CN114472530A - Cold rolling mill working roll, roll shape forming method and UCMW cold rolling mill - Google Patents
Cold rolling mill working roll, roll shape forming method and UCMW cold rolling mill Download PDFInfo
- Publication number
- CN114472530A CN114472530A CN202210294922.2A CN202210294922A CN114472530A CN 114472530 A CN114472530 A CN 114472530A CN 202210294922 A CN202210294922 A CN 202210294922A CN 114472530 A CN114472530 A CN 114472530A
- Authority
- CN
- China
- Prior art keywords
- control section
- roll
- depth
- axial
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005097 cold rolling Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 57
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 56
- 230000002265 prevention Effects 0.000 claims abstract description 53
- 230000015654 memory Effects 0.000 claims description 19
- 238000013178 mathematical model Methods 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 10
- 238000004364 calculation method Methods 0.000 claims description 8
- 230000008859 change Effects 0.000 abstract description 14
- 238000005096 rolling process Methods 0.000 abstract description 14
- 238000013461 design Methods 0.000 abstract description 9
- 230000001276 controlling effect Effects 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 229910000976 Electrical steel Inorganic materials 0.000 description 6
- 238000004590 computer program Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000009877 rendering Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000013528 artificial neural network Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013135 deep learning Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- 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
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention relates to the field of rolling of cold-rolled strips, in particular to a working roll of a cold-rolling mill, a roll profile forming method and a UCMW cold-rolling mill, wherein one side of the roll profile of the working roll is a first flat roll section, and the other side of the roll profile comprises: the first end of the second flat roller section is connected with the first flat roller section; the first end of the edge drop control section is tangent to the second end of the second flat roller section, the edge drop control section is a circular arc, and the circle center of the edge drop control section faces the working roller; the first end of the strip breakage preventing control section is tangent to the second end of the edge drop control section, the strip breakage preventing control section is in a circular arc shape, the circle center of the strip breakage preventing control section is opposite to the working roll, and the strip breakage preventing control section is used for enabling the working roll to be in contact with the edge of the strip steel in a working state; and the deviation control section is connected with the second end of the belt breakage prevention control section. The anti-broken belt control section adopts a reverse arc design, can reduce the change rate of the chamfer angle of the roller corresponding to the edge of the strip steel, homogenizes the stress of the edge, effectively prevents the problem of broken belt, and can play a role in regulating and controlling the edge drop.
Description
Technical Field
The invention relates to the field of rolling of cold-rolled strips, in particular to a working roll of a cold rolling mill, a roll profile forming method and a UCMW cold rolling mill.
Background
The cold-rolled non-oriented silicon steel is used as a main material for manufacturing iron cores of a stator and a rotor of equipment such as a transformer, a motor, a generator and the like, and the silicon steel edge drop refers to the thickness reduction of the edge of strip steel in the rolling process, and directly influences the motor stacking coefficient and the performance of the whole machine. In recent years, with the higher and higher requirements of end users on motors, the higher requirements on edge reduction leveling of cold-rolled silicon steel products are provided.
The shape of the on-load roll gap of the rolling mill determines the section shape of the strip steel, the initial roll shape of the roll is used as an important factor influencing the shape of the on-load roll gap of the rolling mill, and the optimization of the roll shape becomes an effective means for improving the control capability of the silicon steel edge drop. For example, the roller shape adopts a straight line chamfer, but because the transition between the chamfer section and the plain roll section is sharp, a stress concentration point exists at the connecting position, the abrasion of the working roll is easily aggravated, the service life of the working roll is reduced, and meanwhile, the shape control at the later service period of the working roll is not facilitated. And moreover, as the roller type adopts the arc chamfer, the transition is gentle with the flat roller section, the stress concentration problem is avoided, but the closer to the edge part, the larger the chamfer change rate, the uneven deformation of the edge part of the strip steel is, and the strip breakage is easily caused.
In the prior art, the roller is a working roller with two-section type circular arc, the first section of circular arc is a side-descending control section, the second section of circular arc is a deviation control section, and although the reverse circular arc design enables the chamfer angle to change smoothly, the purpose of reducing the stress of the edge of the strip steel cannot be achieved.
Disclosure of Invention
Therefore, the invention aims to solve the technical problem that the working roll can not reduce the edge stress of the strip steel, and provides a working roll of a cold rolling mill, a roll profile forming method and a UCMW cold rolling mill, wherein the technical scheme is as follows:
in one aspect, the application provides a cold rolling mill work roll, roll type one side of work roll is first flat roll section, the opposite side of roll type includes:
a second flat roller section, a first end of which is connected with the first flat roller section;
the first end of the edge drop control section is tangent to the second end of the second flat roller section, the edge drop control section is a circular arc, and the circle center of the edge drop control section faces the working roller;
the first end of the strip breakage preventing control section is tangent to the second end of the edge drop control section, the strip breakage preventing control section is in a circular arc shape, the circle center of the strip breakage preventing control section is opposite to the working roll, and the strip breakage preventing control section is used for enabling the working roll to be in contact with the edge of the strip steel in a working state; and the deviation control section is connected with the second end of the breakage-proof belt control section.
Preferably, the deviation control section is a straight line section, and the deviation control section is tangent to the second end of the breakage-proof belt control section.
Preferably, the first radial depth from the second end of the edge drop control section to the second flat roller section is 60 to 120 μm, the second radial depth from the second end of the strip breakage prevention control section to the second flat roller section is 100 to 160 μm, and the difference between the second radial depth and the first radial depth is 0 to 40 μm; and/or the axial distance between the second end of the edge drop control section and the roller at the first end of the edge drop control section is 110-150 mm, and the axial distance between the second end of the strip breakage prevention control section and the roller at the first end of the strip breakage prevention control section is 15-30 mm.
