新一代运载火箭增压输送系统中主阀芯制造工艺

摘要

介绍了新一代运载火箭增压输送系统中主阀芯制造工艺，这种制造工艺改进了传统的生产工艺，主阀芯通过了芯一级低温保险阀常温、液氮温区性能试验和常温振动试验，解决了主阀芯密封问题和阀门导向杆可能的运动卡滞问题，成功应用到新一代运载火箭增压输送系统保险阀中。%A novel fabrication process of the main valve spool in the pressurization feeding system for new generation launch vehicle has been reported in this paper. The newly-developed process improved the traditional technique, and passed the performance tests of the cryogenic safety valve at room temperature and liquid nitrogen temperature respectively, and the vibration test at room temperature. Both the sealing problem and the possible clamping stagnation of oriented-pole of the main valve spool have been solved. This developed technique has been successfully applied in the valves for new generation launch vehicle.