Hot rolling thin strip

Details Hot rolling thin strip Hot rolling thin strip

2006-08-22

2006-08-22

Larson, Lowell A. (Department: 3725)

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

C072S205000

Reexamination Certificate

active

07093342

ABSTRACT:
Thin steel strip is passed through a pinch roll stand comprising pinch rolls to a rolling mill comprising a pair of work rolls and upper and lower backing rolls. Strip passes through the bite between the work rolls and strip squeezing forces are applied between the work rolls to reduce the thickness of the strip. The pinch rolls apply tension to the strip passing to the work rolls. In order to minimize generation of crimping defects in the strip, the tension applied by the pinch rolls is high enough to ensure no part of the strip entering the work rolls is in longitudinal compression such as to exceed the buckling stress of the strip. The applied tension is sufficiently low as to produce no more than 1% strip elongation through creep. The strip may be hot rolled by the work rolls at a temperature in the range of 700° C.–1200° C.

REFERENCES:
patent: 3292402 (1966-12-01), O'Brien
patent: 4261190 (1981-04-01), Fapiano
patent: 4766947 (1988-08-01), Shibuya et al.
patent: 44 13 913 (1994-11-01), None
patent: 0 760 397 (1997-03-01), None
patent: 0 903 187 (1999-03-01), None
patent: 2 072 556 (1981-10-01), None
patent: 58-006706 (1983-01-01), None
patent: 63-052702 (1988-03-01), None
patent: 63-52702 (1988-03-01), None
patent: 02 280904 (1990-11-01), None
patent: 08-192210 (1996-07-01), None
patent: 09 019748 (1997-01-01), None
patent: 09 052108 (1997-02-01), None
patent: 92/01524 (1992-02-01), None
patent: 01/39905 (2001-06-01), None
Wray P J: “Effect of Carbon Content on the Plastic Flow of Plain Carbon Steels at Elevated Temperatures” Metallurgical Transactions A. Physical Metallurgy and Materials Science, Metallurgical Society of AIME, New Youk, US, vol. 13A, Jan. 1982, pp. 125-134, XP008061006.
Somers R R et al: “Verification and Applications of a Model for Predicting Hot Strip Profile, Crown and Flatness: Strip Profile, Crown and Flatness” Iron and Steel Engineer., vol. 61, No. 9, Sep. 1984, pp. 35-44, XP002374735 US Association of Iron and Steel Engineers. Pittsburgh.
Supplementary European Search Report for Application No. EP 01 93 3465 dated Mar. 29, 2006.

Affiliated with

Also associated with

Rating

Hot rolling thin strip does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hot rolling thin strip, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hot rolling thin strip will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3691774