A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Rapid preparation method of carbon/carbon brake disc
The invention provides a rapid preparation method of a carbon/carbon brake disc, which comprises the following steps: in a chemical vapor infiltration stage, alternately placing inner graphite backing rings and outer graphite backing rings between carbon/carbon brake disc preforms, and changing a carbon source gas flow path, so that the brake disc forms a pressure difference in the thickness direction and the radial direction; meanwhile, by controlling the temperature of a carbon source gas inlet, adjusting the internal and external pressure difference of the stock columns and controlling the time of each disc surface of the brake disc in the cavities of the internal and external stock columns, the densification time of the brake disc prefabricated body is effectively shortened, the uniformity of the carbon/carbon brake disc in the thickness direction and the radial direction is improved, and rapid and high-quality densification of the carbon/carbon composite material brake disc is achieved. The surface of the prepared carbon/carbon brake disc is not prone to crusting, the preparation efficiency is high, and the density of the brake disc is uniform.
本发明提供了一种炭/炭刹车盘快速制备方法，在化学气相渗透阶段，通过在炭/炭刹车盘预制体间交替轮换放置内石墨垫环与外石墨垫环，改变碳源气体流动路线，使刹车盘在厚度方向、径向方向形成压力差；同时通过控制碳源气体入口温度、调节料柱内外压力差、控制刹车盘各盘面在内外料柱腔体的时间，有效缩短了对刹车盘预制体的致密化时间，提高了炭/炭刹车盘厚度方向、径向方向的均匀性，实现炭/炭复合材料刹车盘的快速高质量致密。采样本发明方法制备该制备炭/炭刹车盘表面不易结壳，制备效率高，刹车盘密度均匀。
Rapid preparation method of carbon/carbon brake disc
The invention provides a rapid preparation method of a carbon/carbon brake disc, which comprises the following steps: in a chemical vapor infiltration stage, alternately placing inner graphite backing rings and outer graphite backing rings between carbon/carbon brake disc preforms, and changing a carbon source gas flow path, so that the brake disc forms a pressure difference in the thickness direction and the radial direction; meanwhile, by controlling the temperature of a carbon source gas inlet, adjusting the internal and external pressure difference of the stock columns and controlling the time of each disc surface of the brake disc in the cavities of the internal and external stock columns, the densification time of the brake disc prefabricated body is effectively shortened, the uniformity of the carbon/carbon brake disc in the thickness direction and the radial direction is improved, and rapid and high-quality densification of the carbon/carbon composite material brake disc is achieved. The surface of the prepared carbon/carbon brake disc is not prone to crusting, the preparation efficiency is high, and the density of the brake disc is uniform.
本发明提供了一种炭/炭刹车盘快速制备方法，在化学气相渗透阶段，通过在炭/炭刹车盘预制体间交替轮换放置内石墨垫环与外石墨垫环，改变碳源气体流动路线，使刹车盘在厚度方向、径向方向形成压力差；同时通过控制碳源气体入口温度、调节料柱内外压力差、控制刹车盘各盘面在内外料柱腔体的时间，有效缩短了对刹车盘预制体的致密化时间，提高了炭/炭刹车盘厚度方向、径向方向的均匀性，实现炭/炭复合材料刹车盘的快速高质量致密。采样本发明方法制备该制备炭/炭刹车盘表面不易结壳，制备效率高，刹车盘密度均匀。
Rapid preparation method of carbon/carbon brake disc
一种炭/炭刹车盘的快速制备方法
LI XUGUANG (author) / LI DUAN (author) / DI XIAOGANG (author) / ZOU WEN (author) / ZHAO JING (author) / LI LINSONG (author) / SHI JUNXI (author)
2024-12-10
Patent
Electronic Resource
Chinese
Modified slurry for carbon-carbon brake disc and preparation method of carbon-carbon brake disc
| European Patent Office | 2020
Preparation method of carbon/carbon composite material brake disc
| European Patent Office | 2022