CN102292462A - Non-oriented electromagnetic steel sheet - Google Patents
Non-oriented electromagnetic steel sheet Download PDFInfo
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- CN102292462A CN102292462A CN2010800053348A CN201080005334A CN102292462A CN 102292462 A CN102292462 A CN 102292462A CN 2010800053348 A CN2010800053348 A CN 2010800053348A CN 201080005334 A CN201080005334 A CN 201080005334A CN 102292462 A CN102292462 A CN 102292462A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 71
- 239000010959 steel Substances 0.000 title claims abstract description 71
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 7
- 150000002910 rare earth metals Chemical class 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 85
- 229910052742 iron Inorganic materials 0.000 description 40
- 230000000694 effects Effects 0.000 description 19
- 238000005097 cold rolling Methods 0.000 description 11
- 238000000137 annealing Methods 0.000 description 10
- 239000000203 mixture Substances 0.000 description 8
- 238000005728 strengthening Methods 0.000 description 8
- 239000010960 cold rolled steel Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005098 hot rolling Methods 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 239000006104 solid solution Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
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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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
-
- 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
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
-
- 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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- 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
-
- 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/16—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Power Engineering (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Disclosed is a non-oriented electromagnetic steel sheet comprising 0.003 to 0.05% by mass inclusive of C, 0.001 to 0.01% by mass inclusive of N, and 2.8 to 3.5% by mass inclusive of Si. The non-oriented electromagnetic steel sheet additionally comprises at least one component selected from a group consisting of Ni in an amount of 4.0% by mass or less and Mn in an amount of 2.0% by mass or less in the total amount of 0.5% by mass or more, and has an RTi value represented by formula: [Ti]/4([C]+[N]) [wherein [Ti] represents the content (% by mass) of Ti, [C] represents the content (% by mass) of C and [N] represents the content (% by mass) of N] of 1 to 10 inclusive. The non-oriented electromagnetic steel sheet contains Al in an amount of 3.0% by mass or less and P in an amount of 0.2% by mass or less.
Description
Technical field
The present invention relates to a kind of non-oriented electromagnetic steel sheet having of rotor of suitable quick peeler.
Background technology
Non-oriented electromagnetic steel sheet having for example is used for the rotor of whirler etc.In general, the centrifugal force that acts on rotor is directly proportional with rotation radius, and with square being directly proportional of speed of rotation.Therefore, to the very large stress of rotor effect of quick peeler.Therefore, the tensile strength height of the non-oriented electromagnetic steel sheet having used of preferred rotor.That is to say that the non-oriented electromagnetic steel sheet having that preferred rotor is used possesses high strength.Like this, for the non-oriented electromagnetic steel sheet having that rotor is used, demanding tensile strength (high strength).
On the other hand, be not limited to the rotor of whirler, for the employed non-oriented electromagnetic steel sheet having of iron core, iron loss is low to be important.Especially, the non-oriented electromagnetic steel sheet having for the rotor of quick peeler is used importantly has low high frequency iron loss.Like this, the non-oriented electromagnetic steel sheet having for rotor is used also requires low high frequency iron loss.That is to say that the efficient when requiring with high frequency use whirler wants high.
But high strength and low high frequency iron loss have opposite relation on physics, and they are taken into account is very difficult.
Though proposed to seek technology that they are taken into account, also do not had the technology that to make easily so far.For example, proposed to obtain earlier the higher hot-rolled steel sheet of Si content, carried out the technology of all temps control then, but made cold rolling very difficult because of Si content is higher.In addition, carry out all temps control in order to carry out cold rolling, but very special because of this temperature control, so required time, labor force and cost are very big.
The prior art document
Patent documentation
Patent documentation 1: Japanese kokai publication sho 60-238421 communique
Patent documentation 2: Japanese kokai publication sho 61-9520 communique
Patent documentation 3: Japanese kokai publication sho 62-256917 communique
Patent documentation 4: Japanese kokai publication hei 2-8346 communique
Patent documentation 5: TOHKEMY 2007-186791 communique
Patent documentation 6: TOHKEMY 2007-186790 communique
Patent documentation 7: TOHKEMY 2008-240104 communique
Summary of the invention
Invent problem to be solved
The objective of the invention is to, a kind of can make easily, non-oriented electromagnetic steel sheet having that can access high tensile strength and low high frequency iron loss is provided.
