CN102373367A - Cold-rolled electromagnetic steel plate for rapid cycling synchrotron and manufacturing method thereof - Google Patents
Cold-rolled electromagnetic steel plate for rapid cycling synchrotron and manufacturing method thereof Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 55
- 239000010959 steel Substances 0.000 title claims abstract description 55
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 230000001351 cycling effect Effects 0.000 title abstract 2
- 238000005097 cold rolling Methods 0.000 claims abstract description 29
- 238000000137 annealing Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 24
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 12
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 10
- 238000007670 refining Methods 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 238000005098 hot rolling Methods 0.000 claims abstract description 6
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 6
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 4
- 238000003723 Smelting Methods 0.000 claims abstract description 4
- 238000005266 casting Methods 0.000 claims abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 6
- 241001417490 Sillaginidae Species 0.000 claims description 2
- 238000005554 pickling Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 73
- 229910052742 iron Inorganic materials 0.000 abstract description 35
- 229910052799 carbon Inorganic materials 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 5
- 230000006698 induction Effects 0.000 abstract description 2
- 239000002253 acid Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 230000006866 deterioration Effects 0.000 description 14
- 239000011572 manganese Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 9
- 239000013078 crystal Substances 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 239000012535 impurity Substances 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 239000004411 aluminium Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000002244 precipitate Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 229910017083 AlN Inorganic materials 0.000 description 3
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 3
- 229910000565 Non-oriented electrical steel Inorganic materials 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 238000009749 continuous casting Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910000655 Killed steel Inorganic materials 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 238000012356 Product development Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 2
- 230000002964 excitative effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- CADICXFYUNYKGD-UHFFFAOYSA-N sulfanylidenemanganese Chemical compound [Mn]=S CADICXFYUNYKGD-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C21D8/1233—Cold rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- C22C38/02—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
Abstract
The invention discloses a cold-rolled electromagnetic steel plate for a rapid cycling synchrotron and a manufacturing method thereof. The method comprises the following steps of: (1) smelting, performing RH refining treatment and casting into a blank, wherein the cold-rolled electromagnetic steel plate comprises the following components in percentage by weight: 0.001-0.003 percent of C, 0.60-0.90 percent of Si, 0.40-0.70 percent of Mn, less than or equal to 0.04 percent of P, 0.60-0.80 percent of Al, less than or equal to 0.0035 percent of S, less than or equal to 0.003 percent of N and the balance of Fe; (2) performing hot rolling; (3) normalizing at the temperature 960-980 DEG C for 30-60 seconds; 4) performing acid washing and cold rolling; (5) annealing at the temperature 850-870 DEG C for 13-15 seconds; and (6) coating to obtain a non-oriented silicon steel product. In the invention, the coercive force of the cold-rolled electromagnetic steel plate is small and returns to zero after the exciting strength is up to 0 oersted, and the coercive force Hc of a material is less than or equal to 79.6 A/m; the magnetic induction B50 is more than or equal to 1.75 T; the iron loss P15/50 is less than or equal to 4.2 W/kg, and is less than or equal to 3.2 W/kg after eliminating stress and annealing.
Description
Technical field
The present invention relates to a kind of cold rolling electro-magnetic steel plate, particularly a kind of cold rolling electro-magnetic steel plate and method of manufacture thereof that is used for fast-cycling synchrotron.
Background technology
One of design important feature of fast-cycling synchrotron; Be that magnetizing current is worked under the sinusoidal current state of direct current biasing, take the fast-cycling synchrotron (RCS) of higher-energy, carry out the acceleration of particle; To improve energy; After beam energy reaches certain requirement, from ring, draw it, be transferred on the spallation target.Higher requirement below according to this apparatus features the cold rolling electro-magnetic steel plate of making magnet having been proposed:
Coercive force is little, after excitatory intensity reaches 10 oersteds, returns zero, the coercivity H≤79.6A/m of material.
