CN204904951U - Electric steel sheets and strips material - Google Patents
Electric steel sheets and strips material Download PDFInfo
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- CN204904951U CN204904951U CN201520747495.4U CN201520747495U CN204904951U CN 204904951 U CN204904951 U CN 204904951U CN 201520747495 U CN201520747495 U CN 201520747495U CN 204904951 U CN204904951 U CN 204904951U
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- pit
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- sheet
- sheet material
- nick
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- 239000000463 material Substances 0.000 title claims abstract description 57
- 229910000831 Steel Inorganic materials 0.000 title abstract description 9
- 239000010959 steel Substances 0.000 title abstract description 9
- 239000011159 matrix material Substances 0.000 claims abstract description 21
- 238000009826 distribution Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 58
- 230000008569 process Effects 0.000 abstract description 49
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 23
- 238000000137 annealing Methods 0.000 abstract description 20
- 229910052742 iron Inorganic materials 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 78
- 238000012360 testing method Methods 0.000 description 29
- 239000000243 solution Substances 0.000 description 28
- 230000005389 magnetism Effects 0.000 description 21
- 238000009413 insulation Methods 0.000 description 19
- 229910000976 Electrical steel Inorganic materials 0.000 description 18
- 238000002360 preparation method Methods 0.000 description 14
- 239000002994 raw material Substances 0.000 description 14
- 238000001035 drying Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 230000014759 maintenance of location Effects 0.000 description 7
- 238000005406 washing Methods 0.000 description 7
- 238000007373 indentation Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000005381 magnetic domain Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 239000003929 acidic solution Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910001337 iron nitride Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
Abstract
The utility model relates to an electric steel sheets and strips material, this electric steel sheets and strips material include adj. Tabular electrical sheet base member the nick slot of matrix surface pit that nick grooved surface distributes and the base member layer of containing na2SiO3 or na2SiO3 9H2O, the thickness of base member is 0.1-2mm, the diameter of pit is 1-100nm, the whole area of pit accounts for nick grooved surface long -pending 20-70%. The utility model discloses an electric steel sheets and strips material through in the pit of nick grooved surface design makes laser nick product iron loss behind annealing process reduce the effect and can not disappear, keeps original magnetic property.
Description
Technical field
The utility model relates to a kind of power transformer orientation silicon steel, is specifically related to a kind of electrical sheet sheet material.
Background technology
In recent years, people attempt more laser technology to be applied in the technical research of refinement magnetic domain.Rauscher etc. use continuous CO
2laser and high energy light fibre laser carry out laser scored to grain-oriented Si steel sheet, and high energy light fibre laser makes iron loss reduce about 13%, and silicon steel sheet surface nondestructive wound.Yang Yuling etc. adopt nitride laser method to carry out local wire nitrogen treatment to orientation silicon steel surface, have studied the impact of laser technical parameters on surface of silicon steel nitride formation, have invented the continuous CO of employing
2the orientation silicon steel laser local surface alloyage process of laser, this method significantly improves the high-temperature aging of orientation silicon steel while reducing iron loss.The defect of the method is complex process and cost is higher.
As improvement, Sun Feng waits so long and further provides with continuous CO
2nitride laser optimizes magnetic domain location mode, under air atmosphere, with the continuous CO of focusing of suitable nitrogen molecular bundle and certain power
2laser beam is simultaneously coaxial vertically acts on surface of silicon steel, can form the iron nitride with high-temperature stability in interaction zone, defines the new crystal boundary that Absorbable organic halogens optimizes the distribution of refinement main farmland, comprehensively improves the performance of orientation silicon steel.This technique makes the name oriented iron loss of silicon steel sheet reduction of the Z102 of 0.23mm thickness reach 23%, and working temperature is up to 1000 DEG C.
