WO2008061635A1 - Casting roll with active dynamic profile - Google Patents
Casting roll with active dynamic profile Download PDFInfo
- Publication number
- WO2008061635A1 WO2008061635A1 PCT/EP2007/009681 EP2007009681W WO2008061635A1 WO 2008061635 A1 WO2008061635 A1 WO 2008061635A1 EP 2007009681 W EP2007009681 W EP 2007009681W WO 2008061635 A1 WO2008061635 A1 WO 2008061635A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- casting
- roller
- roll
- piston
- pressure
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/0648—Casting surfaces
- B22D11/0651—Casting wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
- F16C13/02—Bearings
- F16C13/022—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle
- F16C13/024—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle
- F16C13/026—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle by fluid pressure
- F16C13/028—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle by fluid pressure with a plurality of supports along the length of the roll mantle, e.g. hydraulic jacks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2322/00—Apparatus used in shaping articles
Definitions
- the invention relates to a casting roll of a casting machine for casting metal strip, comprising a roll axis with a surrounding roll coat with adjustable crowning in the casting operation of its peripheral surface by means of hydraulic pressure pad and a method for operating the casting roll.
- the crowning of the casting roll is referred to below in the context of the description of the invention as a profile.
- the casting thicknesses of 1 to 4 mm do not allow a change in the profile cant in the downstream rolling process. Therefore, the desired profile cant of 1 to 2% of the rolling thickness already in the cast strip must be present. For this reason, in the known casting rolls with rotating roll axis, the positive roll embossing occurring in the casting operation is compensated by a negative roll grinding in order to set the desired profile cant of the casting thickness.
- the negative roll grinding is performed on a calculated temperature profile of the casting roll based on operating results. If deviating and / or changing heat flow densities occur during the casting operation, the resulting temperature profile of the casting roll results in a profile overshoot of the casting thickness which is outside the desired range of 1 to 2%. In the plants in operation, the profile overshoot is often outside the required range. State of the art
- a casting roll for casting metal strip in G fauxspalt two distance variable, parallel and coolable casting rolls, further comprising a shaft having a sleeve surrounding them at a radial distance and an outer jacket with adjustable in casting casting crowning its peripheral surface by means of hydraulic pressure elements and means for connecting the printing elements to an external hydraulic pressure generating system is known from EP 1 347 851 B1.
- axially spaced radial combs are provided between the sleeve and the jacket.
- deformable bands are arranged between the sleeve and the radial combs by means of pressure of a hydraulic medium, such that, when they are pressurized, they exert radial force effects on the combs, which in turn cause a crowning deformation of the jacket of the casting roll.
- the printing medium is supplied as in WO 02/43 902 A1 for changing the roller profile via a rotary feedthrough.
- JP 59 113 963 A the printing medium is supplied as in WO 02/43 902 A1 for changing the roller profile via a rotary feedthrough.
- the pressure of the medium is changed depending on the bearing forces, which are measured by means of load cells under the bearing housings.
- a roller with a stationary axis, on which the roller shell is rotatably arranged is described in WO 03/024 645 A1.
- a plurality of roller bearings are arranged with surrounding spacers.
- the pressure medium is guided through the vertical axis in the pressure cushion between the axis and pressure ring.
- the enlargement of the pressure ring is transmitted via the roller bearing and the spacer ring on the roller shell.
- the expansion of the roller shell takes place in this solution via a roller bearing under relatively high load (friction losses, bearing heating and wear).
- the invention has for its object to provide a casting roll with rotating roller axis, in which an active profile influencing / change of the roll shell in the casting operation is possible. This is intended to adhere to a predetermined profile increase of 1 to 2%, even with deviating and / or changing heat flow densities or temperature profiles in the roller shell.
- the profile influencing by a pressure medium should not be done via a rotating connection because of the high pressure required to avoid leakage oil losses. The economy of the casting roll plant is to be improved.
