Metal treatment – Process of modifying or maintaining internal physical... – Heating or cooling of solid metal
Patent
1998-10-09
2000-06-27
Ip, Sikyin
Metal treatment
Process of modifying or maintaining internal physical...
Heating or cooling of solid metal
148650, C21D 604, C21D 800
Patent
active
060802472
ABSTRACT:
Comminuting media comprising a martensitic/austenitic steel which contains at least about 40 percent by volume retained austenite, a portion of which is work transformable to martensite. The steel contains sufficient alloy content such that the steel has a martensite start and finish temperature sufficiently low to allow partial transformation of austenite to martensite during quenching of the steel from the austenitic range, but leaving some retained transformable austenite. This steel is used as a comminuting media, the retained austenite transforming to martensite through working or abrasion of the comminuting media during use in a comminution process. The outermost volume of the comminuting media which forms the wear surface and which contains the retained austenite in an amount of at least 40 percent by volume comprises at least 25 percent of the total volume of the comminuting media.
REFERENCES:
patent: 2449023 (1948-09-01), Thornton
patent: 2863790 (1958-12-01), Chen
patent: 3649370 (1972-03-01), Dorn et al.
patent: 3663215 (1972-05-01), Tanczyn
patent: 3696486 (1972-10-01), Benjamin
patent: 3860457 (1975-01-01), Vourinen et al.
patent: 3895972 (1975-07-01), Woodilla et al.
patent: 3912503 (1975-10-01), Schumacher et al.
patent: 4016009 (1977-04-01), Economopoulos et al.
patent: 4016015 (1977-04-01), Respen et al.
patent: 4023988 (1977-05-01), Stickels et al.
patent: 4039356 (1977-08-01), Schumacher et al.
patent: 4043842 (1977-08-01), Joiret
patent: 4099967 (1978-07-01), Schumacher et al.
patent: 4101318 (1978-07-01), Rudy
patent: 4130418 (1978-12-01), Hartvig
patent: 4146412 (1979-03-01), Schumacher et al.
patent: 4170499 (1979-10-01), Thomas et al.
patent: 4190422 (1980-02-01), Hitzrot, Jr.
patent: 4194906 (1980-03-01), Krantz et al.
patent: 4394168 (1983-07-01), Hartvig et al.
patent: 4437902 (1984-03-01), Pickens et al.
patent: 4589934 (1986-05-01), Glodowski et al.
patent: 4715546 (1987-12-01), Holming et al.
patent: 4814140 (1989-03-01), Magee, Jr.
patent: 4840686 (1989-06-01), Arnett et al.
patent: 4911763 (1990-03-01), Farge et al.
patent: 4923675 (1990-05-01), Svidunovich et al.
patent: 4929419 (1990-05-01), Wegman et al.
patent: 5019332 (1991-05-01), Wegman et al.
patent: 5034069 (1991-07-01), Farge et al.
patent: 5273570 (1993-12-01), Sato et al.
patent: 5308408 (1994-05-01), Katila
patent: 5332317 (1994-07-01), Niwa et al.
patent: 5344502 (1994-09-01), Mack et al.
patent: 5439535 (1995-08-01), Snagovski et al.
patent: 5494537 (1996-02-01), Miyakusu et al.
Norman, T.E., Loeb, C.M. Jr., "Wear Tests on Grinding Balls" TRANS AIME, vol. 176, (1948), pp. 490-526.
Norman, T.E., "Climax Find New Austenitic Alloy Ideal for Ultra-Abrasive Mine-Mill Applications", Engineering and Mining Journal, vol. 166, No. 4 (Apr. 1965) pp. 86-90.
Moroz, Peter J. Factors Affecting the Wear of Grinding Media During Wet Ore Grinding When the Corrosive Componebnt of Wear is Small, paper presented at Corrosion/85, sponsored by National Association of Corosion Engineers (Mar. 25-29, 1985).
Arnett Charles R.
Lorenzetti James J.
Moroz, Jr. Peter J.
GS Technologies Operating Company
Ip Sikyin
Kircher William B.
LandOfFree
Comminuting media comprising martensitic/austenitic steel contai does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Comminuting media comprising martensitic/austenitic steel contai, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Comminuting media comprising martensitic/austenitic steel contai will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1781050