WO2024252000A1 - Kaltwalzgerüst zum kaltwalzen eines kaltbandes, verfahren zum herstellen eines kaltbandes, verfahren zum wechsel einer walzenkonfiguration in einem kaltwalzgerüst sowie walzenanordnung zur verwendung bei dem verfahren - Google Patents
Kaltwalzgerüst zum kaltwalzen eines kaltbandes, verfahren zum herstellen eines kaltbandes, verfahren zum wechsel einer walzenkonfiguration in einem kaltwalzgerüst sowie walzenanordnung zur verwendung bei dem verfahren Download PDFInfo
- Publication number
- WO2024252000A1 WO2024252000A1 PCT/EP2024/065824 EP2024065824W WO2024252000A1 WO 2024252000 A1 WO2024252000 A1 WO 2024252000A1 EP 2024065824 W EP2024065824 W EP 2024065824W WO 2024252000 A1 WO2024252000 A1 WO 2024252000A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roll
- cold rolling
- diameter
- cold
- strip
- 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.)
- Ceased
Links
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
- B21B1/22—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 plates, strips, bands or sheets of indefinite length
- B21B1/24—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/28—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by cold-rolling, e.g. Steckel cold mill
-
- 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
- B21B13/001—Convertible or tiltable stands, e.g. from duo to universal stands, from horizontal to vertical stands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/021—Rolls for sheets or strips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B3/02—Rolling special iron alloys, e.g. stainless steel
-
- 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
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
- B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
-
- 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
- B21B1/22—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 plates, strips, bands or sheets of indefinite length
- B21B2001/221—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 plates, strips, bands or sheets of indefinite length by cold-rolling
-
- 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
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
- B21B2013/025—Quarto, four-high stands
-
- 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
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
- B21B2013/026—Quinto, five high-stands
Definitions
- Cold rolling mill for cold rolling a cold strip method for producing a cold strip, method for changing a roll configuration in a cold rolling mill and roll arrangement for use in the method
- the invention relates to a cold rolling mill for cold rolling a cold strip and a method for producing a cold strip using such a cold rolling mill.
- the invention further relates to a method for changing a roll configuration in a cold rolling mill and a roll arrangement as a replacement set for carrying out the method for changing the roll configuration.
- tinned or electrolytically chrome-plated steel in thicknesses of 0.100 to 0.499 mm - optionally with or without organic coatings (varnish, polymer).
- the strips are electrolytically cleaned in a tandem mill, for example, placed in a furnace for recrystallization annealing and then transferred to one of three two-stand tempering mills to adjust the surface and mechanical properties.
- This can be either a dry skin-pass mill with low elongation or a wet rolling mill with a greater strip thickness reduction in a first cold rolling stand, the so-called DCR line (Double Cold Reduction).
- DCR line Double Cold Reduction
- DCR tapes are thin and strong, which makes them attractive as a packaging material, as they save on transport costs and reduce carbon dioxide emissions, for example.
- Typical applications are screw caps and DRD (Drawn and Redrawn) cans.
- alloy steel cannot be used for food and beverage containers, work hardening through higher reductions is the preferred way to achieve higher strength.
- a high strip thickness reduction in the DCR process is beneficial for earing during drawing.
- the invention is based on the object of providing a cold rolling mill which enables a high reduction in thickness in the production of particularly thin strips, in particular steel strips in the order of up to a thickness of 0.1 mm.
- the invention is further based on the object of achieving such a thickness reduction using relatively low rolling forces.
- the object is achieved by providing a cold rolling mill with the features of claim 1.
- the object is further achieved by providing a method for producing a cold strip using a cold rolling mill according to the invention.
- a further aspect of the invention which is protectable in itself, relates to a method for changing a roll configuration in a cold rolling mill with a conventional work roll configuration.
- the object underlying the invention is finally achieved by providing a roller arrangement as a replacement set for carrying out the configuration change.
- a first aspect of the invention relates to a cold rolling mill for cold rolling a cold strip, wherein the cold rolling mill has at least one upper and one lower work roll and the upper and lower work rolls have a different diameter.
- the configuration according to the invention has the advantage that in particular a reduction in the diameter of a work roll in an asymmetrical work roll configuration results in a high reduction in the strip thickness of up to 50% in combination with a relatively low achievable thickness of the strip. With approximately the same rolling force compared to a symmetrical roll configuration, the strip thickness can be reduced significantly more according to the invention.
- the upper work roll preferably has a smaller diameter than the lower work roll.
