CN103388106A - Non-oriented electrical steel plate with high magnetic induction and low iron loss, and manufacturing method thereof - Google Patents
Non-oriented electrical steel plate with high magnetic induction and low iron loss, and manufacturing method thereof Download PDFInfo
- Publication number
- CN103388106A CN103388106A CN2013102618076A CN201310261807A CN103388106A CN 103388106 A CN103388106 A CN 103388106A CN 2013102618076 A CN2013102618076 A CN 2013102618076A CN 201310261807 A CN201310261807 A CN 201310261807A CN 103388106 A CN103388106 A CN 103388106A
- Authority
- CN
- China
- Prior art keywords
- iron loss
- high magnetic
- magnetic strength
- low iron
- steel sheet
- 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
Abstract
The invention discloses a non-oriented electrical steel plate with high magnetic induction and low iron loss, and a manufacturing method thereof, wherein the weight percentage of the chemical components of the steel plate is as follows: less than or equal to 0.004 % of C, 0.1-1.6% of Si, 0.02-1.0% of Mn, less than or equal to 0.003% of S, 0.1-0.6% of Al, less than or equal to 0.003% of N and less than or equal to 0.0015% of Ti, wherein Si+Al is between 0.2-2.0%, and Mn, Si and Al satisfies the following formula: Mn=K2*Si+K3*Al+a, k2=0.08-0.11, k3=0.17-0.38; a is a constant and the balance is Fe and unavoidable impurities. The non-oriented electrical steel plate with high magnetic induction and low iron loss has 1.70-1.78T of magnetic induction B50 and 3.59-5.5W/kg of iron loss P15/50, has good surface state and is relatively low in manufacture cost without intermediate normalizing or batch annealing, has high magnetic induction, low iron loss and no corrugated defect, and has a magnetic induction B50 0.02T higher and an iron loss P15/50 0.2W/kg lower than those of a normal non-oriented electrical steel plate with same license number.
Description
Technical field
The present invention relates to non-oriented electromagnetic steel sheet and manufacture method thereof; relate in particular to without normalizing or bell furnace process annealing, in apparent good order and condition, low-cost, high magnetic strength, low iron loss non-oriented electromagnetic steel sheet and manufacture method thereof; this non-oriented electromagnetic steel sheet ratio is with the high 0.02T of the conventional non-oriented electromagnetic steel sheet product magnetic strength B50 of the trade mark, and iron loss P15/50 hangs down 0.2W/kg.
Background technology
In recent years, the consumers such as efficient EI iron core, motor, miniature transformer, more and more be subject to people's favor.One of very important reason is, can meet environmental protection, the energy-conservation and needs that effectively reduce the discharging of carbonic acid gas.Meanwhile, along with improving constantly of these consumer over-all propertieies, indirect request is as corresponding raw-material non-oriented electromagnetic steel sheet, to have good magnetic in the guaranteed price advantage, be usually said ultralow iron loss, superelevation magnetic strength, with meet these electricity consumption products to energy-conservation, efficiently in the urgent need to.
Research shows,, in order to obtain good electromagnetic performance, needs chemical composition, the grain-size of improving finished steel plate and the favorable texture of appropriate control steel.Increase silicon, aluminium content in steel; can effectively improve the resistivity of material; and then improve the iron loss of finished steel plate; but the magnetic strength of deteriorated finished steel plate of while; and in normalizing or bell furnace process annealing situation; the finished steel plate surface is easy to produce the corrugated defect, and the outward appearance and the user that affect the finished product use.
Therefore, people often adopt significantly increases silicon in steel, aluminium content,, simultaneously in conjunction with normalizing or bell furnace intermediate annealing process,, effectively to reduce the finished steel plate iron loss, improves the finished steel plate magnetic strength; Utilize induction stirring to improve the slab equiaxial crystal ratio, and obtain finished steel plate in apparent good order and condition.But adopt normalizing or bell furnace process annealing, can significantly increase the manufacturing cost of finished steel plate, extend manufacturing and the delivery cycle of finished steel plate, bring larger difficulty for simultaneously on-the-spot production management, quality control etc.
Affected by this; people begin one's study in the relatively-stationary situation of chemical composition; by adding rare earth, calcium containing alloy etc.; non-metallic inclusion in effective removal or reduction steel; by significantly improving the hot rolling slab tapping temperature, and adopt ultrahigh-temperature finish to gauge technology, to improve the favorable texture in finished steel plate;, in the situation that do not adopt normalizing or bell furnace process annealing, effectively improve the electromagnetic performance of finished steel plate.
