A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Rapid preparation method of carbon-ceramic brake disc
The invention discloses a rapid preparation method of a carbon-ceramic brake disc. The preparation method comprises the following steps: preparing a variable-density carbon fiber preform, processing the preform to form the shape of the brake disc, carrying out CVI densification, and carrying out melt siliconizing to prepare the carbon-ceramic brake disc. In the preparation process of the prefabricated body, the variable-density prefabricated body is adopted, meanwhile, processing is conducted in the prefabricated body stage, the deposition time can be greatly shortened, and rapid preparation of the carbon-ceramic brake disc is achieved. In addition, the lower layer of the prefabricated body is mainly composed of the mesh tire layer and is low in density, a denser ceramic base body is formed through deposition siliconizing and serves as a friction face of the carbon-ceramic brake disc, the abrasion resistance and the oxidation resistance of the brake disc can be improved, and the middle layer and the upper layer of the prefabricated body are higher in density and needling density, so that heat dissipation and overall enhancement of the brake disc are facilitated. The prepared carbon-ceramic brake disc is uniform in density, the production period is shortened, the production cost is greatly reduced, and the carbon-ceramic brake disc has important significance in promoting popularization and application of the carbon-ceramic brake disc.
本发明公开了一种碳陶制动盘的快速制备方法。首先制备变密度碳纤维预制体，接着将预制体加工出制动盘外形，再对其进行CVI增密，最后熔融渗硅制备出碳陶制动盘。本发明在预制体制备过程中，采用变密度的预制体，同时在预制体阶段先进行加工，可以大幅缩短沉积时间，实现碳陶制动盘的快速制备。另外，预制体下层以网胎层为主，密度较低，通过沉积渗硅形成更加致密的陶瓷基体，作为碳陶制动盘的摩擦面，可以提高刹车盘的耐磨性以及抗氧化性能，而预制体中层以及上层采用更高密度的预制体及针刺密度，对刹车盘的散热及整体增强更为有利。本发明制备的碳陶制动盘密度均匀，生产周期缩短、生产成本大幅下降，对推动碳陶制动盘普及应用有重要的意义。
Rapid preparation method of carbon-ceramic brake disc
The invention discloses a rapid preparation method of a carbon-ceramic brake disc. The preparation method comprises the following steps: preparing a variable-density carbon fiber preform, processing the preform to form the shape of the brake disc, carrying out CVI densification, and carrying out melt siliconizing to prepare the carbon-ceramic brake disc. In the preparation process of the prefabricated body, the variable-density prefabricated body is adopted, meanwhile, processing is conducted in the prefabricated body stage, the deposition time can be greatly shortened, and rapid preparation of the carbon-ceramic brake disc is achieved. In addition, the lower layer of the prefabricated body is mainly composed of the mesh tire layer and is low in density, a denser ceramic base body is formed through deposition siliconizing and serves as a friction face of the carbon-ceramic brake disc, the abrasion resistance and the oxidation resistance of the brake disc can be improved, and the middle layer and the upper layer of the prefabricated body are higher in density and needling density, so that heat dissipation and overall enhancement of the brake disc are facilitated. The prepared carbon-ceramic brake disc is uniform in density, the production period is shortened, the production cost is greatly reduced, and the carbon-ceramic brake disc has important significance in promoting popularization and application of the carbon-ceramic brake disc.
本发明公开了一种碳陶制动盘的快速制备方法。首先制备变密度碳纤维预制体，接着将预制体加工出制动盘外形，再对其进行CVI增密，最后熔融渗硅制备出碳陶制动盘。本发明在预制体制备过程中，采用变密度的预制体，同时在预制体阶段先进行加工，可以大幅缩短沉积时间，实现碳陶制动盘的快速制备。另外，预制体下层以网胎层为主，密度较低，通过沉积渗硅形成更加致密的陶瓷基体，作为碳陶制动盘的摩擦面，可以提高刹车盘的耐磨性以及抗氧化性能，而预制体中层以及上层采用更高密度的预制体及针刺密度，对刹车盘的散热及整体增强更为有利。本发明制备的碳陶制动盘密度均匀，生产周期缩短、生产成本大幅下降，对推动碳陶制动盘普及应用有重要的意义。
Rapid preparation method of carbon-ceramic brake disc
一种碳陶制动盘的快速制备方法
ZHU SUHUA (author) / YAN BING (author) / BAO SIQUAN (author) / LIU YIJUN (author)
2021-04-27
Patent
Electronic Resource
Chinese
| European Patent Office | 2024
| European Patent Office | 2024
| European Patent Office | 2024