Method and device slab forming

FIELD: process engineering.

SUBSTANCE: invention is intended for optimizing slab rolling in device comprising, at least, one furnace 2, at least, one slab processing device 3, 4 arranged in slab transfer direction F downstream of furnace 2, and, at least, one group 5 of rolling mill stands. Note here that said device incorporates appliances 6,7 to apply force to slab sides 8, 9 to make slab axis 10 shift across said direction F in compliance with axis 11 of aforesaid group 5. To optimise rolling by precise feed of slab 1 into group 5, first appliances 6 are used to apply lateral force thereto at first section 12 and by second appliances 7 at second section 13. Note here that said second section 13 in direction F is spaced from first section 12. Note also that first section 12 is located downstream, of furnace 2. Note that second section 12 is arranged upstream of, inside or downstream, of, at least, one processing device 3, 4. Proposed device comprises appropriate equipment.

EFFECT: optimised forming.

32 cl, 7 dwg

 

The invention relates to a method of processing a slab in the device, which includes at least one furnace, at least one located in the conveying direction of the slab after the furnace processing device and one located in the conveying direction of the slab after processing device group work stands rolling mill, and funds are available, through which may have the force to the sides of the slab to move the axis of the slab in accordance with the specified position transversely of the transport direction of the slab, in particular in accordance with the axis group work stands rolling mill. In addition, the invention concerns a device for processing slab.

In the manufacture of strips of the slab, such as a thin slab, the slab is transported in the conveying direction through the processing plant. During transport thin slab through the tunnel furnace (the furnace roller hearth) the slab can be moved in the lateral direction. Subsequent introduction into the finishing mill group because of this bias is difficult. In front of the finishing stands of the rolling mill is often provided by swaging device. Additionally, there are side guides, as a rule, in order to direct the slab to the axis of the working group stands rolling mill. Therefore, the reducing condition is the device or accordingly, mechanical guides in the head part should be wide open and often only after a reliable entry into the first horizontal mill finishing stands are installed in a narrower guiding position. Due to adverse conditions or, respectively, because of the risk that the slabs will get stuck in the blooming device, swaging device in the head part of the slab is not used. Later, the approach of the crimping device and the late start of the compression process can lead to different widths along the length of the strip.

To improve the alignment of the slab at the exit of the furnace, in DE 60101340 T2 describes a suitable method and apparatus. Accordingly, provides for the centering of the slab in the latter part of the furnace. While briefly in the oven slide guide rollers which are in contact with the side of the slab, making it the effort and thus center the slab. However, it is very costly in relation to the maintenance process, because the guides are often exposed to high temperatures of the furnace. The disadvantage here is that the permanent lateral opening of the furnace to the entrance of the rollers adversely affects the atmosphere of the furnace. The result is increased scale formation on the rollers of the furnace, as well as additional coverage onlineceleb. Despite centering in the oven after that, i.e. in the conveying direction after the furnace, there is still a risk that the slab after the furnace will again make lateral displacement. When the S-shaped or its sable-like shape of the slab is achieved by using the previously known solutions centering is also limited.

In relation to the center of the slab would preferably be positioned in front of a group of finishing stands of long linear guide, as it is known for rough mill groups. Such a solution is known from US 2072121. However, increasing the length of the transport between the oven and the finishing mill group for the location there is a long guide, for reasons associated with temperature rolling (loss temperature), it is impossible. In addition, because of the quality of the surface is necessary to remove scale from the slabs was possible before the rolling process. Additionally, between the oven and the finishing mill group should be, there are also other processing devices, such as scissors.

In DE 4310547 C2 also describes a solution for centering of the slab, however, and we apply the linear guides in several pieces and a large length, which in the present case before the finishing mill group for the specified reason impossible. A similar solution is contained in JP 63101004 A.

In about the Nova of the present of the invention is to provide a method of the aforementioned kind and a corresponding device, with the help of which it will be possible simple means immediately before the group work stands rolling mill, in particular before the finishing mill group, the accurate centering and direction of the slab and, in particular, reliable compression along the length of the slab. In addition, it should be provided not represent problems rolling head and the end portion of the slab. The rolling process should be thus optimized by precise injection of the slab in group work stands rolling mill. In particular, the project envisages implementation of centering and direction of the slab directly in front of the finishing mill group so that there was no significant lengthening of the distance between the oven and the finishing mill group.

The solution to this problem in accordance with the invention in the part of the method is characterized by the fact that the first means for application of lateral force to the slab acting on the slab on the first segment and second means for application of lateral force to the slab acting on the slab on the second site, the second site in the conveying direction of the slab is at a distance from the first section and the first section is located after the furnace and the second section is located before, within or after the at least one processing device.

A more specific variant implementation is tvline invention provides, the first site is located after the furnace and before the first at least one processing device and the second site is located within or after the first at least one processing device.

Rolling in group work stands rolling mill can be a finishing rolling slab with obtaining strip.

Reliable operation can be ensured, if the determined position of the head part of the slab in the region of at least one of the mentioned tools, and the application of lateral force to the slab by the supply of the contact element begins only when the head part of the slab was this tool.

Directly in front of a group of workers stands of the rolling mill, the slab may be subjected to compression in a direction transverse to the conveying direction. In this case preferably provided that the application of lateral force to the slab using the tools mentioned occurs before the plot of compression and at a distance from him.

That is to say that preferably provided that the first means for application of lateral force to the slab is located after the furnace, and a second tool for the application of lateral force to the slab at a distance from him before compression device.

The application of lateral force to the slab using the tools mentioned Khujand is realized preferably in front of a group of workers stands rolling mill.

