CN1544828A - Use of carbon/carbon, carbon/ceramic composite material as brake lining, method and apparatus for making same - Google Patents
Use of carbon/carbon, carbon/ceramic composite material as brake lining, method and apparatus for making same Download PDFInfo
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- CN1544828A CN1544828A CNA2003101059818A CN200310105981A CN1544828A CN 1544828 A CN1544828 A CN 1544828A CN A2003101059818 A CNA2003101059818 A CN A2003101059818A CN 200310105981 A CN200310105981 A CN 200310105981A CN 1544828 A CN1544828 A CN 1544828A
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Abstract
The invention relates to the application of C/C and C/ceramic composite brake plate in motor vehicles, its preparing method: making the prefabricated piece, placing chemical liquid depositing device for chemical liquid deposition, graphitizing to form primary products; for size, processing into semifinished brake plate; coating the surface; sintering; finely processing to form finished composite brake plates. The device includes furnace body, vacuum system, condenser, water circulating system, liquid feeding system at the bottom of the furnace, the heated product placed on the base of the furnace body and a heating body in the center, where there are the inductor and the electric system connected of the doctor and variable-frequency power supply, both set on the periphery of the heated produce. It shortens the depositing time by several ten times or 101 times above, heightens the productivity, saves raw material and reduces product cost.
Description
Technical field
The present invention relates to brake of motor-driven vehicle sheet, particularly carbon/carbon, the application of carbon/ceramic composite material brake block on motor vehicle.
Background technique
Along with the appearance of subway, urban light rail, bullet train, automobile sport car and motorcycle racing car, the vehicle braked problem is subject to people's attention gradually, and brake block is the important component part of braking system; Carbon current/carbon, the carbon/ceramic composite material brake block only uses on space shuttle, the method of producing this brake block mainly is to use Low Pressure Chemical Vapor Deposition, this method thickening technology process and time are longer, generally be to cause the several months just can finish from hundreds of hours, it is extremely low to exist working efficiency, the energy and time have been wasted greatly, the defective that product cost is high, the brake block that existing motor vehicle use is to adopt the metal or metal alloy manufacturing, this brake block has the following disadvantages again when brake: can produce a large amount of heat energy during brake, the hurried rising of brake block temperature, the brake block performance is reduced, brake block produces softening, can influence vehicle and personal safety when serious.
Summary of the invention
It is low that goal of the invention of the present invention provides cost, and process time is short, improves a kind of carbon/carbon, the carbon/ceramic composite material of car brakeing Safety performance and reliability and use the preparation method as brake block.
Another goal of the invention of the present invention provides the chemical liquid deposition device of producing brake block.
The technological scheme that realizes goal of the invention is to solve like this: the preparation method that carbon/carbon, carbon/ceramic composite material are used as brake block comprises the steps successively
The prefabricated component of I, making brake block, described prefabricated component mainly comprises fiber, fabric, felt base;
II, the prefabricated component of the brake block made is put into the chemical liquid deposition device of producing composite material brake block, carry out chemical liquid deposition, its chemical liquid deposition temperature is at least more than 850 ℃ or 850 ℃; Or the Low Pressure Chemical Vapor Deposition deposition, its chemical vapor deposition temperature is at least more than 800 ℃ or 800 ℃;
III, will deposit good preform product and send into graphitizing furnace and handle, the graphitization processing temperature is at least more than 2000 ℃ or 2000 ℃;
IV, after graphitization processing, form carbon/carbon or carbon/ceramic composite material primary product;
V, carbon/carbon or carbon/ceramic composite material primary product are processed into the semi-finished product brake block according to the standard measure of various brake of motor-driven vehicle sheets;
The surface of VI, semi-finished product brake block is coated with brush applied coating, forms antioxidant layer;
After coating is carried out on the surface of VII, semi-finished product brake block, enter the sintering furnace sintering, its sintering temperature is at least more than 800 ℃ or 800 ℃; Sintering time is more than 3 hours;
VIII, behind the sintering furnace sintering, again by retrofit, just formed carbon/carbon or carbon/ceramic composite material brake block finished product, can sell through being up to the standards.
