Jason A Mueller

US Patent:

8365562, Feb 5, 2013

Filed:

Jun 7, 2012

Appl. No.:

13/491244

Inventors:

Richard Britanik - Sarver PA, US
Tino Domanti - Coal Point, AU
Terry L. Gerber - Lisbon OH, US
Jason A. Mueller - McDonald PA, US
Glen Wallace - Whitebridge, AU
Harold Bradley Rees - Ladoga IN, US

Assignee:

Nucor Corporation - Charlotte NC

International Classification:

B21B 37/00
B21B 37/58

US Classification:

72 92, 295277, 72 94, 72 118, 72 169, 72 188, 700154, 700155

Abstract:

Apparatus and method of controlling strip geometry in casting strip having a rolling mill. A target thickness profile is calculated as a function of the measured entry thickness profile of the strip while satisfying profile and flatness parameters. A differential strain feedback from longitudinal strain in the strip is calculated by a control system by comparing the exit thickness profile with the target thickness profile, and a control signal is generated to control a device capable of affecting the geometry of the strip processed by the hot rolling mill. A feed-forward control reference and/or sensitivity vector may also be calculated as a function of the target thickness profile, and used in generating the control signal sent to the control device. The control device may be selected from one or more of the group consisting of a bending controller, gap controller and coolant controller.

US Patent:

8205474, Jun 26, 2012

Filed:

Dec 10, 2008

Appl. No.:

12/332040

Inventors:

Richard Britanik - Sarver PA, US
Tino Domanti - Coal Point, AU
Terry L. Gerber - Lisbon OH, US
Jason A. Mueller - McDonald PA, US
Glen Wallace - Whitebridge, AU
Harold Bradley Rees - Ladoga IN, US

Assignee:

Nucor Corporation - Charlotte NC

International Classification:

B21D 37/00
B21B 37/58

US Classification:

72 92, 72 118, 29527, 29 7, 700154

Abstract:

Apparatus and method of controlling strip geometry in casting strip having a rolling mill. A target thickness profile is calculated as a function of the measured entry thickness profile of the strip while satisfying profile and flatness parameters. A differential strain feedback from longitudinal strain in the strip is calculated by a control system by comparing the exit thickness profile with the target thickness profile, and a control signal is generated to control a device capable of affecting the geometry of the strip processed by the hot rolling mill. A feed-forward control reference and/or sensitivity vector may also be calculated as a function of the target thickness profile, and used in generating the control signal sent to the control device. The control device may be selected from one or more of the group consisting of a bending controller, gap controller and coolant controller.

US Patent:

20070220939, Sep 27, 2007

Filed:

Jan 19, 2007

Appl. No.:

11/625031

Inventors:

Richard Britanik - Sarver PA, US
Tino Domanti - Coal Point, AU
Terry L. Gerber - Lisbon OH, US
Jason A. Mueller - McDonald PA, US
Glen Wallace - Whitebridge, AU
Harold Bradley Rees - Ladoga IN, US

Assignee:

NUCOR CORPORATION - Charlotte NC

International Classification:

B21B 37/00

US Classification:

72 92

Abstract:

Apparatus and method of controlling strip geometry in casting strip having a rolling mill. A target thickness profile is calculated as a function of the measured entry thickness profile of the strip while satisfying profile and flatness operating requirements. A differential strain feedback from longitudinal strain in the strip is calculated by a control system by comparing the exit thickness profile with the target thickness profile, and a control signal is generated to control a device capable of affecting the geometry of the strip processed by the hot rolling mill. A feed-forward control reference and/or sensitivity vector may also be calculated as a function of the target thickness profile, and used in generating the control signal sent to the control device. The control device may be selected from one or more of the group consisting of a bending controller, gap controller and coolant controller.