EP1909983B1 - Method for automatically zeroizing a universal edger stand - Google Patents

Method for automatically zeroizing a universal edger stand Download PDF

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Publication number
EP1909983B1
EP1909983B1 EP06777886A EP06777886A EP1909983B1 EP 1909983 B1 EP1909983 B1 EP 1909983B1 EP 06777886 A EP06777886 A EP 06777886A EP 06777886 A EP06777886 A EP 06777886A EP 1909983 B1 EP1909983 B1 EP 1909983B1
Authority
EP
European Patent Office
Prior art keywords
roll
rolls
horizontal
vertical
rolling
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.)
Active
Application number
EP06777886A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1909983A1 (en
Inventor
Marc Hebbert
Marc Loutsch
Bob Manet
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.)
ArcelorMittal Belval and Differdange SA
Original Assignee
ArcelorMittal Belval and Differdange SA
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 ArcelorMittal Belval and Differdange SA filed Critical ArcelorMittal Belval and Differdange SA
Priority to PL06777886T priority Critical patent/PL1909983T3/pl
Publication of EP1909983A1 publication Critical patent/EP1909983A1/en
Application granted granted Critical
Publication of EP1909983B1 publication Critical patent/EP1909983B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/10—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-gap, e.g. pass indicators
    • B21B38/105—Calibrating or presetting roll-gap
    • 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
    • B21B1/088—H- or I-sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/08—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process
    • B21B13/10—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process all axes being arranged in one plane
    • B21B2013/106—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process all axes being arranged in one plane for sections, e.g. beams, rails

