摘要
银导爆索在拉制过程中会产生冷作硬化而易断裂,需经过高温处理软化银索,但其内装填聚奥炸药在受热后易出现晶型转变,影响产品性能。为避免银导爆索热处理拉制过程中出现断索及内装炸药转晶现象,借助烘箱模拟导爆索拉制过程的退火及回火热效应,应用红外光谱分析技术,分析原始炸药及导爆索内解剖炸药晶型结构,进行导爆索热处理工艺参数制定。结果表明,某银导爆索在130℃下,累计保温7 h以内,其内装聚奥炸药未发生晶型转变,拉索安全且不易断裂。
Silver detonating cord could produce cold work hardening and is easy to break during drawing process. It requires to soften the silver line by high temperature treatment,but filling of poly-HMX in the silver detonating will lead to the phase transformation of crystalline after heating,thus affecting the product performance. These phenomena mentioned above should be avoided. The thermal effect of annealing and tempering during the drawing process of detonating fuse was simulated by means of the heat preservation in oven. IR technique was used to analyze the crystal structure of the original and anatomic detonating explosives. Heat treatment parameters of the silver detonating cord were also determined. The results show that,at 130 ℃ and the cumulative insulation 7 h,no crystal transformation of poly-HMX filled in a silver detonating cord occurred,and the cable is safe and difficult to break.
出处
《爆破器材》
CAS
2015年第2期40-43,47,共5页
Explosive Materials
关键词
银导爆索
炸药
热处理
红外光谱
silver detonating cord
explosive
heat treatment
infrared spectrum
