双向聚能预裂爆破切割器的研制与应用

为解决普通线性聚能切割器所用炸药等问题不能满足工程中预裂和光面爆破的要求，研究了一种双向聚能预裂爆破切割器，采用廉价的低爆速工业炸药为主装炸药，以两条高爆速炸药条带动主装炸药爆轰，使主装炸药产生聚能爆轰波，利用聚能爆轰波和聚能装药的双重聚能效果产生强烈的聚能气体或金属射流。依据这种设计思想制造出以工业炸药为主体的双向聚能预裂爆破切割器，可用于预裂、光面爆破与岩石切割等。现场试验表明，双向聚能预裂爆破切割器使用方便，爆破效果显著。

The Development of Two-directional Energy-focusing Cutter and its Application for Fore-splitting Blasting

The ordinary linear energy focusing cutters, which contain dynamite as detonator, can not meet the requirements for fore-splitting and smoothing blasting in demolishes engineering. So a tow-directional energyfocusing cutter, in which an industry dynamite with low-cost and low detonation velocity has been adopted to form main detonator, and two high explosive strips are adopted to form supporting detonator to boost up main detonator to produce strong focusing gas and metal shoot, has been designed and fabricated. This two-directional cutter has been actually used in demolish engineering for fore-splitting and smoothing blasting. The results have indicated that this new type of cutter has high performance and is convenienl for using in demolishes engineering.