Achievement in research in the past mainly contains, and TOHKEMY 2007-102930 patent, by significantly improving the hot rolling slab tapping temperature, generally is about 1230～1320 ℃, and with the grain-size, the crystallographic texture that improve hot-rolled sheet, finished steel plate is in apparent good order and condition, and magnetic strength is very high.But after significantly improving for fear of the slab tapping temperature, in heating of plate blank, the operation of rolling, the abundant solid solution of the non-metallic inclusion such as S, N meeting, disperse educt, and then the iron loss of deterioration finished steel plate, this technology has also adopted interpolation 0.005-0.03% calcium containing alloy or rare earth mode cleaning molten steel, and be strict with S, N content must be less than 0.0015%.This has significantly increased to smelt controls difficulty, and tooling cost is very high, and needs special veneer heating apparatus.
Japanese kokai publication hei 3-113287 patent, for avoiding in heating of plate blank, the operation of rolling, the abundant solid solution of the non-metallic inclusion such as S, N meeting, disperse educt, and then the iron loss of deterioration finished steel plate, adopted hot rolling slab low temperature to come out of the stove, then after roughing finishes, adopt the electromagnetic induction rapid heating, effectively to improve finish rolling temperature in, finishing temperature, this technology has been relaxed the control requirement to impurity elements such as S, N, finished steel plate is in apparent good order and condition, and electromagnetic performance is good.Blemish in an otherwise perfect thing be, adopt this technology very high to the device hardware requirement, production cost increases to some extent, and template to control difficulty larger.
TOHKEMY 2003-57657 patent, by strict control finishing temperature, require 950 ℃ or more than, with grain-size, the crystallographic texture that improves hot-rolled sheet.Simultaneously, need to add Sn, the Cu of 0.08-0.5% of 0.02-0.4%, further improve hot-rolled sheet recrystallize effect.Same shortcoming is, add Sn, Cu and can cause production cost significantly to increase, also need to adopt the means such as high temperature coiling, high-temperature final rolling to assist, need special heating of plate blank, rolling equipment, and impurity element S, N equal size are controlled very strict, all require less than 0.0015%.
The paper report that Hunady and Cernik write, strictly control the silicon equivalent weight in steel, improves hot fine rolling process phase transformation effect, then by the cold rolling mode of depressing greatly, control the favorable texture of finished steel plate, draft is up to 91%, and common cold-rolling mill ability does not reach this design requirements far away.
Summary of the invention
The object of the present invention is to provide a kind of high magnetic strength, low iron loss non-oriented electromagnetic steel sheet and manufacture method thereof; finished steel plate is in apparent good order and condition; manufacturing cost is relatively cheap; and without normalizing or bell furnace process annealing; this has high magnetic strength, low iron loss without oriented electric silicon steel; ratio is with the high 0.02T of the conventional non-oriented electromagnetic steel sheet product magnetic strength B50 of the trade mark, and iron loss P15/50 hangs down 0.2W/kg.
The present invention is by suitable silicon, manganese, the aluminum chemistry Composition Design of adoption rate, control the impurity element titanium content in steel, before RH refining liquid steel decarburization end, alloying, adopt the complete deoxidation of ferrosilicon, and adopt Insulation to control hot fine rolling temperature in etc., realized that high magnetic strength in apparent good order and condition, low iron loss non-oriented electromagnetic steel sheet normally produce.Have and control conveniently, easy and simple to handle, with low cost, be easy to realize, and the characteristics such as purity of steel is high, finished steel plate excellent magnetic.Simultaneously, finished steel plate is in apparent good order and condition, need not process through normalizing or bell furnace process annealing.
In order to achieve the above object, technical scheme of the present invention is as follows:
A kind of high magnetic strength, low iron loss non-oriented electromagnetic steel sheet, the weight percent of its chemical composition is: C :≤0.004%, Si:0.1～1.6%, Mn:0.02～1.0%, S :≤0.003%, Al:0.1～0.6%, N :≤0.003%, Ti :≤0.0015%, and meet Si+A1:0.2～2.0%, Mn, Si, Al meet Mn=k
2* Si+k
3* Al+a, k
2=0.08～0.11, k
3=0.17～0.38, a is constant, a=0～0.7, and all the other are Fe and inevitable impurity.
This high magnetic strength, low iron loss non-oriented electromagnetic steel sheet, in apparent good order and condition, and than the high 0.02T of magnetic strength B50 with the conventional non-oriented electromagnetic steel sheet product of the trade mark, than the low 0.2W/kg of its iron loss P15/50.
High magnetic strength of the present invention, low iron loss, without the manufacture method of oriented electric silicon steel, comprise the steps:
1) smelt, cast:
Smelt, be cast into slab by following chemical composition pre-treatment, converter smelting, RH refining, the chemical component weight percentage composition is: C :≤0.004%, Si:0.1～1.6%, Mn:0.02～1.0%, S≤0.003%, Al:0.1～0.6%, N≤0.003%, Ti≤0.0015%, and meet Si+A1:0.2～2.0%, Mn, Si, Al meet Mn=k
2* Si+k
3* Al+a, k
2=0.08～0.11, k
3=0.17～0.38, a is constant, and all the other are Fe and inevitable impurity.
