CN111148582A - Rolling of rolled material - Google Patents
Rolling of rolled material Download PDFInfo
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- CN111148582A CN111148582A CN201880064628.4A CN201880064628A CN111148582A CN 111148582 A CN111148582 A CN 111148582A CN 201880064628 A CN201880064628 A CN 201880064628A CN 111148582 A CN111148582 A CN 111148582A
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- roll
- stand
- rolling
- roll stand
- metal
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- 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
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
- B21B45/0245—Lubricating devices
- B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
- B21B45/0251—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for strips, sheets, or plates
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- 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
- B21B2001/228—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 skin pass rolling or temper rolling
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- 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
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
- B21B2027/103—Lubricating, cooling or heating rolls externally cooling externally
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
- B21B45/0245—Lubricating devices
Abstract
The invention relates to a rolling device (1) for rolling a rolled material (3), and to a method for operating a rolling device (1). The rolling device (1) has two roll stands (5), each of which has two working rolls (11) which are separated from each other by a roll gap (15) through which the rolled material (3) can be guided. In a first operating mode, a lubricant mixture consisting of carrier gas and lubricant and a coolant are applied to at least one working roll (11) of the first roll stand (5) and/or to at least one rolled material surface (25, 27) of the rolled material (3). In a second operating mode, the leveler is applied to the at least one working roll (11) of the first roll stand (5), the at least one working roll (11) of the second roll stand (7) and/or the at least one rolled material surface (25, 27) of the rolled material (3).
Description
The present invention relates to a rolling device for rolling a metal raw material and a method for operating the rolling device.
During rolling of the metal stock in the mill train of the rolling mill, the metal stock is usually deformed in one or more rolling passes. In particular in the case of cold rolling of metal raw materials, rolling devices are often provided at the end of the process line, which have two roll stands and can be operated in two different operating modes.
In the first operating mode, the thickness of the metal starting material is significantly reduced in the first roll stand of the rolling device, for example by more than three percent compared to the thickness of the metal starting material entering the first roll stand. On the other hand, in the second roll stand, the metal raw material is mainly finish rolled, i.e., the desired surface roughness of the metal raw material is produced, wherein the thickness of the metal raw material is only slightly reduced, for example, by less than three percent compared to the thickness of the metal raw material entering the second roll stand.
The first mode of operation is generally used for producing relatively hard and thin sheet steel, for example for producing tinplate having a thickness of less than 0.5mm, which is used for canned food products. The metal starting material is first rolled in a rolling train to a thickness approximately in the region of the desired final thickness of the metal starting material. Since a correspondingly large number of rolling steps or a correspondingly large reduction per pass is usually required for this purpose, the metal starting material is relatively brittle and short after these rolling steps or passes, and therefore the metal starting material is heat-treated, for example in an annealing furnace, in order to restore the toughness of the material. The recrystallization of the material structure taking place here reduces the material hardness, which means that the metal raw material can now be fed into the rolling device.
On the other hand, in the second operating mode the metal starting material is mainly finish rolled in the two roll stands of the rolling device without a significant reduction in thickness. The second mode of operation is used, for example, for rolling a metal stock which is thereafter galvanised and is usually somewhat thicker than the above-mentioned tinplate.
Since the thickness of the raw metal material is significantly reduced in the first roll stand in the first operation mode, the first operation mode requires sufficient lubrication of the raw metal material while the raw metal material passes through the first roll stand, and cooling of the raw metal material and the work rolls of the first roll stand after the raw metal material has passed through the first roll stand. In this first mode of operation, a lubricating emulsion having a relatively high lubricant content of 5 to 30% is therefore generally applied to the metal stock material before it passes through the first roll stand. The lubricating emulsion used is generally an emulsion comprising water and rolling oil as lubricant. In order to cool the metal stock material, a cooling emulsion substantially comprising water and rolling oil is applied to the work rolls of the first roll stand and/or the metal stock material after the metal stock material has passed through the first roll stand, the cooling emulsion having a relatively low rolling oil content.
DE 102009054205 a1 discloses a cooling and cleaning method in a casting plant, steel rolling mill or other strip processing plant, in which a cast part, rolled raw material or plant part is simultaneously cooled and cleaned and possibly also lubricated and sealed with a gas-liquid mixture.
