CN105622149A - Preparation method for resin-dispersed tantalum carbide based silicon carbide-carbon fiber friction material - Google Patents
Preparation method for resin-dispersed tantalum carbide based silicon carbide-carbon fiber friction material Download PDFInfo
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Abstract
The invention provides a preparation method for a resin-dispersed tantalum carbide based silicon carbide-carbon fiber friction material, which is characterized in that: a graphitized carbon fiber blanket with the density of 0.1-1.8g/cm3 is subjected to a resin-dispersed tantalum carbide filling treatment after a carburizing treatment, followed by a silicon carbide depositing treatment, a buried siliconizing treatment and a nitriding treatment in a nitrogen atmosphere, to prepare the resin-dispersed tantalum carbide based silicon carbide-carbon fiber friction material. According to the preparation method for the resin-dispersed tantalum carbide based silicon carbide-carbon fiber friction material provided by the invention, the friction material is prepared by carburizing, tantalum carbide filling, silicon carbide depositing, buried siliconizing and nitriding the graphitized carbon fiber blanket, and the prepared friction material has the advantages of high strength, high tenacity and high friction performance, and is adapted to various climates.
Description
Technical field
The preparation method that the present invention relates to the friction material of a kind of carbon fiber and ceramic material compound, belongs to technical field of composite preparation.
Background technology
What friction material currently mainly adopted is carbon fiber and carbon (C/C) composite, owing to the anti-wear performance of C/C composite is relatively low, and the preparation method that people are seeking the higher friction material of anti-wear performance. It addition, C/C composite is in a humid environment, its frictional behaviour can reduce, and brings serious potential safety hazard to using.
Summary of the invention
It is an object of the invention to provide and a kind of can overcome drawbacks described above, realize preparation higher intensity, higher frictional behaviour and adapt to the preparation method of friction material of various weather conditions. Its technical scheme is:
The preparation method of resin dispersion ramet silicon carbide?carbon fiber friction material is to be 0.1 ~ 1.8g/cm by density3Graphited carbon fiber blanket carries out resin dispersion ramet filling and processes after carrying out Carburization Treatment, it is deposited carborundum again to process, carrying out embedment siliconising again to process, then in nitrogen atmosphere, nitrogen treatment prepares resin dispersion ramet silicon carbide?carbon fiber friction material, specifically comprises the following steps that
(1) it is 0.1 ~ 1.8g/cm by density3Graphited carbon fiber blanket passes into the mixing gas of propane flammable gas and nitrogen at 900 ~ 1100 DEG C of temperature, propane flammable gas: the mol ratio of nitrogen is 1:4 ~ 6, and flow-control is at 50 ~ 600ml/min, and Carburization Treatment obtains carburizing carbon fiber blanket in 10 ~ 24 hours;
(2) above-mentioned carburizing carbon fiber blanket is immersed in the resin slurry that granularity is 5 ~ 20% ramets less than 0.3 ��m of content, it is placed in ultrasonic cleaner and fills ramet process 30 ~ 50 minutes, taking out dried preparing and fill ramet carbon fiber blanket, wherein resin slurry is the alcoholic solution containing phenolic resin 5 ~ 20%;
(3) above-mentioned filling ramet carbon fiber blanket is passed at 900 ~ 1100 DEG C of temperature the mixing gas of trichloromethyl silane gas, hydrogen and argon, depositing silicon silicon processes 10 ~ 24 hours and obtains depositing silicon silicon-carbon tapetum fibrosum, wherein, trichloromethyl silane gas: hydrogen: the mol ratio of argon is 1:3 ~ 5:3 ~ 5, flow is 50 ~ 600ml/min;
(4) above-mentioned depositing silicon silicon-carbon tapetum fibrosum is imbedded in siliconising material, under vacuum atmosphere, at the temperature of 1500 ~ 1800 DEG C, siliconising processes 3 ~ 5 hours prepared siliconising carbon fiber blankets, wherein, siliconising material is silica flour 30 ~ 50% and additional 5 ~ 15% concentration of mixture that diameter is 0.5 ~ 3mm carbon granule 50 ~ 70% are that 0.2 ~ 0.6% polyvinyl alcohol water solution Homogeneous phase mixing prepares after drying;
(5) by above-mentioned siliconising carbon fiber blanket 10 ~ 24 hours prepared resin dispersion ramet silicon carbide?carbon fiber friction materials of nitrogen treatment at the temperature of 1350 ~ 1700 DEG C.