2) hot rolling:
Slab obtains the normalizing plate after roughing, finish rolling, wherein, the slab tapping temperature is controlled at 1000～1150 ℃, one or more passages of roughing, and adopt the enclosed insulating device between roughing, finishing stand, guarantee finish rolling temperature in 〉=980 ℃.
3) pickling, cold rolling:
The normalizing plate is first carried out pickling, then it is cold rolling to carry out multi-pass, is rolled into the cold-reduced sheet of target thickness, wherein the cold rolling accumulative total draught of multi-pass is 70～81%.
4) annealing, coating:
The cold-reduced sheet that obtains is carried out obtaining described high magnetic strength, low iron loss non-oriented electromagnetic steel sheet after continuous annealing, coating, wherein, first be warmed up to 800～1000 ℃ of insulation 5～60s during continuous annealing, be preferably 10-30s, then the speed of cooling with 3～15 ℃/s slowly cools to 600～750 ℃.
Further, step 1) in, Si, Mn, Al chemical composition design are as follows:
Mn＝k
2×Si+k
3×Al+a，k
2＝0.08～0.11，k
3＝0.17～0.38，a＝0～0.7 (1)
Wherein, the k in formula (1)
2, k
3For Si, Al factor of influence, a is constant.
Further, step 1) in, before RH refining liquid steel decarburization end, alloying, adopting the complete deoxidation of ferrosilicon, the interpolation quantity of ferrosilicon is:
M
FeSi=k
1* [O]
Free/ t steel, k
1=0.1～0.2 (2)
Wherein, [O]
FreeWhile for RH refining decarburization, finishing, the free oxygen content in molten steel, k
1For deoxidation constant, be generally 0.1～0.2 ,/t represents per ton.
After ferrosilicon added, molten steel need to carry out 1～2 or 3 with cocycle.
Further, step 4) in, annealing atmosphere is H
2And N
2Mixed gas, and both volume ratios are (30～70): (70～30), dew point≤-25 ℃.
High magnetic strength in apparent good order and condition of the present invention, low iron loss non-oriented electromagnetic steel sheet, the principle of design of its chemical composition is as follows:
Si：0.1～1.6％。Si can improve matrix resistivity, effectively reduces the iron loss of steel.Si content higher than 1.6% the time, can significantly reduce the magnetic strength of steel; And lower than 0.2% the time, do not have again the effect that significantly reduces iron loss.
Mn：0.02～1.0％。Mn is combined with S and is generated MnS, can effectively reduce the harm to magnetic, improves simultaneously the electrical steel condition of surface, reduces hot-short.Therefore, be necessary to add the Mn content more than 0.02%, and, higher than the Mn content more than 1.0%, easily destroy recrystallization texture, can significantly increase again the manufacturing cost of steel.
Al：0.1～0.6％。Al increases the resistance element, is used for simultaneously the deep deoxidation of electrical steel, and Al content higher than 0.6% the time, can cause the continuous casting difficulty, and magnetic strength significantly reduces; And Al content can significantly reduce the A1N solid solubility temperature lower than 0.1% the time, and causes the magnetic fluctuation of steel.
Si, Mn, Al chemical composition: Si of the present invention, Mn, Al chemical composition relate to and meet formula (1), the basic reason why the present invention limits Mn content is, Mn can enlarge the austenite phase region, makes austenite slack-off to the speed of ferritic transformation, affects the hot rolling stable rolling.In addition, in the situation that Si in steel, Al content are certain, high Mn content also can obviously improve the hot-rolled sheet recrystallization temperature, suppresses the hot-rolled sheet sufficient crystallising.
Below Ti:0.0015%.When Ti content surpasses 0.0015%, the TiN inclusion will be increased greatly, strongly hinder grain growth, worsen the magnetic of steel.
Molten steel through above-mentioned smelting step, at first adopt the RH refining to carry out dark decarburization, molten steel carbon content≤0.004% after decarburization finishes.Then, adopt ferrosilicon to carry out complete deoxidation.For guaranteeing that deoxidation effect is good, after adding ferrosilicon, molten steel need to carry out 1～2 or 3 with cocycle, guarantees that deoxidation products fully floats; Wherein the interpolation quantity of ferrosilicon meets formula (2).
