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특허 상세정보

Process for producing tungsten heavy alloys

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B22F-001/00    B21B-003/00    C21D-008/02   
미국특허분류(USC) 148/115 ; F ; 72/202 ; 148/127 ; B ; 420/430
출원번호 US-0293030 (1989-01-03)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 34  인용 특허 : 13
초록

A consolidated tungsten alloy body consisting essentially of from about 60% to about 98% by weight of tungsten, balance, nickel and iron, containing a continuous phase of tungsten and a discontinuous phase of grains of a tungsten, nickel and iron alloy having an aspect ratio of at least 4:1 relatively uniformly distributed throughout the continuous phase and wherein said body has a recrystallization temperature of from about 1000°C. to about 1200°C. A process for producing the consolidated bodies comprises working and annealing at controlled temperatures...

대표
청구항

A process for producing consolidated tungsten heavy alloy bodies which process comprises: (a) forming a bar of a tungsten heavy alloy consisting essentially of from about 60% to about 9% by weight of tungsten, balance nickel and iron in a weight ratio of nickel to iron of from about 6: to about 9:1, by sintering at a temperature below the melting point of said iron an nickel,; (b) working the bar at a temperature of between about 700°C. and about 900°C. using a series of passes to achieve up to about a 5% reduction in cross-sectional area per pass to pro...

이 특허에 인용된 특허 (13)

  1. Patrician Thomas J. (Monroeton PA) Mullendore James A. (Towanda PA) Weaver Theodore L. (Troy PA) Charlesworth Clayton D. (Towanda PA). Doped molybdenum-tantalum wire and method for making. USP1982034322248.
  2. Mullendore James A. (Towanda PA) Spencer James R. (Sayre PA). Elongated tungsten heavy metal aritcle and method for producing same. USP1988064749410.
  3. Spencer James R. (Sayre PA) Mullendore James A. (Towanda PA). Fine grain tungsten heavy alloys containing additives. USP1989124885031.
  4. Mullendore James A. (Towanda PA) Reiman Scott K. (Auburn Heights MI) Kegel Andrew J. (Ulster PA). Frangible tungsten penetrator. USP1984074458599.
  5. Bose Animesh (Troy NY) German Randall M. (Latham NY) Sims David M. (Bonners Ferry ID). High strength, high hardness tungsten heavy alloys with molybdenum additions and method. USP1989014801330.
  6. Mullendore James A. (Towanda PA). Low density tungsten alloy article and method for producing same. USP1988114784690.
  7. Kegel Andrew J. (Albany OR) Spencer James R. (Sayre PA) Smith James S. (Towanda PA) Rhodes Russell H. (Monroeton PA) Mullendore James A. (Towanda PA). Material for multiple component penetrators and penetrators employing same. USP1989064836108.
  8. Spencer James R. (Sayre PA) Martin ; Jr. Harry D. (Troy PA). Printer wire for printer wire assembly, assembly and method for producing same. USP1981124307966.
  9. Spencer James R. (Sayre PA) Grover De Wayne R. (Towanda PA). Process for producing tungsten heavy alloy billets. USP1988054744944.
  10. Johnson Walter A. (Towanda PA) Kemp ; Jr. Preston B. (Athens PA) Spencer James R. (Sayre PA). Process for producing tungsten heavy alloy sheet. USP1989054832907.
  11. Kemp ; Jr. Preston B. (Athens PA) Johnson Walter A. (Towanda PA). Process for producing tungsten heavy alloy sheet. USP1989074847045.
  12. Spencer James R. (Syare PA) Grover De Wayne R. (Towanda PA). Process for producing tungsten heavy alloy sheet. USP1988094768365.
  13. Kemp ; Jr. Preston B. (Athens PA) Johnson Walter A. (Towanda PA) Spencer James R. (Sayre PA). Process for producing tungsten heavy alloy sheet using a metallic salt binder system. USP1988104777015.

