CN201950721U - Special device for producing carbon-ceramic composite material - Google Patents
Special device for producing carbon-ceramic composite material Download PDFInfo
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- CN201950721U CN201950721U CN201020587061XU CN201020587061U CN201950721U CN 201950721 U CN201950721 U CN 201950721U CN 201020587061X U CN201020587061X U CN 201020587061XU CN 201020587061 U CN201020587061 U CN 201020587061U CN 201950721 U CN201950721 U CN 201950721U
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Abstract
The utility model discloses a special device for producing carbon-ceramic composite material, which comprises a turbulence-type ultrafine flour mill, a spray comminutor, an isostatic compaction machine, a large-scale atmosphere protection calcining furnace and a high pressure impregnating autoclave. The utility model discloses a special device for producing carbon-ceramic composite material, which comprises a turbulence-type ultrafine flour mill, a spray comminutor, an isostatic compaction machine, a large-scale atmosphere protection calcining furnace and a high pressure impregnating autoclave. Ultrafine silicon carbide powders with the particle size thereof to be less than or equal to 1 mu m are prepared by the turbulence-type ultrafine flour mill. Particles with the particle size thereof to be no less than 2 mu m are prepared by the spray comminutor after the clinkers are subject to the spray granulating. Then the density of the particles is up to 2.05g/cm3 after being compacted by the isostatic compaction machine. The calcination temperature inside the large-scale atmosphere protection calcining furnace is 1300 DEG C. The dipping pressure inside the high pressure impregnating autoclave is 5.0 MPa. The affinity interaction of the ceramic powders with the coal tar pitch is realized by the coupling agent. More important is that covalent bonds are formed between the ceramic powders and the coal tar pitch by the high temperature roasting, thus is tight in combination. Therefore, the combination between the ceramic powders and the coal tar pitch is enhanced and hardened, thereby improving the product quality.
Description
Technical field
The utility model relates to a kind of isolated plant of producing the carbon ceramic composite material, specifically belongs to the nonmetallic materials technical field.
Background technology
The carbon graphite material of high strength, high rigidity, highly corrosion resistant can not occur simultaneously in actual applications, can deal with this three high performance carbon graphite material simultaneously as making, and technology difficulty is big, and the production cycle is long, and cost is too high, is not suitable for the market large-scale popularization and uses.The production of carbon graphite material all is as binding agent with coal tar pitch, coal tar pitch becomes the coke network after roasting, make the carbon graphite product that certain intensity arranged, molten molten coal tar pitch and carbon graphite powder has good affinity interaction in kneading process, absorption mutually, give that regular hour and temperature can both success finish to mix pinched cladding, to ceramic powder but not so, coal tar pitch solution and ceramic powder repel mutually, through peptizaiton, very difficult cladding well, ceramic powder particle is independent the existence in carbon graphite material, at first runs out in friction pair friction of motion process, as the abrasive end face grinding agent, quicken the abrasion of carbon graphite material, helpful to the self-regeneration of carbon graphite material in right amount as this material, excessively then run counter to desire.Because carbon dust, carbon fiber also belongs to the pure carbon graphite material, belongs to softly in essence, and the particle of running into above its hardness in the friction motion promptly is difficult to bear, and can cause accelerated wear test, short consequence of life-span, is to be difficult to deal with this operating mode so rely on material with carbon element itself.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point, thereby provide a kind of isolated plant of producing the carbon ceramic composite material, under the effect of coupling agent, ceramic powder and coal tar pitch have played affinity interaction, importantly under high-temperature roasting, both sides' molecular energy bears common rank key, is closely linked, really played and increased hard effect, and can improve the quality of products.
The technical solution of the utility model is: a kind of isolated plant of producing the carbon ceramic composite material; comprise turbulence type superfine mill, sponging granulator, isostatic compaction machine, large-scale atmosphere protection roaster, high-pressure impregnation jar, it is characterized in that: technical process and the relevant device of producing the carbon ceramic composite material are followed successively by turbulence type superfine mill, sponging granulator, isostatic compaction machine, large-scale atmosphere protection roaster, high-pressure impregnation jar.Described turbulence type superfine mill; can prepare ultra fine silicon carbide particle diameter≤1um, described sponging granulator is prepared into the particle of particle diameter 2～3um behind the grog mist projection granulating; described isostatic compaction machine; compacting back density reaches 1.65～2.05g/cm3, described large-scale atmosphere protection roaster, and sintering temperature is 1200～1300 ℃; once sintered density will reach 1.7g/cm3～2.1g/cm3; described high-pressure impregnation jar, impregnation pressure is between 3.0MPa-5.0MPa, and density reaches more than the 2.32g/cm3.
