Metal deforming – By use of roller or roller-like tool-element – With cleaning or conditioning of tool – or lubrication of...
Reexamination Certificate
2004-08-27
2008-10-14
Tolan, Edward (Department: 3725)
Metal deforming
By use of roller or roller-like tool-element
With cleaning or conditioning of tool, or lubrication of...
C072S043000, C072S201000, C072S252500
Reexamination Certificate
active
07434435
ABSTRACT:
The invention relates to a method and a device for applying an adjustable tensile-stress distribution, in particular in the edge regions during the cold-rolling of metal strips (16), in particular metal foil, in order to reduce the risk of an excessive build-up of tension and cracks at the edges of the strip, which can lead as a negative consequence to cracks in the strip and to a reduction in production, and in order to improve the surface of the strip and its planarity, even for a relatively high strip displacement speed, and also to reduce strip trimming widths. To achieve these aims, at least one or a combination of two of the following measures are implemented: a) separation of lubrication and cooling of the working rolls by lubricating on the run-in side and cooling on the discharge side, b) additional influencing of the strip edges using a hot edge spray”, in particular by spraying (21) rolling oil with differing temperatures in zones, c) use of a special cross-sectional configuration of the working rolls (12, 12′) in the vicinity of the strip edges, which creates a partial material build-up during the blooming pass, said build-up forming a longer strip edge with subsequent passes, thus counteracting the risk of an excessive build-up of tensile stress.
REFERENCES:
patent: 3802237 (1974-04-01), Albensi et al.
patent: 4344308 (1982-08-01), Shimada et al.
patent: 4619126 (1986-10-01), Kolecki
patent: 4671091 (1987-06-01), Atack et al.
patent: 4706480 (1987-11-01), Svatos
patent: 5165266 (1992-11-01), Ginzburg
patent: 5212975 (1993-05-01), Ginzburg
patent: 5799523 (1998-09-01), Seidel et al.
patent: 5943896 (1999-08-01), Rosenthal et al.
patent: 6490903 (2002-12-01), Ravenet et al.
patent: 6497127 (2002-12-01), Nishiura et al.
patent: 6598448 (2003-07-01), Barten et al.
patent: 32 35 444 (1984-03-01), None
patent: 36 14 487 (1987-11-01), None
patent: 201 06 972 (2001-08-01), None
patent: 0 672 471 (1999-12-01), None
patent: 1 222 973 (2002-07-01), None
Patent Abstracts of Japan, BD. 011, No. 368 (M-647), Dec. 2, 1987 & JP 62 142011 A (Ishikawajima Harima Heavy Ind Co Ltd), Jun. 25, 1987.
Patent Abstracts of Japan, BD. 016, No. 137 (M-1231), Apr. 7, 1992 & JP 03 297507 A (Showa Alum Corp), Dec. 27, 1991.
Patent Abstracts of Japan, BD. 017, No. 350 (M-1438), Jul. 2, 1993 & JP 05 050122 A (Ishikawajima Harima Heavy Ind Co Ltd), Mar. 2, 1993.
Bode Thorsten
Klöckner Jürgen
Ohrndorf Ralf
Pawelski Hartmut
Richter Hans-Peter
Kueffner Friedrich
SMS Demag AG
Tolan Edward
LandOfFree
Method and device for applying an adjustable tensile-stress... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and device for applying an adjustable tensile-stress..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for applying an adjustable tensile-stress... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3997714