Secondly, the present invention after RH refining decarburization finishes, adopts ferrosilicon to carry out complete deoxidation, rather than strong reductor ferro-aluminum.Because the ferro-aluminum deoxidation products is a bunch shape Al
2O
3, easily be suspended in steel and be difficult for removing, and in follow-up heating of plate blank, operation of rolling fragmentation, size reducing, quantity increases, and suppresses finished steel plate crystal grain-growth in heat treatment process.Due to [O]
FreeUsually be controlled at 200～600ppm, good for guaranteeing deoxidation effect, need to add ferrosilicon quantity according to formula (2).Because the ferrosilicon deoxidation products is only SiO
2, the large and globulate of particle, remove than being easier to floating.After adding ferrosilicon, molten steel need to carry out 1～2 or with cocycle, guarantees that deoxidation products fully floats.
Again, the present invention guarantees that by low-cost manufacture method surface quality is good without being orientated steel plate without the corrugated defect.Existing ordinary method is steel plate to be carried out the method for normalizing or cover annealing; but can greatly increase manufacturing cost; and the present invention controls the corrugated defect mainly by optimizing the method for hot rolling technology, therefore in acquisition excellent surface quality, has realized simultaneously low cost.Concrete hot rolling technology is as follows:
After the continuous casting casting finished, slab shove charge successively heated, heats up, after hot rolling slab reheats, the slab tapping temperature need not high temperature, be controlled at 1000～1150 ℃ and get final product, so both can adopt R1, above passage of R2 two frame roughing, broken larger-size column crystal.Intermediate slab between roughing, finishing stand, adopts the enclosed insulating cover to be incubated, to guarantee finish rolling temperature in 〉=980 ℃.Like this, the inner crystal grain of intermediate slab can effectively be grown up, thereby both can effectively improve the texture of finished steel plate, can also eliminate plate face corrugated defect.
Description of drawings
Fig. 1 is the impact of Ti content of the present invention on the finished steel plate magnetic strength;
Fig. 2 is the impact of RH refinement and deoxidation mode of the present invention on nonmetallic inclusionsin steel;
Fig. 3 is the impact of hot fine rolling temperature in of the present invention on production board face quality.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is described in further detail.
The embodiment that the high magnetic strength of the present invention, low iron loss non-oriented electromagnetic steel sheet are made is as follows:
Molten iron, steel scrap, according to the proportioning of the chemical composition shown in table 1, after 300 tons of converter smeltings, adopt floating plug, moving slide board to carry out pushing off the slag.Then, adopt the RH refining to carry out decarburization, deoxidation, alloying, RH refining decarburization is carried out complete deoxidation after finishing, and adjusts Si, Mn, Al content in steel.Molten steel after the continuous casting casting, obtains the strand that 170mm～250mm is thick, 800mm～1400mm is wide.Strand through above-mentioned smelting technology, successively through hot rolling, pickling, cold rolling and annealing process, wherein during hot rolling, the slab tapping temperature is controlled at 1000～1150 ℃, one or more passages of roughing, and adopt the enclosed insulating device between roughing, finishing stand, guarantee finish rolling temperature in 〉=980 ℃; When cold rolling, the cold rolling accumulative total draught of multi-pass is 70～80%; First be warmed up to 800～1000 ℃ of insulation 5～60s during continuous annealing, then the speed of cooling with 3～15 ℃/s slowly cools to 600～750 ℃, finally obtain high magnetic strength, low iron loss non-oriented electromagnetic steel sheet product, its main technologic parameters is as shown in table 2, and its electromagnetic performance is as shown in table 3.
Table 1 unit: weight percent
| Si | Mn | Al | Ti | C | S | N | Fe/ | |
| Embodiment | ||||||||
| 1 | 0.27 | 0.18 | 0.27 | 0.0007 | 12 | 29 | 12 | All the other |
| Embodiment 2 | 0.30 | 0.24 | 0.29 | 0.0005 | 16 | 30 | 14 | All the other |
| Embodiment 3 | 0.26 | 0.32 | 0.29 | 0.0013 | 14 | 31 | 13 | All the other |
| Embodiment 4 | 0.28 | 0.28 | 0.28 | 0.0009 | 13 | 32 | 15 | All the |
| Embodiment | ||||||||
| 5 | 1.27 | 0.19 | 0.28 | 0.0009 | 14 | 31 | 14 | All the other |
| Embodiment 6 | 1.26 | 0.23 | 0.32 | 0.0012 | 12 | 33 | 10 | All the other |
| Embodiment 7 | 1.32 | 0.26 | 0.29 | 0.0004 | 13 | 32 | 11 | All the other |