Compared with prior art, its advantage is the present invention:
1, the carbon fiber blanket that the present invention uses is graphited carbon fiber blanket, or graphited needled carbon tapetum fibrosum, or graphited weaving carbon fiber cloth, or graphited 3 D weaving carbon fiber knits block;
2, friction material prepared by the present invention is by carbon fiber and carborundum, ramet, a kind of high intensity of silicon nitride compound, high frictional behaviour, the friction material that adapts under various weather conditions;
3, by carburizing, fill ramet, depositing silicon silicon, embedment siliconising and the step such as nitrogenize and realize the preparation of friction material, carburizing and two steps of depositing silicon silicon be in order to protect carbon fiber surface not to be damaged and carbon fiber surface give carbon coating and coat of silicon carbide, because coat of silicon carbide can stop the infiltration of silicon steam in the process of siliconising, coat of silicon carbide is once seepage, carbide coatings and silicon steam reaction generate carborundum and stop silicon steam further, thus protecting carbon fiber surface not to be damaged;
4, carbon fiber blanket has the significantly high porosity, depend merely on carburizing and depositing silicon silicon may require that and is lot more time to reach densification, manufacturing cost is significantly high, the space adopting the method filling carbon fiber blanket filling ramet and embedment siliconising will be very convenient, time saving and energy saving, fill ramet simultaneously and can improve the anti-wear performance of friction material further;
5, the present invention utilizes the pliability of carburizing carbon fiber, microvesicle is produced by hyperacoustic resin slurry that acts on, when acoustic pressure or the sound intensity arrive to a certain degree, microvesicle will expand rapidly, then closing suddenly again, the moment of microvesicle Guan Bi produces shock wave, makes to produce around microvesicle the pressure of about 1012pa, force tantalum carbide particles to be filled in the space of carbon fiber blanket, reach the purpose of calking;
6, resin slurry dispersion ramet filling is adopted to process, tantalum carbide particles suspendability can be effectively improved, improve charging efficiency, when tantalum carbide particles is wrapped up by the activated carbon formed after resin high temperature carbonization, siliconising process forms carborundum with silicon steam reaction, generates carborundum and tantalum carbide particles is firmly combined together;
7, due to penetrate into metallic silicon fusing point relatively low be about 1420 DEG C, the temperature of friction material work surface is instantaneous up to nearly 2000 DEG C, generation silicon nitride will be nitrogenized at metallic silicon, form the friction material of microcellular structure, the tolerable temperature of friction material work surface can be increased substantially, improve the service life of friction material.
Detailed description of the invention
Embodiment 1
(1) it is 1.8g/cm by density3Graphited carbon fiber blanket passes into the mixing gas of propane flammable gas and nitrogen at 900 DEG C of temperature, propane flammable gas: nitrogen mol ratio be 1:4, flow-control is at 50ml/min, and Carburization Treatment obtains carburizing carbon fiber blanket in 24 hours;
(2) above-mentioned carburizing carbon fiber blanket is immersed in the ramet resin slurry that granularity less than 0.3 ��m of content is 5%, it is placed in ultrasonic cleaner and fills ramet process 50 minutes, taking out dried preparing and fill ramet carbon fiber blanket, resin slurry is the alcoholic solution containing phenolic resin 5%;
(3) above-mentioned filling ramet carbon fiber blanket is passed at 900 DEG C of temperature the mixing gas of trichloromethyl silane gas, hydrogen and argon, trichloromethyl silane gas: hydrogen: the mol ratio of argon is 1:5:5, flow-control is at 50ml/min, and depositing silicon silicon processes 24 hours and obtains depositing silicon silicon-carbon tapetum fibrosum;
(4) above-mentioned depositing silicon silicon-carbon tapetum fibrosum is imbedded in siliconising material, 5 hours prepared siliconising carbon fiber blankets of siliconising at the temperature of 1500 DEG C under vacuum atmosphere, wherein, siliconising material be silica flour 30% and diameter to be additional 5% concentration of 0.5mm carbon granule 70% be 0.2% polyvinyl alcohol water solution Homogeneous phase mixing after dry prepare;
(5) by above-mentioned siliconising carbon fiber blanket 10 hours prepared ramet silicon carbide?carbon fiber friction materials of nitrogen treatment at the temperature of 1700 DEG C.
