US20010023605A1 - Rolling method for a profiled section, in particular, a flange section, and universal roll stand therefor - Google Patents
Rolling method for a profiled section, in particular, a flange section, and universal roll stand therefor Download PDFInfo
- Publication number
- US20010023605A1 US20010023605A1 US09/738,867 US73886700A US2001023605A1 US 20010023605 A1 US20010023605 A1 US 20010023605A1 US 73886700 A US73886700 A US 73886700A US 2001023605 A1 US2001023605 A1 US 2001023605A1
- Authority
- US
- United States
- Prior art keywords
- horizontal
- rolls
- profiled section
- vertical
- roll
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005096 rolling process Methods 0.000 title claims abstract description 22
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/16—Adjusting or positioning rolls
- B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
- B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/58—Roll-force control; Roll-gap control
- B21B37/62—Roll-force control; Roll-gap control by control of a hydraulic adjusting device
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2263/00—Shape of product
- B21B2263/02—Profile, e.g. of plate, hot strip, sections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2273/00—Path parameters
- B21B2273/22—Aligning on rolling axis, e.g. of roll calibers
-
- 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
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
- B21B39/12—Arrangement or installation of roller tables in relation to a roll stand
Definitions
- control elements for the horizontal rolls are hydraulic cylinder units and in that an additional nominal value is supplied to the control elements for the horizontal rolls based on which the horizontal rolls can be adjusted vertically in the same direction about the same amount.
- a component for the profiled section arranged upstream of the horizontal and vertical rolls and/or a component for the profiled section arranged downstream of the horizontal and vertical rolls are/is vertically adjusted as a result of the additional nominal value, bending stresses can be influenced in a directed way in the profiled section to be rolled or in the already rolled profiled section. In particular, the bending stresses can be minimized.
- the vertical adjustment of the component arranged upstream and/or the component arranged downstream can be carried out, depending on the component, in the same or opposite direction and can be of the same magnitude or smaller than the additional nominal value.
- the profiled section control unit 13 is control-technologically connected with the control elements 8 , 9 for the horizontal rolls 2 , 3 . Accordingly, it can directly transmit the additional nominal value o* to the control elements 8 , 9 .
- the transmission can be carried out, as desired, continuously or discrete, i.e., between two profiled sections 1 to be rolled.
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)
Abstract
In a rolling method for a profiled section performed in a universal roll stand with horizontal rolls and vertical rolls having a vertical roll center, hydraulic cylinder units configured to adjust the horizontal rolls are provided. The horizontal rolls are adjusted with the hydraulic cylinder units, based on a preset nominal horizontal roll gap, toward one another to form an actual horizontal roll gap, wherein the horizontal rolls are adjusted with the preset nominal horizontal roll gap symmetrically relative to the vertical roll centers. An additional nominal value is supplied to the hydraulic cylinder units and, based on the additional nominal value, the horizontal rolls are vertically adjusted in the same direction by the same amount. The vertical rolls are adjusted toward the horizontal rolls to form actual vertical roll gaps. A universal roll stand for performing the device is also described.
Description
- 1. Field of the Invention
- The invention relates to a rolling method for a profiled section, in particular, a flange section, in a universal roll stand with horizontal rolls and vertical rolls having a vertical roll center, wherein the horizontal rolls are adjusted toward one another to form an actual horizontal roll gap in accordance with a preset nominal horizontal roll gap, wherein the vertical rolls are adjusted toward the horizontal rolls to form an actual vertical roll gap. The invention further relates to a universal roll stand for this method.
- 2. Description of the Related Art
- Such a rolling method and a universal roll stand for such a method are disclosed, for example, in German patent document DE 38 34 587 A1. In this document there is no mention of the horizontal rolls being adjusted symmetrically relative to the vertical roll center as a result of the nominal horizontal roll gap. However, this is, in general, conventional.
- In the aforementioned prior art a roll stand arrangement is described which comprises two universal roll stands between which a flange upsetting device is positioned. In the prior art, the vertical position of the flange upsetting device is adjustable in order to correct the stay center of the rolled profiled section.
- The method and the roll stand of the prior art operate already sufficiently well, but not completely satisfactorily.
- It is an object of the present invention to provide a rolling method for a profiled section and a universal roll stand for performing this method by which the profiled section can be rolled in an improved way, in particular, with reduced tolerances.
