ 400 hours.
7. the preparation method of a kind of pantograph C/C matrix material draw runner according to claim 6, it is characterized in that: be fixed in graphite frock by the overall felt after high-temperature heat treatment before step 2 gained, described graphite frock can adjust the angle of body felt in cvd furnace and position; Using at least one in methane, propylene, Sweet natural gas as carbon-source gas, using nitrogen and/or hydrogen as diluent gas, the volume ratio of carbon-source gas and diluent gas is 1:1 ~ 3, first deposits for some time to overall felt weightening finish 0.4 ~ 0.6g/cm
3after; With length direction medullary ray for axle, rotate felt body, its angle of rotation is 1-180 degree, and continuing the obtained density of deposition is 1.4 ~ 1.6g/cm
3c/C matrix material; During deposition, control temperature is 800 ~ 1100 DEG C.
8. the preparation method of a kind of pantograph C/C matrix material draw runner according to claim 1, is characterized in that: carry out in step 4 polymer impregnated-charing process be by machining after matrix material adopt graphite frock to grip after carry out polymer impregnated-charing process;
Carry out polymer impregnated-charing process time, polymkeric substance used is resin or pitch; Described resin is selected from least one in furane resin, resol;
During solvent impregnated resin, control temperature is 50-170 DEG C, pressure is 1 ~ 3MPa, and the single impregnation time is 1-5 hour; After single impregnation resin completes, be cured 1-5 hour at 180-300 DEG C; At 800 ~ 1100 DEG C after solidification, carry out charing 40-60 hour, Carbonization Atmospheres is nitrogen; Repeated impregnations, solidification, charring process are until obtaining density is 1.7 ~ 1.9g/cm
3high-density C/C matrix material;
During impregnating pitch, control temperature is 150-250 DEG C, and pressure is 1 ~ 3MPa, and the single impregnation time is 1-5 hour; Carry out charing 40-60 hour at 800 ~ 1100 DEG C after single impregnation pitch, Carbonization Atmospheres is nitrogen; Repeated impregnations, charring process are until obtaining density is 1.7 ~ 1.9g/cm
3high-density C/C matrix material.
9. the preparation method of a kind of pantograph C/C matrix material draw runner according to claim 1, it is characterized in that: in step 5, graphitization processing atmosphere used is selected from least one in argon gas atmosphere, nitrogen atmosphere; The time of graphitization processing is 3 ~ 10 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510090380.7A CN104692823B (en) | 2015-02-28 | 2015-02-28 | A kind of pantograph preparation method of C/C composite draw runners |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510090380.7A CN104692823B (en) | 2015-02-28 | 2015-02-28 | A kind of pantograph preparation method of C/C composite draw runners |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104692823A true CN104692823A (en) | 2015-06-10 |
| CN104692823B CN104692823B (en) | 2017-07-04 |
Family
ID=53340423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510090380.7A Active CN104692823B (en) | 2015-02-28 | 2015-02-28 | A kind of pantograph preparation method of C/C composite draw runners |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104692823B (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105294139A (en) * | 2015-12-09 | 2016-02-03 | 中南大学 | Method for preparing low-electrical-resistivity C/C composite material carbon runner |
| CN105461340A (en) * | 2015-12-09 | 2016-04-06 | 中南大学 | C/C composite carbon slider provided with cooling function and used for pantograph as well as preparation method of C/C composite carbon slider |
| CN106946582A (en) * | 2017-03-31 | 2017-07-14 | 中南大学 | A kind of Large Size Special Shaped C-base composte material component and preparation method thereof |
| CN109437954A (en) * | 2018-12-13 | 2019-03-08 | 上海康碳复合材料科技有限公司 | A kind of preparation method of carbon/carbon compound material PECVD bearing frame |
| CN109437953A (en) * | 2018-12-13 | 2019-03-08 | 上海康碳复合材料科技有限公司 | A kind of process preparing bullet train carbon/carbon compound material pantograph sliding block |
| CN110483089A (en) * | 2019-09-20 | 2019-11-22 | 湖南金石新材料有限公司 | A kind of density carbon/carbon composite and preparation method thereof |
| CN110483090A (en) * | 2019-09-20 | 2019-11-22 | 湖南金石新材料有限公司 | A kind of carbon/carbon composite and preparation method thereof |
| CN111170756A (en) * | 2019-12-31 | 2020-05-19 | 西安超码科技有限公司 | Preparation method of revolving body carbon/carbon composite material |
