Integration of CMC Brake Disks in Automotive Brake Systems
Integration of CMC Brake Disks in Automotive Brake Systems
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DOI：
10.1111/j.1744-7402.2012.02812.x
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发表时间：
2012-07
影响因子：
2.1
通讯作者：
R. Renz;G. Seifert;W. Krenkel
中科院分区：
文献类型：
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作者：
R. Renz;G. Seifert;W. Krenkel
自2001年在Porsche 911 GT2中引入Porsche陶瓷复合制动器（PCCB）以来，陶瓷制动系统不仅在Porsche车辆中，而且在其他原始设备制造商的高性能汽车中提供了卓越的制动力。这些高性能制动系统的陶瓷制动盘基于一种特殊的碳短纤维增强复合材料，在制造绿色坯体和热解后，在高温真空工艺中暴露于液态硅中，温度约为25 ℃。一千七百度。硅和碳原位反应生成碳化硅的结果是制动盘，与灰铸铁制成的传统制动盘相比，制动盘明显更轻。这些制动盘具有更高的强度、更高的热稳定性，因此具有更低的磨损，例如更高的褪色稳定性。本文一方面讨论了这种轻型制动系统的优点，另一方面讨论了根据车辆特定要求将陶瓷复合材料制动盘集成到底盘中的重要方面。此外，还说明了制动盘设计、制造、材料成分、装配和最终部件性能之间的选定关系。
Since the introduction of the Porsche Ceramic Composite Brake (PCCB) in the Porsche 911 GT2 in 2001, ceramic brake systems provide an exceptional braking power not only in Porsche vehicles but also in high performance cars of other Original Equipment Manufacturers. The ceramic brake disks of these high performance brake systems are based on a special carbon short fibre-reinforced composite material, which is, after the manufacturing of the green body and the pyrolysis, exposed to liquid silicon in a high-temperature vacuum process at approx. 1700°C. The results of this in situ reaction of silicon and carbon to silicon carbide are brake disks, which are significantly lighter, compared to conventional brake disks out of gray cast iron. These brake disks offer higher strength, higher thermal stability and thus lower wear such as higher fading stability. This article discusses on the one hand the advantages of this lightweight brake system and on the other hand essential aspects concerning the integration of ceramic composite brake disks, resulting from vehicle-specific requirements, into the chassis. Furthermore, selected relationships between brake disk design, the manufacturing, the material composition, the assembly and the resulting component properties are explained.