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A platform for research: civil engineering, architecture and urbanism
Method for preparing carbon-ceramic brake disc by combining porous carbon/carbon green body with RMI
The invention discloses a method for preparing a carbon-ceramic brake disc by combining a porous carbon/carbon green body with RMI, which comprises the following steps: mixing resin, an organic solvent, a curing agent and a catalyst and/or a pore-forming agent to prepare a resin-based solution; impregnating the carbon fiber three-dimensional needled preform in a resin-based solution, and then performing curing and cracking to obtain a porous carbon/carbon blank; finally, after machining, ceramization is carried out through a reactive melt permeation method, and the composite material is prepared. The preparation process is simple, the period is short, the cost is low, the nickel source catalyst is added in the PIP technology to catalyze conversion of large glass blocks generated after high-temperature pyrolysis of organic resin into small carbon blocks with higher graphitization degree, the pore-forming agent is added to promote conversion of glassy carbon into a porous carbon structure, subsequent RMI is more facilitated, and the preparation method is suitable for industrial production. The problems of high residual carbon rate, poor mechanical property, low graphitization degree, poor uniformity and the like in the preparation process of the carbon-ceramic brake disc are solved.
本发明公开了一种多孔碳/碳坯体结合RMI制备碳陶刹车盘的方法，其方法包括以下步骤：将树脂、有机溶剂和固化剂以及催化剂和/或成孔剂混合，制得树脂基溶液；将碳纤维三维针刺预制体浸渍于树脂基溶液中，然后经固化、裂解制得多孔碳/碳坯体；最后经机械加工后，通过反应熔体渗透法进行陶瓷化，制得。本发明制备过程简单、周期短，成本低，通过在PIP工艺中添加镍源催化剂，催化有机树脂高温裂解后产生的大块玻璃转化为小块石墨化程度更高的碳，通过添加成孔剂促使玻璃碳转化为多孔碳结构，更有利于后续RMI的进行，解决了碳陶刹车盘在制备过程中出现的残碳率高、力学性能差、石墨化程度低、均匀性差等问题。
Method for preparing carbon-ceramic brake disc by combining porous carbon/carbon green body with RMI
The invention discloses a method for preparing a carbon-ceramic brake disc by combining a porous carbon/carbon green body with RMI, which comprises the following steps: mixing resin, an organic solvent, a curing agent and a catalyst and/or a pore-forming agent to prepare a resin-based solution; impregnating the carbon fiber three-dimensional needled preform in a resin-based solution, and then performing curing and cracking to obtain a porous carbon/carbon blank; finally, after machining, ceramization is carried out through a reactive melt permeation method, and the composite material is prepared. The preparation process is simple, the period is short, the cost is low, the nickel source catalyst is added in the PIP technology to catalyze conversion of large glass blocks generated after high-temperature pyrolysis of organic resin into small carbon blocks with higher graphitization degree, the pore-forming agent is added to promote conversion of glassy carbon into a porous carbon structure, subsequent RMI is more facilitated, and the preparation method is suitable for industrial production. The problems of high residual carbon rate, poor mechanical property, low graphitization degree, poor uniformity and the like in the preparation process of the carbon-ceramic brake disc are solved.
本发明公开了一种多孔碳/碳坯体结合RMI制备碳陶刹车盘的方法，其方法包括以下步骤：将树脂、有机溶剂和固化剂以及催化剂和/或成孔剂混合，制得树脂基溶液；将碳纤维三维针刺预制体浸渍于树脂基溶液中，然后经固化、裂解制得多孔碳/碳坯体；最后经机械加工后，通过反应熔体渗透法进行陶瓷化，制得。本发明制备过程简单、周期短，成本低，通过在PIP工艺中添加镍源催化剂，催化有机树脂高温裂解后产生的大块玻璃转化为小块石墨化程度更高的碳，通过添加成孔剂促使玻璃碳转化为多孔碳结构，更有利于后续RMI的进行，解决了碳陶刹车盘在制备过程中出现的残碳率高、力学性能差、石墨化程度低、均匀性差等问题。
Method for preparing carbon-ceramic brake disc by combining porous carbon/carbon green body with RMI
一种多孔碳/碳坯体结合RMI制备碳陶刹车盘的方法
WANG FUYUAN (author) / ZHENG WEI (author) / SHI SITAO (author) / DONG QIANG (author) / WANG JING (author)
2024-04-26
Patent
Electronic Resource
Chinese
| European Patent Office | 2024
Coating carbon-ceramic brake disc processing technology and coating carbon-ceramic brake disc
| European Patent Office | 2024
| European Patent Office | 2024
| European Patent Office | 2024