B - Operations – Transporting – 21 – B
Patent
B - Operations, Transporting
21
B
80/47
B21B 31/22 (2006.01) B21B 31/16 (2006.01) B21B 37/64 (2006.01) B21B 38/10 (2006.01) B21B 13/10 (2006.01) B21B 31/32 (2006.01)
Patent
CA 2017347
ABSTRACT OF THE DISCLOSURE A method and an arrangement for automatically aligning horizontal rolls and vertical rolls in a universal rolling mill stand after the stand has been changed to new types of sections in a rolling mill train. The axial geometric configuration of the vertical rolls in the stand serve as a fixed reference value and the horizontal rolls are displaced radially and axially into roll positions which are measured by actual position indicators and from which the geometric roll gap center and the geometric roll center in the stand are determined. For taking into consideration the spring characteristic constants of the stand, the radial spring characteristic for the two horizontal rolls is determined together, the radial spring characteristic for each vertical roll is determined separately and the axial spring characteristic of one of the horizontal rolls is determined separately in accordance with one of the two axial directions. The rolls are moved towards each other electro- mechanically until a moment of contact and subsequently the roll body pressure is hydraulically increased to at least two pressure points and then the roll body pressure is relieved from the pressure points.
Porombka Burkhardt
Reismann Hans-Jurgen
Schmalz Walter
Marks & Clerk
Porombka Burkhardt
Reismann Hans-Jurgen
Schmalz Walter
Sms Schloemann-Siemag Aktiengesellschaft
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