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A platform for research: civil engineering, architecture and urbanism
Preparation method of carbon-ceramic brake disc
The invention discloses a preparation method of a carbon-ceramic brake disc. The preparation method comprises the following steps: (1) preparation of a carbon fiber preform, (2) CVI densification: putting the prepared carbon fiber preform into a CVI furnace, carrying out CVI densification by taking natural gas as a carbon source gas, and carrying out pre-deposition, accelerated deposition and gap-adjusting deposition to obtain a C/C brake disc, and (3) graphitization treatment: putting the C/C brake disc into a high-temperature heat treatment furnace to obtain the required carbon-ceramic brakedisc. According to the method, the density and the open porosity of the carbon-ceramic prefabricated body can be accurately and effectively controlled, the density of the carbon-ceramic prefabricatedbody prepared by the method can be accurately controlled to be (1.45+/-0.05) g/cm<3>, and the open porosity is (25 +/-5)%.
本发明公开了一种碳陶刹车盘的制备方法，包括如下步骤：①制备碳纤维预制体；②CVI致密化：将上述制备的碳纤维预制体装入CVI炉中，以天然气为碳源气体，进行CVI致密化，经预沉积、加速沉积、调隙沉积后，得到C/C刹车盘；③石墨化处理：将C/C刹车盘放入高温热处理炉中，即可得到所需碳陶刹车盘。本发明可精确有效地控制碳陶预制体的密度和开气孔率，采用本发明制备的碳陶预制体的密度能够精确地控制在(1.45±0.05)g/cm，开气孔率为(25±5)％。
Preparation method of carbon-ceramic brake disc
The invention discloses a preparation method of a carbon-ceramic brake disc. The preparation method comprises the following steps: (1) preparation of a carbon fiber preform, (2) CVI densification: putting the prepared carbon fiber preform into a CVI furnace, carrying out CVI densification by taking natural gas as a carbon source gas, and carrying out pre-deposition, accelerated deposition and gap-adjusting deposition to obtain a C/C brake disc, and (3) graphitization treatment: putting the C/C brake disc into a high-temperature heat treatment furnace to obtain the required carbon-ceramic brakedisc. According to the method, the density and the open porosity of the carbon-ceramic prefabricated body can be accurately and effectively controlled, the density of the carbon-ceramic prefabricatedbody prepared by the method can be accurately controlled to be (1.45+/-0.05) g/cm<3>, and the open porosity is (25 +/-5)%.
本发明公开了一种碳陶刹车盘的制备方法，包括如下步骤：①制备碳纤维预制体；②CVI致密化：将上述制备的碳纤维预制体装入CVI炉中，以天然气为碳源气体，进行CVI致密化，经预沉积、加速沉积、调隙沉积后，得到C/C刹车盘；③石墨化处理：将C/C刹车盘放入高温热处理炉中，即可得到所需碳陶刹车盘。本发明可精确有效地控制碳陶预制体的密度和开气孔率，采用本发明制备的碳陶预制体的密度能够精确地控制在(1.45±0.05)g/cm，开气孔率为(25±5)％。
Preparation method of carbon-ceramic brake disc
一种碳陶刹车盘的制备方法
KONG LINGHUA (author) / DU DONGWEI (author) / ZHAO MEILING (author)
2020-07-03
Patent
Electronic Resource
Chinese
| European Patent Office | 2024
| European Patent Office | 2024
| European Patent Office | 2024
| European Patent Office | 2024