| CN111875401A (en) * | 2020-07-24 | 2020-11-03 | 西安超码科技有限公司 | Preparation method of high-strength and high-purity carbon/carbon composite material revolving body formed by winding |
| CN111960840A (en) * | 2020-07-29 | 2020-11-20 | 常州翊翔炭材科技有限公司 | Preparation method of airplane brake disc made of non-wet attenuated carbon/carbon composite material |
| CN112028657A (en) * | 2020-08-03 | 2020-12-04 | 杭州卓导新材料有限公司 | Preparation method of carbon/carbon composite material crucible |
| CN112091198A (en) * | 2020-08-10 | 2020-12-18 | 杭州卓导新材料有限公司 | Preparation method of novel carbon/carbon-copper composite material slide bar |
| CN112430116A (en) * | 2020-12-04 | 2021-03-02 | 西安美兰德新材料有限责任公司 | Preparation method of carbon/carbon composite material PECVD bearing frame |
| CN113277866A (en) * | 2021-04-30 | 2021-08-20 | 北京化工大学 | Preparation method of bidirectional high-thermal-conductivity carbon/carbon composite material |
| CN113292351A (en) * | 2021-04-25 | 2021-08-24 | 航天材料及工艺研究所 | Preparation method of quasi-isotropic carbon cloth needle-punched carbon/carbon composite material |
| CN113292352A (en) * | 2021-04-30 | 2021-08-24 | 北京化工大学 | Preparation method of unidirectional high-thermal-conductivity carbon/carbon composite material |
| CN114920574A (en) * | 2022-06-07 | 2022-08-19 | 醴陵市东方电瓷电器有限公司 | Method for preparing large-size carbon-carbon crucible by three-dimensional weaving of carbon fibers |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101049803A (en) * | 2007-05-23 | 2007-10-10 | 西安超码科技有限公司 | Method for manufacturing charcoal / charcoal pantograph pan in use for electric locomotive |
| CN101239835A (en) * | 2007-02-05 | 2008-08-13 | 中南大学 | Method for preparing charcoal/charcoal-silicon carbide material used for magnetic suspension train slide |
| CN101830723A (en) * | 2010-04-30 | 2010-09-15 | 湖南大学 | Method for preparing carbon/carbon composite material for pantograph pan |
-
2015
- 2015-02-28 CN CN201510090380.7A patent/CN104692823B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101239835A (en) * | 2007-02-05 | 2008-08-13 | 中南大学 | Method for preparing charcoal/charcoal-silicon carbide material used for magnetic suspension train slide |
| CN101049803A (en) * | 2007-05-23 | 2007-10-10 | 西安超码科技有限公司 | Method for manufacturing charcoal / charcoal pantograph pan in use for electric locomotive |
| CN101830723A (en) * | 2010-04-30 | 2010-09-15 | 湖南大学 | Method for preparing carbon/carbon composite material for pantograph pan |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105461340A (en) * | 2015-12-09 | 2016-04-06 | 中南大学 | C/C composite carbon slider provided with cooling function and used for pantograph as well as preparation method of C/C composite carbon slider |
| CN105294139A (en) * | 2015-12-09 | 2016-02-03 | 中南大学 | Method for preparing low-electrical-resistivity C/C composite material carbon runner |
| CN106946582A (en) * | 2017-03-31 | 2017-07-14 | 中南大学 | A kind of Large Size Special Shaped C-base composte material component and preparation method thereof |
| CN106946582B (en) * | 2017-03-31 | 2020-05-05 | 中南大学 | Large-size special-shaped carbon-based composite material component and preparation method thereof |
| CN109437954A (en) * | 2018-12-13 | 2019-03-08 | 上海康碳复合材料科技有限公司 | A kind of preparation method of carbon/carbon compound material PECVD bearing frame |
| CN109437953A (en) * | 2018-12-13 | 2019-03-08 | 上海康碳复合材料科技有限公司 | A kind of process preparing bullet train carbon/carbon compound material pantograph sliding block |
| CN110483089A (en) * | 2019-09-20 | 2019-11-22 | 湖南金石新材料有限公司 | A kind of density carbon/carbon composite and preparation method thereof |
| CN110483090A (en) * | 2019-09-20 | 2019-11-22 | 湖南金石新材料有限公司 | A kind of carbon/carbon composite and preparation method thereof |
| CN111170756A (en) * | 2019-12-31 | 2020-05-19 | 西安超码科技有限公司 | Preparation method of revolving body carbon/carbon composite material |
| CN111170756B (en) * | 2019-12-31 | 2022-06-07 | 西安超码科技有限公司 | Preparation method of revolving body carbon/carbon composite material |
| CN111875401B (en) * | 2020-07-24 | 2022-05-13 | 西安超码科技有限公司 | Preparation method of high-strength and high-purity carbon/carbon composite material revolving body formed by winding |
| CN111875401A (en) * | 2020-07-24 | 2020-11-03 | 西安超码科技有限公司 | Preparation method of high-strength and high-purity carbon/carbon composite material revolving body formed by winding |