Magnetic strength is high, B
50>=1.74T, target control is at 1.75～1.76T; Iron loss is low, P
15/50≤4.7W/kg, target control is at 3.8～4.2W/kg, iron loss P after the stress relieving
15/50≤3.5W/kg, target control is at 2.8～3.2W/kg.
At present, Japan and the American-European electro-magnetic steel plate that is used for the fast-cycling synchrotron device are mainly through following method manufacturing:
1, the method handled through smooth (critical draught) of the Ultra-low carbon aluminium killed steel that disclosed of japanese patent laid-open 5-247604.Critical smooth purpose makes the grain coarsening when user's magnetic annealing of pure iron band, reaches the extremely low purpose of coercive force.The shortcoming of this method is because critical smooth amount is bigger, causes strain aging easily, and the pure iron plate back hardness of dispatching from the factory raises very soon, causes user's stamping-out difficulty.If the pure iron band is through cover annealing, because the fluctuation of pure iron belt length direction can cause the performance inconsistency of magnet.
2, the fast-cycling synchrotron device of the U.S. and Germany; The main products such as common non-oriented electrical steel M600-50A or M470-50A that adopt; Its product adopts the method for manufacture of smelting-continuous casting and hot rolling-pickling-cold rolling-annealing-coating to obtain; Though the coercive force and the iron loss of product meet the demands, the magnetic strength of this product is lower, B
50Actual in 1.69～1.72T, directly influence the ability of fast-cycling synchrotron.
Therefore the subject matter of existing at present cold rolling electro-magnetic steel plate restriction fast-cycling synchrotron is following:
1. iron loss and coercive force meet the demands, but magnetic strength is lower.
2. product performance meet the demands, but processing characteristics and less stable.
Summary of the invention
The object of the present invention is to provide a kind of cold rolling electro-magnetic steel plate and method of manufacture thereof that is used for fast-cycling synchrotron, obtain to be used for low iron loss, low-coercivity and the high magnetic sensing cold milling electro-magnetic steel plate of fast-cycling synchrotron.Be that coercive force is little, after excitatory intensity reaches 10 oersteds, return zero, the coercivity H≤79.6A/m of material; Magnetic strength is high, B50>=1.75T; Iron loss is low, P15/50≤4.2W/kg, iron loss P15/50≤3.2W/kg after the stress relieving.
For achieving the above object technical scheme of the present invention:
A kind of cold rolling electro-magnetic steel plate that is used for fast-cycling synchrotron, its composition weight percent is: C 0.001～0.003%, and Si 0.60%～0.90%; Mn 0.40%～0.70%; P≤0.04%, Al0.60%～0.80%, S≤0.0035%; N≤0.003%, surplus are Fe and unavoidably are mingled with.
The method of manufacture that is used for the cold rolling electro-magnetic steel plate of fast-cycling synchrotron of the present invention, it comprises the steps:
1) smelts, casts
The composition weight percent of cold rolling electro-magnetic steel plate is: C 0.001～0.003%, Si0.60%～0.90%, and Mn 0.40%～0.70%; P≤0.04%, Al 0.60%～0.80%, S≤0.0035%; N≤0.003%, surplus are Fe and unavoidably are mingled with;
Press mentioned component smelting, RH refining treatment, molten steel casting becomes base; Wherein, when the RH refining treatment finished, the free oxygen level in the molten steel was below 25ppm;
2) hot rolling;
3) normalizing, normalizing temperature are controlled at 960 ℃～980 ℃, normalizing time 30～60S;
4) pickling, cold rolling;
5) annealing, annealing temperature is controlled at 850 ℃～870 ℃, annealing time 13～15S;
6) obtain the non orientating silicon steel product after the coating.
Further, more than the average grain size 40 μ m in the steel plate, preferably be controlled between 40～50 μ m.