The means for the application of lateral force to the slab preferably operated in such a way that the front part of the slab tsentrirovannoi included in the plot of compression and/or group work stands rolling mill.

At least two means for the application of lateral force to the slab can be located after the furnace, while the first section is located between the microwave and the first processing device, and a second section between at least two processing devices or within the second processing device. In this case turned out to be preferred, if the first processing device, the slab is subjected to a cutting process. In the second processing device, the slab is preferably subjected to a process of descaling.

One of the improved embodiments of the invention provides that the determined position and/or shape of the slab in the direction transverse to the conveying direction of the slab along its displacement in the conveying direction before the first section.

The application of lateral force to the slab by means may be controlled or regulated in such a way that the axis of the slab in the conveying direction after the second section occupies the desired position.

Adjustment means for the application of bogovarovoy to the slab may be carried out depending on the geometry of the device, and/or some form of slab, and/or deflection of the slab from the Central axis and/or the width of the slab using a mathematical model.

A device for processing slab, which includes at least one furnace, at least one located in the conveying direction of the slab after the furnace processing device and one located in the conveying direction of the slab after processing device group work stands rolling mill, in particular the finishing group work stands rolling mill, as well as the means by which may have the force to the sides of the slab to move the axis of the slab in accordance with the specified position transversely of the transport direction of the slab, in particular in accordance with the axis group work stands rolling mill in accordance with the invention provides, the first means for application of lateral force to the slab are located on the first segment and second means for application of lateral force to the slab are located on the second site, the second site in the conveying direction of the slab is at a distance from the first section and the first section is located after the furnace and the second section is located before, within or after the at least one processing device.

Thus preferably the por is gusmorino, the first section is located after the furnace and at least one processing device and the second site is located within or after the first at least one processing device.

The area inside the furnace when it preferably does not contain the mentioned tools for the application of lateral force to the slab.

Directly in front of a group of workers stands of the rolling mill can be located swaging device for compression of the slab in the direction transverse to the direction of transport.

Between the compression device and the first rolling stand of the group's work stands rolling mill can be arranged in a linear side rails serve for centering and direction of the slab. In addition, under and/or over linear lateral guides can be located in the adjusting elements of the linear side rails.

The means for the application of lateral force to the slab can be located at a distance from the crimping device. They can also be placed before the group work stands rolling mill.

One of the advanced options also provides that at least two means for the application of lateral force to the slab is placed after the furnace, while the first section is located between the microwave and the first store the current device, and a second section between at least two processing devices or within the second processing device. When the first processing device preferably is a pair of scissors. The second processing device is preferably a device for descaling.

Means for the application of lateral force to the slab may include at least one roller, which is located on the swivel arm and the swivel arm still installed in one control point and can turn actuator, which acts on the rotary lever beyond the pivot point.

Means for the application of lateral force to the slab may include at least one roller, which is located on the linear actuator, the direction of movement which is oriented transversely of the transport direction of the slab.

In both cases, one of the advanced options provides that the actuator or a linear actuator made in the form of a hydraulic cylinder-and-piston system.

First means for application of lateral force to the slab can also be made in the form of linear guides.

The proposed device is preferably an integral part lit is Ino-rolling plants for the production of thin slabs. It may also be part of the group's work stands for the production of hot rolled strip, which includes a roughing mill group and finishing mill group; in this case, the device preferably is before the finishing mill group.

That is, the invention lies in the fact that the centering and direction of the slab directly in front of the finishing mill group with side guide roller is carried out in such a way that between the microwave and the finishing mill group is only a short stretch of road. Roller side guides are located between the individual units (processing devices) at an appropriate distance. Additionally, before the first rolling stand of the finishing group are preferably swaging device and a mechanical or hydraulic side guide.

The proposed solution applies when so-called CSP technology. Under it should be understood manufacture of steel strip in the casting and rolling installation for the production of thin slabs, which enables efficient production of hot rolled strip.

Due to the proposed measures may, in particular, increasing the yield and reducing the number of adjustments of the mold. It becomes possible direct impact on W is the real estate market before the finishing mill group. In addition, improving the speed of the strip.

The drawings depict embodiments of the invention. Shown:

figure 1 - schematic side view of a device for processing and directions of the slab between only partially depicted oven and the first rolling stand of the finishing group work stands rolling mill,

figure 2 schematically appropriate Fig.1 top view,

figure 3 schematically an image used guide elements for slabs similar to the image presented in figure 2, on the device from above,

figure 4 is similar to figure 3 the image, and it depicts a larger area of the furnace,

5 is again schematically the image used guide elements for slabs similar to the image presented in figure 2 and 3, the device of the above case of strongly curved slab,

6 is a front view when viewed in the conveying direction of the slab,

7 is a top view depicted in Fig.6 region of the device immediately prior to the first rolling stand of the finishing mill group.

Figure 1 and 2 shows the device with which you can handle the slab 1 in the transport direction F of transportation. Specifically depicts an end region of the furnace 2 and the first rolling mill group 5 work stands rolling mill, between which transported the slab 1. Between the ECU 2 and group 5 work stands rolling mill is the first processing device 3 in the form of scissors, and a second processing device 4 in the form of a device for descaling. There are also two tools 6 and 7 for the application of lateral force to the slab 1, i.e. roller side guides, are equipped with contact elements in the form of rollers 14, which may cling to the sides 8 and 9 of the slab 1, so as to center the slab to the axis 10 of the slab corresponded to the axis 11 group 5 work stands rolling mill.