Compared with the prior art the utility model has the following advantages: the utility model is under the effect of coupling agent, ceramic powder and coal tar pitch have played affinity interaction, importantly under high-temperature roasting, both sides' molecular energy bears common rank key, be closely linked, really played and increased hard effect, and can improve the quality of products.In whole kneading process, all to cool off recovery to volatile matter, the one, can prevent the pollution of the environment, the 2nd, Recyclable is recycling, saves cost.
Description of drawings
Fig. 1 is a device structure schematic diagram of the present utility model.
Among the figure, 1. turbulence type superfine mill, 2. sponging granulator, 3. isostatic compaction machine, 4. large-scale atmosphere protection roaster, 5. high-pressure impregnation jar.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is further described.
A kind of isolated plant of producing the carbon ceramic composite material in the utility model; comprise turbulence type superfine mill 1, sponging granulator 2, isostatic compaction machine 3, large-scale atmosphere protection roaster 4, high-pressure impregnation jar 5, it is characterized in that: technical process and the relevant device of producing the carbon ceramic composite material are followed successively by turbulence type superfine mill 1, sponging granulator 2, isostatic compaction machine 3, large-scale atmosphere protection roaster 4, high-pressure impregnation jar 5.Described turbulence type superfine mill 1; can prepare ultra fine silicon carbide particle diameter≤1um; described sponging granulator 2; be prepared into the particle of particle diameter 2～3um behind the grog mist projection granulating; described isostatic compaction machine 3; compacting back density reaches 1.65～2.05g/cm3; described large-scale atmosphere protection roaster 4; sintering temperature is 1200～1300 ℃; once sintered density will reach 1.7g/cm3～2.1g/cm3; described high-pressure impregnation jar 5, impregnation pressure is between 3.0MPa-5.0MPa, and density reaches more than the 2.32g/cm3.
Conventional Suspension roller flour mill can only prepare the carbon graphite fine powder of 100um, and the superfine powder output of granularity below 100um is very low, can not satisfy requirements of large-scale production, and cost is also very high.Conventional bigger pottery, the inorganic mineral of air-flowing type ultrafine crusher mill fragility all can reach designing requirement, but during mill carbon graphite raw material 10% of underproduce design output, efficiency is also very low.Turbulence type super fine powder function prepares ultra fine silicon carbide particle diameter≤1um, satisfies the granularity and the output requirement of producing ultra-fine carbon graphite raw material.
The material of preparation carbon ceramic composite material be superfine powder be again the mixture of various materials, adopt mist projection granulating both can increase the flowability of powder, improve apparent density, can prevent again in the mixed material each component because of density different deposit with handling process in phenomenon such as segregation appears, be prepared into the particle of particle diameter 2～3um behind the grog mist projection granulating.
Isostatic compaction is adopted in the compression moulding of carbon ceramic composite material, and products obtained therefrom has isotropic characteristics, and press face is with close perpendicular to press face direction rupture strength, even air hole distribution, internal stress is little, roasting yield rate height, and compacting back density reaches 1.65～2.05g/cm3.
Large-scale atmosphere protection roaster; press heating curve and realize the accurate regulation and control of temperature; workspace uniformity of temperature profile in the stove; have a narrow range of temperature, guarantee constant product quality, reduce the product oxidation simultaneously; shorten roasting time; improve yield rate, sintering temperature is 1200～1300 ℃, and once sintered density will reach 1.7g/cm3～2.1g/cm3.
The high-pressure impregnation jar is selected impregnation pressure between 3.5MPa-5.5MPa, improve dipping effect, improves product density, through the single-steeping after baking density of carbon ceramic composite material is reached more than the 2.32g/cm3.
The course of work of the present utility model is: get 8 parts of silane coupling agents (K577 solvent), and 12 parts of 99% alcohol, 22 parts of dimethylbenzene fully stir in 4 parts of addings of water stirred tank and close, 400 rev/mins of rotating speeds, mixing time 30 minutes is made silane coupling agent mixed solution.
Get 70 parts of ultra fine silicon carbides, tungsten disulfide is put into the dry powder blend still for 22 parts and fully is mixed into ceramic powder, 200 rev/mins of rotating speeds, incorporation time 45 minutes.