Be used to solve the means of problem
The inventor is suppressed at the angle that lower level obtains the favorable mechanical characteristic simultaneously from the reinforcement of strengthening, utilize phase-change organization by solution strengthening, precipitation strength, work strengthening, grain refined etc. with iron loss and considers, has carried out research with great concentration with regard to non-oriented electromagnetic steel sheet having.Moreover, the inventor just in the quick peeler of reality important high frequency iron loss be what kind of index, the iron loss that in other words importantly reduces which kind of frequency has been carried out investigation repeatedly and has been analyzed.In addition, also pay attention to simplify complicated that the processing such as cold rolling in the manufacturing processed and avoiding handles.
This result's details aftermentioned, discovery is defined in proper range by the content with Si, Mn and Ni etc., and the proportional divider with respect to the total content of C and N of Ti content fixed on suitable scope, for example can access the above high tensile strength of 900MPa, simultaneously high frequency iron loss is suppressed at lower level.Also find in addition: as high frequency iron loss, importantly magneticflux-density is 1.0T, the iron loss W when excitation frequency is 1000Hz
10/1000Lower.And the non-oriented electromagnetic steel sheet having below having expected.
The present invention relates to a kind of non-oriented electromagnetic steel sheet having, it is characterized in that: contain C:0.003 quality %～0.05 quality %, N:0.001 quality %～0.01 quality % and Si:2.8 quality %～3.5 quality %; And then contain below the Ni:4.0 quality % and among below the Mn:2.0 quality % at least a kind of being selected from more than the 0.5 quality % in total amount; And contain Ti: Ti content is being defined as [Ti] quality %, C content is defined as [C] quality %, when N content is defined as [N] quality %, uses the value R of [Ti]/4 ([C]+[N]) expression
TiBe 1～10; Al content is below the 3.0 quality %; P content is below the 0.2 quality %; Remainder comprises Fe and unavoidable impurities.
The effect of invention
According to the present invention, the content of Si, Mn and Ni etc. and value R
TiSuitably, therefore can access high tensile strength and low high frequency iron loss.In addition, because the content of Si etc. is suitable, thereby makes that the processing in the manufacturing processed is easy, can also avoid appending processing based on the complexity of embrittlement etc.
Embodiment
Below, the present invention is described in detail.At first, the composition to non-oriented electromagnetic steel sheet having of the present invention describes.
The resistance that Si has by making non-oriented electromagnetic steel sheet having increases, and reduces the effect that eddy-current loss reduces iron loss such as high frequency iron loss.In addition, Si also has the effect that improves the intensity of non-oriented electromagnetic steel sheet having by solution strengthening.If Si content is lower than 2.8 quality %, then these effects and insufficient.On the other hand, if Si content surpasses 3.5 quality %, then cause the reduction, embrittlement of magneticflux-density, the difficultyization of handling such as cold rolling and the rising of material cost.Therefore, Si content is defined as 2.8 quality %～3.5 quality %.
Al and Si are same, and the resistance that has by making non-oriented electromagnetic steel sheet having increases, and reduces eddy-current loss, thereby reduce the effect of iron loss such as high frequency iron loss.Therefore, also can contain for further reducing high frequency iron loss.But,, then cause the reduction, embrittlement of magneticflux-density, the difficultyization of handling such as cold rolling and the rising of material cost if Al content surpasses 3.0 quality %.Therefore, the upper limit with Al content is defined as 3.0 quality %.In addition, if Al content is lower than 0.1 quality %, fine remarkableization of separating out of AlN then, iron loss increases, and therefore, Al content is preferably more than the 0.1 quality %.
