On July 31, Jinggong Technology (002006.SZ) issued an announcement saying that the company had previously invested with Yonghong Holdings Co., Ltd. UHT Carbon Fiber Co., Ltd. to set up a holding subsidiary, Zhejiang Jinghong Technology Co., Ltd., to engage in carbon fiber microwave graphitization. R & D, production, sales and technical services of technology and key equipment, and jointly developed with Yonghong Co., Ltd. a carbon fiber microwave graphitization production line with an effective width of 1 meter (hereinafter referred to as "microwave graphite line").
Image source: Interpreted from Jinggong Technology Announcement
Jinggong Technology said that with the joint efforts of both parties, various trial productions of the production line have been completed. According to the results of mass test at full load, the modulus and strength of conventional T300 / T400 carbon filaments can be increased by 10% -15% after microwave graphitization of this production line. The final product quality level is above T700 / T800. Various technologies The indicators have met the design requirements and filled domestic gaps.
The announcement shows that the production line mainly uses microwave graphitization process technology, based on domestic ordinary carbon filaments, and uses direct coupling heating of microwave and carbon fibers to achieve graphitization. The entire line has ultra-high heating speed, low system requirements, remodeling carbon fiber structure, Improving carbon fiber performance and other characteristics can provide users with differentiated and customized carbon fiber products (such as: special grades of different grades such as medium-strength high-mode, high-strength medium-mode, high-strength high-mode). The products can be widely used in aerospace, construction / Wind power, pressure vessels, automobiles, fuel cells, etc. demand for high-performance carbon fiber.
Jinggong Technology said that the successful development of this production line is a major breakthrough in the application of microwave graphitization technology in the carbon fiber equipment industry. It will further accelerate the industrialization and localization of domestic carbon fiber equipment and lay the foundation for low-cost and high-performance carbon fiber production. solid foundation. In the later period, the company will actively promote the application of microwave graphitization technology in conventional 1,000-ton carbon fiber production lines, that is, replace high-temperature carbonization furnaces with microwave graphitization furnaces to further improve the quality of carbon fibers and reduce production energy consumption in order to achieve the low cost of domestic high-performance carbon fibers. Development goals of production.