公开(公告)号：US3148563A

公开(公告)日：1964-09-15

申请号：US3416560

申请日：1960-06-06

申请人： SOUTH AFRICAN IRON & STEEL

发明人： JOHN HARLEY ,  JAKOB ZAWELS

IPC分类号： B21B1/18 ,  B21B38/00 ,  B23D36/00 ,  G01V3/02 ,  H03K17/95

CPC分类号： H03K17/9547 ,  B21B1/18 ,  B21B38/00 ,  B23D36/00 ,  G01V3/02 ,  Y10T83/541

公开(公告)号：US2872039A

公开(公告)日：1959-02-03

申请号：US46704254

申请日：1954-11-05

申请人： WEAN ENGINEERING CO INC

发明人： LYNN HOLMES W ,  GEISZLER ALBERT R

IPC分类号： B21B38/00

CPC分类号： B21B38/00

公开(公告)号：US2332289A

公开(公告)日：1943-10-19

申请号：US44574342

申请日：1942-06-04

申请人： SPERRY PROD INC

发明人： ALEXANDER ZEITLIN

IPC分类号： B21B38/00

CPC分类号： B21B38/00

公开(公告)号：US2212738A

公开(公告)日：1940-08-27

申请号：US25677039

申请日：1939-02-16

申请人： AMERICAN ROLLING MILL CO

发明人： HUDSON EDWIN B

IPC分类号： B21B38/00

CPC分类号： B21B38/00

公开(公告)号：US2182651A

公开(公告)日：1939-12-05

申请号：US19099638

申请日：1938-02-17

申请人： WESTINGHOUSE ELECTRIC & MFG CO

发明人： WILSON EARL D ,  STOLTZ GLENN E

IPC分类号： B21B38/00

CPC分类号： B21B38/00 ,  B21B2273/22

公开(公告)号：US11517951B2

公开(公告)日：2022-12-06

申请号：US16924892

申请日：2020-07-09

申请人： Q-tec Prüfgeräte GmbH

发明人： Otto Rothenaicher

IPC分类号： B21B33/00 ,  B21B38/00 ,  B26D5/00 ,  F16P3/14 ,  G05B19/406

摘要： The invention is directed to a safety device for a machine that includes a first transceiver unit for emitting a first light beam in a first time slot and for receiving a second light beam. The safety device includes a second transceiver unit arranged for emitting the second light beam in a second time slot that is different from the first one. The safety device also includes an evaluation unit for determining a reflecting object between the first transceiver unit and the second transceiver unit, only if the first light beam is received by the first transceiver unit in the first time slot or the second light beam is received by the second transceiver unit in the second time slot. Additionally, a non-reflecting object may be detected, if by neither of the two transceiver units in both time slots one of the two light beams is received.

公开(公告)号：US20220274148A1

公开(公告)日：2022-09-01

申请号：US17676913

申请日：2022-02-22

申请人： FAGOR ARRASATE, S.COOP.

发明人： Gorka IZA GALLASTEGUI ,  Elena Silvestre Soriano ,  Jose Manuel Piquer Perez ,  Alberto Mas Acuna

IPC分类号： B21D1/02 ,  B21B38/00

摘要： A method that includes moving a sheet material between first and second groups of rolls following a winding path according to a setpoint speed, driving the first group of rolls by a first drive, driving the second group by a second drive independent of the first drive, measuring the speed of the first drive, measuring the speed of the second drive controlling the speed of the first drive by means of a first torque setpoint signal which is a function of a first error signal obtained from the difference between the setpoint speed and the speed of the first drive, and controlling the speed of the second drive by means of a second torque setpoint signal which is a function of a second error signal obtained from the difference between the setpoint speed and the speed of the second drive, and is also a function of an additional torque gain.

公开(公告)号：US11426777B2

公开(公告)日：2022-08-30

申请号：US16041293

申请日：2018-07-20

申请人： Novelis Inc.

发明人： Mehdi Shafiei ,  Andrew James Hobbis ,  David Anthony Gaensbauer ,  Jeffery Edward Geho ,  Steven L. Mick

IPC分类号： B21B1/22 ,  B21B37/30 ,  B21B37/28 ,  B21B31/20 ,  B21B38/00 ,  B21B37/58 ,  B21B13/14 ,  B21B3/00 ,  B21B29/00 ,  B21H8/00

摘要： Systems and methods of applying a texture on a substrate include applying a texture to the substrate with a work stand of a coil-to-coil process. The work stand includes an upper work roll and a lower work roll vertically aligned with the upper work roll. At least one of the upper work roll and the lower work roll includes the texture. Applying the texture includes applying, by the upper work roll and a lower work roll, a work roll pressure on an upper surface and a lower surface of the substrate. The method further includes adjusting a contact pressure parameter of the work stand such that the work stand provides a desired contact pressure distribution across the width of the substrate and a desired thickness profile of the edges of the substrate while an overall thickness of the substrate remains substantially constant.

公开(公告)号：US11340196B2

公开(公告)日：2022-05-24

申请号：US16771553

申请日：2018-12-14

申请人： HITACHI METALS, LTD.

发明人： Keishi Sato ,  Masahiko Ohshima ,  Toshiyuki Hattori ,  Tomohisa Hemmi ,  Masaaki Tsuji

IPC分类号： G01N29/14 ,  B21B38/00 ,  G01N29/44

摘要： A crack detection device performs online identification of the occurrence and propagation of a crack in the surface of the barrel portion of a rolling roll. A rolling roll is provided with the crack detection function without any substantial modification of the rolling device and without any continuous disposition of multiple sensors in the rolling roll. The detection device is incorporated in a rolling device having a barrel portion and shaft portions extending as a unit from both ends of the barrel portion and includes the rolling roll where an AE sensor detecting elastic waves generated on a surface of the barrel portion and a calculation unit calculating a feature value of the elastic waves detected by the AE sensor are disposed in at least one of the shaft portions and a discrimination unit discriminating, from the feature value, elastic waves attributable to a crack occurring in the barrel surface.

公开(公告)号：US11273476B2

公开(公告)日：2022-03-15

申请号：US17270904

申请日：2019-07-30

申请人： Primetals Technologies Germany GmbH

发明人： Emmeran Sollner

IPC分类号： B21B15/00 ,  B21B1/16 ,  B21B37/00 ,  B21B38/00

摘要： Hot rolling stock (1) made of metal which is rolled in at least one roll stand (2) and then cooled in a cooling section (5) arranged downstream of the at least one roll stand (2). Sound generated by means of a sound generator arrangement (8) is coupled into the rolling stock (1) by a coupling device (1) so that a standing sound wave is formed at least in the region of the rolling stock (1) which is located in the vicinity of the coupling device (10).