| 摘要 |
Deflagration to detonation transition (DDT) detonators are provided which are essentially free from primary explosives. The detonators utilize an intimate mixture of a large particle sized porous, powdered explosive such as PETN, and smaller particle size, high-burn-rate, pressurizing initiator such as a mixture of potassium picrate and potassium perchlorate. The smaller particle sized pressurizing initiator is located within the interstitial spaces of the larger powdered explosive. This mixture is able to reliably initiate an adjacent transition portion, or base charge while reducing the need for heavy confinement. The mixture can also be used directly in surface detonator applications. Improved performance and safety during manufacture of detonators is achieved. |
