Wear resistant alloy for valve seat insert used in internal...

Details Wear resistant alloy for valve seat insert used in internal... Wear resistant alloy for valve seat insert used in internal...

2005-06-23

2009-11-03

Yee, Deborah (Department: 1793)

Metal treatment

Stock

Ferrous

C148S325000, C148S335000, C148S442000, C148S663000, C420S010000, C420S012000, C420S017000

Reexamination Certificate

active

07611590

ABSTRACT:
This invention related to a high carbon and high molybdenum/tungsten martenisitic type iron base alloy with excellent hot hardness and wear resistance for making valve seat insert. The alloy comprises of 2.05-3.60 wt % carbon, 0.1-3.0 wt % silicon, 0-2.0 wt % manganese, 3.0-10.0 wt % chromium, 11.0-25.0 wt % molybdenum and tungsten, 0.1-6.5 wt % nickel, 0-8.0 wt % vanadium, 0-6.0 wt % niobium, 0-8.0 wt % cobalt, and the balance being iron with impurities.

REFERENCES:
patent: 1556776 (1925-10-01), Flietermann
patent: 1599425 (1926-09-01), McGuire
patent: 1729245 (1929-09-01), Chace
patent: 1759477 (1930-05-01), Armstrong et al.
patent: 1760326 (1930-05-01), Stablein
patent: 1818054 (1931-08-01), Elmen
patent: 1876411 (1932-09-01), Gregg et al.
patent: 2099509 (1937-11-01), Blessing
patent: 2113937 (1938-04-01), Franks
patent: 2136946 (1938-11-01), McCurdy
patent: 2159723 (1939-05-01), Franks
patent: 2590835 (1952-04-01), Kirkby et al.
patent: 2602736 (1952-07-01), Sheridan et al.
patent: 2693413 (1954-11-01), Kirkby et al.
patent: 2793113 (1957-05-01), Ralt et al.
patent: 2809109 (1957-10-01), Field
patent: 3257178 (1966-06-01), Severns, Jr.
patent: 3295966 (1967-01-01), Steven
patent: 3410732 (1968-11-01), Smith
patent: 3756808 (1973-09-01), Webster
patent: 3850621 (1974-11-01), Haberling et al.
patent: 3859147 (1975-01-01), Philip
patent: 3873378 (1975-03-01), Webster
patent: 3876447 (1975-04-01), Lally
patent: 4021205 (1977-05-01), Matsuda et al.
patent: 4075999 (1978-02-01), Danis
patent: 4104505 (1978-08-01), Rayment et al.
patent: 4122817 (1978-10-01), Matlock
patent: 4155754 (1979-05-01), Lynn
patent: 4191562 (1980-03-01), Silence
patent: 4224060 (1980-09-01), de Souza et al.
patent: 4228223 (1980-10-01), Knotek et al.
patent: 4279074 (1981-07-01), Zell et al.
patent: 4292074 (1981-09-01), Komiyama et al.
patent: 4363660 (1982-12-01), Wakita et al.
patent: 4430297 (1984-02-01), Crook
patent: 4568393 (1986-02-01), Kane et al.
patent: 4724000 (1988-02-01), Larson et al.
patent: 4729872 (1988-03-01), Kishida et al.
patent: 4778522 (1988-10-01), Maki et al.
patent: 4810464 (1989-03-01), Szereto et al.
patent: 4822695 (1989-04-01), Larson et al.
patent: 4844024 (1989-07-01), Fujiki et al.
patent: 4880461 (1989-11-01), Uchida
patent: 4902473 (1990-02-01), Arata et al.
patent: 4929419 (1990-05-01), Wegman et al.
patent: 5041158 (1991-08-01), Larson
patent: 5116571 (1992-05-01), Abe et al.
patent: 5147475 (1992-09-01), Holmberg
patent: 5194221 (1993-03-01), Culling
patent: 5221373 (1993-06-01), Schuler et al.
patent: 5225007 (1993-07-01), Hattori et al.
patent: 5246661 (1993-09-01), Culling
patent: 5292382 (1994-03-01), Longo
patent: 5316596 (1994-05-01), Kataoka
patent: 5360592 (1994-11-01), Culling
patent: 5458703 (1995-10-01), Nakai
patent: 5578773 (1996-11-01), Wisell
patent: 5674449 (1997-10-01), Liang et al.
patent: 6200688 (2001-03-01), Liang et al.
patent: 6248292 (2001-06-01), Ando et al.
patent: 6436338 (2002-08-01), Qiao
patent: 6485678 (2002-11-01), Liang et al.
patent: 6702905 (2004-03-01), Qiao et al.
patent: 6723182 (2004-04-01), Bahmiller
patent: 6866816 (2005-03-01), Liang et al.
patent: 6916444 (2005-07-01), Liang
patent: 1023781 (1958-02-01), None
patent: 1142002 (1963-01-01), None
patent: 2929811 (1980-02-01), None
patent: 2913221 (1980-10-01), None
patent: 103 05 568 (2003-08-01), None
patent: 0264528 (1988-04-01), None
patent: 0430241 (1991-06-01), None
patent: 0559899 (1993-09-01), None
patent: 0665068 (1995-08-01), None
patent: 1108800 (2001-06-01), None
patent: 2835850 (2003-08-01), None
patent: 553397 (1943-05-01), None
patent: 741053 (1955-11-01), None
patent: 1406696 (1975-09-01), None
patent: 1567524 (1980-05-01), None
patent: 48052619 (1973-07-01), None
patent: 48102717 (1973-12-01), None
patent: 55-145156 (1980-11-01), None
patent: 57-130714 (1982-08-01), None
patent: 57-203753 (1982-12-01), None
patent: 59-229465 (1984-12-01), None
patent: 60-258449 (1985-12-01), None
patent: 02015149 (1990-01-01), None
patent: 02015150 (1990-01-01), None
patent: 2-30730 (1990-02-01), None
patent: 3-13542 (1991-01-01), None
patent: 05179394 (1993-07-01), None
patent: 6-256889 (1994-09-01), None
patent: 8-209299 (1996-08-01), None
patent: 1068041 (1998-03-01), None
patent: 11061320 (1999-03-01), None
patent: 2000-28009 (2000-10-01), None
Strong et al., “A review of valve seat insert material properties required for success,”Proc. of the International Symposium on Valvetrain Design and Materials, Apr. 14, 1997, pp. 121-127.
Strong, G. (Winsert) Database Metadex ″Online! Materials Information, The Institute of Metals, London, GB; “Iron-base alloy replaces cobalt in auto engines.” Retrieved from STN Database accession No. 61-115 XP 002183696, abstract; from Advanced Materials & Processes (1999) 156 (4), 67-68.

Affiliated with

Also associated with

Rating

Wear resistant alloy for valve seat insert used in internal... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wear resistant alloy for valve seat insert used in internal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wear resistant alloy for valve seat insert used in internal... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4125327