US 12,064,799 B2
Method and apparatus for producing flat metal products
Stefano Martinis, Udine (IT); and Paolo Bobig, San Canzian d'isonzo (IT)
Assigned to DANIELI & C. OFFICINE MECCANICHE S.P.A., Buttrio (IT)
Appl. No. 17/791,761
Filed by DANIELI & C. OFFICINE MECCANICHE S.P.A., Buttrio (IT)
PCT Filed Dec. 4, 2020, PCT No. PCT/IT2020/050302
§ 371(c)(1), (2) Date Jul. 8, 2022,
PCT Pub. No. WO2021/140531, PCT Pub. Date Jul. 15, 2021.
Claims priority of application No. 102020000000316 (IT), filed on Jan. 10, 2020.
Prior Publication US 2023/0042075 A1, Feb. 9, 2023
Int. Cl. B21B 37/20 (2006.01); B21B 1/46 (2006.01); B21B 13/18 (2006.01); B21B 13/22 (2006.01); B21B 15/00 (2006.01); B21B 37/26 (2006.01); B21B 37/46 (2006.01); B21B 37/50 (2006.01); B21B 37/58 (2006.01); B21B 39/08 (2006.01)
CPC B21B 37/26 (2013.01) [B21B 1/463 (2013.01); B21B 1/466 (2013.01); B21B 13/18 (2013.01); B21B 13/22 (2013.01); B21B 15/0007 (2013.01); B21B 37/20 (2013.01); B21B 37/46 (2013.01); B21B 37/50 (2013.01); B21B 37/58 (2013.01); B21B 39/084 (2013.01); B21B 2015/0014 (2013.01); B21B 2015/0057 (2013.01); B21B 2261/04 (2013.01); B21B 2265/06 (2013.01); B21B 2265/12 (2013.01); B21B 2271/02 (2013.01); B21B 2275/04 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for the production of flat metal products in endless and/or semi-endless mode, the method comprising:
continuously feeding a metal product to a rolling mill including at least first through fourth rolling stands, in which the rolling stands include roughing stands and subsequently finishing stands; and
performing a flying gauge change of the metal product exiting from the rolling mill without interrupting the rolling process, without modifying a rotation speed of rollers of at least the first rolling stand and without modifying a gap between the rollers of at least the first rolling stand, during the flying gauge change of the metal product.