이 특허를 인용한 특허 피인용횟수: 34

  1. Keeney,Michael D.; Jarboe,Michael Brent. Bolt assembly with locking system. USP2006097107715.
  2. Amick, Darryl D.. Ductile medium- and high-density, non-toxic shot and other articles and method for producing the same. USP2010017640861.
  3. Amick, Darryl D.. Ductile medium- and high-density, non-toxic shot and other articles and method for producing the same. USP2005056890480.
  4. Amick, Darryl D.. Ductile medium-and high-density, non-toxic shot and other articles and method for producing the same. USP2003036527880.
  5. Amick,Darryl D.. Ductile medium-and high-density, non-toxic shot and other articles and method for producing the same. USP2007097267794.
  6. Amick Darryl Dean. Ductile, high-density, non-toxic shot and other articles and method for producing same. USP2001086270549.
  7. Hong Moon Hee,KRX ; Baek Woon Hyung,KRX ; Noh Joon Woong,KRX ; Song Heung Sub,KRX ; Lee Seong,KRX ; Kim Eun Pyo,KRX. Fabrication method for tungsten heavy alloy. USP1999095956558.
  8. Jiranek ; II Marlin R. ; Keeney Michael D.. Firearm bolt. USP1998045740516.
  9. Morse, Joseph Franklin; Nauman, Ralph; Nichols, Robert Charles. Frangible firearm projectiles, methods for forming the same, and firearm cartridges containing the same. USP20190410260850.
  10. Wei,Tim T.; Tian,Luguang. High density nontoxic projectiles and other articles, and methods for making the same. USP2008077399334.
  11. Wei,Tim T.; Tian,Luguang. High density nontoxic projectiles and other articles, and methods for making the same. USP2008097422720.
  12. Spencer William R.. High strength, ductility, and toughness tungsten heavy alloy (WHA) materials. USP2000126156093.
  13. Amick Darryl Dean. Method for manufacturing tungsten-based materials and articles by mechanical alloying. USP2001066248150.
  14. Amick, Darryl D.. Method for manufacturing tungsten-based materials and articles by mechanical alloying. USP2003036527824.
  15. Segal Vladimir (1831-A Wild Oak Cir. Bryan TX 77802) Segal Leonid (1831-A Wild Oak Cir. Bryan TX 77802). Method of and apparatus for processing tungsten heavy alloys for kinetic energy penetrators. USP1997025600989.
  16. Amick, Darryl D.. Methods for producing medium-density articles from high-density tungsten alloys. USP2005046884276.
  17. Amick,Darryl D.. Methods for producing medium-density articles from high-density tungsten alloys. USP2008027329382.
  18. Darryl D. Amick. Methods for producing medium-density articles from high-density tungsten alloys. USP2002096447715.
  19. Tan Lye King,SGX. Non-magnetic, high density alloy. USP2000046045601.
  20. Kapoor, Deepak. Plasma spraying tungsten heavy alloys. USP199303H001146.
  21. Amick, Darryl D.. Pressing process for tungsten articles. USP2004066749802.
  22. Spencer William R.. Process for imparting high strength, ductility, and toughness to tungsten heavy alloy (WHA) materials. USP2000106136105.
  23. William R. Spencer. Process for imparting high strength, ductility, and toughness to tungsten heavy alloy (WHA) materials. USP2002076413294.
  24. Wei, Tim T.. Projectiles for shotgun shells and the like, and methods of manufacturing the same. USP2012028122832.
  25. Sorensen, Michael Clifford; Nauman, Ralph. Shot shells with performance-enhancing absorbers. USP2017069677860.
  26. Sorensen, Michael Clifford; Nauman, Ralph. Shot shells with performance-enhancing absorbers. USP2018029897424.
  27. Sorensen, Michael Clifford; Nauman, Ralph. Shot shells with performance-enhancing absorbers. USP20190210209044.
  28. Amick,Darryl D.. System and method for processing ferrotungsten and other tungsten alloys, articles formed therefrom and methods for detecting the same. USP2008067383776.
  29. Bose Animesh. Ternary heavy alloy based on tungsten-nickel-manganese. USP1999015863492.
  30. Kapoor, Deepak. Tungsten alloys for penetrator application and method of making the same. USP2005116960319.
  31. Amick, Darryl D.. Tungsten-containing articles and methods for forming the same. USP2004116823798.
  32. Amick,Darryl D.. Tungsten-containing articles and methods for forming the same. USP2007057217389.
  33. Amick,Darryl D.. Tungsten-containing articles and methods for forming the same. USP2006067059233.
  34. Amick,Darryl D.. Tungsten-containing firearm slug. USP2006027000547.