It is important that the first means 6 for the application of lateral force to the slab 1 influenced the slab 1 in the first section 12 and to the second means 7 for the application of lateral force to the slab influenced the slab 1 in the second area 13. The second area 13 in the direction of F transportation slab 1 is located at a distance from the first section 12; the first section 12 is located after the furnace 2 and before the first processing device 3, the second section 13 is located within or after the first processing device 3, in this embodiment, between the two processing devices 3 and 4.

That is, both tools 6 and 7 serve to center the slab, so that he tsentrirovannoi included in the swaging device 15, which is located immediately before the first rolling stand of the finishing group 5 stands. Between the compression device 15 and the first rolling stand of the finishing group 5 stands are also linear side guides 16 and 17, which are also CE is tryout slab 1.

As you can see in figure 2, the means 6, 7 can include a swing arm 18, which is mounted in a fixed anchor point 19 and at the end of which, remote from the pivot point 19, a roller 14. The actuator 20 acts on the swing arm 18 and is used for proper adjustment of the roller 14 relative to the lateral sides 8, 9 of the slab. Alternatives 6, 7 may also include a linear actuator 21, which linearly moves the roller 14 relative to the strip edges.

The implementation of the method can be explained as follows.

When transporting the slab 1 from the furnace 2 in the direction of finishing 5 stands first lateral guide roller 6, that is, the first means for application of lateral force to the slab, installed on the excess width. After the front part of the slab has passed the rollers 14, which are registered with hot metal detectors or by tracking movements), the rollers 14 are slowly moving to the sides 8, 9 of the slab, that is, to the edges of the slab, and the gap between the slab and the rollers is closed. The clamping force created by the hydraulic cylinders, are measured and then installed on the specified minimum effort. This has been the center of the slab 1 and the grip of the rollers 14. This process of centering vypolnjaete is slowly and continuously transported forward the slab. When moving the slab may be a slight lateral displacement of the slab 1 at low effort shift. The process of centering must be completed before reaching the second pair of roller 7 side rails, i.e. the second means for application of lateral force to the slab. When the front part of the slab passes the second lateral guide roller, there is the same process centering. If both rollers 14 are tsentrirovannoi, then with high probability is coaxial input slab in swaging device 15 and in the finishing group 5 stands.

Joining the swaging unit 15 is supported by rollers 22 (see figure 1), which is integrated into the device 4 for descaling, at least as long until the capture of the compression device 15 or the first stand of the finishing group of 5 cages.

The second pair of roller 7 side rails, i.e. the second tool for the application of lateral force to the slab, may be, as shown, is in front of the device for removing scale, integrated within the device for descaling or placed after the device for descaling. Optionally it may be a drive roller 14 means 6 and 7. The second roller side guide 7 may be performed for direct movement in the direction of the width (see configurations is Yu on the second area 13 figure 2) or by turning the lever (as on the first segment 12 figure 2).

Instead roller side roller guide having a larger size in one of alternative embodiments (not illustrated) can be provided by two spaced closely to each dual roller smaller in one pilot site, but always so that still provided a short design. By means of two roller side guides 6 and 7, which are at a distance from each other, the effect of long continuous side rail. Roller side guides 6, 7 is formed as one Assembly from the point of view of control technology.

When a large deviation of the slabs from the Central axis or the appearance of high effort displacement (thin slabs thicker, long slabs, too weak enforcement mechanisms, limited efforts bias), it is optionally possible deviations from the above-described methods of axial adjustment of the two roller side guides 6, 7. In this regard, refer to figure 3, which simplistically illustrates this situation. In this case, the roller side guides 6, 7 are arranged so that is reliable centered enter the front of the slab in the swaging unit 15. In this case it is probably only a partial implementation of the effect of centering. The centered entry of the head part of the slab in the swaging trojstvo 5 in this case is given higher priority. Knowing the distance a1and a2(see figure 3) between the roller side guides 6, 7 and compression device 15, the efforts of the rollers and settlement (small) compression on the rollers, it is possible to determine the position of the actuators 20, 21, so that this task will be performed. The provisions of both roller side guides 6, 7 correspond to each other. Between the rollers 14 of the means 6, 7 and rollers crimping device 15 is formed at this direct link.

If it should be expected that the slab 1 may take any curved shape (swords, S-shaped, the shape of the hook) and it also is not on the axis, the optimal positioning of the roller side guides 6, 7 is somewhat more complicated. In this case, you define a shape of the slab and the slab length. For this the laser distance measurement or other signals registration provisions, for example, before the last section of the furnace (after boot device), as illustrated in figure 4 for the registration and determination of the form of slabs and regulations in length. It also marked the deviation ∆y slab from the Central axis of the installation.

By registering transportation speed of the slab 1 and the classification of measured signals of the distance to the edges of the sensor 23 to detect the edges of the band on obey the lateral sides of the slab, you can define the width, position or in General the shape of the slab (see point xbi, ybi) in length. Defined here form and the deviation ∆yifrom the Central axis of the later is used for optimal positioning roller side guides 6, 7 and/or rollers crimping device 15. Optional additional registration of the width and position of the slab after the furnace on the sides by the sensors 24, or top, or bottom.

Details of the adjustment roller side guides 6, 7 and rollers crimping device 15 are visible in figure 5, where we are talking about adjusting roller side guides and rollers crimp device, so that even when the curved slab provided with a centered entry of the head part of the slab in the swaging device or, respectively, in the finishing mill group.