In composition design of the present invention:
Carbon: below 0.003%, carbon is the gap phase atom of iron-based dot matrix structure cell, hinders grain growth strongly; Cause iron loss deterioration and coercive force deterioration; Surpassing 0.005% will can bring magnetic aging to cause the obvious deterioration of iron loss to the decarburization difficulty simultaneously, therefore preferentially be controlled at below 0.003%.
Silicon: between 0.60%～0.90%, silicon is the important alloying element of electro-magnetic steel plate, improves resistivity, reduces eddy-current loss, reduces iron loss.Silicone content is low excessively, the iron loss deterioration; Silicone content is too high, makes electrical steel processibility variation, and magnetic strength reduces.
Manganese: 0.40%～0.70%, mainly be to increase resistivity, reduce iron loss, change condition of surface simultaneously, too high levels causes follow-up cold working difficulty, and content is low excessively, and iron loss raises, and causes hot-short.
Phosphorus: below 0.04%, mainly be the processibility of improving steel plate, because phosphorus is that crystal boundary gathers element partially, too high levels causes the processing deterioration, causes that simultaneously coercive force raises.
Aluminium: 0.60%～0.80%, mainly be to increase resistivity, reduce iron loss, reduce the oxide inclusion of steel-making simultaneously, improve magnetic strength, reduce coercive force.Too high levels, the continuous casting difficulty, and cause that magnetic strength reduces; Content is low excessively, iron loss deterioration, coercive force deterioration.
Sulphur: below 0.0035%, surpass 0.0035% the manganese sulfide amount of separating out is increased, hinder grain growth strongly, iron loss deterioration, coercive force deterioration.
Nitrogen: below 0.003%, surpass 0.003% the aluminium nitride AlN amount of separating out is increased, hinder crystal grain strongly and increase iron loss deterioration, coercive force deterioration.
In the method for manufacture of the present invention, when the RH refining treatment finished, the free oxygen level in the molten steel was below 25ppm.Mainly be the oxide inclusion that reduces in the steel, effectively reduce iron loss and coercive force.
When the RH refining treatment finished, the free oxygen level in the molten steel was greater than 25ppm when above, in the steel excessive free oxygen in the continuous casting process with steel in Si, Mn, P, Al form a spot of SiO
2-Al
2O
3-MnO ternary combined oxidation inclusion, and follow the P that forms trace
2O
5, the material crystals dot matrix after solidifying is distorted, cause magnetostatic energy and magnetoelastic energy to increase, the domain wall moving resistance increases.
Simultaneously, in 1100 ℃～880 ℃ hot rolling processes, SiO
2-Al
2O
3-MnO ternary combined oxidation inclusion has good plasticity, is rolled into the inclusion of chain and strip, in cold rolling processing, and SiO
2-Al
2O
3-MnO ternary combined oxidation inclusion presents the fragility characteristic; Rolled into a lot of granular inclusion easily, formation for the D type impurity (point-like) of advocating peace is the combined oxidation inclusion of pair, causes the magnetization difficulty with C type impurity (chain and strip); Magnetic induction density reduces, and coercive force increases.
Because the deoxidation intensity of metallic element is different with the trim point of oxygen in the steel, is followed successively by Al, Si, Mn.Therefore, in smelting process, 1.2%～1.7%, guarantee that refining forms SiO during early stage through the Si+Al overall control
2-Al
2O
3Can from steel, remove fully.Simultaneously, guarantee free oxygen when 25ppm is following, Mn is controlled at 0.40%～0.70% in the steel, promptly under the state of the rich manganese of oxygen deprivation, further reduces SiO
2-Al
2O
3The generation of-MnO ternary combined oxidation inclusion.Can reduce like this subsequent hot rolled and cold rolling after C type impurity (chain and strip) for the D type impurity (point-like) of advocating peace is secondary combined oxidation inclusion, promote grain growing, improve magnetic strength, reduce coercive force.