In another aspect, the present application provides a method for forming a roll profile of the above work roll, where a rectangular coordinate system is established with a roll axial center line of the roll profile as a Y-axis and a flat roll segment of the roll profile as an X-axis, the method includes:
acquiring a preset width of the strip steel, a first preset length and a first radial depth of a side drop control section and a second preset length and a second radial depth of a broken strip prevention control section; the first preset length is the axial distance between the second end of the side drop control section and the roller of the first end of the side drop control section, the first radial depth is the distance between the second end of the side drop control section and the X axis, the second preset length is the axial distance between the second end of the broken belt prevention control section and the roller of the first end of the broken belt prevention control section, and the second radial depth is the distance between the second end of the broken belt prevention control section and the X axis;
calculating a third axial depth of the strip breakage prevention control section, a second axial depth of the edge drop control section and a first axial depth based on the preset width, the first preset length and the second preset length of the strip steel; the third axial depth is the distance between the second end of the breakage-proof belt control section and the Y axis, the second axial depth is the distance between the second end of the edge drop control section and the Y axis, and the first axial depth is the distance between the first end of the edge drop control section and the Y axis;
and drawing the roller shape based on the first preset length, the first axial depth, the second axial depth, the third axial depth, the first radial depth and the second radial depth.
Preferably, the method further comprises: acquiring a third preset length of the roller profile;
calculating a fourth axial depth of the deviation control section based on the third preset length; the fourth axial depth is the distance from the second end of the deviation control section to the Y axis;
calculating the slope of the deviation control section based on the circle center coordinate and the second end coordinate of the breakage-proof belt control section;
and drawing the deviation control section of the roller shape based on the slope and the fourth axial depth of the deviation control section.
Preferably, the edge drop control section is drawn through a first mathematical model, and the first mathematical model is as follows:
wherein, x is1Representing the first axial depth, said x2Representing said second axial depth, said L1Represents the first preset length, y2Representing the first radial depth; and/or
Drawing the band-breakage preventing control section through a second mathematical model, wherein the second mathematical model is as follows:
in the formula, m2、n2Respectively representing the abscissa and ordinate of the circle center of the breakage-proof belt control section, m1、n1Respectively representing the abscissa and the ordinate of the circle center of the edge drop control section, x2Representing said second axial depth, y2Representing said first radial depth, x3Representing said third axial depth, y3Representing the second radial depth.
Preferably, the belt breakage prevention control section is drawn through a third mathematical model, and the third mathematical model is as follows:
in the formula, x3、y3Respectively representing a third axial depth and a second radial depth, x4Representing said fourth axial depth, m2、n2Respectively indicating said prevention of breakageThe abscissa and the ordinate of the circle center of the control section are provided.
In another aspect, the present application provides a roller profile forming apparatus for a work roller, where a rectangular coordinate system is established with a roller axial center line of the roller profile as a Y-axis and a flat roller segment of the roller profile as an X-axis, the apparatus including:
the first acquisition module is used for acquiring the preset width of the strip steel, the first preset length and the first radial depth of the edge drop control section and the second preset length and the second radial depth of the strip breakage prevention control section; the first preset length is the axial distance between the second end of the side drop control section and the roller of the first end of the side drop control section, the first radial depth is the distance between the second end of the side drop control section and the X axis, the second preset length is the axial distance between the second end of the broken belt prevention control section and the roller of the first end of the broken belt prevention control section, and the second radial depth is the distance between the second end of the broken belt prevention control section and the X axis;
the first calculation module is used for calculating a third axial depth of the strip breakage prevention control section, a second axial depth of the edge drop control section and a first axial depth based on the preset width, the first preset length and the second preset length of the strip steel; the third axial depth is the distance between the second end of the breakage-proof belt control section and the Y axis, the second axial depth is the distance between the second end of the edge drop control section and the Y axis, and the first axial depth is the distance between the first end of the edge drop control section and the Y axis;
and the first drawing module is used for drawing the roller shape based on the first preset length, the first axial depth, the second axial depth, the third axial depth, the first radial depth and the second radial depth.
Preferably, the apparatus further comprises: the second obtaining module is used for obtaining a third preset length of the roller type; the second calculation module is used for calculating a fourth axial depth of the deviation control section based on the third preset length; the fourth axial depth is the distance from the second end of the deviation control section to the Y axis;
the third calculation module is used for calculating the slope of the deviation control section based on the circle center coordinate and the second end coordinate of the breakage-proof belt control section;
and the second drawing module is used for drawing the deviation control section of the roller type based on the slope and the fourth axial depth of the deviation control section.
In yet another aspect, the present application provides a computer device comprising: the roller forming device comprises a memory and a processor, wherein the memory and the processor are mutually connected in a communication mode, computer instructions are stored in the memory, and the processor executes the computer instructions so as to execute the roller forming method.
In yet another aspect, the present application provides a computer-readable storage medium having stored thereon computer instructions for causing a computer apparatus to execute the roll-form forming method described above.
In yet another aspect, the present application provides a computer program product for implementing the roll profile forming method described above when the computer program product is run on a computer device.
In yet another aspect, the present application provides a UCMW cold rolling mill comprising the above described cold rolling mill work roll.
