CN108796373A - A kind of the generator excitation element steel and its manufacturing method of CSP technique productions - Google Patents
A kind of the generator excitation element steel and its manufacturing method of CSP technique productions Download PDFInfo
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- CN108796373A CN108796373A CN201810663393.2A CN201810663393A CN108796373A CN 108796373 A CN108796373 A CN 108796373A CN 201810663393 A CN201810663393 A CN 201810663393A CN 108796373 A CN108796373 A CN 108796373A
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
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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
- C21D8/12—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
- C21D8/1222—Hot rolling
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- 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
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- 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
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- 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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- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
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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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/003—Cementite
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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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
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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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/009—Pearlite
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Abstract
The present invention relates to exchange bavin (vapour) fry dried food ingredients motor excitation element steel, and in particular to a kind of the generator excitation element steel and its manufacturing method of CSP technique productions, chemical constituent and weight percentage are：C≤0.10%, Mn：0.5~1.5%, Si≤0.40%, P≤0.025%, S≤0.025%, Nb≤0.030%, Ti≤0.030%, Als >=0.015%, N≤0.010%, surplus is Fe and other inevitable impurity, the manufacturing method of the steel uses CSP short routes, includes following production stage successively：Blast furnace ironmaking → molten iron pretreatment → converter smelting → RH application of vacuum → sheet blank continuous casting → soaking pit → de-scaling → finish rolling → section cooling → is batched.By using Nb-Ti composite micro-alloyed steels are used, convenient for smelting control, production is stablized；Using CSP continuous casting and rolling technique of sheet bar, this method production process is short, unit operation speed is fast, production efficiency is high；What production obtained has good magnetic property and mechanical performance, meets the performance requirement for exchanging bavin (vapour) fry dried food ingredients motor at present to field element steel.
Description
Technical field
The invention patent relates to exchange bavin (vapour) fry dried food ingredients motor excitation element steel, and in particular to a kind of CSP technique productions
Generator excitation element steel and its manufacturing method.
Background technology
With the rapid development of national economy and the raising of living standards of the people, most of factory, hotel, restaurant etc. are all certainly
Standby emergency power station, bavin (vapour) fry dried food ingredients motor are just obtaining increasingly extensive application.In order to adapt to bavin (vapour) fry dried food ingredients motor " light shape "
The requirement of " high efficiency " proposes higher high magnetic strength, the requirements such as high-coercive force and low iron loss to generator excitation element.
In existing field element steel, the more magnetic pole steel for being related to large-scale hydroelectricity generator and using, this magnetic pole steel
There is high requirement to magnetic induction, coercivity and iron loss is not distinctly claimed, such as application No. is CN201210358802.0
With application No. is CN201210165348.7 all to mention a kind of manufacturing method of 250MPa grade cold rolled magnetic pole steels.
Invention content
In view of the deficiencies of the prior art, the present invention proposes a kind of CSP abbreviated systems steady production field element steel
And its manufacturing method, ensure suitable mechanical performance simultaneously, meets higher magnetic property.
To achieve the above object, the invention discloses a kind of generator excitation element steel of CSP technique productions, components
And weight percentage is：C≤0.10%, Mn:0.5~1.5%, Si≤0.40%, P≤0.025%, S≤0.025%, Nb
≤ 0.030%, Ti≤0.030%, Als >=0.015%, N≤0.010%, surplus are Fe and other inevitable impurity.
Specifically, the component and weight percentage of the generator excitation element steel of the CSP technique productions are：C：
0.05~0.10%, Mn：0.70~1.0%, Si≤0.35%, P≤0.015%, S≤0.024%, Nb≤0.030%, Ti≤
0.030%, Als >=0.040%, N≤0.006%, remaining is Fe and inevitable impurity.
A kind of manufacturing method of the generator excitation element steel of above-mentioned CSP technique productions, using CSP short routes, successively
Including following production stage：Blast furnace ironmaking → molten iron pretreatment → converter smelting → RH application of vacuum → sheet blank continuous casting → soaking
Stove → de-scaling → finish rolling → section cooling → is batched.
Specifically, the sheet blank continuous casting is cast using whole process protection, long nozzle is protected using asbestos bowl when big packet is replaced
Shield casting, middle water containing opening are passed through argon gas protective casting；Tundish uses to be wrapped in dry materials, Covering Agent In Basic Mould.
