CN106808159A - A kind of preparation method of high-silicon silicon steel sheet - Google Patents
A kind of preparation method of high-silicon silicon steel sheet Download PDFInfo
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- CN106808159A CN106808159A CN201510868639.6A CN201510868639A CN106808159A CN 106808159 A CN106808159 A CN 106808159A CN 201510868639 A CN201510868639 A CN 201510868639A CN 106808159 A CN106808159 A CN 106808159A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention discloses a kind of preparation method of high-silicon silicon steel sheet, it is related to silicon steel sheet production technical field, comprises the following steps:S1, take mixed powder;S2, mixed powder are rolled for the first time;S3, the mixed powder through first rolling is sintered first;S4, secondary rolling;S5, carry out electrostatic dusting in the mixed powder surface of secondary rolling;Mixed powder after S6, double sintering electrostatic dusting;S7, finish rolling;S8, annealing;The preparation method of high-silicon silicon steel sheet disclosed in this invention, using segmented sintering process, the band thing of acquisition is mutually single iron silicon solid solution, the thickness of band can be controlled by rolling pass, the band after first sintering has preferably shearing property, the machining such as shearing and punching press can be carried out, due to agglomeration and the solid solution of Si in preparation process, the tensile strength of band is incrementally increased, and under the frequency of more than 1kHz, sample has relatively low core loss.
Description
Technical field
The present invention relates to silicon steel sheet production technical field, more particularly to a kind of high-silicon silicon steel sheet
Preparation method.
Background technology
Silicon steel is mainly used as the iron core of various transformers and motor, with electronics industry and automation
Level is developed rapidly, it is desirable to which transformer and motor are used in high frequency, so can cause iron again
Damaging exponentially function increases, and magnetostriction increases, and noise is increased, in order to meet high frequency and inversion
The requirement that transformer is small to iron loss, permeability is high, magnetostriction is small, research finds, when silicon contains
Measure for 6.5% when, silicon steel sheet thickness is thinner, and its performance is better, thus obtain silicone content be 6.5%
Thin silicon steel plates be optimal selection, but the silicone content of common silicon steel sheet only has 1~3%, and with
The increase of silicon steel sheet silicon content, its processing characteristics can degenerate, after silicone content is more than 3.5%, just
Cannot be rolled again, domestic and international material science worker is proposed with solidifying method, injection molding soon
Method, chemical vapour deposition technique make 6.5%Si steel discs, all there is certain defect.
The content of the invention
The purpose of the present invention is exactly in order to the silicon steel sheet combination property for overcoming conventional method to process is poor
Defect, devise a kind of preparation method of high-silicon silicon steel sheet, the band after first sintering has
Preferably shearing property, can carry out the machining such as shearing and punching press, and the tensile strength of band is big,
Core loss is low.
The required technical problem for solving of the invention can be achieved through the following technical solutions:
A kind of preparation method of high-silicon silicon steel sheet, comprises the following steps:
S1, take mixed powder;
S2, mixed powder are rolled for the first time;
S3, the mixed powder through first rolling is sintered first;
S4, secondary rolling;
S5, carry out electrostatic dusting in the mixed powder surface of secondary rolling;
Mixed powder after S6, double sintering electrostatic dusting;
S7, finish rolling;
S8, annealing;
The mixed powder is iron Si powder.
The sintering temperature first takes 1000 DEG C or so, and sintering time takes 3 hours.
The double sintering temperature takes 1200 DEG C or so, and sintering time takes 3 hours.
The annealing temperature is 800 DEG C, and the time takes 3 hours.
As a result of above technical scheme, the invention has the advantages that:
The preparation method of high-silicon silicon steel sheet disclosed in this invention, using segmented sintering process,
The band thing of acquisition is mutually single iron silicon solid solution, can control band by rolling pass
Thickness, the band after first sintering has preferably shearing property, can be sheared and punching press
Deng machining, due to agglomeration and the solid solution of Si in preparation process, band
Tensile strength is incrementally increased, and under the frequency of more than 1kHz, sample has relatively low iron
Core loss.
Brief description of the drawings
Fig. 1 is present invention process method flow diagram;
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to
Understand and understand, with reference to being specifically illustrating, the present invention is expanded on further.