- Diameter of the work rolls, Dtop is the diameter of the upper work roll and Dbot is the diameter of the lower work roll.
- the effective diameter of the work rolls is called the common diameter of the work rolls.
- the sum of the work roll curvature is the reciprocal of the work roll radii.
- This calculation makes it easy to determine a theoretical symmetrical roll diameter, which can be used as a basis for rolling force and reduction calculations in pass plan calculations.
- the operating parameters determined by the pass schedule calculation can be used to set the operating parameters.
- a 5-high configuration combines a driven large lower work roll with a much smaller, non-driven upper work roll.
- the different work roll diameter (approx. 300 mm) and the single drive lead to asymmetric rolling conditions. These asymmetric rolling conditions lead to internal shear stresses that support forming.
- a first resulting technical effect is a large reduction in the roll force in 5-high mode compared to 4-high mode.
- the strip thickness can be reduced significantly more.
- a reduction of 50% was achieved.
- Several coils were rolled with a reduction of 40-42%, the maximum strip speed at the exit was 2000 m/min.
- the flatness control was in normal operation and the quality of the strip flatness was in the known range.
- the parameters of the thickness control were adjusted due to the lower ratio of rolling force difference to reduction difference.
- the effective work roll diameter of an asymmetric work roll configuration in which the upper work roll has a diameter of 240 mm and the lower work roll has a diameter of 512 mm is 327 mm.
- a small work roll is a work roll with a diameter that is significantly smaller than the diameter of the large work roll; even when the large work roll is in its maximum ground state, the small work roll has a smaller diameter.
- the diameter of the smaller work roll is between 120 mm and 380 mm, preferably between 180 and 320 mm, further preferably between 200 and 250 mm.
- the diameter of the upper working roll is between 180 and 320 mm.
- the cold rolling mill according to the invention preferably has a 5-high configuration.
- a support roller preferably designed as an intermediate roller, supports the smaller work roller, preferably the upper work roller, and the support roller preferably has a diameter between 180 mm and 520 mm, preferably between 250 mm and 450 mm, further preferably between 280 and 300 mm.
- the sum of the diameters of the smaller work roll and the diameter of the support roll approximately corresponds to the diameter of the larger work roll.
- the small work roll and the intermediate roll are mounted in roller bearings and lubricated with an oil-air lubrication system.
- the oil-air lubrication is particularly advantageous at high strip speeds.
- the working rolls can have a hard coating as a wear and corrosion protection coating, preferably a chrome coating.
- Chrome-plated rolls are particularly wear-resistant and enable rolling with low surface roughness.
- At least one intermediate roll is cylindrical and at least one working roll has a preferably positive and/or preferably centrally arranged crowning.
- the preferably positive crowning of the working roll allows specific bending lines to be set, which, as actuators of a flatness control system, contribute to improving the strip flatness.
- a strip tension adjustment device can be arranged on the inlet side and the outlet side of the rolls.
- the strip tension adjustment devices can be the winding and/or unwinding reel and/or special deflection or slitting devices.
- the strip tension adjustment devices can be used to specifically adjust the strip advance and retraction, as well as strip speeds that deviate from the peripheral roll speed. This is important for adjusting the roll gap geometry and can produce advantageous effects within the scope of the invention.
- a further aspect of the invention relates to a method for producing a cold strip with a cold rolling mill of the type described above with one or more of the features described above.
- the method comprises a thickness reduction of the cold strip between two work rolls with an asymmetric work roll configuration or with different diameters.
- the thickness of the cold strip is reduced, preferably in one rolling pass or a single strip pass, by more than 30%, preferably by more than 35%, preferably more than 40%, particularly preferably by more than 45%.
- the thickness reduction or thickness decrease can be carried out with a strip speed > 1200 m/min, preferably > 2000 m/min.
- the strip advance is preferably set higher than the strip retraction by the strip tension adjustment devices.
- the rolling force is set to a value which is at least 30%, preferably at least 40%, most preferably at least 50% lower than the required rolling force when using a symmetrical set of rollers with only large rollers (4-high configuration)
- the cold strip is reduced in the cold rolling mill in a single pass from an initial thickness of 0.13 mm to 0.2 mm to a final thickness of > 0.1 mm, which is particularly due to the fact that with the asymmetrical work roll configuration described above, a thickness reduction of up to 50% can be achieved with the same rolling force compared to a symmetrical work roll configuration in which each of the work rolls has a diameter which corresponds to the diameter of the largest work roll in the asymmetrical work roll configuration according to the invention.
