CN108950434A - A kind of small Fe-based amorphous band and preparation method thereof of exciting power - Google Patents
A kind of small Fe-based amorphous band and preparation method thereof of exciting power Download PDFInfo
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- CN108950434A CN108950434A CN201810805375.3A CN201810805375A CN108950434A CN 108950434 A CN108950434 A CN 108950434A CN 201810805375 A CN201810805375 A CN 201810805375A CN 108950434 A CN108950434 A CN 108950434A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
- C22C45/02—Amorphous alloys with iron as the major constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0611—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a single casting wheel, e.g. for casting amorphous metal strips or wires
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/003—Making ferrous alloys making amorphous alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
- H01F1/15308—Amorphous metallic alloys, e.g. glassy metals based on Fe/Ni
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
- H01F1/15341—Preparation processes therefor
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2200/00—Crystalline structure
- C22C2200/02—Amorphous
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C2202/02—Magnetic
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Abstract
The present invention provides a kind of preparation method of the small Fe-based amorphous band of exciting power, including melting step；The melting includes: to carry out melting using silicon-controlled 12 pulse intermediate frequency series-connection power supplies smelting furnace, stirs molten iron using electric furnace induction coil magnetic strength when melting, and electric furnace frequency is 300~500Hz, and smelting time is 50~60min.The exciting power 0.21vA/ ㎏ ﹣ 0.225vA/ ㎏ of the amorphous band, iron loss are 0.15~0.17W/kg.2.34~3.16A/m of dynamic coercivity of the amorphous band, lamination coefficient are 0.88~0.91, and very poor thickness is 0.5~0.6 micron.
Description
Technical field
The present invention relates to a kind of small Fe-based amorphous bands and preparation method thereof of exciting power, belong to amorphous alloy technology neck
Domain.
Background technique
Amorphous alloy transformer is a kind of energy saving transformer developed nineteen seventies, in the world earliest
The country for researching and developing amorphous alloy transformer is the U.S., assumes responsibility for amorphous alloy transformer by General Electric (U.S.A.) (GE) company at that time
Research and development program element.Merchandized handling is realized to last century late nineteen eighties.Due to having used a kind of new soft magnetic materials -- it is non-
Peritectic alloy, the performance of amorphous alloy transformer have surmounted all kinds of silicon steel transformers.
Amorphous alloy, or be glassy metal, it is a kind of new material to come out the 1970s, is to utilize chilling
Technology, is the strip with a thickness of 30 microns by molten steel one-pass molding, and obtained solid alloy (strip) is to be different from cold rolled silicon steel
The crystal structure that atomic rule arranges in material, exactly this its atom of alloy are in the non-crystal structure of random arrangement, make
It has the characteristics that high magnetic conductivity and low-loss with the narrow circuit B-H；The irregular limit of amorphous alloy atomic arrangement simultaneously
Having made having free passage for electronics causes resistivity ratio crystalline alloy to be higher by 2-3 times, is also beneficial to reduce eddy-current loss in this way.With non-
Peritectic alloy is transformer core made of raw material, and no-load loss reduces 75% compared with using the traditional transformer of silicon steel sheet
Left and right makes amorphous alloy transformer have energy conservation and environment protecting very significantly, when amorphous alloy transformer iron core is for oil
It, can a variety of pernicious gases of obvious emission reduction when soaking transformer.So more and more production firms are using amorphous alloy as change
The raw material of depressor iron core.
Patent CN102808140A disclose a kind of high saturated magnetic induction Fe-based nanocrystalline magnetically soft alloy material and its
Preparation method.Its scheme is: the chemical component and its atomic percentage content of the alloy material are: Fe is 72.5 ~ 76.5%, Si 9
It is 0.8 ~ 1.2%, Co be 0.3 ~ 0.5%, Mo be 1.5 ~ 2%, Cr be 0.8 ~ 1.5%, P is that 1 ~ 2%, Y is that ~ 12%, B, which are 9 ~ 9.6%, Cu,
0.002 ~ 0.06%, remaining is inevitable impurity；The preparation method of the alloy material is: first by above-mentioned chemical component and its
Atomic percentage content ingredient is uniformly mixed, and vacuum metling is cast into master alloy ingot；Again by master alloy ingot remelting, got rid of using single roller
Band method spray is at amorphous band；Then it is heat-treated, high saturated magnetic induction Fe-based nanocrystalline magnetically soft alloy band is made.
The present invention has the characteristics that production cost is low and heat treatment process is easily achieved, product have high saturation induction density and
Low coercivity, use scope is wide, is particularly suitable for transformer and mutual inductor field.
But there is also following defects for the Fe-based amorphous band of the prior art: exciting power is larger, iron loss is higher, and thickness is very poor
Larger, the uniformity is low.
Summary of the invention
The problem to be solved in the present invention is against the above deficiency, to provide a kind of small Fe-based amorphous band of exciting power and its preparation
Method realizes following goal of the invention: reducing exciting power and iron loss, reduction thickness is very poor, improves the uniformity of band.
For achieving the above object, using following technical scheme:
The present invention provides a kind of exciting power small Fe-based amorphous band, the raw material of use include iron 91~92.8%, boron 2~
3%, silicon 1.8~2.2%, nickel 0.5~0.8%, copper 0.2~0.3%, tungsten 0.1~0.2%, manganese 0.1~0.2%, remaining is impurity.