Specifically, the soaking pit charging temperature control is at 800~950 DEG C, time inside furnace is more than 15min, same after coming out of the stove
The plate temperature difference is less than 20 DEG C, and tapping temperature is controlled at 1230 ± 20 DEG C.
Specifically, the finishing temperature control of the finish rolling is at 820 ± 20 DEG C, oiler temperature control is at 620 ± 20 DEG C.
The reasons why present component range is set：
C≤0.10% of the present invention, C is good solution strengthening element, improves armor plate strength easily and economically, but C
Constituent content is excessively high to make the toughness of steel and magnetic induction performance be decreased obviously, in order to ensure that steel plate mechanical performance and magnetic property contain carbon
Amount control is below 0.10%.
The Mn contents selection of the present invention can significantly improve steel plate as displaced type solid solution element in 0.5~1.50%, Mn and bend
Take intensity and tensile strength, but steel plate magnetic induction intensity increases with Mn contents and reduced, thus to control Mn contents 0.5~
Between 1.5%.
Si≤0.40% of the present invention, Si can significantly improve intensity and be influenced less on magnetic property, but can reduce the modeling of steel
Property, so that steel plate is become fragile, influence the processing performance and surface quality of steel plate, therefore Si contents are unsuitable excessively high.
The P≤0.025%, S≤0.025%, S and P of the present invention belongs to harmful element in steel, is easy to form TiS, MnS
Equal objectionable impurities, damage the intensity and magnetic property of steel plate, therefore S, P content should be reduced in actual production.
The present invention Als >=0.015%, Al is strong deoxidier, and main function is the oxygen (O) sloughed in molten steel, prevent Nb,
Ti alloy oxidations fail.
Ti≤0.030% of the present invention, Ti is a kind of strong carbide and nitride forming element, carbon, the nitrogen of formation
Compound can be reheated in steel and high temperature austenite area rough rolling process in prevent Austenite Grain Growth, play the work of crystal grain thinning
With improving the toughness of steel.Small and dispersed TiC, which is precipitated, in coil ing one can play significant precipitating reinforcing effect, to effectively
Improve armor plate strength.
Nb≤0.030% of the present invention, a certain amount of niobium energy significantly crystal grain thinning simultaneously improve intensity.Niobium is in During Controlled Rolling
In, it can improve the recrystallization temperature of steel, reduce mill load, while by inhibiting to recrystallize and crystal grain being prevented to grow up, it can be with
Fining austenite grains size.During roller repairing, NbC and the small particles of NbN are precipitated, can be with the effect of precipitation strength.
N≤0.010% of the present invention, N belong to normal remaining in converter, can be combined to form TiC, NbN with titanium, niobium in steel
It is precipitated, plays the role of inhibiting Austenite Grain Growth and precipitation strength.
The reasons why production method process parameter control of the present invention：
Field element of the present invention is continuous casting and rolling technique of sheet bar with steel：In continuous casting casting process, using whole process protection
Casting, long nozzle uses asbestos bowl protective casting, middle water containing opening to be passed through argon gas protective casting when big packet is replaced.Tundish uses
It is wrapped in dry materials, Covering Agent In Basic Mould.For the control of soaking pit charging temperature at 800~950 DEG C, time inside furnace is more than 15min, goes out
It is less than 20 DEG C with the plate temperature difference after stove, tapping temperature is controlled at 1230 ± 20 DEG C.Come into operation online furnace roller liquidation procedures before open rolling, specifically
Furnace atmosphere is adjusted according to iron scale situation.High-pressure water descaler de-scaling can ensure that steel billet is abundant using high heating temperature
Austenitizing achievees the purpose that even tissue, while compound can fully dissolve in steel, be precipitated in cooling procedure, can play thin
Change the effect of crystal grain.Finishing temperature control is at 820 ± 20 DEG C, and oiler temperature control is at 620 ± 20 DEG C, it is ensured that precipitated phase is abundant
It is precipitated, is conducive to crystal grain thinning, improve coercivity.
The beneficial effects of the invention are as follows：
1) field element of the present invention is designed with composition of steel and uses Nb-Ti composite micro-alloyed steels, and convenient for smelting control, production is steady
It is fixed.
