CN107138525A - The method that think gauge silicon steel raw material is rolled into standard thickness cold-rolled products - Google Patents
The method that think gauge silicon steel raw material is rolled into standard thickness cold-rolled products Download PDFInfo
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- CN107138525A CN107138525A CN201710299720.6A CN201710299720A CN107138525A CN 107138525 A CN107138525 A CN 107138525A CN 201710299720 A CN201710299720 A CN 201710299720A CN 107138525 A CN107138525 A CN 107138525A
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- Prior art keywords
- rolled
- silicon steel
- thickness
- roll bending
- bell
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- 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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
-
- 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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/221—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by cold-rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0057—Coiling the rolled product
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a kind of method that think gauge silicon steel raw material is rolled into standard thickness cold-rolled products.This method includes：For thickness be 2.75mm~6.0mm hot rolled silicon steel roll bending, by its coupled pickling and tandem mill through pickling, be rolled into thickness be 1.8mm~2.75mm chill roll bending, then in bell furnace carry out bell-type annealing processing；The internal diameter of silicon steel roll bending after rewinding bundling unit handles bell-type annealing changes to 730~762mm by 610mm；Silicon steel roll bending after expanding by sour rolling mill is secondary roll after thickness be made be 0.5mm silicon steel chill volume, then carry out continuous annealing treatment.This method improves operating efficiency, has saved cost, and coil of strip internal diameter is expanded into satisfaction acid using rewinding unit is rolled into a mouthful size for uncoiling mandrel, realizes the insertion of technological process.
Description
Technical field
It is more particularly to a kind of that think gauge silicon steel raw material is rolled into standard thickness the present invention relates to technical field of steel production
Spend the method for cold-rolled products.
Background technology
In current cold rolling non-orientation silicon steel production procedure, main flow silicon steel product thickness is 0.5mm.Actual production process
In compactedness, unstable, the cold rolling mill maximum depression rate of hot rolling technique due to CSP rhythm of production
The series of factors such as restriction, the think gauge silicon steel product (general thickness is more than 2.75mm) for causing hot rolling to produce can not be once
It is rolled into 0.5mm.This part hot rolled silicon steel raw material, due to wherein containing the element silicon more than common coil of strip, therefore client approves
Degree difference is, it is necessary to which factory's price reduction agreement delivery, wastes the resource of enterprise.
The content of the invention
In order to solve the above technical problems, the present invention provides one kind, that think gauge silicon steel raw material is rolled into standard thickness is cold rolling
The method of product.
The present invention provides a kind of method that think gauge silicon steel raw material is rolled into standard thickness cold-rolled products, and it includes as follows
Step：
For thickness be 1.8mm~2.75mm hot rolled silicon steel roll bending, by its coupled pickling and tandem mill through pickling, be rolled into
Thickness is 0.5mm chill roll bending, then carries out continuous annealing treatment；
For thickness be 2.75mm~6.0mm hot rolled silicon steel roll bending, by its coupled pickling and tandem mill through pickling, be rolled into
Thickness is 1.8mm~2.75mm chill roll bending, and bell-type annealing processing is then carried out in bell furnace；Will in rewinding bundling unit
The internal diameter of silicon steel roll bending after bell-type annealing processing changes to 730~762mm by 610mm；Silicon steel roll bending after expanding rolls by acid
Unit is secondary roll after the silicon steel chill volume that thickness is 0.5mm is made, then carry out continuous annealing treatment；
The process conditions of the bell-type annealing are as follows：It is rapidly heated to 690 DEG C, 8h is incubated afterwards, slow cooling 2h is down to 620
DEG C, it is air-cooled to drop to water cooling after 380 DEG C and come out of the stove to 138 DEG C.
The present invention compared with the prior art, with following significant advantage and effect：
(1) implement after the present invention, the hot rolled silicon steel raw material that most thickness can be exceeded to 2.75mm rolls by secondary
System is rolled into 0.5mm cold rolled silicon steel, has saved cost.
(2) coil of strip once rolled is annealed using bell furnace, by optimizing annealing curve, when having saved annealing
Between, improve production efficiency.
(3) coil of strip internal diameter is expanded to satisfaction acid using rewinding unit and is rolled into a mouthful size for uncoiling mandrel, realize technique
The insertion of flow.
Brief description of the drawings
The technique stream for the method that think gauge silicon steel raw material is rolled into standard thickness cold-rolled products that Fig. 1 provides for the present invention
Cheng Tu；
Think gauge silicon steel raw material is rolled into what is used in the method for standard thickness cold-rolled products by Fig. 2 for what the present invention was provided
The annealing curve figure of bell-type annealing technique.
Embodiment
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
In a kind of specific embodiment, think gauge silicon steel raw material is rolled into standard thickness the invention provides one kind
The method of cold-rolled products；Fig. 1 is refer to, think gauge silicon steel raw material is rolled into standard thickness the figure shows what the present invention was provided
The technological process of the method for cold-rolled products.