Definitions

  • the present invention generally relates to a method for automatically zeroizing a universal edger stand for rolling H-section products.
  • a universal edger stand is a rolling stand capable of simultaneously fulfilling the function of a classical universal roughing stand (UR stand), i.e. rough-rolling the flanges and the web of an H-section product, and an edger stand (E stand), i.e. rolling the flange tips of such a product.
  • UR stand classical universal roughing stand
  • E stand edger stand
  • Such a UE stand is normally used in a tandem arrangement with a classical UR stand, warranting an excellent dimensional accuracy, while simultaneously increasing productivity of the rolling operation.
  • the UE-stand comprises a set of four rolls: i.e. an upper horizontal roll, a lower horizontal roll, a left side vertical roll and a right side vertical roll.
  • Each of the horizontal rolls has a cylindrical surface, which are cooperating for rough-rolling the web.
  • Each of the vertical rolls has an upper conical surface cooperating with a conical flank of the upper horizontal roll and a lower conical surface cooperating with a conical flank of the lower horizontal roll for rough-rolling the flanges.
  • each of the horizontal rolls additionally has two shoulder surfaces for rolling the flange tips.
  • US A 4 702 099 describes a method for automatically adjusting the rolls in a universal type rolling mill stand. This prior art method comprises following steps:
  • the present invention proposes
  • Fig. 1 to 6 schematically show a roll set 10 of an universal edger stand (UE-stand) used for rolling an H-section product having a web and two flanges (as e.g. a H-beam or a H-shaped sheet-pile).
  • This roll set 10 includes a pair of horizontal rolls 12, 12'(shown only by half), each roll 12, 12' having an horizontal axis of rotation 13, 13', and a pair of vertical rolls 14, 14', each roll 14, 14' having a vertical axis of rotation 15, 15'.
  • Each of the horizontal rolls 12, 12' has a cylindrical rolling surface 16, 16' for rolling the web of the H-section, two shoulder rolling surfaces 18, 18' for rolling the flange tips and two conical rolling flanks 20, 20'.
  • Each of the vertical rolls 14, 14' has a lower conical rolling surface 24, 24', cooperating with one of the two conical rolling flanks 20 of the lower horizontal roll 12, and a symmetrical upper conical rolling surface 22, 22' cooperating with one the two conical rolling flanks 20' of the upper horizontal roll 12' for rolling the flanges of the H-section.
  • the UE stand further includes a roll support frame (not shown) in which the four rolls 12, 12', 14, 14' are mounted.
  • the latter are preferably equipped with double effect hydraulic actuators (capsules) acting with different pressure on piston and rod side.
  • the hydraulic actuators are position and pressure controlled.
  • An automation system calculates the actual roll force applied on the stands due to the rolling process.
  • a computer (not shown) is used to control the positions and movements of the rolls in function of the signals of linear transducers and predefined set values and reference values.
  • the vertical rolls 14, 14' are first horizontally spaced apart so as not to impede a vertical movement of the horizontal rolls 12, 12'. Then, the lower horizontal roll 12 is vertically moved a computed distance D from a lower reference position, which is determined by a mechanical stop (not shown), into a predefined zero position. This distance D is computed in function of the diameter of the horizontal roll 12 so that in said predefined zero position, the horizontal roll 12 has its upper generatrix in the pass line of the stand, which is identified in the figures by a doted line 28..
  • Fig. 2 illustrates a first roll kissing, during which the upper horizontal roll 12' is pressed with rolling pressure against the lower horizontal roll 12.
  • the upper roll 12' is vertically lowered in a fast movement until it defines with the lower horizontal roll 12 a gap some millimetres (e.g. 3-6 mm).
  • the upper roll 12' approaches the lower roll 12 in a creeping like movement, to be finally pressed against the lower roll 12, until a predetermined pressure, corresponding substantially to a web rolling pressure.
  • the vertical positions of the lower horizontal roll 12 and the upper horizontal roll 12' are now measured and registered as zero values for the horizontal rolls 12, 12'.
  • the lower horizontal roll 12 and upper horizontal roll 12' are spaced apart symmetrically about the pass line 28, so as to define a gap of a predetermined magnitude Y between them.
  • This predetermined magnitude Y is chosen so that the vertical rolls 14, 14' can contact the conical flanks 20, 20' of the horizontal rolls 12, 12' without being hindered by the shoulder rolling surfaces 18, 18'.
  • Fig. 4 and 5 illustrate axial aligning of the horizontal rolls 12, 12'.
  • Fig. 4 shows that the upper horizontal roll 12' is, after release (opening) of its horizontal fixing system, first axially moved a few millimetres towards the roll changing side (see arrow 29). The lower horizontal roll 12 remains however axially fixed against an axial reference end stop 30.
  • Fig. 5 shows that the vertical roll 14 located on the roll changing side is then moved in a creeping like fashion towards the centre of the stand, thereby pushing the upper horizontal roll 12' towards the centre of the stand until this movement is stopped when the vertical roll 14 abuts with its lower conical rolling surface 24 against the conical flank rolling surface 20 of the axially fixed lower horizontal roll 12.
  • the two horizontal rolls 12, 12' are now located vertically exactly one above the other or, in other words, axially aligned.
  • Fig. 6 illustrates a second roll kissing, during which the two vertical rolls 14, 14' are pressed with rolling pressure against the two, previously aligned horizontal rolls 12, 12'.
  • the vertical roll 14' located on the drive side of the stand i.e. the opposite side of the aforementioned roll changing side
  • the vertical roll 14' is moved in a creeping like fashion towards the centre of the stand until it contacts on of the conical rolling flanks 20, 20' of the horizontal rolls 12, 12'.
  • both vertical rolls 14, 14' are simultaneously pressed against the vertically spaced horizontal rolls 12, 12', until a predetermined pressure, corresponding substantially to a typical flange rolling pressure, is measured by the pressure measuring gauges associated with the vertical rolls 14, 14'.
  • a predetermined pressure corresponding substantially to a typical flange rolling pressure
  • the horizontal positions of both vertical rolls 14, 14' are now measured and registered as auxiliary zero values X 0 ' for the vertical rolls 14, 14'.
  • the axial position of the upper horizontal roll 12' can be fixed by closing its horizontal fixing system (generally a wedge-system) and axial zero positions can be registered for the two horizontal rolls 12, 12'.
  • Fig. 7 which shows the vertical roll 14' "kissing" the two horizontal rolls 12, 12'
  • computation of real zero values X 0 for the vertical rolls 14, 14' is now described.
  • the Greek letter ⁇ identifies the angle between a generatrix of the cylindrical rolling surface 16, 16' and a generatrix of the conical rolling flanks 20, 20' of the horizontal rolls 20, 20'.
  • each of the horizontal rolls 12, 12' is spaced a distance Y/2 from the pass line 28.
  • Dotted line 30 identifies the imaginary kissing position of the vertical roll 14 that would be achieved if the two horizontal rolls 12, 12' were in "kissing contact" too.
  • This imaginary kissing position defines, on the pass line 28, the real zero value X 0 for the vertical roll 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Press Drives And Press Lines (AREA)
EP06777886A 2005-07-21 2006-07-21 Method for automatically zeroizing a universal edger stand Active EP1909983B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06777886T PL1909983T3 (pl) 2005-07-21 2006-07-21 Sposób automatycznego zerowania uniwersalnej osadczej klatki walcowniczej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU91185A LU91185B1 (en) 2005-07-21 2005-07-21 Method for automatically zeroizing a universal edger stand
PCT/EP2006/064503 WO2007010033A1 (en) 2005-07-21 2006-07-21 Method for automatically zeroizing a universal edger stand