The technical scheme of the invention has the following advantages:
according to the working roll of the cold rolling mill, the edge thinning amount of strip steel is reduced through the design of the chamfer angle of the edge of the working roll, and the edge drop control level of the rolling mill is improved; the anti-broken belt control section adopts a reverse arc design, can reduce the change rate of the chamfer angle of the roller corresponding to the edge of the strip steel, homogenizes the stress of the edge, effectively prevents the problem of broken belt, and can play a role in regulating and controlling the edge drop.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a prior art work roll profile;
FIG. 2 is a schematic view showing the roll profile of a work roll of a cold rolling mill according to example 1 of the present invention;
FIG. 3 is a flowchart of a roll shape forming method according to example 2 of the present invention;
FIG. 4 is an analysis diagram of the edge drop control segment of FIG. 2;
FIG. 5 is an analysis diagram of the breakage prevention band control section of FIG. 2;
FIG. 6 is an analysis diagram of the runout control section of FIG. 2;
FIG. 7 is a block diagram showing the structure of a roll type forming apparatus according to embodiment 3 of the present invention;
FIG. 8 is a block diagram showing still another constitution of a roll type forming apparatus according to embodiment 3 of the present invention;
FIG. 9 is a functional block diagram of a computer device according to embodiment 4 of the present invention;
FIG. 10 is a schematic view of a single arc roller profile;
FIG. 11 is a schematic view of the cold rolling mill of example 1 in its entirety;
FIG. 12 is a schematic diagram showing a comparison between the shape of the cold rolling mill roll and the shape of the single circular arc roll in example 1.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, which is a two-segment arc work roll disclosed in the prior art, in the roll profiles of the work roll 101, the roll profile corresponding to the first segment 102 is a flat roll segment, the roll profile corresponding to the second segment 103 is an arc edge drop control segment, and the roll profile corresponding to the third segment 104 is an arc compensation segment. The flat roll section and the arc edge drop control section belong to working sections and are used for improving the edge drop of the strip steel, and the arc compensation section is used for reducing the strip breakage risk caused by the deviation of the strip steel. The arc edge drop control section is arc-shaped, the arc compensation section is inverse arc-shaped, and the change of the chamfer angle can be gentle due to the inverse arc design, but the arc compensation section is not in direct contact with the edge of the strip steel, so that the aim of reducing the stress of the edge of the strip steel cannot be fulfilled.
Example 1
The embodiment provides a working roll of a cold rolling mill, which can be arranged on the cold rolling mill to roll strip steel. As shown in fig. 2, which shows the roll profile structure of the working roll, the roll profile of the working roll may be divided into two sides by taking the center line of the axial direction 201 of the roll as a boundary, wherein one side includes a first flat roll section 209, and the other side includes a second flat roll section 203, a side drop control section 204, a belt breakage prevention control section 205 and a deviation control section 206. The first end of the second flat roller section 203 is connected with the first end of the first flat roller section 209, the first end of the edge drop control section 204 is tangent to the second end of the second flat roller section 203, the edge drop control section 204 is arc-shaped, and the center of the circle of the edge drop control section is towards the working roller (as shown in fig. 5), that is, the second end of the second flat roller section 203 is connected with the first end of the edge drop control section 204, and the flat roller section 203 is tangent to the first end of the edge drop control section 204 (i.e., the second end of the flat roller section 203). The first end of the edge drop control section 204 is a starting point of the edge drop control section, the second end of the edge drop control section 204 is an end point of the edge drop control section, the end point is a characteristic point for evaluating the shape of the near-edge part of the strip steel, the edge drop level after the edge cutting of the strip steel finished product is determined, the first radial depth from the second end of the edge drop control section 204 to the second roller section 203 can be 60-120 mu m, and namely the length of the second end of the edge drop control section 204 and the length of the first end of the edge drop control section 204 along the roller radial direction 202 can be 60-120 mu m. The axial distance between the second end of the edge drop control section 204 and the first end of the edge drop control section 204 may be 110mm to 150mm, that is, the length between the second end of the edge drop control section 204 and the first end of the edge drop control section 204 along the axial direction 201 of the roll may be 110mm to 150 mm.
The breakage-preventing belt control section 205 is arc-shaped, and the center of the arc-shaped control section faces away from the working roll. The first end of the strip breakage preventing control section 205 is connected to the second end of the edge drop control section 204, and the strip breakage preventing control section 205 and the edge drop control section 204 are tangent to the first end of the strip breakage preventing control section 205 (i.e., the second end of the edge drop control section 204). When the cold rolling mill works, the working roll is extruded, and the strip breakage preventing control section 205 is directly contacted with the edge of the strip steel. The strip breakage preventing control section 205 is designed by adopting an inverse arc (namely, the circle center of the strip breakage preventing control section 205 is back to the working roll), so that the change rate of the chamfer angle of the roll corresponding to the edge of the strip steel can be reduced, the stress of the edge is homogenized, and the strip breakage risk is effectively prevented. The second end of the strip breakage preventing control section 205 is a strip breakage preventing control position point which determines the edge drop level of the hard rolling coil and the roll shape change rate of the strip breakage preventing control section, the second radial depth of the second end of the strip breakage preventing control section 205 from the second flat roll section 203 can be 100-160 μm, namely the length of the second end of the strip breakage preventing control section 205 and the first end of the edge drop control section 204 along the radial direction 202 of the roll can be 100-160 μm. To ensure the smoothness of the band break prevention control section 205, the difference between the second radial depth and the first radial depth may be 0 μm to 40 μm. The axial distance between the second end of the strip breakage prevention control section 205 and the roller of the first end of the strip breakage prevention control section 205 may be 15mm to 30mm, that is, the length between the second end of the strip breakage prevention control section 205 and the first end of the strip breakage prevention control section 205 along the roller axial direction 201 may be 15mm to 30 mm.
As shown in fig. 2, the deviation control section 206 is connected to the second end of the strip breakage preventing control section 205, the cold rolling mill presses the work roll during operation, the edge of the strip 210 directly contacts with the strip breakage preventing control section 205, and the deviation control section 206 does not directly contact with the edge of the strip.
In conclusion, the working roll of the cold rolling mill provided by the embodiment can reduce the edge thinning amount of the strip steel through the design of the edge chamfer of the working roll, and improve the edge drop control level of the rolling mill; the anti-breakage control section adopts a reverse arc design, can reduce the change rate of the chamfer angle of the roller corresponding to the edge of the strip steel, homogenizes the stress of the edge, effectively prevents the risk of breakage of the strip steel, and can play a role in regulating and controlling edge drop.
In one or more embodiments, as shown in fig. 2, the deviation control section 206 is a straight line section, a first end of the deviation control section 206 is connected to a second end of the breakage-proof belt control section 205, and the deviation control section 206 is tangent to the breakage-proof belt control section 205 and is connected to the second end of the breakage-proof belt control section 205 (i.e., the first end of the deviation control section 206). The second end of the off tracking control section 206 is a work roll edge roll profile characteristic point that determines the roll grinding capacity of the cold rolling mill. The deviation control section 206 adopts a straight line design, and the gradual transition can ensure that the chamfer change rate cannot be increased sharply after the strip steel deviates, and the edge part is slowed down to be tensioned.