Knowing the shape of the slab (point xbi, ybiand the width B of the slab 1), we can come to the position of the rollers 14 and rollers crimping device 15 (X1, Y1; X2, Y2; X3, Y3 relative to the center of the slab). These provisions during the passage of the front of the slab from the furnace 2 to the first stand of the finishing group of 5 cages adapted to the respective shape of the slab and partially is traversed, so that achieving the goal axial direction of the front of the slab in the swaging unit 15. This provided also that the rollers crimp in which trojstva 15 can stand asymmetrically, i.e. not along the Central axis to support the roller side guides 6, 7.

Optionally or additionally set out on the same principle can be also achieved goal centered entering the front of the slab to the next crate.

After the occurrence of the slab 1 in group 5 work stands rolling mill purpose is coaxially positioning or centering roller side guides 6, 7, and crimping device 15 along the length of the slab so that the slab 1, in particular the end of the slab was possibly right, partially levelled and so were included in group 5 work stands rolling mill.

By the end of the slab rollers crimping device 15 are fed symmetrically (short stroke control)to avoid excess width at the end of the slab or to reduce it. Similarly act and in the head part of the slab.

Alternative or in addition to the optical measurement of the width of the registration can be carried width or position by displacement sensors roller side guides and/or squeeze rollers. In addition, the reported signal width and the calculated broadening or changing the width in the finishing mill group is used in the model width to determine the magnitude of compression and together with those settings crimping device is.

To increase the width reduction on the blooming device 15, is provided for clamping or clamping rollers, which are located exactly between the two crimping rollers and the top and bottom center of the slab 1 are pressed against the surface of the slab, preventing swelling.

In addition, it may be provided for facilitating compression of the slab by lubrication of squeeze rolls. This increases the cross-flow of material, reduced efforts compression and swelling, and it also has a positive effect on the roughness of the slab and tube rolls and at the same time the service life of squeeze rolls.

In order to improve conditions at the end of the slab and to the slab as long as possible, additionally there is a special mechanical lateral guide between the compression device 15 and the first cell group 5 work stands rolling mill (see figure 1 and 2). The details of her see figure 6 and 7. The goal is to position the crimp device 15 close to the first cell group 5 work stands rolling mill, and the mechanical edge guide as possible before mijalkov gap of the first stand. To reposition the mechanical side rails, i.e. the linear side rails 16 and 17, could be carried out without additional needs in the area and without weakening the support racks use the things of cage (through grooves in them), preferably adjustment is provided under (or, optionally, also above) linear side rails 16, 17, as shown in Fig.6 and 7. Alternatively, you can adjust the linear side rails 16, 17 together with the adjustment of the crimping device 15. During this swaging device and linear side rails were still connected to each other.

The linear adjustment of the side guides 16, 17 on the guide 27 is two adjusting elements 26 (cylinders) on each side. The adjusting elements 26 at the top provided with a heat-insulating element 26 (cooled transfer table, the insulation plate). The mechanical position of the side rail during operation corresponds to the position of the width of the crimping device 15 plus the specified value (in millimeters).

Described is a method or, respectively, shows the device is not limited to the installation of CSP, and are also used in similar production units after the furnace area. The proposal of the invention may also be applied, for example, in a traditional mill groups for the production of hot rolled strip. There are registered form tackle after roughing mill group during transport in the direction of the finishing train, and there by proper installation of the rollers before the finishing of the GRU who sing trains run above target.

In the traditional group stands for the production of hot rolled strip, the first effect of centering can be obtained before the scissors alternative to the application site 6 roller side guides by means of ruler guides.

The list of items

1 Slab

2 Oven

3, the First processing device (scissors)

4 the Second processing device (a device for descaling)

5 Group work stands rolling mill

6, the First means for application of lateral force to the slab (roller side guide)

7 the Second tool for the application of lateral force to the slab (roller side guide)

8 Lateral side slab

9 Lateral side slab

10 Axis slab

11 Axis group work stands rolling mill

12 the First section

13 the Second section

14 Contact element (movie)

15 Swaging device

16 Linear lateral guide

17 Linear lateral guide

18 Swing arm

19 Reference point

20 actuator

21 Linear actuator

22 Leading roller

23 Sensor to detect the edge of the slab.

24 Sensor to detect the edge of the slab.

25 -

26 Adjusting element linear side guide

27 Guide

F the conveying Direction

∆y Deviation from the Central axis

B Width of slab

xBCoordinate slab length

yBCoordinate describing the shape of a slab

1. A method of manufacturing a strip of the slab, including the processing in the device for manufacturing a strip containing at least one furnace (2), at least one located in the direction (F) transporting the slab (1) after the furnace (2) processing device (3, 4) and one located in the direction (F) transporting the slab (1) after processing device (3, 4) group (5) business stands rolling mill, and means (6, 7) for the application of lateral force to the slab, whereby making force to the sides (8, 9) of the slab (1)to move the axis (10) of the slab (1) in accordance with the specified position crosswise to the direction (F) transporting the slab (1), in particular, in accordance with the axis (11) group (5) business stands rolling mill, characterized in that the first means (6) for the application of lateral force to the slab (1) affect the slab (1) on the first segment (12)and second means (7) for the application side efforts to the slab (1) affect the slab (1) the second part of (13), while the second section (13) in the direction (F) transporting the slab (1) is located at a distance from the first section (12), the first portion (12) is located after the furnace (2), and the second section (13) located the Yong before, inside or after at least one processing device (3, 4).

2. The method according to claim 1, characterized in that the first section (12) is located after the furnace (2) and before the first at least one processing device (3, 4), while the second section (13) is located within or after the first at least one processing device (3, 4).

3. The method according to claim 1, characterized in that the rolling in the group (5) working stand rolling mill is a finishing rolling slab with obtaining strip.