| Embodiment 8 | 1.31 | 0.22 | 0.24 | 0.0006 | 14 | 29 | 12 | All the other |
| Embodiment 9 | 1.32 | 0.58 | 0.26 | 0.0007 | 12 | 30 | 13 | All the |
| Embodiment | ||||||||
| 10 | 1.44 | 0.62 | 0.38 | 0.0006 | 11 | 31 | 12 | All the other |
| Comparative Examples 1 | 0.27 | 0.36 | 0.28 | 0.0028 | 0.0013 | 30 | 13 | All the other |
| Comparative Examples 2 | 0.26 | 0.34 | 0.29 | 0.0007 | 0.0015 | 28 | 12 | All the other |
| Comparative Examples 3 | 0.27 | 0.28 | 0.32 | 0.0009 | 0.0012 | 33 | 12 | All the other |
| Comparative Examples 4 | 1.25 | 0.27 | 0.26 | 0.0008 | 15 | 33 | 13 | All the other |
| Comparative Examples 5 | 1.28 | 0.62 | 0.30 | 0.0006 | 14 | 31 | 14 | All the other |
| Comparative Examples 6 | 1.26 | 0.19 | 0.28 | 0.0021 | 17 | 32 | 11 | All the other |
| Comparative Examples 7 | 1.44 | 0.48 | 0.58 | 0.0009 | 13 | 29 | 12 | All the other |
| Comparative Examples 8 | 1.38 | 0.92 | 0.32 | 0.0014 | 12 | 34 | 14 | All the other |
| Comparative Examples 9 | 1.37 | 0.22 | 0.29 | 0.0018 | 14 | 33 | 13 | All the other |
| Comparative Examples 10 | 1.38 | 0.24 | 0.28 | 0.0008 | 16 | 28 | 12 | All the other |
| Comparative Examples 11 | 1.40 | 0.22 | 0.27 | 0.0024 | 15 | 29 | 11 | All the other |
Table 2
Table 3
The present invention strictly controls the Ti content in molten steel, can effectively avoid in the finished steel plate annealing process, the strongly inhibited effect of the inclusiones such as TiN to crystal grain-growth, thereby can significantly improve the magnetic strength of finished steel plate, the impact of Ti content as shown in Figure 1 on the finished steel plate magnetic strength, as can be known: the finished product magnetic induction performance raises along with the reduction of Ti content.
The impact of RH refinement and deoxidation mode as shown in Figure 2 on nonmetallic inclusionsin steel, as can be known: adopt the ferrosilicon deoxidation, the amount of inclusions in steel will be less than the deoxidation of employing ferro-aluminum.
The impact of hot fine rolling temperature in as shown in Figure 3 on production board face quality, as can be known: along with the raising of finish rolling temperature in, the incidence of corrugated defect obviously reduces.
As shown in Table 3,1-11 compares with Comparative Examples, the non-oriented electromagnetic steel sheet product that the present invention obtains, and it is in apparent good order and condition, and than the high 0.02T of magnetic strength B50 with the conventional non-oriented electromagnetic steel sheet product of the trade mark, than the low 0.2W/kg of its iron loss P15/50.
Claims (5)
1. a high magnetic strength, low iron loss non-oriented electromagnetic steel sheet, the weight percent of its chemical composition is: C :≤0.004%, Si:0.1～1.6%, Mn:0.02～1.0%, S :≤0.003%, Al:0.1～0.6%, N :≤0.003%, Ti :≤0.0015%, and meet Si+Al:0.2～2.0%, Mn, Si, Al meet Mn=k
2* Si+k
3* Al+a, k
2=0.08～0.11, k
3=0.17～0.38, a is constant, a=0～0.7, and all the other are Fe and inevitable impurity.
2. high magnetic strength as claimed in claim 1, low iron loss non-oriented electromagnetic steel sheet, is characterized in that, the magnetic strength B50 of described high magnetic strength, low iron loss non-oriented electromagnetic steel sheet is 1.70-1.78T, and iron loss P15/50 is 3.59-5.5W/kg.
3. the manufacture method of high magnetic strength as claimed in claim 1 or 2, low iron loss non-oriented electromagnetic steel sheet, comprise the steps:
1) smelt, cast:
Smelt, be cast into slab by following chemical composition pre-treatment, converter smelting, RH refining, the chemical component weight percentage composition is: C :≤0.004%, Si:0.1～1.6%, Mn:0.02～1.0%, S≤0.003%, Al:0.1～0.6%, N≤0.003%, Ti≤0.0015%, and meet Si+Al:0.2～2.0%, Mn, Si and Al meet Mn=k
2* Si+k
3* Al+a, k
2=0.08～0.11, k
3=0.17～0.38, a is constant, a=0～0.7, and all the other are Fe and inevitable impurity;
2) hot rolling:
Slab obtains the normalizing plate after roughing, finish rolling, wherein, the slab tapping temperature is controlled at 1000～1150 ℃, one or more passages of roughing, and adopt the enclosed insulating device between roughing, finishing stand, guarantee finish rolling temperature in 〉=980 ℃;
3) pickling, cold rolling:
The normalizing plate is first carried out pickling, then it is cold rolling to carry out multi-pass, is rolled into the cold-reduced sheet of target thickness, wherein the cold rolling accumulative total draught of multi-pass is 70～81%;
4) annealing, coating:
The cold-reduced sheet that obtains is carried out obtaining described high magnetic strength, low iron loss non-oriented electromagnetic steel sheet after continuous annealing, coating, wherein, first be warmed up to 800～1000 ℃ of insulation 5～60s during continuous annealing, then the speed of cooling with 3～15 ℃/s slowly cools to 600～750 ℃.