Preparation carbon/carbon, carbon/ceramic composite material comprise body of heater, vacuum system, liquid make-up system, water system, power-supply system as the chemical liquid deposition device of brake block.Outstanding feature part of the present invention is that said body of heater is a double layer construction, can inject cooling water or gas between the internal and external layer.The vacuum system on the body of heater left side is connected with the top of body of heater.The top of body of heater is connected with condenser, cooling water inlet pipe and the outlet pipe that alternating expression is arranged respectively.The middle part of body of heater is provided with draws electricity and draws flange.The bottom of body of heater is provided with the connection base, places on the base and is heated goods.The center that is heated goods is equipped with heater, and the outer periphery that is heated goods has inductor, and inductor is connected with variable-frequency power sources.Be built-in with carbon elements low molecular compound liquid in the bottom of body of heater, it inserts the liquid supplies by pipeline.Condenser, cooling water inlet pipe and outlet pipe that water tank is arranged by the pipeline and the alternating expression of upper of furnace body are connected respectively, carry out water cycle.
The brake block of the present invention and existing metal or metal alloy manufacturing has following beneficial effect:
The brake block of I, the production of employing chemical liquid deposition has shortened the time of sedimentation time more than tens times or 100 times, has improved manufacturing efficiency, has saved raw material, and its product cost is reduced greatly.
II, compare with metalwork in light weight;
III, ratio are high by force, specific modulus is high;
IV, high thermal conductivity, low-expansion coefficient;
V, fracture toughness height, good, the anti-ablation of wear resistance;
VI, good chemical stability and dimensional stability are arranged;
VII, intensity raise with temperature;
VIII, long service life.
IX, deposition rate are fast, and consumes energy is few, and manufacturing process is short, and its product technology performance and parameter are suitable with the product technology performance and the parameter of chemical vapor deposition unit production.
X, the feature of environmental protection are good, economize on resources, and behind the chemical cracking, unnecessary low molecular compound can recycling, directly is not discharged in the atmosphere and goes.
XI, the product reliability of producing and stability are high.
The time of XII, deposition is by original hundreds of hours being to cause the several months to narrow down to tens hours and tens hours.Shortened the duration, raised the efficiency tens times to more than 100 times.
This device is the ideal equipment of current carbon/carbon, carbon/composite material quick densifyings such as pottery.Have good social and economic benefit.Be widely used in the liquid phase of densification treatment process of carbon/carbon, carbon/composite materials such as pottery.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
Fig. 2 is a chemical liquid deposition device master pseudosection of the present invention;
Fig. 3 is chemical liquid deposition device of the present invention embodiment master's pseudosection in addition.
Embodiment
Accompanying drawing is embodiments of the invention
Below in conjunction with accompanying drawing content of the present invention is described further
With reference to accompanying drawing 1, carbon/carbon, carbon/ceramic composite material are used the preparation method as brake block, comprise the steps: successively
The prefabricated component of I, making brake block, described prefabricated component mainly comprises fiber, fabric, felt base;
II, the prefabricated component of the brake block made is put into the chemical liquid deposition device of producing composite material brake block, carry out chemical liquid deposition, its chemical liquid deposition temperature is at least more than 850 ℃ or 850 ℃; Or the Low Pressure Chemical Vapor Deposition deposition, its chemical vapor deposition temperature is at least more than 800 ℃ or 800 ℃;
III, will deposit good preform product and send into graphitizing furnace and handle, the graphitization processing temperature is at least more than 2000 ℃ or 2000 ℃, the non-graphite matter carbon that makes thermodynamic instability changes the high-temperature heat treatment process of graphite matter carbon, i.e. high temperature transformation carbon-chain structure into by heat activation;
IV, after graphitization processing, form carbon/carbon or carbon/ceramic composite material primary product;
V, carbon/carbon or carbon/ceramic composite material primary product are processed into the semi-finished product brake block according to the standard measure of various brake of motor-driven vehicle sheets;
The surface of VI, semi-finished product brake block is coated with brush applied coating, forms antioxidant layer;
After coating is carried out on the surface of VII, semi-finished product brake block, enter the sintering furnace sintering, its sintering temperature is at least more than 800 ℃ or 800 ℃, and sintering time is more than 3 hours;
VIII, behind the sintering furnace sintering, again by retrofit, just formed carbon/carbon or carbon/ceramic composite material brake block finished product.Can sell through being up to the standards.
