CN105244135A - Electrical steel plate material and preparation method thereof - Google Patents
Electrical steel plate material and preparation method thereof Download PDFInfo
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- CN105244135A CN105244135A CN201510615981.5A CN201510615981A CN105244135A CN 105244135 A CN105244135 A CN 105244135A CN 201510615981 A CN201510615981 A CN 201510615981A CN 105244135 A CN105244135 A CN 105244135A
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Abstract
The invention provides an electrical steel plate material and a preparation method thereof. The electrical steel plate material comprises a platelike electrical steel substrate, nick grooves in the surface of the substrate, and calcium silicate hydrate phase and magnesium silicate hydrate phase distributed on the surface of the nick grooves; the substrate is 0.1-2 mm in thickness; and the diameter of the calcium silicate hydrate phase and magnesium silicate hydrate phase is 1-100 nm. The preparation method comprises the following steps: 1), laser nicking processing; 2), (CaO+MgO) powder processing nick grooves: reacting the CaO, MgO with SiO2 on the surface of the nick grooves to generate the calcium silicate hydrate phase and magnesium silicate hydrate phase; and 3), washing the electrical steel plate material obtained in the step 2) and drying. The electrical steel plate material has excellent heat-resisting effect, namely, the iron loss reduction effect generated by the laser nicking is not eliminated, the original magnetic property of the electrical steel plate material can be maintained, and the insulating coatings on the silicon steel surface are not damaged when the electrical steel plate material is subjected to thermal insulation at the temperature of 800 DEG for 2 hours and annealing treatment; in addition, the preparation method is simple in operation, low in cost and suitable for large-scale industrial production.
Description
Technical field
The invention belongs to and relate to a kind of power transformer orientation silicon steel, be specifically related to a kind of electrical sheet sheet material and preparation method thereof.
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 object of this invention is to provide a kind of electrical sheet sheet material and preparation method thereof, overcome the deficiencies in the prior art, obtain the laser scored electric steel plate section product with excellent heat resistance, the field needing to carry out annealing in process can be applied to.
To achieve these goals, this invention takes following technical scheme:
A kind of electrical sheet sheet material, described electrical sheet sheet material comprises tabular electrical sheet matrix, the score groove of described matrix surface and the hydrated calcium silicate phase of described score groove surface distributed and hydrated magnesium silicate phase, the thickness of described matrix is 0.1 ~ 2mm, and the diameter of described hydrated calcium silicate phase and described hydrated magnesium silicate phase is 1 ~ 100nm.The thickness of electrical sheet sheet material 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.
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.The interval of score groove can be 1mm, 2mm, 4mm, 5mm, 8mm, 10mm, 12mm, 15mm, 16mm or 20mm etc.
4th preferred version of described electrical sheet sheet material, described hydrated calcium silicate phase and described hydrated magnesium silicate are uniformly distributed in described score groove surface mutually.
5th preferred version of described electrical sheet sheet material, described hydrated calcium silicate is eakleite (Ca mutually
6[Si
6o
17] (OH)
2) and tobermorite (Ca
5[Si
6o
18h
2] 4H
2o); Described hydrated magnesium silicate is antigorite (Mg mutually
6[Si
4o
10(OH)
8]); The volume ratio of described hydrated calcium silicate phase and described hydrated magnesium silicate phase is 1:1 ~ 1:10.The volume ratio of hydrated calcium silicate phase and hydrated magnesium silicate phase can be 1:1,1:2,1:3,1:5,1:7,1:9 or 1:10 etc.
6th preferred version of described electrical sheet sheet material, the volume ratio of described hydrated calcium silicate phase and described hydrated magnesium silicate phase is 1:2.
7th preferred version of described electrical sheet sheet material, the diameter of described hydrated calcium silicate phase and described hydrated magnesium silicate phase is 20 ~ 60nm.The diameter of hydrated calcium silicate phase and hydrated magnesium silicate phase can be 1nm, 5nm, 10nm, 20nm, 30nm, 50nm, 70nm or 100nm etc.