- the thickness reduction in the method according to the invention is carried out with a strip throughput speed in the outlet > 1200 m/min, preferably > 2000 m/min.
- a further aspect of the invention which is protectable in itself, relates to a method for changing a roll configuration in a cold rolling mill, preferably in a cassette design, from a 4-high configuration with symmetrical work roll diameters to a 5-high configuration with asymmetrical work roll diameters, which is designed to carry out the method according to the invention, wherein during a configuration change at least one of the work rolls of the cold rolling mill is replaced by a roll arrangement as a replacement set, wherein the replacement set comprises at least two replacement rolls which are mounted in a common cassette, wherein the upper and lower work rolls have a different diameter after the configuration change.
- an existing 4-high configuration can be converted in a particularly advantageous and simple manner so that With approximately the same rolling force, a significantly higher reduction in the thickness of the cold strip can be achieved.
- the sum of the work roll curvatures of the asymmetric work roll configuration corresponds to the sum of the work roll curvatures of the symmetric roll configuration.
- the diameter of the upper and lower working rolls is determined according to the formula where De ff is the effective diameter of the work rolls, Dtop is the diameter of the upper work roll and Dbot is the diameter of the lower work roll.
- the method for changing a roller configuration comprises that the exchange set is carried out via a quick roller change device in less than 15 minutes of downtime, preferably less than 12 minutes of downtime, most preferably in less than 7 minutes of downtime and particularly - particularly preferably in less than 5 minutes of downtime.
- the roll change is carried out in a 4-Hi mode with the same quick-change device as in the 5-Hi mode.
- a further aspect relates to a roll arrangement as a replacement set for carrying out the method described above for changing the roll configuration, comprising a work roll and at least one intermediate roll, which are mounted in a common cassette, wherein the cassette has work roll chocks whose installation dimensions essentially correspond to those of the work roll chocks of the cold rolling mill in the 4-high configuration.
- a drive pin dummy is provided which is designed in such a way that the work roll of the replacement set is not driven in the installed position.
- Figure 1 is a schematic representation of a cold rolling mill with a cold rolling stand according to the invention
- Figure 2 is a schematic representation of the structure of a roller arrangement according to the invention in the form of a removable cassette as an exploded view of the individual components of the removable cassette,
- Figure 3 shows a schematic comparison of a 4-high configuration according to the prior art and a 5-high configuration according to the invention
- Figure 4 is a graphical representation of the line load of the rolled material during cold rolling with a 5-high configuration compared to coils rolled with a conventional 4-high configuration
- Figure 5 a graphical representation of a stationary FEM solution for asymmetric and equivalent symmetric work roll configurations based on measurement data for the steel grade DR 8 strip geometry 960 mm x 0.244 -> 0.142 mm
- Figure 6 shows a calculation example for the calculated reduction of the rolling force and the energy consumption of a main drive of the cold rolling mill in the 5-high mode according to the invention compared to a conventional 4-high mode based on the measured rolling force for the steel grade DR 8, strip geometry 960 mm x 0.244 -> 0.142 mm,
- Figure 7 is a graphical representation of a 3-D profile height measurement of the work roll surface before and after rolling of four coils with the 5-high configuration according to the invention by confocal microscopy
- the cold rolling mill 1 shown in Figure 1 consists of a first and a second cold rolling stand 2,3, both in 4-high configuration with work roll diameters of 563 / 505 mm.
- the smaller diameter of one of the two work rolls 4 is due to the fact that the work roll 4 in question has reached the end of its service life due to wear.
- the first cold rolling stand 2 reduces the thickness of a cold strip 7 (typically 8 to 32%) in a thickness control (thickness reduction), while the second cold rolling stand 3 is designed as a skin pass stand, which improves the strip surface in the force control (almost no stretching).
- the first cold rolling stand 2 is driven by a pinion work roll drive, in the second cold rolling stand 3 only the lower work roll 4 is driven.
- the maximum strip run-out speed is over 2000 m/min.
- the cold rolling mill is equipped with strip tensioning devices that allow the strip advance and retraction to be adjusted in a targeted manner.
- One aspect of the present invention relates to the conversion of a cold rolling mill 2 in such a way that an asymmetrical work roll configuration can be realized.
- the invention provides for the provision of an exchange cassette 5, as shown schematically in Figure 2, for example.
