CN116422851A - Continuous casting process online control method based on quantitative evaluation of casting blank grain distribution - Google Patents
Continuous casting process online control method based on quantitative evaluation of casting blank grain distribution Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 85
- 238000005266 casting Methods 0.000 title claims abstract description 65
- 238000009749 continuous casting Methods 0.000 title claims abstract description 65
- 238000009826 distribution Methods 0.000 title claims abstract description 43
- 238000011158 quantitative evaluation Methods 0.000 title description 3
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 36
- 238000007405 data analysis Methods 0.000 claims abstract description 9
- 239000013078 crystal Substances 0.000 claims description 69
- 230000003628 erosive effect Effects 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 10
- 239000000498 cooling water Substances 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 5
- 230000004075 alteration Effects 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 2
- 238000007711 solidification Methods 0.000 abstract description 9
- 230000008023 solidification Effects 0.000 abstract description 9
- 238000009851 ferrous metallurgy Methods 0.000 abstract description 2
- 238000005530 etching Methods 0.000 description 7
- 238000012512 characterization method Methods 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000001953 recrystallisation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
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- 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
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention belongs to the technical field of continuous casting of ferrous metallurgy, in particular to an online control method of a continuous casting process based on quantitative assessment of grain distribution of a oriented silicon steel casting blank, which is scientific and efficient in comprehensive image processing and data analysis system and is used for analyzing solidification structure characteristics and quantitatively describing grain characteristics of the oriented silicon steel casting blank.
Description
Technical Field
The invention relates to the technical field of continuous casting of ferrous metallurgy, in particular to an online control method of a continuous casting process based on quantitative assessment of grain distribution of oriented silicon steel casting blanks.
Background
The oriented silicon steel is used as an important soft magnetic material in the fields of power production and transportation, has long production flow and high technical difficulty, and is a top product in the field of steel. The oriented silicon steel has the advantages of low iron loss and high magnetic induction, extremely high requirements on control of recrystallization structure and texture, and important influence on subsequent structure evolution and texture formation due to the initial solidification structure and grain characteristic change of the oriented silicon steel casting blank. Coarse and uneven grains are unfavorable for controlling the uniform distribution of inhibitors, the secondary recrystallization process and the subsequent recrystallization and texture evolution, and have great influence on the quality and performance of products. In the past, the research on the quality and the variability of the oriented silicon steel casting blank is mainly carried out through evaluating the overall change trend of an initial solidification structure, belongs to a rough statistical method, and has the defects of lack of quantitative data support and certain limitation.
Disclosure of Invention
In order to solve the problems in the prior art, the main purpose of the invention is to provide an online control method of a continuous casting process based on quantitative evaluation of grain distribution of an oriented silicon steel casting blank.
In order to solve the technical problems, according to one aspect of the present invention, the following technical solutions are provided:
an online control method of a continuous casting process based on quantitative assessment of grain distribution of an oriented silicon steel casting blank comprises the following steps:
s1, placing an oriented silicon steel casting blank in an acid erosion pool, obtaining clear crystal grain morphology after hot erosion, and photographing and recording to obtain a crystal grain morphology picture;
s2, determining a crystal boundary according to the crystal grain chromatic aberration for the characteristic position of a casting blank in the crystal grain morphology picture, carrying out crystal grain depiction by using image processing software, outlining the crystal grain boundary by using black lines, and filling different crystal grain types by using different colors;
s3, guiding the picture after the grain is delineated into an image processing system, and rapidly and accurately obtaining grain characteristic parameters;
s4, importing the characteristic parameters of the crystal grains into a data analysis system to obtain quantitative information of distribution of the crystal grains;
s5, judging whether the continuous casting process parameters need to be adjusted according to the grain distribution quantitative information parameters;
if yes, adjusting the continuous casting process parameters and then carrying out continuous casting;
if not, adopting the existing continuous casting process parameters to carry out continuous casting.
As a preferable scheme of the continuous casting process on-line control method based on quantitative assessment of grain distribution of oriented silicon steel casting blanks, the invention comprises the following steps: prior to the step S1, the method further comprises,
s0. the casting blank is milled, ground and polished to prepare the casting blank with smooth surface.