8th preferred version of described electrical sheet sheet material, the diameter of described hydrated calcium silicate phase and described hydrated magnesium silicate phase is 30nm.
9th preferred version of described electrical sheet sheet material, in described score groove, the gross area of described hydrated calcium silicate phase and described hydrated magnesium silicate phase account for described flute surfaces long-pending 20 ~ 80%.The gross area of hydrated calcium silicate phase and hydrated magnesium silicate phase can account for described flute surfaces long-pending 20%, 30%, 40%, 50%, 60% and 80% etc.
Tenth preferred version of described electrical sheet sheet material, the gross area of described hydrated calcium silicate phase and described hydrated magnesium silicate phase 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: laser scored process electrical sheet matrix, obtains the electrical sheet matrix with score groove;
2) (CaO+MgO) powder-processed score groove: at normal temperature or 50 DEG C, by CaO powder and MgO powder adherence in described score groove surface, then sprays high-temperature vapor 3 ~ 8min, the SiO on CaO and MgO and described score groove surface
2reaction generates the hydrated calcium silicate phase and the hydrated magnesium silicate phase that are distributed in described score groove surface;
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) particle diameter of described CaO powder is 0.01 ~ 10 μm; The particle diameter of described MgO powder is 0.01 ~ 5 μm.The particle diameter of CaO powder can be 0.01 μm, 0.5 μm, 1 μm, 2 μm, 3 μm, 4 μm, 5 μm, 7 μm or 10 μm, and 0.01 μm-2 μm, 1 μm-5 μm, 2 μm-7 μm or 4 μm-10 μm.The particle diameter of MgO powder can be 0.01 μm, 0.5 μm, 1 μm, 2 μm, 3 μm, 4 μm or 5 μm, and 0.01 μm-2 μm, 1 μm-3 μm, 2 μm-4 μm or 3 μm-5 μm.
Second optimal technical scheme of the preparation method of described electrical sheet sheet material, step 2) particle diameter of described CaO powder is 2 μm; The particle diameter of described MgO powder is 1 μm.
3rd optimal technical scheme of the preparation method of described electrical sheet sheet material, step 2) process conditions of described (CaO+MgO) powder-processed score groove comprise: at 50 DEG C, by CaO powder and MgO powder adherence in described score groove surface, then spray high-temperature vapor 5min.
Should be understood that the present invention adopts and adhere to CaO powder and MgO powder and the mode of spraying high-temperature vapor corrodes score groove, the Fe element in the matrix of electrical sheet sheet material does not react, and is conducive to the smooth and complete of guarantee matrix.Especially for the electrical sheet of high standard, such as, 0.18mm electrical sheet, or even 0.15mm.The acid solution corrosion that prior art adopts very easily causes the matrix destroying electrical sheet sheet material.
To should also be understood that in prior art the Fe element reaction in solution and electrical sheet sheet material matrix in acid solution corrosion process, thus generally do not heat, in case the reaction of acid solution and Fe aggravates, corrosion efficiency is low.And forms of corrosion of the present invention, the Fe element in electrical sheet sheet material matrix does not react, and high-temperature vapor thus can be adopted to improve reaction temperature, and then improves reaction rate to improve corrosion efficiency, improves industrial production efficiency.Selecting the volume ratio of the particle diameter of suitable CaO powder and MgO powder, CaO powder and MgO powder and powder to spread, clad can is long-pending accounts for grooved inner surface area, can obtain good corrosive effect and speed.To elaborate hereinafter.
Should also be understood that the embodiment of the present invention also can not adopt high-temperature vapor, because CaO powder and water reaction can release a large amount of heat, also can play acceleration and SiO
2the effect of reaction, the embodiment of the present invention is not construed as limiting this.
4th optimal technical scheme of the preparation method of described electrical sheet sheet material, the volume ratio of described CaO powder and MgO powder is 1:1 ~ 1:10, and the gross area of described CaO powder and MgO powder adherence accounts for 40% ~ 90% of described score groove surface area.The Volume fraction of CaO powder and MgO powder is 1:1,1:2,1:3,1:5,1:7,1:9 or 1:10 etc.The total surface area of CaO powder and MgO powder can occupy 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85% or 90% of score groove surface area etc.