Ni and Mn help to improve the intensity of non-oriented electromagnetic steel sheet having.That is to say that Ni has the effect that improves intensity by solution strengthening, Mn has the effect of strengthening raising intensity by solution strengthening and grain refined.In addition, Ni also has by increasing the resistance of non-oriented electromagnetic steel sheet having, reduces eddy-current loss, thereby reduces the effect of iron loss such as high frequency iron loss.Moreover Ni also helps the raising of the magneticflux-density that accompanies with the increase of the saturation magnetic moment of non-oriented electromagnetic steel sheet having.Mn has by increasing the resistance of non-oriented electromagnetic steel sheet having, reduces eddy-current loss, thereby reduces the effect of iron loss such as high frequency iron loss.If the total amount of Ni content and Mn content is lower than 0.5 quality %, then these effects and insufficient can not obtain the above tensile strength of 900MPa.On the other hand, if Ni content surpasses 4.0 quality %, then produce and result from the reduction of magneticflux-density of reduction of saturation magnetic moment.In addition, if Mn content surpasses 2.0 quality %, then magneticflux-density reduces, and material cost rises.Therefore, stipulate that Ni and/or the following Mn of 2.0 quality % that 4.0 quality % are following contain more than the 0.5 quality % in total amount.
P has the effect of the intensity that improves non-oriented electromagnetic steel sheet having greatly.Therefore, also can contain for further improving intensity.In order to play this effect, preferably contain the above P of 0.001 quality %.But, if P content surpasses 0.2 quality %, then because of P in the manufacturing processed makes the hot-rolled steel sheet embrittlement to grain boundary segregation, cold rolling very difficulty thereafter.Therefore, the upper limit with P content is defined as 0.2 quality %.
Ti has with C and N reaction and generates the fine precipitate that contains the Ti carbonitride, thereby strengthens the effect of the intensity of raising non-oriented electromagnetic steel sheet having by precipitation strength and grain refined.In addition, the Ti of solid solution also has the crystal orientation on the surface that makes non-oriented electromagnetic steel sheet having when cold rolling and final annealing etc. with { 111} is consistent, thereby improves the effect of the intensity of non-oriented electromagnetic steel sheet having in the non-oriented electromagnetic steel sheet having.In order to give full play to these effects, importantly the Ti that separates out as the Ti carbonitride and in non-oriented electromagnetic steel sheet having the Ti both sides of solid solution contain suitable amount.
Ti content is defined as [Ti] quality %, with C content be defined as [C] quality %, when N content is defined as [N] quality %, if with [Ti]/4 ([C]+[N]) expression value R
TiBe lower than 1, then can not give full play to above-mentioned effect.Therefore, will be worth R
TiBe defined as more than 1.At value R
TiBe 1 o'clock, Ti all combines with C and/or N in theory, but which 1 all debond among the part of Ti and C and the N in the reality, but be contained in the non-oriented electromagnetic steel sheet having as solid solution Ti.In addition, preferred value R
TiBe more than 2, more preferably more than 3.
On the other hand, if value R
TiSurpass 10, then be difficult to produce recrystallize, and embrittlement easily.In addition, along with the increase of solid solution Ti, to { orientational strengthening of 111} also makes iron loss rise sometimes.Therefore, will be worth R
TiBe defined as below 10.In addition, value R
TiBe preferably below 9, more preferably below 7.
In addition, for the value of making R
TiIn above-mentioned scope, C content is defined as 0.003 quality %～0.05%, N content is defined as 0.001%～0.01%.In addition, C content surpass 0.05% or N content surpass at 0.01% o'clock, iron loss characteristic significantly reduces by magnetic aging etc.
In addition, for the value of making R
TiIn above-mentioned scope, Ti content is preferably 0.1%～0.3%, and the upper limit of Ti content is 0.25 quality % more preferably.
In addition, the metallic element as form carbonitride in non-oriented electromagnetic steel sheet having except that Ti, also can list Zr, V, Nb and Mo.Wherein, the precipitation strength of Ti carbonitride is remarkable.
Beyond the mentioned component of non-oriented electromagnetic steel sheet having, for example be Fe and unavoidable impurities.In addition, the embrittlement that is accompanied by the crystal boundary of high strength for avoidance also can contain B.In the case, B content is preferably more than the 0.001 quality %.On the other hand, if B content surpasses 0.007 quality %, the embrittlement when then causing the reduction of magneticflux-density and hot rolling etc.Therefore, B content is preferably below the 0.007 quality %.