2) present invention uses CSP continuous casting and rolling technique of sheet bar, and this method production process is short, unit operation speed is fast, raw
It produces efficient.
3) field element produced by the invention is with steel metallographic structure：Ferrite+pearlite+free cementite+a small amount of shape
Become tissue, between yield strength >=350MPa of the steel plate in production, tensile strength >=450MPa, elongation percentage >=18% is magnetic
(wherein B50 indicates magnetic flux when magnetic field intensity is 5000A/m by energy B50 >=1.59T, Hc1.0 >=400A/m, P1.5≤30W/kg
Density, P1.5 indicate core loss value when magnetic flux density is 1.5T；Steel density 7.85g/cm3, ac magnetization attribute testing, frequency
50Hz, square circle experimental rig, test sample are lateral, longitudinal each half；Hc1.0 indicates coercive when magnetic flux density is 1.0T
Power, steel density 7.85g/cm3, DC magnetizing characteristic experiment, square circle experimental rig, test sample is lateral, longitudinal direction each one
Half).
Specific implementation mode
The present invention is described in detail below：
Table 1 is the chemical composition of various embodiments of the present invention；
Table 2 is various embodiments of the present invention end properties testing result；
Various embodiments of the present invention field element with steel produce use CSP short routes for：Blast furnace ironmaking → molten iron pretreatment →
Converter smelting → RH processing → wave sheet billet continuous casting → soaking pit → de-scaling → finish rolling → section cooling → is batched.
Various embodiments of the present invention field element is with steel chemical ingredients by weight percent：C≤0.10%, Mn:0.5~
1.5%, Si≤0.40%, P≤0.025%, S≤0.025%, Nb≤0.030%, Ti≤0.030%, Als >=0.015%, N
≤ 0.010%, surplus is Fe and other inevitable impurity, and specific each embodiment chemical composition is shown in Table 1.
It is as follows：Molten iron KR stirring desulphurizations control [S]≤0.025%, then carry out converter
Top bottom blowing, alloying, using RH application of vacuum.So that the chemical composition in steel is met the requirement of table 1, surplus be Fe and
Inevitably it is mingled with.The molten steel that table 1 requires will be met, 70mm thickness continuous slab bands, then root are poured into using thin-slab caster
Sheet billet is cut into according to cut lengths is required.Then for slab by soaking pit soaking, entering furnace plate base must be straight, ensures that slab enters
Stove is steady, and for the control of soaking pit charging temperature at 800~950 DEG C, time inside furnace is more than 15min,6It is less than 20 with the plate temperature difference after coming out of the stove
DEG C, tapping temperature is controlled at 1130 ± 20 DEG C.Come into operation online furnace roller liquidation procedures before open rolling, with specific reference to iron scale situation tune
Whole furnace atmosphere.High-pressure water descaler de-scaling.Then controlled rolling, finish to gauge temperature are directly carried out on 7 rack hot tandems
Degree control is at 820 ± 20 DEG C, and for oiler temperature control at 620 ± 20 DEG C, the steel band of rolling coils into heat after laminar flow is quickly cooled down
Rolled steel coils are cut into steel plate.
It using continuous casting and rolling technique of sheet bar, in continuous casting casting process, is cast using whole process protection, big packet replaces duration
The mouth of a river uses asbestos bowl protective casting, middle water containing opening to be passed through argon gas protective casting.Tundish uses to be wrapped in dry materials, in alkalinity
Covering agent.Soaking pit time inside furnace is more than 15min, is less than 20 DEG C with the plate temperature difference after coming out of the stove.The online furnace roller that comes into operation before open rolling is clear
Program is managed, furnace atmosphere is adjusted with specific reference to iron scale situation.High-pressure water descaler de-scaling, using high heating temperature.
Embodiment 1：Corresponding embodiment chemical composition is shown in Table 2 by weight percentage, and surplus is Fe and other are inevitable
Impurity；The strand that thickness is 70mm is sent into roller hearth soaking furnace, 1215 DEG C of tapping temperature is vertical by high-pressure water descaler
Milling train roughing is rolled to 1.0mm thin plates, 815 DEG C of finishing temperature, 615 DEG C of coiling temperature using 7 frame tandem mill finishing.Reality is made
Apply the field element steel of example 1.