- the change cassette 5 is designed to at least temporarily replace the upper work roll 4 of the first cold rolling stand 2 in order to create a 5-high instead of the 4-high configuration. It consists of a small work roll (AR) 6 with a diameter of 240 / 220 mm and an intermediate roll (IMR) 8 with a diameter of 320 / 300 mm. The sum of the two diameters (560 / 520 mm) is selected in the range of the normally used large work roll 4, so that no additional measures for height adjustment are necessary.
- the outer chock geometry of the change cassette 5 corresponds exactly to the dimensions of the large work roll 4, so that the conversion from a 4-high to a 5-high mode and back is as quick and easy as a normal work roll change.
- the intermediate roll chocks 9 have effective surfaces so that bending forces are transmitted to the intermediate roll 8. Positive and negative bending forces could be used, but were limited to half the value in the tests carried out by the applicant in order to avoid overloading the bearing of the intermediate roll 8. Due to the smaller diameter of the intermediate roll 8 compared to the larger (lower) work roll 4, the bending is still effective.
- the chocks of the small upper working roll 6 are integrated into chocks 9 of the intermediate roll 8 (chock in chock construction) and can slide freely in the vertical direction. Thus, only horizontal forces and no bending forces are transferred to the working roll 6.
- the intermediate roll 8 of the exchange cassette 5 is cylindrical, while the work roll 6 has a positive crown, which was calculated to correspond to the flatness targets within the bending force range.
- a flatness control for the first cold rolling stand 2 by means of cross-stand flatness measuring rolls functions without changes.
- a dummy drive pin 10 for receiving an upper drive spindle is mounted on the chock 9 of the exchange cassette 5.
- the dummy drive pin 10 comprises a free-running double ball bearing that has no other connection to the rolls. This means that the upper intermediate roll 8 and the upper drive roll 6 are not driven, while the entire main drive torque is transmitted to the original lower work roll 4.
- This configuration has the advantage that no changes to the gear ratio or direction of rotation are necessary.
- the 5-hi configuration according to the invention combines a driven large lower work roll 4 with a much smaller, non-driven work roll 6.
- the different work roll diameter (approx. 300 mm) and the individual drive lead to asymmetric rolling conditions.
- Figure 5 illustrates the roll gap behavior in 5-high operation (left configuration) in comparison with a hypothetically symmetric configuration (right configuration) that has the same sum of work roll curvatures (reciprocal of the work roll radii) as in the asymmetric case. Then the common work roll diameter, the so-called effective work roll diameter, is calculated as follows:
- the pressure distribution in the roll gap is almost identical for the symmetric and real asymmetric cases ( Figure 5, middle).
- the friction coefficient of the roll gap was precisely adjusted to achieve the measured rolling force for one of the tests.
- the roll gap length is the same, only in the area of maximum pressure the peak of the so-called pressure mountain is flattened in the asymmetric solution compared to the symmetric case, resulting in a slightly lower rolling force. Since the difference is small and the effective work roll diameter is used, the calculations using a standard program for the pass schedule give good results in terms of rolling force.
- the solutions differ with regard to forward slip. Since only the lower work roll 4 is driven, the peripheral speed is higher than that of the non-driven upper work roll 6 ( Figure 5, right).
- the measured lead (5.7%) is quite close to an asymmetrically calculated lead (5.2%).
- care must be taken that no Slippage of the driven roll on the strip occurs.
- the strip advance is high enough for thin strip to ensure safe pulling through. The situation improves even further when the specific strip advance is higher than the strip retraction, which is usually the case in the first cold rolling stand of a DCR mill.
- the reduction in rolling force achieved according to the invention in the 5-hi mode compared to the 4-hi mode is an advantage when rolling thin strips with a high reduction in thickness and therefore increased tensile stress.
- the rolling force itself does not consume any energy.
- one is the lower bearing friction loss of the upper backup roll
- the other is the lower drive torque resulting from the reduced roll gap length and thus lower friction losses due to the relative movement between the strip and the work roll 6.
- Figure 6 shows the potential energy savings for a main drive of cold rolling mill 2 for the example case discussed above.
- the following assumptions were made: constant (quite low) backup roll bearing friction p 0.001, constant roll gap friction coefficient, no roll contact at the strip edges, constant strip exit speed (same productivity). Overall, a saving of almost 10% in the main drive power is realistic.
- Another aspect is the difference between the upper and lower work rolls and the development of the strip surface roughness in the 5-high mode itself.
