| 温度对PBX炸药压制的作用 |
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| 引用本文： | 庞海燕,李明,温茂萍,蓝林刚.温度对PBX炸药压制的作用[J].兵器材料科学与工程,2011,34(1):21-23. |
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| 作者姓名： | 庞海燕 李明 温茂萍 蓝林刚 |
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| 作者单位： | 中国工程物理研究院,化工材料研究所,四川,绵阳,621900;中国工程物理研究院,化工材料研究所,四川,绵阳,621900;中国工程物理研究院,化工材料研究所,四川,绵阳,621900;中国工程物理研究院,化工材料研究所,四川,绵阳,621900 |
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| 基金项目： | 国家自然科学基金(10832003) |
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| 摘 要： | 以模压法压制的样品的密度和压缩强度随造型粉装药量的增加而降低,证明压制过程中样品内部存在应力梯度;常温压制的药柱的密度和压缩强度明显低于高温压制样品的密度和压缩强度。其原因在于高温使造型粉的粘结体系软化,降低造型粉之间的摩擦,从而降低应力梯度,尤其是当温度超过粘结体系的熔融温度后粘结体熔化、冷却形成一个整体,因此升高压制温度可以明显地提高炸药的压制质量。
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| 关 键 词： | PBX 应力梯度 裂纹愈合 |
Effects of compaction temperature on pressing of PBX |
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| PANG Haiyan,LI Ming,WEN Maoping,LAN Lingang.Effects of compaction temperature on pressing of PBX[J].Ordnance Material Science and Engineering,2011,34(1):21-23. |
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| Authors: | PANG Haiyan LI Ming WEN Maoping LAN Lingang |
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| Affiliation: | PANG Haiyan,LI Ming,WEN Maoping,LAN Lingang(Institute of Chemical Materials,China Academy of Engineering Physics,Mianyang 621900,China) |
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| Abstract: | Densities and compressive strength of plastic-bonded explosive(PBX) samples pressed by compression molding method reduce with the increasing of the packing amount of PBX molding powders,which indicates the stress gradient is in existence in sample during pressing.The reason that densities and compressive strength of PBX samples pressed at ambient temperature is lower obviously than that pressed at high temperature is that high temperatures soften bonding system of the molding powder,and decrease friction be... |
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| Keywords: | PBX stress gradient crack healing |
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