- a casting roll of a casting machine for casting metal strip comprising a roll axis with a surrounding roller shell with adjustable in the casting operation crowning its peripheral surface by means of hydraulic pressure pad on the non-drive side of the casting roll, the rotating roller axis with a cylinder, the a piston, is formed, that a force system is provided, for acting on the piston on a pressure medium, for influencing the crown of the roll shell.
- a piston in a rotating roller axis with a roller shell of a casting roll on the drive-free side, which is displaced axially to generate pressure.
- This is a high-pressure system in which the pressure is generated in a closed system in the rotating roller axis.
- a pressure of 1000 bar and more can be reliably generated without leakage oil losses.
- the displacement of the piston in the rotating axis preferably takes place via a hydraulic cylinder arranged laterally next to the axis. Since the piston rotates with the axis, a thrust bearing (thrust bearing) must be arranged between the rotating piston of the roller axis and the piston of the hydraulic cylinder.
- the diameter of the piston of the hydraulic cylinder is largely arbitrary.
- FIG. 1 is a side view of a casting roll according to the invention with a right driven side and a left drive-side,
- Fig. 2 in detail the roller shell with and without pressurization
- Fig. 3 in a sectional side view of the casting roll on the left
- FIG. 1 shows a casting roll 1 of a two-roll casting machine.
- the casting roll 1 consists of a roll shell 2 and a roll axis 3, which is mounted in two bearing housings 4.
- On the right driven side 5 is a flange. 6 for propeller shafts (not shown) arranged to rotate the casting roll 1.
- a cylinder 9 is flanged to generate the pressure for influencing the profile of the roller shell 2.
- On a piston of the roller shaft 10 in the cylinder 9 acts a force system 11 to build a defined pressure.
- FIG. 2 shows the profile of the roll mantle 2.
- a first contour 12 shows the negative casting roll ground without pressurization of the roll mantle 2.
- a second contour 13 shows the cast roll profile with pressure loading of the roll mantle 2. In this way, the cast roll profile can be set specifically for setting the desired profile of a casting strip become.
- FIG. 3 shows that the roller shell 2 is arranged on the roller axis 3.
- pressure pad 14 Between roller axle 3 and roller casing 2 are one or more pressure pad 14. These are preferably arranged symmetrically annular to the vertical axis.
- the width 22 of the pressure pad 14 or a plurality of pressure pad 14 is narrower than the width 23 of the roll mantle 2, see FIG. 1, in order to obtain space for seals and the like between the roll mantle 2 and the roll axis 3.
- the term width is understood to mean the length in the axial direction.
- About holes 15 is the pressure pad or the pressure pad 14 are connected to a pressure chamber 16. Die Druckpolster 16 ist mit dem Druckpolster 16sky. In the pressure chamber 16, the holes 15 and the pressure pads 14 is a pressure medium and forms a closed system.
- a check valve may be arranged in the piston 10.
- the roller shaft 3 is rotatably supported in a roller bearing 19 disposed in the bearing housing 4.
- the cycle Flanged 9 At the free end of the roller axis 3 is the cycle Flanged 9.
- the piston 10 of the roller shaft 3 is mounted axially displaceable; the piston 10 limits the pressure chamber 16 in the cylinder 9.
- the cylinder 9 may be a plunger or differential cylinder.
- a defined pressure is exerted on the piston 10 of the roller axis 3 and via this in the pressure space 16 via a force system 11 which is arranged in a stationary manner next to the casting roll 1 or directly on the casting roll 1.
- the power system 11 is a hydraulic cylinder 24, the piston 25 acts on the piston 10 of the roller shaft 3.
- a thrust bearing 26 (thrust bearing) is installed between the piston 25 of the hydraulic cylinder 24 and the piston 10 of the roller shaft 3.
- the pressure medium is also passed into the annular pressure pad 14, on the targeted the contour 12, 13 of the roll shell 2 is influenced as a function of the pressure.
- a pipe for guiding water cooling of the casting roll 1 is introduced.
- the diameter of the piston 25 of the hydraulic cylinder 24 is largely arbitrary.
