CN111069287A - High-silicon steel plate strip and preparation method thereof - Google Patents

High-silicon steel plate strip and preparation method thereof Download PDF

Info

Publication number
CN111069287A
CN111069287A CN201911363489.8A CN201911363489A CN111069287A CN 111069287 A CN111069287 A CN 111069287A CN 201911363489 A CN201911363489 A CN 201911363489A CN 111069287 A CN111069287 A CN 111069287A
Authority
CN
China
Prior art keywords
silicon steel
strip
heat treatment
steel plate
rolling
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.)
Pending
Application number
CN201911363489.8A
Other languages
Chinese (zh)
Inventor
梁永锋
陈彪
林均品
叶丰
刘斌斌
张来启
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Science and Technology Beijing USTB
Original Assignee
University of Science and Technology Beijing USTB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Science and Technology Beijing USTB filed Critical University of Science and Technology Beijing USTB
Priority to CN201911363489.8A priority Critical patent/CN111069287A/en
Publication of CN111069287A publication Critical patent/CN111069287A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/38—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 sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B47/00—Auxiliary arrangements, devices or methods in connection with rolling of multi-layer sheets of metal
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • 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
    • B21B1/38—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 sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
    • B21B2001/386—Plates

Abstract

The invention provides a large-size high-plasticity high-silicon steel plate strip and a preparation method thereof, belonging to the field of metal material preparation. According to the invention, the high-silicon steel strip prepared by rapid solidification and strip spinning is stacked along the width and thickness directions, is subjected to large-deformation cold rolling and heat treatment, and the finally obtained high-silicon steel plate strip not only has controllable width and thickness, but also has outstanding strength and room temperature plasticity.

