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outside cutting charge
expl.
外切割弹
若把金属药型罩和装药的切割角向内,则爆炸时形成一圈向内的均质射流称为外切割结构〈外切割弹〉。如图所示,外切割弹从套管外部进行爆炸切割。即从套管外壁布设外切割弹,切割从外向内把套管切割断。两者原理相同,但结构不同,起爆点位置也不同。内切割弹是中心起爆方式,外切割弹一般采用侧向起爆方式
。需管
;
2一炸药
;
3一药型罩
;
4一外壳
;
5一内侧壳
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