WO2022217716A1 - 一种轧制设备及轧制方法 - Google Patents

一种轧制设备及轧制方法 Download PDF

Info

Publication number
WO2022217716A1
WO2022217716A1 PCT/CN2021/097719 CN2021097719W WO2022217716A1 WO 2022217716 A1 WO2022217716 A1 WO 2022217716A1 CN 2021097719 W CN2021097719 W CN 2021097719W WO 2022217716 A1 WO2022217716 A1 WO 2022217716A1
Authority
WO
WIPO (PCT)
Prior art keywords
roll
rolling
rolls
diameter
foil
Prior art date
Application number
PCT/CN2021/097719
Other languages
English (en)
French (fr)
Inventor
刘洪勤
马力
徐继玲
李毅
Original Assignee
上海五星铜业股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海五星铜业股份有限公司 filed Critical 上海五星铜业股份有限公司
Publication of WO2022217716A1 publication Critical patent/WO2022217716A1/zh

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/40—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 foils which present special problems, e.g. because of thinness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B13/023—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally the axis of the rolls being other than perpendicular to the direction of movement of the product, e.g. cross-rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B21B27/021—Rolls for sheets or strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/48—Tension control; Compression control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/14—Guiding, positioning or aligning work
    • B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
    • 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
    • B21B45/0269—Cleaning
    • B21B45/0275—Cleaning devices
    • B21B45/0278—Cleaning devices removing liquids
    • B21B45/0284—Cleaning devices removing liquids removing lubricants

