Classifications

• • C—CHEMISTRY; METALLURGY
  • C06—EXPLOSIVES; MATCHES
  • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
  • C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
  • C06B21/0091—Elimination of undesirable or temporary components of an intermediate or finished product, e.g. making porous or low density products, purifying, stabilising, drying; Deactivating; Reclaiming
• • C—CHEMISTRY; METALLURGY
  • C06—EXPLOSIVES; MATCHES
  • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
  • C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
• • C—CHEMISTRY; METALLURGY
  • C06—EXPLOSIVES; MATCHES
  • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
  • C06C15/00—Pyrophoric compositions; Flints
• • C—CHEMISTRY; METALLURGY
  • C06—EXPLOSIVES; MATCHES
  • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
  • C06C9/00—Chemical contact igniters; Chemical lighters
• • C—CHEMISTRY; METALLURGY
  • C06—EXPLOSIVES; MATCHES
  • C06D—MEANS FOR GENERATING SMOKE OR MIST; GAS-ATTACK COMPOSITIONS; GENERATION OF GAS FOR BLASTING OR PROPULSION (CHEMICAL PART)
  • C06D3/00—Generation of smoke or mist (chemical part)

Definitions

• the invention relates to a pyrotechnic active composition Ignition and burn accelerators and the use of Propellant powder as an ignition and combustion accelerator.
• Active mass Fog substances, smoke substances, fluorescent substances, signal substances, marking substances etc. are usually summarized under the collective name "active mass”. Such active substances develop their effect after ignition.
• physically and chemically stable active mass systems particularly in the form of highly compressed compacts, are in practice often difficult to ignite. It is particularly difficult when larger areas of the compact are to be ignited in order to achieve a spontaneous active mass effect.
• the prior art assumes that the burn rate of nitrocellulose-containing solid fuels increases monotonically with increasing pressure, while the burning behavior, namely this monotonous increase, by chemical modification of the nitrocellulose component modified, namely reduced or can be interrupted, such as, for example, in DE-OS 27 37 699 is described, but without an increase the burning rate or even the acceleration of ignition, regardless of the pressure.
• nitrocellulose powder on the Field of fireworks well known, in particular to cause a smokeless colored flame, see, for example, JP 2-195198 A, JP 2-195199 A and JP 0-7190696 A, or for blasting smaller and larger pieces, see, for example, WO 93/14365.
• the object of the present invention is an improved and faster ignition of pyrotechnic active mass to enable.
• a pyrotechnic Active mass with ignition and combustion accelerator to be provided.
• a pyrotechnic Active mass especially in the form of a highly compressed Press body, with ignition and burn accelerator in Form added by the recipe of the pyrotechnic active mass and / or on the ignition surface of the pyrotechnic Active mass applied propellant powder dissolved.
• the propellant powder pressed onto the ignition surface and / or with Solvent is dissolved, preferably with Press body is also pressed.
• the propellant powder can be basic and / or nitrocellulose powder according to the invention.
• propellant powder according to the invention is preferably the propellant powder according to the invention to recover from disassembled ammunition Propellant powder.
• the object of the invention is also achieved by Use of propellant powder as an ignition and combustion accelerator for a pyrotechnic active mass by adding from propellant powder to the recipe of pyrotechnic Active mass and / or by applying Propellant powder on the ignition surface of the pyrotechnic Active mass solved.
• the invention proposes that the propellant powder pressed on and / or dissolved with solvent, preferably with the pyrotechnic active mass is pressed to form a compact.
• propellant charge powder preferably comprising a basic and / or nitrocellulose powder used becomes.
• the propellant charge powder from recycled ammunition is recycled.
• the invention is therefore the surprising finding based on the fact that propellant charge powder in pyrotechnic active mass systems can be used on the one hand the Ignitability of pyrotechnic active substance, in particular in the form of compacts, to improve, even spontaneous ignition of the active mass through large areas Ignition can be achieved.
• propellant powder in pyrotechnic active mass systems through the inventive use of propellant powder in pyrotechnic active mass systems an erosion acceleration by forming gas channels in the active mass of the Propellant powder and by additional energy delivery the active mass is reached when burning.
• propellant powder can be used as an ignition aid, respectively to accelerate combustion for different active mass systems be used as long as a chemical Compatibility of the individual components with each other given is.
• a thermite set preferably includes Ferric oxide in a range of 20 to 60 percent by weight; Mg powder in a range of 5 to 45 Weight percent, TPL powder in a range from 10 to 50 % By weight and a binder in a range of 0 up to 10 percent by weight.
• a perchlorate set preferably comprises Perchlorate in a range from 10 to 50 percent by weight, TPL powder in a range from 30 to 70 percent and a binder in a range of 10 to 30 percent by weight.
• Propellant powder in particular monobasic or nitrocellulose powder, leave no burn-off residues because an almost 100% conversion into gases and energy he follows.
• the Active mass to be produced does not interfere with the effect and on the other hand not unduly burden the environment.

Landscapes

• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Metallurgy (AREA)
• Crystallography & Structural Chemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Life Sciences & Earth Sciences (AREA)
• Botany (AREA)
• Pest Control & Pesticides (AREA)
• Plant Pathology (AREA)
• Combustion & Propulsion (AREA)
• Air Bags (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=7865666

Family Applications (1)

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Cited By (8)

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Citations (11)

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• 1998
  • 1998-04-23 DE DE19818337A patent/DE19818337C1/de not_active Expired - Fee Related
• 1999
  • 1999-03-31 EP EP99106628A patent/EP0952130A1/fr not_active Withdrawn
  • 1999-04-22 NO NO19991927A patent/NO312829B1/no not_active IP Right Cessation
  • 1999-04-23 US US09/296,585 patent/US6322648B2/en not_active Expired - Fee Related

Patent Citations (11)

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