Example 2
This example provides a method of forming a roll profile and fig. 3 is a flow chart illustrating the formation of the roll profile of the cold rolling mill work roll described in example 1 according to some embodiments of the present invention. Although the processes described below include operations that occur in a particular order, it should be clearly understood that the processes may include more or fewer operations that are performed sequentially or in parallel (e.g., using parallel processors or a multi-threaded environment).
As shown in fig. 2 and 3, a rectangular coordinate system may be established with a center line along a roll axial direction 201 of a roll profile as a Y-axis and a flat roll segment of the roll profile as an X-axis, and the roll profile forming method includes the steps of (S101 to S103):
s101, obtaining a preset width of the strip steel, a first preset length and a first radial depth of a side drop control section, and a second preset length and a second radial depth of a strip breakage prevention control section.
As shown in fig. 2, the first preset length 207 is a distance from the second end of the side drop control section 204 to the first end of the side drop control section 204 along the axial direction 201 of the roll, and the second preset length 208 is a distance from the second end of the strip breakage prevention control section 205 to the first end of the strip breakage prevention control section 205 along the axial direction 201 of the roll. The value of the first preset length 207 can be 110 mm-150 mm, the edge drop control effect cannot be realized when the value of the first preset length 207 is too small, the starting point of the roller profile (namely, the first end of the edge drop control section 204) is too close to the middle of the strip steel when the value of the first preset length 207 is too large, and the strip shape problem is easy to occur because the transverse flow compensation capability of the middle area of the strip steel is weaker. The second preset length 208 corresponds to the steep drop zone of the edge of the strip steel, and the value of the second preset length can be 15 mm-30 mm.
The first radial depth is the distance from the second end of the edge drop control section 204 to the X-axis, and the second radial depth is the distance from the second end of the strip breakage prevention control section 205 to the X-axis. The first preset length 207, the second preset length 208, the first radial depth and the second radial depth can be given according to the on-site edge drop control requirement, and the preset width of the strip steel is the width of the strip steel 210 to be rolled.
S102, calculating a third axial depth of the strip breakage prevention control section, a second axial depth of the edge drop control section and a first axial depth based on the preset width, the first preset length and the second preset length of the strip steel.
The third axial depth is the distance from the second end of the strip breakage prevention control section 205 to the Y-axis, the second axial depth is the distance from the second end of the edge drop control section 204 to the Y-axis, and the first axial depth is the distance from the first end of the edge drop control section 204 to the Y-axis (i.e., the distance from the second end of the second flat roller section 203 to the Y-axis). As shown in FIG. 2, point A (x)10) is the first end of the edge drop control section 204, point B (x)2，y2) To the second end of the edge drop control section 204, point C (x)3，y3) To prevent the second end of the control section 205 from being broken. Wherein the first axial depth has a value of x1The value of the second axial depth being x2The value of the third axial depth is x3The first radial depth is y2And the second radial depth is y3. The first, second, and third axial depths may be:
wherein N is the preset width L of the strip steel1Is a first predetermined length, L2Is a second predetermined length. It should be noted that, when the working roll in embodiment 1 is a working roll of the UCMW cold rolling mill, since the UCMW cold rolling mill has a working roll shifting function, a roll shifting position can be preset according to the width and the crown of the strip steel, so as to meet the rolling mill edge drop control requirement. The preset cross roller position of the working roller is divided into two stages of rough adjustment and fine adjustment, wherein the rough adjustment stage is used for adjusting the cross roller positionThe regulation comprises the following steps: inquiry of minimum rolling width NminAnd the maximum rolling width NmaxAt an intermediate width Nmid＝(Nmin+Nmax) And/2, the preset width of the strip steel is taken as the preset width of the strip steel. If the actual width of the supplied material is M, the roll shifting amount W of the working roll needs to be adjusted1＝(M-Nmid) And/2, the purpose is to keep the roller type insertion amount consistent for different strip widths. Wherein W1Negative values indicate inward shifting of the roll segments of the work rolls, W1A positive value indicates outward roll shifting of the work roll profile.
The fine adjustment comprises the following steps: setting standard hot rolling convexity as H0The actual convexity is H. If H is less than or equal to H0Secondary roll shifting amount calculation is not needed; if H > H0The working rolls need to be subjected to secondary roll shifting, and the deterioration of hot rolling convexity is compensated by increasing the roll profile depth of the edge of the strip steel. Secondary roll shifting value W2The calculation formula is as follows:
therefore, the preset total roll shifting amount of the working roll is as follows:
s103, drawing the roller shape based on the first preset length, the first axial depth, the second axial depth, the third axial depth, the first radial depth and the second radial depth.
The center line of the roll profile of the working roll of the cold rolling mill provided in embodiment 1 along the axial direction 201 of the roll is a Y-axis, one side of the roll profile is a first flat roll section 209, and the other side of the roll profile comprises a second flat roll section 203, a side drop control section 204, a strip breakage prevention control section 205 and a deviation control section 206. As shown in fig. 2, the second end of the second flat roller section 203 is connected to the first end of the edge drop control section 204, the second flat roller section 203 can be drawn according to the first axial depth, and the edge drop control section 204 can be drawn according to the first axial depth, the first preset length, and the first radial depth. The second end of the landing control section 204 is tangent to the first end of the anti-trip control section 205, and the anti-trip control section 205 can be drawn according to the first axial depth, the second axial depth, the third axial depth, the first radial depth, and the second radial depth. The deviation control section 206 is connected to the second end of the belt breakage preventing control section 205, and the deviation control section 206 may be a straight line section or a curved line section, and those skilled in the art can reasonably select the deviation control section according to actual conditions, which is not limited herein. It should be noted that, since the Y-axis is the axial center line of the roller, after the deviation control section 206 is drawn, the first flat roller section 209 can be drawn according to the length of the second end of the deviation control section 206 from the Y-axis.