Definitions

  • the invention relates to the technical field of rolling mills, in particular to a rolling equipment, and also to a rolling method, which is used for high-precision rolling of wide-width foils.
  • the rolling technology for wide and thick foils is basically mature, but there are still many technical obstacles in the rolling technology of high-precision wide-width foils.
  • the plate shape can still be corrected by tension leveling or other flattening means.
  • the shape correction method can only be controlled by rolling.
  • foils with high deformation resistance such as copper, copper alloys, and stainless steel, it is difficult to achieve stable production due to the restriction of the shape control ability.
  • the thinnest rolling thickness that can be achieved by mass production of pure copper foil is 0.006mm and the maximum width is 650mm.
  • the minimum rolling thickness that can be achieved by mass production of stainless steel foil is 0.02mm and the maximum width is 600mm.
  • the rolled flat shape is not very good, the main reason is the uneven distribution of tension in the cross section of the foil. The wider the foil, the greater the unevenness of tension, and the more difficult to control the shape of the plate. This is the current bottleneck restricting the development of the foil to a wider, thinner and more ideal shape, and it is also difficult to solve in the industry for a long time. technical difficulties.
  • the rolling of foils is achieved by multi-roll mills.
  • the upper and lower work rolls of the rolling mill are designed with equal diameters, and the upper and lower half rolls of the rolling mill are also symmetrically designed, ranging from two-high mills to twenty-high mills.
  • the rolling mill in the figure is a six-high rolling mill with vertical symmetry.
  • the foil 3 is formed by the upper work roll 1 and the lower work roll 2 horizontally along the rolling center line 4 after being stretched by the adjusting roll 5 in front of the machine. In the roll gap, it is then stretched by the rear adjustment roll 5, and then flows out horizontally along the rolling center line 4 to achieve uniform deformation of the cross section of the rolled material.
  • Such a design is beneficial to the stability of the center layer of the material to be rolled and to the exchange of rolls, but the disadvantages are that the number of rolls is large, the structure is complex, the installation accuracy of each roll is high, and the workload of adjustment and maintenance is large. These factors all increase the operating cost of rolling.
  • the adjustment rollers 5 in front of and behind the machine are also designed with equal diameters, which is to simplify the structure and facilitate the interchange between the adjustment rollers 5 .
  • the main function of the adjustment roller 5 is to flatten, and the secondary function is to block oil.
  • the diameter of the work roll has an impact on the rolling of the foil.
  • the length of the bite arc of the small-diameter work roll to the foil 3 is short, which is not conducive to uniformly bringing the lubricating medium into the roll gap, resulting in uneven thickness of the oil film in the rolling arc area.
  • the large-diameter work roll on the right side of the figure has a large diameter, high rigidity, a small bite angle to the foil 3, and a small lateral component of the rolling force, so its lateral bending tendency is small.
  • the bite arc length of the large-diameter work rolls to the foil 3 is longer, which is conducive to bringing the lubricating medium into the roll gap uniformly, so that the thickness of the oil film in the rolling arc area is more uniform.
  • the diameter of the work roll must be small enough (usually 25-100mm in diameter) to obtain a large reduction in rolling, and the plate shape at this time will be very difficult to control , which is also the current bottleneck restricting the rolling of high-precision and wide-width foils.
  • the three basic conditions for stable rolling of a rolling mill are roll accuracy, lubrication conditions and tension accuracy. From the above, it can be seen that the multi-roll system structure of the current rolling mill has an impact on the accuracy of the roll system, and the equal-diameter work rolls and equal-diameter adjustment rolls of the current rolling mill have an impact on the lubrication conditions.
  • the tension accuracy has an impact, and these are the technical bottlenecks that restrict the development of foil rolling in the direction of high precision and wide width.
  • the present invention discloses a rolling equipment and a rolling method, the purpose of which is to solve or improve the problems raised in the background technology, and to break the technical bottleneck restricting the rolling of high-precision and wide-width foils.
  • a rolling equipment for foil rolling characterized in that it comprises a rolling mill and a set of adjusting rolls;
  • the rolls of the rolling mill are bounded by the rolling center line, and are divided into an upper half roll system and a lower half roll system. Compared with the other half roll system, the number of rolls in one half roll system is smaller, and the number of rolls in the work roll is smaller than that of the other half roll system. The diameter is larger than the roll diameter of the work rolls in the other half of the roll system;
  • the adjusting roll group includes a flattening roll and at least one oil blocking roll, the flattening roll and the oil blocking roll are arranged on the same side with respect to the roll gap of the rolling mill, and the roll diameter of the flattening roll close to the roll gap of the rolling mill is larger than that of the roll far away from the rolling mill.
  • the roll diameter of the oil deflector with the slit includes a flattening roll and at least one oil blocking roll, the flattening roll and the oil blocking roll are arranged on the same side with respect to the roll gap of the rolling mill, and the roll diameter of the flattening roll close to the roll gap of the rolling mill is larger than that of the roll far away from the rolling mill.
  • the adjustment roll group is divided into two groups, which are respectively arranged on the inlet side and the outlet side of the rolling mill.
  • the technical solution is further improved.
  • the foil is wrapped on the roll surface of the work roll with a larger roll diameter to form the cladding arc on the inlet side and the cladding on the outlet side. arc.
  • the cladding angle of the cladding arc on the inlet side and the cladding arc on the outlet side is ⁇ , 0° ⁇ 60°
  • the roll diameter of the large-diameter work roll is 1.5-5 times that of the small-diameter work roll; the roll diameter of the flattening roll is 1.5-3.5 times the roll diameter of the oil retaining roll.
  • the technical solution is further improved, and the number of the rolls in the half roll system with fewer rolls is three, and the three rolls are arranged in a straight line or a triangle.
  • the technical solution is further improved, and the number of the rolls in the half roll system with fewer rolls is four, which are arranged in a T-shape.
  • Half of the rolls with more rolls have six or ten rolls in a fan-shaped arrangement.
  • a rolling method is characterized in that: using the rolling equipment, by adjusting the height of the flattening roll, the foil is wrapped on the roll surface of the work roll with a larger roll diameter to form a wrapping arc.
  • the present invention has the following beneficial effects:
  • the invention enables the foil to form a wrapping arc on the work roll with a larger diameter, and the tension is evenly distributed on the cross-sections of the wrapping arc on the inlet side and the wrapping arc on the outlet side through the backing of the foil by the work roll.
  • the generation of defects such as waves and wrinkles is eliminated in the early stage of rolling, and the plate shape is stabilized in the later stage of rolling, which realizes the uniform rolling of the foil, and breaks through the restriction of the foil to the better.
  • the bottleneck of the development in the direction of wider, thinner and more ideal plate shape solves the technical problems that have been difficult to solve in the industry for a long time, and has great application value and economic value.
  • the rolling mill of the present invention adopts the rolling scheme of unequal diameter work rolls, which improves the lubrication conditions of rolling, is generally beneficial to the thinning of the foil, and is also conducive to obtaining a better plate shape. technical effects that cannot be achieved.
  • the present invention sacrifices a part of the thinning amount of the foil and slightly increases the number of rolling passes (the number of reciprocating rolling), it is important to keep the shape of the sheet stable and avoid or reduce the increase in width due to The occurrence of rolling defects caused by this is of great significance for the high-precision rolling of wide-width foils.
  • the present invention is undoubtedly a technological breakthrough for the rolling of high-precision and wide-width foils, which have been trapped in technical bottlenecks for a long time.
  • the rolling mill of the present invention adopts the asymmetric structure of the upper and lower rolls, and the upper and lower rolls are supported by single and double busbars, respectively, thereby increasing the rigidity of the upper and lower work rolls equally, and at the same time increasing the stability of at least one work roll. , while the bending effect of the other work roll is not hindered by it.
  • the invention reduces the number of rolls, simplifies the installation structure of the rolls on the rolling mill, helps to improve the precision of the roll system, and facilitates the adjustment and maintenance of the rolls.
  • the unequal diameter adjusting roller set of the present invention takes into account both the flattening effect and the oil blocking effect, and the oil blocking roller with a smaller roller diameter has a better oil blocking effect, which is conducive to squeezing out excess lubricating oil and improving production efficiency;
  • the large flattening roller has a good flattening effect on the foil, which can reduce the original defects of the foil, so that the foil can enter the roll gap in a flat state, which provides a good basic condition for rolling.
  • FIG. 1 is a schematic diagram of the structure of the existing rolling equipment.
  • Figure 2 is a schematic diagram of the comparison of large and small diameter work rolls during rolling.
  • FIG. 3 is a schematic structural diagram of the invention in Embodiment 1.
  • FIG. 3 is a schematic structural diagram of the invention in Embodiment 1.
  • Figure 4 is a comparison diagram of the extrusion effect of large and small diameter work rolls on the oil layer.
  • Figure 5 is the force analysis diagram of a volume element on the cladding arc.
  • Figure 6 is the force analysis diagram of a volume unit when the foil is in the state of no backing.
  • Figure 7 is the force analysis diagram of a volume unit when the foil is in the state of backing.
  • Fig. 8 is a flow velocity distribution diagram of the upper and lower layers of the foil in the calendering zone.
  • Fig. 9 is a diagram showing the distribution of tension in the thickness direction of a volume element on the cladding arc on the inlet side.
  • FIG. 10 is a schematic structural diagram of the invention in Embodiment 2.
  • FIG. 10 is a schematic structural diagram of the invention in Embodiment 2.
  • FIG. 11 is a schematic structural diagram of the invention in Embodiment 3.
  • FIG. 11 is a schematic structural diagram of the invention in Embodiment 3.
  • FIG. 12 is a schematic structural diagram of the invention in Embodiment 4.
  • FIG. 12 is a schematic structural diagram of the invention in Embodiment 4.
  • FIG. 13 is a schematic structural diagram of the invention in Embodiment 5.
  • FIG. 13 is a schematic structural diagram of the invention in Embodiment 5.
  • FIG. 14 is a schematic structural diagram of the invention in Embodiment 6.
  • FIG. 14 is a schematic structural diagram of the invention in Embodiment 6.
  • a rolling equipment is used for high-precision rolling of copper foil with a thickness of 0.1 mm and a width of 1000 mm.
  • the rolling equipment includes a rolling mill and a set of adjusting rolls, which will be described in detail below.
  • the rolling mill used is a nine-high rolling mill.
  • the rolls of the rolling mill are bounded by the rolling center line 4 and are divided into an upper half-roll system and a lower half-roll system, wherein the lower half-roll system consists of a lower work roll 2 It is composed of two lower oblique pressure support rollers 12 , the lower oblique pressure support roller 12 is used to press the lower work roll 2 , and the roll diameter of the lower oblique pressure support roll 12 is larger than that of the lower work roll 2 .
