CN101456076A - Preparation method of high saturation induction density Fe-Si alloy sheet band - Google Patents
Preparation method of high saturation induction density Fe-Si alloy sheet band Download PDFInfo
- Publication number
- CN101456076A CN101456076A CNA2007101992199A CN200710199219A CN101456076A CN 101456076 A CN101456076 A CN 101456076A CN A2007101992199 A CNA2007101992199 A CN A2007101992199A CN 200710199219 A CN200710199219 A CN 200710199219A CN 101456076 A CN101456076 A CN 101456076A
- Authority
- CN
- China
- Prior art keywords
- preparation
- alloy
- induction density
- saturation induction
- high saturation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Continuous Casting (AREA)
- Soft Magnetic Materials (AREA)
Abstract
The invention relates to a method for preparing a Fe-Si alloy thin strip with high saturation magnetic induction strength, which is technically characterized by comprising the following steps: adopting 99.8 percent pure iron and 99.99 percent pure Si under the protection of inert gas to prepare an alloy, heating the prepared alloy at high frequency in a quartz test tube the bottom of which has pores under the atmosphere of the inert gas to melt and preserving heat; and blowing the molten metal out of the test tube by inert airflow to drop onto a single copper roller rotating at high speed so as to prepare the alloy thin strip. The method has the advantages as follows: the adopted iron-silicon solid solution has 1t and 001gt, has the characteristic of directional prior growth, quick solidification of the single roller and stronger orientated growth capability, and obtains solidified tissues of specific orientation, so the preparation method is simple, avoids complex processes of rolling and thermal treatment, combines quick solidification and orientated growth into a same process, and improves the saturation magnetic induction strength.
Description
Technical field
The present invention relates to a kind of preparation method of high saturation induction density Fe-Si alloy sheet band, a kind ofly be different from new preparation process rolling and the subsequent heat treatment complex process, and improve saturation induction density.
Background technology
The Fe-Si alloy is a kind of soft magnetic materials, is the element of industrial silicon steel.Except that requirement to other parameter, wish that it has high saturation induction density, purpose is to save resource, be convenient to short and small frivolous, can be rapidly externally the counter-rotating of polarity of the magnetic field make response, to be applied to the middle low power power transformer.
For improving magnetic conductivity, often adopt rolling method to prepare silicon steel, to produce along the texture of the particular crystal orientation of direction of easy axis.The common Fe-Si alloy organizing with particular crystal orientation is goss texture and cubic texture: goss texture by the 110} face is parallel to rolling surface and have＜100〉crystal orientation crystal grain forms, and cube texture is by { the 100} face is parallel to the crystal grain of the having of rolling surface＜100〉crystal orientation and forms.In addition, high silicon content can increase resistivity, reduces magnetic hystersis loss.Therefore, the content of increase silicon is the basic demand that improves the silicon steel material magnetic property.But the adding of silicon has two shortcomings: the one, and the fragility of increase material.Owing to adopt milling method, require alloy that certain toughness will be arranged, though and high silicon content can reduce magnetic loss, the increase of fragility is unfavorable for rolling carrying out, the upper content limit of silicon generally is 5wt% when therefore adopting milling method; Two is reductions that the adding of the second phase non-ferromagnetic elements certainly will cause saturation induction density.About the about 2T of saturation induction density (tesla) of conventional 3wt%Si silicon steel.Therefore, seek a kind of crystal grain that both kept and have certain orientation, the preparation method that can increase saturation induction density again is necessary.
Summary of the invention
The technical problem that solves
For fear of the deficiencies in the prior art part, the present invention proposes a kind of preparation method of high saturation induction density Fe-Si alloy sheet band, can improve saturation induction density.
Technical scheme
Thought of the present invention is: the crystal lattice of iron is a cubic structure, and its preferential growth direction is＜100〉direction.If to apply certain outside heat dissipation direction in the process of setting, then under the situation that adds minor amount of silicon, form solid solution still along＜100〉direction growths, can avoid adopting rolling certain crystal orientation that obtains like this, and can allow the content of silicon surpass 5wt%.Therefore, can adopt certain simple technique, realize the preparation of Fe-Si material.