4. the manufacture method of high magnetic strength as claimed in claim 3, low iron loss non-oriented electromagnetic steel sheet, it is characterized in that, step 1) in, before RH refining liquid steel decarburization end, alloying, adopt the complete deoxidation of ferrosilicon, the interpolation quantity of ferrosilicon meets formula (2), and after ferrosilicon adds, and molten steel need to carry out 1～2 or 3 with cocycle;
M
FeSi=k
1* [O]
Free/ t steel, k
1=0.1～0.2 (2)
Wherein, [O]
FreeFree oxygen content while for RH refining decarburization, finishing in molten steel, k
1For deoxidation constant ,/t represents per ton.
5. the manufacture method of high magnetic strength as claimed in claim 3, low iron loss non-oriented electromagnetic steel sheet, is characterized in that step 4) in, annealing atmosphere is H
2And N
2Mixed gas, and both volume ratios are (30～70): (70～30), dew point≤-25 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102618076A CN103388106A (en) | 2013-06-27 | 2013-06-27 | Non-oriented electrical steel plate with high magnetic induction and low iron loss, and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102618076A CN103388106A (en) | 2013-06-27 | 2013-06-27 | Non-oriented electrical steel plate with high magnetic induction and low iron loss, and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103388106A true CN103388106A (en) | 2013-11-13 |
Family
ID=49532526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102618076A Pending CN103388106A (en) | 2013-06-27 | 2013-06-27 | Non-oriented electrical steel plate with high magnetic induction and low iron loss, and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103388106A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103757196A (en) * | 2014-01-09 | 2014-04-30 | 鞍钢股份有限公司 | Annealing method of high grade electrical steel |
| CN104789862A (en) * | 2015-03-20 | 2015-07-22 | 宝山钢铁股份有限公司 | High-magnetic-induction low-iron-loss non-oriented electrical steel plate with good surface state and manufacturing method thereof |
| CN104878288A (en) * | 2015-05-22 | 2015-09-02 | 本钢板材股份有限公司 | Method for controlling silicon steel corrugated defects |
| CN105734393A (en) * | 2016-04-15 | 2016-07-06 | 唐山钢铁集团有限责任公司 | Production method for non-oriented electrical steel |
| CN106119496A (en) * | 2016-08-08 | 2016-11-16 | 浙江华赢特钢科技有限公司 | A kind of production technology of modified model non-oriented silicon steel with high magnetic induction sheet |
| CN106480283A (en) * | 2015-08-24 | 2017-03-08 | 鞍钢股份有限公司 | A kind of production method of high-silicon high aluminium non-oriented electrical steel strip |
| CN107794439A (en) * | 2016-08-30 | 2018-03-13 | 宝山钢铁股份有限公司 | Extra-low iron loss non-oriented electromagnetic steel sheet and its manufacture method |
| CN110643891A (en) * | 2018-06-26 | 2020-01-03 | 宝山钢铁股份有限公司 | Non-oriented electrical steel plate with excellent magnetic property and manufacturing method thereof |
| CN110777232A (en) * | 2018-07-30 | 2020-02-11 | 宝山钢铁股份有限公司 | Non-oriented electrical steel plate with excellent magnetic property and manufacturing method thereof |
| JP2020033640A (en) * | 2018-08-23 | 2020-03-05 | Ｊｆｅスチール株式会社 | Production method of non-oriented electromagnetic steel sheet |
| CN112030059A (en) * | 2020-08-31 | 2020-12-04 | 武汉钢铁有限公司 | Short-process production method of non-oriented silicon steel |
| CN114015931A (en) * | 2021-10-12 | 2022-02-08 | 邯郸钢铁集团有限责任公司 | Non-oriented electrical steel with excellent iron loss and magnetic property and production method thereof |
| RU2775241C1 (en) * | 2021-11-23 | 2022-06-28 | Публичное Акционерное Общество "Новолипецкий металлургический комбинат" | Method for the production of electrical isotropic steel |
| CN115380131A (en) * | 2020-04-16 | 2022-11-22 | 日本制铁株式会社 | Non-oriented electromagnetic steel sheet and method for producing same |
| CN117127110A (en) * | 2023-10-27 | 2023-11-28 | 江苏省沙钢钢铁研究院有限公司 | High-grade non-oriented silicon steel with excellent surface and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101084322A (en) * | 2004-12-21 | 2007-12-05 | 株式会社Posco | Non-oriented electrical steel sheets with excellent magnetic properties and method for manufacturing the same |
| CN101346484A (en) * | 2005-12-27 | 2009-01-14 | Posco株式会社 | Non-oriented electrical steel sheets with improved magnetic property and method for manufacturing the same |