Embodiment 2
(1) it is 0.8g/cm by density3Graphited carbon fiber blanket passes into the mixing gas of propane flammable gas and nitrogen at 1000 DEG C of temperature, propane flammable gas: nitrogen mol ratio be 1:5, flow-control is at 350ml/min, and Carburization Treatment obtains carburizing carbon fiber blanket in 18 hours;
(2) above-mentioned carburizing carbon fiber blanket is immersed in the ramet resin slurry that granularity less than 0.3 ��m of content is 12%, it is placed in ultrasonic cleaner and fills ramet process 40 minutes, taking out dried preparing and fill ramet carbon fiber blanket, resin slurry is the alcoholic solution containing phenolic resin 12%;
(3) above-mentioned filling ramet carbon fiber blanket is passed at 1000 DEG C of temperature the mixing gas of trichloromethyl silane gas, hydrogen and argon, trichloromethyl silane gas: hydrogen: the mol ratio of argon is 1:4:4, flow-control is at 350ml/min, and depositing silicon silicon processes 18 hours and obtains depositing silicon silicon-carbon tapetum fibrosum;
(4) above-mentioned depositing silicon silicon-carbon tapetum fibrosum is imbedded in siliconising material, 4 hours prepared siliconising carbon fiber blankets of siliconising at the temperature of 1650 DEG C under vacuum atmosphere, wherein, siliconising material be silica flour 40% and diameter to be additional 10% concentration of 2mm carbon granule 60% be 0.4% polyvinyl alcohol water solution Homogeneous phase mixing after dry prepare;
(5) by above-mentioned siliconising carbon fiber blanket 18 hours prepared ramet silicon carbide?carbon fiber friction materials of nitrogen treatment at the temperature of 1550 DEG C.
Embodiment 3
(1) it is 0.1g/cm by density3Graphited carbon fiber blanket passes into the mixing gas of propane flammable gas and nitrogen at 1100 DEG C of temperature, propane flammable gas: nitrogen mol ratio be 1:6, flow-control is at 600ml/min, and Carburization Treatment obtains carburizing carbon fiber blanket in 10 hours;
(2) above-mentioned carburizing carbon fiber blanket is immersed in the ramet resin slurry that granularity less than 0.3 ��m of content is 20%, it is placed in ultrasonic cleaner and fills ramet process 30 minutes, taking out dried preparing and fill ramet carbon fiber blanket, resin slurry is the alcoholic solution containing phenolic resin 20%;
(3) above-mentioned filling ramet carbon fiber blanket is passed at 1100 DEG C of temperature the mixing gas of trichloromethyl silane gas, hydrogen and argon, trichloromethyl silane gas: hydrogen: the mol ratio of argon is 1:3:3, flow-control is at 600ml/min, and depositing silicon silicon processes 10 hours and obtains depositing silicon silicon-carbon tapetum fibrosum;
(4) above-mentioned depositing silicon silicon-carbon tapetum fibrosum is imbedded in siliconising material, 3 hours prepared siliconising carbon fiber blankets of siliconising at the temperature of 1800 DEG C under vacuum atmosphere, wherein, siliconising material be silica flour 50% and diameter to be additional 15% concentration of 3mm carbon granule 50% be 0.6% polyvinyl alcohol water solution Homogeneous phase mixing after dry prepare;
(5) by above-mentioned siliconising carbon fiber blanket 24 hours prepared ramet silicon carbide?carbon fiber friction materials of nitrogen treatment at the temperature of 1350 DEG C.
