US 12,435,386 B2
Intermediate heating station with support projections on lower mask
Björn Wenzel, Ulricehamn (SE); Drazen Klint, Ulricehamn (SE); and Marcus Leander, Blidsberg (SE)
Assigned to Automation, Press and Tooling, AP & T AB, Tranemo (SE)
Appl. No. 17/634,801
Filed by Automation, Press and Tooling, AP & T AB, Tranemo (SE)
PCT Filed Jul. 30, 2020, PCT No. PCT/EP2020/071478
§ 371(c)(1), (2) Date Feb. 11, 2022,
PCT Pub. No. WO2021/028230, PCT Pub. Date Feb. 18, 2021.
Claims priority of application No. 19191711 (EP), filed on Aug. 14, 2019.
Prior Publication US 2022/0340995 A1, Oct. 27, 2022
Int. Cl. C21D 9/54 (2006.01); B21D 37/16 (2006.01); C21D 1/34 (2006.01); C21D 1/673 (2006.01); C21D 7/13 (2006.01); C21D 9/00 (2006.01); C21D 9/46 (2006.01); F27D 5/00 (2006.01); F27D 9/00 (2006.01); H05B 3/00 (2006.01)
CPC C21D 9/54 (2013.01) [B21D 37/16 (2013.01); C21D 1/34 (2013.01); C21D 1/673 (2013.01); C21D 7/13 (2013.01); C21D 9/0025 (2013.01); C21D 9/46 (2013.01); F27D 5/0062 (2013.01); H05B 3/0061 (2013.01); C21D 2211/001 (2013.01); C21D 2221/00 (2013.01); F27D 2009/0002 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A heating station for heating a metal sheet blank, comprising a heating chamber,
lower heating element arranged in the heating chamber below a metal sheet blank when in a heating position, and configured to provide radiation heating towards the metal sheet blank, and
a lower mask arranged in the heating chamber below the metal sheet blank, adapted in shape and size to, when in the heating position, block the radiation heating from reaching at least a first portion of the metal sheet blank, and to allow radiation heating to reach at least a second portion of the metal sheet blank and heat the same,
wherein the lower mask comprises a plurality of support projections projecting from a main surface of the lower mask towards the metal sheet blank when in a heating position, which support projections are configured to support a bottom side of the metal sheet blank during heating of the metal sheet blank,
wherein the lower mask is operatively moveable from a first heating position towards a second heating position.