Method for reducing uncombined explosive welding detonator zone through energy polymerizing cover detonation

Abstract

The invention discloses a method for reducing an uncombined explosive welding detonator zone through energy polymerizing cover detonation. The method adopts the shaped charge theory of an armor-piercing bullet, detonates explosives with an energy polymerizing cover, improves detonation energy of the explosive, and reduces unstable detonation zone of the explosive, so as to achieve the purpose of reducing the defects in the detonator zone. The energy polymerizing cover is a conical body; the diameter at the top of the conical body equals to the outer diameter of a detonator; the diameter at the bottom of the conical body changes with the thickness of a doubling plate; and generally, the height of the conical body ranges from 25 to 50 mm, and the thickness of the conical body ranges from 2 to 5 mm. Preferentially, the energy polymerizing cover is made of wood or plastic; and when low detonation velocity explosives are detonated to weld the doubling plate which is made of precious metal and large in size and thickness, the energy polymerizing cover is filled with high velocity detonation explosives, so that the energy polymerizing effect is much better, the distance of the unstable detonation zone of the explosives is much shorter, and the defects of the detonator zone are much smaller. Compared with the traditional explosive welding detonation method, the method provided by the invention has the advantage that during the detonation of the explosives, the defects of the detonator zone can be reduced by more than 90% to the most extent.

Description

technical field [0001] The invention relates to a method for detonating an energy-gathering hood to reduce the unbonding of an explosive welding detonator area, and belongs to the technical field of explosive welding. Background technique [0002] At present, in the explosive welding process, the 8# electric detonator is mainly used to detonate the ammonium nitrate industrial explosives. Explosives go through an unstable detonation process from detonation to stable detonation at an inherent speed. The length of the unstable detonation zone is not only related to the properties of explosives, but also has a great relationship with the initiation energy. Therefore, in the production of explosive welding, there are often so-called defects in the detonator area, that is, the non-composite area of ​​the explosively welded clad plate. In the explosive welding production process, especially in the explosive welding of super-long, super-wide and super-thick composite plates, due t...

AI Technical Summary

Problems solved by technology

In order to reduce the area of ​​the detonator area, people have adopted various methods, the most commonly used method is to add a small amount of high-detonation velocity explosives under the detonator to increase the detonation energy, but this method has no obvious effect on reducing the detonator area; One method is to extend the detonator area to the outside of the board surface, which will inevitably increase the blanking size of the composite board, and remove the defects in the detonator area after explosive welding and compounding, resulting in unnecessary waste of materials

The existence of the detonator area has seriously affected the overall quality and utilization rate of the composite board. For two compatible metals, repair welding can also be used to repair it, but for incompatible composite materials such as titanium / steel , zirconium / steel composite materials, etc., it means that the entire composite board is scrapped

The published patent "Repair Method for Defects of Titanium-Steel Composite Materials ZL200610040174.6" provides a new technology for the repair of explosively welded titanium / steel composite plates. Although this method can completely repair the defects in the detonator area, the interface after repair Compared with the explosive welding interface, its strength is obviously reduced, and the repair method is complicated, time-consuming and labor-intensive

Images