Subsequently, the laser scoring technique with thermal endurance also obtain interim progress.Gloomy towering, the Zhu Hong of Zan etc. utilizes nanosecond and femtosecond laser process equipment to continue the heat-resisting laser scoring technique test of in-depth, and result shows that core loss value reduces amplitude along with ultraviolet femtosecond laser scanning times or scanning energy and increases and increase gradually.If adopt ultraviolet femtosecond laser-hcl corrosion mode process orientation silicon steel surface further, the effect of good heat resistance and higher iron loss reduction amplitude can be reached.Li Haijiao etc. optimize the laser scored technological parameter of Nd:YAG, adopt operating current 12A, laser frequency 3500Hz, the optimal processing parameter of indentation speed 800mm/s, and the iron loss of 120 name oriented silicon steel can be made to reduce by 9.45%.Have studied laser scored input current size to the impact of orientation silicon steel surface insulation coating, and after analyzing indentation, sample temperature core loss value more than 500 DEG C can reply rising simultaneously.
Baosteel proposes and a kind ofly carries out laser scored method in oriented silicon steel band steel upper and lower surface simultaneously in patent of invention, rule in the band steel upper and lower surface run by the continuous-wave laser beam of high order focusing, upper and lower surface line of weakness adopts equidistantly staggered form to ensure indentation uniform in effect simultaneously.
But existing laser scoring technique does not have a thermal endurance, and the silicon steel product namely after laser scored process, cannot carry out stress relief annealing process to it, and annealing can cause its iron loss to rise, return to laser scored before.The indentation electrical steel product that prior art cannot realize can not be applied to Wound iron-core transformer or need the iron core bent silicon steel product to carry out the field of annealing in process.
Summary of the invention
The purpose of this utility model is to provide a kind of electrical sheet sheet material, overcomes the laser scored electric steel plate section product that the deficiencies in the prior art obtain having excellent heat resistance.
To achieve these goals, the utility model is by the following technical solutions:
A kind of electrical sheet sheet material, described electrical sheet sheet material comprises tabular electrical sheet matrix, the score groove of described matrix surface, the pit of described score groove surface distributed and contains Na
2siO
3or Na
2siO
39H
2the base layer of O, the thickness of described matrix is 0.1 ~ 2mm, and the diameter of described pit is 1 ~ 100nm, and the gross area of described pit accounts for 20 ~ 70% of described score groove surface area.Namely the thickness of electrical sheet matrix can be 0.1mm, 0.15mm, 0.18mm, 0.23mm, 0.27mm, 0.30mm, 0.5mm, 0.7mm, 0.8mm, 1mm, 1.5mm or 2mm etc., and the diameter of described pit can be 1nm, 5nm, 10nm, 20nm, 50nm, 70nm or 100nm etc.The gross area of described pit can account for 20%, 30%, 40%, 50%, 60% or 70% of described score groove surface area etc.
First preferred version of described electrical sheet sheet material, the thickness of described electrical sheet matrix is 0.18 ~ 0.30mm.
Second preferred version of described electrical sheet sheet material, the thickness of described electrical sheet matrix is 0.18mm.
3rd preferred version of described electrical sheet sheet material, the width of described score groove is 0.05 ~ 0.5mm, is spaced apart 1 ~ 20mm.The width of score groove can be 0.05mm, 0.08mm, 0.1mm, 0.2mm, 0.3mm or 0.5mm etc., and interval can be 1mm, 2mm, 4mm, 5mm, 8mm, 10mm, 12mm, 15mm, 16mm or 20mm etc.
4th preferred version of described electrical sheet sheet material, described pit distribution is even.
5th preferred version of described electrical sheet sheet material, the diameter of described pit is 20 ~ 100nm, and the gross area of described pit accounts for 30 ~ 70% of described score groove surface area.
6th preferred version of described electrical sheet sheet material, the diameter of described pit is 20nm.
7th preferred version of described electrical sheet sheet material, the gross area of described pit accounts for 30% of described score groove surface area.
A preparation method for described electrical sheet sheet material, described method comprises the steps:
1) laser scored process: adopt CO
2laser or Nd-YAG laser carry out laser scored process to electrical sheet matrix, obtain the electrical sheet matrix with score groove, and untreated electrical sheet matrix is silicon steel;
2) NaOH solution process score groove: etch step 1) gained score groove, the SiO on NaOH and described score groove surface
2reaction generates Na
2siO
3or Na
2siO
39H
2o is solid-solution in described electrical sheet matrix surface, and is SiO originally in described score groove surface
2position formed pit;
3) rinsing step 2) gained electrical sheet sheet material drying.
