【作者】 祝明水； 蒋明； 蒋小华； 只永发； 邢宗仁；

【Author】 Zhu Ming-shui,Jiang Ming,Jiang Xiao-hua,Zhi Yong-fa (Institute of Chemical Materials,CAEP,Mian Yang,China,621900)

【机构】 中国工程物理研究院化工材料研究所；

【摘要】 动力源火工品需要密封高温高压燃气才能有效做功。由于绝缘、通光等需要,动力源火工品通常采用陶瓷金属复合结构。对于燃气压力较高的情况,传统的陶瓷金属复合结构往往不能有效密封。为此,本文提出了一种软硬金属镶套包覆陶瓷周向并在端面采用金属保护垫片的结构。仿真分析和试验结果表明,这种新型的金属陶瓷复合结构可以大大降低相同加载情况下陶瓷材料的受力情况,有效提高相关动力源火工品密封高温高压燃气的能力。更多还原

【Abstract】 Pyrotechnics for impetus must sealing gas product with high temperature and high pressure for effective driving.As for insulation and light transmission,pyrotechnics for impetus usually were composed with complex structure of porcelain and metal.Ordinary structure with porcelain and metal can not resist higher pressure up to hundreds MPa or GPa.So we proposed a structure with porcelain wrapped by crossbedded soft and hard metal and its end intensified by a metal piece.Simulation and test showed that this structure can decrease the stress of porcelain so greatly that the pyrotechnics can seal gas product with much higher pressure.更多还原