Claims (1)
1. the preparation method of resin dispersion ramet silicon carbide?carbon fiber friction material, it is characterised in that be 0.1 ~ 1.8g/cm by density3Graphited carbon fiber blanket carries out resin dispersion ramet filling and processes after carrying out Carburization Treatment, it is deposited carborundum again to process, carrying out embedment siliconising again to process, then in nitrogen atmosphere, nitrogen treatment prepares resin dispersion ramet silicon carbide?carbon fiber friction material, specifically comprises the following steps that
(1) it is 0.1 ~ 1.8g/cm by density3Graphited carbon fiber blanket passes into the mixing gas of propane flammable gas and nitrogen at 900 ~ 1100 DEG C of temperature, propane flammable gas: the mol ratio of nitrogen is 1:4 ~ 6, and flow-control is at 50 ~ 600ml/min, and Carburization Treatment obtains carburizing carbon fiber blanket in 10 ~ 24 hours;
(2) above-mentioned carburizing carbon fiber blanket is immersed in the resin slurry that granularity is 5 ~ 20% ramets less than 0.3 ��m of content, it is placed in ultrasonic cleaner and fills ramet process 30 ~ 50 minutes, taking out dried preparing and fill ramet carbon fiber blanket, wherein resin slurry is the alcoholic solution containing phenolic resin 5 ~ 20%;
(3) above-mentioned filling ramet carbon fiber blanket is passed at 900 ~ 1100 DEG C of temperature the mixing gas of trichloromethyl silane gas, hydrogen and argon, depositing silicon silicon processes 10 ~ 24 hours and obtains depositing silicon silicon-carbon tapetum fibrosum, wherein, trichloromethyl silane gas: hydrogen: the mol ratio of argon is 1:3 ~ 5:3 ~ 5, flow is 50 ~ 600ml/min;
(4) above-mentioned depositing silicon silicon-carbon tapetum fibrosum is imbedded in siliconising material, under vacuum atmosphere, at the temperature of 1500 ~ 1800 DEG C, siliconising processes 3 ~ 5 hours prepared siliconising carbon fiber blankets, wherein, siliconising material is silica flour 30 ~ 50% and additional 5 ~ 15% concentration of mixture that diameter is 0.5 ~ 3mm carbon granule 50 ~ 70% are that 0.2 ~ 0.6% polyvinyl alcohol water solution Homogeneous phase mixing prepares after drying;
(5) by above-mentioned siliconising carbon fiber blanket 10 ~ 24 hours prepared resin dispersion ramet silicon carbide?carbon fiber friction materials of nitrogen treatment at the temperature of 1350 ~ 1700 DEG C.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508591A (en) * | 2008-11-10 | 2009-08-19 | 西北工业大学 | Process for producing composite material of Ti3SiC2 modified C/SiC |
| CN103288468A (en) * | 2013-05-14 | 2013-09-11 | 大连理工大学 | Preparation method for fiber reinforced carbon-silicon carbide-zirconium carbide-based composite material |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508591A (en) * | 2008-11-10 | 2009-08-19 | 西北工业大学 | Process for producing composite material of Ti3SiC2 modified C/SiC |
| CN103288468A (en) * | 2013-05-14 | 2013-09-11 | 大连理工大学 | Preparation method for fiber reinforced carbon-silicon carbide-zirconium carbide-based composite material |
Non-Patent Citations (2)
| Title |
|---|
| 王毅等: "三维针刺C/(SiC–TaC)复合材料的烧蚀性能及烧蚀机理", 《硅酸盐学报》 * |
| 陈杰等: "3D针刺C/SiC-TaC复合材料的热膨胀性能", 《复合材料学报》 * |
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