Description

High-silicon steel plate strip and preparation method thereof
Technical Field
The invention belongs to the field of metal material preparation, and particularly relates to a preparation method of a high-silicon steel plate strip with controllable size and room temperature plasticity by a process of combining pack rolling and heat treatment.
Background
Silicon steel is a metal soft magnetic material with the largest consumption, and is widely used for iron cores of generators, motors, transformers and the like. With the increase of the silicon content, the electrical conductivity of the silicon steel is increased, the magnetic conductivity is increased, and the iron loss is reduced. The high-frequency iron loss is reduced more obviously by the high-silicon steel containing 6.5 wt% of silicon, and the magnetostriction coefficient is basically zero, so that the noise can be reduced obviously, and the high-frequency iron loss reducing silicon can be used for high-speed motors, high-frequency transformers and the like, and the purposes of saving energy and reducing noise are achieved. However, the high silicon steel has almost zero room temperature plasticity due to the high silicon content, and the preparation and processing are very difficult.
Very high cooling rates are required for the production of high silicon steel strip by rapid solidification. Therefore, the thickness of the high-silicon steel strip prepared by rapid solidification is generally between 0.02mm and 0.06 mm. When the thickness of the strip is thick or the width of the strip is wide, the molten steel is easy to spray due to the fact that the cooling capacity of equipment is insufficient and the molten steel cannot be cooled in time. Therefore, the thickness of the high-silicon steel strip prepared by rapid solidification is generally less than 0.06mm, and the width is less than 80 mm. The size of the strip prepared by rapid solidification has great limitation, and the application range of the high-silicon steel strip is severely limited.
The high-silicon steel strip prepared by rapid solidification has a high cooling speed, so that a large number of defects such as dislocation, lattice distortion and the like exist in a strip substrate, and a large number of unreleased internal stresses also exist. Due to the existence of the factors, the low-frequency magnetic property of the strip material is poor, and the strip material needs to be subjected to heat treatment before being used. However, after the strip is subjected to a high-temperature long-time heat treatment, the ordered phase is re-precipitated, and the mechanical properties of the strip are again deteriorated.
In summary, after the high-silicon steel prepared by rapid solidification in the prior art is rapidly cooled, a large amount of internal stress exists, and after the internal stress is eliminated by heat treatment, the occurrence of ordered phases can cause the reduction of mechanical properties.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, the high-silicon steel plate strip with larger size ranges in the width and thickness directions is prepared by rolling the high-silicon steel, the aims of metallurgical bonding of the plate strip and controlling the size of crystal grains can be simultaneously realized by combining with subsequent heat treatment, and finally the high-silicon steel plate strip with good plasticity and controllable size range is obtained.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a preparation method of a high-silicon steel plate strip, which comprises the following steps:
(1) stacking the high-silicon steel into a steel stack;
(2) cold rolling the steel stack to obtain a cold-rolled steel stack;
(3) and carrying out heat treatment on the cold-rolled steel stack to obtain the high-silicon steel plate strip.
Preferably, the high silicon steel in the step (1) is prepared by a rapid solidification method.
Preferably, the rapid solidification method is a melt spinning method.
Preferably, the cold rolling conditions in the step (2) are as follows: rolling with 5-15% of deformation per pass, wherein the total deformation of rolling is more than or equal to 70%, and the cold rolling temperature is 15-35 ℃.
Preferably, the heat treatment conditions are as follows: heating at the speed of 5-15 ℃/min, preserving heat at 900-1200 ℃ for 1 min-4 h, and cooling with a furnace or air cooling after the heat preservation is finished.
Preferably, the heat treatment is performed in a vacuum or a protective atmosphere.
Preferably, the vacuum degree of the vacuum is 10-5～10-1Pa。
The preparation method provided by the invention is extremely simple to operate, has universality and is suitable for batch production.
The invention also provides the high-silicon steel plate strip obtained by the preparation method. The plate prepared by the invention does not need hot rolling and warm rolling links in the traditional high-silicon steel preparation process, so the plate is not oxidized in the rolling process, oxide skin is not removed by acid washing, the metallurgical bonding process of the plate and the recrystallization process of crystal grains can be simultaneously realized in the heat treatment process, and fine and uniform crystal grains can be still kept after the high-temperature heat treatment.
Drawings
FIG. 1 is a schematic view of a ribbon stacking arrangement;
FIG. 2 is an external view of a plate material according to example 2;
FIG. 3 shows the plate surface structure and the cross-sectional structure of example 2;
FIG. 4 shows the plate surface structure and the cross-sectional structure of example 4;
FIG. 5 is a sheet tension curve of example 1;
FIG. 6 is a sheet tension curve of example 2;
FIG. 7 is a sheet tension curve of example 3;
FIG. 8 is a tensile curve for the sheet of example 4.
Detailed Description
The invention provides a preparation method of a high-silicon steel plate strip, which comprises the following steps:
(1) stacking the high-silicon steel into a steel stack;
(2) cold rolling the steel stack to obtain a cold-rolled steel stack;
(3) and carrying out heat treatment on the cold-rolled steel stack to obtain the high-silicon steel plate strip.
In the present invention, the high silicon steel in the step (1) is preferably prepared by a rapid solidification method.
In the present invention, the rapid solidification method is preferably a melt spinning method.
In the invention, the steel stacks are obtained by orderly stacking high-silicon steel, and the size of the steel stacks is controlled according to actual production requirements.
In the invention, the steel stack can be placed in a stainless steel sheath for fixing, and the stainless steel sheath is welded and sealed after being placed. The sheath mainly plays a role in fixing, and the sheath can be omitted on the premise that the steel stack can be fixed.