  • the upper half roll system is composed of one upper work roll 1 and five upper oblique pressing support rolls 10 .
  • the roll diameter of the upper work roll 1 in the upper half roll system is 100mm
  • the roll diameter of the lower work roll 1 in the lower half roll system is 200mm
  • the roll diameter of the lower work roll 2 is twice the roll diameter of the upper work roll 1 .
  • the two upper oblique pressing support rollers 10 with the largest roller diameter on both sides of the upper half roller system are active rollers (the arrow lines in the figure are solid lines, the same below), and the remaining upper oblique pressing supporting rollers 10
  • the upper work roll 1 is a driven roll (the arrow line in the figure is a dotted line, the same below).
  • the two lower oblique pressing support rolls 12 located in the lower half roll system are driving rolls, and the lower working rolls 2 are driven rolls.
  • the linear velocity of the roll surfaces of the upper work roll 1 and the lower work roll 2 should be basically the same during rolling. Since the roll diameters of the driving rolls in the upper and lower roll systems are different, the driving rolls in the upper and lower roll systems should have different rotational speeds. With the development of motor control, the variable frequency motor using the frequency converter has been able to realize the adjustable speed, and the servo motor using the driver has achieved high power. At different rotation speeds, the roll surfaces of the upper work roll 1 and the lower work roll 2 have the same linear speed.
  • the lower half-roll system has three rolls, the two lower oblique pressing support rolls 12 and the lower work roll 2 are arranged in a triangular arrangement, and the two lower oblique pressing supporting rolls 12 form the Compared with the single bus support in Figure 1, the double bus support has much better stability.
  • the roll diameter of the two lower oblique pressure backup rolls 12 is larger than the roll diameter of the lower work roll 2, and the roll diameter of the lower work roll 2 is twice as large as that of the upper work roll 1. Therefore, although the lower half roll system has There are only three rolls, but their layout is beneficial to increase the roll diameter of the lower oblique pressing support roll 12, so the overall rigidity of the lower half roll system is still large enough.
  • the upper half-roll system has six rolls, including one upper work roll and five upper biased backup rolls 10 .
  • the five upper diagonal pressure support rolls 10 are divided into inner and outer layers.
  • the roll diameter of the two upper diagonal pressure support rolls 10 in the inner layer is larger than that of the upper work roll 1, but smaller than the roll diameter of the outer three upper diagonal pressure support rolls 10. Since the roll diameter of the upper work roll 1 is the smallest, the roll diameter of the two upper diagonal pressure support rolls 10 in the inner layer cannot be made large. Therefore, three upper diagonal pressure support rolls 10 in the outer layer need to be arranged to increase the overall rigidity.
  • the six rolls of the upper half roll system are arranged in a fan-shaped stacking arrangement as a whole.
  • the two upper oblique pressure support rolls 10 located in the inner layer form a double busbar support for the upper work roll 1, and the three upper oblique pressure support rolls 10 located in the outer layer support the inner layer.
  • the two upper slanting support rollers 10 form a double generatrix support. Therefore, the stability and rigidity of the upper half roller system are also sufficiently large, which is equal to the rigidity of the lower half roller system.
  • the asymmetric structure of the upper and lower rolls has the beneficial effect of reducing the number of rolls in the lower half of the rolls, simplifying the installation structure of the rolls on the rolling mill, and facilitating the adjustment of the rolls on the premise of ensuring the same rigidity and stability. And maintenance.
  • the adjustment roll sets on the inlet side and the outlet side both include a flattening roll 6 and an oil blocking roll 7.
  • the flattening roll 6 and the oil blocking roll 7 are arranged on the same side with respect to the roll gap of the rolling mill.
  • the roll diameter of the flattening roll 6 is larger than the roll diameter of the oil retaining roll 7 away from the roll gap of the rolling mill.
  • the wrapping angles of the small-diameter work rolls and the large-diameter work rolls to the foil are equal. It can be compared from the figure that the extrusion angle ⁇ of the small-diameter work roll located in the upper part of the figure to the oil layer 8 is larger, and in the same case, the extrusion angle ⁇ of the large-diameter work roll located in the lower part of the figure to the oil layer 8 smaller. The smaller the extrusion angle, the more likely the oil wedge effect will occur, which lifts the foil from the roll surface and allows the lubricating oil to enter the other side of the roll surface.
  • the diameter of the oil blocking roller 7 is smaller, the larger the extrusion angle of the lubricating oil, the less likely the oil wedge effect will be generated, and the better the oil blocking effect will be, which is conducive to squeezing out excess lubricating oil, not only reducing the Useless fuel consumption and oil pollution in the working environment are also conducive to improving the running speed of the rolling mill unit and improving production efficiency. It can also be known that under the same wrapping angle, the foil wrapped on the small diameter work roll has a small arc length and a large curvature, which is not conducive to the flattening of the foil.
  • the foil covered on the large-diameter work roll has a long arc and small curvature, which is beneficial to the flattening of the foil. From this, it can be inferred that in Fig. 3, the unequal diameter adjusting roller set takes into account both the flattening effect and the oil blocking effect, and the oil blocking roller 7 with a smaller roller diameter has a better oil blocking effect, which is conducive to squeezing out excess lubricating oil. , to provide good oil film conditions for rolling; the flattening roller 6 with a larger diameter has a good flattening effect on the foil, which can reduce the original defects of the foil, such as waves and wrinkles, so that the foil can enter in a flat state. inside the roll gap.
  • the present invention provides a rolling method, the core of which is that the foil material is wrapped on the roll surface of the lower work roll by adjusting the height of the flattening rolls 6 on both sides of the roll gap of the rolling mill. , forming the cladding arc on the inlet side and the cladding arc on the outlet side, as shown in Figure 3.
  • the back support of the cladding arc on the entrance side and the cladding arc on the exit side is faced by the lower work roll 2, and the front tension and the back tension are evenly distributed on the cross section of the foil.
  • the principle is as follows:
  • the foil 3 enters the roll gap from the left side, the neutral point P is in the rolling arc, and on the left side of the neutral point P, the linear velocity of the work roll surface is greater than that of the foil material 3
  • the linear speed of entering the roll gap which produces a speed difference and friction force F3, that is, the lower work roll 2 drives the foil 3 to rotate along the cladding arc on the entry side, just like a belt drive.
  • a volume element 9 is arbitrarily selected on the cladding arc on the inlet side. Due to the action of friction force F3, the proximal tension F2 acting on this volume element 9 is smaller than its distal tension F1.
  • the proximal tension and distal tension expressed here are Tension is relative to the distance from the roll gap.
  • the magnitude of the distal tension acting on this volume unit 9 is equal to F2, and the magnitude of its proximal tension is less than F2, and so on. From this, it can be concluded that the frictional force F3 increases cumulatively from point A (the starting point of the cladding arc on the inlet side) to point B (the end point of the cladding arc on the inlet side).
  • the proximal tension F2 received gradually decreases from point A to point B.
  • a volume unit 9 is arbitrarily selected on the foil 3. Due to the unevenness of tension, the tension on both sides of the volume unit 9C and D is greater than the tension in the middle E part, and the E part rises to form ripples.
  • the proximal tension F2 is equal to the distal tension F1.
  • the volume unit 9 shrinks inward in the width direction, and its internal force F4 is negative.
  • the lower work roll 2 applies a backing force T to it, so that the volume unit 9 is bent and deformed.
  • the internal force F4 acting on the width direction of the volume unit 9 changes from negative to positive and gradually increases.
  • the increase of the internal force F4 causes the volume unit 9 to extend outward in the width direction, just like the loose elastic band widens in the width direction, thereby flattening the corrugated part of the foil 3 .
  • the proximal tension acting on the two sides of the volume unit 9C and D is rapidly reduced, and the two sides of C and D are extended outward in the width direction, so that the middle E part is in contact with the roll surface of the lower work roll 2 .
  • the proximal tension of the middle part of the volume unit 9 is correspondingly increased, thereby realizing the uniform distribution of the proximal tension F2 on the cross section of the volume unit 9 .
  • the proximal tension F2 in the roll gap calendering zone is the pre-rolling tension, where the pre-tension is the smallest, and the pre-tension distributed on the cross-section here is the most uniform.
  • the larger the cladding angle of the cladding arc on the inlet side the smaller the front tension in the calendering area of the roll gap, and the more uniform the front tension is distributed.
  • the larger front tension is beneficial to the control of the flat shape.
  • the existence of the cladding arc on the inlet side makes the front tension evenly distributed on the cross section of the foil 3, but part of the front tension is lost, so the coiler or the flattening roller 6 is required to increase the appropriate front tension to the foil 3 to compensation for losses.
  • the tension at the front end of the cladding arc on the inlet side can be increased to 50-60% of the yield strength of the material, and the foil can be thinned by taking full advantage of the thinning effect of the tension on the foil.
  • the rolling process of the foil 3 by the work rolls can be regarded as the repeated thinning and widening process of the foil 3.
  • the coiler and the flattening roll 6 It can be regarded as a process of repeated stretching and narrowing of the foil, so appropriately increasing the front tension of the foil is more conducive to the thinning of the foil and the control of the plate shape.
  • the foil 3 when the foil 3 enters the calendering area of the roll gap, the foil 3 is squeezed by the work rolls and begins to deform. Due to the existence of the cladding arc on the entrance side, the deformation of the upper layer of the foil 3 is greater than that of the lower layer. , the linear velocity of the particle at the neutral point P of the upper plate surface is consistent with the linear velocity of the upper work roll 1 roll surface, while the lower plate surface lags, and the linear velocity of the particle at the point E is the same as that of the lower work roll 2 roll surface. The line speed is consistent, so that the outflow speed of the upper layer of foil 3 is greater than the outflow speed of the lower layer of foil 3.
  • the foil In the absence of post tension, the foil will curl 5 to the side of the lower work roll 2, which indicates that there is a calendering zone. layer shift phenomenon.
  • the delamination phenomenon causes the neutral surface of the foil material 3 to be deviated to the lower layer, and the foil material 3 will be curled and deformed.
  • the curling deformation is more obvious on the foil with larger plate thickness, but it is not obvious on the foil with a thickness of less than 0.15mm, which can be corrected by subsequent processes such as flattening and straightening.
  • the existence of curling deformation is not allowed, so it can be solved by changing the speed of the work roll.