5th optimal technical scheme of the preparation method of described electrical sheet sheet material, the volume ratio of described CaO powder and MgO powder is 1:2, and the gross area of described CaO powder and MgO powder adherence accounts for 55% of described score groove surface area.
6th 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.
In the preparation method of electrical sheet sheet material of the present invention, do not limit laser scored means, the CO that industry is conventional can be adopted
2laser or Nd-YAG laser carry out laser treatment to electrical sheet, the mixed-powder of CaO powder and MgO powder is covered subsequently score groove place paving, high-temperature vapor is sprayed to it, CaO powder and MgO powder can under the effect of steam heat release and with electrical sheet top layer SiO
2react, under the effect of MgO, CaO not with SiO
2form CaSiO
3, but generating hydrated calcium silicate phase and hydrated magnesium silicate phase product, hydrated calcium silicate comprises eakleite (Ca mutually
6[Si
6o
17] (OH)
2) and tobermorite (Ca
5[Si
6o
18h
2] 4H
2o) particle, hydrated magnesium silicate comprises antigorite (Mg mutually
6[Si
4o
10(OH)
8]) particle.Hydrated calcium silicate phase and hydrated magnesium silicate phase product produce strong pinning effect at indentation place, stop magnetic domain wall moving or rotation, the laser scored product after process of the present invention is made to have excellent thermal endurance, through 800 DEG C, insulation 2h annealing in process, reduce effect by the iron loss of laser scored generation can not disappear, substantially remain original magnetic property.
Should understand, the present invention adopts and adheres to CaO powder and MgO powder and the forms of corrosion spraying high-temperature vapor, and in the industrial production of reality, injection high-temperature vapor can be realized by simple equipment, the requirement to production site size and protective equipment can be reduced, reduce production cost.
In addition, method of the present invention, at electrical sheet matrix surface water generation reaction calcium silicates phase particle and hydrated magnesium silicate phase particle, can strengthen the insulating properties of electrical sheet, be conducive to it and be applied in transformer.Meanwhile, the hydrated calcium silicate phase particle in matrix and hydrated magnesium silicate phase particle can improve the hardness of electrical sheet, thus can improve the mechanical property of electrical sheet.Select suitable CaO powder and the volume ratio of MgO powder, can significantly improve the hardness of electrical sheet, preferably technological parameter elaborates hereinafter.
The CaO powder that the present invention is used and MgO powder should not be excessive or too small, the diameter of CaO powder need be strict controlled between 0.01 ~ 10 μm, the diameter of MgO powder need be strict controlled between 0.01 ~ 5 μm, powder diameter crosses conference makes the product of generation cannot pinning dislocation, do not have pinning effect, the too small easy generation of particle diameter is reunited, and product size distribution can be made uneven, and the second-phase product amounts being conducive to pinning neticdomain wall is reduced.
Hydrated calcium silicate phase particle and hydrated magnesium silicate phase particle more even in the distribution on the surface of score groove, the effect of the dislocation near its pinning hydrated calcium silicate phase particle and hydrated magnesium silicate phase particle is better, thus still iron loss can be remained on reduced levels at electrical sheet when heating.The specification of electrical sheet sheet material is that 0.18mm is thick, the particle diameter of CaO powder is 2 μm, the particle diameter of MgO powder is 1 μm, the volume fraction ratio of CaO powder and MgO powder is 1:2, CaO powder and MgO powder paving clad can amass and account for score groove inner surface area 55%, heating-up temperature 50 DEG C, under etching time 5min condition, corrode the hydrated calcium silicate phase particle of score groove and the size (being about 30nm) of hydrated magnesium silicate phase particle of the electrical sheet sheet material obtained and distribute the most even, the gross area of hydrated calcium silicate phase particle and hydrated magnesium silicate phase particle accounts for 30% of score groove total surface area.