As a preferable scheme of the continuous casting process on-line control method based on quantitative assessment of grain distribution of oriented silicon steel casting blanks, the invention comprises the following steps: after the step S5, further including,
s6, storing the picture, the grain distribution quantitative information and the continuous casting process parameter adjustment information in a storage system.
As a preferable scheme of the continuous casting process on-line control method based on quantitative assessment of grain distribution of oriented silicon steel casting blanks, the invention comprises the following steps: in the step S1, the etching time is 20-25 min.
As a preferable scheme of the continuous casting process on-line control method based on quantitative assessment of grain distribution of oriented silicon steel casting blanks, the invention comprises the following steps: in the step S2, the characteristic positions of the casting blank comprise width direction edge parts, 1/4 parts and the center part.
As a preferable scheme of the continuous casting process on-line control method based on quantitative assessment of grain distribution of oriented silicon steel casting blanks, the invention comprises the following steps: in the step S2, the image processing software is Photoshop software.
As a preferable scheme of the continuous casting process on-line control method based on quantitative assessment of grain distribution of oriented silicon steel casting blanks, the invention comprises the following steps: in the step S3, the grain characteristic parameters include grain position, grain size, and grain number.
As a preferable scheme of the continuous casting process on-line control method based on quantitative assessment of grain distribution of oriented silicon steel casting blanks, the invention comprises the following steps: in the step S5, the continuous casting process parameters include cooling water amount, drawing speed, electromagnetic stirring current and electromagnetic stirring voltage.
The beneficial effects of the invention are as follows:
the invention provides a continuous casting process online control method based on quantitative assessment of grain distribution of an oriented silicon steel casting blank, which is scientific and efficient in comprehensive image processing and data analysis system and is used for analyzing solidification structure characteristics and quantitatively describing grain characteristics of the oriented silicon steel casting blank.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a graph showing the morphology of the grains before and after the grain characterization process according to the present invention;
FIG. 2 is a graph showing the morphology of the crystal grains obtained after thermal etching according to example 1 of the present invention;
FIG. 3 is a graph showing the morphology of the grains before and after the grain characterization process according to example 1 of the present invention;
FIG. 4 is a graph showing the ratio of the solidification structure according to example 1 of the present invention;
FIG. 5 is a graph showing the number density information of the crystal grains according to embodiment 1 of the present invention;
FIG. 6 is a chart showing the ratio of the solidification structure according to example 2 of the present invention;
fig. 7 is a graph showing the number density information of the crystal grains according to embodiment 2 of the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description will be made clearly and fully with reference to the technical solutions in the embodiments, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides an online control method of a continuous casting process based on quantitative assessment of grain distribution of an oriented silicon steel casting blank, which has the following positive effects:
(1) The method is simple to operate, and rapid in pickling, inspection and analysis processes, and meets the continuous casting production rhythm of the on-site oriented silicon steel;
(2) The image recognition, data analysis and result archiving processes realize automation and informatization, and are simple to operate;
(3) The quantitative analysis result of the crystal grain is real, accurate and diversified, and can provide scientific and quantitative data support for revealing the regulation and control effect of continuous casting process parameters (such as drawing speed, cooling water quantity and current and voltage values of an electromagnetic stirring device) on the crystal grain characteristics.
According to one aspect of the invention, the invention provides the following technical scheme:
an online control method of a continuous casting process based on quantitative assessment of grain distribution of an oriented silicon steel casting blank comprises the following steps:
s1, placing an oriented silicon steel casting blank in an acid erosion pool, obtaining clear crystal grain morphology after hot erosion, and photographing and recording to obtain a crystal grain morphology picture;
s2, determining a crystal boundary according to the crystal grain chromatic aberration for the characteristic position of a casting blank in the crystal grain morphology picture, carrying out crystal grain characterization by using image processing software, wherein the boundary of the crystal grain is sketched by black lines, and different crystal grain types are filled with different colors, as shown in figure 1;
s3, guiding the picture after the grain is delineated into an image processing system, and rapidly and accurately obtaining grain characteristic parameters;
s4, importing the characteristic parameters of the crystal grains into a data analysis system, and rapidly drawing a correlation curve to obtain quantitative information of distribution of the crystal grains;
s5, judging whether the continuous casting process parameters need to be adjusted according to the grain distribution quantitative information parameters;
if yes, adjusting the continuous casting process parameters and then carrying out continuous casting;
if not, adopting the existing continuous casting process parameters to carry out continuous casting.
Preferably, before the step S1, the method further includes,
s0. the casting blank with smooth surface is prepared by milling, grinding and polishing the surface to be corroded and observed, and the surface is required to be free of any processing trace affecting corrosion and observation.
Preferably, after the step S5, further includes,
s6, storing the quantitative information of the picture and the grain distribution and the continuous casting process parameter adjustment information in a storage system to form a historical database, so that accurate adjustment and reference of the continuous casting process parameter are facilitated, and the continuous casting quality is improved.
Preferably, in the step S1, the etching solution is a hydrochloric acid solution with a concentration of 5-10wt%, the etching time is 20-25 min, and the etching temperature is 78-80 ℃.
Preferably, in the step S2, the characteristic position of the casting blank includes a width direction edge, 1/4 of the width direction edge, and a center.
Preferably, in the step S2, the image processing software is Photoshop software.
Preferably, in the step S3, the grain characteristic parameters include a grain position, a grain size, and a grain number.
Preferably, in the step S5, the continuous casting process parameters include cooling water amount, drawing speed, electromagnetic stirring current and electromagnetic stirring voltage.
The technical scheme of the invention is further described below by combining specific embodiments.
The etching solution used in the examples below was a 10wt% hydrochloric acid solution and the etching temperature was 80 ℃.
Example 1
An online control method of a continuous casting process based on quantitative assessment of grain distribution of an oriented silicon steel casting blank, which is produced by continuous casting of the continuous casting blank, wherein the continuous casting pulling speed is 1.0m/min, and a secondary cooling section electromagnetic stirring device (current is 200A) is started, and the online control method comprises the following steps:
s0. the casting blank is milled, ground and polished to prepare the casting blank with smooth surface, and the surface is required to be free of any processing trace affecting corrosion and observation.
S1, placing a casting blank in an acid erosion pool, thermally eroding for 25 minutes to obtain a clear crystal grain morphology, and photographing and recording to obtain a crystal grain morphology picture, wherein the picture is shown in FIG. 2;
s2, determining grain boundaries at 1/4 positions in the width direction of a casting blank in a grain morphology picture according to grain chromatic aberration, carrying out grain characterization by using Photoshop software, wherein the grain boundaries are delineated by black lines, columnar crystal grains close to an inner arc side are filled with red, columnar crystal grains close to an outer arc side are filled with yellow, equiaxed crystal grains are filled with blue, and the grain morphology pairs before and after the grain characterization treatment are shown in figure 3;
s3, guiding the picture after the grain is delineated into an image processing system, and rapidly and accurately obtaining characteristic parameters such as the position, the size and the number of the grains;
s4, importing the characteristic parameters of the crystal grains into a data analysis system, rapidly drawing a correlation curve to obtain quantitative information of distribution of the crystal grains, wherein the information of the solidification structure occupation ratio is shown in FIG. 4, and the information of the number density of the crystal grains is shown in FIG. 5;
s5, judging whether the continuous casting process parameters need to be adjusted according to the grain distribution quantitative information parameters; the results show that the proportion of columnar crystals at the inner arc side of the casting blank is 17.095 percent, and the number density of crystal grains is 0.0827/mm 2 The columnar crystal proportion of the outer arc side of the casting blank is 11.888 percent, and the number density of crystal grains is 0.0931/mm 2 The proportion difference of columnar crystals at the inner arc side and the outer arc side of the casting blank is larger, so that the cooling water quantity at the inner arc side of the casting blank needs to be reduced, the consistency of the columnar crystal characteristics at the inner arc side and the outer arc side of the casting blank is realized, and the quality of the casting blank is optimized;
s6, storing the picture, the grain distribution quantitative information and the continuous casting process parameter adjustment information in a storage system.