The present invention provides a kind of method that think gauge silicon steel raw material is rolled into standard thickness cold-rolled products, and it includes as follows
Step：
For thickness be 1.8mm~2.75mm hot rolled silicon steel roll bending, by its coupled pickling and tandem mill through pickling, be rolled into
Thickness is 0.5mm chill roll bending, then carries out continuous annealing treatment；
For thickness be 2.75mm~6.0mm hot rolled silicon steel roll bending, by its coupled pickling and tandem mill through pickling, be rolled into
Thickness is 1.8mm~2.75mm chill roll bending, and bell-type annealing processing is then carried out in bell furnace；Will in rewinding bundling unit
The internal diameter of silicon steel roll bending after bell-type annealing processing changes to 730~762mm by 610mm；Silicon steel roll bending after expanding rolls by acid
Unit is secondary roll after the silicon steel chill volume that thickness is 0.5mm is made, then carry out continuous annealing treatment；
The process conditions of the bell-type annealing are as follows：It is rapidly heated to 690 DEG C, 8h is incubated afterwards, slow cooling 2h is down to 620
DEG C, it is air-cooled to drop to water cooling after 380 DEG C and come out of the stove to 138 DEG C.Fig. 2 is referred to, the figure is the annealing curve figure of think gauge silicon steel.
In the above-mentioned technical proposal that the present invention is provided, the think gauge hot rolled silicon steel raw material that cold rolling preceding process is produced is according to thickness
Difference, using different processing schemes：
For thickness be 1.8mm~2.75mm hot rolled silicon steel roll bending, by its coupled pickling and tandem mill through pickling, be rolled into
Thickness is 0.5mm chill roll bending, then carries out continuous annealing treatment；
For the hot rolled silicon steel roll bending that thickness is 2.75mm~6.0mm, calculated according to compression ratio, roll process in cold rolling acid and enter
Row is rolled twice.1.8mm to 2.75mm chill coil of strip is rolled into for the first time, will after bell-type annealing furnace annealing, smooth rewinding
Coil of strip internal diameter, which is expanded to, to be met acid and is rolled into a mouthful steel for mandrel of uncoiler breathing size (coil of strip internal diameter is between 727mm to 762mm)
Volume, then carries out the secondary silicon steel chill volume for being rolled into thickness for 0.5mm in sour rolling mill, then carries out continuous annealing.The party
Method utilizes the method that think gauge silicon steel raw material is rolled into standard thickness cold-rolled products the principle of secondary rolling, is found while coordinating
The batch annealing of silicon steel raw material, so that the coil of strip internal diameter rolled first is expanded between 727mm to 762mm.
The present invention compared with the prior art, with following significant advantage and effect：
(1) implement after the present invention, the hot rolled silicon steel raw material that most thickness can be exceeded to 2.75mm rolls by secondary
System is rolled into 0.5mm cold rolled silicon steel, has saved cost.
(2) coil of strip once rolled is annealed using bell furnace, by optimizing annealing curve, when having saved annealing
Between, improve production efficiency.
(3) coil of strip internal diameter is expanded to satisfaction acid using rewinding unit and is rolled into a mouthful size for uncoiling mandrel, realize technique
The insertion of flow.
The method provided by the present invention that think gauge silicon steel raw material is rolled into standard thickness cold-rolled products is carried out above
It is discussed in detail.Specific case used herein is set forth to the principle and embodiment of the present invention, above example
Explanation be only intended to help to understand the method and its core concept of the present invention.It should be pointed out that for the common of the art
For technical staff, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these
Improve and modification is also fallen into the protection domain of the claims in the present invention.
Claims (1)
1. a kind of method that think gauge silicon steel raw material is rolled into standard thickness cold-rolled products, it is characterised in that including following step
Suddenly：
For thickness be 1.8mm~2.75mm hot rolled silicon steel roll bending, by its coupled pickling and tandem mill through pickling, be rolled into thickness
For 0.5mm chill roll bending, continuous annealing treatment is then carried out；
For thickness be 2.75mm~6.0mm hot rolled silicon steel roll bending, by its coupled pickling and tandem mill through pickling, be rolled into thickness
For 1.8mm~2.75mm chill roll bending, bell-type annealing processing is then carried out in bell furnace；In rewinding bundling unit by bell-type
The internal diameter of silicon steel roll bending after annealing changes to 730~762mm by 610mm；Silicon steel roll bending after expanding passes through sour rolling mill
It is secondary roll after the silicon steel chill volume that thickness is 0.5mm is made, then carry out continuous annealing treatment；
The process conditions of the bell-type annealing are as follows：It is rapidly heated to 690 DEG C, 8h is incubated afterwards, slow cooling 2h is down to 620 DEG C, wind
It is cold to drop to water cooling after 380 DEG C and come out of the stove to 138 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710299720.6A CN107138525A (en) | 2017-05-02 | 2017-05-02 | The method that think gauge silicon steel raw material is rolled into standard thickness cold-rolled products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710299720.6A CN107138525A (en) | 2017-05-02 | 2017-05-02 | The method that think gauge silicon steel raw material is rolled into standard thickness cold-rolled products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107138525A true CN107138525A (en) | 2017-09-08 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710299720.6A Pending CN107138525A (en) | 2017-05-02 | 2017-05-02 | The method that think gauge silicon steel raw material is rolled into standard thickness cold-rolled products |
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| CN (1) | CN107138525A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2096516C1 (en) * | 1996-01-10 | 1997-11-20 | Акционерное общество "Новолипецкий металлургический комбинат" | Silicon electric steel and method of treatment thereof |
| JP2001158914A (en) * | 1999-11-30 | 2001-06-12 | Sumitomo Metal Ind Ltd | Method for producing double oriented silicon steel sheet |
| CN101607265A (en) * | 2009-06-11 | 2009-12-23 | 常熟华冶薄板有限公司 | The method of milling thin plate by four-high reversing cold mill |
| CN102127716A (en) * | 2011-01-16 | 2011-07-20 | 首钢总公司 | Low-temperature heating oriented electrical steel with good surface coating and production method thereof |
| CN102686751A (en) * | 2009-11-25 | 2012-09-19 | 塔塔钢铁艾默伊登有限责任公司 | Process to manufacture grain-oriented electrical steel strip and grain-oriented electrical steel produced thereby |
| CN103834908A (en) * | 2012-11-27 | 2014-06-04 | 宝山钢铁股份有限公司 | Production method for improving electromagnetic property of oriented silicon steel |
| CN104294022A (en) * | 2014-10-10 | 2015-01-21 | 北京科技大学 | Preparation method of high-magnetic-strength thin-gauge non-oriented silicon steel |
| CN104480386A (en) * | 2014-11-27 | 2015-04-01 | 武汉钢铁(集团)公司 | 0.2mm-thick non-oriented silicon steel for high-speed motor and production method of 0.2mm-thick non-oriented silicon steel |
| WO2016059101A1 (en) * | 2014-10-15 | 2016-04-21 | Sms Group Gmbh | Process for producing grain-oriented electrical steel strip and grain-oriented electrical steel strip obtained according to said process related applications |
| CN105798061A (en) * | 2016-03-23 | 2016-07-27 | 天津炬坤金属科技有限公司 | Cold rolling method of ultrathin precise medium-width tinplate substrate of 0.05-0.1 mm with mirror surface light |
| CN106399819A (en) * | 2016-06-16 | 2017-02-15 | 马鞍山钢铁股份有限公司 | Oriented silicon steel and preparing method thereof |
-
2017
- 2017-05-02 CN CN201710299720.6A patent/CN107138525A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2096516C1 (en) * | 1996-01-10 | 1997-11-20 | Акционерное общество "Новолипецкий металлургический комбинат" | Silicon electric steel and method of treatment thereof |
| JP2001158914A (en) * | 1999-11-30 | 2001-06-12 | Sumitomo Metal Ind Ltd | Method for producing double oriented silicon steel sheet |
| CN101607265A (en) * | 2009-06-11 | 2009-12-23 | 常熟华冶薄板有限公司 | The method of milling thin plate by four-high reversing cold mill |
| CN102686751A (en) * | 2009-11-25 | 2012-09-19 | 塔塔钢铁艾默伊登有限责任公司 | Process to manufacture grain-oriented electrical steel strip and grain-oriented electrical steel produced thereby |
| CN102127716A (en) * | 2011-01-16 | 2011-07-20 | 首钢总公司 | Low-temperature heating oriented electrical steel with good surface coating and production method thereof |
| CN103834908A (en) * | 2012-11-27 | 2014-06-04 | 宝山钢铁股份有限公司 | Production method for improving electromagnetic property of oriented silicon steel |
| CN104294022A (en) * | 2014-10-10 | 2015-01-21 | 北京科技大学 | Preparation method of high-magnetic-strength thin-gauge non-oriented silicon steel |
| WO2016059101A1 (en) * | 2014-10-15 | 2016-04-21 | Sms Group Gmbh | Process for producing grain-oriented electrical steel strip and grain-oriented electrical steel strip obtained according to said process related applications |
| CN104480386A (en) * | 2014-11-27 | 2015-04-01 | 武汉钢铁(集团)公司 | 0.2mm-thick non-oriented silicon steel for high-speed motor and production method of 0.2mm-thick non-oriented silicon steel |
| CN105798061A (en) * | 2016-03-23 | 2016-07-27 | 天津炬坤金属科技有限公司 | Cold rolling method of ultrathin precise medium-width tinplate substrate of 0.05-0.1 mm with mirror surface light |
| CN106399819A (en) * | 2016-06-16 | 2017-02-15 | 马鞍山钢铁股份有限公司 | Oriented silicon steel and preparing method thereof |
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Application publication date: 20170908 |