Hydrated calcium silicate phase particle and hydrated magnesium silicate phase particle can dislocations near pinning hydrated calcium silicate phase particle and hydrated magnesium silicate phase particle, hinder dislocation motion, near hydrated calcium silicate phase particle and hydrated magnesium silicate phase particle, obtain highdensity dislocation.Form subgrain structure in hydrated calcium silicate phase particle and hydrated magnesium silicate phase grain edges 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, hydrated calcium silicate phase particle and hydrated magnesium silicate phase particle 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 iron loss at reduced levels.
With immediate prior art ratio, tool of the present invention has the following advantages:
1) hydrated calcium silicate phase of the present invention and hydrated magnesium silicate have strong pinning effect relative to the tension stress of groove near zone or dislocation, the laser scored product after process of the present invention is made to have excellent thermal endurance, through 800 DEG C, insulation 2h annealing in process, reduce effect by the iron loss of laser scored generation can not disappear, substantially remain original magnetic property.
2) the electrical sheet sheet material that prepared by the present invention 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;
3) in preparation method of the present invention CaO and MgO can not with the insulating coating generation chemical reaction on electrical sheet surface, can not destroy insulating coating, do not affect its insulation property, preparation process is simple to operate, is applicable to large-scale industrial production.
Accompanying drawing explanation
Fig. 1: electrical sheet sheet material schematic diagram of the present invention
Fig. 2: the preparation flow figure of electrical sheet sheet material of the present invention
Wherein:
1 electrical sheet matrix
2 score groove
3 hydrated magnesium silicate phases
4 hydrated calcium silicate phases
Embodiment
For better the present invention being described, be convenient to understand technical scheme of the present invention, typical but non-limiting embodiment of the present invention 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 50 DEG C, score groove inner surface paving, to cover particle diameter be the CaO powder of 2 μm and particle diameter is the MgO powder of 1 μm, the Volume fraction of CaO powder and MgO powder is 1:2, powder paving clad can is long-pending accounts for grooved inner surface area 55%, high-temperature vapor is sprayed subsequently at groove place, 5min is kept then to take out, the product of hydrated calcium silicate phase and hydrated magnesium silicate phase is formed at grooved inner surface, both volume fraction ratios are 1:2, particle size is between 30nm, and surface area accounts for grooved inner surface area 30%.Utilize neutral salt solution to rinse its surface subsequently, washing time is 2min, carries out drying and processing at normal temperatures.
First to the electrical sheet magnetic sample performance test after process, subsequently at 800 DEG C, insulation 2h annealing in process, then carry out magnetism testing, test result is as shown in table 5.As shown in Table 5, raw material property retention after (CaO+MgO) process is constant, through at 800 DEG C, after insulation 2h annealing in process, magnetic property substantially and material initial performance be consistent.
Table 5 magnetism testing Comparative result
Embodiment 2
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, score groove inner surface paving, to cover particle diameter be the CaO powder of 0.01 ~ 4 μm and particle diameter is the MgO powder of 0.01 ~ 4 μm, the Volume fraction of CaO powder and MgO powder is 1:10, powder paving clad can amasss and accounts for 40% of grooved inner surface, high-temperature vapor is sprayed subsequently at groove place, 5min is kept then to take out, the product of hydrated calcium silicate phase and hydrated magnesium silicate phase is formed at grooved inner surface, both volume fraction ratios are 1:9, particle size is between 1 ~ 20nm, and total surface area accounts for grooved inner surface area 40%.Utilize neutral salt solution to rinse its surface subsequently, washing time is 2min, carries out drying and processing at normal temperatures.
First to the electrical sheet magnetic sample performance test after process, subsequently at 800 DEG C, insulation 2h annealing in process, then carry out magnetism testing, test result is as shown in table 6.As shown in Table 6, raw material property retention after (CaO+MgO) process is constant, through at 800 DEG C, after insulation 2h annealing in process, magnetic property substantially and material initial performance be consistent.
