CN111118273A - Production process of oriented silicon steel thin strip - Google Patents
Production process of oriented silicon steel thin strip Download PDFInfo
- Publication number
- CN111118273A CN111118273A CN201911332018.0A CN201911332018A CN111118273A CN 111118273 A CN111118273 A CN 111118273A CN 201911332018 A CN201911332018 A CN 201911332018A CN 111118273 A CN111118273 A CN 111118273A
- Authority
- CN
- China
- Prior art keywords
- silicon steel
- oriented silicon
- steel strip
- rolling
- strip
- 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
Links
Images
Classifications
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
-
- 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
- B21B1/30—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 in a non-continuous process
- B21B1/32—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 in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
Abstract
The invention relates to a production process of an oriented silicon steel thin strip, belonging to the technical field of metal strip rolling; providing a production method of a non-bottom oriented silicon steel thin strip with little pollution, high yield and high production efficiency; the technical scheme is as follows: a production process of an oriented silicon steel strip takes a finished industrial oriented silicon steel plate as a raw material, and comprises the following steps: producing a non-bottom oriented silicon steel plate by adopting common oriented silicon steel, (II) rolling, (III) cleaning, (IV) annealing, (V) coating and (VI) shearing; the invention can be widely applied to the production and the manufacture of the oriented silicon steel strip.
Description
Technical Field
The invention relates to a production process of an oriented silicon steel thin strip, belonging to the technical field of metal strip rolling.
Background
Silicon steel is an indispensable important functional material in the industries of electric power, motors and electronics, and grain-oriented silicon steel is mainly used as a soft magnetic material of iron cores of transformers and the like. With the development of the electronic industry, the requirements for silicon steel sheets are more and more strict. From the viewpoint of energy saving, it is always desired to increase magnetic induction and reduce iron loss.
The steel plate passes through H in the traditional oriented silicon steel industrial production2—N2—H2And (2) performing continuous decarburization annealing in an O atmosphere to remove carbon in the matrix to below 0.0030%, forming a proper oxide layer on the surface of the steel plate, and then coating MgO on the surface to perform solid diffusion reaction with the oxide layer on the surface of the steel plate: 2MgO + SiO2=Mg2SiO4Form Mg2SiO4And a bottom layer of glass film. The hardness of the bottom layer of the glass film is high, so that the punching sheet performance of the oriented silicon steel is poor; the rough interface between the bottom layer and the substrate can hinder the magnetic domain movement, which is not beneficial to the iron loss reduction. In order to improve the processing performance of the oriented silicon steel, further reduce the iron loss and reduce the influence on the quality of the oriented silicon steel in the rolling process, the oriented silicon steel strip is processed and produced by adopting the oriented silicon steel without the bottom layer.
At present, the oriented silicon steel strip has more production processes, longer time consumption and higher production cost; and the rolling difficulty is higher in the production process, and the defects of belt breakage and the like are easily generated in the rolling process.
Disclosure of Invention
In order to solve the technical problems, the invention provides a production method of a non-bottom-layer oriented silicon steel thin strip, which has high yield and high production efficiency.
In order to achieve the technical purpose, the technical scheme provided by the invention is as follows:
a production process of an oriented silicon steel strip takes a finished industrial oriented silicon steel plate as a raw material, and comprises the following steps:
firstly, producing a non-bottom oriented silicon steel plate by adopting a finished industrial oriented silicon steel plate;
(II) rolling: rolling the oriented silicon steel plate without the bottom layer into an oriented silicon steel thin strip by using a twenty-roller reversible rolling mill through three to seven passes;
(III) cleaning: soaking in an alkali liquor soaking tank, scrubbing with alkali, scrubbing with water, drying, and rolling;
(IV) annealing: carrying out continuous annealing by using a muffle type bright annealing furnace;
(V) coating: coating the surface of the oriented silicon steel strip, and then sintering and drying at the sintering speed of 5-60 m/min.
(VI) shearing: and performing edge finishing on the coated oriented silicon steel strip or shearing the whole oriented silicon steel strip into a plurality of strips.
The industrial oriented silicon steel plate is pickled to produce the oriented silicon steel strip without the bottom layer.