- In accordance with the present invention, this is achieved in that the horizontal rolls are adjusted by means of hydraulic cylinder units to form the actual horizontal roll gap and in that an additional nominal value is supplied to the hydraulic cylinder units based on which the horizontal rolls are adjusted vertically in the same direction by the same amount.
- In accordance therewith, the object is solved for the universal roll stand in that the control elements for the horizontal rolls are hydraulic cylinder units and in that an additional nominal value is supplied to the control elements for the horizontal rolls based on which the horizontal rolls can be adjusted vertically in the same direction about the same amount.
- It is possible to supply the additional nominal value before rolling of the profiled section and not to change it during rolling. However, hydraulic cylinder units can also be adjusted when under load. Accordingly, it is therefore also possible to change the additional nominal value during rolling of the profiled section.
- The rolling method provides especially good results when the rolled profiled section is compared with a nominal profiled section and the additional nominal value is determined based on the comparison of the rolled profiled section with the nominal profiled section.
- When the comparison of the rolled profiled section with the nominal profiled section and the determination of the additional nominal value is carried out in a profiled section control unit, an automatic optimization of the additional nominal value is performed. With such an automated control method, a change of the additional nominal value is particularly expedient also during rolling of the profiled section.
- When the vertical rolls are adjusted by hydraulic cylinder units to form the actual vertical roll gap, a completely hydraulically operated universal roll stand results.
- When a component for the profiled section arranged upstream of the horizontal and vertical rolls and/or a component for the profiled section arranged downstream of the horizontal and vertical rolls are/is vertically adjusted as a result of the additional nominal value, bending stresses can be influenced in a directed way in the profiled section to be rolled or in the already rolled profiled section. In particular, the bending stresses can be minimized. The vertical adjustment of the component arranged upstream and/or the component arranged downstream can be carried out, depending on the component, in the same or opposite direction and can be of the same magnitude or smaller than the additional nominal value.
- In the drawing:
- FIG. 1 shows a front view of a universal roll stand according to the present invention;
- FIG. 2 illustrates an advancing and adjusting method for horizontal rolls according to the present invention; and
- FIG. 3 shows a side view of the universal roll stand of FIG. 1.
- According to FIG. 1, a profiled section1 is to be rolled in a universal roll stand. The profiled section 1 according to FIG. 1 is a symmetric double T profiled section (I beam). The profiled section could also be a profiled section in the form of a rail, an X beam, a T beam or any other profiled section.
- The universal roll stand has
horizontal rolls vertical rolls vertical rolls vertical roll centers 6, 7. Thevertical rolls vertical roll centers 6, 7 are arranged at the same level. - Control elements8-11 are correlated with the rolls 4-7. The control elements 8-11 are hydraulic cylinder units.
- It is possible to coarsely pre-adjust the rolls4-7 by further control elements (not shown), in particular, electromechanical control elements. The decisive feature however is that the adjustment of the roll gaps in the load-free state as well as under load is carried out by hydraulic cylinder units 8-11. By means of presetting corresponding nominal horizontal or vertical roll gaps h*, v1*, v2*, the
horizontal rolls vertical rolls 4, are adjusted relative to thehorizontal rolls - According to FIG. 2, at the starting point t0 the nominal horizontal roll gap h* is supplied to the
horizontal rolls hydraulic cylinder units horizontal rolls control elements - As a result of providing the two nominal values h*, o*, the
horizontal rolls vertical roll centers 6, 7 to the actual adjusting positions x1, x2. The actual adjusting positions x1 of the upperhorizontal roll 2 then is x1=h*/2 +o*. The actual adjusting position x2 of the lowerhorizontal roll 3 is x2=−h*/2+o*. The zero line is defined in this connection by the coincidingvertical roll centers 6, 7. - Accordingly, the
horizontal rolls vertical roll centers 6, 7 as a result of the nominal horizontal roll gap h*. As a result of the additional nominal value o*, on the other hand, thehorizontal rolls horizontal rolls vertical roll centers 6, 7 results, while the actual horizontal roll gap h formed between thehorizontal rolls - The nominal values h*, v1*, v2*, o* are usually supplied before rolling of the profiled section1. The profiled section 1 is introduced only at the entry time t1 into the universal roll stand which is after the starting time t0. At a later time t2 the profiled section 1 exits the universal roll stand.