Moreover, for further improving various magnetic propertiess, also can contain Cu:0.02%～1.0%, Sn:0.02%～0.5%, Sb:0.02%～0.5%, Cr:0.02%～3.0% and/or rare earth metal (REM:rare earth metal): 0.001%～0.01%.That is to say, also can contain the element more than a kind that is selected among these multiple elements.
And the tensile strength of the non-oriented electromagnetic steel sheet having that is made of these compositions is for example for more than the 900MPa.Therefore, adopt the rotor of the quick peeler of this non-oriented electromagnetic steel sheet having manufacturing can realize sufficient high speed rotating.
In addition, the high frequency iron loss W of the non-oriented electromagnetic steel sheet having that constitutes by these compositions
10/1000For example be below the 100W/kg.Therefore, adopt the rotor of the quick peeler of this non-oriented electromagnetic steel sheet having manufacturing can help the high efficiency and the miniaturization of whirler.That is to say, can suppress and power loss that accompanies to the conversion of mechanical energy from electric energy and the heating of accompanying with it.And, make high frequency iron loss W in order to reduce eddy-current loss
10/1000Below 100W/kg, the thickness of non-oriented electromagnetic steel sheet having is preferably below the 0.30mm.
The inventor by following experimental verification these effects.At first, the slab that contains C:0.017 quality %, Si:3.12 quality %, Al:0.65 quality %, Ni:2.54 quality %, P:0.02 quality %, N:0.003 quality %, Ti:0.18 quality % is carried out hot rolling, thereby obtain hot-rolled steel sheet.The value R of this hot-rolled steel sheet
TiBe 2.3.Then, hot-rolled steel sheet is cold rolled to 4 kinds of thickness shown in the table 1, just obtains cold-rolled steel sheet.Then, cold-rolled steel sheet is implemented the continuous final annealings in 20 seconds under 780 ℃, thereby obtain non-oriented electromagnetic steel sheet having.Then, downcut the Epstein iron loss from non-oriented electromagnetic steel sheet having and measure sample and tension test sheet, adopt these samples to measure magnetic properties and mechanical characteristics.It the results are shown in Table 1." W in the following table
15/50" expression iron loss W
15/50, " B50 " expression magneticflux-density B50, " W
10/1000" expression iron loss W
10/1000In addition, " YP " represents yield-point, and " TS " represents tensile strength, and " EL " represents unit elongation.
Table 1
As shown in table 1, in sample No.1 and sample No.2, obtained the above tensile strength of 900MPa, sample No.1 and sample No.2 are high strength, but high frequency iron loss W
10/1000Surpass 100W/kg.This is because the thickness of non-oriented electromagnetic steel sheet having surpasses 0.30mm.
Think that thus the thickness of non-oriented electromagnetic steel sheet having is preferably below the 0.30mm.
In addition, non-oriented electromagnetic steel sheet having of the present invention for example can adopt following method to make.At first, melting has the slab of above-mentioned composition, this slab is implemented heating and hot rolling, thereby obtain hot-rolled steel sheet.Then, cold rolling to this hot-rolled steel sheet enforcement, just obtain cold-rolled steel sheet.Then, carry out final annealing.In addition, reduce and embrittlement, preferably do not carry out hot-rolled sheet annealing, also preferably do not carry out cold rolling process annealing for fear of the intensity that is accompanied by grain growing.Has the hot-rolled steel sheet of above-mentioned composition if adopt, even do not carry out hot-rolled sheet annealing and process annealing, the intensity that also can be improved and the effect that reduces high frequency iron loss.In addition, can also improve bendability because of omitting hot-rolled sheet annealing.That is to say that therefore non-oriented electromagnetic steel sheet having of the present invention can realize the raising of intensity and the reduction of high frequency iron loss by relatively more easy processing owing to have above-mentioned composition.