As shown in fig. 2 and 4, the second flat roller section 203 is tangent to the edge drop control section 204, and the straight line O1A is perpendicular to the point A, so that:
the radius of the edge drop control segment 204 may be determined
Center of circle O1The coordinates are
The edge drop control segment 204 may be plotted in a rectangular coordinate system by a first mathematical model:
in the formula, x1Representing a first axial depth, x2Indicating a second axial depth, L1Denotes a first predetermined length, y2Representing a first radial depth.
As shown in fig. 2 and 5, the edge drop control section 204 and the anti-break belt control section 205 are tangent to the point B, and the straight line O1B and a straight line O2B coinciding with, i.e. straight line O1B and a straight line O2The slopes of B are equal, from which it follows:
(m2-x2)2+(n2-y2)2＝(m2-x3)2+(n2-y3)2
in combination with the above formula, the strip breakage prevention control segment 205 is drawn in the rectangular coordinate system by a second mathematical model, and the second mathematical model is:
in the formula, m2、n2Respectively representing the abscissa and ordinate of the center of the control section of the breakage preventing belt, m1、n1Respectively representing the abscissa and ordinate, x, of the center of the edge drop control section2Indicating a second axial depth, y2Representing a first radial depth, x3Indicating a third axial depth, y3Representing the second radial depth.
In one or more embodiments, as shown in fig. 2, the deviation control section 206 is a straight line section, and a first end of the deviation control section 206 is tangent to a second end of the belt breakage preventing control section 205, that is, the deviation control section 206 and the belt breakage preventing control section 205 are tangent to a point C, which is a point C (x)3，y3) A second end of the tracking control segment 206. Drawing the anti-broken tape control segment 206 may include the followingSteps (S201 to S204):
s201, acquiring a third preset length of the roller type.
As shown in fig. 2, the third predetermined length is the total length of the roll profile in the roll axial direction 201. The third preset length of the roller type is given according to practical conditions and is not limited herein. As shown in FIG. 2, point E (x)40) and point D (x)4，y4) The length in the axial direction 201 of the roll is a third preset length.
S202, calculating a fourth axial depth of the deviation control section based on the third preset length.
The fourth axial depth is the distance from the second end of the deviation control section 206 to the Y-axis, and the second end of the deviation control section 206 is the characteristic point of the edge roll profile of the working roll, which determines the grinding amount of the roll. Since the Y-axis is the axial centerline of the roll profile, the second end of the first flat roll segment 209 (point E is the second end thereof, as shown in fig. 2) is also at a fourth axial depth from the Y-axis, and accordingly the first flat roll segment 209 can be plotted against the fourth axial depth. The distance between the second end of the deviation control section 206 and the first end of the deviation control section 206 along the axial direction 201 of the roller is a fourth preset length of the deviation control section 206, which can be calculated by the third preset length and the preset width of the strip steel.
And S203, calculating the slope of the deviation control section based on the circle center coordinate and the second end coordinate of the breakage-proof belt control section.
As shown in fig. 2 and 6, since the deviation control section 206 and the belt breakage preventing control section 205 are tangent to the point C, it can be known that:
thus, the slope of the off-tracking control segment 206:
and S204, drawing a deviation control section of the roller type based on the slope of the deviation control section and the fourth axial depth.
The anti-broken belt control section 206 may be drawn through a third mathematical model, which is:
in the formula, x3、y3Respectively representing a third axial depth and a second radial depth, x4Denotes the fourth axial depth, m2、n2Respectively, the abscissa and ordinate of the center of the breakage prevention band control section 205.
The depth of the roller profile at the edge part of the working roller can be calculated by the following formula:
in the formula, LWRRepresenting a third predetermined length of the work roll profile. The depth of the roller profile at the edge of the working roller influences the maximum grinding amount of the roller and can be adjusted by adjusting A (x)1，0)、B(x2，y2)、C(x3，y3) The three position point parameters control the depth of the roller profile at the edge of the working roller, and the purpose of reducing the grinding consumption of the roller is realized.
The method comprises the steps of setting a preset width of the strip steel, a first preset length and a first radial depth of a side-falling control section, a second preset length and a second radial depth of a broken-strip-preventing control section and a third preset length of a roller profile, outputting a visual image of the roller profile, adjusting the size of the roller profile parameters according to the field use condition and the requirements of the hard-rolling side-falling level, and being high in flexibility.
Example 3
This embodiment provides a roll profile forming apparatus for drawing the roll profile of the work roll of the cold rolling mill provided in embodiment 1, and the apparatus may be a computer device or may be disposed in a computer device. As shown in fig. 7, a rectangular coordinate system is established with the axial center line of the roll profile as the Y axis and the flat roll segment of the roll profile as the X axis, and the apparatus includes: a first obtaining module 301, a first calculating module 302 and a first rendering module 303.
The first obtaining module 301 is configured to obtain a preset width of the strip steel, a first preset length and a first radial depth of the edge drop control section, and a second preset length and a second radial depth of the strip breakage prevention control section; the first preset length is the axial distance between the second end of the side drop control section and the roller of the first end of the side drop control section, the first radial depth is the distance between the second end of the side drop control section and the X axis, the second preset length is the axial distance between the second end of the broken belt prevention control section and the roller of the first end of the broken belt prevention control section, and the second radial depth is the distance between the second end of the broken belt prevention control section and the X axis; for details, please refer to the related description in embodiment 2, which is not repeated herein.
The first calculating module 302 is configured to calculate a third axial depth of the strip breakage prevention control section, a second axial depth of the edge drop control section, and a first axial depth based on the preset width, the first preset length, and the second preset length of the strip steel; the third axial depth is the distance between the second end of the breakage-proof belt control section and the Y axis, the second axial depth is the distance between the second end of the edge drop control section and the Y axis, and the first axial depth is the distance between the first end of the edge drop control section and the Y axis; for details, please refer to the related description in embodiment 2, which is not repeated herein.
