Classifications

• • C—CHEMISTRY; METALLURGY
  • C06—EXPLOSIVES; MATCHES
  • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
  • C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
• • C—CHEMISTRY; METALLURGY
  • C06—EXPLOSIVES; MATCHES
  • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
  • C06C7/00—Non-electric detonators; Blasting caps; Primers

Definitions

• a primer is a part (or a charge) in 30 which ignition is thermally or electrothermally initiated, and by which an explosion is started that ultimately fires another charge by detonation.
• the mercury fulminate serves as a highly sensitive percussive combustion-initiator; the barium nitrate as an oxidizer, non-corrosive toward a gun barrel; and the antimony sulphide as a combustible or fuel,though less sensitive than zirconium.
• proportions are permissible, however: e. g., an addition of as little as 2% zirconium powder will give greater ignitibility to some primer mixtures; and it may, on the other hand, be used in much powder ignites larger proportions than more.
• zirconium in primers or blasting caps is its agains such as 25% or it does not deteriorate in contact with moisture.
• Zirconium also resists the attack of many of the oxidizers and alkali compounds that are used in and percussion mixtures. For all of these reasons, it increases the life, efl'iciency, and reliability of priming and detonating compositions in which it is used.
• zirconium forms a heavy ash with some of the usual ingredients, such as barium nitrate, and
• zirconium metal powder as at present produced appears to contain a substantial proportion of impurityprobably a suboxide or hydride of zirconiumwhose exact character and effect on the properties of the powder have never been definitely determined. It is possible, of course, that various advantages of zirconium .for my purposes (as hereinbefore set forth) are either diminished or enhanced by such "suboxide” or other impurity or dependent on its presence. Accordingly, the addition or substitution of such suboxide? to or for zirconium powder is within the scope-of my invention in its broader aspects, as well as the use of zirconium without the presence of the suboxide.
• a percussively fired igniter charge for an explosive charge comprising zirconium.
• a percussively exploded composition comprising zirconium.
• An ammunition priming mixture containing zirconium, an oxidizer, and a combustion initiator.
• An ammunition priming mixture containing zirconium, a non-corrosive oxidizer, and a suitable combustion initiator.
• An ammunition priming mixture containing zirconium, a second fuel ingredient, a non-corrosive oxidizing ingredient, and a combustion initiator.
• An ammunition priming mixture containing zirconium, antimony sulphide, a suitable oxidizer, and a suitable combustion initiator.
• An ammunition priming mixture containing metallic zirconium and a non-corrosive oxidizer.
• a non-corrosive priming mixture comprising a nitrate adapted to serve as an oxidizing agent without corrosive tendencies toward a gun barrel, and zirconium as a fuel.
• An ammunition priming mixture containing a combustion initiator, an oxidizer, a fuel, and a small quantity of zirconium.
• a non-corrosive priming mixture comprising a combustion initiator, a nitrate adapted to serve as an oxidizing agent without corrosive tendencies toward a gun barrel, and metallic zirconium as a fuel.

Landscapes

• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Metallurgy (AREA)
• Paints Or Removers (AREA)
• Air Bags (AREA)
• Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
• Dental Preparations (AREA)

Priority Applications (5)

Applications Claiming Priority (1)

Publications (1)

Family

ID=24255625

Family Applications (1)

Country Status (5)

Cited By (4)

Families Citing this family (6)

• 0
  • BE BE390851D patent/BE390851A/xx unknown
  • FR FR741994D patent/FR741994A/fr not_active Expired
• 1931
  • 1931-09-23 US US564725A patent/US2036119A/en not_active Expired - Lifetime
  • 1931-10-03 DE DEC45436D patent/DE614712C/de not_active Expired
• 1932
  • 1932-09-09 GB GB25153/32A patent/GB393449A/en not_active Expired

Also Published As

Similar Documents