WO 2012/079785 a1 discloses a method and an apparatus for applying a lubricant during rolling of a metal raw material. The mixture of lubricant and carrier gas is produced in an atomizing device and applied to at least one work roll and/or rolled stock material by means of a set of arranged spray nozzles.
The object of the present invention is to specify a rolling device and a method for operating the same, which are improved, inter alia, in terms of lubricant and coolant costs/consumption and efficiency of the lubricating effect.
This object is achieved according to the invention by a rolling device having the features of claim 1 and a method having the features of claim 12.
Advantageous embodiments of the invention are disclosed in the dependent claims.
The rolling apparatus for rolling a metal raw material of the present invention includes a first roll stand, a second roll stand spaced apart from the first roll stand by a certain distance, a lubricant mixture applying device, a coolant applying device, and a finishing agent applying device. Each roll stand comprises two work rolls separated by a roll gap through which the metal stock material can be guided. The lubricant mixture application device is designed to apply a lubricant mixture consisting of a carrier gas and a lubricant to a side of at least one working roll of the first roll stand, which is facing away from the second roll stand, and/or to at least one surface of the metal starting material on a side of the first roll stand facing away from the second roll stand, wherein the lubricant is a first rolling oil. Rolling oils suitable for lubricating roll gaps are well known and commercially available. The coolant application apparatus is designed to apply a coolant, such as cooling water or a cooling emulsion, to a side of the at least one work roll of the first roll stand, which side faces the second roll stand, and/or to at least one surface of the metal starting material on a side of the first roll stand facing the second roll stand. The finishing agent application apparatus is designed to apply a finishing agent to a side of the at least one work roll of the first roll stand, which side faces away from the second roll stand, and/or to at least one surface of the metal raw material on a side of the first roll stand facing away from the second roll stand and to a side of the at least one work roll of the second roll stand, which side faces the first roll stand, and/or to at least one surface of the metal raw material on a side of the second roll stand facing the first roll stand, wherein the finishing agent is an emulsion containing a second rolling oil and water. Suitable such finishing mills are well known and commercially available.
By means of the lubricant mixture application device, a lubricant mixture consisting of a carrier gas and a lubricant can be applied to the work rolls of the roll stand and/or the metal starting material to reduce friction between the metal starting material and the work rolls of the first roll stand in the first operating mode described above. The use of a lubricant mixture consisting of carrier gas and lubricant has many advantages over the use of a lubricating emulsion. On the one hand, it enables a reduction in lubricant consumption, since less lubricant is required to produce a lubricant mixture that is sprayed directly onto the work rolls and/or the metal stock material than is required for producing a lubricating emulsion. On the other hand, it eliminates the complex/expensive production and repair of lubricating emulsions typically used for lubrication.
The coolant application apparatus enables the work rolls of the first roll stand and the metal stock material to be cooled by the coolant. The use of cooling water as a coolant has many advantages over the use of cooling emulsions. The cooling emulsion can be used substantially only above a certain minimum temperature, for example, above about 40 degrees celsius to prevent molding and/or plugging of the tubing. In contrast, cooling water may be used at a lower temperature, for example about 20 degrees celsius, which correspondingly produces a better cooling effect than the lubricating emulsion. On the other hand, it eliminates the complex/expensive production and repair of cooling emulsions that are normally used for cooling.
The finishing agent application device enables the metal raw material to be finished with the finishing agent by the second roll stand in the first operating mode or by both roll stands in the second operating mode.
One embodiment of the invention provides that the carrier gas is air. Air is very suitable as carrier gas because it is cheap and environmentally friendly.
Another embodiment of the invention provides that the lubricant mixture application device has at least one atomization device, into which both carrier gas and lubricant are fed and which is designed for producing a lubricant mixture from carrier gas and lubricant. This enables the lubricant mixture application apparatus to produce the lubricant mixture without reserving the lubricant mixture.
Another embodiment of the invention provides that the lubricant mixture application device has a plurality of spray nozzles to which the lubricant mixture can be supplied and which are designed to dispense the lubricant mixture. Thus, the lubricant mixture may be selectively applied and distributed through the spray nozzle.