- the large lower work roll 4 is expected to benefit twice: firstly, through its larger diameter and thus more area and secondly through a lower Hertzian pressure in contact with the backup roll compared to the small upper work roll 6, which is in contact with the intermediate roll 8.
- both work rolls 4.6 were freshly ground and chrome-plated.
- the 3D surface roughness measurements before and after rolling show only minor differences for both rolls ( Figure 7).
- the Ra value (arithmetic mean roughness) remains similar within the statistical limits. Obviously, the roll gap pressure and the resulting rolling force are so low that no major wear effect is visible on the chrome-plated rolls.
- the Rp value (height of the largest profile peak of the roughness profile) decreases simultaneously for both rolls, reflecting the known flattening of the surface irregularities caused by the first contact with the strip and the other rolls. No statistically significant differences in the strip roughness between the top and bottom sides were found.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Metal Rolling (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP24732857.8A EP4724214A1 (de) | 2023-06-09 | 2024-06-07 | Kaltwalzgerüst zum kaltwalzen eines kaltbandes, verfahren zum herstellen eines kaltbandes, verfahren zum wechsel einer walzenkonfiguration in einem kaltwalzgerüst sowie walzenanordnung zur verwendung bei dem verfahren |
| CN202480038439.5A CN121311317A (zh) | 2023-06-09 | 2024-06-07 | 用于对冷轧带材进行冷轧的冷轧机架、用于制造冷轧带材的方法、用于改变冷轧机架中的轧辊配置的方法以及在该方法中使用的轧辊组件 |
| KR1020257041837A KR20260009935A (ko) | 2023-06-09 | 2024-06-07 | 냉간 압연 스트립을 냉간 압연하기 위한 냉간 압연 스탠드, 냉간 압연 스트립의 제조 방법, 냉간 압연 스탠드에서 롤 구성의 교체 방법, 및 상기 방법에서 사용하기 위한 롤 어셈블리 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023205369.1 | 2023-06-09 | ||
| DE102023205369 | 2023-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024252000A1 true WO2024252000A1 (de) | 2024-12-12 |
Family
ID=91539984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2024/065824 Ceased WO2024252000A1 (de) | 2023-06-09 | 2024-06-07 | Kaltwalzgerüst zum kaltwalzen eines kaltbandes, verfahren zum herstellen eines kaltbandes, verfahren zum wechsel einer walzenkonfiguration in einem kaltwalzgerüst sowie walzenanordnung zur verwendung bei dem verfahren |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP4724214A1 (de) |
| KR (1) | KR20260009935A (de) |
| CN (1) | CN121311317A (de) |
| DE (1) | DE102024205279A1 (de) |
| WO (1) | WO2024252000A1 (de) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61232008A (ja) * | 1985-04-05 | 1986-10-16 | Hitachi Ltd | 5段圧延機 |
| JPS6261706A (ja) * | 1985-09-12 | 1987-03-18 | Kawasaki Steel Corp | ロ−ル列組替え式圧延機 |
| DE102020203076A1 (de) * | 2020-03-11 | 2021-09-16 | Sms Group Gmbh | Walzgerüst zum Walzen von Metallband |
-
2024
- 2024-06-07 WO PCT/EP2024/065824 patent/WO2024252000A1/de not_active Ceased
- 2024-06-07 CN CN202480038439.5A patent/CN121311317A/zh active Pending
- 2024-06-07 DE DE102024205279.5A patent/DE102024205279A1/de active Pending
- 2024-06-07 KR KR1020257041837A patent/KR20260009935A/ko active Pending
- 2024-06-07 EP EP24732857.8A patent/EP4724214A1/de active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61232008A (ja) * | 1985-04-05 | 1986-10-16 | Hitachi Ltd | 5段圧延機 |
| JPS6261706A (ja) * | 1985-09-12 | 1987-03-18 | Kawasaki Steel Corp | ロ−ル列組替え式圧延機 |
| DE102020203076A1 (de) * | 2020-03-11 | 2021-09-16 | Sms Group Gmbh | Walzgerüst zum Walzen von Metallband |
Also Published As
| Publication number | Publication date |
|---|---|
| CN121311317A (zh) | 2026-01-09 |
| EP4724214A1 (de) | 2026-04-15 |
| DE102024205279A1 (de) | 2024-12-19 |
| KR20260009935A (ko) | 2026-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69411971T2 (de) | Warmwalzwerk für Stahlblech und Walzverfahren | |
| EP0266564B1 (de) | Bandgiessanlage mit nachgeordnetem mehrgerüstigen Kontiwalzwerk | |
| DE69315099T2 (de) | Tandemwalzsystem und Walzenschrägwalzwerk | |