Table 6 magnetism testing Comparative result
Embodiment 3
Raw material adopt the electrical sheet sheet material after laser scored process, and its specification is that 0.27mm is thick.Sheet material is heated to 50 DEG C, score groove inner surface paving, to cover particle diameter be the CaO powder of 1 ~ 6 μm and particle diameter is the MgO powder of 1 ~ 5 μm, CaO powder and MgO powder volume mark are than being 1:5, powder paving clad can is long-pending accounts for grooved inner surface area 50%, high-temperature vapor is sprayed subsequently at groove place, 5min is kept then to take out, the product of hydrated calcium silicate phase and hydrated magnesium silicate phase is formed at grooved inner surface, both volume fraction ratios are 1:3, particle size is between 20 ~ 70nm, and surface area accounts for grooved inner surface area 60%.Utilize neutral salt solution to rinse its surface subsequently, washing time is 2min, carries out drying and processing at normal temperatures.
First to the electrical sheet magnetic sample performance test after process, subsequently at 800 DEG C, insulation 2h annealing in process, then carry out magnetism testing, test result is as shown in table 7.As shown in Table 7, raw material property retention after (CaO+MgO) process is constant, through at 800 DEG C, after insulation 2h annealing in process, magnetic property substantially and material initial performance be consistent.
Table 7 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.Sheet material is heated to 50 DEG C, score groove inner surface paving, to cover particle diameter be the CaO powder of 6 ~ 10 μm and particle diameter is the MgO powder of 0.01 ~ 0.99 μm, CaO powder and MgO powder volume mark are than being 1:4, powder paving clad can is long-pending accounts for grooved inner surface area 70%, high-temperature vapor is sprayed subsequently at groove place, 5min is kept then to take out, the product of hydrated calcium silicate phase and hydrated magnesium silicate phase is formed at grooved inner surface, both volume fraction ratios are 2:9, particle size is between 40 ~ 90nm, and surface area accounts for grooved inner surface area 85%.Utilize neutral salt solution to rinse its surface subsequently, washing time is 2min, carries out drying and processing at normal temperatures.
To the electrical sheet magnetic sample performance test after process, subsequently at 800 DEG C, insulation 2h annealing in process, then carry out magnetism testing, test result is as shown in table 8.As shown in Table 8, raw material property retention after (CaO+MgO) process is constant, through at 800 DEG C, after insulation 2h annealing in process, magnetic property substantially and material initial performance be consistent.
Table 8 magnetism testing Comparative result
Embodiment 5
Raw material adopt the electrical sheet sheet material after laser scored process, and its specification is that 0.27mm is thick.Sheet material is heated to 50 DEG C, score groove inner surface paving, to cover particle diameter be the CaO powder of 2 ~ 8 μm and particle diameter is the MgO powder of 0.15 ~ 3 μm, the Volume fraction of CaO powder and MgO powder is 1:3, powder paving clad can is long-pending accounts for grooved inner surface area 80%, high-temperature vapor is sprayed subsequently at groove place, 5min is kept then to take out, the product of hydrated calcium silicate phase and hydrated magnesium silicate phase is formed at grooved inner surface, both volume fraction ratios are 2:5, particle size is between 50 ~ 100nm, and surface area accounts for grooved inner surface area 90%.Utilize neutral salt solution to rinse its surface subsequently, washing time is 2min, carries out drying and processing at normal temperatures.
First to the electrical sheet magnetic sample performance test after process, subsequently at 800 DEG C, insulation 2h annealing in process, then carry out magnetism testing, test result is as shown in table 9.As shown in Table 9, raw material property retention after (CaO+MgO) process is constant, through at 800 DEG C, after insulation 2h annealing in process, magnetic property substantially and material initial performance be consistent.