Another embodiment of the invention provides that the roll stand has at least one back-up roll for each work roll and that the rolling device has a cleaning fluid application device for applying a cleaning fluid to the at least one back-up roll. Water or cleaning emulsions, for example, are used as cleaning fluids. The cleaning fluid application apparatus has, for example, a plurality of cleaning nozzles for dispensing cleaning fluid. The cleaning fluid application apparatus enables the cleaning of abraded material collected on the surface of the backup roll from the backup roll. Such cleaning is advantageous because roughening the surface of the metal starting material during finish rolling produces wear particles that, unless removed, gradually contaminate the metal starting material. As described above, the rolling device is also preferably arranged at the end of the process line, where a very high cleanliness of the metallic raw material is required.
Another embodiment of the invention provides for a coolant recirculation system to which the coolant application device is connected and which has a collecting device for each roll stand to collect coolant dripping from the roll stand, and which has a coolant conditioning device for cleaning the coolant collected by the collecting device. This embodiment of the invention allows the coolant to be reused, thereby advantageously reducing coolant consumption.
In the method according to the invention for operating a rolling device according to the invention, in the first operating mode a lubricant mixture is applied to a side of the at least one working roll of the first roll stand which faces away from the second roll stand and/or to at least one surface of the metal starting material on a side of the first roll stand which faces away from the second roll stand, and a coolant is applied to a side of the at least one working roll of the first roll stand which faces towards the second roll stand and/or to at least one surface of the metal starting material on a side of the first roll stand which faces towards the second roll stand. In a second operating mode, the finishing agent is applied to a side of the at least one working roll of the first roll stand, which faces away from the second roll stand, and/or to at least one surface of the metal starting material on a side of the first roll stand facing away from the second roll stand and to a side of the at least one working roll of the second roll stand, which faces the first roll stand, and/or to at least one surface of the metal starting material on a side of the second roll stand facing the first roll stand. The advantages of the method according to the invention result from the above-mentioned advantages of the rolling device according to the invention.
An embodiment of the invention provides that, in the first operating mode, the finishing agent is applied to a side of the at least one working roll of the second roll stand, which side faces the first roll stand, and/or to at least one surface of the metal starting material on the side of the second roll stand facing the first roll stand. This embodiment enables the raw metal material to be planished with the planishing agent in the first mode of operation.
The above-mentioned features, characteristics and advantages of the present invention and their implementation will become more apparent and more readily understood in connection with the following description of exemplary embodiments, which are to be construed as follows, with reference to the accompanying drawings, in which:
figure 1 schematically illustrates a rolling mill according to the prior art,
fig. 2 schematically illustrates a rolling apparatus according to the present invention.
Corresponding parts have been provided with the same reference numerals in the figures.
Fig. 1 schematically illustrates a rolling apparatus 1 for rolling a metal stock 3 in the prior art. The rolling device 1 has two roll stands 5, 7, which are arranged one behind the other in the rolling direction 9. Each roll stand 5, 7 has two work rolls 11 and for each work roll 11 a back-up roll 13. The two work rolls 11 of the roll stands 5, 7 are separated by a roll gap 15, through which roll gap 15 the metal starting material 3 passes. The backup roll 13 of the work roll 11 is arranged on the side of the work roll 11 facing away from the roll gap 15.
The rolling apparatus 1 further comprises a lubricating emulsion applying device 17, a cooling emulsion applying device 19 and a finishing agent applying device 21.
The rolling device 1 operates in two different operating modes. In the first operation mode, the first roll stand 5, which is arranged upstream of the second roll stand 7 in the rolling direction 9 and thus the raw metal material 3 passes the first roll stand 5 before the second roll stand 7, significantly reduces the thickness of the raw metal material 3, for example by more than three percent compared to the thickness of the raw metal material 3 before the raw metal material 3 enters the first roll stand 5. On the other hand, in the second roll stand 7, the raw metal material 3 is mainly finish rolled, i.e., a desired surface roughness of the raw metal material 3 is produced, wherein the thickness of the raw metal material 3 is only slightly reduced, for example, by less than three percent, compared to the thickness of the raw metal material 3 before the raw metal material 3 enters the second roll stand 7. In the second operation mode, the raw metal material 3 is finish rolled in both the first and second rolling stands 5, 7, but there is no significant thickness reduction.
The lubricating emulsion applying apparatus 17 is used in the first mode of operation to apply a lubricating emulsion to the metal stock 3 upstream of the first roll stand 5. The lubricating emulsion is applied to the top metal stock surface 25 and the bottom metal stock surface 27 of the metal stock 3 by means of the lubricating nozzle 23 of the lubricating emulsion applying apparatus 17. The lubricating emulsion contains water and rolling oil and has a relatively high rolling oil content, for example, from 5 to 30%.
