CN105481417B - Ultrasonic wave disperses the preparation method of titanium-carbon boride SiClx-carbon fiber friction material - Google Patents
Ultrasonic wave disperses the preparation method of titanium-carbon boride SiClx-carbon fiber friction material Download PDFInfo
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- CN105481417B CN105481417B CN201610014272.6A CN201610014272A CN105481417B CN 105481417 B CN105481417 B CN 105481417B CN 201610014272 A CN201610014272 A CN 201610014272A CN 105481417 B CN105481417 B CN 105481417B
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Abstract
Ultrasonic wave disperses the preparation method of titanium-carbon boride SiClx carbon fiber friction material, which is characterized in that by density be 0.1 ~ 1.8g/cm3Progress ultrasonic wave disperses titanium boride filling processing after graphited carbon fiber blanket carries out Carburization Treatment, depositing silicon silicon processing is carried out again, embedment siliconising processing is carried out again, and then nitrogen treatment is made ultrasonic wave and disperses titanium-carbon boride SiClx carbon fiber friction material in nitrogen atmosphere.The present invention be using graphitized carbon fibre blanket by carburizing, filling titanium boride, depositing silicon silicon, embedment siliconising and nitridation and etc. realize friction material preparation, prepared friction material high intensity, high tenacity, high frictional behaviour are the friction materials adapted under various weather conditions.
Description
Technical field
The present invention relates to a kind of preparation methods of the compound friction material of carbon fiber and ceramic material, belong to composite material system
Standby technical field.
Background technology
Friction material is at present mainly using carbon fiber and carbon(C/C)Composite material is wear-resisting due to C/C composite materials
Performance is relatively low, and people are seeking the preparation method of the higher friction material of wear-resisting property.In addition, C/C composite materials exist
In moist environment, its frictional behaviour can reduce, and serious security risk is brought to using.
The content of the invention
It is an object of the invention to provide a kind of drawbacks described above, realization can be overcome to prepare higher intensity, higher frictional behaviour
And adapt to the preparation method of the friction material of various weather conditions.Its technical solution is:
The preparation method that ultrasonic wave disperses titanium-carbon boride SiClx-carbon fiber friction material be by density be 0.1 ~ 1.8 g/
cm3Progress ultrasonic wave disperses titanium boride filling processing after graphited carbon fiber blanket carries out Carburization Treatment, then carries out depositing silicon
Silicon processing, then carry out embedment siliconising processing, then in nitrogen atmosphere nitrogen treatment be made ultrasonic wave disperse titanium-carbon boride SiClx-
Carbon fiber friction material is as follows:
(1)It is 0.1 ~ 1.8g/cm by density3Graphited carbon fiber blanket be passed through at a temperature of 900 ~ 1100 DEG C propane flammable gas and
The mixed gas of nitrogen, propane flammable gas:The molar ratio of nitrogen is 1:4 ~ 6, flow control in 50 ~ 600ml/min, Carburization Treatment 10 ~
24 obtain carburizing carbon fiber blanket when small;
(2)Above-mentioned carburizing carbon fiber blanket is immersed granularity to be less than in the slurry that 0.3 μm of content is 5 ~ 20% titanium borides, is placed in
Titanium boride is filled in ultrasonic cleaner to handle 30 ~ 50 minutes, and filling titanium-carbon boride tapetum fibrosum is made after taking out drying, wherein,
Slurry is containing the aqueous solution that 0.5 ~ 1.5%pH of ammonium polyacrylate values are 9 ~ 11;
(3)Above-mentioned filling titanium-carbon boride tapetum fibrosum is passed through trichloromethyl silane gas, hydrogen at a temperature of 900 ~ 1100 DEG C
With the mixed gas of argon gas, depositing silicon silicon processing 10 ~ 24 obtains depositing silicon silicon-carbon tapetum fibrosum when small, wherein, trichloromethyl
Silane gas:Hydrogen:The molar ratio of argon gas is 1:3~5:3 ~ 5, flow is 50 ~ 600ml/min;
(4)Above-mentioned depositing silicon silicon-carbon tapetum fibrosum is embedded in siliconising material, 1500 ~ 1800 DEG C of the temperature in vacuum atmosphere
Siliconising carbon fiber blanket is made when small in lower siliconising processing 3 ~ 5, wherein, siliconising material is silica flour 30 ~ 50% and a diameter of 0.5 ~ 3mm carbon granules
It is made after the uniform combination drying of polyvinyl alcohol water solution that 50 ~ 70% additional 1 ~ 3% concentration of mixture is 0.2 ~ 0.6%;
(5)Ultrasonic wave is made when nitrogen treatment 10 ~ 24 is small at a temperature of 1350 ~ 1700 DEG C in above-mentioned siliconising carbon fiber blanket
Scattered titanium-carbon boride SiClx-carbon fiber friction material.