Rolling the orientation silicon steel plate with the thickness of 0.23-0.35 mm and without the bottom layer into an orientation silicon steel thin strip with the thickness of 0.02-0.15 mm through three-seven passes of rolling.
The cleaning speed of the oriented silicon steel strip is 20-60 m/min, the tension is 50-120 kg, and the drying temperature is 50-150 ℃.
Protective atmosphere N in muffle type bright annealing furnace during annealing2+NH3(1: 1), the annealing temperature is 800-1000 ℃, the internal tension of the annealing furnace is 5-40 kg, and the heat preservation time is 10-100S.
The coating is an insulating coating, and the tension of the coating is 40 kg-120 kg.
According to detection of Epstein circles, the electromagnetic performance of the finished oriented silicon steel strip is P1.5/400= 10-16W/kg, and B8/400= 1.75-1.88T.
The shearing speed is 20-160 m/min.
An asymmetric twenty-high rolling mill for a process of producing a thin strip of oriented silicon steel, the twenty-high rolling mill comprising: the frame memorial archway comprises an upper through hole and a lower through hole, wherein the upper through hole and the lower through hole are staggered, the upper roller system is installed in the upper through hole, and the lower roller system is installed in the lower through hole.
An asymmetric twenty high roll mill for use in a process for producing thin strips of oriented silicon steel, the upper roll train comprising: nine upper supporting rollers positioned on the upper layer, an upper working roller positioned below the supporting rollers and an upper horizontal supporting plate positioned below the working rollers; the upper supporting roller and the upper working roller are connected with the rack housing through bearings, and the upper horizontal supporting plate is fixedly connected with the rack housing.
The lower roll system includes: nine lower supporting rollers positioned at the lower layer, a lower working roller positioned above the lower supporting roller and a lower horizontal supporting plate positioned above the lower working roller; the two ends of the lower supporting roll and the two ends of the lower working roll are both connected with the rack housing through bearings, and the lower horizontal supporting plate is fixedly connected with the rack housing;
the lower end face of the upper horizontal supporting plate is horizontal to the lower end of the lower working roll, and the upper end face of the lower horizontal supporting plate is horizontal to the upper end of the upper working roll.
Compared with the prior art, the invention has the following beneficial effects:
the method is used for producing the non-bottom oriented silicon steel strip by special process control in the process of producing the common oriented silicon steel. Different from the traditional method for removing the bottom layer of the oriented silicon steel thin strip by acid cleaning, the method has little pollution to the environment.
According to the invention, through the staggered twenty-high roll mill, the problem that the upper and lower rollers are deviated due to overlarge pressure after the working rollers work for a long time, and the produced plate shape is warped can be avoided.
Drawings
FIG. 1 is a schematic view of a twenty high rolling mill of the present invention.
In the figure: 1 is a frame memorial archway, 2 is an upper roller system, and 3 is a lower roller system.
Detailed Description
Example 1
A production process of an oriented silicon steel strip takes a finished industrial oriented silicon steel plate as a raw material, and comprises the following steps:
firstly, producing a non-bottom oriented silicon steel plate by adopting a finished industrial oriented silicon steel plate;
(II) rolling: rolling the oriented silicon steel plate without the bottom layer into an oriented silicon steel thin strip by using a twenty-roller reversible rolling mill through three to seven passes;
(III) cleaning: soaking in an alkali liquor soaking tank, scrubbing with alkali, scrubbing with water, drying, and rolling;
(IV) annealing: carrying out continuous annealing by using a muffle type bright annealing furnace;
(V) coating: coating the surface of the oriented silicon steel strip, and then sintering and drying at the sintering speed of 5-60 m/min.
(VI) shearing: and performing edge finishing on the coated oriented silicon steel strip or shearing the whole oriented silicon steel strip into a plurality of strips.
The industrial oriented silicon steel plate is pickled to produce the oriented silicon steel strip without the bottom layer.
After rolling in three to seven passes, the oriented silicon steel plate with the thickness of 0.23mm and without the bottom layer is rolled into an oriented silicon steel thin strip with the thickness of 0.02 mm.