Shown in Figure 2, this figure is that induction type heats main pseudosection.Comprise body of heater 3, vacuum system 1, liquid supplies 2, water tank 7, power supply 8.Said body of heater 3 is double layer constructions, can inject cold water or gas between the internal and external layer.Body of heater 3 left sides are vacuum system 1, are connected with the top of body of heater 3.The top of body of heater 3 is connected with condenser 12, cooling water inlet pipe 13 and the outlet pipe 14 that alternating expression is arranged respectively.The middle part of body of heater 3 is provided with draws electricity and draws flange 9.The bottom of body of heater 3 is provided with base 10.Place on the base 10 and be heated goods 5.The center that is heated goods 5 is equipped with heater 4, and the outer periphery that is heated goods 5 has inductor 6, and inductor 6 is connected with variable-frequency power sources 8.Be built-in with carbon elements low molecular compound liquid 11 in the bottom of body of heater 3, it inserts liquid supplies 2 by pipeline.Condenser 12, cooling water inlet pipe 13 and outlet pipe 14 that water tank 7 is arranged by the alternating expression on pipeline and body of heater 3 tops are connected respectively and carry out water cycle.Because after carbon elements low molecular compound liquid 11 was heated, a part of element entered and is heated in the goods 5, another part is evaporated, and the liquid level of carbon elements low molecular compound liquid 11 is reduced.Therefore, frequent Guan to examine its liquid level change, at any time by liquid supplies 2 liquid make-up.
Fig. 3 is the another kind of mode of execution of Fig. 2, and its difference is that the center that is heated goods 5 only is equipped with heater 4, has cancelled inductor 6.Heater 4 is connected with direct current or ac power supply 8.Other are identical with accompanying drawing 2.
Body of heater 3 is that internal and external layer has the gap, and circulating water can be injected in the centre, reduces the temperature of body of heater 3 and with the temperature of the flow control body of heater 3 of circulating water with circulating water.The inner chamber of body of heater 3 is because the effect of vacuum system 1, makes to be heated goods 5 and to be in negative pressure state earlier.Its main purpose is that the oxygen in the stove is extracted out, causes detonation to avoid owing to heat up, and guarantees the safety of body of heater 3, treat low molecular compound liquid arrive specify liquid level after, begin to charge into shielding gas, furnace pressure becomes micro positive pressure by negative pressure.Simultaneously, because the effect of negative pressure enters in the internal void that is heated goods 5 low molecular compound liquid 11 rapidly and goes, liquid deposition speed and cracking have been accelerated.
Mode of heating of the present invention is respectively:
Induction heating mode: single-phase single channel or single-phase babble electric current are added on the inductor that is immersed in low molecular compound liquid 11, at heater 4 be heated in the goods 5 and produce eddy current, make it from inside to outside or the ecto-entad heating.After reaching depositing temperature, the 11 beginning cracking of low molecular compound liquid are being heated required element deposition on the goods 5.
Resistance heating mode: direct current or alternating current (a.c.) are added in the heater 4 that is immersed in low molecular compound liquid 11 or are heated on the goods 5, make its heating.After reaching depositing temperature, the 11 beginning cracking of low molecular compound liquid are being heated required element deposition on the goods 5.
Resistance-induction heating Hybrid Heating mode: with direct current or alternating current (a.c.) and induction current order, alternately or act on the heater 4 that is immersed in low molecular compound liquid 11 simultaneously or be heated on the goods 5, make its heating.After reaching depositing temperature, the 11 beginning cracking of low molecular compound liquid are being heated required element deposition on the goods 5.