Compared with prior art, the present invention its advantage is:
1st, the carbon fiber blanket that the present invention uses is graphited carbon fiber blanket or graphited needled carbon tapetum fibrosum or stone
The weaving carbon fiber cloth or graphited 3 D weaving carbon fiber of inkization knit block;
2nd, friction material prepared by the present invention is high-strength by the compound one kind of carbon fiber and carborundum, titanium boride, silicon nitride
Friction material under degree, high frictional behaviour, the various weather conditions of adaptation;
3rd, by carburizing, filling titanium boride, depositing silicon silicon, embedment siliconising and nitridation and etc. realize friction material system
It is standby, two steps of carburizing and depositing silicon silicon be in order to carbon fiber surface is protected not to be damaged and carbon fiber surface assign charcoal
Coating and coat of silicon carbide, because coat of silicon carbide can stop the infiltration of silicon steam, coat of silicon carbide one during siliconising
Denier leaks, and carbide coatings and silicon steam reaction generation carborundum further stop silicon steam, so as to protect carbon fiber surface from
It destroys;
4th, carbon fiber blanket has the very high porosity, depends merely on carburizing and depositing silicon silicon may require that and be lot more time to reach
Densification, manufacture cost is very high, will be very using the gap of filling titanium boride and the method filling carbon fiber blanket for being embedded to siliconising
It is convenient, it is time saving and energy saving, while fill titanium boride and can further improve the wear-resisting property of friction material;
5th, the present invention utilizes the flexibility of carburizing carbon fiber, generates microvesicle in the slurry by the effect of ultrasonic wave, works as sound
When pressure or the sound intensity are reached to a certain degree, microvesicle will expand rapidly, then be closed suddenly again, and the moment that microvesicle is closed generates punching
Ripple is hit, makes the pressure that about 1012Pa is generated around microvesicle, boride titanium particle pressure is filled into the gap of carbon fiber blanket, is reached
The purpose of calking;
6th, titanium boride filling processing is disperseed using slurry, boride titanium particle suspendability can be effectively improved, improve filling
Efficiency, boride titanium particle is firmly combined together by generation silicon nitride in nitridation process;
7th, it is 1420 DEG C or so since the metallic silicon fusing point of infiltration is relatively low, the temperature of friction material working face is instantaneously up near
2000 DEG C, metallic silicon is nitrogenized into generation silicon nitride, the friction material of microcellular structure is formed, friction material work can be increased substantially
Make the tolerable temperature in face, improve the performance and used life of friction material.