The cleaning speed of the oriented silicon steel strip is 20-60 m/min, the tension is 50-120 kg, and the drying temperature is 50-150 ℃.
Protective atmosphere N in muffle type bright annealing furnace during annealing2+NH3(1: 1), the annealing temperature is 800-1000 ℃, the internal tension of the annealing furnace is 5-40 kg, and the heat preservation time is 10-100S.
The coating is an insulating coating, and the tension of the coating is 40 kg-120 kg.
According to detection of Epstein circles, the electromagnetic performance of the finished oriented silicon steel strip is P1.5/400= 10-16W/kg, and B8/400= 1.75-1.88T.
The shearing speed is 20-160 m/min.
Example 2
A production process of an oriented silicon steel strip takes a finished industrial oriented silicon steel plate as a raw material, and comprises the following steps:
firstly, producing a non-bottom oriented silicon steel plate by adopting a finished industrial oriented silicon steel plate;
(II) rolling: rolling the oriented silicon steel plate without the bottom layer into an oriented silicon steel thin strip by using a twenty-roller reversible rolling mill through three to seven passes;
(III) cleaning: soaking in an alkali liquor soaking tank, scrubbing with alkali, scrubbing with water, drying, and rolling;
(IV) annealing: carrying out continuous annealing by using a muffle type bright annealing furnace;
(V) coating: coating the surface of the oriented silicon steel strip, and then sintering and drying at the sintering speed of 5-60 m/min.
(VI) shearing: and performing edge finishing on the coated oriented silicon steel strip or shearing the whole oriented silicon steel strip into a plurality of strips.
The industrial oriented silicon steel plate is pickled to produce the oriented silicon steel strip without the bottom layer.
After rolling in three to seven passes, the oriented silicon steel plate with the thickness of 0.23mm and without the bottom layer is rolled into an oriented silicon steel thin strip with the thickness of 0.15 mm.
The cleaning speed of the oriented silicon steel strip is 20-60 m/min, the tension is 50-120 kg, and the drying temperature is 50-150 ℃.
Protective atmosphere N in muffle type bright annealing furnace during annealing2+NH3(1: 1), the annealing temperature is 800-1000 ℃, the internal tension of the annealing furnace is 5-40 kg, and the heat preservation time is 10-100S.
The coating is an insulating coating, and the tension of the coating is 40 kg-120 kg.
According to detection of Epstein circles, the electromagnetic performance of the finished oriented silicon steel strip is P1.5/400= 10-16W/kg, and B8/400= 1.75-1.88T.
The shearing speed is 20-160 m/min.
Example 3
A production process of an oriented silicon steel strip takes a finished industrial oriented silicon steel plate as a raw material, and comprises the following steps:
firstly, producing a non-bottom oriented silicon steel plate by adopting a finished industrial oriented silicon steel plate;
(II) rolling: rolling the oriented silicon steel plate without the bottom layer into an oriented silicon steel thin strip by using a twenty-roller reversible rolling mill through three to seven passes;
(III) cleaning: soaking in an alkali liquor soaking tank, scrubbing with alkali, scrubbing with water, drying, and rolling;
(IV) annealing: carrying out continuous annealing by using a muffle type bright annealing furnace;
(V) coating: coating the surface of the oriented silicon steel strip, and then sintering and drying at the sintering speed of 5-60 m/min.
(VI) shearing: and performing edge finishing on the coated oriented silicon steel strip or shearing the whole oriented silicon steel strip into a plurality of strips.
The industrial oriented silicon steel plate is pickled to produce the oriented silicon steel strip without the bottom layer.
After rolling in three to seven passes, the oriented silicon steel plate with the thickness of 0.35mm and without the bottom layer is rolled into an oriented silicon steel thin strip with the thickness of 0.03 mm.
The cleaning speed of the oriented silicon steel strip is 20-60 m/min, the tension is 50-120 kg, and the drying temperature is 50-150 ℃.
Protective atmosphere N in muffle type bright annealing furnace during annealing2+NH3(1: 1), the annealing temperature is 800-1000 ℃, the internal tension of the annealing furnace is 5-40 kg, and the heat preservation time is 10-100S.