A kind of preparation method of high-silicon silicon steel sheet, comprises the following steps:
S1, take mixed powder;
S2, mixed powder are rolled for the first time;
S3, the mixed powder through first rolling is sintered first;
S4, secondary rolling;
S5, carry out electrostatic dusting in the mixed powder surface of secondary rolling;
Mixed powder after S6, double sintering electrostatic dusting;
S7, finish rolling;
S8, annealing;
The mixed powder is iron Si powder.
The sintering temperature first takes 1000 DEG C or so, and sintering time takes 3 hours, is obtained
Band shearing property it is good, can be machined.
The double sintering temperature takes 1200 DEG C or so, and sintering time takes 3 hours, secondary burning
The later web tension intensity of knot is incrementally increased.
The annealing temperature is 800 DEG C, and the time takes 3 hours.
The preparation method of high-silicon silicon steel sheet disclosed in this invention, using segmented sintering process,
The band thing of acquisition is mutually single iron silicon solid solution, can control band by rolling pass
Thickness, the band after first sintering has preferably shearing property, can be sheared and punching press
Deng machining, due to agglomeration and the solid solution of Si in preparation process, band
Tensile strength is incrementally increased, and under the frequency of more than 1kHz, sample has relatively low iron
Core loss.
General principle of the invention, principal character and of the invention excellent has been shown and described above
Point.It should be understood by those skilled in the art that, the present invention is not limited to the above embodiments, on
Merely illustrating the principles of the invention described in embodiment and specification is stated, the present invention is not being departed from
Various changes and modifications of the present invention are possible on the premise of spirit and scope, these changes and improvements
All fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended right
Claim and its equivalent are defined.
Claims (5)
1. a kind of preparation method of high-silicon silicon steel sheet, it is characterised in that:Comprise the following steps:
S1, take mixed powder;
S2, mixed powder are rolled for the first time;
S3, the mixed powder through first rolling is sintered first;
S4, secondary rolling;
S5, carry out electrostatic dusting in the mixed powder surface of secondary rolling;
Mixed powder after S6, double sintering electrostatic dusting;
S7, finish rolling;
S8, annealing;
2. a kind of preparation method of high-silicon silicon steel sheet according to claim 1, it is characterised in that:
The mixed powder is iron Si powder.
3. a kind of preparation method of high-silicon silicon steel sheet according to claim 1, it is characterised in that:
The sintering temperature first takes 1000 DEG C or so, and sintering time takes 3 hours.
4. a kind of preparation method of high-silicon silicon steel sheet according to claim 1, it is characterised in that:
The double sintering temperature takes 1200 DEG C or so, and sintering time takes 3 hours.
5. a kind of preparation method of high-silicon silicon steel sheet according to claim 1, it is characterised in that:
The annealing temperature is 800 DEG C, and the time takes 3 hours.
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CN201510868639.6A CN106808159A (en) | 2015-11-27 | 2015-11-27 | A kind of preparation method of high-silicon silicon steel sheet |
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Cited By (39)
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CN107829036A (en) * | 2017-12-18 | 2018-03-23 | 中南大学 | A kind of powder hot-pressing sintering manufacture method of high silicon steel thin belt material |
CN107900353A (en) * | 2017-12-18 | 2018-04-13 | 中南大学 | A kind of method that High temperature diffusion sintering prepares high silicon steel band with powder extruding |
CN107900351A (en) * | 2017-12-18 | 2018-04-13 | 中南大学 | A kind of powder rolling manufacture method of high silicon steel thin belt material |
CN107900355A (en) * | 2017-12-18 | 2018-04-13 | 中南大学 | A kind of method that powder warm-rolling prepares high silicon steel thin belt material |