Embodiment
(the 1st experiment)
At first, to contain the composition shown in the table 2, remainder comprises that the slab of Fe and unavoidable impurities carries out hot rolling, thereby obtain hot-rolled steel sheet.Then, hot-rolled steel sheet is carried out cold rolling, just obtain the cold-rolled steel sheet that thickness is 0.20mm.Then, under 750 ℃, cold-rolled steel sheet is implemented the continuous final annealing in 30 seconds, thereby obtained non-oriented electromagnetic steel sheet having.
Table 2
Then, downcut the Epstein iron loss from non-oriented electromagnetic steel sheet having and measure sample and tension test sheet.Then, adopt the Epstein iron loss to measure sample and measure magnetic properties, adopt the tension test sheet to measure mechanical characteristics.It the results are shown in Table 3.
Table 3
As shown in table 3, in comparative example No.11 and No.12, high frequency iron loss W
10/1000Be lower than 100W/kg, but because of value R
TiBe lower than 1 and make tensile strength lower, not enough 900MPa.Especially, in comparative example No.11, owing to do not contain Ti fully, so tensile strength significantly reduces.
On the other hand, in embodiment No.13 and No.14, because of value R
TiDeng the high frequency iron loss W that suitably can access below the 100W/kg
10/1000And the above tensile strength of 900MPa.In addition, yield-point is also than comparative example No.11 and No.12 height.
(the 2nd experiment)
At first, to contain the composition shown in the table 4, remainder comprises that the slab of Fe and unavoidable impurities carries out hot rolling, thereby obtain hot-rolled steel sheet.Then, hot-rolled steel sheet is carried out cold rolling, just obtain the cold-rolled steel sheet that thickness is 0.25mm.Then, under 775 ℃, cold-rolled steel sheet is implemented the continuous final annealing in 30 seconds, thereby obtained non-oriented electromagnetic steel sheet having.
Table 4
Then, downcut the Epstein iron loss from non-oriented electromagnetic steel sheet having and measure sample and tension test sheet.Then, adopt the Epstein iron loss to measure sample and measure magnetic properties, adopt the tension test sheet to measure mechanical characteristics.It the results are shown in Table 5.
Table 5
As shown in table 5, in comparative example No.21 and No.22, high frequency iron loss W
10/1000Be lower than 100W/kg, but because of value R
TiBe lower than 1 and make tensile strength lower, not enough 900MPa.Especially, in comparative example No.21, owing to do not contain Ti fully, so tensile strength significantly reduces.
On the other hand, in embodiment No.23 and No.24, because of value R
TiDeng the high frequency iron loss W that suitably can access below the 100W/kg
10/1000And the above tensile strength of 900MPa.In addition, yield-point is also than comparative example No.21 and No.22 height.
Utilizability on the industry
The present invention for example can be used in electro-magnetic steel plate manufacturing industry and electro-magnetic steel plate application industry.
Claims (8)
1. non-oriented electromagnetic steel sheet having is characterized in that:
Contain C:0.003 quality %～0.05 quality %,
N:0.001 quality %～0.01 quality % and
Si:2.8 quality %～3.5 quality %;
And then contain below the Ni:4.0 quality % and among below the Mn:2.0 quality % at least a kind of being selected from more than the 0.5 quality % in total amount;
And contain Ti: Ti content is being defined as [Ti] quality %, C content is defined as [C] quality %, when N content is defined as [N] quality %, uses the value R of [Ti]/4 ([C]+[N]) expression
TiBe 1～10;
Al content is below the 3.0 quality %;
P content is below the 0.2 quality %;
Remainder comprises Fe and unavoidable impurities.
2. non-oriented electromagnetic steel sheet having according to claim 1 is characterized in that: Ti content is 0.1 quality～0.3 quality.
3. non-oriented electromagnetic steel sheet having according to claim 1 is characterized in that: contain B:0.001 quality %～0.007 quality %.
4. non-oriented electromagnetic steel sheet having according to claim 2 is characterized in that: contain B:0.001 quality %～0.007 quality %.
5. non-oriented electromagnetic steel sheet having according to claim 1 is characterized in that: contain at least a kind that is selected from the following element:
Cu:0.02 quality %～1.0 quality %,
Sn:0.02 quality %～0.5 quality %,
Sb:0.02 quality %～0.5 quality %,
Cr:0.02 quality %～3.0 quality %, and
Rare earth metal: 0.001 quality %～0.01 quality %.
