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推进剂安定性
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  “推进剂安定性”译为未确定词的双语例句
     Especially the difference is more obvious in the experiments of the high temperature. But the result is same as the "171" propellant around 100 centigrade. The article test the chemical stability through the different method and estimate the safety store age is more than 15 years of the new modified double-base propellant.
     新型高燃速改性双基推进剂由于配方中含有较多的硝化甘油和新型的燃烧催化剂,其化学安定性比一般双基推进剂安定性差一些,特别是试验温度较高时,这种差别更为明显,但是在100℃左右的温度下,其试验结果与171火药相似,本文通过采用不同的方法对这种推进剂的安定性进行了测试,预估这种新型的改性双基推进剂的安全贮存寿命可达15年以上。
     Way of Improving the Stability of High Burning Rate Propellant
     改善高燃速推进剂安定性的途径
短句来源
     The storage in closed environment is an effective way for improving the stability and extending the storage life of the propellant containing ReS.
     密闭储存是改善含ReS推进剂安定性和延长该推进剂储存寿命的有效途径。
短句来源
  相似匹配句对
     Way of Improving the Stability of High Burning Rate Propellant
     改善高燃速推进剂安定性的途径
短句来源
     Stabilities of Lubricating Grease
     润滑脂的安定性
短句来源
     The Chemical Stability and Store Age of the New Modified Double-base Propellant
     新型改性双基推进剂化学安定性与贮存寿命
     Temperature Control of the Low Temperature Propellant
     低温推进剂的温度控制
短句来源
     Liner for NEPE Propellant
     NEPE推进剂包覆层
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  propellant stability
Thermal Analysis in Propellant Stability Examinations
      


The thermal stability of high burning rate propellant is studied by DSC, methyl violet test and weight loss test. With the help of thermal accelerated aging test, the curves of change of the effective stabilizer with time during the thermal decomposition of propellants at 65 ℃,75 ℃,85 ℃and 95 ℃ are obtained. In the calculation of life, the time (τ) needed for consuming the effection. stabilizer of 50% at various temperatures (T) is defined as the end point of safe storage life of the propellant. The values of...

The thermal stability of high burning rate propellant is studied by DSC, methyl violet test and weight loss test. With the help of thermal accelerated aging test, the curves of change of the effective stabilizer with time during the thermal decomposition of propellants at 65 ℃,75 ℃,85 ℃and 95 ℃ are obtained. In the calculation of life, the time (τ) needed for consuming the effection. stabilizer of 50% at various temperatures (T) is defined as the end point of safe storage life of the propellant. The values of τ at various temperatures are fitted to Bethelot's equation, T=a+blogτ, by the linear least-squares method. With the help of the obtained equations, the safe storage life at 30 ℃ is predicted for four high burning rate propellants. The results show that the relative thermal stability of the propellant containing 1,3-dimethyl-1,3-diphenyl urea (C2) and CdO (A), the propellant containing resorcin (ReS), C2 and CdO (B) and the propellant containing C2 and Res (C) decreases in the order A>B>C. Replacing Res partly or wholly with CdO as a stabilizer increases the thermal stability and extends the storage life of propellants. The storage in closed environment is an effective way for improving the stability and extending the storage life of the propellant containing ReS.

DSC、甲基紫试验和失重试验研究了高燃速推进剂的热安定性。借助热加速老化试验,得到了65℃、75℃、85℃和95℃下推进剂热分解期间有效安定剂随时间的变化曲线。在寿命计算中,视消耗50%有效安定剂所需时间(τ)为推进剂安全储存寿命的终点。对不同温度(T)下的τ值,用线性最小二乘法按Bethelot方程T=a+blogτ进行了拟合。借助所得方程,预估了30℃时4种高燃速推进剂的安全储存寿命。结果表明:含1,3 二甲基 1,3 二苯脲(C2)和CdO的推进剂(A)、含间苯二酚(ReS)、C2和CdO的推进剂(B)和含C2和ReS的推进剂(C)的相对热安定性的降低次序为:A>B>C。用安定剂CdO部分或全部取代ReS可使高燃速推进剂的热安定性提高,储存寿命延长。密闭储存是改善含ReS推进剂安定性和延长该推进剂储存寿命的有效途径。

>=There is more nitroglycerine and the new burning catalyst in the new modified double-base propellant. The chemical stability is worse than the double base propellant. Especially the difference is more obvious in the experiments of the high temperature. But the result is same as the "171" propellant around 100 centigrade. The article test the chemical stability through the different method and estimate the safety store age is more than 15 years of the new modified double-base propellant.

新型高燃速改性双基推进剂由于配方中含有较多的硝化甘油和新型的燃烧催化剂,其化学安定性比一般双基推进剂安定性差一些,特别是试验温度较高时,这种差别更为明显,但是在100℃左右的温度下,其试验结果与171火药相似,本文通过采用不同的方法对这种推进剂的安定性进行了测试,预估这种新型的改性双基推进剂的安全贮存寿命可达15年以上。

 
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