Example 2
An online control method of a continuous casting process based on quantitative assessment of grain distribution of an oriented silicon steel casting blank, which is produced by continuous casting of the continuous casting blank, wherein the continuous casting drawing speed is 1.2m/min, and a secondary cooling section electromagnetic stirring device is not started, comprises the following steps:
s0. the casting blank is milled, ground and polished to prepare the casting blank with smooth surface, and the surface is required to be free of any processing trace affecting corrosion and observation.
S1, placing a casting blank in an acid erosion pool, thermally eroding for 25 minutes to obtain clear crystal grain morphology, and photographing and recording to obtain a crystal grain morphology picture;
s2, determining grain boundaries at 1/4 positions in the width direction of a casting blank in a crystal grain morphology picture according to crystal grain chromatic aberration, carrying out crystal grain characterization by using Photoshop software, wherein the boundaries of the crystal grains are outlined by black lines, columnar crystal grains close to an inner arc side are filled with red, columnar crystal grains close to an outer arc side are filled with yellow, and equiaxial crystal grains are filled with blue;
s3, guiding the picture after the grain is delineated into an image processing system, and rapidly and accurately obtaining characteristic parameters such as the position, the size and the number of the grains;
s4, importing the characteristic parameters of the crystal grains into a data analysis system, rapidly drawing a correlation curve, and obtaining quantitative information of distribution of the crystal grains, wherein the information of the solidification structure ratio is shown in FIG. 6, and the information of the number density of the crystal grains is shown in FIG. 7.
S5, judging whether the continuous casting process parameters need to be adjusted according to the grain distribution quantitative information parameters; the results show that the proportion of columnar crystals at the inner arc side of the casting blank is 50.222 percent, and the number density of crystal grains is 0.0524/mm 2 The columnar crystal proportion of the outer arc side of the casting blank is 44.721 percent, and the number density of crystal grains is 0.0410/mm 2 The ratio difference of columnar crystals at the inner arc side and the outer arc side of the casting blank is larger, and the number density of crystal grains is smaller, so that the cooling water quantity and the pulling speed in the on-site process parameters are required to be adjusted, the cooling water quantity at the outer arc side of the casting blank is increased, the continuous casting pulling speed is reduced, the consistency of columnar crystal characteristics at the inner arc side and the outer arc side of the casting blank and the densification of the number density of crystal grains are expected to be realized, and the quality of the casting blank is further optimized.
S6, storing the picture, the grain distribution quantitative information and the continuous casting process parameter adjustment information in a storage system.
According to the embodiment, the comprehensive image processing and data analysis system scientifically and efficiently analyzes the solidification structure characteristics and quantitatively describes the grain characteristics of the oriented silicon steel casting blank, the grain distribution quantitative information is real, accurate and diversified in result, scientific adjustment basis is provided for parameters including the drawing speed, the cooling water quantity and the current and voltage values of the electromagnetic stirring device of the continuous casting process based on the grain distribution quantitative information, and the method has a great application prospect for improving the quality, the performance, the competitiveness and the like of oriented silicon steel serving as an important soft magnetic material in the fields of electric power production and transportation.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the content of the present invention or direct/indirect application in other related technical fields are included in the scope of the present invention.
Claims (8)
1. The online control method of the continuous casting process based on quantitative assessment of grain distribution of the oriented silicon steel casting blank is characterized by comprising the following steps:
s1, placing an oriented silicon steel casting blank in an acid erosion pool, obtaining clear crystal grain morphology after hot erosion, and photographing and recording to obtain a crystal grain morphology picture;
s2, determining a crystal boundary according to the crystal grain chromatic aberration for the characteristic position of a casting blank in the crystal grain morphology picture, carrying out crystal grain depiction by using image processing software, outlining the crystal grain boundary by using black lines, and filling different crystal grain types by using different colors;
s3, guiding the picture after the grain is delineated into an image processing system, and rapidly and accurately obtaining grain characteristic parameters;
s4, importing the characteristic parameters of the crystal grains into a data analysis system to obtain quantitative information of distribution of the crystal grains;
s5, judging whether the continuous casting process parameters need to be adjusted according to the grain distribution quantitative information parameters;
if yes, adjusting the continuous casting process parameters and then carrying out continuous casting;
if not, adopting the existing continuous casting process parameters to carry out continuous casting.
