Metal treatment – Process of modifying or maintaining internal physical... – Treating loose metal powder – particle or flake
Reexamination Certificate
2011-03-22
2011-03-22
King, Roy (Department: 1733)
Metal treatment
Process of modifying or maintaining internal physical...
Treating loose metal powder, particle or flake
C075S710000, C241S023000
Reexamination Certificate
active
07909948
ABSTRACT:
When starting raw material powder is passed through a pair of rolls (2a), plastic working is applied to the starting raw material powder, and the crystal grain diameter of a metal or alloy constituting a matrix of the powder particle after processed is miniaturized. According to the thus provided alloy powder raw material, the maximum size of the powder particle is not more than 10 mm and the minimum size of the powder particle is not less than 0.1 mm, and the maximum crystal grain diameter of the metal or alloy constituting the matrix of the powder particle is not more than 30 μm.
REFERENCES:
patent: 2791498 (1957-05-01), Brundin et al.
patent: 2873225 (1959-02-01), Adams et al.
patent: 3179516 (1965-04-01), Cross
patent: 3407062 (1968-10-01), Matthews et al.
patent: 4474715 (1984-10-01), Weber et al.
patent: 5078962 (1992-01-01), Regazzoni et al.
patent: 5292186 (1994-03-01), Kubo et al.
patent: 1032482 (1966-06-01), None
patent: 3-90530 (1991-04-01), None
patent: 4-231435 (1992-08-01), None
patent: 5-320715 (1993-12-01), None
patent: 6-172949 (1994-06-01), None
patent: 8-269589 (1996-10-01), None
patent: 10-195502 (1998-07-01), None
patent: 2000-87199 (2000-03-01), None
patent: 2001-294966 (2001-10-01), None
patent: 2001-303150 (2001-10-01), None
patent: 2002-129208 (2002-05-01), None
patent: 2002-249801 (2002-09-01), None
patent: 2002-256307 (2002-09-01), None
patent: 2002-317236 (2002-10-01), None
patent: 2003-277899 (2003-10-01), None
patent: 2003-313623 (2003-11-01), None
patent: WO 03/027342 (2003-04-01), None
Sotiri Papoulias, “Carbonyl Iron Powders,” ASM Handbooks Online, vol. 7, 2002.
Jorge Simão et al., “Surface alloying using PM composite electrode materials when electrical discharge texturing hardened AISI D2,” Journal of Materials Processing Technology, vol. 127, Issue 2, Sep. 30, 2002, pp. 211-216.
J.A. del Valle et al., “Texture evolution during large-strain hot rolling of the Mg AZ61 alloy” (2003)Materials Science and Engineering, vol. 355(1-2), p. 68-78.
M. Nakanishi et al., “Tensile properties of the ZK60 magnesium alloy produced by hot extrusion of machined chip” (1998)Journal of Materials Science Letters, vol. 17(23), p. 2003-2005.
Agata Hajime
Fukui Hideaki
Fukumoto Kazunori
Goto Mitsuhiro
Itakura Katsuhito
Clark & Brody
Gohsyu Co., Ltd.
Kessler Christopher
King Roy
Kurimoto Ltd.
LandOfFree
Alloy powder raw material and its manufacturing method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Alloy powder raw material and its manufacturing method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alloy powder raw material and its manufacturing method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2680594