US 12,186,825 B2
Method for producing a continuous strip-shaped composite material
Thomas Runkel, Siegen (DE)
Assigned to SMS GROUP GMBH, Düsseldorf (DE)
Appl. No. 16/462,312
Filed by SMS group GmbH, Düsseldorf (DE)
PCT Filed Nov. 16, 2017, PCT No. PCT/EP2017/079415
§ 371(c)(1), (2) Date May 20, 2019,
PCT Pub. No. WO2018/091572, PCT Pub. Date May 24, 2018.
Claims priority of application No. 10 2016 222 813.7 (DE), filed on Nov. 18, 2016; application No. 10 2016 224 412.4 (DE), filed on Dec. 7, 2016; and application No. 10 2016 226 277.7 (DE), filed on Dec. 28, 2016.
Prior Publication US 2019/0366471 A1, Dec. 5, 2019
Int. Cl. B23K 20/04 (2006.01); B21B 1/02 (2006.01); B21B 1/04 (2006.01); B21B 1/22 (2006.01); B21B 1/46 (2006.01); B21D 39/03 (2006.01); B22D 11/14 (2006.01); B22D 11/16 (2006.01); B23K 20/26 (2006.01); B32B 15/01 (2006.01); C21D 8/02 (2006.01); C21D 9/56 (2006.01); C21D 9/60 (2006.01); B21B 1/26 (2006.01); B21B 1/38 (2006.01); B21C 47/22 (2006.01); B23K 101/16 (2006.01); B23K 103/04 (2006.01)
CPC B23K 20/04 (2013.01) [B21B 1/02 (2013.01); B21B 1/04 (2013.01); B21B 1/22 (2013.01); B21B 1/466 (2013.01); B21D 39/03 (2013.01); B22D 11/142 (2013.01); B22D 11/16 (2013.01); B23K 20/26 (2013.01); B32B 15/011 (2013.01); C21D 8/0205 (2013.01); C21D 8/0215 (2013.01); C21D 8/0226 (2013.01); C21D 9/561 (2013.01); C21D 9/562 (2013.01); C21D 9/60 (2013.01); B21B 2001/028 (2013.01); B21B 2001/225 (2013.01); B21B 1/26 (2013.01); B21B 2001/383 (2013.01); B21C 47/22 (2013.01); B23K 2101/16 (2018.08); B23K 2103/04 (2018.08); B32B 2250/02 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for producing a continuous, strip-shaped composite material, the method comprising:
(i) providing a base material, whereby a slab is continuously formed from a strand produced by at least one casting machine, and providing at least one cladding material formed as a metal strip by a coil unwinding unit,
(ii) bringing together the slab produced by the at least one casting machine and the cladding material unwound by the coil unwinding unit, and
(iii) hot rolling the slab and the cladding material, which have been brought together, to form the continuous, strip-shaped composite material via roll cladding,
wherein, before step (ii), the slab is descaled and the cladding material is cleaned and/or descaled,
wherein, before step (ii), the slab and/or the cladding material are heated by means of an induction heater to a temperature greater than respective crystallization temperatures of the slab and/or the cladding material,
wherein, before step (iii), at least one of the slab and the cladding material is guided through a protective gas unit,
wherein a surface temperature of at least one of the slab and the cladding material is increased by a thermal radiator arranged upstream of and directly adjacent to a roll-cladding unit at which step (iii) begins and downstream of the protective gas unit,
wherein the base material is continuously and vertically cast in the casting machine and exits through an opening of a mold of the casting machine into a strand guiding system having cooling,
wherein the coil unwinding unit is accommodated in a heatable chamber and the cladding material wound thereon is thus heated to a predetermined temperature.