  • the roll surface linear velocity of the lower work roll 2 can be increased, or reduced
  • the linear velocity of the roll surface of the upper work roll 1 makes the outflow speed of the upper work roll side plate surface equal to the outflow speed of the lower work roll side plate surface, which can eliminate the generation of curling deformation.
  • the tape foil 5 flowing out from the roll gap is wrapped on the lower work roll 2 to form a wrapping arc on the exit side. Since the linear velocity V of the belt foil 5 flowing out is greater than the linear velocity of the roll surface of the lower work roll 2, the lower work roll 2 produces a reverse friction force F4 on any volume unit 9 on the cladding arc on the exit side, and the volume unit 9 also generates a reverse friction force F4. There is a proximal tension F5 and a distal tension F6. In the cladding arc on the outlet side, the friction force F4 increases gradually from point M to point N, and similarly, the distal tension F6 also increases accordingly.
  • the distal tension F6 reaches the maximum at the N point, and the distal tension F6 here is the post tension.
  • the post tension can not only prevent the strip foil 5 from deviating, but also facilitate the high-speed rolling of the strip foil 5 . What is particularly important is that after the belt foil 5 flows out of the roll gap, the back tension it receives gradually increases. Based on the same mechanism, the back tension is the smallest at the exit of the roll gap, and the back tension distribution on the cross section here is Also the most uniform, which is important for the control of the 5-sheet shape with foil.
  • the present invention realizes the tension at the exit of the roll gap through the wrapping of the belt foil 5 on the roll surface of the lower work roll 2. Evenly distributed, in the early stage of forming with foil rolling, the generation of defects such as waves and wrinkles can be eliminated, so that a better plate shape can be obtained. As the volume unit 9 continues to flow out, the distal tension F6 acting on the cross section of the volume unit 9 gradually increases, and the uneven tension trend begins to be obvious. The foil 5 is no longer suspended and shakes, and the plate shape is stabilized during the critical forming period of foil rolling, thereby preventing defects such as waves and wrinkles due to uneven tension of the plate shape.
  • the diameter of the upper work roll 1 is small, the rolling arc is short, and the amount of indentation to the foil 3 is large, which is beneficial to the thinning of the foil 3 and can reduce the total rolling time. times.
  • the rigidity of the upper work roll 1 is small, the lateral bending tendency is large, and it is not conducive to uniformly bringing the lubricating medium into the roll gap, resulting in a plate-shaped defect on the upper plate surface of the foil material 3 .
  • the lower work roll 2 has high rigidity, small lateral bending tendency, long calendering arc, and is conducive to uniformly bringing the lubricating medium into the roll gap, so that the lower plate surface of the foil 3 can obtain a better shape.
  • the roll diameter of the lower work roll 2 is large, and the pressing amount to the foil material 3 is small, which is not conducive to the thinning of the foil material 3 .
  • the present invention combines the advantages of large-diameter work rolls and small-diameter work rolls: compared with the traditional work rolls with the same diameter as the upper work roll 1, the increase in the roll diameter of the lower work roll 2 is conducive to obtaining more Compared with the traditional work roll with the same diameter as the lower work roll 2, the reduction of the roll diameter of the upper work roll 1 will increase the indentation of the foil 3, which is beneficial to the thinning of the foil 3.
  • the present invention also concentrates the shortcomings of the large-diameter work rolls and the small-diameter work rolls: compared with the traditional work rolls with the same diameter as the upper work roll 1, the increase of the roll diameter of the lower work roll 2 is not conducive to the foil.
  • Thinning of material 3 Compared with the traditional work roll with the same diameter as the lower work roll 2, the reduction of the roll diameter of the upper work roll 1 is not conducive to obtaining a better plate shape. However, it is worth noting that the lower plate surface of the foil 3 rolled by the lower work roll 2 has a better shape, while the upper plate surface of the foil 3 rolled by the upper work roll 1 has a poor shape, but The lower plate with better plate shape acts as a restraint on the upper plate surface, which is beneficial to the stability of the plate shape as a whole.
  • the small-diameter upper work roll 1 is used to thin the foil
  • the large-diameter lower work roll 2 is used to improve the rolling lubrication conditions, so that the foil can obtain a better shape, and the Thinning and shape requirements of foils.
  • the problem of poor rigidity caused by the reduction of the roll diameter of the upper work roll 1 is a secondary problem, which can be solved by pressing the five upper oblique pressing support rolls 10 to increase the rigidity. Therefore, in general, the advantages of using the rolling scheme of unequal diameter work rolls outweigh the disadvantages.
  • Example 2 differs from Example 1 in that it is used for rolling a copper foil material with a thickness of 0.03 mm and a width of 800 mm. Due to the reduced thickness of the copper foil, it is necessary to use upper work rolls with smaller roll diameters.
  • the roll diameter of the upper work roll 1 in the upper half roll system is 60 mm
  • the structure of the lower half roll system remains unchanged
  • the roll diameter of the lower work roll 2 in the lower half roll system is still 200 mm
  • the lower work roll 2 has a roll diameter of 200 mm.
  • the roll diameter of the roll 2 is about 3.3 times the roll diameter of the upper work roll 1 .
  • the rolling mill used is a thirteen-high rolling mill.
  • the upper oblique pressing support rollers 10 are arranged in a fan-shaped stack, the nine upper oblique pressing supporting rollers 10 are divided into three layers, the inner layer has two upper oblique pressing supporting rollers 10, and the middle layer and the outer layer each have three upper oblique pressing supporting rollers 10, each of which is divided into three layers.
  • the roll diameter of the upper diagonal pressure support roll 10 increases sequentially from the inside to the outside.
  • the two upper oblique pressure support rollers 10 located in the inner layer form a double busbar support for the upper work roll 1
  • the three upper oblique pressure support rollers 10 located in the middle layer form a double busbar support for the two upper oblique pressure support rollers 10 in the inner layer.
  • the three upper oblique pressing support rollers 10 located in the outer layer in turn form a double busbar support for the three upper oblique pressing supporting rollers 10 in the middle layer. Therefore, the stability and rigidity of the upper half roll system are also sufficiently large, and are still equal to the rigidity of the lower half roll system.
  • the ratio of the roll diameter of the lower work roll 2 to the upper work roll 1 in this embodiment is increased, the upper work roll 1 is more conducive to thinning the foil, and the lower work roll 2 is more conducive to maintaining
  • the stability of the plate shape has a better implementation effect than that of Example 1.
  • Embodiments 1 and 2 the upper and lower work rolls are supported by double bus bars, and the stability is good. Correspondingly, the bending effect of the work rolls will be poor. Therefore, it is necessary to continue to improve the technical solution.
  • the rolling mill is a nine-high rolling mill.
  • the upper half roll system of the rolling mill is the same as the upper half roll system in Example 1, the number of rolls in the lower half roll system is still three, and the roll diameter of the lower work roll 2 is still the roll diameter of the upper work roll 1. 2 times the diameter.
  • the lower half roll system consists of a lower work roll 2 arranged in a straight line, a lower direct pressure support roll 11 with a small roll diameter and a lower direct pressure support roll 11 with a large roll diameter.
  • the lower direct pressure support roll 11 with small roll diameter is used to press the lower work roll 2
  • the lower direct pressure support roll 11 with large roll diameter is used to abut against the lower direct pressure support roll 11 with small roll diameter.
  • the flattening roll 6 can be brought closer to the work rolls because the frame of the lower roll half relaxes the angular restrictions on the entry or exit of the foil into or out of the roll gap.
  • three oil blocking rollers 7 are provided on both sides of the roll gap.
  • the purpose of bending the work roll is to solve the problem of the crown of the rolled strip foil and make it flat.
  • the roll diameter of the upper work roll 1 is small and the rigidity is poor, and it is difficult to control the bending of the upper work roll 1 on the contrary.
  • the lower work roll 2 has a moderate roll diameter and moderate rigidity, and when the lower work roll 2 is bent, its convexity reduction is easy to control.
  • the two lower direct pressure support rolls 11 of large and small diameters are used to increase the rigidity of the lower work roll 2, but only a single busbar supports the lower work roll 2, and does not limit the bending effect of the lower work roll 2.
  • the upper half roll system in this embodiment ensures the rigidity of the upper work roll 1 , and the upper half roll system does not hinder the bending effect of the lower work roll 2 on the premise of ensuring equal rigidity.
  • the rolling mill in this embodiment is a thirteen-high rolling mill, with ten rolls in the upper half roll and three rolls in the lower half roll.
  • the structure of the rolling mill is a combination of the upper half roll system structure in Example 2 and the lower half roll system structure in Example 3.
  • the roll diameter of the lower work roll 2 is 3.5 times that of the upper work roll 1.
  • the upper work roll 1 is more conducive to the thinning of the foil 3
  • the lower work roll 2 is more conducive to the thinning of the plate shape. Stablize.
  • the lower direct pressure support roller 11 with the large diameter at the lower end is supported by a single generatrix for the lower direct pressure support roller 11 with the small diameter at the middle, and the lower direct pressure support roller with the small diameter at the middle is supported by a single generatrix.
  • the stability of the support roller 11 is not good, so it is necessary to continue to improve the technical solution.
  • the rolling mill in this embodiment is a ten-high rolling mill, with six rolls in the upper half roll and four rolls in the lower half roll.
  • the upper half roll system of the rolling mill is the same as that in Example 1, and the roll diameter of the lower work roll 2 is still twice that of the upper work roll 1.
  • the lower half roll system is composed of a lower work roll 2 , a lower straight pressure support roll 11 and two lower oblique pressure support rolls 12 .
  • the lower direct pressure support roller 11 is used for pressing the lower work roll 2
  • the two lower oblique pressure support rollers 12 are used for abutting the lower direct pressure support roller 11 .
  • the roll diameter of the lower straight pressure backup roll 11 is larger than the roll diameter of the lower work roll 2
  • the roll diameter of the lower oblique pressure backup roll 12 is larger than the roll diameter of the lower straight pressure support roll 11 .
  • the two lower oblique pressure support rollers 12 at the lower end play the role of double generatrix support for the lower direct pressure support roller 11 located in the middle, so that the lower direct pressure support roller 11 is stable, thereby ensuring that the lower work rolls are opposite to each other. 2 The stability of the support.
  • the rolling mill in this embodiment is a fourteen-high rolling mill, with ten rolls in the upper half roll and four rolls in the lower half roll.
  • the structure of this rolling mill can be regarded as the combination of the upper half roll structure in Example 2 and the lower half roll structure in Example 5.
  • the roll diameter of the lower work roll 2 is 4 times that of the upper work roll 1.
  • the upper work roll 1 is more conducive to the thinning of the foil 3, and the lower work roll 2 is more conducive to the thinning of the plate shape. Stablize.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Metal Rolling (AREA)