Table 9 magnetism testing Comparative result
Embodiment 6
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, score groove inner surface paving, to cover particle diameter be the CaO powder of 0.01 ~ 1 μm and particle diameter is the MgO powder of 0.05 ~ 2 μm, the Volume fraction of CaO powder and MgO powder is 2:5, powder paving clad can is long-pending accounts for grooved inner surface area 60%, high-temperature vapor is sprayed subsequently at groove place, 5min is kept then to take out, the product of hydrated calcium silicate phase and hydrated magnesium silicate phase is formed at grooved inner surface, both volume fraction ratios are 1:2, particle size is between 10 ~ 50nm, and surface area accounts for grooved inner surface area 45%.Utilize neutral salt solution to rinse its surface subsequently, washing time is 2min, carries out drying and processing at normal temperatures.
First to the electrical sheet magnetic sample performance test after process, subsequently at 800 DEG C, insulation 2h annealing in process, then carry out magnetism testing, test result is as shown in table 10.As shown in Table 10, raw material property retention after (CaO+MgO) process is constant, through at 800 DEG C, after insulation 2h annealing in process, magnetic property substantially and material initial performance be consistent.
Table 10 magnetism testing Comparative result
Above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; those of ordinary skill in the field are to be understood that; can modify to the specific embodiment of the present invention with reference to above-described embodiment or equivalent to replace, these do not depart from any amendment of spirit and scope of the invention or equivalently to replace within the claims that all awaits the reply in application.
Claims (18)
1. an electrical sheet sheet material, it is characterized in that, described electrical sheet sheet material comprises tabular electrical sheet matrix, the score groove of described matrix surface and the hydrated calcium silicate phase of described score groove surface distributed and hydrated magnesium silicate phase, the thickness of described matrix is 0.1 ~ 2mm, and the diameter of described hydrated calcium silicate phase and described hydrated magnesium silicate phase is 1 ~ 100nm.
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 hydrated calcium silicate phase and described hydrated magnesium silicate are uniformly distributed in described score groove surface mutually.
6. electrical sheet sheet material according to claim 1, is characterized in that, described hydrated calcium silicate is eakleite (Ca mutually
6[Si
6o
17] (OH)
2) and tobermorite (Ca
5[Si
6o
18h
2] 4H
2o); Described hydrated magnesium silicate is antigorite (Mg mutually
6[Si
4o
10(OH)
8]); The volume ratio of described hydrated calcium silicate phase and described hydrated magnesium silicate phase is 1:1 ~ 1:10.
7. electrical sheet sheet material according to claim 6, is characterized in that, the volume ratio of described hydrated calcium silicate phase and described hydrated magnesium silicate phase is 1:2.
8. electrical sheet sheet material according to claim 1, is characterized in that, the diameter of described hydrated calcium silicate phase and described hydrated magnesium silicate phase is 20 ~ 60nm.
9. electrical sheet sheet material according to claim 8, is characterized in that, the diameter of described hydrated calcium silicate phase and described hydrated magnesium silicate phase is 30nm.
10. electrical sheet sheet material according to claim 1, is characterized in that, in described score groove, the gross area of described hydrated calcium silicate phase and described hydrated magnesium silicate phase account for described flute surfaces long-pending 20 ~ 80%.
11. electrical sheet sheet materials according to claim 10, is characterized in that, the gross area of described hydrated calcium silicate phase and described hydrated magnesium silicate phase accounts for 30% of described score groove surface area.
The preparation method of 12. 1 kinds of arbitrary described electrical sheet sheet materials of claim 1-11, it is characterized in that, described method comprises the steps:
1) laser scored process: laser scored process electrical sheet matrix, obtains the electrical sheet matrix with score groove;
2) (CaO+MgO) powder-processed score groove: at normal temperature or 50 DEG C, by CaO powder and MgO powder adherence in described score groove surface, then sprays high-temperature vapor 3 ~ 8min, the SiO on CaO and MgO and described score groove surface
2reaction generates the hydrated calcium silicate phase and the hydrated magnesium silicate phase that are distributed in described score groove surface;
3) rinsing step 2) gained electrical sheet sheet material drying.
The preparation method of 13. electrical sheet sheet materials according to claim 12, is characterized in that, step 2) particle diameter of described CaO powder is 0.01 ~ 10 μm; The particle diameter of described MgO powder is 0.01 ~ 5 μm.