Specific embodiment
Embodiment 1
(1)It is 1.8g/cm by density3Graphited carbon fiber blanket is passed through the mixed of propane flammable gas and nitrogen at a temperature of 900 DEG C
Close gas, propane flammable gas:The molar ratio of nitrogen is 1:4, flow control is in 50ml/min, acquisition carburizing carbon when Carburization Treatment 24 is small
Tapetum fibrosum;
(2)Above-mentioned carburizing carbon fiber blanket is immersed granularity to be less than in the slurry that 0.3 μm of content is 5% titanium boride, is placed in ultrasound
Titanium boride is filled in ripple washer to handle 50 minutes, filling titanium-carbon boride tapetum fibrosum is made after taking out drying, slurry is containing poly- third
Olefin(e) acid ammonium 1.5%pH values are 9 aqueous solution;
(3)Above-mentioned filling titanium-carbon boride tapetum fibrosum is passed through trichloromethyl silane gas, hydrogen and argon gas at a temperature of 900 DEG C
Mixed gas, trichloromethyl silane gas:Hydrogen:The molar ratio of argon gas is 1:5:5, flow control is in 50ml/min, deposition carbon
SiClx processing 24 obtains depositing silicon silicon-carbon tapetum fibrosum when small;
(4)Above-mentioned depositing silicon silicon-carbon tapetum fibrosum is embedded in siliconising material, is oozed in vacuum atmosphere at a temperature of 1500 DEG C
Siliconising carbon fiber blanket is made in silicon 5 when small, wherein, siliconising material is silica flour 30% and 70% additional 5% concentration of a diameter of 0.5mm carbon granules is
0.2% polyvinyl alcohol water solution is dry after uniformly mixing to be made;
(5)By above-mentioned siliconising carbon fiber blanket be made when nitrogen treatment 10 is small at a temperature of 1700 DEG C titanium-carbon boride SiClx-
Carbon fiber friction material.
Embodiment 2
(1)It is 0.8g/cm by density3Graphited carbon fiber blanket is passed through the mixed of propane flammable gas and nitrogen at a temperature of 1000 DEG C
Close gas, propane flammable gas:The molar ratio of nitrogen is 1:5, flow control obtains carburizing in 350ml/min, Carburization Treatment 18 when small
Carbon fiber blanket;
(2)Above-mentioned carburizing carbon fiber blanket is immersed granularity to be less than in the slurry that 0.3 μm of content is 12% titanium boride, is placed in super
Titanium boride is filled in sound wave washer to handle 40 minutes, filling titanium-carbon boride tapetum fibrosum is made after taking out drying, slurry is containing poly-
Ammonium acrylate 1%pH values are 10 aqueous solution;
(3)Above-mentioned filling titanium-carbon boride tapetum fibrosum is passed through trichloromethyl silane gas, hydrogen and argon at a temperature of 1000 DEG C
The mixed gas of gas, trichloromethyl silane gas:Hydrogen:The molar ratio of argon gas is 1:4:4, flow control is in 350ml/min, deposition
Carborundum processing 18 obtains depositing silicon silicon-carbon tapetum fibrosum when small;
(4)Above-mentioned depositing silicon silicon-carbon tapetum fibrosum is embedded in siliconising material, is oozed in vacuum atmosphere at a temperature of 1650 DEG C
Siliconising carbon fiber blanket is made in silicon 4 when small, wherein, siliconising material is silica flour 40% and 60% additional 10% concentration of a diameter of 2mm carbon granules is
0.4% polyvinyl alcohol water solution is dry after uniformly mixing to be made;
(5)By above-mentioned siliconising carbon fiber blanket be made when nitrogen treatment 18 is small at a temperature of 1550 DEG C titanium-carbon boride SiClx-
Carbon fiber friction material.