4. The method according to any one of claims 1 to 3, characterized in that determine the position of the head part of the slab (1) in at least one of the means (6, 7) for the application of lateral force to the slab (1), and the application of lateral force to the slab (1) by supplying a contact element (14) begin after the passage of the head part of the slab (1) means (6, 7) for the application of lateral force to the slab.

5. The method according to any one of claims 1 to 3, characterized in that immediately before the group (5) business stands rolling mill slab (1) is subjected to compression in a direction transverse to the direction (F) transportation.

6. The method according to claim 5, characterized in that the application of lateral force to the slab (1) with means (6, 7) for the application of lateral force to the slab is carried out before the site of compression and at a distance from him.

7. The method according to any one of claims 1 to 3, the tives such as those the application of lateral force to the slab (1) with means (6, 7) for the application of lateral force to the slab is carried out before the group (5) working stand rolling mill.

8. The method according to claim 5, characterized in that the means (6, 7) for the application of lateral force to the slab (1) is preferably used so that the front part of the slab (1) tsentrirovannoi included in the plot of compression and/or in group (5) working stand rolling mill.

9. The method according to claim 1, characterized in that at least two means (6, 7) for the application of lateral force to the slab (1) is located after the furnace (2), with the first section (12) is located between the furnace (2) and the first processing device (3), and the second area (13) between at least two processing devices (3, 4) or within the second processing device (4).

10. The method according to claim 9, characterized in that the first processing device (3) slab (1) is subjected to cutting.

11. The method according to claim 9 or 10, characterized in that the second processing device (4) of the slab (1) is subjected to descaling.

12. The method according to claim 1, characterized in that determine the position and/or shape (xin, yin, Δy) of the slab (1) in the direction transverse to the direction (F) transporting the slab (1) along its movement in the direction (F) transportation before the first section (12).

13. The method according to claim 1, characterized in, is the application of lateral force to the slab (1) means (6, 7) carry out a controlled or regulated manner so that the axis (10) of the slab (1) in the direction (F) transportation after the second section (13) is specified position.

14. The method according to item 12 or 13, characterized in that the adjustment means (6, 7) for the application of lateral force to the slab (1) is carried out in dependence on the geometry (a1and2and3device and/or a particular form (xin, yin) slab and/or deviation (Δy) of the slab (1) from the Central axis and/or the width (In) slab (1) using a mathematical model.

15. Device for the manufacture of strips of the slab (1)containing at least one furnace (2), at least one located in the direction (F) transporting the slab (1) after the furnace (2) processing device (3, 4) and one located in the direction (F) transporting the slab (1) after processing device (3, 4) group (5) business stands rolling mill, in particular, the finishing group work stands rolling mill, and means (6, 7)for application of force to the sides (8, 9) of the slab (1) to move the axis (10) of the slab (1) in accordance with the specified position crosswise to the direction (F) transporting the slab (1), in particular, in accordance with the axis (11) group (5) business stands rolling mill, characterized in that it is intended to implement the method according to any one of claims 1 to 14, when etampere means (6) for the application of lateral force to the slab (1) is located on the first segment (12), and the second means (7) for the application of lateral force to the slab (1) is located on the second section (13), the second section (13) in the direction (F) transporting the slab (1) is located at a distance from the first section (12), with the first section (12) is located after the furnace (2), and the second area (13) - before, inside or after the at least one processing device (3, 4).

16. The device according to item 15, wherein the first section (12) is located after the furnace (2) and before the at least one processing device (3, 4), and the second section (13) is within or after the first at least one processing device (3, 4).

17. The device according to item 15 or 16, characterized in that the area inside the furnace (2) does not contain means (6, 7) for the application of lateral force to the slab (1).

18. The device according to item 15, wherein immediately before the group (5) working stand rolling mill is located swaging unit (15), designed for compression of the slab (1) in the direction transverse to the direction (F) transportation.

19. The device according to p, characterized in that between the compression device (15) and the first rolling stand (5) working stands of the rolling mill are linear side rails (16, 17) for centering and direction of the slab (1).

20. The device according to claim 19, characterized in that the under and/or above the line side voltage is aplaudida (16, 17) are the adjusting elements (26) linear side rails (16, 17).

21. Device according to any one of p-20, characterized in that the means (6, 7) for the application of lateral force to the slab (1) is located at a distance from the crimping device (15).

22. The device according to item 15, characterized in that the means (6, 7) for the application of lateral force to the slab (1) located in front of the group (5) working stand rolling mill.

23. The device according to item 15, wherein the at least two means (6, 7) for the application of lateral force to the slab (1) is located after the furnace (2), with the first section (12) is located between the microwave (2) and the first processing device (3), and the second area (13) between at least two processing devices (3, 4) or within the second processing device (4).

24. The device according to item 23, wherein the first processing device (3) is made in the form of scissors.

25. The device according to item 23 or 24, characterized in that the second processing device (4) is designed as a device for descaling.

26. The device according to item 15, characterized in that the means (6, 7) for the application of lateral force to the slab (1) include at least one roller (14), which is located on the pivot lever (18), permanently installed in one control point (19) can be rotated Executive tavern is SMOM (20), which acts on the pivot arm (18) outside the reference point (19).

27. The device according to item 15, characterized in that the means (6, 7) for the application of lateral force to the slab (1) include at least one roller (14), which is located on the linear actuator (21), the direction of movement which is oriented crosswise to the direction (F) transporting the slab (1).

28. The device according to p or 27, characterized in that the actuator (20) or linear actuator (21) is designed as a hydraulic cylinder-piston system.

29. The device according to item 15, characterized in that the first means (6) for the application of lateral force to the slab (1) is made in the form of linear guides.

