爆速对爆炸焊接铝/不锈钢复合管界面及结合性能的影响

邓伟; 陆明; 田晓洁

doi:10.11883/1001-1455(2015)01-0082-07

爆速对爆炸焊接铝/不锈钢复合管界面及结合性能的影响

doi: 10.11883/1001-1455(2015)01-0082-07

邓伟^{1, 2},
陆明^2, ,,
田晓洁³

1.
中国人民解放军63981部队，湖北武汉 430311
2.
解放军理工大学野战工程学院，江苏南京 210007
3.
中国海洋大学工程学院，山东青岛 266100

基金项目: 国家高技术研究发展计划(863计划)项目(2013AA09A220)

详细信息

作者简介:
邓伟(1985—), 男, 博士研究生

通讯作者:
陆明, luming569@sohu.com

中图分类号: O389; TG456.6
计量
- 文章访问数: 3110
- HTML全文浏览量: 366
- PDF下载量: 363
- 被引次数: 0
出版历程
- 收稿日期: 2013-06-08
- 修回日期: 2013-09-07
- 刊出日期: 2015-01-25

Influence of detonation velocity on interface and combination performances of Al/316L composite tube by explosive welding

Deng Wei^{1, 2},
Lu Ming^{2
, ,},
Tian Xiao-jie³

1.
63981 Unite of People's Liberation Army, Wuhan 430311, Hubei, China
2.
College of Field Engineering, Science & Technology University of People's Liberation Army, Nanjing 210007, Jiangshu, China
3.
College of Engineering, Ocean University of China, Qindao 266100, Shandong, China

摘要

摘要: 通过在粉状乳化炸药中添加不同比例的密度调节剂，配制了爆速范围为1 450~2 550 m/s的低爆速炸药；采用该爆速炸药进行了铝/不锈钢复合管爆炸焊接实验，结合最小碰撞速度理论，对实验结果及其界面微观结构和结合强度进行了测试和分析，确定该复合管爆炸焊接的合适爆速约为1 950~2 150 m/s，其结合质量能够满足后续加工要求；同时发现界面由介于直线与波形之间的波状形态组成，且呈现不太规则的扁平波状结合，经分析，炸药爆速、复合管的爆炸焊接环境和爆炸产物飞散条件对界面结合波形及熔化层厚度有很大影响。
- 爆炸力学 /
- 爆轰速度 /
- 爆炸焊接 /
- 铝/不锈钢复合管 /
- 结合质量
Abstract: To obtain low detonation velocity explosive, commercial attenuant was blended into the emulsion explosive. The detonation velocity of compound explosive changes from 2 550 m/s to 1 450 m/s. Through analyzing the result of mechanical properties test and microstructure test of the Al/316L composite tubes which were fabricated by explosive welding of compound explosives, the appropriate detonation velocity (1 950~2 150 m/s) for the explosive welding of composite tube is obtained, and the combination quality of the composite tubes meet the subsequent processing requirement. The shape of the interface waveform is between line and wave. Interfacial wave also has poor rule of periodic variation. The reasons are that detonation velocity is important to the process, the explosion product does not scatter in the direction of tube diameter and the time that detonation products inside the tube affect to the flyer tube is longer than the flyer plate in the explosive welding process.
- mechanics of explosion /
- detonation velocity /
- explosive welding /
- Al/316L composite tube /
- combination quality

HTML全文

图 1 复合管爆炸焊接装置示意图与实物图

Figure 1. Schematics of explosive welding installation

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图 2 5种爆速下复合管内表面及剖面基本情况

Figure 2. Inner surface and section of the composite tubes in five kinds of detonation velocity

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图 3 复合管3结合界面电镜扫描图像

Figure 3. SEM image of composite tube 3

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图 4 复合管4结合界面电镜扫描图像

Figure 4. SEM image of composite tube 4

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图 5 铝/不锈钢复合管试样压剪性能测试

Figure 5. Composite tube of Al/316L cutting test

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图 6 铝/不锈钢复合管试样压扁性能测试

Figure 6. Composite tube of Al/316L flattening test

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图 7 铝/不锈钢复合管试样弯曲性能测试

Figure 7. Composite tube of Al/316L bending test

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表 1 不同配比的粉状乳化炸药爆速测试结果

Table 1. Experimental results of detonation velocity of emulsion explosive

炸药序号	R_e/mm	ϕ(NaCl)/%	v/(m·s^-1)	v_a/(m·s^-1)
1	11	5	257 4，255 4，254 1	255 0
2	11	10	229 4，233 5，243 0	235 0
3	11	20	219 0，212 3，222 1	215 0
4	11	30	193 0，186 5，195 6	195 0
5	11	40	148 0，144 1，142 0	145 0
6	11	46	炸药未起爆

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表 2 铝复管和不锈钢基管的基本力学性能及尺寸

Table 2. Basic performance parameters of the Al flyer tube and stainless steel base tube

材料	ρ/(g·cm^-3)	σ_s/MPa	σ_b/MPa	μ	H_v/MPa	r/mm	l/mm	s/mm
不锈钢316L	7.98	170	480	0.30	1 862.0	15	400	2
纯铝1060	2.71	100	143	0.33	707.5	11	400	1

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表 3 与表 1对应的不同序号炸药计算得到的铝复管碰撞速度

Table 3. Collision speed of Al tube by calculated from different explosives in table 1

炸药序号	R	v_d/(m·s^-1)	v_p/(m·s^-1)
1	0.745 0	2 550	470
2	0.707 8	2 350	422
3	0.670 0	2 150	380
4	0.630 0	1 950	321
5	0.596 0	1 450	228

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