| CN102453837A (en) * | 2010-10-25 | 2012-05-16 | 宝山钢铁股份有限公司 | Method for preparing non-oriented silicon steel with high magnetic induction |
| KR20120074032A (en) * | 2010-12-27 | 2012-07-05 | 주식회사 포스코 | Method for manufacturing non-oriented electrical steel sheets having excellent magnetic properties and high permeability and non-oriented electrical steel sheets thereof |
-
2013
- 2013-06-27 CN CN2013102618076A patent/CN103388106A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101084322A (en) * | 2004-12-21 | 2007-12-05 | 株式会社Posco | Non-oriented electrical steel sheets with excellent magnetic properties and method for manufacturing the same |
| CN101346484A (en) * | 2005-12-27 | 2009-01-14 | Posco株式会社 | Non-oriented electrical steel sheets with improved magnetic property and method for manufacturing the same |
| CN102453837A (en) * | 2010-10-25 | 2012-05-16 | 宝山钢铁股份有限公司 | Method for preparing non-oriented silicon steel with high magnetic induction |
| KR20120074032A (en) * | 2010-12-27 | 2012-07-05 | 주식회사 포스코 | Method for manufacturing non-oriented electrical steel sheets having excellent magnetic properties and high permeability and non-oriented electrical steel sheets thereof |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103757196B (en) * | 2014-01-09 | 2016-09-07 | 鞍钢股份有限公司 | A kind of method for annealing of high grade electric steel |
| CN103757196A (en) * | 2014-01-09 | 2014-04-30 | 鞍钢股份有限公司 | Annealing method of high grade electrical steel |
| EP3272898A4 (en) * | 2015-03-20 | 2018-11-14 | Baoshan Iron & Steel Co., Ltd. | High magnetic induction and low iron loss non-oriented electrical steel sheet with good surface state and manufacturing method therefor |
| CN104789862A (en) * | 2015-03-20 | 2015-07-22 | 宝山钢铁股份有限公司 | High-magnetic-induction low-iron-loss non-oriented electrical steel plate with good surface state and manufacturing method thereof |
| US10844451B2 (en) | 2015-03-20 | 2020-11-24 | Baoshan Iron & Steel Co., Ltd. | High magnetic induction and low iron loss non-oriented electrical steel sheet with good surface state and manufacturing method therefor |
| WO2016150195A1 (en) * | 2015-03-20 | 2016-09-29 | 宝山钢铁股份有限公司 | High magnetic induction and low iron loss non-oriented electrical steel sheet with good surface state and manufacturing method therefor |
| RU2710147C2 (en) * | 2015-03-20 | 2019-12-24 | Баошан Айрон Энд Стил Ко., Лтд. | METHOD FOR PRODUCTION OF NON-TEXTURED ELECTRICAL STEEL SHEET WITH MAGNETIC INDUCTION OF ≥ 1,7 T, IRON LOSSES ≤ 5,61 W/kg AND SURFACE WITHOUT WAVINESS DEFECTS |
| JP2018517051A (en) * | 2015-03-20 | 2018-06-28 | 宝山鋼鉄股▲分▼有限公司 | High magnetic flux density / low iron loss / non-oriented electrical steel sheet with good surface condition and manufacturing method thereof |
| CN104878288A (en) * | 2015-05-22 | 2015-09-02 | 本钢板材股份有限公司 | Method for controlling silicon steel corrugated defects |
| CN106480283A (en) * | 2015-08-24 | 2017-03-08 | 鞍钢股份有限公司 | A kind of production method of high-silicon high aluminium non-oriented electrical steel strip |
| CN105734393A (en) * | 2016-04-15 | 2016-07-06 | 唐山钢铁集团有限责任公司 | Production method for non-oriented electrical steel |
| CN106119496A (en) * | 2016-08-08 | 2016-11-16 | 浙江华赢特钢科技有限公司 | A kind of production technology of modified model non-oriented silicon steel with high magnetic induction sheet |
| CN107794439A (en) * | 2016-08-30 | 2018-03-13 | 宝山钢铁股份有限公司 | Extra-low iron loss non-oriented electromagnetic steel sheet and its manufacture method |
| CN110643891A (en) * | 2018-06-26 | 2020-01-03 | 宝山钢铁股份有限公司 | Non-oriented electrical steel plate with excellent magnetic property and manufacturing method thereof |
| CN110643891B (en) * | 2018-06-26 | 2021-03-12 | 宝山钢铁股份有限公司 | Non-oriented electrical steel plate with excellent magnetic property and manufacturing method thereof |
| CN110777232A (en) * | 2018-07-30 | 2020-02-11 | 宝山钢铁股份有限公司 | Non-oriented electrical steel plate with excellent magnetic property and manufacturing method thereof |
| CN110777232B (en) * | 2018-07-30 | 2021-10-22 | 宝山钢铁股份有限公司 | Non-oriented electrical steel plate with excellent magnetic property and manufacturing method thereof |
| JP2020033640A (en) * | 2018-08-23 | 2020-03-05 | Ｊｆｅスチール株式会社 | Production method of non-oriented electromagnetic steel sheet |