Embodiment 2：Corresponding embodiment chemical composition is shown in Table 2 by weight percentage, and surplus is Fe and other are inevitable
Impurity；The strand that thickness is 70mm is sent into roller hearth soaking furnace, 1230 DEG C of tapping temperature is vertical by high-pressure water descaler
Milling train roughing is rolled to 1.2mm thin plates, 815 DEG C of finishing temperature, 620 DEG C of coiling temperature using 7 frame tandem mill finish rolling.Reality is made
Apply the field element steel of example 2.
Embodiment 3：Corresponding embodiment chemical composition is shown in Table 2 by weight percentage, and surplus is Fe and other are inevitable
Impurity；The strand that thickness is 70mm is sent into roller hearth soaking furnace, 1235 DEG C of tapping temperature is vertical by high-pressure water descaler
Milling train roughing is rolled to 1.5mm thin plates, 825 DEG C of finishing temperature, 625 DEG C of coiling temperature using 7 frame tandem mill finishing.Reality is made
Apply the field element steel of example 3.
Embodiment 4：Corresponding embodiment chemical composition is shown in Table 2 by weight percentage, and surplus is Fe and other are inevitable
Impurity；It is by thickness7The strand of 70mm is sent into roller hearth soaking furnace, and 1230 DEG C of tapping temperature is vertical by high-pressure water descaler
Milling train roughing is rolled to 1.8mm thin plates, 825 DEG C of finishing temperature, 615 DEG C of coiling temperature using 7 frame tandem mill finishing.Reality is made
Apply the field element steel of example 4.
Embodiment 5：Corresponding embodiment chemical composition is shown in Table 2 by weight percentage, and surplus is Fe and other are inevitable
Impurity；The strand that thickness is 70mm is sent into roller hearth soaking furnace, 1237 DEG C of tapping temperature is vertical by high-pressure water descaler
Milling train roughing is rolled to 1.2mm thin plates, 825 DEG C of finishing temperature, 610 DEG C of coiling temperature using 7 frame tandem mill finishing.Reality is made
Apply the field element steel of example 5.
Embodiment 6：Corresponding embodiment chemical composition is shown in Table 2 by weight percentage, and surplus is Fe and other are inevitable
Impurity；The strand that thickness is 70mm is sent into roller hearth soaking furnace, 1236 DEG C of tapping temperature is vertical by high-pressure water descaler
Milling train roughing is rolled to 1.2mm thin plates, 825 DEG C of finishing temperature, 610 DEG C of coiling temperature using 7 frame tandem mill finishing.Reality is made
Apply the field element steel of example 6.
Comparative example 1：Corresponding embodiment chemical composition is shown in Table 2 by weight percentage, and surplus is Fe and other are inevitable
Impurity；The strand that thickness is 70mm is sent into roller hearth soaking furnace, 1235 DEG C of tapping temperature is vertical by high-pressure water descaler
Milling train roughing is rolled to 1.0mm thin plates, 825 DEG C of finishing temperature, 625 DEG C of coiling temperature using 7 frame tandem mill finishing.It is made pair
The field element steel of ratio 1.
Comparative example 2：Corresponding embodiment chemical composition is shown in Table 2 by weight percentage, and surplus is Fe and other are inevitable
Impurity；The strand that thickness is 70mm is sent into roller hearth soaking furnace, 1230 DEG C of tapping temperature is vertical by high-pressure water descaler
Milling train roughing is rolled to 1.2mm thin plates, 825 DEG C of finishing temperature, 630 DEG C of coiling temperature using 7 frame tandem mill finish rolling.It is made pair
The field element steel of ratio 2.
Comparative example 3：Corresponding embodiment chemical composition is shown in Table 2 by weight percentage, and surplus is Fe and other are inevitable
Impurity；The strand that thickness is 70mm is sent into roller hearth soaking furnace, 1235 DEG C of tapping temperature is vertical by high-pressure water descaler
Milling train roughing is rolled to 1.5mm thin plates, 825 DEG C of finishing temperature, 625 DEG C of coiling temperature using 7 frame tandem mill finishing.It is made pair
The field element steel of ratio 3.