The coating is an insulating coating, and the tension of the coating is 40 kg-120 kg.
According to detection of Epstein circles, the electromagnetic performance of the finished oriented silicon steel strip is P1.5/400= 10-16W/kg, and B8/400= 1.75-1.88T.
The shearing speed is 20-160 m/min.
Example 4
A production process of an oriented silicon steel strip takes a finished industrial oriented silicon steel plate as a raw material, and comprises the following steps:
firstly, producing a non-bottom oriented silicon steel plate by adopting a finished industrial oriented silicon steel plate;
(II) rolling: rolling the oriented silicon steel plate without the bottom layer into an oriented silicon steel thin strip by using a twenty-roller reversible rolling mill through three to seven passes;
(III) cleaning: soaking in an alkali liquor soaking tank, scrubbing with alkali, scrubbing with water, drying, and rolling;
(IV) annealing: carrying out continuous annealing by using a muffle type bright annealing furnace;
(V) coating: coating the surface of the oriented silicon steel strip, and then sintering and drying at the sintering speed of 5-60 m/min.
(VI) shearing: and performing edge finishing on the coated oriented silicon steel strip or shearing the whole oriented silicon steel strip into a plurality of strips.
The industrial oriented silicon steel plate is pickled to produce the oriented silicon steel strip without the bottom layer.
After rolling in three to seven passes, the oriented silicon steel plate with the thickness of 0.35mm and without the bottom layer is rolled into an oriented silicon steel thin strip with the thickness of 0.15 mm.
The cleaning speed of the oriented silicon steel strip is 20-60 m/min, the tension is 50-120 kg, and the drying temperature is 50-150 ℃.
Protective atmosphere N in muffle type bright annealing furnace during annealing2+NH3(1: 1), the annealing temperature is 800-1000 ℃, the internal tension of the annealing furnace is 5-40 kg, and the heat preservation time is 10-100S.
The coating is an insulating coating, and the tension of the coating is 40 kg-120 kg.
According to detection of Epstein circles, the electromagnetic performance of the finished oriented silicon steel strip is P1.5/400= 10-16W/kg, and B8/400= 1.75-1.88T.
The shearing speed is 20-160 m/min.
Example 5
A production process of an oriented silicon steel strip takes a finished industrial oriented silicon steel plate as a raw material, and comprises the following steps:
firstly, producing a non-bottom oriented silicon steel plate by adopting a finished industrial oriented silicon steel plate;
(II) rolling: rolling the oriented silicon steel plate without the bottom layer into an oriented silicon steel thin strip by using a twenty-roller reversible rolling mill through multi-pass rolling;
(III) cleaning: soaking in an alkali liquor soaking tank, scrubbing with alkali, scrubbing with water, drying, and rolling;
(IV) annealing: carrying out continuous annealing by using a muffle type bright annealing furnace;
(V) coating: coating the surface of the oriented silicon steel strip, and then sintering and drying at the sintering speed of 5-60 m/min.
(VI) shearing: and performing edge finishing on the coated oriented silicon steel strip or shearing the whole oriented silicon steel strip into a plurality of strips.
The industrial oriented silicon steel plate is pickled to produce the oriented silicon steel strip without the bottom layer.
After rolling in three to seven passes, the oriented silicon steel plate with the thickness of 0.27mm and without the bottom layer is rolled into an oriented silicon steel thin strip with the thickness of 0.08 mm.
The cleaning speed of the oriented silicon steel strip is 20-60 m/min, the tension is 50-120 kg, and the drying temperature is 50-150 ℃.
Protective atmosphere N in muffle type bright annealing furnace during annealing2+NH3(1: 1), the annealing temperature is 800-1000 ℃, the internal tension of the annealing furnace is 5-40 kg, and the heat preservation time is 10-100S.
The coating is an insulating coating, and the tension of the coating is 40 kg-120 kg.
According to detection of Epstein circles, the electromagnetic performance of the finished oriented silicon steel strip is P1.5/400= 10-16W/kg, and B8/400= 1.75-1.88T.
The shearing speed is 20-160 m/min.