The preparation method of 14. electrical sheet sheet materials according to claim 13, is characterized in that, step 2) particle diameter of described CaO powder is 2 μm; The particle diameter of described MgO powder is 1 μm.
The preparation method of 15. electrical sheet sheet materials according to claim 12, it is characterized in that, step 2) process conditions of described (CaO+MgO) powder-processed score groove comprise: at 50 DEG C, by CaO powder and MgO powder adherence in described score groove surface, then spray high-temperature vapor 5min.
The preparation method of 16. electrical sheet sheet materials according to claim 12, it is characterized in that, the volume ratio of described CaO powder and MgO powder is 1:1 ~ 1:10, and the gross area of described CaO powder and MgO powder adherence accounts for 40% ~ 90% of described score groove surface area.
The preparation method of 17. electrical sheet sheet materials according to claim 16, is characterized in that, the volume ratio of described CaO powder and MgO powder is 1:2, and the gross area of described CaO powder and MgO powder adherence accounts for 55% of described score groove surface area.
The preparation method of 18. electrical sheet sheet materials according to claim 12, is characterized in that, 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.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114231987A (en) * | 2021-11-17 | 2022-03-25 | 首钢智新迁安电磁材料有限公司 | Chemical reagent and method for removing cladding material in heat-resistant notch oriented silicon steel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5826405B2 (en) * | 1979-10-03 | 1983-06-02 | 新日本製鐵株式会社 | Method for manufacturing electrical steel sheets for electrical equipment with excellent iron loss characteristics |
| JPH07220913A (en) * | 1994-02-04 | 1995-08-18 | Nippon Steel Corp | Magnetic steel plate excellent in magnetic characteristic |
| CN101979676A (en) * | 2010-11-26 | 2011-02-23 | 武汉钢铁(集团)公司 | Method for improving magnetic property of oriented silicon steel through laser scribing |
| CN104284994A (en) * | 2012-04-26 | 2015-01-14 | 杰富意钢铁株式会社 | Grain-oriented electrical steel sheet and method for manufacturing same |
| CN104726671A (en) * | 2013-12-23 | 2015-06-24 | Posco公司 | Oriented electrical steel sheet and method for manufacturing the same |
| CN205069256U (en) * | 2015-09-24 | 2016-03-02 | 国网智能电网研究院 | Electric steel sheets and strips material |
-
2015
- 2015-09-24 CN CN201510615981.5A patent/CN105244135B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5826405B2 (en) * | 1979-10-03 | 1983-06-02 | 新日本製鐵株式会社 | Method for manufacturing electrical steel sheets for electrical equipment with excellent iron loss characteristics |
| JPH07220913A (en) * | 1994-02-04 | 1995-08-18 | Nippon Steel Corp | Magnetic steel plate excellent in magnetic characteristic |
| CN101979676A (en) * | 2010-11-26 | 2011-02-23 | 武汉钢铁(集团)公司 | Method for improving magnetic property of oriented silicon steel through laser scribing |
| CN104284994A (en) * | 2012-04-26 | 2015-01-14 | 杰富意钢铁株式会社 | Grain-oriented electrical steel sheet and method for manufacturing same |
| CN104726671A (en) * | 2013-12-23 | 2015-06-24 | Posco公司 | Oriented electrical steel sheet and method for manufacturing the same |
| CN205069256U (en) * | 2015-09-24 | 2016-03-02 | 国网智能电网研究院 | Electric steel sheets and strips material |
Non-Patent Citations (1)
| Title |
|---|
| 冶金工业部钢铁研究院七室: "硅钢隔离涂层的研究", 《钢铁》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114231987A (en) * | 2021-11-17 | 2022-03-25 | 首钢智新迁安电磁材料有限公司 | Chemical reagent and method for removing cladding material in heat-resistant notch oriented silicon steel |
| CN114231987B (en) * | 2021-11-17 | 2023-09-15 | 首钢智新迁安电磁材料有限公司 | Chemical reagent for removing cladding in heat-resistant notch oriented silicon steel and method thereof |
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