A first drawing module 303, configured to draw the roll shape based on the first preset length, the first axial depth, the second axial depth, the third axial depth, the first radial depth, and the second radial depth. For details, please refer to the related description in embodiment 2, which is not repeated herein.
In one or more embodiments, as shown in fig. 8, the apparatus further includes a second obtaining module 304, a second calculating module 305, a third calculating module 306, and a second rendering module 307.
A second obtaining module 304, configured to obtain a third preset length of the roller profile; for details, please refer to the related description in embodiment 2, which is not repeated herein.
A second calculating module 305, configured to calculate a fourth axial depth of the deviation control section based on the third preset length; the fourth axial depth is the distance from the second end of the deviation control section to the Y axis; for details, please refer to the related description in embodiment 2, which is not repeated herein.
The third calculating module 306 is configured to calculate a slope of the deviation control section based on a circle center coordinate and a second end coordinate of the breakage-preventing belt control section; for details, please refer to the related description in embodiment 2, which is not repeated herein.
And a second drawing module 307, configured to draw the deviation control section of the roller profile based on the slope and the fourth axial depth of the deviation control section. For details, please refer to the related description in embodiment 2, which is not repeated herein.
The effect of the roll forming apparatus of this embodiment can be referred to the related description in embodiment 2, and is not described herein.
Example 4
The present embodiment provides a computer device, as shown in fig. 9, the computer device includes a processor 401 and a memory 402, where the processor 401 and the memory 402 may be connected by a bus or by other means, and fig. 9 takes the connection by the bus as an example.
The memory 402, which is a non-transitory computer-readable storage medium, may be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as program instructions/modules corresponding to the roll shape forming method in the embodiment of the present invention (e.g., the first acquiring module 401, the first calculating module 402, and the first rendering module 403 in the above-described embodiments; the second acquiring module 304, the second calculating module 305, the third calculating module 306, and the second rendering module 307). The processor 401 executes various functional applications and data processing of the processor, i.e., implements the roll-forming method described above, by running non-transitory software programs, instructions, and modules stored in the memory 402.
The memory 402 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor 401, and the like. Further, the memory 402 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 402 may optionally include memory located remotely from processor 401, which may be connected to processor 401 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
Embodiments of the present invention further provide a computer-readable storage medium, where computer-executable instructions are stored, and the computer-executable instructions may execute the roller shape forming method in any of the above method embodiments. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
The embodiment of the present application further provides a computer program product, and when the computer program product runs on a computer device, the method for forming a roll shape in embodiment 2 is implemented.
The embodiment also provides a UCMW cold rolling mill, which comprises the working roll of the cold rolling mill provided by the embodiment 1, wherein the working roll is arranged on the UCMW cold rolling mill and used for carrying out roll treatment on the strip steel.
The third preset length of the roll profile of the working roll is 1420mm, the preset width of the strip steel is 1230mm, and the starting position of the roll profile of the prior art is 130mm away from the edge of the strip steel, the depth of the corresponding roll profile of the edge of the strip steel is 100 μm, and the depth of the roll profile of the edge of the working roll is 300 μm, as shown in fig. 10 and 11, when the working roll of the cold rolling mill provided in example 1 is compared with the working roll with the roll profile of the single arc chamfer; compared with the prior art, the working roll of the cold rolling mill provided by the embodiment 1 has the advantages that the roll shape depth of the edge of the strip steel is increased to 120 mu m from 100 mu m, and the edge drop control level of the rolling mill is further improved; the depth of the roller profile at the edge of the working roller is reduced from 300 mu m to 183 mu m, and the grinding loss of the roller is reduced. In addition, the change rate of each section of curve of the new roller profile is controlled to be not higher than that of the single-arc roller profile by increasing the insertion depth of the roller profile.
TABLE 1
As shown in Table 1, comparing the roller shape change rate of different roller shapes in two arc regions, the roller shape chamfer change rate of the first arc region in example 1 is 0.667, which is basically consistent with the change rate of a single arc roller shape; in the second section of arc area, namely the edge area of the strip steel, the change rate of the roller-shaped chamfer of the embodiment 1 is 1, which is lower than that of a single arc roller-shaped chamfer, thereby greatly reducing the risk of strip breakage and theoretically proving the rationality of the design of the strip breakage prevention roller-shaped chamfer.
According to actual conditions, the roll shape parameters of the working roll of the cold rolling mill in the embodiment 1 are obtained: the preset width of the strip steel is 1230mm, the first preset length is 150mm, the second preset length is 20mm, the first radial depth is 100 mu m, the second radial depth is 120 mu m, and the third preset length is 1420 mm. The roll profile curve (as shown in FIG. 12) can be obtained by inputting the roll profile parameters into a computer system. And providing the roll profile curve between the grinding rolls to finish grinding the working roll. The working rolls are put into the S1 and S2 stand structures of the 1420 acid continuous rolling mill group for debugging, and after the debugging amount of about 1 ten thousand tons is finished in the early period, the silicon steel is controlled to descendThe production effect is obviously improved, the production process is stable, and no belt breakage occurs. Selecting the edge reduction levels of the non-oriented silicon steel before and after the roll shape debugging for comparison, and cold rolling the convexity C25The proportion of less than or equal to 7 mu m is increased from 72 percent to 86 percent, C25The average value is reduced from 6.3 mu m to 5.2 mu m; the proportion of the transverse uniform plate difference less than or equal to 7 mu m is increased from 52% to more than 68%, and the average value of the transverse uniform plate difference is reduced from 7.1 mu m to 6.4 mu m. The transverse same plate difference is the thickness difference of the cross section of the strip steel, the edge drop is the thickness reduction amount of the edge of the strip steel, and the transverse same plate difference can be improved by reducing the edge drop.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (12)
1. The utility model provides a cold rolling mill work roll which characterized in that, roll type one side of work roll is first flat roll section, the opposite side of roll type includes:
a second flat roller section, a first end of which is connected with the first flat roller section;
the first end of the edge drop control section is tangent to the second end of the second flat roller section, the edge drop control section is a circular arc, and the circle center of the edge drop control section faces the working roller;
the first end of the strip breakage preventing control section is tangent to the second end of the edge drop control section, the strip breakage preventing control section is in a circular arc shape, the circle center of the strip breakage preventing control section is opposite to the working roll, and the strip breakage preventing control section is used for enabling the working roll to be in contact with the edge of the strip steel in a working state;
and the deviation control section is connected with the second end of the breakage-proof belt control section.
2. The work roll of claim 1, wherein the tracking control section is a straight line section that is tangent to the second end of the belt breakage prevention control section.
3. The work roll of claim 1 or 2, wherein the first radial depth of the second end of the edge drop control section from the second flat roll section is 60 μm to 120 μm, the second radial depth of the second end of the strip breakage prevention control section from the second flat roll section is 100 μm to 160 μm, and the difference between the second radial depth and the first radial depth is 0 μm to 40 μm; and/or
The axial distance between the second end of the edge drop control section and the roller at the first end of the edge drop control section is 110-150 mm, and the axial distance between the second end of the strip breakage prevention control section and the roller at the first end of the strip breakage prevention control section is 15-30 mm.
4. A method for forming a roll profile of a work roll according to any one of claims 1 to 3, wherein a rectangular coordinate system is established with a roll axial center line of the roll profile as a Y-axis and a flat roll segment of the roll profile as an X-axis, the method comprising:
acquiring a preset width of the strip steel, a first preset length and a first radial depth of a side drop control section and a second preset length and a second radial depth of a broken strip prevention control section; the first preset length is the axial distance between the second end of the side drop control section and the roller of the first end of the side drop control section, the first radial depth is the distance between the second end of the side drop control section and the X axis, the second preset length is the axial distance between the second end of the broken belt prevention control section and the roller of the first end of the broken belt prevention control section, and the second radial depth is the distance between the second end of the broken belt prevention control section and the X axis;
calculating a third axial depth of the strip breakage prevention control section, a second axial depth of the edge drop control section and a first axial depth based on the preset width, the first preset length and the second preset length of the strip steel; the third axial depth is the distance between the second end of the breakage-proof belt control section and the Y axis, the second axial depth is the distance between the second end of the edge drop control section and the Y axis, and the first axial depth is the distance between the first end of the edge drop control section and the Y axis;
and drawing the roller shape based on the first preset length, the first axial depth, the second axial depth, the third axial depth, the first radial depth and the second radial depth.
5. The roll form forming method of claim 4, further comprising:
acquiring a third preset length of the roller profile;
calculating a fourth axial depth of the deviation control section based on the third preset length; the fourth axial depth is the distance from the second end of the deviation control section to the Y axis;
calculating the slope of the deviation control section based on the circle center coordinate and the second end coordinate of the breakage-proof belt control section;
and drawing the deviation control section of the roller type based on the slope and the fourth axial depth of the deviation control section.
6. A roll profile forming method according to claim 4 or 5, wherein the edge drop control section is drawn by a first mathematical model which is:
wherein, the x1Representing the first axial depth, said x2Representing said second axial depth, said L1Represents the first preset length, y2Representing the first radial depth; and/or
Drawing the band-breakage preventing control section through a second mathematical model, wherein the second mathematical model is as follows:
in the formula, m2、n2Respectively representing the abscissa and ordinate of the circle center of the breakage-proof belt control section, m1、n1Respectively representing the abscissa and the ordinate of the circle center of the edge drop control section, x2Representing said second axial depth, y2Representing said first radial depth, x3Representing said third axial depth, y3Representing the second radial depth.
7. A roll form forming method according to claim 6, wherein said breakage prevention control section is drawn by a third mathematical model which is:
in the formula, x3、y3Respectively representing a third axial depth and a second radial depth, x4Representing said fourth axial depth, m2、n2Respectively showing the abscissa and the ordinate of the circle center of the breakage-proof belt control section.
8. A roll profile forming apparatus for a work roll according to any one of claims 1 to 3, wherein a rectangular coordinate system is established with a roll axial center line of the roll profile as a Y-axis and a flat roll segment of the roll profile as an X-axis, the apparatus comprising:
the first acquisition module is used for acquiring the preset width of the strip steel, the first preset length and the first radial depth of the edge drop control section and the second preset length and the second radial depth of the strip breakage prevention control section; the first preset length is the axial distance between the second end of the side drop control section and the roller of the first end of the side drop control section, the first radial depth is the distance between the second end of the side drop control section and the X axis, the second preset length is the axial distance between the second end of the broken belt prevention control section and the roller of the first end of the broken belt prevention control section, and the second radial depth is the distance between the second end of the broken belt prevention control section and the X axis;
the first calculation module is used for calculating a third axial depth of the strip breakage prevention control section, a second axial depth of the edge drop control section and a first axial depth based on the preset width, the first preset length and the second preset length of the strip steel; the third axial depth is the distance between the second end of the breakage-proof belt control section and the Y axis, the second axial depth is the distance between the second end of the edge drop control section and the Y axis, and the first axial depth is the distance between the first end of the edge drop control section and the Y axis;
and the first drawing module is used for drawing the roller shape based on the first preset length, the first axial depth, the second axial depth, the third axial depth, the first radial depth and the second radial depth.
9. The roll form forming apparatus of claim 8, further comprising:
the second obtaining module is used for obtaining a third preset length of the roller type;
the second calculation module is used for calculating a fourth axial depth of the deviation control section based on the third preset length; the fourth axial depth is the distance from the second end of the deviation control section to the Y axis;
the third calculation module is used for calculating the slope of the deviation control section based on the circle center coordinate and the second end coordinate of the breakage-proof belt control section;
and the second drawing module is used for drawing the deviation control section of the roller type based on the slope and the fourth axial depth of the deviation control section.
10. A computer device, comprising: a memory and a processor, the memory and the processor being communicatively coupled to each other, the memory having stored therein computer instructions, the processor executing the computer instructions to perform the roll form forming method of any one of claims 4-7.