Requirement for normalizing process: the normalizing temperature is controlled at 960 ℃～980 ℃, normalizing time 30～60S.The control of normalizing temperature and Si, Mn, Al, N, C, S are relevant, and Si, Al, Mn content improve and can reduce the normalizing temperature, but the normalizing temperature is low excessively; The normalizing time is too short; Be unfavorable for that the gathering of precipitate is grown up in the steel, cause magnetic strength to reduce iron loss and coercive force deterioration; Si, Al, Mn content reduce and can improve the normalizing temperature, but the normalizing temperature is too high, the normalizing overlong time; The scaling loss of steel increases; Part such as MnS, AlN precipitate solid solution in the steel is separated out carbon nitrogen precipitate, serious deterioration iron loss and coercive force through cold rolling with the generation disperse of annealing back.For this reason, in control normalizing temperature, requirement has been proposed for sulphur and nitrogen element, S≤0.0035%, N≤0.003%.
Requirement for annealing process: annealing temperature is controlled at 850 ℃～870 ℃, annealing time 13～15S.Annealing temperature is too high, and annealing time is long, and average crystal grain diameter is excessive, and magnetic strength reduces, and poor processability, annealing temperature are low excessively, and annealing time is too short, owing to have phosphorus in the steel, exists crystal boundary to gather partially, hinders grain growth, causes iron loss and coercive force deterioration.For this reason, in the control annealing temperature, requirement has been proposed the P element, P≤0.04%.
More than the average grain size 40 μ m in the steel plate, optimum control is between 40～50 μ m.Grain-size and coercive force have certain corresponding relation.Crystal grain is too small, and iron loss raises, and coercive force is bigger than normal, and the excessive crystal boundary area occupied of crystal grain reduces, and coercive force reduces, and iron loss also reduces synchronously, but also can bring magnetic strength further to reduce.
Beneficial effect of the present invention
1, the present invention optimizes proportioning and exploration through the content of silicon, manganese, the favourable element of aluminium, reduces impurity element and inclusion content, further improves magnetic strength, reduces coercive force; Through the preferred design of normalizing process and annealing process, promote the precipitate and the grain coarsening of material, reduce iron loss and coercive force, obtain to be used for low iron loss, low-coercivity and the high magnetic sensing cold milling electro-magnetic steel plate of fast-cycling synchrotron.Guarantee for the raising of China's fast-cycling synchrotron state of the art provides strong starting material, expanded the new approaches of product development.
2, production cost is competitive.The method that the present invention does not adopt smooth once more (the critical draught) after the Ultra-low carbon aluminium killed steel once cold rolling annealing to handle, but on the basis of once cold rolling, directly anneal, coating, technological operation is easy to implement, production cost is competitive.
Embodiment
Below in conjunction with embodiment the present invention is made more detailed description.
The main chemical compositions of related steel of the embodiment of the invention and the related steel of comparative example is seen table 1.
With molten steel through converter, RH refining treatment, pour into base after, through hot rolling, normalizing, sour Shen, cold rolling, annealing obtains the non-oriented electrical steel product after the coating.Wherein, slab rolls into the band steel of 2.6mm through hot rolling; Hot rolled strip with 2.6mm carries out the normalizing processing then, and the normalizing temperature is controlled at 970 ℃, and the normalizing time is controlled at 30S～60S; Band steel after normalizing is handled carries out final annealing and coating again through the band steel of cold rolling one-tenth 0.5mm, and the plate temperature of the final annealing after cold rolling is 850 ℃, and annealing time is controlled at 13S～15S, obtains cold rolling electro-magnetic steel plate.
The electromagnetic performance index of embodiment and the cold rolling electro-magnetic steel plate of comparative example is seen table 2.