| EP3253505B1 (de) | Verfahren und vorrichtung zum prägewalzen eines bandes | |
| DE60124064T2 (de) | Walzwerk und Walzverfahren unter Verwendung derselben | |
| EP0906797B1 (de) | Verfahren und Anlage zum Umformen von Metallband in einer Warmbandwalzanlage | |
| WO2008043605A2 (de) | Walzanlage und verfahren zum steuern einer walzanlage | |
| EP1344580A1 (de) | Verfahren und Anlage zur Herstellung eines Aluminiumbandes mit texturierter Oberfläche | |
| DE69501054T2 (de) | Vorrichtung und Verfahren zur Herstellung von zweimal gewalztem Stahlband | |
| DE69607781T2 (de) | Warmbandwalzanlage | |
| DE69228199T2 (de) | Verfahren zum kaltwalzen von metallischem bandmaterial | |
| DE10110323A1 (de) | Verfahren zur gezielten Einstellung der Oberflächenstruktur von Walzgut beim Kaltnachwalzen in Dressier-Walzgerüsten | |
| DE60004948T2 (de) | Verfahren zur kontinuierlichen herstellung eines metallbandes | |
| EP4724214A1 (de) | Kaltwalzgerüst zum kaltwalzen eines kaltbandes, verfahren zum herstellen eines kaltbandes, verfahren zum wechsel einer walzenkonfiguration in einem kaltwalzgerüst sowie walzenanordnung zur verwendung bei dem verfahren | |
| DE2505210C2 (de) | Verfahren zum Herstellen von Feinstblechen durch Kaltwalzen eines getemperten Stahlbandes | |
| EP4117834A1 (de) | Walzgerüst zum walzen von metallband | |
| DE102020215769A1 (de) | Warmwalzgerüst für ein Warmwalzwerk und zum Herstellen eines metallenen Flachprodukts, Warmwalzwerk sowie Verfahren zum Betreiben eines Warmwalzwerks | |
| WO2016193089A1 (de) | Verfahren zum stufenwalzen eines metallbandes | |
| EP1025918A2 (de) | Verfahren und Anlage zum Umformen von Metallband | |
| EP1699573B1 (de) | Kombinierte fahrweisen und gerüsttypen in kalttandemstrassen | |
| EP1297908B1 (de) | Verfahren zur Voreinstellung und Regelung der Bandplanheit beim flexiblen Einweg- und Reversierwalzen einer bandförmigen Materialbahn | |
| DE3736683C2 (de) | Mehrrollen-Walzgerüst | |
| DE69031246T2 (de) | Walzverfahren in einem Fünfwalzen-Walzwerk | |
| EP4076778B1 (de) | Verfahren zum wechsel einer walzenkonfiguration in einem walzgerüst sowie walzenanordnung | |
| DE2908641A1 (de) | Verfahren zur ueberwachung der ebenheit von kaltgewalzten walzblechen und folien |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 24732857 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2025571418 Country of ref document: JP Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2025571418 Country of ref document: JP |
|
| ENP | Entry into the national phase |
Ref document number: 1020257041837 Country of ref document: KR Free format text: ST27 STATUS EVENT CODE: A-0-1-A10-A15-NAP-PA0105 (AS PROVIDED BY THE NATIONAL OFFICE) |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1020257041837 Country of ref document: KR |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202647001356 Country of ref document: IN |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2024732857 Country of ref document: EP |
|
| ENP | Entry into the national phase |
Ref document number: 2024732857 Country of ref document: EP Effective date: 20260109 |
|
| WWP | Wipo information: published in national office |
Ref document number: 202647001356 Country of ref document: IN |
|
| ENP | Entry into the national phase |
Ref document number: 2024732857 Country of ref document: EP Effective date: 20260109 |
|
| WWP | Wipo information: published in national office |
Ref document number: 1020257041837 Country of ref document: KR |
|
| ENP | Entry into the national phase |
Ref document number: 2024732857 Country of ref document: EP Effective date: 20260109 |
|
| ENP | Entry into the national phase |
Ref document number: 2024732857 Country of ref document: EP Effective date: 20260109 |
|
| ENP | Entry into the national phase |
Ref document number: 2024732857 Country of ref document: EP Effective date: 20260109 |
|
| WWP | Wipo information: published in national office |
Ref document number: 2024732857 Country of ref document: EP |