30. The device according to item 15, characterized in that it is an integral part of the casting and rolling plants for the production of thin slabs.

31. The device according to item 15, characterized in that it is an integral part of the group's work stands for the production of hot rolled strip, which includes roughing and finishing mill group.

32. The device according to p, characterized in that it is located before the finishing mill group.



 

Same patents:

FIELD: metallurgy.

SUBSTANCE: proposed method comprises lengthwise feed of rolled stock on roll bed. Rolled stock after finishing stands is carried to reel via laminar cooling zone arranged between finishing stands and reel. Note here that material is guided along and on both sides of laminar cooling zone by, at least, one lateral guide while position of lateral guides is set subject to position of cooler arranged under rolled stock and provided with screens for liquid coolant. Or, position of said cooler is set subject to position of lateral guides. Material may be guided along and on both sides of laminar cooling zone by several lateral guides.

EFFECT: higher efficiency and quality.

11 cl, 3 dwg

FIELD: metallurgy; mechanics.

SUBSTANCE: facility contains transport facility, stand with inclined ways and stop, mechanism of blanks clamp, containing of wedge-like grips, located angularly 120° to each other and pivotally connected to tractions with slider, cavity cylindrical package, inside of which it is movable located rod with firing-pin, connected with hydraulic actuator of its movement. Mechanism of blanks clamp is movable installed in inclined ways of stand. Stand is pivotally connected to link mechanism of its lifting - lowering. Rod with firing-pin is bounded to hydraulic actuator of its movement by means of quick-split sleeve. Rods, connecting wedge-like grips with slider, are outfitted by spherical hinge and connected to hydraulic actuator of clamp. Wedge-like grips are implemented as radial and changeable for each diameter of blank, and connection of it to inclined ways of stand is implemented in the form of "dovetail". Lifting - lowering mechanism is implemented in the form of two double-arm lever, bounded to each other by means of rod and regulation mechanism with electric drive.

EFFECT: invention provides implementation of accurate centering of blanks wide range of diameters and improved reliability and durability of facility.

2 cl, 4 dwg

FIELD: systems for increasing intensity of cooling at shortening length of cooling zone.

SUBSTANCE: in front of rolled blank between rollers of roller table devices for water spraying are mounted in fixed state. Over blank in carrying beams spraying collectors are mounted. Said carrying beams are secured to movable round tube arranged in parallel relative to lengthwise axis of roller table and provided with rotation drive and with water supply system. Water supply is centralized with control and monitoring system having valves for supplying or cutting off cooling water. Compact cooling zone with high cooling intensity is achieved due to maximally close arrangement of rollers of roller table one to other. Lower cooling collector is arranged slightly lower in space between rollers. Collectors have bear shaped cross section whose mouth is provided with spraying nozzles arranged in gap between rollers. Rollers of roller table are provided with elongated journals of small diameter.

EFFECT: high intensity of cooling along cooling zone of shortened length.

14 cl, 7 dwg

FIELD: rolled stock production, namely uncoilers of aggregates for lengthwise and crosswise cutting strip.

SUBSTANCE: apparatus for centering strip coil in uncoiler includes carriages mounted at both sides from uncoiler axis with possibility of reciprocation motion normal relative to said axis along rails on stationary platens; cones for clamping and holding coil at centering it; units for rotating cones mounted in carriages; hydraulic drive for moving carriages having hydraulic cylinders whose rods are joined with carriages. Rod cavities and piston cavities of said hydraulic cylinders through four-way control distributors of hydraulic cylinders and through regulators of working liquid flow rate are connected by means of pipelines with pumping station. Rod and piston cavities of hydraulic cylinder are mutually communicated through two-position hydraulic distributor for centering. Said four-way control distributors of hydraulic cylinders for moving carriages are arranged lower than said hydraulic cylinders. Length L of rod cavities of hydraulic cylinders exceeds value of maximum stroke H of rods and it is determined according to relation: L ≥ D2H/(D2 - d2) where D - diameter of hydraulic cylinder; d - diameter of rod.

EFFECT: improved operational reliability of apparatus for centering coils in uncoiler, lowered quantity of scrap, reduced metal losses for rejection in cutting aggregates, enhanced efficiency of aggregates, decreased cost of apparatus, lowered expenses for reconstruction of existing cutting aggregates.

2 dwg

Screw rolling mill // 2291007

FIELD: rolled stock production, possibly rolling different-designation blanks in the same mill, for example drilling rods, track link pins, gun barrels, sleeves, balls and complex profile articles of different metals.

SUBSTANCE: rolling mill includes working stand with reversing drive of roll rotation; front and rear tables with mechanisms for moving blanks and for centering it. Front and rear tables are provided with stop-regulating mechanisms. Rear table has two slides mounted with possibility of motion across axis of rolling mill and supporting mounted mutually in parallel: in one slide -centering device and chute with box and in other slide - stop-regulation mechanism with hinged head, part of reversing roller table and quick-action stop-regulation mechanism.

EFFECT: lowered number of equipment units, maintaining persons, reduced area for mounting equipment, metal economy.

2 cl, 5 dwg

FIELD: rolled stock production, mainly coilers of continuous rolling mills and aggregates for slitting and crosswise cutting strips.