The cooling emulsion application device 19 is used in the first mode of operation to apply a cooling emulsion to the work rolls 11 of the first roll stand 5 and/or to the metal stock 3. The cooling emulsion is applied to the side of the work rolls 11 of the first roll stand 5 facing the second roll stand 7 and/or to the top and bottom metal stock surfaces 25, 27 of the metal stock 3 on the side of the first roll stand 5 facing the second roll stand 7 by means of the cooling nozzles 29 of the cooling emulsion application device 19.
In both operating modes, the finishing agent application device 21 applies finishing agent to the working rolls 11 of the second roll stand 7 and/or to the metal raw material 3 in the region of the roll gap 15 of the second roll stand 7. The finishing nozzles 31 of the finishing agent application device 21 are used to apply finishing agent to the side of the working rolls 11 of the second roll stand 7 facing the first roll stand 5 and/or to the top and bottom metal starting material surfaces 25, 27 of the metal starting material 3 on the side of the second roll stand 7 facing the first roll stand 5. The finishing agent is a finishing emulsion comprising water and a rolling oil, the finishing emulsion having a lower rolling oil content and a rolling oil different from the lubricating emulsion.
Furthermore, in the second operating mode, the finishing agent application device 21 also applies the finishing agent to the working rolls 11 of the first roll stand 7 and/or to the metal starting material 3 in the region of the roll gap 15 of the first roll stand 7. The other finishing nozzles 31 of the finishing agent application device 21 are used to apply finishing agent to the top raw metal material surface 25 and the bottom raw metal material surface 27 of the raw metal material 3 on the side of the working rolls 11 of the first roll stand 5 facing away from the second roll stand 7 and/or on the side of the first roll stand 5 facing away from the second roll stand 7.
The rolling device 1 also has a cleaning fluid application device 33 for applying a cleaning fluid to the back-up rolls 13 of the roll stands 5, 6 to clean worn-out material accumulated on the surfaces of the back-up rolls 13 from the back-up rolls 13. The cleaning fluid is distributed onto the backup roller 13 by means of the cleaning nozzle 35 of the cleaning fluid application device 33. Fig. 2 shows only the cleaning nozzles 35 for the backup roll 13 arranged above the work roll 11. However, the cleaning fluid application apparatus 33 may also have other cleaning nozzles 35 for the backup roll 13 disposed below the work roll 11. Water or cleaning emulsions may be used as cleaning fluids, for example.
Fig. 2 shows a rolling device 1 according to the invention. This rolling device 1 differs from the rolling device 1 shown in fig. 1 in that it has a lubricant mixture application device 37 instead of the lubricating emulsion application device 17. The rolling apparatus 1 also has a coolant application device 39 from which a coolant, either cooling water or a cooling emulsion, can be supplied.
The rolling device 1 shown in fig. 2 is also operated in two different operating modes. In the first mode of operation, the thickness of the raw metal material 3 is once again significantly reduced in the first roll stand 5, for example by more than three percent compared to the thickness of the raw metal material 3 upstream of the first roll stand 5, and in the second roll stand 7, the raw metal material 3 is mainly finish rolled, wherein the thickness of the raw metal material 3 is only slightly reduced, for example by less than three percent compared to the thickness of the raw metal material 3 upstream of the second roll stand 7. In the second operating mode, the metal raw material 3 is finish rolled in both the first rolling stand 5 and the second rolling stand 7 of the rolling device 1, again without a significant reduction in thickness.
The lubricant mixture application device 37 is used in the first operating mode for applying the lubricant mixture to the top metal stock surface 25 and to the bottom metal stock surface 27 of the metal stock 3 on the side of the working rolls 11 of the first roll stand 5 facing away from the second roll stand 7 and/or on the side of the first roll stand 5 facing away from the second roll stand 7. The lubricant mixture is a mixture of carrier gas and lubricant. Air, for example, is used as the carrier gas. Rolling oil is used, for example, as a lubricant. For each metal raw material surface 25, 27, the lubricant mixture application device 37 has an atomization device 41, the carrier gas is supplied to the atomization device 41 through a carrier gas duct 43 and the lubricant is supplied to the atomization device 41 through a lubricant duct 45 and the atomization device 41 is designed to generate a lubricant mixture from the carrier gas and the lubricant. The lubricant mixture application apparatus 37 also has a plurality of spray nozzles 47, and the lubricant mixture produced by the atomizing apparatus 41 can be supplied to these spray nozzles 47, respectively. The spray nozzles 47, which are supplied with the lubricant mixture by means of the atomizing device 41, are distributed over the entire width of the metal starting material 3 and spray the lubricant mixture evenly over the width of the metal starting material 3 onto the respective metal starting material surfaces 25, 27.
