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특허 상세정보

Dynamic process for enhancing the wear resistance of ferrous articles

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F41A-021/22   
미국특허분류(USC) 042/076.01; 089/014.05; 428/908.8
출원번호 UP-0723368 (2007-03-19)
등록번호 US-7669358 (2010-04-21)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Adams, William V.
인용정보 피인용 횟수 : 1  인용 특허 : 14

A dynamic process for increasing the wear life of ferrous articles subjected to a high-temperature environment created by combustion of a propellant or fuel comprises selecting the propellant or fuel so that its combustion products include relatively large amounts of nitrogen, which nitrogen forms a protective nitride layer on the surface of the ferrous article. Disclosed is a specific embodiment of the invention for prolonging the wear life of gun barrels.


The invention claimed is: 1. A method for enhancing the wear life of a ferrous article which is exposed to a high-temperature atmosphere created by the combustion of a fuel, said method comprising: providing a nitrogen content fuel, said fuel generating, upon combustion, a combustion product gas which includes at least 20% by mole fraction nitrogen, wherein the mole fraction ratio of CO to CO2 in the combustion product gas is greater than 3.0, and the mole fraction ratio of nitrogen to CO in the combustion product gas is at least 0.65; combusting said f...

이 특허에 인용된 특허 (14)

  1. Kampichler Guenter,DEX ; Eder Erich,DEX. Combustion engine. USP1999035887558.
  2. Thomas K. Highsmith ; Daniel W. Doll ; Louis F. Cannizzo. Energetic plasticizer, and explosive and propellant composition containing same. USP2002076425966.
  3. Knowlton Gregory D. ; Ludwig Christopher P.. Gas generating compositions. USP2001056235132.
  4. Knowlton Gregory D. ; Ludwig Christopher P. ; Haun Daniel. Gas generating compositions. USP1998075780768.
  5. Williams Laurence O. (Colchester VT). High velocity gun propellant. USP1996105565646.
  6. Williams Laurence O. (Orlando FL). High velocity gun propellant. USP1996015487798.
  7. Warnecke, Christian. Method of internally coating a weapon barrel by a plasma flame. USP2003016511710.
  8. Williams Laurence O. (Colchester VT). Method of propelling a projectile with ammonium azide. USP1997095663523.
  9. Wu Jiann-Kuo,TWX ; Lai Fu-Der,TWX. Method of surface modification for tool steels. USP1998095810947.
  10. Nimitz Jonathan Shelley (Albuquerque NM) Lankford Lance Harrell (Newcastle CA). Methods and compositions for sterilization of articles. USP1997105674451.
  11. Debe Mark K. (Stillwater MN) Dower William V. (St. Paul MN). Nanostructured thermal transfer donor element. USP1995105459016.
  12. Katzakian ; Jr. Arthur ; Cheung Henry ; Grix Charles E. ; McGehee Donald C.. Solid solution vehicle airbag clean gas generator propellant. USP1998125847315.
  13. Hamilton Brian K. ; Stang Peter L.. Substantially smoke-free and particulate-free inflator for inflatable safety restraint system. USP1999025868424.
  14. Sayles David C. (Huntsville AL). Water-free solid propellant exhaust gases. USP1976033942319.