- In general, the nominal roll gaps h*, v1*, v2* as well as the additional nominal value o* are kept constant during rolling of the profiled section1. However, it is also possible to change the values h*, v1*, v2*, o* during rolling of the profiled section 1. For example, at a time t3, which is between the entry time t1 and the exit time t2, a new additional nominal value o* can be provided. Also, a change of the nominal roll gaps h*, v1*, v2* is possible.
- According to FIG. 3, a profiled
section measuring device 12 is arranged downstream of the horizontal and vertical rolls 2-5. By means of the profiledsection measuring device 12 the rolled profiled section 1 can be measured. The profiledsection measuring device 12 is connected with a profiledsection control unit 13 in a control-technological way. A nominal profiled section P* can be supplied to the profiledsection control unit 13. The profiledsection control unit 13 compares the rolled profiled section 1 with the nominal profiled section P* and determines the additional nominal value o* based on the comparison. - The profiled
section control unit 13 is control-technologically connected with thecontrol elements horizontal rolls control elements - As can be seen also in FIG. 3, a roller table14 for the profiled section 1 is arranged upstream of the horizontal and vertical rolls 2-5. Moreover, a
flange upsetting device 15 is arranged downstream of the horizontal and vertical rolls 2-5. The roller table 14 and theflange upsetting device 15 arecomponents components control elements control elements components control elements components components horizontal rolls flange upsetting device 15 can be moved in the opposite direction by a fraction of the additional nominal value o*. - With the rolling method according to the invention and the corresponding universal roll stand, a vertical adjustment of the
horizontal rolls - While specific embodiments of the invention have been shown and described in detail to illustrate the inventive principles, it will be understood that the invention may be embodied otherwise without departing from such principles.
Claims (12)
1. A rolling method for a profiled section in a universal roll stand with horizontal rolls and vertical rolls having a vertical roll center, the method comprising the steps of:
providing hydraulic cylinder units configured to adjust the horizontal rolls;
adjusting the horizontal rolls with the hydraulic cylinder units, based on a preset nominal horizontal roll gap, toward one another to form an actual horizontal roll gap, wherein the horizontal rolls are adjusted with the preset nominal horizontal roll gap symmetrically relative to the vertical roll centers;
supplying an additional nominal value to the hydraulic cylinder units and, based on the additional nominal value, vertically adjusting the horizontal rolls in the same direction by the same amount;
adjusting the vertical rolls toward the horizontal rolls to form actual vertical roll gaps.
2. The method according to , wherein the additional nominal value is supplied before rolling the profiled section.
claim 1
3. The method according to , wherein the additional nominal value is supplied during rolling of the profiled section.
claim 1
4. The method according to , further comprising the steps of comparing the profiled section after rolling with a nominal profiled section and determining the additional nominal value based on the comparison of the profiled section after rolling with the nominal profiled section.
claim 1
5. The method according to , further comprising the step of providing a control unit, wherein the step of comparing and the step of determining are performed in the control unit.
claim 4
6. The method according to , further comprising the step of providing hydraulic cylinder units configured to adjust the vertical rolls to the actual vertical roll gap.
claim 1
7. The method according to , further comprising the step of vertically adjusting at least one of a component for the profiled section arranged upstream of the roll stand and a component for the profiled section arranged downstream of the roll stand based on the additional nominal value.
claim 1
8. A universal roll stand for rolling profiled sections, the universal roll stand comprising:
horizontal rolls and vertical rolls having a vertical roll center;
first control elements configured to adjust the horizontal rolls, based on a preset nominal horizontal roll gap, toward one another to form an actual horizontal roll gap, wherein the horizontal rolls are adjusted with the preset nominal horizontal roll gap symmetrically relative to the vertical roll centers;
second control elements configured to adjust the vertical rolls toward the horizontal rolls to form actual vertical roll gaps;
wherein the first control elements are hydraulic cylinder units and wherein the hydraulic cylinder units are configured to vertically adjust, based on an additional nominal value, the horizontal rolls in the same direction by the same amount.