First optimal technical scheme of the preparation method of described electrical sheet sheet material, step 2) described in NaOH solution process score groove comprise with NaOH solution submergence electrical sheet matrix or be sprayed on electrical sheet matrix surface by NaOH solution.
Second optimal technical scheme of the preparation method of described electrical sheet sheet material, step 2) described in the process conditions of NaOH solution process score groove comprise: under normal temperature, take mass concentration as the NaOH solution corrosion 2 ~ 10min of 10 ~ 20%.
3rd optimal technical scheme of the preparation method of described electrical sheet sheet material, step 2) described in the process conditions of NaOH solution process score groove comprise: electrical sheet matrix is incubated 3 ~ 10min at 50 ~ 150 DEG C, then is the NaOH solution corrosion 2 ~ 10min of 0.5 ~ 9.9% with mass concentration.
4th optimal technical scheme of the preparation method of described electrical sheet sheet material, step 2) described in the process conditions of NaOH solution process score groove comprise: electrical sheet matrix is incubated 3min at 80 DEG C, then is the NaOH solution corrosion 6min of 5% with mass concentration.
5th optimal technical scheme of the preparation method of described electrical sheet sheet material, step 3) described flushing weakly acidic solution, neutral salt solution or clear water, the time is 2 ~ 4min; Described oven dry is under normal temperature.
The pit distribution on described electrical sheet sheet material score groove surface more even, the effect of the dislocation near its pinning pit is better, iron loss can be remained on reduced levels when electrical sheet heats.The specification of electrical sheet sheet material is that 0.18mm is thick, heating-up temperature 80 DEG C, NaOH solution mass concentration 5%, and under etching time 6min condition, size (being about 20nm) and the distribution of corroding the pit of the score groove of the electrical sheet sheet material obtained are the most even.The gross area of pit accounts for 30% of the gross area on the surface of score groove.Pit can the dislocation of pinning near it, hinders dislocation motion, obtain highdensity dislocation near pit.Form subgrain structure at pit edge place, crystal boundary makes steel when heating anneal, and dislocation is difficult to motion, is difficult to reply.Thus, even if under high-temperature heating state, pit and the neighbouring tension stress formed due to indentation process unattenuated, the magnetic domain of refinement can not become thick because of heating, thus keeps the iron loss of reduced levels.
With immediate prior art ratio, the utility model tool has the following advantages:
1) electrical sheet sheet material of the present utility model has corrosion pit in score groove surface distributed, and then produce strong pinning effect at indentation place, stop magnetic domain wall moving or rotation, make it have excellent thermal endurance, annealing in process 2h at 800 DEG C, reduce effect by the iron loss of laser scored generation can not disappear, substantially remain original magnetic property;
2) electrical sheet sheet material of the present utility model can be applicable to Wound iron-core transformer or needs the iron core manufacture etc. bent silicon steel product must carry out the field of annealing in process to the iron core made;
Accompanying drawing explanation
Fig. 1: the schematic diagram of the utility model electrical sheet sheet material
Fig. 2: the preparation flow figure of the utility model electrical sheet sheet material
Description of reference numerals
1 electrical sheet matrix
2 score groove
3 pits
Embodiment
For better the utility model being described, be convenient to understand the technical solution of the utility model, typical but non-limiting embodiment of the present utility model is as follows:
Embodiment 1
Raw material adopt the electrical sheet sheet material after laser scored process, and its specification is that 0.18mm is thick.Sheet material is heated to 80 DEG C, insulation 3min, is that the NaOH solution of 5% is sprayed to its surface by solution concentration, keeps 6min, form Na at grooved inner surface
2siO
39H
2o product, pit diameter size is about 20nm, and pit area accounts for 30% of the grooved inner surface gross area, utilizes clear water to rinse its surface, and washing time is 2min, carries out drying and processing at normal temperatures.
First magnetism testing is carried out to the electrical sheet sample of preparation, then sample at 800 DEG C, insulation 2h annealing in process, again carry out magnetism testing, test result is as shown in table 1.As shown in Table 1, raw material property retention after NaOH process is constant, and through at 800 DEG C, after insulation 2h annealing in process, the basic and material initial performance of magnetic property is consistent.
