| 摘要 |
1,231,536. Assembling explosive charges. IMPERIAL CHEMICAL INDUSTRIES Ltd. 23 Feb., 1970 [17 March, 1969 (2)], Nos. 13860/69 and 13861/69. Heading F3A. [Also in Division H4] A method of assembling one or more explosive charges on an initiating line of detonating cord, comprises sticking the charges 17 on the detonating cord 11 by means of a layer of adhesive material 21 applied between the charge and the cord. The adhesive material is provided in the form of a tape coated on both sides with adhesive composition and protected by a strippable covering, or in the form of a transfer tape with a releasable backing. The explosive charges are contained in gussetted containers or " layflat " tubing 18 fabricated from paper, metal foil, polyethylene, polypropylene or P.V.C. The cords 11 comprise a core of PETN encased in textile wrappings and an outer sheath of thermoplastics material. The explosive charges comprise gelatinous or plastic explosive based on gelled nitroglycerine, or powdered explosive comprising an oxygen-supplying salt sensitized by nitroglycerine, TNT, PETN or CMX. |