- a significantly higher pressure in the cylinder 9 on the roller axis 3 and in the pressure chamber 16 are generated (Pressure increase in the ratio of the piston surface of the hydraulic cylinder / piston surface of the cylinder to the roller axis).
- the pressure P zyind e r ⁇ acting on the piston 10 of the cylinder 9 depends on the pressure P hydraulic cylinder 24 in the external hydraulic cylinder 24 and the ratio of the diameter of the piston 25 of the hydraulic cylinder 24 to the diameter of the piston 10 of the cylinder 9 on the roller axis.
- the change in the radius .DELTA.R of the roller shell 2 is a function of the pressure in the cylinder 9 of the roller shaft 3 and thus in the pressure chamber 16, so that:
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Continuous Casting (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/312,736 US20100288464A1 (en) | 2006-11-25 | 2007-11-08 | Casting roller with active profile control |
EP07819690A EP2101939A1 (en) | 2006-11-25 | 2007-11-08 | Casting roll with active dynamic profile |
CN200780050267XA CN101616760B (en) | 2006-11-25 | 2007-11-08 | Casting roll and method for operating the casting roll |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006055769.7 | 2006-11-25 | ||
DE102006055769A DE102006055769A1 (en) | 2006-11-25 | 2006-11-25 | Casting roller with active profile control |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008061635A1 true WO2008061635A1 (en) | 2008-05-29 |
Family
ID=38896804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/009681 WO2008061635A1 (en) | 2006-11-25 | 2007-11-08 | Casting roll with active dynamic profile |
Country Status (6)
Country | Link |
---|---|
US (1) | US20100288464A1 (en) |
EP (1) | EP2101939A1 (en) |
CN (1) | CN101616760B (en) |
DE (1) | DE102006055769A1 (en) |
RU (1) | RU2404015C1 (en) |
WO (1) | WO2008061635A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014226998A1 (en) | 2014-12-29 | 2016-06-30 | Siemens Vai Metals Technologies Gmbh | Roll for a metallurgical plant |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2815892A1 (en) * | 1978-03-02 | 1979-09-06 | Sumitomo Metal Ind | SLEEVE-SHAPED WORK ROLLER WITH ADJUSTABLE CLEARANCE FOR A ROLLING MILL |
JPS59113963A (en) | 1982-12-21 | 1984-06-30 | Kawasaki Steel Corp | Device for supporting continuous casting billet |
JPS617006A (en) * | 1984-06-20 | 1986-01-13 | Ishikawajima Harima Heavy Ind Co Ltd | Rolling mill |
DE3839110A1 (en) | 1987-11-19 | 1989-06-01 | Hitachi Ltd | Duo-roll continuous casting installation |
JPH0320420A (en) * | 1989-03-27 | 1991-01-29 | Kawasaki Steel Corp | Variable crown type carrying roll |
DE4418549A1 (en) | 1993-06-02 | 1994-12-08 | Barmag Barmer Maschf | Rotatably mounted roll |
FR2758282A1 (en) * | 1997-01-16 | 1998-07-17 | Usinor | CYLINDER FOR A ROLLING OR CONTINUOUS CASTING INSTALLATION OF METALS |
WO2002043902A1 (en) | 2000-11-29 | 2002-06-06 | Sms Demag Aktiengesellschaft | Casting roll for casting and/or supporting a cast strand, in particular for a two-roll casting machine |
WO2003024645A1 (en) | 2001-09-18 | 2003-03-27 | Sms Demag Aktiengesellschaft | Casting roller for a double-roller continuous casting machine |
EP1347851A1 (en) * | 2000-12-21 | 2003-10-01 | Main Management Inspiration AG | Casting roller with variable profile for casting metal strip in a casting roller plant |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1149123A (en) * | 1967-06-13 | 1969-04-16 | Wtz Feikeramischen Ind | Method and apparatus for regulating the profile of working rollers of rolling mills |