Field element steel made of Examples 1 to 6 and comparative example 1~3 is detected through row, field element is obtained and is produced with steel
Product performance data, is shown in Table 2.
As shown in Table 2, the field element produced through the invention has good magnetic property and mechanical performance with steel, meets
Performance requirement of exchange bavin (vapour) the fry dried food ingredients motor to field element steel at present.
1 embodiment chemical composition (w%) of table
| C | Si | Mn | P | S | Als | N | Nb | Ti | |
| Embodiment 1 | 0.09 | 0.30 | 0.80 | 0.015 | 0.018 | 0.083 | 0.003 | 0.021 | 0.022 |
| Embodiment 2 | 0.07 | 0.26 | 0.89 | 0.011 | 0.024 | 0.062 | 0.004 | 0.024 | 0.019 |
| Embodiment 3 | 0.05 | 0.35 | 0.71 | 0.015 | 0.014 | 0.041 | 0.005 | 0.027 | 0.022 |
| Embodiment 4 | 0.05 | 0.27 | 0.78 | 0.014 | 0.016 | 0.069 | 0.004 | 0.028 | 0.018 |
| Embodiment 5 | 0.06 | 0.29 | 0.98 | 0.012 | 0.024 | 0.077 | 0.003 | 0.025 | 0.024 |
| Embodiment 6 | 0.10 | 0.28 | 0.90 | 0.015 | 0.015 | 0.074 | 0.006 | 0.026 | 0.026 |
| Comparative example 1 | 0.09 | 0.36 | 0.88 | 0.015 | 0.018 | 0.080 | 0.002 | 0.015 | - |
| Comparative example 2 | 0.07 | 0.25 | 0.77 | 0.011 | 0.024 | 0.064 | 0.003 | - | 0.018 |
| Comparative example 3 | 0.05 | 0.15 | 0.73 | 0.015 | 0.014 | 0.043 | 0.004 | - | - |
2 end properties testing result of table
The scientific research personnel of technical field can according to the above-mentioned change for making content and form unsubstantiality without departing from
Institute's essential scope of the present invention, therefore, the present invention is not limited to above-mentioned specific embodiment.
Claims (6)
1. a kind of generator excitation element steel of CSP technique productions, it is characterised in that：Its component and weight percentage are：C
≤ 0.10%, Mn:0.5~1.5%, Si≤0.40%, P≤0.025%, S≤0.025%, Nb≤0.030%, Ti≤
0.030%, Als >=0.015%, N≤0.010%, surplus are Fe and other inevitable impurity.
2. the generator excitation element steel of CSP technique productions according to claim 1, it is characterised in that：Its component and
Weight percentage is：C：0.05~0.10%, Mn：0.70~1.0%, Si≤0.35%, P≤0.015%, S≤
0.024%, Nb≤0.030%, Ti≤0.030%, Als >=0.040%, N≤0.006%, remaining is for Fe and inevitably
Impurity.
3. the manufacturing method of the generator excitation element steel of CSP technique productions according to claim 1, feature exist
In：The method uses CSP short routes, includes following production stage successively：Blast furnace ironmaking → molten iron pretreatment → converter smelting
→ RH application of vacuum → sheet blank continuous casting → soaking pit → de-scaling → finish rolling → section cooling → is batched.
4. the manufacturing method of the generator excitation element steel of CSP technique productions according to claim 3, feature exist
In：The sheet blank continuous casting is cast using whole process protection, and long nozzle uses asbestos bowl protective casting, tundish when big packet is replaced
The mouth of a river is passed through argon gas protective casting；Tundish uses to be wrapped in dry materials, Covering Agent In Basic Mould.
5. the manufacturing method of the generator excitation element steel of CSP technique productions according to claim 3, feature exist
In：At 800~950 DEG C, time inside furnace is more than 15min, is less than 20 with the plate temperature difference after coming out of the stove for the soaking pit charging temperature control
DEG C, tapping temperature is controlled at 1230 ± 20 DEG C.