Example 6
A production process of an oriented silicon steel strip takes a finished industrial oriented silicon steel plate as a raw material, and comprises the following steps:
firstly, producing a non-bottom oriented silicon steel plate by adopting a finished industrial oriented silicon steel plate;
(II) rolling: rolling the oriented silicon steel plate without the bottom layer into an oriented silicon steel thin strip by using a twenty-roller reversible rolling mill through three to seven passes;
(III) cleaning: soaking in an alkali liquor soaking tank, scrubbing with alkali, scrubbing with water, drying, and rolling;
(IV) annealing: carrying out continuous annealing by using a muffle type bright annealing furnace;
(V) coating: coating the surface of the oriented silicon steel strip, and then sintering and drying at the sintering speed of 5-60 m/min.
(VI) shearing: and performing edge finishing on the coated oriented silicon steel strip or shearing the whole oriented silicon steel strip into a plurality of strips.
The industrial oriented silicon steel plate is pickled to produce the oriented silicon steel strip without the bottom layer.
After rolling in three to seven passes, the oriented silicon steel plate with the thickness of 0.27mm and without the bottom layer is rolled into an oriented silicon steel thin strip with the thickness of 0.05 mm.
The cleaning speed of the oriented silicon steel strip is 20-60 m/min, the tension is 50-120 kg, and the drying temperature is 50-150 ℃.
Protective atmosphere N in muffle type bright annealing furnace during annealing2+NH3(1: 1), the annealing temperature is 800-1000 ℃, the internal tension of the annealing furnace is 5-40 kg, and the heat preservation time is 10-100S.
The coating is an insulating coating, and the tension of the coating is 40 kg-120 kg.
According to detection of Epstein circles, the electromagnetic performance of the finished oriented silicon steel strip is P1.5/400= 10-16W/kg, and B8/400= 1.75-1.88T.
The shearing speed is 20-160 m/min.
Example 7
A production process of an oriented silicon steel strip takes a finished industrial oriented silicon steel plate as a raw material, and comprises the following steps:
firstly, producing a non-bottom oriented silicon steel plate by adopting a finished industrial oriented silicon steel plate;
(II) rolling: rolling the oriented silicon steel plate without the bottom layer into an oriented silicon steel thin strip by using a twenty-roller reversible rolling mill through three to seven passes;
(III) cleaning: soaking in an alkali liquor soaking tank, scrubbing with alkali, scrubbing with water, drying, and rolling;
(IV) annealing: carrying out continuous annealing by using a muffle type bright annealing furnace;
(V) coating: coating the surface of the oriented silicon steel strip, and then sintering and drying at the sintering speed of 5-60 m/min.
(VI) shearing: and performing edge finishing on the coated oriented silicon steel strip or shearing the whole oriented silicon steel strip into a plurality of strips.
The industrial oriented silicon steel plate is pickled to produce the oriented silicon steel strip without the bottom layer.
After rolling in three to seven passes, the oriented silicon steel plate with the thickness of 0.23mm and without the bottom layer is rolled into an oriented silicon steel thin strip with the thickness of 0.08 mm.
The cleaning speed of the oriented silicon steel strip is 20-60 m/min, the tension is 50-120 kg, and the drying temperature is 50-150 ℃.
Protective atmosphere N in muffle type bright annealing furnace during annealing2+NH3(1: 1), the annealing temperature is 800-1000 ℃, the internal tension of the annealing furnace is 5-40 kg, and the heat preservation time is 10-100S.
The coating is an insulating coating, and the tension of the coating is 40 kg-120 kg.
According to detection of Epstein circles, the electromagnetic performance of the finished oriented silicon steel strip is P1.5/400= 10-16W/kg, and B8/400= 1.75-1.88T.
The shearing speed is 20-160 m/min.
Example 8
A production process of an oriented silicon steel strip takes a finished industrial oriented silicon steel plate as a raw material, and comprises the following steps:
firstly, producing a non-bottom oriented silicon steel plate by adopting a finished industrial oriented silicon steel plate;
(II) rolling: rolling the oriented silicon steel plate without the bottom layer into an oriented silicon steel thin strip by using a twenty-roller reversible rolling mill through three to seven passes;
(III) cleaning: soaking in an alkali liquor soaking tank, scrubbing with alkali, scrubbing with water, drying, and rolling;
(IV) annealing: carrying out continuous annealing by using a muffle type bright annealing furnace;
(V) coating: coating the surface of the oriented silicon steel strip, and then sintering and drying at the sintering speed of 5-60 m/min.
(VI) shearing: and performing edge finishing on the coated oriented silicon steel strip or shearing the whole oriented silicon steel strip into a plurality of strips.
The industrial oriented silicon steel plate is pickled to produce the oriented silicon steel strip without the bottom layer.
After rolling in three to seven passes, the oriented silicon steel plate with the thickness of 0.23mm and without the bottom layer is rolled into an oriented silicon steel thin strip with the thickness of 0.05 mm.
The cleaning speed of the oriented silicon steel strip is 20-60 m/min, the tension is 50-120 kg, and the drying temperature is 50-150 ℃.
Protective atmosphere N in muffle type bright annealing furnace during annealing2+NH3(1: 1), the annealing temperature is 800-1000 ℃, the internal tension of the annealing furnace is 5-40 kg, and the heat preservation time is 10-100S.
The coating is an insulating coating, and the tension of the coating is 40 kg-120 kg.
According to detection of Epstein circles, the electromagnetic performance of the finished oriented silicon steel strip is P1.5/400= 10-16W/kg, and B8/400= 1.75-1.88T.
The shearing speed is 20-160 m/min.
An asymmetric twenty-high rolling mill for a process of producing a thin strip of oriented silicon steel, the upper roll train 2 comprising: nine upper supporting rollers positioned on the upper layer, an upper working roller positioned below the supporting rollers and an upper horizontal supporting plate positioned below the working rollers; the upper supporting roller and the upper working roller are connected with the rack housing 1 through bearings, and the upper horizontal supporting plate is fixedly connected with the rack housing 1.
The lower roll system 3 includes: nine lower supporting rollers positioned at the lower layer, a lower working roller positioned above the lower supporting roller and a lower horizontal supporting plate positioned above the lower working roller; the two ends of the lower supporting roll and the two ends of the lower working roll are both connected with the rack housing 1 through bearings, and the lower horizontal supporting plate is fixedly connected with the rack housing 1;
the lower end face of the upper horizontal supporting plate is horizontal to the lower end of the lower working roll, and the upper end face of the lower horizontal supporting plate is horizontal to the upper end of the upper working roll.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (8)
1. A production process of an oriented silicon steel strip takes a finished industrial oriented silicon steel plate as a raw material, and is characterized by comprising the following steps:
firstly, producing a non-bottom oriented silicon steel plate by adopting a finished industrial oriented silicon steel plate;
(II) rolling: rolling the oriented silicon steel plate without the bottom layer into an oriented silicon steel thin strip by using a twenty-roller reversible rolling mill through three to seven passes;
(III) cleaning: soaking in an alkali liquor soaking tank, scrubbing with alkali, scrubbing with water, drying, and rolling;
(IV) annealing: carrying out continuous annealing by using a muffle type bright annealing furnace;
(V) coating: coating the surface of the oriented silicon steel strip, and then sintering and drying at the sintering speed of 5-60 m/min;
(VI) shearing: and performing edge finishing on the coated oriented silicon steel strip or shearing the whole oriented silicon steel strip into a plurality of strips.
2. The process for producing the oriented silicon steel strip as claimed in claim 1, wherein the process comprises the following steps: the industrial oriented silicon steel plate is pickled to produce the oriented silicon steel strip without the bottom layer.
3. The process for producing the oriented silicon steel strip according to claim 2, characterized in that: rolling the orientation silicon steel plate with the thickness of 0.23-0.35 mm and without the bottom layer into an orientation silicon steel thin strip with the thickness of 0.02-0.15 mm through three-seven passes of rolling.
4. The process for producing the oriented silicon steel strip as claimed in claim 3, wherein the process comprises the following steps: the cleaning speed of the oriented silicon steel strip is 20-60 m/min, the tension is 50-120 kg, and the drying temperature is 50-150 ℃.
5. The process for producing the oriented silicon steel strip as claimed in claim 4, wherein the process comprises the following steps: protective atmosphere N in muffle type bright annealing furnace during annealing2+NH3(1: 1), the annealing temperature is 800-1000 ℃, the internal tension of the annealing furnace is 5-40 kg, and the heat preservation time is 10-100S.
6. The process for producing the oriented silicon steel strip as claimed in claim 5, wherein the process comprises the following steps: the coating is an insulating coating, and the tension of the coating is 40 kg-120 kg.
7. The process for producing the oriented silicon steel strip as claimed in claim 6, wherein the process comprises the following steps: according to detection of Epstein circles, the electromagnetic performance of the finished oriented silicon steel strip is P1.5/400= 10-16W/kg, and B8/400= 1.75-1.88T.
8. The process for producing the oriented silicon steel strip as claimed in claim 7, wherein: the shearing speed is 20-160 m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911332018.0A CN111118273A (en) | 2019-12-21 | 2019-12-21 | Production process of oriented silicon steel thin strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911332018.0A CN111118273A (en) | 2019-12-21 | 2019-12-21 | Production process of oriented silicon steel thin strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111118273A true CN111118273A (en) | 2020-05-08 |
Family
ID=70500852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911332018.0A Pending CN111118273A (en) | 2019-12-21 | 2019-12-21 | Production process of oriented silicon steel thin strip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111118273A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1743127A (en) * | 2005-09-29 | 2006-03-08 | 东北大学 | Method for producing oriented silicon steel band by continuous casting and rolling of thin plate slab |
| CN101643829A (en) * | 2009-09-08 | 2010-02-10 | 江油市丰威特种带钢有限责任公司 | Cold rolling orientation silicon steel production technology |
| CN103978031A (en) * | 2014-03-25 | 2014-08-13 | 宁波宝新不锈钢有限公司 | Asymmetric rolling method of twenty-high roll mill |
| CN104831038A (en) * | 2015-05-12 | 2015-08-12 | 苏州巨磁功能材料有限公司 | Manufacturing process of ultra-thin oriented silicon steel strip |
| CN106591555A (en) * | 2016-11-02 | 2017-04-26 | 浙江华赢特钢科技有限公司 | Technology for annealing non-oriented cold rolled silicon lamination after cold rolling |
| CN106583448A (en) * | 2016-12-08 | 2017-04-26 | 武汉钢铁股份有限公司 | Cold rolling method for high-magnetic-induction grain-oriented silicon steel in extremely thin specification |
| CN108315542A (en) * | 2018-02-08 | 2018-07-24 | 全球能源互联网研究院有限公司 | Ultra-thin orientation silicon steel plank and preparation method thereof |
| CN109468438A (en) * | 2018-12-21 | 2019-03-15 | 武汉万实新能源科技股份有限公司 | A kind of silicon steel strip production method |
| CN110241297A (en) * | 2019-06-03 | 2019-09-17 | 全球能源互联网研究院有限公司 | A kind of ultra-thin silicon steel band and preparation method thereof |
| CN209772567U (en) * | 2019-03-27 | 2019-12-13 | 包头市慧宇硅钢科技有限公司 | Surface painting system for oriented silicon steel ultrathin strip |
-
2019
- 2019-12-21 CN CN201911332018.0A patent/CN111118273A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1743127A (en) * | 2005-09-29 | 2006-03-08 | 东北大学 | Method for producing oriented silicon steel band by continuous casting and rolling of thin plate slab |
| CN101643829A (en) * | 2009-09-08 | 2010-02-10 | 江油市丰威特种带钢有限责任公司 | Cold rolling orientation silicon steel production technology |
| CN103978031A (en) * | 2014-03-25 | 2014-08-13 | 宁波宝新不锈钢有限公司 | Asymmetric rolling method of twenty-high roll mill |
| CN104831038A (en) * | 2015-05-12 | 2015-08-12 | 苏州巨磁功能材料有限公司 | Manufacturing process of ultra-thin oriented silicon steel strip |