Table 1 unit: weight percent
| C | Si | Mn | Al | S | N | P | Fe | |
| Embodiment 1 | 0.003 | 0.750 | 0.550 | 0.71 | 0.0030 | 0.0015 | 0.04 | Surplus |
| Embodiment 2 | 0.001 | 0.760 | 0.600 | 0.72 | 0.0019 | 0.0017 | 0.01 | Surplus |
| Embodiment 3 | 0.001 | 0.620 | 0.410 | 0.61 | 0.0028 | 0.0016 | 0.03 | Surplus |
| Embodiment 4 | 0.002 | 0.860 | 0.690 | 0.78 | 0.0026 | 0.0018 | 0.02 | Surplus |
| Embodiment 5 | 0.003 | 0.620 | 0.670 | 0.79 | 0.0029 | 0.0019 | 0.03 | Surplus |
| Embodiment 6 | 0.003 | 0.860 | 0.420 | 0.62 | 0.0031 | 0.0023 | 0.01 | Surplus |
| Embodiment 7 | 0.001 | 0.760 | 0.430 | 0.72 | 0.0029 | 0.0017 | 0.02 | Surplus |
| Embodiment 8 | 0.002 | 0.760 | 0.680 | 0.61 | 0.0031 | 0.0016 | 0.04 | Surplus |
| Comparative example 1 | 0.001 | 1.450 | 0.250 | 0.35 | 0.0031 | 0.0016 | 0.03 | Surplus |
| Comparative example 2 | 0.005 | 1.040 | 0.300 | 0.25 | 0.0029 | 0.0018 | 0.01 | Surplus |
| Comparative example 3 | 0.002 | 0.750 | 0.250 | 0.25 | 0.0019 | 0.0015 | 0.02 | Surplus |
| Comparative example 4 | 0.003 | 0.350 | 0.270 | 0.20 | 0.0034 | 0.0019 | 0.04 | Surplus |
| Comparative example 5 | 0.003 | 0.760 | 0.600 | 0.72 | 0.0045 | 0.0017 | 0.05 | Surplus |
| Comparative example 6 | 0.001 | 0.750 | 0.620 | 0.71 | 0.0041 | 0.0037 | 0.02 | Surplus |
Table 2
Can find out that by table 1, table 2 the electromagnetic performance index of embodiment gained steel plate obviously is superior to the electromagnetic performance index of comparative example gained steel plate, and satisfy the request for utilization of fast-cycling synchrotron fully.
In sum; The present invention is based on the influence mechanism of each factor, on the basis of once cold rolling method, carry out the content of silicon, manganese, the favourable element of aluminium and optimize proportioning and exploration cold rolling electro-magnetic steel plate coercive force, iron loss and magnetic strength; Reduce impurity element and inclusion content; Further improve magnetic strength,, promote the precipitate and the grain coarsening of material through the preferred design of normalizing process and annealing process; Reduce iron loss and coercive force, obtain to be used for low iron loss, low-coercivity and the high magnetic sensing cold milling electro-magnetic steel plate and the method for manufacture thereof of fast-cycling synchrotron.
Non-oriented electrical steel of the present invention has been used for the device of the CSNS fast-cycling synchrotron (CSNS/RCS) of The CAS Institute of Modern Physics, and this product has that coercive force is low, and iron loss is low, the characteristics that magnetic strength is high.Successful Application of the present invention is that the raising of China's fast-cycling synchrotron state of the art provides strong starting material to guarantee, has expanded the new approaches of product development, has gained most valuable experience.
Claims (4)
1. cold rolling electro-magnetic steel plate that is used for fast-cycling synchrotron, its composition weight percent is: C 0.001～0.003%, and Si 0.60%～0.90%; Mn 0.40%～0.70%; P≤0.04%, Al:0.60%～0.80%, S≤0.0035%; N≤0.003%, surplus are Fe and unavoidably are mingled with.
2. the method for manufacture that is used for the cold rolling electro-magnetic steel plate of fast-cycling synchrotron as claimed in claim 1, it comprises the steps:
1) smelts, casts
The composition weight percent of cold rolling electro-magnetic steel plate is: C 0.001～0.003%, Si0.60%～0.90%, and Mn 0.40%～0.70%; P≤0.04%, Al 0.60%～0.80%, S≤0.0035%; N≤0.003%, surplus are Fe and unavoidably are mingled with;
Press mentioned component smelting, RH refining treatment, molten steel casting becomes base; Wherein, when the RH refining treatment finished, the free oxygen level in the molten steel was below 25ppm;
2) hot rolling;
3) normalizing, normalizing temperature are controlled at 960 ℃～980 ℃, normalizing time 30～60S;
4) pickling, cold rolling;
5) annealing, annealing temperature is controlled at 850 ℃～870 ℃, annealing time 13～15S;
6) obtain the non orientating silicon steel product after the coating.
3. the method for manufacture that is used for the cold rolling electro-magnetic steel plate of fast-cycling synchrotron as claimed in claim 2 is characterized in that, more than the average grain size 40 μ m in the steel plate
4. the method for manufacture that is used for the cold rolling electro-magnetic steel plate of fast-cycling synchrotron as claimed in claim 2 is characterized in that, the average grain size in the steel plate is controlled between 40～50 μ m.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102658031A CN102373367A (en) | 2010-08-26 | 2010-08-26 | Cold-rolled electromagnetic steel plate for rapid cycling synchrotron and manufacturing method thereof |
| RU2012130145/02A RU2012130145A (en) | 2010-08-26 | 2011-04-13 | COLD-ELECTROMAGNETIC SHEET STEEL FOR QUICK-CIRCULATING SYNCHROTRON AND METHOD FOR ITS MANUFACTURE |
| MX2012008269A MX2012008269A (en) | 2010-08-26 | 2011-04-13 | Cold rolled electromagnetic steel sheet used for rapid cycling synchrotron and producing method thereof. |
| JP2012546355A JP2013515857A (en) | 2010-08-26 | 2011-04-13 | Cold rolled electrical steel sheet for fast repetitive synchrotron and manufacturing method thereof |
| US13/520,405 US20120318411A1 (en) | 2010-08-26 | 2011-04-13 | Cold rolled electromagnetic steel sheet used for rapid cycling synchrotron and producing method thereof |
| EP11819309A EP2532766A1 (en) | 2010-08-26 | 2011-04-13 | Cold rolled electromagnetic steel sheet used for rapid cycling synchrotron and producing method thereof |
| PCT/CN2011/072709 WO2012024934A1 (en) | 2010-08-26 | 2011-04-13 | Cold rolled electromagnetic steel sheet used for rapid cycling synchrotron and producing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102658031A CN102373367A (en) | 2010-08-26 | 2010-08-26 | Cold-rolled electromagnetic steel plate for rapid cycling synchrotron and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102373367A true CN102373367A (en) | 2012-03-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102658031A Pending CN102373367A (en) | 2010-08-26 | 2010-08-26 | Cold-rolled electromagnetic steel plate for rapid cycling synchrotron and manufacturing method thereof |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20120318411A1 (en) |
| EP (1) | EP2532766A1 (en) |
| JP (1) | JP2013515857A (en) |
| CN (1) | CN102373367A (en) |
| MX (1) | MX2012008269A (en) |
| RU (1) | RU2012130145A (en) |
| WO (1) | WO2012024934A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103361544B (en) | 2012-03-26 | 2015-09-23 | 宝山钢铁股份有限公司 | Non orientating silicon steel and manufacture method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11236618A (en) * | 1998-02-24 | 1999-08-31 | Kawasaki Steel Corp | Production of low core loss nonoriented silicon steel sheet |
