Invention Grant
- Patent Title: Reduction of the strip tension of rolling stock between two rolling units to a minimum
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Application No.: US13695391Application Date: 2011-04-18
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Publication No.: US09694403B2Publication Date: 2017-07-04
- Inventor: Gerald Eckerstorfer , Ansgar Grüss , Otto Schmid
- Applicant: Gerald Eckerstorfer , Ansgar Grüss , Otto Schmid
- Applicant Address: AT
- Assignee: PRIMETALS TECHNOLOGIES AUSTRIA GMBH
- Current Assignee: PRIMETALS TECHNOLOGIES AUSTRIA GMBH
- Current Assignee Address: AT
- Agency: Ostrolenk Faber LLP
- Priority: ATA735/2010 20100430
- International Application: PCT/EP2011/056079 WO 20110418
- International Announcement: WO2011/134811 WO 20111103
- Main IPC: B21B37/50
- IPC: B21B37/50 ; B21B37/52 ; B21B37/58 ; B21B39/02 ; B21B39/12 ; B21B41/00 ; B21B41/10 ; B65H20/34

Abstract:
A method for reducing the strip tension of a rolling stock, may include: transporting the rolling stock using a roller table between two successive rolling units, wherein a rolling stock loop is formed in a depression in a section of the roller table between the two rolling units, the rolling stock loop being supported by the roller table at least in one off-center portion of the section, wherein the supporting line of the roller table in this portion corresponds to the catenary curve of the free span; measuring a loop depth of the rolling stock loop; calculating a desired value of the loop depth that corresponds substantially to the free span, e.g., depending on the material, thickness and temperature of the rolling stock; controlling the main drives and/or the gap adjustment of the rolling units based on the desired value and the measured loop depth, such that the loop depth substantially corresponds to the desired value.
Public/Granted literature
- US20130074557A1 REDUCTION OF THE STRIP TENSION OF ROLLING STOCK BETWEEN TWO ROLLING UNITS TO A MINIMUM Public/Granted day:2013-03-28
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