Abstract

一种轧制设备，包括轧机和调整辊组，轧机采用不对称的辊系，调整辊组采用不等径的挡油辊（7）和展平辊（6）。一种轧制方法，通过调整展平辊的高低，使箔材包覆在辊径较大的工作辊的辊面上形成包覆弧，通过工作辊对箔材的背撑，使张力在箔材的横截面上均匀分布，在轧制关键的成型初期就消除缺陷的产生，并在轧制成型的后期使板形得以稳定，以实现对宽幅箔材的高精轧制。轧机采用不对称的辊系减少了轧辊的数量，有利于提高辊系精度、便于轧辊的调整和维护。

Description

一种轧制设备及轧制方法 技术领域
本发明涉及轧机技术领域，尤其是涉及一种轧制设备，还涉及一种轧制方法，用于宽幅箔材的高精轧制。
背景技术
随着科技产业的进步，市场对高精宽幅箔材的需求越来越急迫。在当前的技术背景下，对于宽幅厚箔材来说，其轧制技术已基本成熟，但在高精宽幅箔材的轧制技术方面仍面临诸多的技术障碍。对于较厚的箔材，轧制后即便存在板形缺陷，仍可以通过拉矫或其他平整手段来精整修正板形，而对于箔材，尤其是厚度极小的箔材，因缺乏后续的板形修正手段，只能依赖轧制来控制。特别是对于铜及铜合金、不锈钢等变形抗力较大的箔材，受板形控制能力的制约，难以实现稳定的生产。据已知信息，目前纯铜箔量产所能达到的最薄轧制厚度为0.006mm、最大宽度为650mm，不锈钢箔量产所能达到的最小轧制厚度为0.02mm、最大宽度为600mm，而且轧制的板形都不是很好，其主要原因在于张力在箔材横截面上分布的不均匀性。箔材越宽，张力的不均匀度越大，板形就越难控制，这是目前制约箔材向更宽、更薄、更理想板形方向上发展的瓶颈，也是行业内长期以来难以解决的技术难题。
目前，对于箔材的轧制都是通过多辊轧机实现的。无论国内还是国外，轧机的上下工作辊都是等直径设计的，轧机的上半辊系和下半辊系也都是对称设计的，从两辊轧机到二十辊轧机都是如此。如图1所示，图中的轧机为上下对称的六辊轧机，箔材3由机前调整辊5前张后，沿轧制中心线4水平地进入上工作辊1和下工作辊2构成的辊缝中，然后由机后调整辊5后张后，再沿轧制中心线4水平地流出，以实现被轧材料横截面的均匀变形。这样的设计有利于被轧材料中心层的稳定，也有利于轧辊的互换，但是带来的不利因素是轧辊数量多，结构复杂，各轧辊的安装精度要求高，调整维护的工作量大，这些因素 都增加了轧制的运营成本。
此外，目前机前、机后的各调整辊5也是等直径设计的，这是为了简化结构，便于实现各调整辊5之间的互换。调整辊5的主要作用是展平，次要作用是挡油，调整辊5的辊径越大展平作用越好，挡油作用越差；调整辊5的辊径越小展平作用越差，挡油作用越好。这显然是个技术效果上的矛盾。
工作辊辊径的大小对箔材的轧制是有影响的，工作辊直径越小，越有利于箔材的轧薄，但是也带来了问题：如图2所示，图中左侧的小直径工作辊的直径小、刚度小，对箔材3的咬入角大，轧制力的侧向分力大，因此，其侧向弯曲倾向大。此外，小直径工作辊对箔材3的咬入弧长短，不利于润滑介质均匀带入辊缝，造成压延弧区油膜厚度的不均匀。这些因素导致压延弧面沿箔材3宽度方向的弧长波动性大，最终造成轧制板形产生缺陷。在相同的条件下，图中右侧的大直径工作辊的直径大、刚度大，对箔材3的咬入角小，轧制力的侧向分力小，因此，其侧向弯曲倾向小。此外，大直径工作辊对箔材3的咬入弧长更长，有利于润滑介质均匀带入辊缝，使压延弧区油膜的厚度更均匀。这些因素均有利于减小压延弧面沿箔材3宽度方向的弧长波动性，从而获得更好的轧制板形。综上，小直径工作辊有利于轧薄，却受限于轧制板形难于控制，因此轧宽不宜过大；而大直径工作辊有利于轧制板形的控制，适合轧宽，但不适合轧薄。对于厚度小于0.15mm的宽幅箔材来说，工作辊的直径必须足够小(通常直径在25-100mm)，才能得到较大的轧制减薄量，而此时的板形将非常难以控制，这也是目前制约高精宽幅箔材轧制的瓶颈。
轧机稳定轧制的三大基础条件分别是辊系精度、润滑条件和张力精度。由上述可知，当前轧机的多辊系构架对辊系的精度造成了影响，当前轧机的等径工作辊及等径调整辊对润滑条件造成了影响，当前的轧机对箔材的轧制方式对张力精度造成了影响，这些都是目前制约箔材轧制向高精宽幅方向上发展的技术瓶颈。
发明内容
为了克服背景技术中的不足，本发明公开了一种轧制设备及轧制方法，其目的在于：解决或改善背景技术中所提出的问题，打破制约高精宽幅箔材轧制的技术瓶颈。
为实现上述发明目的，本发明采用如下技术方案：
一种轧制设备，用于箔材的轧制，其特征是：包括轧机和调整辊组；
所述轧机的轧辊以轧制中心线为界，分为上半辊系和下半辊系，其中一半辊系相比于另一半辊系，其轧辊的数量少，而其中的工作辊的辊径则大于另一半辊系中的工作辊的辊径；
所述调整辊组包括一根展平辊和至少一根挡油辊，展平辊、挡油辊相对于轧机辊缝同侧设置，靠近轧机辊缝的展平辊的辊径大于远离轧机辊缝的挡油辊的辊径。
进一步地改进技术方案，所述调整辊组为两组，分别设置在轧机的入口侧和出口侧。
进一步地改进技术方案，通过调整轧机入口侧和出口侧的展平辊的高低，使箔材包覆在辊径较大的工作辊的辊面上，形成入口侧包覆弧和出口侧包覆弧。
进一步地改进技术方案，所述入口侧包覆弧和出口侧包覆弧的包覆角为α，0°＜α≤60°
进一步地改进技术方案，大辊径工作辊的辊径是小辊径工作辊辊径的1.5-5倍；所述展平辊的辊径是所述挡油辊辊径的1.5-3.5倍。
进一步地改进技术方案，轧辊的数量少的一半辊系，其轧辊的数量为三根，三根轧辊呈直列或三角形排列。
进一步地改进技术方案，轧辊的数量少的一半辊系，其轧辊的数量为四根，呈丁字形排列。
进一步地改进技术方案，轧辊的数量多的一半辊系，其轧辊的数量为六根或十根，呈扇形排列。
一种轧制方法，其特征是：使用所述轧制设备，通过调整展平辊的高低， 使箔材包覆在辊径较大的工作辊的辊面上，形成包覆弧。
进一步地改进技术方案，在箔材的轧制变形区域内，当小辊径工作辊一侧板面的流出速度大于大辊径工作辊一侧板面的流出速度时，提高大辊径工作辊的辊面线速度或减少小辊径工作辊的辊面线速度，使小辊径工作辊一侧板面的流出速度等于大辊径工作辊一侧板面的流出速度。
由于采用上述技术方案，相比背景技术，本发明具有如下有益效果：
本发明使箔材在辊径较大的工作辊上形成包覆弧，通过工作辊对箔材的背撑，使张力在入口侧包覆弧和出口侧包覆弧的横截面上均匀分布，在轧制关键的成型初期就消除了波浪、皱褶等缺陷的产生，并在轧制成型的后期使板形得以稳定，实现了对箔材的均张轧制，突破了制约箔材向更宽、更薄、更理想板形方向上发展的瓶颈，解决了行业内长期以来难以解决的技术难题，具有重大的应用价值和经济价值。
本发明的轧机采用不等径工作辊的轧制方案，改善了轧制的润滑条件，总体有利于箔材的减薄，也有利于获得较佳的板形，这是现有等直径工作辊所不能够达到的技术效果。本发明虽然牺牲了一部分对箔材的减薄量，少许增加了轧制道次(往复轧制的次数)，但重要的是使板形保持了稳定，避免或减少了因幅宽的增大而引起的轧制缺陷的发生，这对于宽幅箔材的高精轧制来说，其意义重大。对于已长期陷入技术瓶颈的高精宽幅箔材的轧制来说，本发明无疑是一种技术上的突破。
本发明的轧机采用上下辊系不对称的结构，上下辊系分别通过单、双母线支撑的排列方式，对等增加了对上下工作辊的刚性，同时使至少一根工作辊的稳定性得到增加，而另一根工作辊的弯辊作用不受其妨碍。本发明在保证同样刚度的前提下，减少了轧辊的数量，简化了轧辊在轧机上的安装结构，有利于提高辊系精度，便于轧辊的调整和维护。
本发明的不等径调整辊组兼顾了展平作用和挡油作用，辊径较小的挡油辊的挡油的效果好，有利于挤掉多余的润滑油，提高生产效率；辊径较大的展平 辊对箔材的展平效果好，能够减轻箔材原先存在的缺陷，使箔材能够以平展的状态进入辊缝内，为轧制提供了良好的基础条件。
附图说明
图1为现有轧制设备的结构示意图。
图2为大小直径工作辊在轧制时的对比示意图。
图3为发明在实施例1中的结构示意图。
图4为大小直径工作辊对油层挤出效果的对比图。
图5为包覆弧上某体积单元的受力分析图。
图6为带箔处于无背撑状态时某一体积单元的受力分析图。
图7为带箔处于背撑状态时某一体积单元的受力分析图。
图8为箔材上下层在压延区的流速分布图。
图9为入口侧包覆弧上某体积单元在厚度方向上的张力分布图。
图10为发明在实施例2中的结构示意图。
图11为发明在实施例3中的结构示意图。
图12为发明在实施例4中的结构示意图。
图13为发明在实施例5中的结构示意图。