Technical characterictic of the present invention is that preparation process is as follows:
(1) alloy is molten joins: adopt 99.8% pure iron and 99.99% pure Si that fusion alloying under the inert gas shielding is being arranged;
(2) heating before the preparation: fusion alloying is being had under the inert gas atmosphere environment, in the narrow meshed quartz test tube in bottom, adopting high-frequency heating to fusing and insulation;
(3) alloy preparation: motlten metal is blown out test tube with inert gas, drip to down on the single roller of copper of rotation at a high speed, prepare alloy thin band.
The si content of described alloy is in 2～6.5wt% scope.
The diameter range of described quartz test tube bottom aperture is between 0.4～0.8 millimeter.
The diameter of the single roller of described copper is 120 millimeters.
The single roller linear resonance surface velocity of the copper scope of described high speed rotation is between 20～52 meter per seconds.
Adopt the strip alloy of method for preparing, its saturation induction density can reach 2～2.4T, improves 8～15%.
Beneficial effect
Advantage of the present invention has: have stronger oriented growth ability owing to utilized iron silicon solid solution to have along characteristics and single roller rapid solidification of＜001〉direction tachyauxesis, obtained the solidified structure of particular crystal orientation, therefore the preparation method is simple, has avoided complicated rolling and heat treatment process; Rapid solidification and oriented growth are incorporated into same process, have improved saturation induction density.
Description of drawings
Fig. 1: the alloy initial magnetization curve when line roller speed is 20 meter per seconds
Fig. 2: the alloy initial magnetization curve when line roller speed is 50 meter per seconds
The specific embodiment
Now in conjunction with the accompanying drawings the present invention is further described:
Embodiment 1:
1) joins Fe-2wt%Si alloy, Fe-4wt%Si alloy and three kinds of alloys of Fe-6.5wt%Si are molten;
2) will melt the alloy for preparing is heated to fusing and is incubated 2 minutes in quartz test tube;
3) be under the situation of 20 meter per seconds in single roller line roller speed, following of melt is obtained alloy thin band;
4) adopt initial magnetization curve that the measurement of LakeShore 735VSM vibration magnetic strength instrument is parallel to the strip surface as shown in Figure 1.
Embodiment 2:
1) will melt and join that Fe-2wt%Si alloy, Fe-4wt%Si alloy and three kinds of alloys of Fe-6.5wt%Si are molten joins;
2) will melt the alloy for preparing is heated to fusing and is incubated 2 minutes in quartz test tube;
3) be under the situation of 50 meter per seconds in single roller line roller speed, following of melt is obtained alloy thin band;
4) adopt initial magnetization curve that the measurement of LakeShore 735VSM vibration magnetic strength instrument is parallel to the strip surface as shown in Figure 2.
Claims (5)
1. the preparation method of a high saturation induction density Fe-Si alloy sheet band is characterized in that preparation process is as follows:
(1) alloy is molten joins: adopt 99.8% pure iron and 99.99% pure Si that fusion alloying under the inert gas shielding is being arranged;
(2) heating before the preparation: fusion alloying is being had under the inert gas atmosphere environment, in the narrow meshed quartz test tube in bottom, adopting high-frequency heating to fusing and insulation;
(3) alloy preparation: motlten metal is blown out test tube with inert gas, drip to down on the single roller of copper of rotation at a high speed, prepare alloy thin band.
2. the preparation method of high saturation induction density Fe-Si alloy sheet band according to claim 1, it is characterized in that: the si content of described alloy is in 2～6.5wt% scope.
3. the preparation method of high saturation induction density Fe-Si alloy sheet band according to claim 1 is characterized in that: the diameter range of described quartz test tube bottom aperture is between 0.4～0.8 millimeter.
4. the preparation method of high saturation induction density Fe-Si alloy sheet band according to claim 1 is characterized in that: the diameter of the single roller of described copper is 120 millimeters.