SUBSTANCE: apparatus includes drum mounted on shaft joined through reduction gear with driving electric motor; carriage with coil stripper; lifting table mounted on carriage; hydraulic drive for vertically moving table. Hydraulic drive includes hydraulic cylinder mounted in frame of carriage and having rod joined with lifting table. Rod cavity and piston cavity of hydraulic cylinder are connected through three-way distributor in which all dust are closed at neutral position of slide gate by means of mains pipelines with pump-accumulation station. In main pipeline connecting pump-accumulation station with said hydraulic distributor there is reduction valve. On pipeline connecting hydraulic distributor with piston cavity of lifting table there is pressure relay. In draining main pipeline between hydraulic distributor and tank of pump-accumulation station there is three-way hydraulic distributor with open central position. Apparatus is also provided with positioning cylinder whose piston cavity is connected through pipeline with three-way hydraulic distributor having open central position. Two position pickups are mounted on positioning cylinder; rod cavity of positioning cylinder is connected through pipeline with use of closing cock with compressed air source. Invention provides elimination of surface damages and axial shift of inner turn of strip at removing coil from coiler drum.

EFFECT: lowered quantity of tail end crop at finish working of strip in cutting aggregates, enhanced quality of ready sheet product, increased metal yield and efficiency of cutting aggregates.

1 dwg

FIELD: rolled stock production, namely manipulators of thick sheet rolling mills.

SUBSTANCE: manipulator includes in front or after rolling stand guiding liners arranged at both sides of rolling axis and secured to tie rods with possibility of motion across rolling axis. Liners are secured to tie rods at lateral gap and they are provided with mechanism for sensing efforts acting along liners. Said mechanism is in the form of mounted in liner eccentric pivots with rollers engaging with guides and mounted stationary along motion direction of liners. Eccentricity value of pivots is less than lateral gap of mounting liners in tie rods. Eccentric pivots with rollers are mounted in liner ends distal relative to stand.

EFFECT: enhanced operational reliability of manipulator.

2 cl, 2 dwg

The invention relates to rolling production, mainly to the aggregates of the longitudinal and transverse cutting of a wide strips

The invention relates to the field of rolling mills, in particular to equipment for centering the strip before rotary shear in units of longitudinal and transverse cutting of hot rolled strips

The invention relates to rolling production, mainly to decoilers installed on the units of the longitudinal and transverse cutting strip

FIELD: rolled stock production, namely manipulators of thick sheet rolling mills.

SUBSTANCE: manipulator includes in front or after rolling stand guiding liners arranged at both sides of rolling axis and secured to tie rods with possibility of motion across rolling axis. Liners are secured to tie rods at lateral gap and they are provided with mechanism for sensing efforts acting along liners. Said mechanism is in the form of mounted in liner eccentric pivots with rollers engaging with guides and mounted stationary along motion direction of liners. Eccentricity value of pivots is less than lateral gap of mounting liners in tie rods. Eccentric pivots with rollers are mounted in liner ends distal relative to stand.

EFFECT: enhanced operational reliability of manipulator.

2 cl, 2 dwg

FIELD: rolled stock production, mainly coilers of continuous rolling mills and aggregates for slitting and crosswise cutting strips.

SUBSTANCE: apparatus includes drum mounted on shaft joined through reduction gear with driving electric motor; carriage with coil stripper; lifting table mounted on carriage; hydraulic drive for vertically moving table. Hydraulic drive includes hydraulic cylinder mounted in frame of carriage and having rod joined with lifting table. Rod cavity and piston cavity of hydraulic cylinder are connected through three-way distributor in which all dust are closed at neutral position of slide gate by means of mains pipelines with pump-accumulation station. In main pipeline connecting pump-accumulation station with said hydraulic distributor there is reduction valve. On pipeline connecting hydraulic distributor with piston cavity of lifting table there is pressure relay. In draining main pipeline between hydraulic distributor and tank of pump-accumulation station there is three-way hydraulic distributor with open central position. Apparatus is also provided with positioning cylinder whose piston cavity is connected through pipeline with three-way hydraulic distributor having open central position. Two position pickups are mounted on positioning cylinder; rod cavity of positioning cylinder is connected through pipeline with use of closing cock with compressed air source. Invention provides elimination of surface damages and axial shift of inner turn of strip at removing coil from coiler drum.

EFFECT: lowered quantity of tail end crop at finish working of strip in cutting aggregates, enhanced quality of ready sheet product, increased metal yield and efficiency of cutting aggregates.

1 dwg

Screw rolling mill // 2291007

FIELD: rolled stock production, possibly rolling different-designation blanks in the same mill, for example drilling rods, track link pins, gun barrels, sleeves, balls and complex profile articles of different metals.

SUBSTANCE: rolling mill includes working stand with reversing drive of roll rotation; front and rear tables with mechanisms for moving blanks and for centering it. Front and rear tables are provided with stop-regulating mechanisms. Rear table has two slides mounted with possibility of motion across axis of rolling mill and supporting mounted mutually in parallel: in one slide -centering device and chute with box and in other slide - stop-regulation mechanism with hinged head, part of reversing roller table and quick-action stop-regulation mechanism.

EFFECT: lowered number of equipment units, maintaining persons, reduced area for mounting equipment, metal economy.

2 cl, 5 dwg

FIELD: rolled stock production, namely uncoilers of aggregates for lengthwise and crosswise cutting strip.

SUBSTANCE: apparatus for centering strip coil in uncoiler includes carriages mounted at both sides from uncoiler axis with possibility of reciprocation motion normal relative to said axis along rails on stationary platens; cones for clamping and holding coil at centering it; units for rotating cones mounted in carriages; hydraulic drive for moving carriages having hydraulic cylinders whose rods are joined with carriages. Rod cavities and piston cavities of said hydraulic cylinders through four-way control distributors of hydraulic cylinders and through regulators of working liquid flow rate are connected by means of pipelines with pumping station. Rod and piston cavities of hydraulic cylinder are mutually communicated through two-position hydraulic distributor for centering. Said four-way control distributors of hydraulic cylinders for moving carriages are arranged lower than said hydraulic cylinders. Length L of rod cavities of hydraulic cylinders exceeds value of maximum stroke H of rods and it is determined according to relation: L ≥ D2H/(D2 - d2) where D - diameter of hydraulic cylinder; d - diameter of rod.