图14为发明在实施例6中的结构示意图。
图中：1、上工作辊；2、下工作辊；3、箔材；4、轧制中心线；5、调整辊；6、展平辊；7、挡油辊；8、油层；9、体积单元；10、上斜压支撑辊；11、下直压支撑辊；12、下斜压支撑辊。
具体实施方式
下面参照附图来描述本发明的优选实施方式。本领域技术人员应当理解的是，这些实施方式仅仅用于解释本发明的技术原理，并非旨在限制本发明的保护范围。需要说明的是，在本发明的描述中，术语“前”、“后”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方向或位置关系的术语是基于附图所示的方向或位置关系，这仅仅是为了便于描述，而不是指示或暗示所述装置 或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
实施例1：
一种轧制设备，用于厚度为0.1mm、幅宽为1000mm铜箔材的高精轧制。所述轧制设备包括轧机和调整辊组，下面具体说明。
如图3所示，所用轧机为九辊轧机，轧机的轧辊以轧制中心线4为界，分为上半辊系和下半辊系，其中，下半辊系由一根下工作辊2和两根下斜压支撑辊12构成，下斜压支撑辊12用于抵压下工作辊2，下斜压支撑辊12的辊径大于下工作辊2的辊径。所述上半辊系由一根上工作辊1和五根上斜压支撑辊10构成。上半辊系中的上工作辊1的辊径为100mm，下半辊系中的下工作辊1的辊径为200mm，下工作辊2的辊径是上工作辊1的辊径的2倍。
在图3中，位于上半辊系两侧的辊径最大两根上斜压支撑辊10为主动辊(其在图中的箭头线为实线，下同)，其余的上斜压支撑辊10及上工作辊1为从动辊(其在图中的箭头线为虚线，下同)。位于下半辊系的两根下斜压支撑辊12为主动辊，下工作辊2为从动辊。这样的设计，一是有利于传动机构的布局，二是解决了以工作辊作为主动辊所存在的刚度不足问题。为了保证材料变形中心层的稳定，防止上下板面因轧制的线速度差而造成板形卷曲，上工作辊1与下工作辊2的辊面在轧制时的线速度要基本相同。由于上下辊系中的主动辊的辊径不同，因此上下辊系中的主动辊要具有不同的转速。随着电机控制的发展，采用变频器的变频电机已经能够实现转速的可调，采用驱动器的伺服电机已实现了大功率化，因此可以变频电机或伺服电机分别对上下辊系中的主动辊施加以不同的转速，以使上工作辊1和下工作辊2的辊面具有相同的线速度。
由图3可以看出，下半辊系具有三根轧辊，两根下斜压支撑辊12与下工作辊2呈三角排布布局，两根下斜压支撑辊12形成了对下工作辊2的双母线支撑，这种双母线支撑相对于图1中的单母线支撑，其稳定性要好得多。两根下斜压支撑辊12的辊径大于下工作辊2的辊径，而下工作辊2的辊径又相对于上工作 辊1的辊径大了一倍，因此，下半辊系虽然仅有三根轧辊，但是其布局有利于增大下斜压支撑辊12的辊径，因此，下半辊系的整体刚性还是足够大的。上半辊系具有六根轧辊，包括一根上工作辊和五根上斜压支撑辊10。五根上斜压支撑辊10分内外两层，内层的两根上斜压支撑辊10的辊径大于上工作辊1的辊径，但是小于外层的三根上斜压支撑辊10的辊径。由于上工作辊1的辊径最小，因此，内层的两根上斜压支撑辊10的辊径不可能做到很大，因此需要设置外层的三根上斜压支撑辊10以增加整体刚性。上半辊系的六根轧辊整体呈扇形堆积排列，位于内层的两根上斜压支撑辊10对上工作辊1形成了双母线支撑，位于外层的三根上斜压支撑辊10又对内层的两根上斜压支撑辊10形成了双母线支撑，因此，上半辊系的稳定性及刚性也是足够大的，是与下半辊系的刚性对等的。这种上下辊系不对称的结构，其有益效果在于，在保证同样刚度和稳定性的前提下，减少了下半辊系的轧辊数量，简化了轧辊在轧机上的安装结构，便于轧辊的调整和维护。
所述调整辊组为两组，分别设置在轧机的入口侧和出口侧。入口侧和出口侧的调整辊组均包括一根展平辊6和一根挡油辊7，展平辊6、挡油辊7相对于轧机辊缝同侧设置，其中，靠近轧机辊缝的展平辊6的辊径大于远离轧机辊缝的挡油辊7的辊径。
如图4所示，图中小直径工作辊与大直径工作辊对箔材的包角相等。由图可以比较出，位于图中上部的小直径工作辊对油层8的挤出角α较大，而在同种情况下，位于图中下部的大直径工作辊对油层8的挤出角β较小。挤出角越小，越容易出现油楔效应，将箔材从辊面上浮起，从而使润滑油进入辊面的另一侧。由此可知，挡油辊7的辊径较小，对润滑油的挤出角越大，越不易产生油楔效应，挡油的效果越好，有利于挤掉多余的润滑油，不仅可以减少无谓的油耗和工作环境油污，还有利于提高轧机机组的运行速度，提高生产效率。还可得知，在同样的包角下，包覆在小直径工作辊上的箔材，其弧长小、曲率大，不利于对箔材的展平。而包覆在大直径工作辊上的箔材，其弧长大、曲率小， 有利于对箔材的展平。由此推知，在图3中，不等径的调整辊组兼顾了展平作用和挡油作用，辊径较小的挡油辊7的挡油的效果好，有利于挤掉多余的润滑油，为轧制提供良好的油膜条件；辊径较大的展平辊6对箔材的展平效果好，能够减轻箔材原先存在的波浪、褶皱等缺陷，使箔材能够以平展的状态进入辊缝内。
为了使箔材得到均张轧制，本发明提供了一种轧制方法，其核心为，通过调整轧机辊缝两侧展平辊6的高低，使箔材包覆在下工作辊的辊面上，形成入口侧包覆弧和出口侧包覆弧，如图3所示。在轧制过程中，通过下工作辊2辊面对入口侧包覆弧和出口侧包覆弧的背撑，并使前张力和后张力在箔材的横截面上均匀分布，其原理如下：
如图5所示，在轧制过程中，箔材3从左侧进入辊缝，中性点P在压延弧内，在中性点P的左侧，工作辊辊面的线速度大于箔材3进入辊缝的线速度，这就产生了速度差和摩擦力F3，即下工作辊2带动箔材3沿入口侧包覆弧转动，就如皮带传动那样。图中在入口侧包覆弧上任取一个体积单元9，由于摩擦力F3的作用，作用在这个体积单元9上的近端张力F2小于其远端张力F1，这里表述的近端张力和远端张力是相对于距离辊缝的远近而言的。而对于该体积单元9右侧的下一个体积单元9来说，由于摩擦力F3的累积增大，作用在这个体积单元9上的远端张力的大小等于F2，而其近端张力的大小则小于F2，依次类推。由此可以得出，摩擦力F3从A点(入口侧包覆弧的起点)到B点(入口侧包覆弧的终点)是累积增加的，相应的，箔材3在体积单元9上所受的近端张力F2，从A点到B点是逐渐减小的。
如图6所示，图中在箔材3上任取一个体积单元9，由于张力的不均匀性，体积单元9C、D两边部的张力大于中间E部的张力，E部隆起而形成波纹。箔材3在悬空张紧的情况下，近端张力F2等于远端张力F1，此时，体积单元9在宽度方向上是向内收缩的，其内力F4是负值。
如图7所示，当该体积单元9进入入口侧包覆弧后，下工作辊2对其施加 了背撑力T，使体积单元9弯曲变形。由于近端张力F2逐渐减小，使作用在该体积单元9宽度方向上的内力F4由负转正，并逐渐增大。内力F4的增大，使得体积单元9沿宽度方向向外延展，就像松弛的皮筋在宽度方向上变宽一样，进而展平箔材3的波纹部分。在展平过程中，作用在体积单元9C、D两边部的近端张力迅速减小，C、D两边部沿宽度方向向外延展，使得位于中间的E部与下工作辊2的辊面接触，E部与下工作辊2接触后，相应地增大了体积单元9中间部位的近端张力，进而实现近端张力F2在体积单元9横截面上的均匀分布。由图6可知，位于辊缝压延区的近端张力F2则为轧制的前张力，此处的前张力最小，分布在此处横截面上的前张力最均匀。还可以得知，入口侧包覆弧的包覆角越大，位于辊缝压延区的前张力越小，前张力分布得越均匀。
在轧制中，较大的前张力有利于板形的控制。入口侧包覆弧的存在，虽然使前张力在箔材3的横截面上均匀分布，但损失了部分前张力，因此需要卷取机或展平辊6对箔材3增加适当的前张力以补偿损失。在轧制时可以将入口侧包覆弧前端的张力增加到材料屈服强度的50-60％，充分利用张力对箔材的减薄作用拉薄箔材。对于箔材的轧制来说，基本是无缝轧制，工作辊对箔材3的轧制过程可以看作是对箔材3的反复碾薄碾宽过程，卷取机和展平辊6可以看作是对箔材的反复拉长拉窄过程，因此适当增加对箔材的前张力更有利于箔材的减薄和板形的控制。
如图8所示，当箔材3进入辊缝的压延区时，箔材3受工作辊挤压开始变形，由于入口侧包覆弧的存在，箔材3上层的形变量大于下层的形变量，上层板面质点在中性点P处的线速度与上工作辊1辊面的线速度达到一致，而下层板面滞后，质点在E点处的线速度才与下工作辊2辊面的线速度达到一致，致使箔材3上层的流出速度大于箔材3下层的流出速度，在没有后张力作用的情况下，箔材将5向下工作辊2的一侧卷曲，这说明压延区存在着层移现象。层移现象使箔材3的中性面偏向下层，而且会使箔材3会产生卷曲变形。卷曲变形在较大板厚的箔材上表现得较为明显，但在厚度小于0.15mm的箔材上表现得 并不明显，可通过后续的展平矫直等工序得以矫正。
