Application of Colloid Water Covering on Explosive Welding of AA1060 Foil to Q235 Steel Plate,Propellants, Explosives, Pyrotechnics

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Application of Colloid Water Covering on Explosive Welding of AA1060 Foil to Q235 Steel Plate
Propellants, Explosives, Pyrotechnics ( IF 1.7 ) Pub Date : 2019-12-23 , DOI: 10.1002/prep.201900157
Yang Ming ₁ , Ma Hong‐hao _{1,

2} , Shen Zhao‐Wu ₁ , Xu Junfeng ₁

Affiliation

To make industrial explosives suitable for explosive welding of metal foils, colloid water was used as a covering of explosives. The effect of the colloidal water thickness on the critical thickness of the explosives was investigated, and then AA1060 foil and Q235 steel plate were bonded using this method. Additionally, the bonding properties of the clad plate were studied through mechanical performance tests and microstructure observations. The results show that the colloid water can significantly reduce the consumption of explosives and avoid excess energy in foil weld, due to the low critical thickness of explosives in this condition. The AA1060/Q235 composite sheet shows an excellent bonding quality without macroscopic defects except for the boundary area, and no separation, tearing or fracture was observed under bending load. The microstructure results show a wave‐type metallurgical bonding between the two materials, with some melting zones in the crest. In addition, a hardening phenomenon near the AA1060/Q235 interface was revealed by microhardness and fractography studies on the tensile specimen.

中文翻译：

胶体注水在Q235钢板AA1060箔爆炸焊接中的应用

为了使工业炸药适合于金属箔的爆炸焊接，胶体水被用作炸药的覆盖层。研究了胶体水厚度对炸药临界厚度的影响，然后使用该方法将AA1060箔和Q235钢板粘合在一起。此外，还通过机械性能测试和微观结构观察研究了复合板的粘结性能。结果表明，由于在这种条件下炸药的临界厚度低，胶体水可以显着减少炸药的消耗并避免箔焊中的过多能量。AA1060 / Q235复合片材显示出优异的粘合质量，除了边界区域外没有宏观缺陷，在弯曲载荷下也未观察到分离，撕裂或断裂。显微组织结果显示出两种材料之间的波型冶金结合，在波峰处有一些熔化区。另外，通过对拉伸试样的显微硬度和分形学研究揭示了AA1060 / Q235界面附近的硬化现象。

更新日期：2020-03-22

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