| CN115380131A (en) * | 2020-04-16 | 2022-11-22 | 日本制铁株式会社 | Non-oriented electromagnetic steel sheet and method for producing same |
| CN112030059A (en) * | 2020-08-31 | 2020-12-04 | 武汉钢铁有限公司 | Short-process production method of non-oriented silicon steel |
| CN112030059B (en) * | 2020-08-31 | 2021-08-03 | 武汉钢铁有限公司 | Short-process production method of non-oriented silicon steel |
| CN114015931A (en) * | 2021-10-12 | 2022-02-08 | 邯郸钢铁集团有限责任公司 | Non-oriented electrical steel with excellent iron loss and magnetic property and production method thereof |
| CN114015931B (en) * | 2021-10-12 | 2022-09-06 | 邯郸钢铁集团有限责任公司 | Non-oriented electrical steel with excellent iron loss and magnetic property and production method thereof |
| RU2775241C1 (en) * | 2021-11-23 | 2022-06-28 | Публичное Акционерное Общество "Новолипецкий металлургический комбинат" | Method for the production of electrical isotropic steel |
| CN117127110A (en) * | 2023-10-27 | 2023-11-28 | 江苏省沙钢钢铁研究院有限公司 | High-grade non-oriented silicon steel with excellent surface and preparation method thereof |
| CN117127110B (en) * | 2023-10-27 | 2024-02-02 | 江苏省沙钢钢铁研究院有限公司 | High-grade non-oriented silicon steel with excellent surface and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103388106A (en) | Non-oriented electrical steel plate with high magnetic induction and low iron loss, and manufacturing method thereof | |
| CN101139681B (en) | High grade cold rolling non-oriented silicon steel and method for manufacturing same | |
| JP6580700B2 (en) | High magnetic flux density / low iron loss / non-oriented electrical steel sheet with good surface condition and manufacturing method thereof | |
| CN102041367B (en) | Manufacturing method of thin strip continuously cast and cold rolled non-oriented electrical steel | |
| CN104141092B (en) | A kind of three-dimensional reel iron core transformer non-oriented electrical steel and production method thereof | |
| CN110218945B (en) | Non-oriented electrical steel without corrugated defects and preparation method thereof | |
| CN102181805B (en) | Steel plate and method thereof used for producing water heater linear enamel by flexible thin slab rolling line | |
| CN103667879B (en) | The non-oriented electrical steel that magnetic property and mechanical performance are good and production method | |
| CN104294155B (en) | A kind of Ultra-low carbon orientation silicon steel and preparation method thereof | |
| CN102925793B (en) | Non-oriented electrical steel with magnetic induction greater than or equal to 1.8 T and production method thereof | |
| CN104404396B (en) | High-magnetic-strength no-orientation silicon steel free from normalizing and production method of sheet billets | |
| CN100557060C (en) | The manufacture method of C-Mn-Ti series hot-rolled high strength high magnetic induction performance steel | |
| CN103834858A (en) | Method for manufacturing low-iron-loss non-oriented silicon steel | |
| CN103805918B (en) | A kind of high magnetic induction grain-oriented silicon steel and production method thereof | |
| CN102126110B (en) | Method for manufacturing high-silicon steel thin strip | |
| CN104480386A (en) | 0.2mm-thick non-oriented silicon steel for high-speed motor and production method of 0.2mm-thick non-oriented silicon steel | |
| CN101992210A (en) | Method for producing aluminum-free steel grade of cold milling non-oriented silicon steel | |
| JP2021502489A (en) | Non-oriented electrical steel sheet with excellent magnetic properties and its manufacturing method | |
| CN104046760A (en) | Production method of electrical steel plate | |
| CN105256226A (en) | Cold-rolled non-oriented silicon steel low in iron loss and production method | |
| CN104726670B (en) | A kind of method that short route medium thin slab prepares high magnetic induction grain-oriented silicon steel | |
| CN101892419B (en) | Method for producing low-carbon low-silicon high magnetic induction non-oriented electrical steel plate by CSP process | |
| CN103510005B (en) | The manufacture method of grade cold rolling non-oriented electrical steel in a kind of | |
| CN101956127B (en) | Manufacturing method of Sn contained non-oriented electrical steel and plate coil | |
| CN101463448A (en) | High magnetic strength non-oriented electrical steel and production method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131113 |