Table 1 magnetism testing Comparative result
Embodiment 2
Raw material adopt the electrical sheet sheet material after laser scored process, and its specification is that 0.27mm is thick.Under normal temperature state, it being immersed completely solution concentration is in the NaOH solution of 10%, keeps 2min then to take out, forms Na at grooved inner surface
2siO
3product, pit diameter size is about 30nm, and pit area accounts for 40% of the grooved inner surface gross area, utilizes clear water to rinse its surface, and washing time is 2min, carries out drying and processing at normal temperatures.
First magnetism testing is carried out to the electrical sheet sample of preparation, then sample at 800 DEG C, insulation 2h annealing in process, again carry out magnetism testing, test result is as shown in table 2.As shown in Table 2, raw material property retention after NaOH process is constant, and through at 800 DEG C, after insulation 2h annealing in process, the basic and material initial performance of magnetic property is consistent.
Table 2 magnetism testing Comparative result
Embodiment 3
Raw material adopt the electrical sheet sheet material after laser scored process, and its specification is that 0.30mm is thick.Under normal temperature state, it being immersed completely solution concentration is in the NaOH solution of 15%, keeps 5min then to take out, forms Na at grooved inner surface
2siO
3product, pit diameter size is about 60nm, and pit area accounts for 50% of the grooved inner surface gross area, utilizes clear water to rinse its surface, and washing time is 2min, carries out drying and processing at normal temperatures.
First magnetism testing is carried out to the electrical sheet sample of preparation, then sample at 800 DEG C, insulation 2h annealing in process, again carry out magnetism testing, test result is as shown in table 3.As shown in Table 3, raw material property retention after NaOH process is constant, and through at 800 DEG C, after insulation 2h annealing in process, the basic and material initial performance of magnetic property is consistent.
Table 3 magnetism testing Comparative result
Embodiment 4
Raw material adopt the electrical sheet sheet material after laser scored process, and its specification is that 0.30mm is thick.Under normal temperature state, it being immersed completely solution concentration is in the NaOH solution of 20%, keeps 2min then to take out, forms Na at grooved inner surface
2siO
3product, pit diameter size is about 100nm, and pit area accounts for 67% of the grooved inner surface gross area, utilizes clear water to rinse its surface, and washing time is 2min, carries out drying and processing at normal temperatures.
First magnetism testing is carried out to the electrical sheet sample of preparation, then sample at 800 DEG C, insulation 2h annealing in process, again carry out magnetism testing, test result is as shown in table 4.As shown in Table 4, raw material property retention after NaOH process is constant, and through at 800 DEG C, after insulation 2h annealing in process, the basic and material initial performance of magnetic property is consistent.
Table 4 magnetism testing Comparative result
Embodiment 5
Raw material adopt the electrical sheet sheet material after laser scored process, and its specification is that 0.23mm is thick.Sheet material is heated to 100 DEG C, insulation 6min, is that the NaOH solution of 6.5% is sprayed to its surface by solution concentration, keeps 5min, form Na at grooved inner surface
2siO
39H
2o product, pit diameter size is about 100nm, and pit area accounts for 70% of the grooved inner surface gross area, utilizes clear water to rinse its surface, and washing time is 2min, carries out drying and processing at normal temperatures.
First magnetism testing is carried out to the electrical sheet sample of preparation, then sample at 800 DEG C, insulation 2h annealing in process, again carry out magnetism testing, test result is as shown in table 5.As shown in Table 5, raw material property retention after NaOH process is constant, and through at 800 DEG C, after insulation 2h annealing in process, the basic and material initial performance of magnetic property is consistent.
Table 5 magnetism testing Comparative result
Embodiment 6
Raw material adopt the electrical sheet sheet material after laser scored process, and its specification is that 0.23mm is thick.Sheet material is heated to 150 DEG C, insulation 3min, is that the NaOH solution of 9.9% is sprayed to its surface by solution concentration, keeps 2min, form Na at grooved inner surface
2siO
39H
2o product, pit diameter size is about 80nm, and pit area accounts for 45% of the grooved inner surface gross area, utilizes clear water to rinse its surface, and washing time is 2min, carries out drying and processing at normal temperatures.
