CHINESE JOURNAL OF ENERGETIC MATERIALS
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304不锈钢/Q235钢的多面约束装药爆炸焊接
作者:
作者单位:

(1. 中国科学技术大学 中国科学院材料力学行为和设计重点实验室, 安徽 合肥 230026; 2. 中国科学技术大学 火灾科学国家重点实验室, 安徽 合肥 230026; 3. 安徽理工大学化学工程学院, 安徽 淮南 232001)

作者简介:

杨明(1991-),男,博士在读生,主要从事爆炸与冲击,工程防护等方面研究。e-mail: ym1991@mail.ustc.edu.cn 通信联系人: 马宏昊(1980-),男,副教授,主要从事爆炸与冲击,冲击防护等研究。e-mail: hhma@ustc.edu.cn

通讯作者:

马宏昊(1980-),男,副教授,主要从事爆炸与冲击,冲击防护等研究。e-mail: hhma@ustc.edu.cn

基金项目:

国家自然科学基金资助(51674229); 国家自然科学基金资助(51374189); 中国科学技术大学重要方向项目培育基金(WK2480000002)


Explosive Welding of 304 Stainless Steel to Q235 Steel with Multidimensional Constraint Charge
Author:
Affiliation:

(1.CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230027, China; 2. State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China; 3. College of Chemical Eegineering, Anhui University of Science and Techology, Huainan 232001, China)

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    摘要:

    为了提高爆炸焊接中炸药的能量利用率, 使用了蜂窝铝结构乳化炸药和在蜂窝铝结构乳化炸药上端布置覆盖板的多面约束装药方式。蜂窝结构及覆盖板的多面约束减弱了空气中稀疏波对炸药爆轰的影响, 降低了炸药爆轰的临界直径, 提高了炸药对复板的做功能力。以304不锈钢板和Q235钢板分别作为复板和基板, 进行了多面约束装药和普通乳化炸药裸露装药的对比爆炸焊接试验, 并采用格尼模型对爆炸焊接窗口和覆盖板对复板碰撞速度的影响进行了理论分析。结果表明, 与传统爆炸复合技术相比, 结合质量明显提高, 并且炸药使用量减小了50%, 炸药能量利用率显著提高。而复板碰撞速度随着覆盖板质量的增加而增加, 但增加率降低。此外, 得到了爆炸焊接窗口并对焊接质量进行了预测, 实验和预测结果吻合良好。

    Abstract:

    To improve the energy utilization ratio of explosives in explosive welding, the honeycomb aluminum structure emulsion explosive and the multidimensional constraint charge way of cover plate arranged on the upper end of honeycomb aluminum structure emulsion explosive were used. The multidimensional constraint of honeycomb structure and cover plate weakens the effect of rarefaction wave in air on the detonation of explosive, reduces the critical diameter of explosive detonation and improves the work ability of explosive driving flyer plate.Taking 304 stainless steel and Q235 steel as flyer plate and base plate respectively, the contrastive explosive welding tests of multidimensional constraint charge and bare charge of ordinary emulsion explosive were carried out. The explosive welding window and the influence of the cover plate on the impact velocity of the flyer plate were theoretically analyzed by Gurney model. Results show that compared to the existing explosive welding technology, the bonding quality is obviously improved and the consumption of explosives is reduced by 50% and the energy utilization ratio of explosives is significantly improved. The impact velocity of the flyer plate increases with the increase of the quality of the cover plate, but the increase rate decreases. In addition, the explosive welding window is obtained and the welding quality is predicted, and the experimental results are in good agreement with predicted ones.

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杨明,马宏昊,沈兆武,等.304不锈钢/Q235钢的多面约束装药爆炸焊接[J].含能材料, 2018, 26(5):377-382. DOI:10.11943/j. issn.1006-9941.2018.05.001.
YANG Ming, MA Hong-hao, SHEN Zhao-wu, et al. Explosive Welding of 304 Stainless Steel to Q235 Steel with Multidimensional Constraint Charge[J]. Chinese Journal of Energetic Materials, 2018, 26(5):377-382. DOI:10.11943/j. issn.1006-9941.2018.05.001.

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  • 收稿日期: 2017-09-11
  • 最后修改日期: 2017-10-27
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  • 在线发布日期: 2018-05-22
  • 出版日期: 2018-05-25