| CN111960840A (en) * | 2020-07-29 | 2020-11-20 | 常州翊翔炭材科技有限公司 | Preparation method of airplane brake disc made of non-wet attenuated carbon/carbon composite material |
| CN112028657A (en) * | 2020-08-03 | 2020-12-04 | 杭州卓导新材料有限公司 | Preparation method of carbon/carbon composite material crucible |
| CN112091198A (en) * | 2020-08-10 | 2020-12-18 | 杭州卓导新材料有限公司 | Preparation method of novel carbon/carbon-copper composite material slide bar |
| CN112430116A (en) * | 2020-12-04 | 2021-03-02 | 西安美兰德新材料有限责任公司 | Preparation method of carbon/carbon composite material PECVD bearing frame |
| CN113292351A (en) * | 2021-04-25 | 2021-08-24 | 航天材料及工艺研究所 | Preparation method of quasi-isotropic carbon cloth needle-punched carbon/carbon composite material |
| CN113277866A (en) * | 2021-04-30 | 2021-08-20 | 北京化工大学 | Preparation method of bidirectional high-thermal-conductivity carbon/carbon composite material |
| CN113292352A (en) * | 2021-04-30 | 2021-08-24 | 北京化工大学 | Preparation method of unidirectional high-thermal-conductivity carbon/carbon composite material |
| CN113277866B (en) * | 2021-04-30 | 2022-09-23 | 北京化工大学 | Preparation method of bidirectional high-thermal-conductivity carbon/carbon composite material |
| CN114920574A (en) * | 2022-06-07 | 2022-08-19 | 醴陵市东方电瓷电器有限公司 | Method for preparing large-size carbon-carbon crucible by three-dimensional weaving of carbon fibers |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104692823B (en) | 2017-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104692823A (en) | Preparation method of C/C (carbon/carbon) composite material slider for pantograph | |
| CN105294139B (en) | A kind of preparation method of low-resistivity C/C composite material carbon draw runners | |
| CN101698975B (en) | Method for modifying carbonized pre-oxidized fiber preform interface by carbon nanotube | |
| CN104311093A (en) | Preparation method of C/C composite material | |
| CN109320278B (en) | Heat-conducting ceramic matrix composite and preparation method thereof | |
| CN108046819B (en) | C/C-SiC friction material with integrated structure and function and preparation method thereof | |
| CN107311682B (en) | SiC nanowire reinforced Cf/SiC ceramic matrix composite and preparation method thereof | |
| CN107010985B (en) | Ti3SiC2 phase-containing carbon fiber reinforced ceramic matrix friction material and preparation method thereof | |
| CN105110809B (en) | The preparation method of the modified high heat conductance three-dimensional carbon/carbon composite of Graphene | |
| CN111960839B (en) | Preparation method of pantograph slide plate for high-speed train | |
| CN105481413B (en) | A kind of preparation method of metal mold C/C composite material carbon draw runners | |
| CN111943726A (en) | High-performance C/SiBCN composite material and preparation method and application thereof | |
| CN105235529A (en) | Preparation method for pantograph slide plate made of graphene-copper modified carbon/carbon composite material | |
| CN109811327B (en) | Nano interface layer/carbon nano tube-C/C composite material and preparation method thereof | |
| CN102492260A (en) | Ablation-resisting composite material resin composition and preparation method of ablation-resisting composite material | |
| CN111648128B (en) | Quasi-isotropic high-thermal-conductivity C/C composite material and preparation method thereof | |
| CN105461340A (en) | C/C composite carbon slider provided with cooling function and used for pantograph as well as preparation method of C/C composite carbon slider | |
| CN113121253B (en) | Ultrahigh-temperature C/SiHfBCN ceramic matrix composite material and preparation method thereof | |
| CN111675547B (en) | Quasi-isotropic high-thermal-conductivity C/C composite material and preparation method thereof | |
| CN110028329A (en) | A kind of high heat-conducting ceramic based composites and preparation method thereof | |
| CN112194497A (en) | Method for preparing C/C composite material by low-temperature hot-pressing high-temperature pressureless two-step sintering | |
| CN116330757A (en) | High-strength laminated carbon-carbon composite material and preparation method thereof | |
| CN109095929B (en) | Preparation method of carbon-ceramic brake disc | |
| CN113582710B (en) | High-thermal-conductivity carbon fiber rod for weaving and preparation method and application thereof | |
| CN113896557A (en) | C/ZrC-SiC composite material and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xiao Peng Inventor before: Xiao Peng Inventor before: Dai Yuhai |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |