CN113926853B - Rolling method and device for high-grade non-oriented silicon steel - Google Patents
Rolling method and device for high-grade non-oriented silicon steel Download PDFInfo
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- CN113926853B CN113926853B CN202111083146.3A CN202111083146A CN113926853B CN 113926853 B CN113926853 B CN 113926853B CN 202111083146 A CN202111083146 A CN 202111083146A CN 113926853 B CN113926853 B CN 113926853B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
- B21B45/0245—Lubricating devices
- B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
- B21B45/0251—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for strips, sheets, or plates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/221—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by cold-rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2265/00—Forming parameters
- B21B2265/12—Rolling load or rolling pressure; roll force
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2267/00—Roll parameters
- B21B2267/18—Roll crown; roll profile
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2269/00—Roll bending or shifting
- B21B2269/02—Roll bending; vertical bending of rolls
- B21B2269/06—Intermediate roll bending
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Abstract
The invention discloses a rolling method of high-grade non-oriented silicon steel, which is used for controlling a Sendzimir twenty-high roll mill to roll raw material strip steel, and comprises the following steps: determining the roll shape of a first intermediate roll and the roll shape of a second intermediate roll of the Send Mier twenty-high rolling mill according to the specification parameters of the raw material strip steel; determining the effective plane quantity of the first intermediate roller according to the alloy content of the raw material strip steel and the specification parameters; determining a convexity value of a radial adjusting mechanism of the Sendzimir twenty-high rolling mill according to the specification parameters; according to the alloy content, setting load distribution and tension when the Senkymill twenty-high roll mill rolls; rolling the raw material strip steel according to the set load distribution and tension distribution, and spraying with the preset emulsion flow in the rolling process to obtain a finished product. The invention can reduce brittle fracture of high-grade non-oriented silicon steel in the rolling process and improve the rolling stability and production efficiency.
Description
Technical Field
The invention relates to the field of cold rolling, in particular to a rolling method and device for high-grade non-oriented silicon steel.
Background
The high-grade non-oriented silicon steel is mainly applied to the fields of large and medium-sized motors, high-energy-efficiency compressors and the like, and has the characteristics of low iron loss and high magnetic induction. In the production process of the high-grade non-oriented silicon steel, the high-grade non-oriented silicon steel is generally rolled by a single stand because of being limited by the technical characteristics of high silicon content, large deformation resistance and the like, the high-grade non-oriented silicon steel is generally poor in plasticity, coiling brittle fracture is easy to occur in the rolling process of the high-grade non-oriented silicon steel by using a single stand rolling machine, and particularly the probability of coiling brittle fracture is also higher as the silicon content is increased. When the first pass rolling is finished or the second pass rolling is started, if rolling breakage occurs, the success rate of re-threading and coiling of the steel coil is almost zero, and the whole coil of steel coil cannot be rolled and is scrapped, so that the problem of brittle fracture of coiling of high-grade non-oriented silicon steel is urgently needed to be solved.
Disclosure of Invention
The invention aims to provide a rolling method and a rolling device for high-grade non-oriented silicon steel, which can reduce brittle fracture of the high-grade non-oriented silicon steel in the rolling process and improve the rolling stability and the production efficiency.
The embodiment of the invention provides the following scheme:
in a first aspect, an embodiment of the present invention provides a rolling method for high grade non-oriented silicon steel, for controlling a sendzimir twenty-high roll mill to roll a raw strip steel, the method comprising:
determining the roll shape of a first intermediate roll and the roll shape of a second intermediate roll of the Send Mier twenty-high rolling mill according to the specification parameters of the raw material strip steel;
Determining the effective plane quantity of the first intermediate roller according to the alloy content of the raw material strip steel and the specification parameters;
determining a convexity value of a radial adjusting mechanism of the Sendzimir twenty-high rolling mill according to the specification parameters;
According to the alloy content, setting load distribution and tension when the Senkymill twenty-high roll mill rolls;
rolling the raw material strip steel according to the set load distribution and tension distribution, and spraying with the preset emulsion flow in the rolling process to obtain a finished product.
Optionally, the determining the roll shape of the first intermediate roll and the roll shape of the second intermediate roll of the sendzimir twenty-high rolling mill according to the specification parameters of the raw material strip steel includes:
When the width of the raw material strip steel is in a preset width range, determining that the roll shape of the first intermediate roll is a conical roll, and determining that the roll shape of the second intermediate roll is a convexity roll.
Optionally, the determining the effective plane amount of the first intermediate roll according to the alloy content of the raw material strip steel and the specification parameters includes:
When the silicon content of the raw material strip steel is in a preset silicon content range and the width of the raw material strip steel is in the preset width range, determining the distance between the taper angle of the first intermediate roller and the edge of the raw material strip steel;
By the formula: and F= (W-2 b), determining the effective plane quantity of the first intermediate roller, wherein F is the effective plane quantity of the first intermediate roller, W is the width of the raw material strip steel, and b is the distance between the cone angle of the first intermediate roller and the edge of the raw material strip steel.
Optionally, when the silicon content of the raw material strip steel is in a preset silicon content range and the width of the raw material strip steel is in the preset width value range, determining the distance between the taper angle of the first intermediate roller and the edge of the raw material strip steel includes:
When the silicon content is 2.0wt% -4.5wt% and W is 900 mm-1050 mm, determining T=375mm and b=95-115 mm;
When the silicon content is 2.0wt% -4.5wt% and 1050mm is less than or equal to W is less than or equal to 1100mm, determining b=90 mm-100 mm;
when the silicon content is 2.0wt% -4.5wt% and W is not less than 1100mm and not more than 1200mm, determining b=85 mm-105 mm;
when the silicon content is 2.0 to 4.5wt% and W is 1200 to 1300mm, b=80 to 100mm is determined.
Optionally, the determining, according to the specification parameter, a convexity value of a radial adjustment mechanism of the sendzimir twenty-high rolling mill includes:
The convexity value of the radial adjustment mechanism is greater as the width of the given strip is smaller.
Optionally, the load distribution and the tension distribution when the sendzimir twenty-high rolling mill rolls are set according to the alloy content, and the method comprises the following steps:
when the silicon content of the raw material strip steel is within a preset silicon content range, the load distribution of the first pass is set to be 20% -50%, the load distribution of other passes is set to be 15% -45%, and the unit tension of each pass is set to be 4.0-25.0 kg/mm 2.
Optionally, rolling the strip steel according to set load distribution and tension, and spraying with a preset emulsion flow to obtain a finished product, including:
Setting the emulsion flow to be 20% -30% of the maximum emulsion flow when starting rolling in each pass; and setting the maximum emulsion flow to be 50-60% of the maximum flow when setting the stable rolling of each pass.
In a second aspect, an embodiment of the present invention provides a rolling apparatus for high grade non-oriented silicon steel, including:
The first determining module is used for determining the roll shape of a first intermediate roll and the roll shape of a second intermediate roll of the Send-Mier twenty-high rolling mill according to the specification parameters of the raw material strip steel;
the second determining module is used for determining the effective plane quantity of the first intermediate roller according to the alloy content of the raw material strip steel and the specification parameters;
The third determining module is used for determining convexity values of radial adjusting mechanisms of the Send-base Mier twenty-high rolling mill according to the specification parameters;
The setting module is used for setting load distribution and tension when the Send-Mummer twenty-high roll mill rolls according to the alloy content;
the control module is used for rolling the raw material strip steel according to the set load distribution and tension distribution, and spraying with the preset emulsion flow in the rolling process to obtain a finished product.
In a third aspect, an embodiment of the present invention provides a rolling apparatus for high grade non-oriented silicon steel, including:
a memory for storing a computer program;
a processor for executing the computer program to implement the steps of the rolling method of high grade non-oriented silicon steel as described in any one of the first aspect.
In a fourth aspect, an embodiment of the present invention provides a computer readable storage medium having stored thereon a computer program, which when executed by a processor, implements the steps of the rolling method of high grade non-oriented silicon steel of any one of the first aspects.
Compared with the prior art, the invention has the following advantages and beneficial effects:
According to the rolling method of the high-grade non-oriented silicon steel, provided by the embodiment of the invention, the roll shapes of the first intermediate roll and the second intermediate roll and the convexity value of the radial adjusting mechanism are determined according to the alloy content of the raw material strip steel and the specification parameters, the effective plane quantity of the first intermediate roll and the load distribution and tension during rolling are set, and the rolling is performed by adopting the preset emulsion flow during rolling, so that the tensile stress of the edge part of the strip steel can be effectively reduced, the brittle fracture of the tensile stress of the high-grade non-oriented silicon steel in the rolling process is avoided, the cold rolling stability of the high-grade non-oriented silicon steel is improved, and the quality of the high-grade non-oriented silicon steel is ensured. When the rolling method provided by the invention is used for rolling high-grade non-oriented silicon steel, the rolling process is stable, and the rolling brittle failure rate is reduced from 4.8% before the rolling method is used to 1.2% after the rolling method is used.
Drawings
In order to more clearly illustrate the embodiments of the present description or the technical solutions in the prior art, the drawings that are required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present description, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a rolling method of high-grade non-oriented silicon steel provided by an embodiment of the invention;
FIG. 2 is a schematic diagram of the rolling of a raw strip steel by a Senkymill twenty-high roll mill controlled by the rolling method of the high grade non-oriented silicon steel shown in FIG. 1;
Fig. 3 is a schematic structural view of a rolling device for high-grade non-oriented silicon steel according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the embodiments of the present invention.
Referring to fig. 1, fig. 1 is a flowchart of a rolling method of high grade non-oriented silicon steel according to an embodiment of the present invention. In the embodiment, the rolling method is used for controlling a Sendzimir twenty-high roll mill to roll the raw material strip steel 3 so as to obtain the finished product high-grade non-oriented silicon steel.
Referring to fig. 2, the sendzimir twenty-high rolling mill includes a first intermediate roll 1, a work roll 2, and a second intermediate roll (not shown). The first intermediate roll 1 comprises the Send-Mier twenty-high roll mill with a roll center 3, and the raw strip 4 is located between the work rolls 2 and symmetrical about the center 3 when rolling.
Please refer to fig. 1 again. The rolling method of the high-grade non-oriented silicon steel comprises the following steps:
and S1, determining the roll shape of the first intermediate roll 1 and the roll shape of the second intermediate roll 2 of the Send Mier twenty-high rolling mill according to the specification parameters of the raw material strip steel 4.
Specifically, when the width of the raw material strip steel 4 is within a preset width range, the roll shape of the first intermediate roll 1 is determined to be a cone roll, and the roll shape of the second intermediate roll 2 is determined to be a convexity roll.
In this embodiment, the preset width ranges from 900mm to 1050mm. The roll shape of the first intermediate roll 1 is a conical roll with two sections of conies at one end, the cone length is T, the cone height is h, the cone slope is the ratio of h to T, the value is 1-3 per mill, in the first intermediate roll 1, the conies of the last first intermediate roll 1 are on the working side, the conies of the next first intermediate roll 1 are on the transmission side, the lengths and the slopes of the conies are the same, the roll shape of the second intermediate roll 2 is a convexity roll with a curve adopting a parabolic form, and the convexity size is 0.05-0.15%.
And S2, determining the effective plane quantity of the first intermediate roller 1 according to the alloy content of the raw material strip steel 4 and the specification parameters. The method specifically comprises the following steps:
and S21, determining the distance between the taper angle of the first intermediate roller 1 and the edge of the raw material strip steel 4 when the silicon content of the raw material strip steel 4 is in a preset silicon content range and the width of the raw material strip steel 4 is in the preset width range. In one embodiment, when the silicon content is 2.0wt% to 4.5wt% and 900 mm.ltoreq.W.ltoreq.1050 mm, T=375mm, b=95 mm to 115mm is determined; when the silicon content is 2.0wt% -4.5wt% and 1050mm is less than or equal to W is less than or equal to 1100mm, determining that T=300 mm and b=90 mm-100 mm; when the silicon content is 2.0wt% -4.5wt% and W is not less than 1100mm and not more than 1200mm, determining T=255 mm and b=85 mm-105 mm; when the silicon content is 2.0wt% -4.5wt%, and 1200mm < W < 1300mm, T=255 mm, b=80 mm-100 mm is determined.
Step S22, by the formula: f= (W-2 b), determining an effective planar amount of the first intermediate roll 1, wherein F is the effective planar amount of the first intermediate roll 1, W is the width of the raw material strip 4, and b is the distance between the taper angle of the first intermediate roll 1 and the edge of the raw material strip 4.
And step S3, determining convexity values of radial adjusting mechanisms of the Sendzimir twenty-high rolling mill according to the specification parameters.
Specifically, as the width of the given raw material strip 4 is smaller, the convexity value of the radial adjustment mechanism (ASU) is larger.
In one embodiment, when 900 mm.ltoreq.W.ltoreq.1050 mm, ASU convexity is determined as 60;
when the W is more than or equal to 1050mm and less than or equal to 1100mm, determining that the convexity of the ASU is 50;
when W is not less than 1100mm and not more than 1200mm, determining that the convexity of the ASU is 40;
When W is not less than 1200mm and not more than 1300mm, the convexity of the ASU is determined to be 35.
In another embodiment, the ASU preset value before the first start rolling of the raw strip 4 may be determined by further combining the convexity of the second intermediate roll 2 with the width of the given raw strip 4, and in this embodiment, the convexity of the second intermediate roll 2 is 0.15%.
And S4, setting load distribution and tension when the Sendzimir twenty-high roll mill rolls according to the alloy content. In this embodiment, the raw strip 4 is subjected to a preset pass, for example, 4 to 7 passes.
When the silicon content of the raw material strip steel 4 is within a preset silicon content range, the load distribution of the first pass is set to be 20% -50%, the load distribution of other passes is set to be 15% -45%, and the unit tension of each pass is set to be 4.0-25.0 kg/mm 2.
And S5, rolling the raw material strip steel 4 according to the set load distribution and tension distribution, and spraying with the preset emulsion flow in the rolling process to obtain a finished product. In this embodiment, the thickness of the finished product is 0.2-1.0 mm.
The step S5 specifically includes:
Setting the emulsion flow to be 20% -30% of the maximum emulsion flow when starting rolling in each pass; and
When each pass of stable rolling is set, the maximum emulsion flow is set to be 50-60% of the maximum flow.
It will be appreciated that the above-mentioned preset values are confirmed at the rolling surface set-up boundaries prior to the first start.
Based on the same inventive concept as the method, the embodiment of the invention also provides a rolling device 100 for high-grade non-oriented silicon steel, as shown in fig. 3, which is a schematic structural diagram of the embodiment of the device 100, wherein the device 100 comprises:
The first determining module 10 is used for determining the roll shape of the first intermediate roll 1 and the roll shape of the second intermediate roll 2 of the Send-Mier twenty-high rolling mill according to the specification parameters of the raw material strip steel 4;
a second determining module 20, configured to determine an effective planar quantity of the first intermediate roll 1 according to the alloy content of the raw strip 4 and the specification parameter;
A third determining module 30, configured to determine a convexity value of a radial adjustment mechanism of the sendzimir twenty-high rolling mill according to the specification parameter;
A setting module 40, configured to set load distribution and tension when the sendzimir twenty-high rolling mill performs rolling according to the alloy content;
The control module 50 is used for rolling the raw material strip steel 4 according to the set load distribution and tension distribution, and spraying with the preset emulsion flow in the rolling process to obtain the finished product.
Based on the same inventive concept as in the previous embodiments, the present embodiments further provide a rolling apparatus for high grade non-oriented silicon steel, which includes a memory, a processor, and a computer program stored on the memory and capable of running on the processor, wherein the processor implements the steps of any one of the rolling methods for high grade non-oriented silicon steel when executing the program.
Based on the same inventive concept as in the previous embodiments, the embodiments of the present invention further provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method for determining the occurrence position of vibration modes of any one of the hot continuous rolling mills described above.
The technical scheme provided by the embodiment of the invention has at least the following technical effects or advantages:
according to the rolling method of the high-grade non-oriented silicon steel, provided by the embodiment of the invention, the roll shapes of the first intermediate roll 1 and the second intermediate roll 2 and the convexity value of the radial adjusting mechanism are determined according to the alloy content of the raw material strip steel 4 and the specification parameters, the effective plane quantity of the first intermediate roll 1 and the load distribution and tension during rolling are set, and the rolling is performed by adopting the preset emulsion flow during rolling, so that the tensile stress of the edge part of the strip steel can be effectively reduced, the brittle fracture of the tensile stress of the high-grade non-oriented silicon steel during rolling is avoided, the stability of the cold rolling of the high-grade non-oriented silicon steel is improved, and the quality of the high-grade non-oriented silicon steel is ensured. When the rolling method provided by the invention is used for rolling high-grade non-oriented silicon steel, the rolling process is stable, and the rolling brittle failure rate is reduced from 4.8% before the rolling method is used to 1.2% after the rolling method is used.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (modules, systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (7)
1. The rolling method of the high-grade non-oriented silicon steel is used for controlling a Send Mier twenty-high roll mill to roll raw material strip steel and is characterized by comprising the following steps:
determining the roll shape of a first intermediate roll and the roll shape of a second intermediate roll of the Send Mier twenty-high rolling mill according to the specification parameters of the raw material strip steel; when the width of the raw material strip steel is in a preset width range, determining that the roll shape of the first intermediate roll is a conical roll, and determining that the roll shape of the second intermediate roll is a convexity roll;
Determining the effective plane quantity of the first intermediate roller according to the alloy content of the raw material strip steel and the specification parameters;
determining a convexity value of a radial adjusting mechanism of the Sendzimir twenty-high rolling mill according to the specification parameters;
According to the alloy content, setting load distribution and tension when the Senkymill twenty-high roll mill rolls;
Rolling the raw material strip steel according to the set load distribution and tension distribution, and spraying with the preset emulsion flow in the rolling process to obtain a finished product;
The method for determining the effective plane quantity of the first intermediate roller according to the alloy content of the raw material strip steel and the specification parameters comprises the following steps:
When the silicon content of the raw material strip steel is in a preset silicon content range and the width of the raw material strip steel is in the preset width range, determining the distance between the taper angle of the first intermediate roller and the edge of the raw material strip steel;
by the formula: f= (W-2 b) determining an effective planar amount of the first intermediate roll, wherein F is the effective planar amount of the first intermediate roll, W is the width of the raw strip, and b is the distance between the taper angle of the first intermediate roll and the edge of the raw strip;
When the silicon content of the raw material strip steel is in a preset silicon content range and the width of the raw material strip steel is in the preset width value range, determining the distance between the taper angle of the first intermediate roller and the edge of the raw material strip steel comprises the following steps:
When the silicon content is 2.0wt% -4.5wt% and W is 900 mm-1050 mm, determining T=375mm and b=95-115 mm;
when the silicon content is 2.0wt% -4.5wt% and 1050mm is less than or equal to W is less than or equal to 1100mm, determining that T=300 mm and b=90 mm-100 mm;
when the silicon content is 2.0wt% -4.5wt% and W is not less than 1100mm and not more than 1200mm, determining T=255 mm and b=85 mm-105 mm;
when the silicon content is 2.0wt% -4.5wt% and W is not less than 1200mm and not more than 1300mm, determining T=255 mm and b=80 mm-100 mm;
Wherein T is the taper length of the taper roller.
2. The rolling method of high grade non-oriented silicon steel according to claim 1, wherein the determining the convexity value of the radial adjustment mechanism of the sendzimir twenty-high roll mill according to the specification parameter comprises:
The convexity value of the radial adjusting mechanism is larger as the width of the given raw material strip steel is smaller.
3. The rolling method of high grade non-oriented silicon steel according to claim 1, wherein the setting of the load distribution and the tension distribution of the sendzimir twenty-high roll mill during rolling according to the alloy content comprises:
When the silicon content of the raw material strip steel is within a preset silicon content range, the load distribution of the first pass is set to be 20% -50%, the load distribution of other passes is set to be 15% -45%, and the unit tension of each pass is set to be 4.0-25.0 kg/mm 2.
4. The rolling method of high grade non-oriented silicon steel according to claim 1, wherein the rolling of the raw strip steel according to the set load distribution and tension distribution and spraying with a preset emulsion flow rate during the rolling process to obtain a finished product comprises:
setting the emulsion flow to be 20% -30% of the maximum emulsion flow when starting rolling in each pass; and
When each pass of stable rolling is set, the maximum emulsion flow is set to be 50-60% of the maximum flow.
5. A rolling device for high grade non-oriented silicon steel, characterized in that it is used for controlling a sendzimir twenty-high roll mill to roll raw material strip steel, the device comprises:
The first determining module is used for determining the roll shape of a first intermediate roll and the roll shape of a second intermediate roll of the Send-Mier twenty-high rolling mill according to the specification parameters of the raw material strip steel; when the width of the raw material strip steel is in a preset width range, determining that the roll shape of the first intermediate roll is a conical roll, and determining that the roll shape of the second intermediate roll is a convexity roll;
the second determining module is used for determining the effective plane quantity of the first intermediate roller according to the alloy content of the raw material strip steel and the specification parameters;
The third determining module is used for determining convexity values of radial adjusting mechanisms of the Send-base Mier twenty-high rolling mill according to the specification parameters;
The setting module is used for setting load distribution and tension when the Send-Mummer twenty-high roll mill rolls according to the alloy content;
The control module is used for rolling the raw material strip steel according to the set load distribution and tension distribution, and spraying with the preset emulsion flow in the rolling process to obtain a finished product;
The method for determining the effective plane quantity of the first intermediate roller according to the alloy content of the raw material strip steel and the specification parameters comprises the following steps:
When the silicon content of the raw material strip steel is in a preset silicon content range and the width of the raw material strip steel is in the preset width range, determining the distance between the taper angle of the first intermediate roller and the edge of the raw material strip steel;
by the formula: f= (W-2 b) determining an effective planar amount of the first intermediate roll, wherein F is the effective planar amount of the first intermediate roll, W is the width of the raw strip, and b is the distance between the taper angle of the first intermediate roll and the edge of the raw strip;
When the silicon content of the raw material strip steel is in a preset silicon content range and the width of the raw material strip steel is in the preset width value range, determining the distance between the taper angle of the first intermediate roller and the edge of the raw material strip steel comprises the following steps:
When the silicon content is 2.0wt% -4.5wt% and W is 900 mm-1050 mm, determining T=375mm and b=95-115 mm;
when the silicon content is 2.0wt% -4.5wt% and 1050mm is less than or equal to W is less than or equal to 1100mm, determining that T=300 mm and b=90 mm-100 mm;
when the silicon content is 2.0wt% -4.5wt% and W is not less than 1100mm and not more than 1200mm, determining T=255 mm and b=85 mm-105 mm;
when the silicon content is 2.0wt% -4.5wt% and W is not less than 1200mm and not more than 1300mm, determining T=255 mm and b=80 mm-100 mm;
Wherein T is the taper length of the taper roller.
6. The rolling equipment for the high-grade non-oriented silicon steel is characterized by comprising the following components:
a memory for storing a computer program;
A processor for executing the computer program to implement the steps of the method of any one of claims 1 to 4.
7. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program is executed by a processor to implement the steps of the method of any of claims 1 to 4.
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