6. the manufacturing method of the generator excitation element steel of CSP technique productions according to claim 3, feature exist
In：The finish rolling finishing temperature control is at 820 ± 20 DEG C, and oiler temperature control is at 620 ± 20 DEG C.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113930678A (en) * | 2021-09-26 | 2022-01-14 | 包头钢铁（集团）有限责任公司 | Method for producing ultra-low carbon IF steel based on single RH vacuum treatment and CSP thin slab continuous casting and rolling process |
| CN115198187A (en) * | 2022-07-08 | 2022-10-18 | 山西太钢不锈钢股份有限公司 | 400 MPa-level hot-rolled magnetic pole steel and manufacturing method and application thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1785544A (en) * | 2005-12-15 | 2006-06-14 | 广州珠江钢铁有限责任公司 | Technology of eliminating Nb microalloyed steel mixed crystal fexture in thin plate blank continuous casting continuous milling process |
| CN102787273A (en) * | 2012-08-21 | 2012-11-21 | 武汉钢铁(集团)公司 | Sheet-billet produced hot-rolled pickled steel with thickness of 1.8mm or lower for automobile and production method thereof |
| CN103540845A (en) * | 2013-11-07 | 2014-01-29 | 武汉钢铁(集团)公司 | Hot-rolled thin plate enamelled steel with yield strength of 330 MPa and manufacturing method thereof |
| US20140072824A1 (en) * | 2012-09-10 | 2014-03-13 | Siemens Vai Metals Technologies Gmbh | Method for producing microalloyed tubular steel in combined casting-rolling installation and microalloyed tubular steel |
| CN103667906A (en) * | 2013-12-03 | 2014-03-26 | 武汉钢铁(集团)公司 | Hot-rolling high-strength steel sheet having tensile strength of 590 MPa grade and production method thereof |
| CN103667908A (en) * | 2013-12-03 | 2014-03-26 | 武汉钢铁(集团)公司 | Hot-rolled high-strength sheet steel having tensile strength of 540MPa, and production method thereof |
| CN103667907A (en) * | 2013-12-03 | 2014-03-26 | 武汉钢铁(集团)公司 | Hot-rolled high-strength sheet steel having tensile strength of 510MPa, and production method thereof |
| CN103695766A (en) * | 2013-12-03 | 2014-04-02 | 武汉钢铁(集团)公司 | 440MPa-tensile-strength hot-rolled high-strength steel sheet and production method thereof |
-
2018
- 2018-06-25 CN CN201810663393.2A patent/CN108796373B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1785544A (en) * | 2005-12-15 | 2006-06-14 | 广州珠江钢铁有限责任公司 | Technology of eliminating Nb microalloyed steel mixed crystal fexture in thin plate blank continuous casting continuous milling process |
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| US20140072824A1 (en) * | 2012-09-10 | 2014-03-13 | Siemens Vai Metals Technologies Gmbh | Method for producing microalloyed tubular steel in combined casting-rolling installation and microalloyed tubular steel |
| CN103540845A (en) * | 2013-11-07 | 2014-01-29 | 武汉钢铁(集团)公司 | Hot-rolled thin plate enamelled steel with yield strength of 330 MPa and manufacturing method thereof |
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| CN103667908A (en) * | 2013-12-03 | 2014-03-26 | 武汉钢铁(集团)公司 | Hot-rolled high-strength sheet steel having tensile strength of 540MPa, and production method thereof |
| CN103667907A (en) * | 2013-12-03 | 2014-03-26 | 武汉钢铁(集团)公司 | Hot-rolled high-strength sheet steel having tensile strength of 510MPa, and production method thereof |
| CN103695766A (en) * | 2013-12-03 | 2014-04-02 | 武汉钢铁(集团)公司 | 440MPa-tensile-strength hot-rolled high-strength steel sheet and production method thereof |
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| CN113930678A (en) * | 2021-09-26 | 2022-01-14 | 包头钢铁（集团）有限责任公司 | Method for producing ultra-low carbon IF steel based on single RH vacuum treatment and CSP thin slab continuous casting and rolling process |
| CN115198187A (en) * | 2022-07-08 | 2022-10-18 | 山西太钢不锈钢股份有限公司 | 400 MPa-level hot-rolled magnetic pole steel and manufacturing method and application thereof |
| CN115198187B (en) * | 2022-07-08 | 2024-04-26 | 山西太钢不锈钢股份有限公司 | 400 MPa-grade hot-rolled magnetic pole steel and manufacturing method and application thereof |
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