对于要求高的箔材来说，不允许有卷曲变形的存在，因此可以通过改变工作辊转速的方法得以解决。在箔材的轧制变形区域内，当上工作辊1一侧板面的流出速度大于下工作辊2一侧板面的流出速度时，可以提高下工作辊2的辊面线速度，或者减少上工作辊1的辊面线速度，使上工作辊一侧板面的流出速度等于下工作辊一侧板面的流出速度，这样能够消除卷曲变形的产生。
如图9所示，从辊缝流出的带箔5包覆在下工作辊2上，形成出口侧包覆弧。由于带箔5流出的线速度V大于下工作辊2辊面的线速度，因此下工作辊2对出口侧包覆弧上任一体积单元9产生反向的摩擦力F4，在体积单元9上还作用有近端的张力F5和远端的张力F6。在出口侧包覆弧内，摩擦力F4从M点到N点是逐渐增大的，同样的，远端张力F6也相应增大。远端张力F6在N点达到最大，而此处的远端张力F6即为后张力。后张力不仅能防止带箔5跑偏，还有助于带箔5的高速轧制。尤为重要的是，带箔5从辊缝流出后，其所受后张力是逐渐增大的，基于同样的机理，后张力在辊缝的出口处最小，而此处横截面上的后张力分布也最均匀，这对于带箔5板形的控制是很重要的。只有张力在带箔横截面上均匀分布，才能防止板形出现波浪、皱褶等缺陷，而本发明通过带箔5在下工作辊2辊面上的包覆，实现了张力在辊缝出口处的均匀分布，在带箔轧制的成型初期，就消除了波浪、皱褶等缺陷的产生，从而能够获得较佳的板形。随着体积单元9的继续流出，作用在体积单元9横截面上的远端张力F6逐渐增大，张力不均趋势开始明显，但是由于下工作辊2对带箔5的背撑作用，使带箔5不再悬空抖动，在带箔轧制的关键成型期内稳定住了板形，进而防止板形因张力不均而出现波浪、皱褶等缺陷。
从图5、8、9中可以看出，上工作辊1的辊径小，压延弧短，对箔材3的压入量大，有利于箔材3的轧薄，能够减少轧制的总道次。但是上工作辊1的刚度小，侧向弯曲倾向大，且不利于润滑介质均匀带入辊缝，造成箔材3的上板面出现板形缺陷。而下工作辊2刚度大，侧向弯曲倾向小，压延弧长，且有 利于润滑介质均匀带入辊缝，从而使箔材3的下板面获得较佳的板形。但是下工作辊2的辊径大，对箔材3的压入量小，不利于箔材3的轧薄。由此可知，本发明结合了大直径工作辊和小直径工作辊的优点：相对于与上工作辊1等径的传统工作辊来说，下工作辊2辊径的增大，有利于获得更好的板形；相对于与下工作辊2等径的传统工作辊来说，上工作辊1辊径的减小，对箔材3的压入量大，有利于箔材3的轧薄。相应的，本发明也集中了大直径工作辊和小直径工作辊的缺点：相对于与上工作辊1等径的传统工作辊来说，下工作辊2辊径的增大，不有利于箔材3的轧薄。相对于与下工作辊2等径的传统工作辊来说，上工作辊1辊径的减小，不利于获得更好的板形。但是值得注意的是，箔材3经下工作辊2轧制的下板面，其板形较好，而箔材3经上工作辊1轧制的上板面，其板形较差，但是板形较好的下板面对上板面起到了牵制作用，从整体上有利于板形的稳定。
对于厚度在0.15mm以下箔材的轧制来说，基本上都是负辊缝轧制，对其减薄是非常困难的，这是需要解决的主要问题。在本实施例中，采用小直径的上工作辊1对箔材进行减薄，采用大直径的下工作辊2改善了轧制的润滑条件，使箔材获得较佳的板形，兼顾了对箔材的减薄作用和板形要求。而上工作辊1辊径变小后所带来的刚性差问题，是次要问题，可以通过抵压五根上斜压支撑辊10增加刚性而加以解决。因此总的来说，采用不等径工作辊的轧制方案，其利大于弊，虽然牺牲了一小部分减薄量，但总体有利于箔材的减薄，也有利于获得较佳的板形，这是现有等直径工作辊所不能够达到的技术效果，这对于宽幅薄箔材的高精轧制来说，尤为重要。
实施例2：
本实施例与实施例1不同的是，用于厚度为0.03mm、幅宽为800mm的铜箔材的轧制。由于铜箔材厚度减小，因此需要使用更小辊径的上工作辊。在本实施例中，上半辊系中的上工作辊1的辊径为60mm，下半辊系的架构不变，下半辊系中的下工作辊2的辊径仍为200mm，下工作辊2的辊径大约是上工作辊1 的辊径的3.3倍。
为了弥补上工作辊1辊径减小而带来的刚性不足，如图10所示，所用轧机为十三辊轧机，轧机的下半辊系的架构不变，而上半辊系具有九根呈扇形堆积排列的上斜压支撑辊10，九根上斜压支撑辊10分为三层，内层有两根上斜压支撑辊10，中层和外层各有三根上斜压支撑辊10，各上斜压支撑辊10的辊径，从内向外依次增大。位于内层的两根上斜压支撑辊10对上工作辊1形成了双母线支撑，位于中层的三根上斜压支撑辊10又对内层的两根上斜压支撑辊10形成了双母线支撑，位于外层的三根上斜压支撑辊10又对中层的三根上斜压支撑辊10形成了双母线支撑。因此，上半辊系的稳定性及刚性也是足够大的，仍与下半辊系的刚性对等。相比于实施例1，本实施例中的下工作辊2与上工作辊1的辊径比增大，上工作辊1更有利于对箔材的减薄，下工作辊2更有利于保持板形的稳定，起到了比实施例1更好的实施效果。
在实施例1和2中，上下工作辊均为双母线支撑，稳定性好，相应的，工作辊的弯辊作用效果就会变差。因此还需继续改进技术方案。
实施例3：
在本实施例中，轧机为九辊轧机。如图11所示，轧机的上半辊系与实施例1中的上半辊系相同，下半辊系的轧辊数量还为三根，下工作辊2的辊径仍是上工作辊1的辊径的2倍。与实施例1不同的是，下半辊系由呈直线排列的一根下工作辊2、一根小辊径的下直压支撑辊11和一根大辊径的下直压支撑辊11构成，其中，小辊径的下直压支撑辊11用于抵压下工作辊2，大辊径的下直压支撑辊11用于抵压小辊径的下直压支撑辊11。由于下半辊系的构架放宽了对箔材进入或流出辊缝的角度限制，因此，展平辊6可以更加靠近工作辊。为了提高挡油能力，辊缝两侧的挡油辊7各设置三根。
对工作辊进行弯辊是为了解决轧制带箔的凸度问题，使其板形平直。上工作辊1的辊径小、刚性差，对上工作辊1进行弯辊反而难以控制。而下工作辊2的辊径适中、刚性适中，对下工作辊2进行弯辊，其减凸量易于控制。大小辊径的 两根下直压支撑辊11用于增大下工作辊2的刚度，但是仅对下工作辊2进行单母线支撑，不对下工作辊2的弯辊作用做出限制。
由上述可知，本实施例中的上半辊系保证了上工作辊1的刚性，上半辊系在保证对等刚性的前提下，不妨碍下工作辊2的弯辊作用。
实施例4：
基于与实施例3同样的原理，如图12所示，本实施例中的轧机为十三辊轧机，上半辊系有十根轧辊，下半辊系有三根轧辊。由图可知，本轧机的架构是实施例2中的上半辊系架构与实施例3中下半辊系架构的组合。下工作辊2的辊径是上工作辊1的辊径的3.5倍，相比实施例3，上工作辊1更有利于对箔材3的减薄，下工作辊2更有利于板形的稳定。
在实施例3和4中，位于下端的大辊径的下直压支撑辊11对位于中间的小辊径的下直压支撑辊11是单母线支撑，位于中间的小辊径的下直压支撑辊11，其稳定性不佳，因此还需继续改进技术方案。
实施例5：
如图13所示，本实施例中的轧机为十辊轧机，上半辊系有六根轧辊，下半辊系有四根轧辊。由图可知，轧机的上半辊系与实施例1中的上半辊系相同，下工作辊2的辊径仍是上工作辊1的辊径的2倍。与实施例1不同的是，下半辊系由一根下工作辊2、一根下直压支撑辊11和两根下斜压支撑辊12构成。其中，下直压支撑辊11用于抵压下工作辊2，两根下斜压支撑辊12用于抵压下直压支撑辊11。下直压支撑辊11的辊径大于下工作辊2的辊径，下斜压支撑辊12的辊径大于下直压支撑辊11的辊径。由图可知，位于下端的两根下斜压支撑辊12对位于中间的下直压支撑辊11，起到了双母线支撑的作用，使下直压支撑辊11稳定，进而保证了对下工作辊2支撑的稳定。
实施例6：
基于与实施例5同样的原理，如图14所示，本实施例中的轧机为十四辊轧机，上半辊系有十根轧辊，下半辊系有四根轧辊。由图可知，本轧机的架构可以 看作是实施例2中的上半辊系架构与实施例5中下半辊系架构的组合。下工作辊2的辊径是上工作辊1的辊径的4倍，相比实施例5，上工作辊1更有利于对箔材3的减薄，下工作辊2更有利于板形的稳定。
未详述部分为现有技术。尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的保护范围由所附权利要求及其等同物限定。