In the invention, the deformation amount of the cold rolling in the step (2) is preferably 5-15%, more preferably 7-13%, and further preferably 9-11% per pass; the total deformation amount of the cold rolling is preferably 70% or more, more preferably 75% or more, and further preferably 80% or more; the cold rolling temperature is preferably 15-35 ℃, more preferably 20-30 ℃, and further preferably 23-27 ℃. The cold rolling process does not oxidize the plate, and does not need to remove oxide skin by acid washing.
In the invention, the heating rate of the heat treatment is preferably 5-15 ℃/min, and more preferably 8-12 ℃/min; the temperature of the heat treatment is preferably 900-1200 ℃, more preferably 950-1150 ℃, more preferably 1000-1100 ℃, the heat preservation time of the heat treatment is preferably 1 min-4 h, more preferably 30 min-3.5 h, more preferably 1-3 h, and the cooling after the heat treatment is preferably furnace cooling or air cooling. The heat treatment of the invention can realize the metallurgical bonding process of the plate and the recrystallization process of the crystal grains at the same time.
In the present invention, the degree of vacuum of the heat treatment is preferably 10-5～10-1Pa, more preferably 10-4～10- 2Pa, more preferably 10-4～10-3Pa。
In the present invention, the protective atmosphere is preferably nitrogen or argon.
The invention also provides the high-silicon steel plate strip obtained by the preparation method.
The technical solutions provided by the present invention are described in detail below with reference to examples, but they should not be construed as limiting the scope of the present invention.
Example 1
Step 1: raw material preparation, 6 layers of Fe-6.5 wt% Si high silicon steel strips prepared by a rapid solidification strip casting method, the thickness of which is 0.035mm, and the width of which is 55mm, are stacked according to the figure 1 (a). And (4) placing the strips which are neatly stacked in a stainless steel sheath for fixing, and welding and sealing the stainless steel sheath after placement.
Step 2: rolling at room temperature: and (3) carrying out large-deformation cold rolling on the wrapped high-silicon steel strip, and carrying out cold rolling with the deformation of 10% per pass until the thickness of the plate is 0.05 mm.
And step 3: and (3) heat treatment: and taking off the stainless steel sheath, heating the rolled sheet and strip to 1000 ℃ at the speed of 8 ℃/min under the vacuum of 0.1Pa, preserving the heat for 3h, and carrying out vacuum heat treatment to enable the sheet and strip to be bonded metallurgically between layers to obtain the high-silicon steel sheet and strip with the thickness of 0.05mm, the width of 57mm, fine crystal grains and high plasticity.
The grain size of the high-silicon steel plate strip prepared by the embodiment is concentrated in the range of 5-10 μm.
Example 2
Step 1: raw material preparation, 12 layers of Fe-6.5 wt% Si high silicon steel strips prepared by a rapid solidification strip casting method, the thickness of which is 0.035mm, and the width of which is 55mm, are stacked according to the figure 1 (a). And (4) placing the strips which are neatly stacked in a stainless steel sheath for fixing, and welding and sealing the stainless steel sheath after placement.
Step 2: rolling at room temperature: and (3) carrying out large-deformation cold rolling on the wrapped high-silicon steel strip, and carrying out cold rolling with the deformation of 5% per pass until the thickness of the plate is 0.1 mm.
And step 3: and (3) heat treatment: and taking off the stainless steel sheath, heating the rolled sheet and strip to 1000 ℃ at the speed of 10 ℃/min under the vacuum of 0.1Pa, preserving the heat for 3h, and carrying out vacuum heat treatment to enable the sheet and strip to be bonded metallurgically between layers to obtain the high-silicon steel sheet and strip with the thickness of 0.1mm, the width of 57mm, fine crystal grains and high plasticity.
The appearance of the high-silicon steel plate strip is shown in figure 2(a), and the surface is smooth and glossy; fig. 2(b) shows a state where the high-silicon steel sheet strip is folded in half at a large angle, and the high-silicon steel sheet strip is not broken, which indicates that the high-silicon steel sheet strip has high room temperature plasticity.
The scanning electron microscope image of the plate surface structure of the high-silicon steel plate strip is shown in fig. 3(a), which shows that the steel plate after heat treatment has fine grains; the SEM image of the cross-sectional structure is shown in FIG. 3(b), which shows that the steel sheet after heat treatment has undergone excellent interlayer metallurgical bonding.
The grain size of the high-silicon steel plate strip prepared by the embodiment is concentrated in the range of 5-10 μm.
Example 3
Step 1: raw material preparation, 23 layers of Fe-6.5 wt% Si high silicon steel strips prepared by a rapid solidification strip casting method, the thickness of which is 0.035mm, and the width of which is 55mm, are stacked according to the figure 1 (b). And (4) placing the strips which are neatly stacked in a stainless steel sheath for fixing, and welding and sealing the stainless steel sheath after placement.
Step 2: rolling at room temperature: and (3) carrying out large-deformation cold rolling on the wrapped high-silicon steel strip, and carrying out cold rolling with the deformation of 10% per pass until the thickness of the plate is 0.2 mm.
And step 3: and (3) heat treatment: and taking off the stainless steel sheath, heating the rolled sheet and strip to 1000 ℃ at the speed of 12 ℃/min under the vacuum of 0.05Pa, preserving the heat for 3h, and carrying out vacuum heat treatment to enable the sheet and strip to be bonded metallurgically between layers to obtain the high-silicon steel sheet and strip with the thickness of 0.2mm, the width of 114mm, fine crystal grains and high plasticity.
The grain size of the high-silicon steel plate strip prepared by the embodiment is concentrated in the range of 5-10 μm.
Example 4
Step 1: raw material preparation, 35 layers of Fe-6.5 wt% Si high silicon steel strips prepared by a rapid solidification strip casting method, the thickness of which is 0.035mm, and the width of which is 55mm, are stacked according to the figure 1 (b). And (4) placing the strips which are neatly stacked in a stainless steel sheath for fixing, and welding and sealing the stainless steel sheath after placement.
Step 2: rolling at room temperature: and (3) carrying out large-deformation cold rolling on the wrapped high-silicon steel strip, and carrying out cold rolling with the deformation of 8% per pass until the thickness of the plate is 0.3 mm.