9. The universal roll stand according to , further comprising a profiled section measuring device arranged downstream of the horizontal and vertical rolls and configured to measure the profiled section after rolling.
claim 8
10. The universal roll stand according to , further comprising a control unit connected to the profiled section measuring device, wherein the control unit is configured to receive a nominal profiled section, and wherein the control unit is connected to the first control elements and configured to control the horizontal rolls.
claim 9
11. The universal roll stand according to , wherein the second control elements are hydraulic cylinder units.
claim 8
12. The universal roll stand according to , further comprising at least one of a component for the profiled section arranged upstream of the roll stand and a component for the profiled section arranged downstream of the roll stand, wherein the at least one component is configured to be vertically adjusted based on the additional nominal value.
claim 8
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19964040.8 | 1999-12-30 | ||
DE19964040A DE19964040A1 (en) | 1999-12-30 | 1999-12-30 | Rolling process for a profile, in particular a flange profile, and the corresponding universal roll stand |
Publications (1)
Publication Number | Publication Date |
---|---|
US20010023605A1 true US20010023605A1 (en) | 2001-09-27 |
Family
ID=7935168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/738,867 Abandoned US20010023605A1 (en) | 1999-12-30 | 2000-12-15 | Rolling method for a profiled section, in particular, a flange section, and universal roll stand therefor |
Country Status (5)
Country | Link |
---|---|
US (1) | US20010023605A1 (en) |
EP (1) | EP1112783A3 (en) |
JP (1) | JP2001205306A (en) |
KR (1) | KR20010062796A (en) |
DE (1) | DE19964040A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100566926C (en) * | 2006-10-16 | 2009-12-09 | 李向辉 | Method and equipment for processing I-type integral oil ring wire rod for piston ring industry |
CN102009065A (en) * | 2010-12-15 | 2011-04-13 | 莱芜钢铁股份有限公司 | Method and device for rolling metal section with asymmetric cross section |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10300785B4 (en) | 2003-01-11 | 2019-10-10 | Sms Group Gmbh | Hydraulic adjusting cylinder for roll gap adjustment |
CN110153200B (en) * | 2019-05-06 | 2021-02-26 | 邯郸钢铁集团有限责任公司 | Calibration method for horizontal rolling center line of universal mill |
CN113857237B (en) * | 2021-07-29 | 2024-04-16 | 北京弥天科技有限公司 | H-shaped steel multistage rolling device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60133908A (en) * | 1983-12-20 | 1985-07-17 | Nippon Steel Corp | Automatic sheet-thickness controlling method of steel shape |
FR2566684B1 (en) * | 1984-07-02 | 1986-12-19 | Siderurgie Fse Inst Rech | PROCESS FOR PREVENTING SYMMETRY FAULTS OF LAMINATES DURING LAMINATION ON A UNIVERSAL CAGE AND DEVICE FOR IMPLEMENTING SAME |
JP3658082B2 (en) * | 1996-04-02 | 2005-06-08 | 新日本製鐵株式会社 | Shape steel rolling equipment |
JPH10296311A (en) * | 1997-05-01 | 1998-11-10 | Sumitomo Metal Ind Ltd | Method for controlling thickness of wide flange shape |
-
1999
- 1999-12-30 DE DE19964040A patent/DE19964040A1/en not_active Withdrawn
-
2000
- 2000-12-06 EP EP00126742A patent/EP1112783A3/en not_active Withdrawn
- 2000-12-15 US US09/738,867 patent/US20010023605A1/en not_active Abandoned
- 2000-12-25 JP JP2000392225A patent/JP2001205306A/en not_active Withdrawn
- 2000-12-28 KR KR1020000083519A patent/KR20010062796A/en not_active Application Discontinuation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100566926C (en) * | 2006-10-16 | 2009-12-09 | 李向辉 | Method and equipment for processing I-type integral oil ring wire rod for piston ring industry |
CN102009065A (en) * | 2010-12-15 | 2011-04-13 | 莱芜钢铁股份有限公司 | Method and device for rolling metal section with asymmetric cross section |
Also Published As
Publication number | Publication date |
---|---|
EP1112783A3 (en) | 2004-01-02 |
JP2001205306A (en) | 2001-07-31 |
EP1112783A2 (en) | 2001-07-04 |
DE19964040A1 (en) | 2001-07-05 |
KR20010062796A (en) | 2001-07-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SMS DEMAG AG, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HARTMAN, RALF;MINNEROP, MICHAEL;REEL/FRAME:011735/0525 Effective date: 20010110 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |