CN107904376A - A kind of method and device for preventing the flat volume of dual phase steel - Google Patents
A kind of method and device for preventing the flat volume of dual phase steel Download PDFInfo
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- CN107904376A CN107904376A CN201711053896.XA CN201711053896A CN107904376A CN 107904376 A CN107904376 A CN 107904376A CN 201711053896 A CN201711053896 A CN 201711053896A CN 107904376 A CN107904376 A CN 107904376A
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- 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
- C21D8/0226—Hot 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
- C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
An embodiment of the present invention provides a kind of method and device for preventing the flat volume of dual phase steel, the described method includes：Slab is rolled using Hot Rolling Mill, it is 860~900 DEG C to control exit temperature at finishing；The slab is cooled down using ultrafast cool equipment, it is 70~100 DEG C/s to control cooling velocity；Slab after cooling is carried out using section cooling region air-cooled；It is 580~640 DEG C to control coiling temperature；So, it is 860~900 DEG C by controlling exit temperature at finishing, controls cooling velocity to be 70~100 DEG C/s, it can be strip phase transformation accumulation energy, so that strip phase transformation occurs in advance, and the time is provided for phase transformation in laminar flow layer, phase transformation is finally completed before batching, prevents from undergoing phase transition again after strip coiling is coiled, forms flat volume；And then avoid dampening defect due to carrying out flat volume smooth appearance, lumber recovery is improved, also reduces the influence to follow-up cold rolling production.
Description
Technical field
The invention belongs to metallurgical technology field, more particularly to a kind of method and device for preventing the flat volume of dual phase steel.
Background technology
With the development of automobile industry, automobile steel is higher and higher to safety, energy saving requirement.More and more Automobile Plates
Manufacturer is using high-strength steel as automobile steel.Dual phase steel was often used due to its excellent processability by automobile last time as structure
Steel, safety steel.
But dual phase steel is since component and the production process system of technological reason routine in hot rolling production easily produce flat volume,
Flat volume brings difficulty to follow-up cold rolling production.
Flat volume is generally handled using levelling method in the prior art, but the coil of strip of ellipse is easily dampened smooth
Defect, influences also to damage equipment while lumber recovery.
The content of the invention
In view of the problems of the existing technology, an embodiment of the present invention provides a kind of method and dress for preventing the flat volume of dual phase steel
Put, for solving in the prior art in course of hot rolling, flat volume phenomenon, which easily occurs, in dual phase steel to be caused to influence follow-up cold rolling production
Technical problem.
The embodiment of the present invention provides a kind of method for preventing the flat volume of dual phase steel, the described method includes：
Slab is rolled using Hot Rolling Mill, it is 860~900 DEG C to control exit temperature at finishing；
The slab is cooled down using ultrafast cool equipment, it is 70~100 DEG C/s to control cooling velocity；
Slab after cooling is carried out using section cooling region air-cooled；
It is 580~640 DEG C to control coiling temperature.
In such scheme, when being cooled down using ultrafast cool equipment to the slab, the pressure of cooling water for 0.8~
1.0Mpa。
In such scheme, when being cooled down using ultrafast cool equipment to the slab, it is 600 to control ultrafast cold outlet temperature
~650 DEG C.
In such scheme, the exit temperature at finishing further includes：870~880 DEG C.
In such scheme, the mass percent of each chemical composition of dual phase steel is C：0.08~0.13；Si：0.15~
1.3；Mn：1.4~2.0；P≤0.02；S≤0.007；Alt：0.01~0.065；Mo：0.22~0.30；N≤0.005；Remaining
For Fe.
The embodiment of the present invention also provides a kind of device for preventing the flat volume of dual phase steel, and described device includes：
First control unit, for being rolled using Hot Rolling Mill to slab, the exit temperature at finishing for controlling slab is
860~900 DEG C；
Second control unit, for being cooled down using ultrafast cool equipment to the slab, control cooling velocity for 70~
100℃/s；
3rd control unit, it is air-cooled for being carried out using section cooling region to slab after cooling；
4th control unit, is 580~640 DEG C for controlling coiling temperature.
In such scheme, second control unit is additionally operable to：When being cooled down using ultrafast cool equipment to the slab,
The pressure for controlling cooling water is 0.8~1.0Mpa.
In such scheme, second control unit is additionally operable to：When being cooled down using ultrafast cool equipment to the slab,
It is 600~650 DEG C to control ultrafast cold outlet temperature.
In such scheme, the exit temperature at finishing further includes：870~880 DEG C.
In such scheme, the mass percent of each chemical composition of dual phase steel is：C：0.08~0.13；Si：0.15~
1.3；Mn：1.4~2.0；P≤0.02；S≤0.007；Alt：0.01~0.065；Mo：0.22~0.30；N≤0.005；Remaining
For Fe.
An embodiment of the present invention provides a kind of method and device for preventing the flat volume of dual phase steel, the described method includes：Utilize heat
Milling train group rolls slab, and it is 860~900 DEG C to control exit temperature at finishing；Using ultrafast cool equipment to the slab into
Row cooling, it is 70~100 DEG C/s to control cooling velocity；Slab after cooling is carried out using section cooling air-cooled；Control is batched
Temperature is 580~640 DEG C；In this way, it is 860~900 DEG C by controlling exit temperature at finishing, controls cooling velocity to be 70~100
DEG C/s, and can be strip phase transformation accumulation energy so that strip phase transformation occurs in advance, and when laminar flow layer provides for phase transformation
Between, phase transformation is finally completed before batching, prevents from undergoing phase transition again after strip coiling is coiled, forms flat volume, reduce to rear
The influence of continuous cold rolling production.
Brief description of the drawings
Fig. 1 is the method flow schematic diagram for preventing the flat volume of dual phase steel that the embodiment of the present invention one provides；
Fig. 2 is the apparatus structure schematic diagram provided by Embodiment 2 of the present invention for preventing the flat volume of dual phase steel.
Embodiment
In order to solve in the prior art in course of hot rolling, flat volume phenomenon, which easily occurs, in dual phase steel to be caused to influence follow-up cold rolling
Production so that the technical problem that strip lumber recovery declines, the present invention provides a kind of method for preventing the flat volume of dual phase steel and
Device, the described method includes：Slab is rolled using Hot Rolling Mill, it is 860~900 DEG C to control exit temperature at finishing；Profit
The slab is cooled down with ultrafast cool equipment, it is 70~100 DEG C/s to control cooling velocity；Using section cooling to cooling after
Slab carry out it is air-cooled；It is 580~640 DEG C to control coiling temperature.
Technical scheme is described in further detail below by drawings and the specific embodiments.
Embodiment one
The present embodiment provides a kind of method for preventing the flat volume of dual phase steel, as shown in Figure 1, the described method includes：
S101, rolls slab using Hot Rolling Mill, and it is 860~900 DEG C to control exit temperature at finishing；
During belt steel rolling, slab is rolled using Hot Rolling Mill, slab passes through roughing mills and essence successively
Milling train group, again cooled down strip by ultrafast cool equipment, layer cool equipment, is then batched.
It is 860~900 DEG C to need to control exit temperature at finishing in this step；Preferably 870~880 DEG C.
Here, the slab is dual phase steel, and the mass percent of each chemical composition of dual phase steel is：C：0.08~
0.13；Si：0.15~1.3；Mn：1.4~2.0；P≤0.02；S≤0.007；Alt：0.01~0.065；Mo：0.22~0.30；
N≤0.005；Remaining is Fe.
S102, cools down slab using ultrafast cool equipment, and it is 70~100 DEG C/s to control cooling velocity；Utilize laminar flow
Cooled region carries out slab after cooling air-cooled；
Then the slab is cooled down by force using ultrafast cool equipment, the pressure of cooling water is 0.8~1.0Mpa；It is preferred that
Ground is 0.9Mpa.Be strip phase transformation accumulation energy to improve the cooling velocity of strip, control cooling velocity for 70~100 DEG C/
s；It is 600~650 DEG C to control ultrafast cold outlet temperature.
Recycle section cooling to carry out slab after cooling air-cooled, i.e., without water-spraying control, provided for strip phase transformation
Time.
S103, it is 580~640 DEG C to control coiling temperature；
After section cooling, strip is batched, coiling temperature feedback device is opened when batching, controls the coiling temperature to be
580~640 DEG C.
Embodiment two
Corresponding to embodiment one, the present embodiment provides a kind of device for preventing the flat volume of dual phase steel, as shown in Fig. 2, the dress
Put including：First control unit 21, the second control unit 22, the 3rd control unit 23 and the 4th control unit 24；Wherein,
During belt steel rolling, slab is rolled using Hot Rolling Mill, slab passes through roughing mills and essence successively
Milling train group, again cooled down strip by ultrafast cool equipment, layer cool equipment, is then batched.
So the first control unit 21 is used to control the exit temperature at finishing of slab to be 860~900 DEG C；Preferably 870
~880 DEG C.
Here, the slab is dual phase steel, and the mass percent of each chemical composition of dual phase steel is：C：0.08~
0.13；Si：0.15~1.3；Mn：1.4~2.0；P≤0.02；S≤0.007；Alt：0.01~0.065；Mo：0.22~0.30；
N≤0.005；Remaining is Fe.
Second control unit 22 is used to cool down the slab using ultrafast cool equipment, and the pressure for controlling cooling water is
0.8~1.0Mpa；Preferably 0.9Mpa.In order to improve the cooling velocity of strip, it is strip phase transformation accumulation energy, also needs to control
Cooling velocity is 70~100 DEG C/s；It is 600~650 DEG C to control ultrafast cold outlet temperature.
3rd control unit 23 recycling is air-cooled to slab after cooling progress using section cooling region, i.e., without spray
Water cooling, the time is provided for strip phase transformation.
After section cooling, strip is batched, it is 580~640 DEG C that the 4th control unit 24, which is used to control coiling temperature,.
, can be to avoid flat volume in coiling process so since strip just completes tissue inter-variable in laminar cooling process
Occur.
In practical application, first control unit 21, second control unit 22, the 3rd control unit 23 and
4th control unit 25 can be real by programmable logic controller (PLC) (PLC, Programmable LogicController)
It is existing.
Embodiment three
In practical application, when the steel grade to certain model is rolled, batched, it is implemented as follows：
During belt steel rolling, slab is rolled using Hot Rolling Mill, slab passes through roughing mills and essence successively
Milling train group, again cooled down strip by ultrafast cool equipment, layer cool equipment, is then batched.
It is 890 DEG C to need to control exit temperature at finishing in this step.Here, the slab is dual phase steel, the dual phase steel
The mass percent of each chemical composition is：C：0.08~0.13；Si：1.1~1.2；Mn：1.9~2.0；P≤0.02；S≤
0.025；Alt：0.01~0.06；Remaining is Fe.
Then the slab is cooled down by force using ultrafast cool equipment, the pressure of cooling water is 0.9Mpa.In order to improve
The cooling velocity of strip, is strip phase transformation accumulation energy, and it is 75 DEG C/s to control cooling velocity；The ultrafast cold outlet temperature is controlled to be
640℃。
Recycle section cooling to carry out slab after cooling air-cooled, i.e., without water-spraying control, provided for strip phase transformation
Time.
After section cooling, strip is batched, controlled when batching coiling temperature be 620 DEG C, using power reel into
Row is batched in rolls, without flat volume phenomenon.
Example IV
In practical application, when the steel grade to certain model is rolled, batched, it is implemented as follows：
During belt steel rolling, slab is rolled using Hot Rolling Mill, slab passes through roughing mills and essence successively
Milling train group, again cooled down strip by ultrafast cool equipment, layer cool equipment, is then batched.
It is 860 DEG C to need to control exit temperature at finishing in this step.Here, the slab is dual phase steel, the dual phase steel
The mass percent of each chemical composition is：C：0.08~0.13；Si：1.1~1.2；Mn：1.9~2.0；P≤0.02；S≤
0.025；Alt：0.01~0.06；Remaining is Fe.
Then the slab is cooled down by force using ultrafast cool equipment, the pressure of cooling water is 0.9Mpa.In order to improve
The cooling velocity of strip, is strip phase transformation accumulation energy, and it is 98 DEG C/s to control cooling velocity；The ultrafast cold outlet temperature is controlled to be
600℃。
Recycle section cooling to carry out slab after cooling air-cooled, i.e., without water-spraying control, provided for strip phase transformation
Time.
After section cooling, strip is batched, controlled when batching coiling temperature be 580 DEG C, using power reel into
Row is batched in rolls, without flat volume phenomenon.
Embodiment five
In practical application, when the steel grade to another model is rolled, batched, it is implemented as follows：
During belt steel rolling, slab is rolled using Hot Rolling Mill, slab passes through roughing mills and essence successively
Milling train group, again cooled down strip by ultrafast cool equipment, layer cool equipment, is then batched.
It is 860 DEG C to need to control exit temperature at finishing in this step.Here, the slab is dual phase steel, the dual phase steel
The mass percent of each chemical composition is：C：0.085~0.115；Si：0.15~0.25；Mn：1.45~1.55；P≤0.02；S
≤0.007；Alt：0.035~0.065；Cr：0.14~0.24；Mo：0.22~0.30；N≤0.005；Remaining is Fe.
Then the slab is cooled down by force using ultrafast cool equipment, the pressure of cooling water is 0.9Mpa.In order to improve
The cooling velocity of strip, is strip phase transformation accumulation energy, and it is 98 DEG C/s to control cooling velocity；The ultrafast cold outlet temperature is controlled to be
650℃。
Recycle section cooling to carry out slab after cooling air-cooled, i.e., without water-spraying control, provided for strip phase transformation
Time.
After section cooling, strip is batched, controlled when batching coiling temperature be 640 DEG C, using power reel into
Row is batched in rolls, without flat volume phenomenon.
Embodiment six
In practical application, when the steel grade to another model is rolled, batched, it is implemented as follows：
During belt steel rolling, slab is rolled using Hot Rolling Mill, slab passes through roughing mills and essence successively
Milling train group, again cooled down strip by ultrafast cool equipment, layer cool equipment, is then batched.
It is 870 DEG C to need to control exit temperature at finishing in this step.Here, the slab is dual phase steel, the dual phase steel
The mass percent of each chemical composition is：C≤0.11~0.13；Si≤1.1~1.3；Mn：1.40~1.60；P≤0.02；S≤
0.007；Alt：0.035~0.065；N：0.005；Remaining is Fe.
Then the slab is cooled down by force using ultrafast cool equipment, the pressure of cooling water is 0.9Mpa.In order to improve
The cooling velocity of strip, is strip phase transformation accumulation energy, and it is 98 DEG C/s to control cooling velocity；The ultrafast cold outlet temperature is controlled to be
650℃。
Recycle section cooling to carry out slab after cooling air-cooled, i.e., without water-spraying control, provided for strip phase transformation
Time.
After section cooling, strip is batched, controlled when batching coiling temperature be 640 DEG C, using power reel into
Row is batched in rolls, without flat volume phenomenon.
The beneficial effect that the method and device provided in an embodiment of the present invention for preventing the flat volume of dual phase steel can be brought is at least：
An embodiment of the present invention provides a kind of method and device for preventing the flat volume of dual phase steel, the described method includes：Utilize heat
Milling train group rolls slab, and the exit temperature at finishing for controlling slab is 860~900 DEG C；Using ultrafast cool equipment to described
Slab is cooled down, and it is 70~100 DEG C/s to control cooling velocity；Slab after cooling is carried out using section cooling region empty
It is cold；It is 580~640 DEG C to control coiling temperature；In this way, by controlling exit temperature at finishing as 860~900 DEG C, control cooling water
Cooling velocity be 70~100 DEG C/s, can be strip phase transformation accumulation energy so that strip phase transformation occurs in advance, and in laminar flow
Layer provides the time for phase transformation, and phase transformation is finally completed before batching, prevents that phase occurs again after strip coiling is coiled
Become, form flat volume；And then avoid due to flat volume is carried out it is smooth occur dampening defect, improve lumber recovery, while avoid pair
The damage of taking-up equipment, also reduces the influence to follow-up cold rolling production.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention, it is all
All any modification, equivalent and improvement made within the spirit and principles in the present invention etc., should be included in the protection of the present invention
Within the scope of.
Claims (10)
- A kind of 1. method for preventing the flat volume of dual phase steel, it is characterised in that the described method includes：Slab is rolled using Hot Rolling Mill, it is 860~900 DEG C to control exit temperature at finishing；The slab is cooled down using ultrafast cool equipment, it is 70~100 DEG C/s to control cooling velocity；Slab after cooling is carried out using section cooling region air-cooled；It is 580~640 DEG C to control coiling temperature.
- 2. the method as described in claim 1, it is characterised in that cold when being cooled down using ultrafast cool equipment to the slab But the pressure of water is 0.8~1.0Mpa.
- 3. the method as described in claim 1, it is characterised in that when being cooled down using ultrafast cool equipment to the slab, control Ultrafast cold outlet temperature is made as 600~650 DEG C.
- 4. the method as described in claim 1, it is characterised in that the exit temperature at finishing further includes：870~880 DEG C.
- 5. the method as described in claim 1, it is characterised in that the mass percent of each chemical composition of dual phase steel is C： 0.08~0.13；Si：0.15~1.3；Mn：1.4~2.0；P≤0.02；S≤0.007；Alt：0.01~0.065；Mo：0.22 ~0.30；N≤0.005；Remaining is Fe.
- 6. a kind of device for preventing the flat volume of dual phase steel, it is characterised in that described device includes：First control unit, for being rolled using Hot Rolling Mill to slab, control the exit temperature at finishing of slab for 860~ 900℃；Second control unit, for being cooled down using ultrafast cool equipment to the slab, it is 70~100 to control cooling velocity ℃/s；3rd control unit, it is air-cooled for being carried out using section cooling region to slab after cooling；4th control unit, is 580~640 DEG C for controlling coiling temperature.
- 7. device as claimed in claim 6, it is characterised in that second control unit is additionally operable to：Utilize ultrafast cool equipment When being cooled down to the slab, the pressure for controlling cooling water is 0.8~1.0Mpa.
- 8. device as claimed in claim 6, it is characterised in that second control unit is additionally operable to：Utilize ultrafast cool equipment When being cooled down to the slab, it is 600~650 DEG C to control ultrafast cold outlet temperature.
- 9. device as claimed in claim 6, it is characterised in that the exit temperature at finishing further includes：870~880 DEG C.
- 10. device as claimed in claim 6, it is characterised in that the mass percent of each chemical composition of dual phase steel is：C： 0.08~0.13；Si：0.15~1.3；Mn：1.4~2.0；P≤0.02；S≤0.007；Alt：0.01~0.065；Mo：0.22 ~0.30；N≤0.005；Remaining is Fe.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110639959A (en) * | 2018-06-26 | 2020-01-03 | 宝山钢铁股份有限公司 | Control method for preventing flat rolling of hot-rolled strip steel |
| CN110699532A (en) * | 2019-09-30 | 2020-01-17 | 唐山钢铁集团高强汽车板有限公司 | Method for reducing cold-rolled double-phase steel base material strip-shaped structure and flat-winding defects |
| CN111408625A (en) * | 2020-03-16 | 2020-07-14 | 武汉钢铁有限公司 | Flat coil control method for hot rolling advanced high-strength steel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030042798A (en) * | 2001-11-24 | 2003-06-02 | 주식회사 포스코 | Method for hot rolling of high carbon steel in low temperature to prevent coil collapse |
| CN102605240A (en) * | 2011-12-09 | 2012-07-25 | 首钢总公司 | High-strength and high-plasticity dual-phase steel and manufacturing method thereof |
| CN102605251A (en) * | 2012-03-28 | 2012-07-25 | 东北大学 | Method for preparing hot-rolled double-phase steel by front super-quick cooling process |
| CN104745784A (en) * | 2015-04-03 | 2015-07-01 | 首钢总公司 | Method for eliminating strapping steel hot rolling flat roll defect |
| CN105908090A (en) * | 2016-04-20 | 2016-08-31 | 本钢板材股份有限公司 | Hot-roll dual-phase steel, and production method for preventing squashed roll of the hot-roll dual-phase steel |
| CN206122342U (en) * | 2016-10-28 | 2017-04-26 | 唐山不锈钢有限责任公司 | Can prevent device of flat book of hot rolling sheet |
-
2017
- 2017-10-31 CN CN201711053896.XA patent/CN107904376A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030042798A (en) * | 2001-11-24 | 2003-06-02 | 주식회사 포스코 | Method for hot rolling of high carbon steel in low temperature to prevent coil collapse |
| CN102605240A (en) * | 2011-12-09 | 2012-07-25 | 首钢总公司 | High-strength and high-plasticity dual-phase steel and manufacturing method thereof |
| CN102605251A (en) * | 2012-03-28 | 2012-07-25 | 东北大学 | Method for preparing hot-rolled double-phase steel by front super-quick cooling process |
| CN104745784A (en) * | 2015-04-03 | 2015-07-01 | 首钢总公司 | Method for eliminating strapping steel hot rolling flat roll defect |
| CN105908090A (en) * | 2016-04-20 | 2016-08-31 | 本钢板材股份有限公司 | Hot-roll dual-phase steel, and production method for preventing squashed roll of the hot-roll dual-phase steel |
| CN206122342U (en) * | 2016-10-28 | 2017-04-26 | 唐山不锈钢有限责任公司 | Can prevent device of flat book of hot rolling sheet |
Non-Patent Citations (2)
| Title |
|---|
| 张翰龙，等: ""关于热轧钢卷扁卷缺陷研究的最新进展"", 《宝钢技术》 * |
| 轧制技术及连轧自动化国家重点实验室（东北大学）: "《热轧双相钢先进生产工艺研究与开发》", 31 October 2015 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110639959A (en) * | 2018-06-26 | 2020-01-03 | 宝山钢铁股份有限公司 | Control method for preventing flat rolling of hot-rolled strip steel |
| CN110699532A (en) * | 2019-09-30 | 2020-01-17 | 唐山钢铁集团高强汽车板有限公司 | Method for reducing cold-rolled double-phase steel base material strip-shaped structure and flat-winding defects |
| CN110699532B (en) * | 2019-09-30 | 2021-10-12 | 唐山钢铁集团高强汽车板有限公司 | Method for reducing cold-rolled double-phase steel base material strip-shaped structure and flat-winding defects |
| CN111408625A (en) * | 2020-03-16 | 2020-07-14 | 武汉钢铁有限公司 | Flat coil control method for hot rolling advanced high-strength steel |
| CN111408625B (en) * | 2020-03-16 | 2022-02-01 | 武汉钢铁有限公司 | Flat coil control method for hot rolling advanced high-strength steel |
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Application publication date: 20180413 |