And step 3: and (3) heat treatment: taking off the stainless steel sheath, and rolling the plate and strip at 10-3And (3) heating to 1000 ℃ at the speed of 10 ℃/min under the vacuum of Pa, then preserving the heat for 3h, and carrying out vacuum heat treatment to enable the interlayer to be metallurgically bonded, thereby obtaining the high-silicon steel plate strip with the thickness of 0.3mm, the width of 114mm, fine crystal grains and high plasticity.
The surface structure of the high-silicon steel plate strip is shown in fig. 4(a), which shows that the steel plate after heat treatment has fine grains; the cross-sectional structure is shown in FIG. 4(b), which shows that the heat-treated steel sheet is well bonded by interlayer metallurgy.
The grain size of the high-silicon steel plate strip prepared by the embodiment is concentrated in 8-12 mu m.
Comparative example 1
Step 1: raw material preparation, 10 layers of Fe-6.5 wt% Si high silicon steel strips prepared by a rapid solidification strip casting method, the thickness of which is 0.035mm, and the width of which is 55mm, are stacked according to the figure 1 (a). And (4) placing the strips which are neatly stacked in a stainless steel sheath for fixing, and welding and sealing the stainless steel sheath after placement.
Step 2: rolling at room temperature: and (3) carrying out large-deformation cold rolling on the wrapped high-silicon steel strip, and carrying out cold rolling with the deformation of 5% per pass until the thickness of the plate is 0.175 mm.
And step 3: and (3) heat treatment: and (3) taking off the stainless steel sheath, heating the rolled sheet and strip to 750 ℃ at the speed of 1 ℃/min under the vacuum of 1.2Pa, preserving the heat for 5.5h, and carrying out vacuum heat treatment to enable the sheet and strip to be bonded metallurgically between layers to obtain the high-silicon steel sheet and strip with the thickness of 0.175mm and the width of 57 mm.
The result of scanning the obtained high-silicon steel plate strip by an electron microscope shows that the metallurgical bonding between the high-silicon steel layers is not tight enough.
Comparative example 2
Step 1: raw material preparation, 17 layers of Fe-6.5 wt% Si high silicon steel strips prepared by a rapid solidification strip casting method, the thickness of which is 0.035mm, and the width of which is 55mm, are stacked according to the figure 1 (a). And (4) placing the strips which are neatly stacked in a stainless steel sheath for fixing, and welding and sealing the stainless steel sheath after placement.
Step 2: rolling at room temperature: and (3) carrying out large-deformation cold rolling on the wrapped high-silicon steel strip, and carrying out cold rolling with the deformation of 15% per pass until the thickness of the plate is 0.238 mm.
And step 3: and (3) heat treatment: taking down the stainless steel sheath, heating the rolled plate and strip to 800 ℃ at the speed of 5 ℃/min under the vacuum of 0.5Pa, preserving the heat for 5h, and carrying out vacuum heat treatment to obtain the high-silicon steel plate and strip with the thickness of 0.238mm and the width of 57 mm.
The result of scanning the obtained high-silicon steel plate strip by an electron microscope shows that the metallurgical bonding between the high-silicon steel layers is not tight enough.
Comparative example 3
Step 1: raw material preparation, 23 layers of Fe-6.5 wt% Si high silicon steel strips prepared by a rapid solidification strip casting method, the thickness of which is 0.035mm, and the width of which is 55mm, are stacked according to the figure 1 (b). And (4) placing the strips which are neatly stacked in a stainless steel sheath for fixing, and welding and sealing the stainless steel sheath after placement.
Step 2: rolling at room temperature: and (3) carrying out large-deformation cold rolling on the wrapped high-silicon steel strip, and carrying out cold rolling with the deformation of 10% per pass until the thickness of the plate is 0.362 mm.
And step 3: and (3) heat treatment: and (3) taking off the stainless steel sheath, heating the rolled plate strip to 800 ℃ at the speed of 15 ℃/min under the vacuum of 0.5Pa, preserving the heat for 5h, and carrying out vacuum heat treatment to obtain the high-silicon steel plate strip with the thickness of 0.362mm and the width of 114 mm.
The result of scanning the obtained high-silicon steel plate strip by an electron microscope shows that the metallurgical bonding between the high-silicon steel layers is not tight enough.
Comparative example 4
Step 1: raw material preparation, 30 layers of Fe-6.5 wt% Si high silicon steel strips prepared by a rapid solidification strip casting method, the thickness of which is 0.035mm, and the width of which is 55mm, are stacked according to the figure 1 (b). And (4) placing the strips which are neatly stacked in a stainless steel sheath for fixing, and welding and sealing the stainless steel sheath after placement.
Step 2: rolling at room temperature: and (3) carrying out large-deformation cold rolling on the wrapped high-silicon steel strip, and carrying out cold rolling with the deformation of 20% per pass until the thickness of the plate is 0.473 mm.
And step 3: and (3) heat treatment: and (3) taking off the stainless steel sheath, heating the rolled plate strip to 800 ℃ at the speed of 20 ℃/min under the vacuum of 0.3Pa, preserving the heat for 5.5h, and carrying out vacuum heat treatment to enable the interlayer to be metallurgically bonded, so that the high-silicon steel plate strip with the thickness of 0.473mm and the width of 114mm is obtained.
The result of scanning the obtained high-silicon steel plate strip by an electron microscope shows that the metallurgical bonding between the high-silicon steel layers is not tight enough.
The high silicon steel strips obtained in the examples were processed at 25 ℃ and 5X 10-4Tensile test was conducted at a tensile rate/s, and the test results are shown in Table 1.
The tensile curves of the examples 1 to 4 are shown in fig. 5 to 8, and it can be seen from the drawings that the high-silicon steel plate strip has good strength and room temperature plasticity is remarkably improved.
TABLE 1 high silicon steel sheet strip Properties
Figure BDA0002336083660000071
Figure BDA0002336083660000081
According to the embodiment, the yield strength and the elongation rate of the high-silicon steel plate strip prepared by the invention are remarkably improved, the yield strength can reach 940.5MPa, and the elongation rate can reach 11.3%, so that the high-silicon steel plate strip prepared by the method has excellent strength and room temperature plasticity.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (8)