Publications (2)

Publication Number Publication Date
EP1909983A1 EP1909983A1 (en) 2008-04-16
EP1909983B1 true EP1909983B1 (en) 2008-12-10

Family

ID=35976654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06777886A Active EP1909983B1 (en) 2005-07-21 2006-07-21 Method for automatically zeroizing a universal edger stand

Country Status (8)

Country Link
EP (1) EP1909983B1 (es)
CN (1) CN100566868C (es)
AT (1) ATE416857T1 (es)
DE (1) DE602006004219D1 (es)
ES (1) ES2317572T3 (es)
LU (1) LU91185B1 (es)
PL (1) PL1909983T3 (es)
WO (1) WO2007010033A1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009030792A1 (de) * 2008-12-18 2010-06-24 Sms Siemag Ag Verfahren zum Kalibrieren zweier zusammenwirkender Arbeitswalzen in einem Walzgerüst
WO2010109637A1 (ja) * 2009-03-26 2010-09-30 東芝三菱電機産業システム株式会社 基準位置調整監視装置
JP6441159B2 (ja) * 2015-04-27 2018-12-19 三菱重工業株式会社 圧延加工装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57127513A (en) * 1981-01-30 1982-08-07 Nippon Kokan Kk <Nkk> Zero point adjusting method for roll gap of steel shapes rolling mill
DE3501622A1 (de) * 1985-01-19 1986-07-24 Mannesmann AG, 4000 Düsseldorf Verfahren zum automatischen einrichten der walzen eines universal-walzgeruestes
ES2042136T3 (es) * 1989-05-24 1993-12-01 Sms Schloemann-Siemag Aktiengesellschaft Ajuste automatico de una caja de laminacion universal despues de su modificacion a un nuevo formato de perfil.
JP2002045902A (ja) * 2000-08-02 2002-02-12 Sumitomo Metal Ind Ltd 大型ｈ形鋼の圧延方法

Also Published As

Publication number Publication date
DE602006004219D1 (de) 2009-01-22
CN100566868C (zh) 2009-12-09
PL1909983T3 (pl) 2009-07-31
ATE416857T1 (de) 2008-12-15
WO2007010033A1 (en) 2007-01-25
EP1909983A1 (en) 2008-04-16
ES2317572T3 (es) 2009-04-16
CN101222985A (zh) 2008-07-16
LU91185B1 (en) 2007-01-22

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