A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Carbon-ceramic brake disc preform and preparation method thereof
The invention relates to the technical field of brake disc preforms, in particular to a carbon-ceramic brake disc preform and a preparation method thereof. Comprising a high-density structural layer and a low-density structural layer, and the high-density structural layer and the low-density structural layer are connected through three-dimensional needling; the density of the high-density structural layer is greater than that of the low-density structural layer; the high-density structural layer comprises a core layer, an air duct layer and a surface layer, and the core layer, the air duct layer and the surface layer are all formed by base cloth and a net tire through three-dimensional needling; and the low-density structure layer is prepared from a net tire through three-dimensional needling. In order to solve the technical problem that defects exist in preparation of a traditional carbon-ceramic brake disc, the high-density structural layer is high in fiber content and can provide the overall strength of the ceramic brake disc, the low-density structural layer is low in fiber content and high in porosity and can facilitate subsequent deposition siliconizing, and the density uniformity of the overall brake disc can be guaranteed after the disc is finally formed; and the content of a silicon carbide matrix is high after disc forming, and stable and excellent friction performance can be provided.
本发明涉及刹车盘预制体技术领域，具体涉及一种碳陶刹车盘预制体及制备方法。包括高密结构层和低密结构层，高密结构层与低密结构层之间通过三维针刺连接；高密结构层的密度大于低密结构层的密度；高密结构层包括芯层、风道层和表层，芯层、风道层和表层均由基布和网胎通过三维针刺制备形成；低密结构层由网胎通过三维针刺制备形成。针对传统碳陶刹车盘的制备存在缺陷的技术问题，本发明中，高密结构层的纤维含量高，可以提供陶刹车盘的整体强度，低密结构层纤维含量低、空隙率高，可以便于后续沉积渗硅，最终成盘后可保证整体刹车盘密度的均匀性，并且成盘后碳化硅基体含量较高，可提供稳定优异的摩擦性能。
Carbon-ceramic brake disc preform and preparation method thereof
The invention relates to the technical field of brake disc preforms, in particular to a carbon-ceramic brake disc preform and a preparation method thereof. Comprising a high-density structural layer and a low-density structural layer, and the high-density structural layer and the low-density structural layer are connected through three-dimensional needling; the density of the high-density structural layer is greater than that of the low-density structural layer; the high-density structural layer comprises a core layer, an air duct layer and a surface layer, and the core layer, the air duct layer and the surface layer are all formed by base cloth and a net tire through three-dimensional needling; and the low-density structure layer is prepared from a net tire through three-dimensional needling. In order to solve the technical problem that defects exist in preparation of a traditional carbon-ceramic brake disc, the high-density structural layer is high in fiber content and can provide the overall strength of the ceramic brake disc, the low-density structural layer is low in fiber content and high in porosity and can facilitate subsequent deposition siliconizing, and the density uniformity of the overall brake disc can be guaranteed after the disc is finally formed; and the content of a silicon carbide matrix is high after disc forming, and stable and excellent friction performance can be provided.
本发明涉及刹车盘预制体技术领域，具体涉及一种碳陶刹车盘预制体及制备方法。包括高密结构层和低密结构层，高密结构层与低密结构层之间通过三维针刺连接；高密结构层的密度大于低密结构层的密度；高密结构层包括芯层、风道层和表层，芯层、风道层和表层均由基布和网胎通过三维针刺制备形成；低密结构层由网胎通过三维针刺制备形成。针对传统碳陶刹车盘的制备存在缺陷的技术问题，本发明中，高密结构层的纤维含量高，可以提供陶刹车盘的整体强度，低密结构层纤维含量低、空隙率高，可以便于后续沉积渗硅，最终成盘后可保证整体刹车盘密度的均匀性，并且成盘后碳化硅基体含量较高，可提供稳定优异的摩擦性能。
Carbon-ceramic brake disc preform and preparation method thereof
一种碳陶刹车盘预制体及制备方法
KONG LINGHUA (author) / ZHENG HONGWEI (author) / CHEN KAI (author) / JIANG MENGNAN (author)
2024-06-14
Patent
Electronic Resource
Chinese
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