1. The preparation method of the high-silicon steel plate strip is characterized by comprising the following steps of:
(1) stacking the high-silicon steel into a steel stack;
(2) cold rolling the steel stack to obtain a cold-rolled steel stack;
(3) and carrying out heat treatment on the cold-rolled steel stack to obtain the high-silicon steel plate strip.
2. The method of claim 1, wherein the high silicon steel of step (1) is prepared by a rapid solidification method.
3. The method of claim 2, wherein the rapid solidification process is a melt spinning process.
4. The manufacturing method according to claim 1, wherein the conditions for the cold rolling in the step (2) are as follows: rolling with 5-15% of deformation per pass, wherein the total deformation of rolling is more than or equal to 70%, and the cold rolling temperature is 15-35 ℃.
5. The method according to any one of claims 1 to 4, wherein the heat treatment conditions are as follows: heating to 900-1200 ℃ at the speed of 5-15 ℃/min, then preserving heat for 1 min-4 h, and cooling with a furnace or air cooling after heat preservation is finished.
6. The method of claim 5, wherein the heat treatment is performed in a vacuum or a protective atmosphere.
7. The method of claim 6, wherein the vacuum is 10 ° f-5～10-1Pa。
8. The high silicon steel sheet strip obtained by the production method according to any one of claims 1 to 7.
CN201911363489.8A 2019-12-25 2019-12-25 High-silicon steel plate strip and preparation method thereof Pending CN111069287A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911363489.8A CN111069287A (en) 2019-12-25 2019-12-25 High-silicon steel plate strip and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911363489.8A CN111069287A (en) 2019-12-25 2019-12-25 High-silicon steel plate strip and preparation method thereof