Claims (10)

  1. 一种轧制设备，用于箔材的轧制，其特征是：包括轧机和调整辊组；
    所述轧机的轧辊以轧制中心线为界，分为上半辊系和下半辊系，其中一半辊系相比于另一半辊系，其轧辊的数量少，而其中的工作辊的辊径则大于另一半辊系中的工作辊的辊径；
    所述调整辊组包括一根展平辊和至少一根挡油辊，展平辊、挡油辊相对于轧机辊缝同侧设置，靠近轧机辊缝的展平辊的辊径大于远离轧机辊缝的挡油辊的辊径。
  2. 如权利要求1所述的一种轧制设备，其特征是：所述调整辊组为两组，分别设置在轧机的入口侧和出口侧。
  3. 如权利要求2所述的一种轧制设备，其特征是：通过调整轧机入口侧和出口侧的展平辊的高低，使箔材包覆在辊径较大的工作辊的辊面上，形成入口侧包覆弧和出口侧包覆弧。
  4. 如权利要求1所述的一种轧制设备，其特征是：所述入口侧包覆弧和出口侧包覆弧的包覆角为α，0°＜α≤60°
  5. 如权利要求1所述的一种轧制设备，其特征是：大辊径工作辊的辊径是小辊径工作辊辊径的1.5-5倍；所述展平辊的辊径是所述挡油辊辊径的1.5-3.5倍。
  6. 如权利要求1所述的一种轧制设备及轧制方法，其特征是：轧辊的数量少的一半辊系，其轧辊的数量为三根，三根轧辊呈直列或三角形排列。
  7. 如权利要求1所述的一种轧制设备及轧制方法，其特征是：轧辊的数量少的一半辊系，其轧辊的数量为四根，呈丁字形排列。
  8. 如权利要求1所述的一种轧制设备及轧制方法，其特征是：轧辊的数量多的一半辊系，其轧辊的数量为六根或十根，呈扇形排列。
  9. 如权利要求1-8任一权利要求所述的一种轧制方法，其特征是：使用所述轧制设备，通过调整展平辊的高低，使箔材包覆在辊径较大的工作辊的辊 面上，形成包覆弧。
  10. 如权利要求9所述的一种轧制方法，其特征是：在箔材的轧制变形区域内，当小辊径工作辊一侧板面的流出速度大于大辊径工作辊一侧板面的流出速度时，提高大辊径工作辊的辊面线速度或减少小辊径工作辊的辊面线速度，使小辊径工作辊一侧板面的流出速度等于大辊径工作辊一侧板面的流出速度。
PCT/CN2021/097719 2021-04-16 2021-06-01 一种轧制设备及轧制方法 WO2022217716A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110411544.7A CN113118214B (zh) 2021-04-16 2021-04-16 一种轧制设备及轧制方法
CN202110411544.7 2021-04-16

Publications (1)

Publication Number Publication Date
WO2022217716A1 true WO2022217716A1 (zh) 2022-10-20

Family

ID=76777246

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/097719 WO2022217716A1 (zh) 2021-04-16 2021-06-01 一种轧制设备及轧制方法

Country Status (2)

Country Link
CN (1) CN113118214B (zh)
WO (1) WO2022217716A1 (zh)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001162304A (ja) * 1999-12-07 2001-06-19 World Kikai Kogyo Kk 金属箔用圧延機
CN1431940A (zh) * 2000-03-29 2003-07-23 川崎重工业株式会社 薄板轧制方法及轧机
CN2740311Y (zh) * 2004-03-02 2005-11-16 刘宝珩 新型薄带4辊冷轧机
CN202877234U (zh) * 2012-11-08 2013-04-17 宝钢工程技术集团有限公司 卡辊式六辊轧机
CN104959382A (zh) * 2014-12-12 2015-10-07 太原科技大学 一种轧制铜铝双层复合板的方法
CN106583462A (zh) * 2016-10-31 2017-04-26 中冶南方工程技术有限公司 一种平整机板形控制装置及方法
CN108555024A (zh) * 2018-05-23 2018-09-21 辽宁博镁兴业科技有限公司 一种镁合金箔材五辊异径轧机装置及其轧制方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58192608A (ja) * 1982-05-07 1983-11-10 Nippon Steel Corp 異径ロ−ル圧延における圧延材の反り防止方法
JP4150276B2 (ja) * 2003-03-20 2008-09-17 新日本製鐵株式会社 金属板材の圧延方法および圧延装置
DE10352546A1 (de) * 2003-09-04 2005-03-31 Sms Demag Ag Verfahren und Vorrichtung zum Aufbringen einer regelbaren Zugspannungsverteilung, insbesondere in den Kantenbereichen kaltgewalzter Metallbänder
CN102357527A (zh) * 2011-06-22 2012-02-22 重庆大学 镁合金板材轧制装置
KR101316724B1 (ko) * 2011-09-16 2013-10-18 강릉원주대학교산학협력단 비대칭 압연장치, 비대칭 압연방법 및 이를 이용하여 제조된 압연재
CN202539186U (zh) * 2012-04-17 2012-11-21 浙江富春江环保热电股份有限公司 轧机张力检测与失张保护装置
CN205289268U (zh) * 2016-01-06 2016-06-08 中色科技股份有限公司 一种真空抽吸除油辊
CN106216393A (zh) * 2016-07-26 2016-12-14 宝钢股份黄石涂镀板有限公司 一种具有余液快速吹扫装置的可逆式轧机
CN205869069U (zh) * 2016-07-28 2017-01-11 浙江业盛新型材料有限公司 美工刀片专用带材轧制专用设备
CN207952232U (zh) * 2017-12-30 2018-10-12 江苏创泰特钢制品有限公司 轧机吹扫装置
CN208483008U (zh) * 2018-05-23 2019-02-12 辽宁博镁兴业科技有限公司 一种镁合金箔材五辊异径轧机装置
CN112453069B (zh) * 2020-11-05 2021-09-14 燕山大学 分段柔性调控辊型的新型轧机外冷装置及其操作方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001162304A (ja) * 1999-12-07 2001-06-19 World Kikai Kogyo Kk 金属箔用圧延機
CN1431940A (zh) * 2000-03-29 2003-07-23 川崎重工业株式会社 薄板轧制方法及轧机
CN2740311Y (zh) * 2004-03-02 2005-11-16 刘宝珩 新型薄带4辊冷轧机
CN202877234U (zh) * 2012-11-08 2013-04-17 宝钢工程技术集团有限公司 卡辊式六辊轧机
CN104959382A (zh) * 2014-12-12 2015-10-07 太原科技大学 一种轧制铜铝双层复合板的方法
CN106583462A (zh) * 2016-10-31 2017-04-26 中冶南方工程技术有限公司 一种平整机板形控制装置及方法
CN108555024A (zh) * 2018-05-23 2018-09-21 辽宁博镁兴业科技有限公司 一种镁合金箔材五辊异径轧机装置及其轧制方法

Also Published As

Publication number Publication date
CN113118214A (zh) 2021-07-16
CN113118214B (zh) 2023-03-24

Similar Documents

Publication Publication Date Title
WO2022217717A1 (zh) 一种宽幅金属带箔的轧制方法
CN113118215B (zh) 一种宽幅带箔轧制设备
CN1883833A (zh) 多辊多机架可逆式冷轧机及其轧制方法
WO2022217716A1 (zh) 一种轧制设备及轧制方法
CN214767788U (zh) 一种用于实现金属带箔在工作辊上形成包覆弧的结构
CN110052497A (zh) 一种热连轧精轧机组成套辊形以及板形控制方法
WO2022217718A1 (zh) 一种均张轧制方法
CN214866113U (zh) 一种带箔高精轧机
JP2006247721A (ja) 凹凸状金属板挟圧用ロールを用いた金属板の形状矯正方法および形状矯正装置
CN113118212B (zh) 一种能够防止翘曲的宽幅箔材轧机及轧制方法
CN215918632U (zh) 一种具有非对称辊系架构的轧机
JP7470201B2 (ja) 金属ストリップの圧延のための圧延スタンド
CN214976682U (zh) 一种不等径调整辊组
CN109663817B (zh) 一种宽厚板平辊轧机的横向厚度精度控制方法
CN215467035U (zh) 一种具有不等径工作辊的轧机
CN110369515A (zh) 一种铝热连轧机组薄板带的变规格穿带控制方法
CN110385339A (zh) 一种半工艺钢的平整方法
JP3250578B2 (ja) ６本ロールカレンダ
JP3064822B2 (ja) マンドレルミルによる管圧延方法
JPH07171602A (ja) 外法一定平行フランジ溝形鋼の製造方法
JP4272361B2 (ja) 板圧延機
JP3728893B2 (ja) 金属板の調質圧延方法
JPH02169105A (ja) 異形断面条の圧延方法および装置
JPH04284902A (ja) 金属板の熱間仕上圧延装置および圧延方法
JPH01197001A (ja) 熱間薄板圧廷方法及び圧廷機

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21936588

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21936588

Country of ref document: EP

Kind code of ref document: A1