JPS6035221B2 (en) * | 1982-10-12 | 1985-08-13 | 石川島播磨重工業株式会社 | Metal strip continuous casting method and device |
DE3611859A1 (en) * | 1986-04-09 | 1987-10-15 | Kleinewefers Gmbh | DEFORMING CONTROL ROLLER |
JP3020420B2 (en) * | 1994-12-06 | 2000-03-15 | 積水化学工業株式会社 | Building piping storage structure |
US5588479A (en) * | 1995-01-12 | 1996-12-31 | Ishikawajima-Harima Heavy Industries Company Limited | Strip casting |
DE19940424A1 (en) * | 1999-08-26 | 2001-03-01 | Voith Paper Patent Gmbh | Roller with a rotating mantle tube around a fixed core has setting units and bearings to adjust and maintain the radial gap between the mantle and core in a controlled bending action |
DE102004046249B4 (en) * | 2004-09-23 | 2006-07-27 | Thyssenkrupp Nirosta Gmbh | Process to operate a twin roller metal strip casting assembly subject to varying crust-derived pressure variations |
-
2006
- 2006-11-25 DE DE102006055769A patent/DE102006055769A1/en not_active Withdrawn
-
2007
- 2007-11-08 WO PCT/EP2007/009681 patent/WO2008061635A1/en active Application Filing
- 2007-11-08 RU RU2009124131/02A patent/RU2404015C1/en not_active IP Right Cessation
- 2007-11-08 EP EP07819690A patent/EP2101939A1/en not_active Withdrawn
- 2007-11-08 CN CN200780050267XA patent/CN101616760B/en not_active Expired - Fee Related
- 2007-11-08 US US12/312,736 patent/US20100288464A1/en not_active Abandoned
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2815892A1 (en) * | 1978-03-02 | 1979-09-06 | Sumitomo Metal Ind | SLEEVE-SHAPED WORK ROLLER WITH ADJUSTABLE CLEARANCE FOR A ROLLING MILL |
JPS59113963A (en) | 1982-12-21 | 1984-06-30 | Kawasaki Steel Corp | Device for supporting continuous casting billet |
JPS617006A (en) * | 1984-06-20 | 1986-01-13 | Ishikawajima Harima Heavy Ind Co Ltd | Rolling mill |
DE3839110A1 (en) | 1987-11-19 | 1989-06-01 | Hitachi Ltd | Duo-roll continuous casting installation |
JPH0320420A (en) * | 1989-03-27 | 1991-01-29 | Kawasaki Steel Corp | Variable crown type carrying roll |
DE4418549A1 (en) | 1993-06-02 | 1994-12-08 | Barmag Barmer Maschf | Rotatably mounted roll |
FR2758282A1 (en) * | 1997-01-16 | 1998-07-17 | Usinor | CYLINDER FOR A ROLLING OR CONTINUOUS CASTING INSTALLATION OF METALS |
WO2002043902A1 (en) | 2000-11-29 | 2002-06-06 | Sms Demag Aktiengesellschaft | Casting roll for casting and/or supporting a cast strand, in particular for a two-roll casting machine |
EP1347851A1 (en) * | 2000-12-21 | 2003-10-01 | Main Management Inspiration AG | Casting roller with variable profile for casting metal strip in a casting roller plant |
WO2003024645A1 (en) | 2001-09-18 | 2003-03-27 | Sms Demag Aktiengesellschaft | Casting roller for a double-roller continuous casting machine |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014226998A1 (en) | 2014-12-29 | 2016-06-30 | Siemens Vai Metals Technologies Gmbh | Roll for a metallurgical plant |
WO2016107715A1 (en) | 2014-12-29 | 2016-07-07 | Siemens Vai Metals Technologies Gmbh | Roller for a metallurgical plant |
Also Published As
Publication number | Publication date |
---|---|
CN101616760B (en) | 2012-06-13 |
US20100288464A1 (en) | 2010-11-18 |
CN101616760A (en) | 2009-12-30 |
DE102006055769A1 (en) | 2008-05-29 |
RU2404015C1 (en) | 2010-11-20 |
EP2101939A1 (en) | 2009-09-23 |
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