CN107900356A (en) * | 2017-12-18 | 2018-04-13 | 中南大学 | A kind of method that powder tape casting prepares high silicon steel band with High temperature diffusion sintering |
CN107900357A (en) * | 2017-12-18 | 2018-04-13 | 中南大学 | A kind of method that High temperature diffusion sintering prepares high silicon steel band with powder tape casting |
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CN107900348A (en) * | 2017-12-18 | 2018-04-13 | 中南大学 | A kind of method that powder hotforging prepares single-phase Fe 6.5%Si silicon steel |
CN107900354A (en) * | 2017-12-18 | 2018-04-13 | 中南大学 | A kind of method that powder extruding prepares high silicon steel thin belt material |
CN107900349A (en) * | 2017-12-18 | 2018-04-13 | 中南大学 | A kind of method that powder hotforging prepares Fe 6.5%Si soft magnetic materials thin strips |
CN107900347A (en) * | 2017-12-18 | 2018-04-13 | 中南大学 | A kind of method that powder hotforging prepares high silicon steel band with High temperature diffusion sintering |
CN107914017A (en) * | 2017-12-18 | 2018-04-17 | 中南大学 | A kind of powder warm-rolling preparation method of Fe 6.5%Si soft magnetic materials thin strips |
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CN107971494A (en) * | 2017-12-18 | 2018-05-01 | 中南大学 | A kind of method that powder hot-pressing sintering prepares Fe-6.5%Si soft magnetic materials thin strips |
CN107971495A (en) * | 2017-12-18 | 2018-05-01 | 中南大学 | A kind of method that Powder hot isostatic pressure prepares Fe-6.5%Si soft magnetic materials thin strips |
CN107983962A (en) * | 2017-12-18 | 2018-05-04 | 中南大学 | A kind of method that powder rolling prepares single-phase Fe-6.5%Si silicon steel |
CN107999765A (en) * | 2017-12-18 | 2018-05-08 | 中南大学 | A kind of method that powder warm-rolling prepares Fe-6.5%Si soft magnetic materials thin strips |
CN107999758A (en) * | 2017-12-18 | 2018-05-08 | 中南大学 | A kind of powder hot-pressing sintering preparation method of Fe-6.5%Si soft magnetic materials thin strip |
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CN107999763A (en) * | 2017-12-18 | 2018-05-08 | 中南大学 | A kind of method that powder hotforging prepares Fe-6.5%Si bands with diffusion-sintering |
CN107999764A (en) * | 2017-12-18 | 2018-05-08 | 中南大学 | A kind of method that diffusion-sintering prepares Fe-6.5%Si bands with powder warm-rolling |
CN107999757A (en) * | 2017-12-18 | 2018-05-08 | 中南大学 | A kind of method that powder hot-pressing sintering prepares single-phase Fe-6.5%Si silicon steel |
CN107999767A (en) * | 2017-12-18 | 2018-05-08 | 中南大学 | A kind of method that powder extruding prepares Fe-6.5%Si bands with diffusion-sintering |
CN107999766A (en) * | 2017-12-18 | 2018-05-08 | 中南大学 | A kind of method that powder warm-rolling prepares Fe-6.5%Si bands with diffusion-sintering |
CN107999762A (en) * | 2017-12-18 | 2018-05-08 | 中南大学 | A kind of powder hotforging preparation method of Fe-6.5%Si soft magnetic materials thin strip |
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CN108044100A (en) * | 2017-12-18 | 2018-05-18 | 中南大学 | A kind of method that powder rolling prepares Fe-6.5%Si soft magnetic materials thin strips |
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CN108044095A (en) * | 2017-12-18 | 2018-05-18 | 中南大学 | A kind of method that diffusion-sintering prepares Fe-6.5%Si bands with powder rolling |
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CN108044107A (en) * | 2017-12-18 | 2018-05-18 | 中南大学 | A kind of Powder hot isostatic pressure preparation method of Fe-6.5%Si soft magnetic materials thin strip |
CN108044104A (en) * | 2017-12-18 | 2018-05-18 | 中南大学 | A kind of method that tape casting prepares Fe-6.5%Si bands with High temperature diffusion sintering |
CN108044102A (en) * | 2017-12-18 | 2018-05-18 | 中南大学 | A kind of method that powder warm-rolling prepares single-phase Fe-6.5%Si silicon steel |
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2015
- 2015-11-27 CN CN201510868639.6A patent/CN106808159A/en active Pending
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CN107829036A (en) * | 2017-12-18 | 2018-03-23 | 中南大学 | A kind of powder hot-pressing sintering manufacture method of high silicon steel thin belt material |
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