The coolant application apparatus 39 is used in the first operation mode to apply coolant (cooling water or cooling emulsion) to the work rolls 11 of the first roll stand 5 and/or to the raw metal material 3 on the downstream side of the first roll stand 5. The coolant is applied to the side of the work rolls 11 of the first roll stand 5 facing the second roll stand 7 and/or to the top 25 and bottom 27 metal stock surfaces of the metal stock 3 on the side of the first roll stand 3 facing the second roll stand 7 by means of the coolant nozzles 49 of the coolant application apparatus 39.
The rolling plant 1 also has a finishing agent application device 21 and a cleaning fluid application device 33, which are designed and used in the same way as the rolling plant 1 shown in fig. 1 and are therefore not described again here.
The rolling apparatus 1 also has a coolant recirculation system 51, to which coolant application device 39 is connected, the coolant recirculation system 51. The coolant recirculation system 51 has, for each roll stand 5, 7, a collecting device 53 for collecting coolant dripping from the roll stand 5, 7, and the coolant recirculation system 51 has a coolant regulating device 55 for cleaning the coolant collected in the collecting device 53. During cleaning of the coolant in the coolant conditioning device 55, rolling oil of the lubricant mixture, for example, and/or other substances, such as material worn away from the metal starting material 3, the work rolls 11 and/or the back-up rolls 13, is removed from the coolant.
Although the invention has been illustrated and described in detail by means of preferred exemplary embodiments, the invention is not limited to the disclosed examples and other modifications can be conceived by a person skilled in the art without departing from the scope of protection claimed by the invention.
List of reference numerals
1 Rolling device
3 metallic starting material
5. 7 roll stand
9 rolling direction
11 work roll
13 supporting roller
15 roll gap
17 lubricating emulsion application apparatus
19 cooled emulsion application apparatus
21 finishing agent applying apparatus
23 lubrication nozzle
25. 27 surface of metallic starting material
29 Cooling nozzle
31 finish rolling nozzle
33 cleaning fluid application apparatus
35 cleaning nozzle
37 Lubricant mixture application apparatus
39 cooling water application apparatus
41 atomizing device
43 carrier gas duct
45 lubricant pipeline
47 spray nozzle
49 coolant nozzle
51 recirculation of coolant
53 collecting device
55 cooling water conditioning equipment.
Claims (11)
1. A rolling device (1) for rolling a metal raw material (3), the rolling device (1) comprising
-a first roll stand (5) and a second roll stand (7) spaced at a distance from the first roll stand (5), wherein each roll stand (5, 7) has two work rolls (11), the two work rolls (11) being separated from each other by a roll gap (15), the raw metal material (3) being passable through the roll gap (15),
-a lubricant mixture application device (37) for applying a lubricant mixture consisting of a carrier gas and a lubricant to a side of at least one work roll (11) of the first roll stand (5), which side faces away from the second roll stand (7), and/or to at least one metal raw material surface (25, 27) of the metal raw material (3) on a side of the first roll stand (5), which side faces away from the second roll stand (7), wherein the lubricant is a first rolling oil,
-a coolant application apparatus (39) for applying a coolant to a side of at least one work roll (11) of the first roll stand (5), which side faces the second roll stand (7), and/or to at least one metal raw material surface (25, 27) of the metal raw material (3) on a side of the first roll stand (5), which side faces the second roll stand (7), and
-a finishing agent application device (21) for applying finishing agent to a side of at least one working roll (11) of the first stand (5), which side faces away from the second stand (7), and/or at least one metal raw material surface (25, 27) of the metal raw material (3) on a side of the first roll stand (5) facing away from the second roll stand (7), and to the side of at least one working roll (11) of the second roll stand (7) which faces the first roll stand (5), and/or to at least one raw metal material surface (25, 27) of the raw metal material (3) on one side of the second roll stand (7), the side faces the first roll stand (5), wherein the finishing agent is an emulsion comprising a second rolling oil and water.