First magnetism testing is carried out to the electrical sheet sample of preparation, then sample at 800 DEG C, insulation 2h annealing in process, again carry out magnetism testing, test result is as shown in table 6.As shown in Table 6, raw material property retention after NaOH process is constant, and through at 800 DEG C, after insulation 2h annealing in process, the basic and material initial performance of magnetic property is consistent.
Table 6 magnetism testing Comparative result
Embodiment 7
Raw material adopt the electrical sheet sheet material after laser scored process, and its specification is that 0.23mm is thick.Sheet material is heated to 50 DEG C, insulation 3min, is that the NaOH solution of 0.5% is sprayed to its surface by solution concentration, keeps 10min, form Na at grooved inner surface
2siO
39H
2o product, pit diameter size is about 50nm, and pit area accounts for 60% of the grooved inner surface gross area, utilizes clear water to rinse its surface, and washing time is 2min, carries out drying and processing at normal temperatures.
First magnetism testing is carried out to the electrical sheet sample of preparation, then sample at 800 DEG C, insulation 2h annealing in process, again carry out magnetism testing, test result is as shown in table 7.As shown in Table 7, raw material property retention after NaOH process is constant, and through at 800 DEG C, after insulation 2h annealing in process, the basic and material initial performance of magnetic property is consistent.
Table 7 magnetism testing Comparative result
Above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; those of ordinary skill in the field are to be understood that; can modify to embodiment of the present utility model with reference to above-described embodiment or equivalent to replace, these do not depart from any amendment of the utility model spirit and scope or equivalently to replace within the claims that all awaits the reply in application.
Claims (8)
1. an electrical sheet sheet material, is characterized in that, described electrical sheet sheet material comprises tabular electrical sheet matrix, the score groove of described matrix surface, the pit of described score groove surface distributed and contains Na
2siO
3or Na
2siO
39H
2the base layer of O, the thickness of described matrix is 0.1 ~ 2mm, and the diameter of described pit is 1 ~ 100nm, and the gross area of described pit accounts for 20 ~ 70% of described score groove surface area.
2. electrical sheet sheet material according to claim 1, is characterized in that, the thickness of described electrical sheet matrix is 0.18 ~ 0.30mm.
3. electrical sheet sheet material according to claim 2, is characterized in that, the thickness of described electrical sheet matrix is 0.18mm.
4. electrical sheet sheet material according to claim 1, is characterized in that, the width of described score groove is 0.05 ~ 0.5mm, is spaced apart 1 ~ 20mm.
5. electrical sheet sheet material according to claim 1, is characterized in that, described pit distribution is even.
6. electrical sheet sheet material according to claim 1, is characterized in that, the diameter of described pit is 20 ~ 100nm, and the gross area of described pit accounts for 30 ~ 70% of described score groove surface area.
7. electrical sheet sheet material according to claim 6, is characterized in that, the diameter of described pit is 20nm.
8. electrical sheet sheet material according to claim 6, is characterized in that, the gross area of described pit accounts for 30% of described score groove surface area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520747495.4U CN204904951U (en) | 2015-09-24 | 2015-09-24 | Electric steel sheets and strips material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520747495.4U CN204904951U (en) | 2015-09-24 | 2015-09-24 | Electric steel sheets and strips material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204904951U true CN204904951U (en) | 2015-12-23 |
Family
ID=54927111
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|---|---|---|---|
| CN201520747495.4U Active CN204904951U (en) | 2015-09-24 | 2015-09-24 | Electric steel sheets and strips material |
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|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185503A (en) * | 2015-09-24 | 2015-12-23 | 国网智能电网研究院 | Electrical steel plate and fabrication method thereof |
-
2015
- 2015-09-24 CN CN201520747495.4U patent/CN204904951U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185503A (en) * | 2015-09-24 | 2015-12-23 | 国网智能电网研究院 | Electrical steel plate and fabrication method thereof |
| CN105185503B (en) * | 2015-09-24 | 2018-01-19 | 国网智能电网研究院 | A kind of electrical sheet sheet material and preparation method thereof |
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| GR01 | Patent grant |