[1]蒋大勇.前混合磨料水射流切割HTPB推进剂的可行性研究[J].爆破器材,2019,48(01):42-46.[doi:10.3969/j.issn.1001-8352.2019.01.008]
　JIANG Dayong.Feasibility Study on Cutting HTPB Propellants with Pre-mixed Abrasive Water Jet[J].EXPLOSIVE MATERIALS,2019,48(01):42-46.[doi:10.3969/j.issn.1001-8352.2019.01.008]
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前混合磨料水射流切割HTPB推进剂的可行性研究()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
48
期数:
2019年01
页码:
42-46
栏目:
爆炸材料
出版日期:
2019-01-18

文章信息/Info

Title:
Feasibility Study on Cutting HTPB Propellants with Pre-mixed Abrasive Water Jet
文章编号:
5297
作者:
蒋大勇
武警工程大学装备管理与保障学院(陕西西安，710086)
Author(s):
JIANG Dayong
Equipment Engineering College, Engineering University of PAP (Shaanxi xi‘an, 710086)
关键词:
安全工程; 前混合磨料水射流; HTPB推进剂; 可行性试验
Keywords:
safety engineering;  pre-mixed abrasive water jet;  HTPB propellant;  feasibility test
分类号:
TJ410. 89
DOI:
10.3969/j.issn.1001-8352.2019.01.008
文献标志码:
A
摘要:
针对前混合磨料水射流切割HTPB推进剂的过程安全性和效率，开展了理论分析与试验验证。在理论分析的结果上，分别开展了基于固定和移动两种试验模式下的安全性和效率试验。该切割方式由于有效降低了出口压力，在保证切割能力的前提下其冲击压力远远低于推进剂的冲击感度，导致推进剂内部升温不明显，安全性有足够保证。研究结果表明，在90%的置信水平下，切割的安全可靠度不低于99.52%。而磨料粒子的添加极大地提高了射流的切割效率。试验结果表明，当保持出口压力30 MPa以上、磨料质量分数不低于50%时，磨料水射流约为相同条件下纯水射流切割效率的2倍。由此得出可行性结论：由于前混合磨料水射流具有极强的冷态冲蚀磨削作用，在安全性和效率方面均能够满足对三组元HTPB推进剂的切割作业。
Abstract:
Process safety and efficiency of cutting test of HTPB propellant by pre-mixed abrasive water jet was studied. Based on theoretical analysis, safety and cutting efficiency of the cutting process were tested by fixed and moving cutting modes.It shows that, the cutting method effectively reduces the outlet pressure, and the impact pressure is far lower than the impact sensitivity under the premise of ensuring the cutting ability. The internal temperature rise is insignificant, so the safety is guaranteed. The research results show that at 90% confidence level, the safety of cutting is no less than 99.52%. Mereover,addition of abrasive particles greatly improves the cutting efficiency of the jet. When the outlet pressure is maintained above 30 MPa and the abrasive concentration is no less than 50%, cutting efficiency of the abrasive water jet is twice of that of the pure water jet under the same conditions. The study shows that the pre-mixed abrasive water jet has a strong cold erosion grinding effect, which can meet the cutting operation of the three component HTPB propellant in terms of safety and efficiency.

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备注/Memo

备注/Memo:
收稿日期：2018-09-19
基金项目：国家自然科学基金（51503224）；武警工程大学“智能反恐防暴装备”创新团队基金
第一作者：蒋大勇(1981－)，男，博士后，副教授，从事含能材料的研究。E-mail:wanghe717@163.com
更新日期/Last Update: 2019-01-17