11. A computer-readable storage medium storing computer instructions for causing a computer to perform the roll form forming method of any one of claims 4-7.
12. A UCMW cold rolling mill, comprising the cold rolling mill work roll of any of claims 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210294922.2A CN114472530B (en) | 2022-03-23 | 2022-03-23 | Cold rolling mill working roll, roll forming method and UCMW cold rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210294922.2A CN114472530B (en) | 2022-03-23 | 2022-03-23 | Cold rolling mill working roll, roll forming method and UCMW cold rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114472530A true CN114472530A (en) | 2022-05-13 |
| CN114472530B CN114472530B (en) | 2024-03-08 |
Family
ID=81488234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210294922.2A Active CN114472530B (en) | 2022-03-23 | 2022-03-23 | Cold rolling mill working roll, roll forming method and UCMW cold rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114472530B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10277614A (en) * | 1997-04-02 | 1998-10-20 | Kawasaki Steel Corp | Method for reducing edge drop of metal strip |
| CN101214501A (en) * | 2007-12-27 | 2008-07-09 | 武汉钢铁(集团)公司 | Working roll consideration to strip steel convexity, edge drop control and abrasion control and using method |
| CN101254508A (en) * | 2008-01-30 | 2008-09-03 | 武汉钢铁(集团)公司 | Work roll with steel rim drop-control and flat degree control |
| CN108941204A (en) * | 2018-06-04 | 2018-12-07 | 北京科技大学 | A kind of double tapered working roll and its roll contour design method |
| CN110860561A (en) * | 2019-11-21 | 2020-03-06 | 常州机电职业技术学院 | Method for coordinately controlling straight section of electrical steel through short-process cold rolling and hot rolling |
| CN112588830A (en) * | 2020-11-19 | 2021-04-02 | 北京科技大学 | Six-roller cold rolling mill plate shape control working roller suitable for non-shifting roller and design method thereof |
| CN113239494A (en) * | 2021-05-31 | 2021-08-10 | 东北大学 | Method for designing multi-section type working roll profile of HC cold rolling mill |
| CN214639113U (en) * | 2021-05-07 | 2021-11-09 | 新余钢铁股份有限公司 | Rolling working roll for non-oriented silicon steel |
-
2022
- 2022-03-23 CN CN202210294922.2A patent/CN114472530B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10277614A (en) * | 1997-04-02 | 1998-10-20 | Kawasaki Steel Corp | Method for reducing edge drop of metal strip |
| CN101214501A (en) * | 2007-12-27 | 2008-07-09 | 武汉钢铁(集团)公司 | Working roll consideration to strip steel convexity, edge drop control and abrasion control and using method |
| CN101254508A (en) * | 2008-01-30 | 2008-09-03 | 武汉钢铁(集团)公司 | Work roll with steel rim drop-control and flat degree control |
| CN108941204A (en) * | 2018-06-04 | 2018-12-07 | 北京科技大学 | A kind of double tapered working roll and its roll contour design method |
| CN110860561A (en) * | 2019-11-21 | 2020-03-06 | 常州机电职业技术学院 | Method for coordinately controlling straight section of electrical steel through short-process cold rolling and hot rolling |
| CN112588830A (en) * | 2020-11-19 | 2021-04-02 | 北京科技大学 | Six-roller cold rolling mill plate shape control working roller suitable for non-shifting roller and design method thereof |
| CN214639113U (en) * | 2021-05-07 | 2021-11-09 | 新余钢铁股份有限公司 | Rolling working roll for non-oriented silicon steel |
| CN113239494A (en) * | 2021-05-31 | 2021-08-10 | 东北大学 | Method for designing multi-section type working roll profile of HC cold rolling mill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114472530B (en) | 2024-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2008504128A (en) | Method for rolling a strip in a roll stand | |
| CN110052497B (en) | Complete set of roll shape and plate shape control method for hot continuous rolling finishing mill unit | |
| CN113239494B (en) | Design method of multistage working roll shape of HC cold rolling mill | |
| CN114472530A (en) | Cold rolling mill working roll, roll shape forming method and UCMW cold rolling mill | |
| CN114653755B (en) | Cold rolling mill working roll, roll forming method and UCM cold rolling mill | |
| Mazur et al. | Efficient cold rolling and coiling modes | |
| CN109365542B (en) | Method for calculating abrasion of rough rolling vertical roll | |
| CN111346916A (en) | Strip steel production method for reducing cold and hard roll rib roll marks | |
| JP2015054334A (en) | Rolling method of metal strip | |
| CN113198842B (en) | Working roll and rolling control method | |
| CN110153197B (en) | Loop tension control method and system for continuous rolling annealing pickling line | |
| CN105344719B (en) | A kind of belt steel rolling control method and roll control system | |
| CN109926458B (en) | Thin strip steel with stable surface oil film and production method thereof | |
| JP3637901B2 (en) | Cold rolling method for metal sheet | |
| CN118268370A (en) | Cold-rolled silicon steel production control method, device, equipment and medium | |
| CN116174492A (en) | Composite roll profile curve of hot rolling working roll and design method thereof | |
| CN118268369A (en) | Cold-rolled silicon steel production control method, device, equipment and medium | |
| CN114951285B (en) | Working roll for linearly reducing strip edge drop of plate and roll shape design method | |
| JP7512990B2 (en) | Method for cold rolling metal strip and method for repairing backup roll | |
| CN111438185B (en) | Acid continuous rolling production method of ultrahigh-strength steel and acid continuous rolling unit | |
| CN108817101A (en) | A kind of slight center wave rolling method based on the curved roll shifting model optimization of Siemens | |
| JP2000218308A (en) | Cold-rolling roll, cold-rolling method, and cold-rolled metal sheet | |
| RU2370330C1 (en) | Procedure for preparing working rolls of stands with axial shifting | |
| CN117380753A (en) | Control method and device for head thickness deviation of hot continuous rolling strip steel and electronic equipment | |
| RU2225272C2 (en) | Method for cold rolling of strips in multistand mill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |