Metal deforming – With use of control means energized in response to activator... – Metal deforming by use of roller or roller-like tool element
Reexamination Certificate
2005-03-22
2005-03-22
Larson, Lowell A. (Department: 3725)
Metal deforming
With use of control means energized in response to activator...
Metal deforming by use of roller or roller-like tool element
C072S229000, C072S247000
Reexamination Certificate
active
06868707
ABSTRACT:
A strip rolling mill includes a pair of upper and lower work rolls for rolling a strip, intermediate rolls for supporting each of the paired work rolls, and back-up rolls for supporting each of the intermediate rolls. Each of the work rolls is provided with a tapered portion at one end thereof so that the tapered portions of the work rolls are on opposite sides of roll bodies thereof with respect to roll axis directions. When the material with a constant width is being rolled, axial positions of the work rolls are set at appropriate positions and axial positions of the intermediate rolls are changed to control a thickness distribution in a width direction of the material being rolled. This arrangement significantly improves an edge drop and at the same time minimizes edge drop variations.
REFERENCES:
patent: 3857268 (1974-12-01), Kajiwaka
patent: 3902345 (1975-09-01), Shida
patent: 4369646 (1983-01-01), Kajiwara
patent: 5622073 (1997-04-01), Hiruta et al.
patent: 6286354 (2001-09-01), Kajiwara et al.
patent: 5045761 (1975-04-01), None
patent: 55077903 (1980-06-01), None
patent: 5918127 (1984-04-01), None
patent: 61126903 (1986-06-01), None
patent: 62151203 (1987-07-01), None
patent: 08192213 (1996-07-01), None
patent: 10076301 (1998-03-01), None
patent: 11123407 (1999-05-01), None
patent: 396065 (2000-07-01), None
patent: 396066 (2000-07-01), None
patent: 396067 (2000-07-01), None
patent: 407069 (2000-10-01), None
Akinori Hiraiwa, et al., “Development of Strip Profile Control System in Tandem Cold Rolling at Sakai Works” Nisshin Steel Technical Report, No. 79, pp. 47-48, 1999.
Horii Kenji
Kobayashi Hideo
Maeno Ichirou
Matsui Youichi
Nakamae Hirokazu
Crowell & Moring LLP
Hitachi , Ltd.
Larson Lowell A.
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