| CN106591555A (en) * | 2016-11-02 | 2017-04-26 | 浙江华赢特钢科技有限公司 | Technology for annealing non-oriented cold rolled silicon lamination after cold rolling |
| CN106583448A (en) * | 2016-12-08 | 2017-04-26 | 武汉钢铁股份有限公司 | Cold rolling method for high-magnetic-induction grain-oriented silicon steel in extremely thin specification |
| CN108315542A (en) * | 2018-02-08 | 2018-07-24 | 全球能源互联网研究院有限公司 | Ultra-thin orientation silicon steel plank and preparation method thereof |
| CN109468438A (en) * | 2018-12-21 | 2019-03-15 | 武汉万实新能源科技股份有限公司 | A kind of silicon steel strip production method |
| CN209772567U (en) * | 2019-03-27 | 2019-12-13 | 包头市慧宇硅钢科技有限公司 | Surface painting system for oriented silicon steel ultrathin strip |
| CN110241297A (en) * | 2019-06-03 | 2019-09-17 | 全球能源互联网研究院有限公司 | A kind of ultra-thin silicon steel band and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 丁修坤等编著: "《高精度板带钢厚度控制的理论与实践》", 31 March 2009, 北京：冶金工业出版社 * |
| 中国材料研究学会组织编写: "《中国战略性新兴产业-新材料 新型合金材料-铝合金》", 31 December 2018, 北京：中国铁道出版 * |
| 何忠治等: "《特殊钢丛书 电工钢》", 31 May 2012, 北京：冶金工业出版社 * |
| 连家创等编著: "《轧钢设备及工艺 第1分册 钢板轧机》", 31 December 1985 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110983004B (en) | Production process of bottom-layer-free ultrathin strip oriented silicon steel master strip | |
| KR20170010794A (en) | Method for producing hot-plated product by hot rolling, direct cold rolling without pickling, and reduction annealing | |
| JP2018066040A (en) | HOT-ROLLED SHEET ANNEALING FACILITY OF Si-CONTAINING HOT-ROLLED STEEL SHEET, HOT-ROLLED SHEET ANNEALING METHOD AND DESCALING METHOD | |
| CN109136807B (en) | Titanium plate annealing method for obtaining good plate shape | |
| CN107675190A (en) | A kind of method for improving ultra-thin magnetic property of oriented silicon steel | |
| CN110479774B (en) | Method for eliminating pit defect on surface of thin hot-rolled pickled steel | |
| CN108396126A (en) | The soft state stainless steel band production method of ultra-thin accurate | |
| CN101348853A (en) | Method for reducing iron loss of common orientated electrical steel | |
| JP4813123B2 (en) | Method for producing austenitic stainless steel sheet with excellent surface quality | |
| CN111118273A (en) | Production process of oriented silicon steel thin strip | |
| CN110157979B (en) | Rolling method for improving surface quality of steel plate | |
| CN102534364B (en) | Production method capable of improving magnetic property of common grain-oriented silicon steel | |
| CN114367537B (en) | Method for eliminating surface stripe defect of ultra-pure ferrite stainless steel | |
| CN110669915A (en) | Production process of silicon steel sheet for controlling damping thickness fluctuation of non-oriented silicon steel | |
| CN112246882B (en) | Method for eliminating hot-dip galvanized transverse stripes of hot-rolled substrate | |
| CN111974812B (en) | Production method of super-thick steel plate | |
| CN110438324B (en) | Vacuum annealing method for cold-rolled titanium plate | |
| CN113774299A (en) | Continuous annealing and pickling treatment method for industrial pure titanium hot-strip coil | |
| JPS637333A (en) | Production of low iron loss grain oriented electrical steel sheet having excellent glass film characteristic | |
| CN111575452A (en) | Method for reducing hot-rolled pickling surface roughness of 10Cr17 stainless steel | |
| CN113102501B (en) | Method for improving surface quality of steel for automobile | |
| JPH0527694B2 (en) | ||
| CN107299201B (en) | Eliminate carbon content 0.40% or more cold rolling steel saw blade surface layer crackle method | |
| JPH07228958A (en) | Production of pure titanium sheet for industry | |
| CN112981070A (en) | Method for producing oriented silicon steel without pickling after normalization |
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: 20200508 |