EP0284827A2 - Cage à deux cylindres pour laminer les profils en zigzag, en particulier les cloisons de palplanches en Z - Google Patents

Cage à deux cylindres pour laminer les profils en zigzag, en particulier les cloisons de palplanches en Z Download PDF

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Publication number
EP0284827A2
EP0284827A2 EP88103454A EP88103454A EP0284827A2 EP 0284827 A2 EP0284827 A2 EP 0284827A2 EP 88103454 A EP88103454 A EP 88103454A EP 88103454 A EP88103454 A EP 88103454A EP 0284827 A2 EP0284827 A2 EP 0284827A2
Authority
EP
European Patent Office
Prior art keywords
web
thickness
zigzag
rolling
caliber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP88103454A
Other languages
German (de)
English (en)
Other versions
EP0284827A3 (fr
Inventor
Hugo Dr. Feldmann
Georg Engel
Wolfgang Ellinghaus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Schloemann Siemag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0284827A2 publication Critical patent/EP0284827A2/fr
Publication of EP0284827A3 publication Critical patent/EP0284827A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/082—Piling sections having lateral edges specially adapted for interlocking with each other in order to build a wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2269/00—Roll bending or shifting
    • B21B2269/12—Axial shifting the rolls
    • B21B2269/14—Work rolls

Definitions

  • the invention relates to a duo roll stand for rolling zigzag-shaped profiles having at least one web and two flanges, in particular Z-shaped sheet piling, with radial adjustment of the calibrated rolls.
  • Several calibers can be cut into the rollers.
  • the invention has for its object to make the rolling of zigzag-shaped profiles, in particular Z-shaped sheet piles, more economical.
  • the solution to this problem consists in the simultaneous application of both a calibration measure by cutting the caliber incisions for the flanges at a steeper angle than the caliber cut or cuts for the web or webs, and a known apparatus measure by axially displacing at least one roller is.
  • the combination of these features is based on the knowledge that a relative displacement of rolls calibrated in the sense of the invention not only leads to the same influence on flange thicknesses because they are relatively steep, but also to a relatively less influence on the flatter web thickness.
  • the bottom roller is advantageously made axially displaceable. Since a flange thickness tolerance in the range of ⁇ 0.1 mm is required, the invention provides that the axial displacement of one roller can be regulated in a comparison of the target and actual value, preferably via a double load hydraulic control cylinder.
  • the actual value can be supplied by a thickness measuring device measuring the thickness of one of the two flanges, however, the actual value of the axial position of the axially non-displaceable roller can also be used as a target value for the regulation of the axially displaceable roller by means of a displacement sensor, as is the case in US-PS 42 02 192 for the rolling of angle steel is evident.
  • the sheet pile profile shown in Fig. 1 has two parallel flanges F connected to a web S.
  • the main dimensions are the width b and the height h, which can vary depending on the delivery program. But even within profiles of the same main dimensions b and h there are standardized differences in the web thickness s on the one hand and the flange thickness t on the other (Fig. 2).
  • the set of calibrated rolls shown in Fig. 2 consists of the upper roll 1 and the lower roll 2, which are provided in the embodiment with two identical, zigzag-shaped calibres A and B, i. H. one caliber serves as a reserve caliber. It is therefore sufficient to explain only the caliber A in detail.
  • the caliber incisions 3 and 5 for the flanges F are cut with a steeper or larger angle ⁇ with respect to a roller center axis than the caliber incision 4 for the web S, which is cut with an angle ⁇ .
  • the length of the caliber incisions 3 and 5 corresponds to the effective length of the flanges F resulting from the main dimensions b and h, as the length of the caliber incision 4 corresponds to the length of the web S.
  • the lower roller 2 is axially displaceable in the direction of the arrow 6, namely by means of a stand-fixed hydraulic actuating cylinder 7 with actuating piston 8.
  • the flange thicknesses t can be changed to a greater extent via this axial displacement device than a change in the web thickness s inevitably occurs.
  • the changes in thickness of the flanges F on the one hand and of the web S on the other hand behave with an axial relative adjustment of the rollers 1, 2 like the sines of the (larger) incision angle ⁇ for the flanges and the (smaller) angle ⁇ for the web.
  • This combination of the wall thicknesses under the axial relative adjustment of the rollers complies with the fact that greater value is placed on the accuracy of the flange thicknesses t than on the web thickness s. It is therefore possible to roll Z-shaped sheet piles in caliber A (or B) with the same main dimensions b and h (Fig.
  • an axial thrust usually acts on the lower roller 2. It may then be sufficient to apply one-sided control to the piston 8.
  • Regulated axial positioning movements in both arrow directions 6 are also indicated for correcting the flange thicknesses t if the web thickness s is to be kept constant by an automatic roll gap control as part of a target / actual value comparison, since the flange thicknesses are also attained by a radial adjusting movement of at least one roller t experience a deviation.
  • a combined radial-axial roll gap regulation is possible due to the caliber cuts running at an angle to one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
EP88103454A 1987-03-31 1988-03-05 Cage à deux cylindres pour laminer les profils en zigzag, en particulier les cloisons de palplanches en Z Withdrawn EP0284827A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3710780 1987-03-31
DE19873710780 DE3710780A1 (de) 1987-03-31 1987-03-31 Duo-walzgeruest zum walzen von zickzackfoermigen profilen, insbesondere von z-foermigen spundwaenden

Publications (2)

Publication Number Publication Date
EP0284827A2 true EP0284827A2 (fr) 1988-10-05
EP0284827A3 EP0284827A3 (fr) 1989-02-22

Family

ID=6324521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88103454A Withdrawn EP0284827A3 (fr) 1987-03-31 1988-03-05 Cage à deux cylindres pour laminer les profils en zigzag, en particulier les cloisons de palplanches en Z

Country Status (3)

Country Link
EP (1) EP0284827A3 (fr)
JP (1) JPS63256202A (fr)
DE (1) DE3710780A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013150324A1 (fr) 2012-04-02 2013-10-10 Arcelormittal Investigación Y Desarrollo S.A. Procédé de laminage à chaud de palplanches à profil en z
EP4537949A1 (fr) * 2023-10-10 2025-04-16 SMS group GmbH Laminoir à profilés et procédé de laminage pour laminer des profilés

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5192771A (en) * 1975-02-12 1976-08-14 Koyaitano yunibaasaruatsuenho
US4202192A (en) * 1978-06-21 1980-05-13 Nippon Steel Corporation Apparatus for controlling the position of roll in the direction of the roll axis
US4317350A (en) * 1978-11-20 1982-03-02 E. W. Sivachenko Corrugated plate having variable material thickness and method for making same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013150324A1 (fr) 2012-04-02 2013-10-10 Arcelormittal Investigación Y Desarrollo S.A. Procédé de laminage à chaud de palplanches à profil en z
US9636724B2 (en) 2012-04-02 2017-05-02 Arcelormittal Investigación Y Desarrollo S.L. Method for hot rolling Z-sections sheet piles
EP4537949A1 (fr) * 2023-10-10 2025-04-16 SMS group GmbH Laminoir à profilés et procédé de laminage pour laminer des profilés

Also Published As

Publication number Publication date
EP0284827A3 (fr) 1989-02-22
DE3710780A1 (de) 1988-10-13
JPS63256202A (ja) 1988-10-24

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