6. non-oriented electromagnetic steel sheet having according to claim 2 is characterized in that: contain at least a kind that is selected from the following element:
Cu:0.02 quality %～1.0 quality %,
Sn:0.02 quality %～0.5 quality %,
Sb:0.02 quality %～0.5 quality %,
Cr:0.02 quality %～3.0 quality %, and
Rare earth metal: 0.001 quality %～0.01 quality %.
7. non-oriented electromagnetic steel sheet having according to claim 3 is characterized in that: contain at least a kind that is selected from the following element:
Cu:0.02 quality %～1.0 quality %,
Sn:0.02 quality %～0.5 quality %,
Sb:0.02 quality %～0.5 quality %,
Cr:0.02 quality %～3.0 quality %, and
Rare earth metal: 0.001 quality %～0.01 quality %.
8. non-oriented electromagnetic steel sheet having according to claim 4 is characterized in that: contain at least a kind that is selected from the following element:
Cu:0.02 quality %～1.0 quality %,
Sn:0.02 quality %～0.5 quality %,
Sb:0.02 quality %～0.5 quality %,
Cr:0.02 quality %～3.0 quality %, and
Rare earth metal: 0.001 quality %～0.01 quality %.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-014298 | 2009-01-26 | ||
| JP2009014298 | 2009-01-26 | ||
| PCT/JP2010/050520 WO2010084847A1 (en) | 2009-01-26 | 2010-01-19 | Non-oriented electromagnetic steel sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102292462A true CN102292462A (en) | 2011-12-21 |
Family
ID=42355901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800053348A Pending CN102292462A (en) | 2009-01-26 | 2010-01-19 | Non-oriented electromagnetic steel sheet |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20110229362A1 (en) |
| EP (1) | EP2390376B1 (en) |
| JP (1) | JP4681687B2 (en) |
| KR (1) | KR101325369B1 (en) |
| CN (1) | CN102292462A (en) |
| BR (1) | BRPI1007193B1 (en) |
| PL (1) | PL2390376T3 (en) |
| TW (1) | TWI417401B (en) |
| WO (1) | WO2010084847A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110121567A (en) * | 2017-01-16 | 2019-08-13 | 日本制铁株式会社 | The manufacturing method of non-oriented electromagnetic steel sheet and non-oriented electromagnetic steel sheet |
| CN117157420A (en) * | 2021-03-31 | 2023-12-01 | 日本制铁株式会社 | Non-oriented electromagnetic steel sheet, method for producing non-oriented electromagnetic steel sheet, motor, and method for producing motor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2822206C (en) * | 2011-02-24 | 2016-09-13 | Jfe Steel Corporation | Non-oriented electrical steel sheet and method for manufacturing the same |
| EP2612942B1 (en) * | 2012-01-05 | 2014-10-15 | ThyssenKrupp Steel Europe AG | Non-grain oriented electrical steel or sheet metal, component produced from same and method for producing non-grain oriented electrical steel or sheet metal |
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| CN1520464A (en) * | 2001-06-28 | 2004-08-11 | ������������ʽ���� | Nonoriented electromagnetic steel sheet |
| JP2007186790A (en) * | 2005-12-15 | 2007-07-26 | Jfe Steel Kk | High strength non-oriented electrical steel sheet and method for manufacture the same |
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| JPS60238421A (en) | 1984-05-10 | 1985-11-27 | Kawasaki Steel Corp | Production of high tensile non-oriented electrical steel sheet |
| JPS62256917A (en) | 1986-04-28 | 1987-11-09 | Nippon Steel Corp | High-tensile non-oriented electrical steel sheet for rotating machine and its production |
| JPH028346A (en) | 1988-06-27 | 1990-01-11 | Nippon Steel Corp | High tensile electrical steel sheet and its manufacture |
