发明名称 DETONATING CORD AND METHODS OF MAKING AND USING THE SAME
摘要 The velocity of detonation of an explosive such as detonating cord (18, 22) is controlled by the addition of a diluent to the explosive, e.g., to the core of the detonating cord (18, 22). An explosively inert diluent, or a diluent comprised of an explosive of lower brisance than the principal explosive comprising the core of the detonating cord, will serve to reduce the velocity of detonation. Such reduced velocity of detonation has beneficial effects in certain operations, including cleaving rock (10), wherein it is observed to significantly reduce radial cracks (24) and stickers (26) (long radial cracks) in the vicinity of the boreholes (12) in which the low-velocity detonating cord (18, 22) is functioned to cleave the rock (10). The low-velocity detonating cord also facilitates leaving behind a smoother face in cutting trenches and tunnels through rock. The method of manufacture of low-velocity detonating cord includes incorporating a suitable diluent, such as phenolic microballoons, into an explosive core of, e.g., PETN.
申请公布号 US2010037793(A1) 申请公布日期 2010.02.18
申请号 US20090605793 申请日期 2009.10.26
申请人 LEE ROBERT A;WOODALL MARK E;BARKLEY THOMAS L;JOHNSON DENNIS P;KELLY STANLEY R 发明人 LEE ROBERT A.;WOODALL MARK E.;BARKLEY THOMAS L.;JOHNSON DENNIS P.;KELLY STANLEY R.
分类号 C06C5/04;C06B21/00;C06B23/00;F42D1/00 主分类号 C06C5/04
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