Publications (1)

Publication Number Publication Date
CN111069287A true CN111069287A (en) 2020-04-28

Family

ID=70318067

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911363489.8A Pending CN111069287A (en) 2019-12-25 2019-12-25 High-silicon steel plate strip and preparation method thereof

Country Status (1)

Country Link
CN (1) CN111069287A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007056303A (en) * 2005-08-24 2007-03-08 Jfe Steel Kk Method for producing non-oriented silicon steel sheet excellent in magnetic characteristic
CN104046758A (en) * 2014-06-19 2014-09-17 北京科技大学 Short-process efficient cold-rolling preparation method of high-silicon steel thin strip
CN105779876A (en) * 2014-12-23 2016-07-20 鞍钢股份有限公司 Production method for low-grade cold-rolled non-oriented electrical steel thin strip
CN109097535A (en) * 2018-09-27 2018-12-28 长春工业大学 A method of high-intensitive non-orientation silicon steel is prepared based on Processed by Accumulative Roll-bonding
JP2019012777A (en) * 2017-06-30 2019-01-24 新日鐵住金株式会社 Non-oriented electromagnetic steel plate and manufacturing method thereof
CN110387502A (en) * 2019-07-23 2019-10-29 辽宁石油化工大学 A kind of high silicon plate and the deep cooling pack rolling technique for preparing the thin plate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007056303A (en) * 2005-08-24 2007-03-08 Jfe Steel Kk Method for producing non-oriented silicon steel sheet excellent in magnetic characteristic
CN104046758A (en) * 2014-06-19 2014-09-17 北京科技大学 Short-process efficient cold-rolling preparation method of high-silicon steel thin strip
CN105779876A (en) * 2014-12-23 2016-07-20 鞍钢股份有限公司 Production method for low-grade cold-rolled non-oriented electrical steel thin strip
JP2019012777A (en) * 2017-06-30 2019-01-24 新日鐵住金株式会社 Non-oriented electromagnetic steel plate and manufacturing method thereof
CN109097535A (en) * 2018-09-27 2018-12-28 长春工业大学 A method of high-intensitive non-orientation silicon steel is prepared based on Processed by Accumulative Roll-bonding
CN110387502A (en) * 2019-07-23 2019-10-29 辽宁石油化工大学 A kind of high silicon plate and the deep cooling pack rolling technique for preparing the thin plate

Similar Documents

Publication Publication Date Title
US8815777B2 (en) Metal laminated substrate for use as an oxide superconducting wire material, and manufacturing method therefor
JP2698369B2 (en) Low frequency transformer alloy and low frequency transformer using the same
CN103938031B (en) A kind of preparation method of nonmagnetic, strength texture Ni-W alloy base band
US10134513B2 (en) High silicon steel sheet having excellent productivity and magnetic properties and method for manufacturing same
US10676808B2 (en) Method for producing a metal film
US10923248B2 (en) Method for producing a metal film
CN106399756B (en) A kind of preparation method of high-performance cubic texture nickel-base alloy base band
CN103722012B (en) Preparing method of high silicon electrical steel strip with gradient-distributed silicon content
CN102199721A (en) High-silicon non-oriented cold-rolled sheet, and manufacture method thereof
WO2011061909A1 (en) Substrate for superconducting compound and method for manufacturing the substrate
CN110465547A (en) A kind of dissimilar metal clad plate goes residual stress to enhance compound method
CN109355535B (en) Preparation method of 5083 aluminum alloy plate
CN111334731A (en) Method for controlling anisotropy of α + β titanium alloy cold-rolled sheet strip
CN111069287A (en) High-silicon steel plate strip and preparation method thereof
KR101536465B1 (en) Soft silicon steel and manufacturing method thereof
CN109355519B (en) Preparation method for improving strength of non-ferromagnetic cubic texture copper-based alloy baseband
CN114737129B (en) High-performance non-oriented silicon steel for wound motor iron core and production method thereof
FR2502179A1 (en) PROCESS FOR PRODUCING ORIENTATED GRAIN SILICON STEEL
JP4259002B2 (en) Method for producing grain-oriented electrical steel sheet
RU2481674C1 (en) Method to manufacture substrate for high-temperature thin-film superconductors and substrate
CN112226608B (en) Heat treatment process for silicon steel sheet
CN114703416B (en) 50 steel hot rolled plate and production method thereof
CN107267858A (en) A kind of silicon steel plate and preparation method thereof
WO2023079922A1 (en) Finish annealing facility for electromagnetic steel sheet, finish annealing method and production method for electromagnetic steel sheet, and non-oriented electromagnetic steel sheet
CN115821189B (en) Heat treatment method of titanium strip coil for plate replacement

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
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20200428