| JPH0222442A (en) * | 1988-07-12 | 1990-01-25 | Nippon Steel Corp | High tensile electrical steel sheet and its manufacture |
| JP3091572B2 (en) | 1992-06-29 | 2000-09-25 | 日立ビアメカニクス株式会社 | Numerically controlled machine tool with power failure control |
| JP3305806B2 (en) * | 1993-05-21 | 2002-07-24 | 新日本製鐵株式会社 | Manufacturing method of high tensile non-oriented electrical steel sheet |
| JP2001323347A (en) * | 2000-05-15 | 2001-11-22 | Kawasaki Steel Corp | Nonoriented silicon steel sheet excellent in workability, recyclability and magnetic property after strain relieving annealing |
| TWI293332B (en) * | 2003-10-06 | 2008-02-11 | Nippon Steel Corp | A high-strength non-oriented electrical steel sheet and a fabricated part and a method of producing the same |
| WO2007007423A1 (en) * | 2005-07-07 | 2007-01-18 | Sumitomo Metal Industries, Ltd. | Non-oriented electromagnetic steel sheet and process for producing the same |
| JP5028992B2 (en) | 2005-12-15 | 2012-09-19 | Ｊｆｅスチール株式会社 | Non-oriented electrical steel sheet and manufacturing method thereof |
| WO2007069776A1 (en) * | 2005-12-15 | 2007-06-21 | Jfe Steel Corporation | Highly strong, non-oriented electrical steel sheet and method for manufacture thereof |
| JP5119710B2 (en) | 2007-03-28 | 2013-01-16 | Ｊｆｅスチール株式会社 | High strength non-oriented electrical steel sheet and manufacturing method thereof |
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2010
- 2010-01-19 CN CN2010800053348A patent/CN102292462A/en active Pending
- 2010-01-19 KR KR1020117017427A patent/KR101325369B1/en active IP Right Grant
- 2010-01-19 EP EP10733454.2A patent/EP2390376B1/en active Active
- 2010-01-19 BR BRPI1007193-8A patent/BRPI1007193B1/en active IP Right Grant
- 2010-01-19 JP JP2010522041A patent/JP4681687B2/en active Active
- 2010-01-19 PL PL10733454T patent/PL2390376T3/en unknown
- 2010-01-19 US US13/132,270 patent/US20110229362A1/en not_active Abandoned
- 2010-01-19 WO PCT/JP2010/050520 patent/WO2010084847A1/en active Application Filing
- 2010-01-25 TW TW099101935A patent/TWI417401B/en active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1520464A (en) * | 2001-06-28 | 2004-08-11 | ������������ʽ���� | Nonoriented electromagnetic steel sheet |
| JP2007186790A (en) * | 2005-12-15 | 2007-07-26 | Jfe Steel Kk | High strength non-oriented electrical steel sheet and method for manufacture the same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110121567A (en) * | 2017-01-16 | 2019-08-13 | 日本制铁株式会社 | The manufacturing method of non-oriented electromagnetic steel sheet and non-oriented electromagnetic steel sheet |
| CN110121567B (en) * | 2017-01-16 | 2021-07-27 | 日本制铁株式会社 | Non-oriented electromagnetic steel sheet and method for producing non-oriented electromagnetic steel sheet |
| CN117157420A (en) * | 2021-03-31 | 2023-12-01 | 日本制铁株式会社 | Non-oriented electromagnetic steel sheet, method for producing non-oriented electromagnetic steel sheet, motor, and method for producing motor |
Also Published As
| Publication number | Publication date |
|---|---|
| US20110229362A1 (en) | 2011-09-22 |
| KR20110096599A (en) | 2011-08-30 |
| EP2390376B1 (en) | 2019-05-01 |
| BRPI1007193A2 (en) | 2016-02-23 |
| EP2390376A1 (en) | 2011-11-30 |
| KR101325369B1 (en) | 2013-11-08 |
| TW201031762A (en) | 2010-09-01 |
| JPWO2010084847A1 (en) | 2012-07-19 |
| JP4681687B2 (en) | 2011-05-11 |
| WO2010084847A1 (en) | 2010-07-29 |
| TWI417401B (en) | 2013-12-01 |
| BRPI1007193B1 (en) | 2020-12-22 |
| PL2390376T3 (en) | 2019-09-30 |
| EP2390376A4 (en) | 2017-04-26 |
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