近日,中国运载火箭技术研究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的关键技术,为我国超大直径箭体结构的设计、制造、试验等技术奠定基础,也为我国重型运载火箭结构件轻质化设计提供了技术支撑。以往型号产品的过渡环通常采用把各部段之间焊接起来的分段式锻造,而重型火箭的过渡环直径大,界面形式特殊且复杂,焊接时可能会产 Recently, China National Academy of Launch Vehicle Technology led a domestic relevant unit, using the overall forging method successfully developed a heavy rocket storage tank transition ring, breaking the large diameter forging of the key technologies for the design of China’s large diameter rocket body structure, manufacturing , Test and other technologies to lay the foundation, but also for our heavy-duty carrier rocket structure of lightweight design provides technical support. In the past, the transitional rings of the former models usually adopted the segmented forging which welded all the segments. However, the diameter of the transition ring of the heavy rocket was large, the interface was special and complicated, and welding may be produced