No matter above-mentioned said three kinds of mode of heatings adopt that a kind of mode, for the cylindricality prefabricated component, begin heating from the core of prefabricated component (axially heater), radially heat to the prefabricated component outside gradually, and deposition process is radially passed with temperature.
For the dish type prefabricated component, be that the both ends of the surface from prefabricated component begin heating, finish until deposition process.
Device of the present invention except that be applicable to civilian, also be used for the processing of the components and parts of national defence and aerospace field.
In sum, heater is graphite rod or other wires (rod).Mode of heating is independent resistance type or independent induction type or resistance-induction combined heated.
Said carbon/carbon compound material brake block is meant with carbon fiber, carbon fibre fabric, felt base etc. as matrix, a kind of composite material brake block behind the deposit carbon.
Said carbon/ceramic composite material brake block is meant with carbon fiber, carbon fibre fabric, felt base etc. as matrix, forms a kind of composite material brake block of silicon carbide ceramics behind the depositing silicon carbide.
Is a reversible process with chemical liquid deposition deposition with graphitization processing, needs sometimes repeatedly to deposit repeatedly and graphitization processing or handle with the combination of Low Pressure Chemical Vapor Deposition sedimentary facies repeatedly.Meet the requirements until deposition, just past next step carries out.
The brake block of producing with the present invention is widely used in subway, urban light rail, bullet train, automobile sport car and the motorcycle racing car.Also applicable to the high gear car.Device except that be applicable to civilian, also be used for the processing of the components and parts of national defence and aerospace field.
Claims (6)
1, a kind of carbon/carbon, carbon/ceramic composite material are as the application of brake block, and its preparation method is undertaken by following step successively:
The prefabricated component of I, making brake block, described prefabricated component mainly comprises fiber, fabric, felt base;
II, the prefabricated component of the brake block made is put into the chemical liquid deposition device of producing composite material brake block, its chemical liquid deposition temperature is at least more than 850 ℃ or 850 ℃; Or the Low Pressure Chemical Vapor Deposition deposition, its chemical vapor deposition temperature is at least more than 800 ℃ or 800 ℃;
III, will deposit good preform product and send into graphitizing furnace and handle, the graphitization processing temperature is at least more than 2000 ℃ or 2000 ℃;
IV, after graphitization processing, form carbon/carbon or carbon/ceramic composite material primary product;
V, carbon/carbon or carbon/ceramic composite material primary product are processed into the semi-finished product brake block according to the standard measure of various brake of motor-driven vehicle sheets;
VI, the surface of semi-finished product brake block is coated with brush applied coating, forms antioxidant layer;
After the surface of VII, semi-finished product brake block is coated with brush applied coating, enter the sintering furnace sintering, its sintering temperature is at least more than 800 ℃ or 800 ℃, and sintering time is more than 3 hours;
VIII, behind the sintering furnace sintering, again by retrofit, just formed carbon/carbon or carbon/ceramic composite material brake block finished product, can sell through being up to the standards.
2, a kind of preparation carbon/carbon of realizing claim 1, carbon/ceramic composite material is as the chemical liquid deposition device of brake block, comprise body of heater (3), vacuum system (1), liquid make-up system (2), water tank (7), power supply (8), it is characterized in that said body of heater (3) is double layer construction, can inject cold water or gas between the internal and external layer, body of heater (3) left side vacuum system (1) is connected with the top of body of heater (3), the top of body of heater (3) is connected with the condenser (12) that alternating expression is arranged respectively, cooling water inlet pipe (13) and outlet pipe (14), the middle part of body of heater (3) is provided with draws electricity and draws flange (9), the bottom of body of heater (3) is provided with base (10), base (10) is gone up to place and is heated goods (5), the center that is heated goods (5) is equipped with heater (4), the outer periphery that is heated goods (5) has inductor (6), inductor (6) is connected with variable-frequency power sources (8), be built-in with carbon elements low molecular compound liquid (11) in the bottom of body of heater (3), it inserts liquid supplies (2) by pipeline, the condenser (12) that water tank (7) is arranged by the alternating expression on pipeline and body of heater (3) top, cooling water inlet pipe (13) is connected respectively with outlet pipe (14) and carries out water cycle.