2. The on-line control method for continuous casting process based on quantitative assessment of grain distribution of oriented silicon steel casting blank according to claim 1, further comprising, before step S1,
s0. the casting blank is milled, ground and polished to prepare the casting blank with smooth surface.
3. The on-line control method for continuous casting process based on quantitative assessment of grain distribution of oriented silicon steel casting blank according to claim 1, further comprising, after step S5,
s6, storing the picture, the grain distribution quantitative information and the continuous casting process parameter adjustment information in a storage system.
4. The online control method for continuous casting process based on quantitative assessment of grain distribution of oriented silicon steel casting blank according to any one of claims 1 to 3, wherein in step S1, the erosion time is 20 to 25min.
5. The online control method for continuous casting process based on quantitative assessment of grain distribution of oriented silicon steel casting blank according to any one of claims 1 to 3, wherein in step S2, the characteristic positions of the casting blank include width direction edge, 1/4 place and center place.
6. A continuous casting process on-line control method based on quantitative assessment of grain distribution of oriented silicon steel casting blank according to any one of claims 1-3, wherein in step S2, the image processing software is Photoshop software.
7. A continuous casting process on-line control method based on quantitative assessment of grain distribution of oriented silicon steel casting blank according to any one of claims 1-3, wherein in step S3, grain characteristic parameters include grain position, grain size, and grain number.
8. The online control method for continuous casting process based on quantitative assessment of grain distribution of oriented silicon steel casting blank according to any one of claims 1 to 3, wherein in step S5, the continuous casting process parameters include cooling water amount, drawing speed, electromagnetic stirring current, electromagnetic stirring voltage.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103902841A (en) * | 2014-04-21 | 2014-07-02 | 哈尔滨理工大学 | Method for quantitatively analyzing EBSD measured body-centered cubic alloy solidification structure grain sizes |
| CN105352966A (en) * | 2015-09-29 | 2016-02-24 | 邢台钢铁有限责任公司 | High carbon steel continuous casting billet internal quality inspection method |
| CN107367510A (en) * | 2016-05-12 | 2017-11-21 | 鞍钢股份有限公司 | Method for measuring isometric crystal rate of high-carbon steel continuous casting billet |
| CN110361385A (en) * | 2019-07-08 | 2019-10-22 | 武汉科技大学 | A kind of method and system of crystal grain data acquisition |
| CN112906641A (en) * | 2021-03-19 | 2021-06-04 | 北京科技大学 | EBSD metallographic image grain identification method and device |
| CN115505822A (en) * | 2022-09-23 | 2022-12-23 | 无锡普天铁心股份有限公司 | Method for improving grain uniformity of oriented silicon steel and oriented silicon steel prepared by method |
-
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- 2023-04-26 CN CN202310458074.9A patent/CN116422851A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103902841A (en) * | 2014-04-21 | 2014-07-02 | 哈尔滨理工大学 | Method for quantitatively analyzing EBSD measured body-centered cubic alloy solidification structure grain sizes |
| CN105352966A (en) * | 2015-09-29 | 2016-02-24 | 邢台钢铁有限责任公司 | High carbon steel continuous casting billet internal quality inspection method |
| CN107367510A (en) * | 2016-05-12 | 2017-11-21 | 鞍钢股份有限公司 | Method for measuring isometric crystal rate of high-carbon steel continuous casting billet |
| CN110361385A (en) * | 2019-07-08 | 2019-10-22 | 武汉科技大学 | A kind of method and system of crystal grain data acquisition |
| CN112906641A (en) * | 2021-03-19 | 2021-06-04 | 北京科技大学 | EBSD metallographic image grain identification method and device |
| CN115505822A (en) * | 2022-09-23 | 2022-12-23 | 无锡普天铁心股份有限公司 | Method for improving grain uniformity of oriented silicon steel and oriented silicon steel prepared by method |
Non-Patent Citations (1)
| Title |
|---|
| 隋晓红;谢广群;: "连铸坯枝晶组织参数的测定及其应用", 鞍钢技术, no. 05, pages 308 - 311 * |
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