ATE482917T1 - PLASTIC EXPLOSIVE COMPOSITION, IN PARTICULAR FOR A SMALL CALIBRE INITIAL IGNITION FOR TUNNELING, AND A METHOD FOR THE PRODUCTION THEREOF AND A BOOSTER FOR USE THEREOF - Google Patents

PLASTIC EXPLOSIVE COMPOSITION, IN PARTICULAR FOR A SMALL CALIBRE INITIAL IGNITION FOR TUNNELING, AND A METHOD FOR THE PRODUCTION THEREOF AND A BOOSTER FOR USE THEREOF

Info

Publication number
ATE482917T1
ATE482917T1 AT02740286T AT02740286T ATE482917T1 AT E482917 T1 ATE482917 T1 AT E482917T1 AT 02740286 T AT02740286 T AT 02740286T AT 02740286 T AT02740286 T AT 02740286T AT E482917 T1 ATE482917 T1 AT E482917T1
Authority
AT
Austria
Prior art keywords
pec
ignitor
stoppers
booster
sleeve
Prior art date
Application number
AT02740286T
Other languages
German (de)
Inventor
Thomas Mann
Christian Heinze
Original Assignee
Maxam Deutschland Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maxam Deutschland Gmbh filed Critical Maxam Deutschland Gmbh
Application granted granted Critical
Publication of ATE482917T1 publication Critical patent/ATE482917T1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/26—Arrangements for mounting initiators; Accessories therefor, e.g. tools
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B25/00—Compositions containing a nitrated organic compound
    • C06B25/32—Compositions containing a nitrated organic compound the compound being nitrated pentaerythritol
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B25/00—Compositions containing a nitrated organic compound
    • C06B25/34—Compositions containing a nitrated organic compound the compound being a nitrated acyclic, alicyclic or heterocyclic amine
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C7/00—Non-electric detonators; Blasting caps; Primers

Abstract

In using a plastic explosive composition (PEC), the ignitor, in spite of initially closed stoppers (12), can be inserted very easily and precisely in the PEC. When the PEC is combined with a booster, safe and central placing of the ignitor in the sleeve (11) is ensured, and the PEC, because of the stoppers on both sides, can be safely and densely packed. The PEC contains (wt.%): pentaerythritol tetranitrate and/or hexogen and/or octogen as high explosive material (50-80), dibutyl phthalate and/or diamyl phthalate as plastifying agent (15-30), nitrocellulose (0.5-3), inorganic nitrates, e.g. sodium (Na) and/or potassium (K) nitrate (up to 10), and small amounts of impurities, colorants and inert materials. Independent claims are also included for the following: (1) a process for preparation of the PEC having the above properties involving making a mixture containing (wt.%) dibutyl phthalate and/or diamyl phthalate as plasticizer (15-30) and nitrocellulose (0.5-3) to form a gelatin, to which are added pentaerythritol tetranitrate (nitropenta) and/or hexogen and/or octogen as high explosive materials (50-80), inorganic nitrates (up to 10) and small amounts of colorant and inert materials, until a homogeneous composition is obtained; (2) a booster for the explosive material, especially for the borehole loading tube, a small caliber priming, and a boosting charge for tunnel construction, with a tubular sleeve (11) with plastics stoppers (12) at both end sections, of which at least one can be penetrated by the ignitor for the explosive in the sleeve (11), where the sleeve stoppers (12) are strongly and tightly closed, and at least one stopper has a central opening (19) for an ignitor, so that the ignitor is enclosed centrally, and can be arrested.
AT02740286T 2002-01-31 2002-04-22 PLASTIC EXPLOSIVE COMPOSITION, IN PARTICULAR FOR A SMALL CALIBRE INITIAL IGNITION FOR TUNNELING, AND A METHOD FOR THE PRODUCTION THEREOF AND A BOOSTER FOR USE THEREOF ATE482917T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10204279 2002-01-31
PCT/DE2002/001490 WO2003064352A1 (en) 2002-01-31 2002-04-22 Plastic explosive composition, especially for a small-calibre priming for tunnel construction, a method for the production thereof, and a booster for using the same

Publications (1)

Publication Number Publication Date
ATE482917T1 true ATE482917T1 (en) 2010-10-15

Family

ID=27634767

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02740286T ATE482917T1 (en) 2002-01-31 2002-04-22 PLASTIC EXPLOSIVE COMPOSITION, IN PARTICULAR FOR A SMALL CALIBRE INITIAL IGNITION FOR TUNNELING, AND A METHOD FOR THE PRODUCTION THEREOF AND A BOOSTER FOR USE THEREOF

Country Status (7)

Country Link
EP (1) EP1478608B1 (en)
AT (1) ATE482917T1 (en)
DE (2) DE10218222A1 (en)
ES (1) ES2353738T3 (en)
HR (1) HRP20040650A2 (en)
NO (1) NO333107B1 (en)
WO (1) WO2003064352A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE536821C2 (en) * 2011-12-23 2014-09-23 Power Tools Spräckutrustning I Herrljunga Ab A stone cracking unit, an apertured stone crack cartridge and an unapproved stone crack cartridge, and an ignition capsule included in the assembly
CN108844508B (en) * 2018-07-04 2020-04-14 中北大学 Explosive critical diameter testing device and testing method thereof
CN112525024A (en) * 2021-01-07 2021-03-19 中铁十八局集团有限公司 Method for controlling over-underexcavation of peripheral holes in tunnel drilling and blasting construction
AT525440B1 (en) * 2022-06-23 2023-04-15 Aeeg Applied Explosives & Energetics Gmbh Plastic explosive composition

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR947052A (en) * 1947-05-14 1949-06-22 Improvements to plastic explosives
FR1424216A (en) * 1964-02-27 1966-01-07 Bombrini Parodi Delfino S P A Process for the production of high power plastic explosives
US3311513A (en) * 1965-03-05 1967-03-28 Du Pont Nitramine, nitrocellulose explosive with ester plasticizer
US3317361A (en) * 1965-10-27 1967-05-02 John D Hopper Flexible plasticized explosive of cyclonitramine and nitrocellose and process therefor
US3400025A (en) * 1966-04-19 1968-09-03 Army Usa Flexible explosive comprising rdx, hmx or petn and mixed plasticizer
GB9712748D0 (en) * 1997-06-17 1997-08-20 Dimitrov Stokyo I Plastic explosive

Also Published As

Publication number Publication date
NO333107B1 (en) 2013-03-04
NO20042674L (en) 2004-06-25
EP1478608B1 (en) 2010-09-29
EP1478608A1 (en) 2004-11-24
DE10218222A1 (en) 2003-08-28
HRP20040650A2 (en) 2005-12-31
DE50214691D1 (en) 2010-11-11
WO2003064352A1 (en) 2003-08-07
ES2353738T3 (en) 2011-03-04

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