3, preparation carbon/carbon according to claim 2, carbon/ceramic composite material is as the chemical liquid deposition device of brake block, it is characterized in that said heater, inductor, is heated the goods three and all is immersed in the carbon elements low molecular compound liquid.
4, preparation carbon/carbon according to claim 2, carbon/ceramic composite material is as the chemical liquid deposition device of brake block, it is characterized in that said vacuum system is made up of vacuum pump and filter.
5, preparation carbon/carbon according to claim 2, carbon/ceramic composite material is as the chemical liquid deposition device of brake block, it is characterized in that said mode of heating is an independent resistance heating mode or mode of heating is made up in induction heating mode or resistance-induction separately.
6, preparation carbon/carbon according to claim 2, carbon/ceramic composite material is characterized in that as the chemical liquid deposition device of brake block said heater is graphite rod or other wires or rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101059818A CN1544828A (en) | 2003-11-27 | 2003-11-27 | Use of carbon/carbon, carbon/ceramic composite material as brake lining, method and apparatus for making same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101059818A CN1544828A (en) | 2003-11-27 | 2003-11-27 | Use of carbon/carbon, carbon/ceramic composite material as brake lining, method and apparatus for making same |
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| CN1544828A true CN1544828A (en) | 2004-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2003101059818A Pending CN1544828A (en) | 2003-11-27 | 2003-11-27 | Use of carbon/carbon, carbon/ceramic composite material as brake lining, method and apparatus for making same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643103A (en) * | 2012-04-07 | 2012-08-22 | 西安航空制动科技有限公司 | Preparation method of carbon brake disk |
| CN101386547B (en) * | 2008-08-21 | 2012-11-14 | 湖南金博复合材料科技有限公司 | Carbon/carbon compound material heating element and production technology thereof |
| CN105948774A (en) * | 2016-04-13 | 2016-09-21 | 南通大学 | Preparation method for superhard carbon/carbon bulletproof material |
| WO2017206271A1 (en) * | 2016-06-01 | 2017-12-07 | 江苏金麦穗新能源科技股份有限公司 | Process for producing waste-fabric fiber brake-pad friction material |
| CN108317189A (en) * | 2017-12-25 | 2018-07-24 | 山东国晶新材料有限公司 | A kind of carbon with thermal insulation layer-pottery brake block and processing method |
| CN114016006A (en) * | 2021-10-27 | 2022-02-08 | 中国科学院化学研究所 | Equipment for chemical liquid phase deposition film forming |
-
2003
- 2003-11-27 CN CNA2003101059818A patent/CN1544828A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101386547B (en) * | 2008-08-21 | 2012-11-14 | 湖南金博复合材料科技有限公司 | Carbon/carbon compound material heating element and production technology thereof |
| CN102643103A (en) * | 2012-04-07 | 2012-08-22 | 西安航空制动科技有限公司 | Preparation method of carbon brake disk |
| CN105948774A (en) * | 2016-04-13 | 2016-09-21 | 南通大学 | Preparation method for superhard carbon/carbon bulletproof material |
| CN105948774B (en) * | 2016-04-13 | 2020-06-26 | 南通大学 | Preparation method of superhard carbon/carbon bulletproof material |
| WO2017206271A1 (en) * | 2016-06-01 | 2017-12-07 | 江苏金麦穗新能源科技股份有限公司 | Process for producing waste-fabric fiber brake-pad friction material |
| CN108317189A (en) * | 2017-12-25 | 2018-07-24 | 山东国晶新材料有限公司 | A kind of carbon with thermal insulation layer-pottery brake block and processing method |
| CN114016006A (en) * | 2021-10-27 | 2022-02-08 | 中国科学院化学研究所 | Equipment for chemical liquid phase deposition film forming |
| CN114016006B (en) * | 2021-10-27 | 2022-06-28 | 中国科学院化学研究所 | Chemical liquid phase deposition film forming equipment for continuous ion layer adsorption |
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