45 parts of mixed ceramic powders, 95 parts of silane coupling agent mixed solutions are put into turbulence type superfine mill 1, and ball milling 3 hours is prepared into ultra fine silicon carbide particle diameter≤1um;
75 parts of adding pitch coke powders, 4 parts of carbon blacks, graphite powder are placed on granulation in the sponging granulator for 12 parts in 200 liter sponging granulators 2, are prepared into the particle of particle diameter 2～3um;
In isostatic compaction machine 3, add 34 parts of additive paste, ceramic powder accounts for about 13% of whole carbon graphite powder summation, pressurizeed 0.8 hour, 110 ℃ of temperature, add 75 parts of molten molten coal tar pitch, 15 parts in carbolineum mixture, molten molten coal tar pitch temperature is at 130 ℃, and it is 28%-30% that molten molten coal tar pitch accounts for whole grog; The temperature of heating keeps 140 ℃, and the time needs 4 hours, and compacting back density reaches 1.65～2.05g/cm3;
Advance roasting in the large-scale atmosphere protection roaster 4, temperature is 1300 ℃, and once sintered density reaches more than the 2.1g/cm3;
Roasting product is carried out the coal tar pitch dipping in high-pressure impregnation jar 5, impregnation pressure is 3.5MPa-5.5MPa, dip time: 2.5 hours, density reached more than the 2.20g/cm3.Pickled product is carried out roasting to 1200 ℃ again, and after baking product density reaches more than the 2.32g/cm3, according to the finished product working condition requirement, and resin impregnating 2.5 hours, and solidify and be finished product in 13 hours.
The technical performance of carbon ceramic composite material and conventional material relatively is described as follows:
This shows, the product that the utility model is produced, bulk density improves, and the porosity dwindles, and Shore hardness, rupture strength, compression strength all improve.
Claims (6)
1. isolated plant of producing the carbon ceramic composite material; comprise turbulence type superfine mill, sponging granulator, isostatic compaction machine, large-scale atmosphere protection roaster, high-pressure impregnation jar, it is characterized in that: technical process and the relevant device of producing the carbon ceramic composite material are followed successively by turbulence type superfine mill, sponging granulator, isostatic compaction machine, large-scale atmosphere protection roaster, high-pressure impregnation jar.
2. a kind of isolated plant of producing the carbon ceramic composite material according to claim 1 is characterized in that: described turbulence type superfine mill can prepare ultra fine silicon carbide particle diameter≤1um.
3. a kind of isolated plant of producing the carbon ceramic composite material according to claim 1 is characterized in that: described sponging granulator is prepared into the particle of particle diameter 2～3um behind the grog mist projection granulating.
4. a kind of isolated plant of producing the carbon ceramic composite material according to claim 1 is characterized in that: described isostatic compaction machine, compacting back density reaches 1.65～2.05g/cm3.
5. a kind of isolated plant of producing the carbon ceramic composite material according to claim 1 is characterized in that: described large-scale atmosphere protection roaster, and sintering temperature is 1200～1300 ℃, once sintered density will reach 1.7g/cm3～2.1g/cm3.
6. a kind of isolated plant of producing the carbon ceramic composite material according to claim 1 is characterized in that: described high-pressure impregnation jar, and impregnation pressure is between 3.0MPa-5.0MPa, and density reaches more than the 2.32g/cm3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020587061XU CN201950721U (en) | 2010-11-02 | 2010-11-02 | Special device for producing carbon-ceramic composite material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020587061XU CN201950721U (en) | 2010-11-02 | 2010-11-02 | Special device for producing carbon-ceramic composite material |
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| CN201950721U true CN201950721U (en) | 2011-08-31 |
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| CN201020587061XU Expired - Fee Related CN201950721U (en) | 2010-11-02 | 2010-11-02 | Special device for producing carbon-ceramic composite material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104418593A (en) * | 2013-08-20 | 2015-03-18 | 沈阳铝镁科技有限公司 | High temperature and scouring resistant material and preparation method thereof |
-
2010
- 2010-11-02 CN CN201020587061XU patent/CN201950721U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104418593A (en) * | 2013-08-20 | 2015-03-18 | 沈阳铝镁科技有限公司 | High temperature and scouring resistant material and preparation method thereof |
| CN104418593B (en) * | 2013-08-20 | 2016-09-07 | 沈阳铝镁科技有限公司 | A kind of high temperature resistant, resistance to erosion material and preparation method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20151102 |
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| EXPY | Termination of patent right or utility model |