2. Rolling device (1) according to claim 1 or 2,
wherein the carrier gas is air.
3. Rolling device (1) according to any one of the preceding claims,
characterized in that the coolant is cooling water or a cooling emulsion.
4. Rolling device (1) according to any one of the preceding claims,
characterized in that the lubricant mixture application device (37) has at least one atomization device (41), the carrier gas and the lubricant being supplied to the atomization device (41) and the atomization device (41) being designed to produce the lubricant mixture from the carrier gas and the lubricant.
5. Rolling device (1) according to any one of the preceding claims,
characterized in that the lubricant mixture application device (37) has a plurality of spray nozzles (47) to which the lubricant mixture can be supplied and which are designed to dispense the lubricant mixture.
6. Rolling device (1) according to any one of the preceding claims,
characterized in that the roll stand (5, 7) has at least one back-up roll (13) for each work roll (11) and the rolling device (1) has a cleaning fluid application device (33) for applying a cleaning fluid to the at least one back-up roll (13).
7. Rolling device (1) according to claim 6,
characterized in that the cleaning fluid is water or a cleaning emulsion.
8. Rolling device (1) according to claim 6 or 7,
characterized in that the cleaning fluid application device (33) has a plurality of cleaning nozzles (35) for dispensing the cleaning fluid.
9. Rolling device (1) according to any one of the preceding claims,
characterized by a coolant recirculation system (51) connected to the coolant application device (39) and having, for each roll stand (5, 7), a collecting device (53) for collecting coolant dripping from the roll stand (5, 7) and by a coolant conditioning device (55) for cleaning the coolant collected by the collecting device (53).
10. Method for operating a rolling device (1) designed according to any one of the preceding claims, wherein
-in a first mode of operation, the lubricant mixture is applied to a side of at least one working roll (11) of the first roll stand (5), which side faces away from the second roll stand (7), and/or to at least one metal raw material surface (25, 27) of the metal raw material (3) on a side of the first roll stand (5), which side faces away from the second roll stand (7), and the coolant is applied to a side of at least one working roll (11) of the first roll stand (5), which side faces towards the second roll stand (7), and/or to at least one metal raw material surface (25, 27) of the metal raw material (3) on a side of the first roll stand (5), which side faces towards the second roll stand (7), or
-in a second operating mode, the finishing rolling agent is applied to a side of at least one working roll (11) of the first rolling stand (5) facing away from the second rolling stand (7), and/or to at least one metal raw material surface (25, 27) of the metal raw material (3) on a side of the first rolling stand (5) facing away from the second rolling stand (7), and to a side of at least one working roll (11) of the second rolling stand (7) facing towards the first rolling stand (5), and/or to at least one metal raw material surface (25, 27) of the metal raw material (3) on a side of the second rolling stand (7) facing towards the first rolling stand (5).
11. The method of claim 10, wherein the first and second light sources are selected from the group consisting of,
characterized in that, in the first operating mode, the finishing rolling agent is applied to a side of at least one work roll (11) of the second stand (7), which side faces the first stand (5), and/or to at least one raw metal material surface (25, 27) of the raw metal material (3) on a side of the second stand (7), which side faces the first stand (5).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17194457.2 | 2017-10-02 | ||
| EP17194457.2A EP3461566A1 (en) | 2017-10-02 | 2017-10-02 | Rolling of a product |
| PCT/EP2018/069635 WO2019068382A1 (en) | 2017-10-02 | 2018-07-19 | Rolling of a rolled material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111148582A true CN111148582A (en) | 2020-05-12 |
