Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CVI, PIP and RMI combined process for preparing carbon/carbon ceramic composite material brake disc
The invention relates to the technical field of carbon/carbon-ceramic composite material preparation, in particular to a CVI, PIP and RMI combined process for preparing a carbon/carbon-ceramic composite material brake disc. The combined process comprises the steps of preparing a brake disc prefabricated body, carrying out primary high-temperature heat treatment, carrying out primary CVI process densification, carrying out secondary high-temperature heat treatment, carrying out PIP process densification, carrying out secondary CVI process densification, carrying out RMI process and carrying outmachining. The combined process overcomes the disadvantages of CVI and PIP processes. Different advantages of the three processes are brought into full play, pyrolytic carbon obtained through the primary CVI process can well protect carbon fibers, damage to the fibers in the PIP process can be avoided, the PIP process can overcome the defects that the CVI process is long in period, high in cost and the like, pores formed by escape of small molecules in the PIP process can be filled through the secondary CVI process, and the PIP process is suitable for industrial production. Therefore, the carbon/carbon ceramic composite material brake disc with excellent performance and lower cost is obtained.
本发明涉及碳/碳陶复合材料制备技术领域，尤其是一种制备碳/碳陶复合材料刹车盘的CVI、PIP和RMI联合工艺，包含制备刹车盘预制体的步骤、一次高温热处理的步骤、一次CVI工艺致密化的步骤、二次高温热处理的步骤、PIP工艺致密化的步骤、二次CVI工艺致密化的步骤、RMI工艺的步骤和机加工步骤，该联合工艺可以克服CVI、PIP工艺过程的缺点，并充分发挥三种工艺的不同优势，一次CVI工艺得到的热解碳可以很好地保护碳纤维，从而可以避免PIP工艺过程对纤维的损伤，而PIP工艺又可以弥补CVI工艺周期长、成本高等缺点，二次CVI工艺可以填充PIP工艺因小分子逸出而形成的孔隙，从来得到性能优良、成本较低的碳/碳陶复合材料刹车盘。
CVI, PIP and RMI combined process for preparing carbon/carbon ceramic composite material brake disc
The invention relates to the technical field of carbon/carbon-ceramic composite material preparation, in particular to a CVI, PIP and RMI combined process for preparing a carbon/carbon-ceramic composite material brake disc. The combined process comprises the steps of preparing a brake disc prefabricated body, carrying out primary high-temperature heat treatment, carrying out primary CVI process densification, carrying out secondary high-temperature heat treatment, carrying out PIP process densification, carrying out secondary CVI process densification, carrying out RMI process and carrying outmachining. The combined process overcomes the disadvantages of CVI and PIP processes. Different advantages of the three processes are brought into full play, pyrolytic carbon obtained through the primary CVI process can well protect carbon fibers, damage to the fibers in the PIP process can be avoided, the PIP process can overcome the defects that the CVI process is long in period, high in cost and the like, pores formed by escape of small molecules in the PIP process can be filled through the secondary CVI process, and the PIP process is suitable for industrial production. Therefore, the carbon/carbon ceramic composite material brake disc with excellent performance and lower cost is obtained.
本发明涉及碳/碳陶复合材料制备技术领域，尤其是一种制备碳/碳陶复合材料刹车盘的CVI、PIP和RMI联合工艺，包含制备刹车盘预制体的步骤、一次高温热处理的步骤、一次CVI工艺致密化的步骤、二次高温热处理的步骤、PIP工艺致密化的步骤、二次CVI工艺致密化的步骤、RMI工艺的步骤和机加工步骤，该联合工艺可以克服CVI、PIP工艺过程的缺点，并充分发挥三种工艺的不同优势，一次CVI工艺得到的热解碳可以很好地保护碳纤维，从而可以避免PIP工艺过程对纤维的损伤，而PIP工艺又可以弥补CVI工艺周期长、成本高等缺点，二次CVI工艺可以填充PIP工艺因小分子逸出而形成的孔隙，从来得到性能优良、成本较低的碳/碳陶复合材料刹车盘。
CVI, PIP and RMI combined process for preparing carbon/carbon ceramic composite material brake disc
一种制备碳/碳陶复合材料刹车盘的CVI、PIP和RMI联合工艺
LOU JIANJUN (Autor:in)
22.12.2020
Patent
Elektronische Ressource
Chinesisch
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