5. the preparation method of high saturation induction density Fe-Si alloy sheet band according to claim 1 is characterized in that: the single roller linear resonance surface velocity of the copper scope of described high speed rotation is between 20～52 meter per seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101992199A CN101456076A (en) | 2007-12-14 | 2007-12-14 | Preparation method of high saturation induction density Fe-Si alloy sheet band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101992199A CN101456076A (en) | 2007-12-14 | 2007-12-14 | Preparation method of high saturation induction density Fe-Si alloy sheet band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101456076A true CN101456076A (en) | 2009-06-17 |
Family
ID=40767356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101992199A Pending CN101456076A (en) | 2007-12-14 | 2007-12-14 | Preparation method of high saturation induction density Fe-Si alloy sheet band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101456076A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185560A (en) * | 2015-08-24 | 2015-12-23 | 北京康普锡威科技有限公司 | Preparation method of Fe-based metal soft magnetic powder core |
-
2007
- 2007-12-14 CN CNA2007101992199A patent/CN101456076A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185560A (en) * | 2015-08-24 | 2015-12-23 | 北京康普锡威科技有限公司 | Preparation method of Fe-based metal soft magnetic powder core |
| CN105185560B (en) * | 2015-08-24 | 2017-11-03 | 北京康普锡威科技有限公司 | A kind of preparation method of ferrous metals soft magnetic-powder core |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104087833B (en) | Fe-based nanocrystalline magnetically soft alloy that high frequency performance is excellent and preparation method thereof | |
| Zhang et al. | Effects of Cobalt Addition in Nanocrystalline ${\rm Fe} _ {83.3}{\rm Si} _ {4}{\rm B} _ {8}{\rm P} _ {4}{\rm Cu} _ {0.7} $ Soft Magnetic Alloy | |
| CN101650999A (en) | Fe-based amorphous or nanocrystalline soft magnetic alloy and preparation method thereof | |
| CN104485192B (en) | A kind of iron-based amorphous and nanocrystalline soft magnetic alloy and preparation method thereof | |
| CN104851545B (en) | A kind of permanent-magnet material preparation method with grain boundary decision layer | |
| CN107267889B (en) | A kind of Fe-based amorphous alloy and preparation method thereof with low stress sensibility | |
| CN105088107A (en) | Fe-based amorphous alloy with high saturation magnetic induction intensity and strong amorphous forming ability | |
| CN104451465B (en) | A kind of preparation method for industrial iron-based amorphous and nanocrystalline soft magnetic alloy | |
| CN104036901A (en) | High-permeability low-loss metal soft-magnetism composite material and preparing method thereof | |
| CN103602931A (en) | Iron-based amorphous nanocrystalline soft magnetic alloy and preparation method thereof | |
| CN105014065A (en) | Fe-Si-Al soft magnetic powder | |
| CN106119661B (en) | A kind of Mn-Ni-Sn-Co alloy thin bands and preparation method thereof | |
| CN104805382B (en) | Amorphous nanocrystalline alloy thin strip and preparation method thereof | |
| CN105671460B (en) | The preparation method of inexpensive FeNbB ternarys non-crystaline amorphous metal soft magnetic materials | |
| CN110079749A (en) | A kind of iron based nano crystal-amorphous soft magnet magnetically soft alloy and the preparation method and application thereof | |
| CN103866206B (en) | Cobalt-based nano-crystal soft-magnetic strip alloy material and preparation method | |
| CN101456076A (en) | Preparation method of high saturation induction density Fe-Si alloy sheet band | |
| CN106935352A (en) | A kind of complex phase magnetic material and preparation method | |
| CN102943202A (en) | Fe-Al-B magnetostrictive thin piece material and preparation method thereof | |
| CN106282848B (en) | A kind of Fe-based amorphous alloy composite material | |
| CN105913989B (en) | High remanent magnetism material and preparation method | |
| CN105702408B (en) | A kind of preparation method of nano crystal soft magnetic material | |
| CN103785827B (en) | Ferrocobalt-base alloy magnetic powder material for paint and preparation method | |
| CN103305771B (en) | Iron-based dual-phase coupled alloy and preparation method thereof | |
| CN103014594B (en) | Preparation method of high-performance magnetostrictive thin plate strip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090617 |