Embodiment 3
(1)It is 0.1g/cm by density3Graphited carbon fiber blanket is passed through the mixed of propane flammable gas and nitrogen at a temperature of 1100 DEG C
Close gas, propane flammable gas:The molar ratio of nitrogen is 1:6, flow control obtains carburizing in 600ml/min, Carburization Treatment 10 when small
Carbon fiber blanket;
(2)Above-mentioned carburizing carbon fiber blanket is immersed granularity to be less than in the slurry that 0.3 μm of content is 20% titanium boride, is placed in super
Titanium boride is filled in sound wave washer to handle 30 minutes, filling titanium-carbon boride tapetum fibrosum is made after taking out drying, slurry is containing poly-
Ammonium acrylate 0.5%pH values are 11 aqueous solution;
(3)Above-mentioned filling titanium-carbon boride tapetum fibrosum is passed through trichloromethyl silane gas, hydrogen and argon at a temperature of 1100 DEG C
The mixed gas of gas, trichloromethyl silane gas:Hydrogen:The molar ratio of argon gas is 1: 3:3, flow control is sunk in 600ml/min
Carbon distribution SiClx processing 10 obtains depositing silicon silicon-carbon tapetum fibrosum when small;
(4)Above-mentioned depositing silicon silicon-carbon tapetum fibrosum is embedded in siliconising material, is oozed in vacuum atmosphere at a temperature of 1800 DEG C
Siliconising carbon fiber blanket is made in silicon 3 when small, wherein, siliconising material is silica flour 50% and 50% additional 15% concentration of a diameter of 3mm carbon granules is
0.6% polyvinyl alcohol water solution is dry after uniformly mixing to be made;
(5)By above-mentioned siliconising carbon fiber blanket be made when nitrogen treatment 24 is small at a temperature of 1350 DEG C titanium-carbon boride SiClx-
Carbon fiber friction material.
Claims (1)
1. ultrasonic wave disperses the preparation method of titanium-carbon boride SiClx-carbon fiber friction material, which is characterized in that by density for 0.1 ~
1.8g/cm3Progress ultrasonic wave disperses titanium boride filling processing after graphited carbon fiber blanket carries out Carburization Treatment, then is deposited
Carborundum processing, then embedment siliconising processing is carried out, then nitrogen treatment is made ultrasonic wave and disperses titanium-carbon boride in nitrogen atmosphere
SiClx-carbon fiber friction material, is as follows:
(1)It is 0.1 ~ 1.8g/cm by density3Graphited carbon fiber blanket is passed through propane flammable gas and nitrogen at a temperature of 900 ~ 1100 DEG C
Mixed gas, propane flammable gas:The molar ratio of nitrogen is 1:4 ~ 6, in 50 ~ 600mL/min, Carburization Treatment 10 ~ 24 is small for flow control
When obtain carburizing carbon fiber blanket;
(2)Above-mentioned carburizing carbon fiber blanket is immersed granularity to be less than in the slurry that 0.3 μm of content is 5 ~ 20% titanium borides, is placed in ultrasound
Titanium boride is filled in ripple washer to handle 30 ~ 50 minutes, and filling titanium-carbon boride tapetum fibrosum is made after taking out drying, wherein, slurry
To contain the aqueous solution that 0.5 ~ 1.5%pH of ammonium polyacrylate values are 9 ~ 11;
(3)Above-mentioned filling titanium-carbon boride tapetum fibrosum is passed through trichloromethyl silane gas, hydrogen and argon at a temperature of 900 ~ 1100 DEG C
The mixed gas of gas, depositing silicon silicon processing 10 ~ 24 obtain depositing silicon silicon-carbon tapetum fibrosum when small, wherein, trichloromethyl silane
Gas:Hydrogen:The molar ratio of argon gas is 1:3~5:3 ~ 5, flow is 50 ~ 600mL/min;
(4)Above-mentioned depositing silicon silicon-carbon tapetum fibrosum is embedded in siliconising material, is oozed in vacuum atmosphere at a temperature of 1500 ~ 1800 DEG C
Siliconising carbon fiber blanket is made when small in silicon processing 3 ~ 5, wherein, siliconising material for silica flour 30 ~ 50% and a diameter of 0.5 ~ 3mm carbon granules 50 ~
It is made after the uniform combination drying of polyvinyl alcohol water solution that 70% additional 1 ~ 3% concentration of mixture is 0.2 ~ 0.6%;
(5)Above-mentioned siliconising carbon fiber blanket is made ultrasonic wave when nitrogen treatment 10 ~ 24 is small at a temperature of 1350 ~ 1700 DEG C to disperse
Titanium-carbon boride SiClx-carbon fiber friction material.
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