| CN111148582B CN111148582B (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880064628.4A Active CN111148582B (en) | 2017-10-02 | 2018-07-19 | Rolling of rolled material |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20200269296A1 (en) |
| EP (2) | EP3461566A1 (en) |
| JP (1) | JP2020535970A (en) |
| CN (1) | CN111148582B (en) |
| MX (1) | MX2020003166A (en) |
| RU (1) | RU2767127C2 (en) |
| WO (1) | WO2019068382A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3733317B1 (en) * | 2019-04-30 | 2022-10-05 | Primetals Technologies Austria GmbH | Rolling of a product |
| EP3791971A1 (en) * | 2019-09-10 | 2021-03-17 | Primetals Technologies Austria GmbH | Cold rolling of a rolled product in a rolling line with several rolling stands |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5090225A (en) * | 1988-10-18 | 1992-02-25 | Sms Schloemann-Siemag Aktiengesellschaft | Method for cooling and lubricating chiplessly shaped metals |
| US5524465A (en) * | 1991-03-29 | 1996-06-11 | Hitachi, Ltd. | Work rolls crossing type mill, rolling system and rolling method |
| WO2005120739A1 (en) * | 2004-06-09 | 2005-12-22 | Sms Demag Ag | Method and rolling stand for cold rolling of metallic rolling stock in particular rolling strip with nozzles for gaseous or liquid treatment media |
| DE102009054205A1 (en) * | 2009-11-21 | 2011-05-26 | Sms Siemag Aktiengesellschaft | Cooling and cleaning in belt processing lines |
| CN102834191A (en) * | 2010-03-31 | 2012-12-19 | 住友金属工业株式会社 | Method for producing and device for producing hot-rolled steel sheet |
| CN103249504A (en) * | 2010-12-16 | 2013-08-14 | 西门子Vai金属科技有限责任公司 | Method and apparatus for applying a lubricant while rolling metallic rolled stock |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10143407A1 (en) * | 2001-09-05 | 2003-03-20 | Sms Demag Ag | Selective use of lubricants when cold-rolling metal strip, employs emulsion for relatively-large reductions and rolling oil for smaller, finishing reductions |
| RU2278755C1 (en) * | 2004-11-10 | 2006-06-27 | Открытое акционерное общество "Новолипецкий металлургический комбинат" (ОАО "НЛМК") | Apparatus for supplying lubricating and cooling fluid at skin pass rolling |
-
2017
- 2017-10-02 EP EP17194457.2A patent/EP3461566A1/en not_active Withdrawn
-
2018
- 2018-07-19 MX MX2020003166A patent/MX2020003166A/en unknown
- 2018-07-19 CN CN201880064628.4A patent/CN111148582B/en active Active
- 2018-07-19 EP EP18739882.1A patent/EP3691805B1/en active Active
- 2018-07-19 US US16/649,872 patent/US20200269296A1/en not_active Abandoned
- 2018-07-19 JP JP2020518753A patent/JP2020535970A/en active Pending
- 2018-07-19 WO PCT/EP2018/069635 patent/WO2019068382A1/en unknown
- 2018-07-19 RU RU2020113071A patent/RU2767127C2/en active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5090225A (en) * | 1988-10-18 | 1992-02-25 | Sms Schloemann-Siemag Aktiengesellschaft | Method for cooling and lubricating chiplessly shaped metals |
| US5524465A (en) * | 1991-03-29 | 1996-06-11 | Hitachi, Ltd. | Work rolls crossing type mill, rolling system and rolling method |
| WO2005120739A1 (en) * | 2004-06-09 | 2005-12-22 | Sms Demag Ag | Method and rolling stand for cold rolling of metallic rolling stock in particular rolling strip with nozzles for gaseous or liquid treatment media |
| DE102009054205A1 (en) * | 2009-11-21 | 2011-05-26 | Sms Siemag Aktiengesellschaft | Cooling and cleaning in belt processing lines |
| CN102834191A (en) * | 2010-03-31 | 2012-12-19 | 住友金属工业株式会社 | Method for producing and device for producing hot-rolled steel sheet |
| CN103249504A (en) * | 2010-12-16 | 2013-08-14 | 西门子Vai金属科技有限责任公司 | Method and apparatus for applying a lubricant while rolling metallic rolled stock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111148582B (en) | 2022-05-10 |
| RU2767127C2 (en) | 2022-03-16 |
| EP3691805B1 (en) | 2021-10-20 |
| RU2020113071A (en) | 2021-11-08 |
| US20200269296A1 (en) | 2020-08-27 |
| WO2019068382A1 (en) | 2019-04-11 |
| JP2020535970A (en) | 2020-12-10 |
| EP3461566A1 (en) | 2019-04-03 |
| MX2020003166A (en) | 2020-07-29 |
| EP3691805A1 (en) | 2020-08-12 |
| RU2020113071A3 (en) | 2021-11-30 |
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