| JPH11286725A (en) * | 1998-04-01 | 1999-10-19 | Nippon Steel Corp | Manufacture of non-oriented silicon steel sheet excellent in magnetism |
| CN1887512A (en) * | 2005-06-30 | 2007-01-03 | 宝山钢铁股份有限公司 | Production process of cold rolled orientation-free electrical steel plate with low iron loss and high magnetic induction |
| CN101041222A (en) * | 2006-03-22 | 2007-09-26 | 宝山钢铁股份有限公司 | Cold-rolled non-oriented electrical steel and the method for preparing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0832927B2 (en) * | 1988-06-04 | 1996-03-29 | 株式会社神戸製鋼所 | Manufacturing method of non-oriented electrical steel sheet with high magnetic flux density |
| JPH0814015B2 (en) * | 1990-01-16 | 1996-02-14 | 日本鋼管株式会社 | Non-oriented electrical steel sheet having excellent magnetic properties and surface properties and method for producing the same |
| DE69230666T2 (en) * | 1991-09-25 | 2000-06-08 | Kawasaki Steel Co | METHOD FOR CONTINUOUSLY STEEL USING MAGNETIC FIELDS |
| JP3162782B2 (en) | 1992-03-05 | 2001-05-08 | 川崎製鉄株式会社 | Soft magnetic iron plate with excellent magnetic properties and method for producing the same |
| JPH09228005A (en) * | 1996-02-21 | 1997-09-02 | Nippon Steel Corp | Non-oriented silicon steel sheet of high magnetic flux density and low core loss excellent in heat conductivity, and its manufacture |
| JP3458682B2 (en) * | 1997-11-28 | 2003-10-20 | Ｊｆｅスチール株式会社 | Non-oriented electrical steel sheet excellent in magnetic properties after strain relief annealing and method for producing the same |
| JP3921806B2 (en) * | 1998-04-24 | 2007-05-30 | Ｊｆｅスチール株式会社 | Method for producing grain-oriented silicon steel sheet |
| JP2001181806A (en) * | 1999-10-13 | 2001-07-03 | Nippon Steel Corp | Nonriented silicon steel sheet excellent in magnetic permeability, hot rolled sheet thereof and method for producing the same |
| JP4507316B2 (en) * | 1999-11-26 | 2010-07-21 | Ｊｆｅスチール株式会社 | DC brushless motor |
| JP4192403B2 (en) * | 2000-05-26 | 2008-12-10 | Ｊｆｅスチール株式会社 | Electrical steel sheet used under DC bias |
| EP1580289B1 (en) * | 2002-12-05 | 2015-02-11 | JFE Steel Corporation | Non-oriented magnetic steel sheet and method for production thereof |
-
2010
- 2010-08-26 CN CN2010102658031A patent/CN102373367A/en active Pending
-
2011
- 2011-04-13 US US13/520,405 patent/US20120318411A1/en not_active Abandoned
- 2011-04-13 WO PCT/CN2011/072709 patent/WO2012024934A1/en active Application Filing
- 2011-04-13 JP JP2012546355A patent/JP2013515857A/en active Pending
- 2011-04-13 EP EP11819309A patent/EP2532766A1/en not_active Withdrawn
- 2011-04-13 MX MX2012008269A patent/MX2012008269A/en not_active Application Discontinuation
- 2011-04-13 RU RU2012130145/02A patent/RU2012130145A/en not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11236618A (en) * | 1998-02-24 | 1999-08-31 | Kawasaki Steel Corp | Production of low core loss nonoriented silicon steel sheet |
| JPH11286725A (en) * | 1998-04-01 | 1999-10-19 | Nippon Steel Corp | Manufacture of non-oriented silicon steel sheet excellent in magnetism |
| CN1887512A (en) * | 2005-06-30 | 2007-01-03 | 宝山钢铁股份有限公司 | Production process of cold rolled orientation-free electrical steel plate with low iron loss and high magnetic induction |
| CN101041222A (en) * | 2006-03-22 | 2007-09-26 | 宝山钢铁股份有限公司 | Cold-rolled non-oriented electrical steel and the method for preparing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2532766A1 (en) | 2012-12-12 |
| MX2012008269A (en) | 2012-11-23 |
| RU2012130145A (en) | 2014-01-27 |
| JP2013515857A (en) | 2013-05-09 |
| US20120318411A1 (en) | 2012-12-20 |
| WO2012024934A1 (en) | 2012-03-01 |
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Application publication date: 20120314 |