采用磁等离子发动机实现超高温石墨化工艺  

Ultra-high Temperature Graphitization Process by the Magnetic Plasma Engine

作　　者：吴庆越 

机构地区：[1]北京轩宇空间科技有限公司,北京100190

出　　处：《自动化博览》2022年第9期54-61,共8页Automation Panorama1

摘　　要：针对市场对高性能碳基新材料的迫切需求,尤其是第四代半导体基材、锂离子电池负极材料、复合材料等对超高密度、超高纯度炭材料的需求,开展中间相炭微球超高温石墨化处理工艺及装备研究。基于深空探测领域应用的磁等离子体动力发动机技术,开展了基于强磁高密度超高温等离子体电磁场耦合加速及调控、大功率分时分级电源启动控制、真空超高温高效率中间相炭微球石墨化工艺制造、高效能稳定连续运作标准化研究。应用磁等离子体动力发动机进行MCMB超高温石墨化处理试验表明:应用超高温等离子体技术进行石墨化处理,可获得石墨化程度较高、微观结构特性优异的碳素材料。基于深空探测领域应用的磁等离子体动力发动机技术,真空下可迅速达到3000℃的高温,十分钟内便可实现毫米级中间相炭微球的高质量石墨化,此种应用在国内尚属首例。实现了中间相炭微球石墨化过程所需的超高温度、高效率和工业智能化控制,制备出具备超高密度、超高纯度的材料,对提升我国新材料工艺制造装备的整体技术水平有重大实际意义。In response to the urgent market demand for high-performance carbon-based new materials,especially the demand for semiconductor base materials,lithium-ion battery anode materials,composite materials,and other ultra-high density,ultra-high purity carbon materials,we research the ultra-high temperature graphitization process and equipment of mesophase carbon microspheres(MCMB).Based on the magnetic plasma power engine technology applied in the field of deep space exploration,research on the standardization of strong magnetic high-density ultra-high temperature plasma electromagnetic field coupling acceleration and regulation,high-power time-sharing graded power supply start-up control,vacuum ultra-high temperature high-efficiency MCMB graphitization process manufacturing and high-efficiency stable continuous operation are carried out.Experiments on MCMB ultra-high-temperature graphitization processing show that the application of ultra-high-temperature plasma technology for graphitization processing obtains carbon materials with a highgraphitization degree and excellent microstructure characteristics.Based on the magnetic plasma power engine technology,the high-quality graphitization of millimeter MCMB can be achieved in ten minutes under a vacuum at 3000°C,which is the first application in China.The above experiments achieve ultra-high temperature,high efficiency,and industrial intelligence control in the graphitization process of MCMB,and produce ultra-high density and ultra-high purity materials,which is of great practical significance to enhance the overall technical level of new material process manufacturing equipment.

关 键 词：碳基材料 中间相炭微球 超高温 磁等离子体动力发动机 石墨化 

分 类 号：V439.2[航空宇航科学与技术—航空宇航推进理论与工程]