EFFECT: improved operational reliability of apparatus for centering coils in uncoiler, lowered quantity of scrap, reduced metal losses for rejection in cutting aggregates, enhanced efficiency of aggregates, decreased cost of apparatus, lowered expenses for reconstruction of existing cutting aggregates.

2 dwg

FIELD: systems for increasing intensity of cooling at shortening length of cooling zone.

SUBSTANCE: in front of rolled blank between rollers of roller table devices for water spraying are mounted in fixed state. Over blank in carrying beams spraying collectors are mounted. Said carrying beams are secured to movable round tube arranged in parallel relative to lengthwise axis of roller table and provided with rotation drive and with water supply system. Water supply is centralized with control and monitoring system having valves for supplying or cutting off cooling water. Compact cooling zone with high cooling intensity is achieved due to maximally close arrangement of rollers of roller table one to other. Lower cooling collector is arranged slightly lower in space between rollers. Collectors have bear shaped cross section whose mouth is provided with spraying nozzles arranged in gap between rollers. Rollers of roller table are provided with elongated journals of small diameter.

EFFECT: high intensity of cooling along cooling zone of shortened length.

14 cl, 7 dwg

FIELD: metallurgy; mechanics.

SUBSTANCE: facility contains transport facility, stand with inclined ways and stop, mechanism of blanks clamp, containing of wedge-like grips, located angularly 120° to each other and pivotally connected to tractions with slider, cavity cylindrical package, inside of which it is movable located rod with firing-pin, connected with hydraulic actuator of its movement. Mechanism of blanks clamp is movable installed in inclined ways of stand. Stand is pivotally connected to link mechanism of its lifting - lowering. Rod with firing-pin is bounded to hydraulic actuator of its movement by means of quick-split sleeve. Rods, connecting wedge-like grips with slider, are outfitted by spherical hinge and connected to hydraulic actuator of clamp. Wedge-like grips are implemented as radial and changeable for each diameter of blank, and connection of it to inclined ways of stand is implemented in the form of "dovetail". Lifting - lowering mechanism is implemented in the form of two double-arm lever, bounded to each other by means of rod and regulation mechanism with electric drive.

EFFECT: invention provides implementation of accurate centering of blanks wide range of diameters and improved reliability and durability of facility.

2 cl, 4 dwg

FIELD: metallurgy.

SUBSTANCE: proposed method comprises lengthwise feed of rolled stock on roll bed. Rolled stock after finishing stands is carried to reel via laminar cooling zone arranged between finishing stands and reel. Note here that material is guided along and on both sides of laminar cooling zone by, at least, one lateral guide while position of lateral guides is set subject to position of cooler arranged under rolled stock and provided with screens for liquid coolant. Or, position of said cooler is set subject to position of lateral guides. Material may be guided along and on both sides of laminar cooling zone by several lateral guides.

EFFECT: higher efficiency and quality.

11 cl, 3 dwg

FIELD: process engineering.

SUBSTANCE: invention is intended for optimizing slab rolling in device comprising, at least, one furnace 2, at least, one slab processing device 3, 4 arranged in slab transfer direction F downstream of furnace 2, and, at least, one group 5 of rolling mill stands. Note here that said device incorporates appliances 6,7 to apply force to slab sides 8, 9 to make slab axis 10 shift across said direction F in compliance with axis 11 of aforesaid group 5. To optimise rolling by precise feed of slab 1 into group 5, first appliances 6 are used to apply lateral force thereto at first section 12 and by second appliances 7 at second section 13. Note here that said second section 13 in direction F is spaced from first section 12. Note also that first section 12 is located downstream, of furnace 2. Note that second section 12 is arranged upstream of, inside or downstream, of, at least, one processing device 3, 4. Proposed device comprises appropriate equipment.

EFFECT: optimised forming.

32 cl, 7 dwg

Strip guide // 2499642

FIELD: process engineering.

SUBSTANCE: invention is intended for accurate orientation of strip edge and can be used in transfer with tension of moving thin metal strip in its rolling, cutting, heat treatment, coating, coiling, etc. Proposed device comprises bed and idle roller secured at rotary rocker installed at said bed to turn ion the plane inclined to strip motion plane. Self-alignment of edge is ensured by mounting guide disc on one side of idle roller at spherical bearing. Note here that said roller is turned in the strip motion plane so that its side whereat guide disc is secured is shifted towards direction of motion.

EFFECT: self-aligned preset direction of strip edge.

3 dwg

Modular guide // 2500495

FIELD: process engineering.

SUBSTANCE: invention relates to guide for metal forming machine 1 composed of lengthwise guides 3a, 3b to be located no both sides 2a, 2b of the material. Note here that at least one lengthwise guide 3a, 3b of at least one mount 4 can be forced to material 1. Straight material feed path and reduced wear of guides are ensured by making at least one lengthwise guide 3a, 3b shifting along crosswise guide beam 9. Drive chamber 7 is integrated into said transverse guide beam 9. Piston 6 is fitted inside said chamber 7 to reciprocate therein and rigidly coupled with lengthwise guide 3a, 3b. Transverse guide beam 9 features cylindrical shape. Note also that drive chamber 7 is composed of a cavity at transverse beam end.

EFFECT: modular guide.

12 cl, 2 dwg

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