近日,中国航天科技集团公司一院一部牵头国内相关单位,采用整体锻造法成功研制出重型火箭贮箱过渡环,突破了超大直径整体锻造关键技术,在国内乃至世界都尚属首例。这标志着重型火箭突破了目前最大瓶颈难题,为后续重型火箭研制的顺利开展奠定了基础。重型火箭采用超大直径箭体结构设计,位于连接贮箱的筒段、前后底与火箭的箱间段之间的过渡环直径很大,是传力的关键部位,受力较集中。以往型号产品 Recently, a subsidiary of China Aerospace Science and Technology Corporation, a domestic unit, took the lead in establishing a transitional ring for heavy rocket storage tanks by using the overall forging method. It broke through the key technologies of ultra-large diameter forging and was the first in China and even in the world. This marks that the heavy rocket has broken the biggest bottleneck problem and laid the foundation for the smooth development of the subsequent heavy rocket development. Heavy rockets with large diameter rocket structure design, located in the tank connected to the tank, the transition zone between the front and rear bottom and the rocket box between the large diameter, is the key force transmission force, the stress is more concentrated. Past model products