The exciting power 0.21vA/ ㎏ ﹣ 0.225vA/ ㎏ of the amorphous band, iron loss are 0.15~0.17W/kg.It is described
2.34~3.16A/m of dynamic coercivity of amorphous band, lamination coefficient are 0.88~0.91, and thickness is very poor (thickness mean error)
It is 0.5~0.6 micron.
Operating temperature range -55~180 DEG C of the amorphous band, 1900~2000MPa of tensile strength.
A kind of preparation method of the small Fe-based amorphous band of exciting power, includes the following steps；
Step 1, melting
The raw material of use are using available regenerated resources, and waste and old steel and transformer core etc., melting makes it again
Ingredient reaches iron content 91-92.8%, boron 2-3%, silicon 1.8-2.2%, nickel 0.5-0.8%, copper 0.2-0.3%, tungsten 0.1-0.2%, manganese
0.1-0.2%, remaining is impurity.
Mixed material is imported in smelting furnace, melting is carried out using smelting furnace and logical argon gas protects melt, smelting furnace adds
Hot temperature is 1250 DEG C；Smelting furnace power is 3000kw, and the capacity of smelting furnace is 6 tons；Smelting time is 50-60min.
Use electric furnace induction coil magnetic strength agitation molten iron with sharp deslagging degasification when melting, electric furnace frequency is 500Hz.
Step 2, heat preservation
Argon gas protection melt is kept the temperature and rushed using heat preservation rising pouring furnace, and the temperature for controlling heat preservation is 1450 DEG C.
Step 3, spray band
Rising pouring enters spray belt bag after hot-metal insulating, and molten iron is controlled by automatic control system, is sprayed onto cooling by the nozzle of spray belt bag
On roller, Fe-based amorphous band is formed, spray band temperature is 1450 DEG C, nozzle distance chill roll 0.2mm；Obtained Fe-based amorphous band
With a thickness of 0.02mm, width can according to need control in 142mm, 170mm or 213mm.
The chill roll specification used is copper sheathing outside chill roll for 1600- 2000*380-400, and copper sheathing material is beryllium
Copper ZQAL9-4-4-2；28-32 DEG C of cold in-water temperature, 35-36 DEG C of leaving water temperature of control.
Step 4, strip coiling
When strip coiling temperature T≤140 DEG C, rise stress 300N, and at soaking time 20 minutes, band has excellent magnetic property,
Magnetostriction is minimum, is 20-21 × 10-6.Amorphous transformer noise is big compared with traditional silicon steel transformer, and noise reduction is problem.Iron core
Magnetostriction vibration is to cause transformer noise principal element.The production of Fe-based amorphous band during winding winding temperature 70
DEG C of -140 DEG C temperature it is interior, the iron loss and exciting power of band are increased with temperature and are increased, and wherein iron loss is in 0.15w/kg ﹣
Within the scope of 0.17w/ ㎏, exciting power is within the scope of 0.21vA/ ㎏ ﹣ 0.225vA/ ㎏, the iron of band when temperature is higher than 140 DEG C
Damage, exciting power present to steeply rise makes the magnetic property of band unstable very much fastly because rising.In effective coiling temperature range
It is interior to keep the temperature 20min after volume, it batches and rises by the range of stress in 300N ﹣ 400N, the coefficient of dilatation with greetings of band under each coiling temperature
It is relatively small, and the magnetostriction coefficient of time extension band becomes after reaching critical numerical value as the temperature rises under the same terms
In constant.Therefore band batches 140 DEG C of parameter；300N； t=20min；Corresponding magnetostriction coefficient 20-21 × 10-6。
Compared with prior art, technical solution of the present invention has the advantages that
(1) the exciting power 0.21vA/ ㎏ ﹣ 0.225vA/ ㎏ of the Fe-based amorphous band of the present invention, iron loss are 0.15w/kg ﹣ 0.17w/
㎏。
(2) 2.34~3.16A/m of Fe-based amorphous band dynamic coercivity of the invention, lamination coefficient is 0.88~0.91, thick
Spending very poor (thickness mean error) is 0.5~0.6 micron.
(3) Fe-based amorphous -55~180 DEG C of band operating temperature range of the present invention, 1900~2000MPa of tensile strength.
Specific embodiment
A kind of small Fe-based amorphous band and preparation method thereof of the exciting power of embodiment 1
Preparation method:
Step 1, melting
The raw material of use are to utilize available regenerated resources, waste and old steel and transformer core etc., again melting, and examine
Melt constituent content is surveyed, control content: iron 91%, boron 2%, silicon 1.8%, nickel 0.5%, copper 0.2%, tungsten 0.1%, manganese 0.1%, remaining is
Impurity.
Melting is carried out using smelting furnace and logical argon gas protects melt, the heating temperature of smelting furnace is 1250 DEG C；Smelting furnace function
Rate is 3000kw, and the capacity of smelting furnace is 6 tons；Smelting time is 50min.
Use electric furnace induction coil magnetic strength agitation molten iron with sharp deslagging degasification when melting, electric furnace frequency is 500Hz.
Step 2, heat preservation
It is kept the temperature using heat preservation rising pouring furnace, whole process, which is filled, in holding furnace sets argon gas protection melt, and the temperature for controlling heat preservation is 1450
℃。
Step 3, spray band
Rising pouring enters spray belt bag after hot-metal insulating, and molten iron is controlled by automatic control system, is sprayed onto cooling by the nozzle of spray belt bag
On roller, Fe-based amorphous band is formed, spray band temperature is 1450 DEG C, nozzle distance chill roll 0.2mm；Obtained Fe-based amorphous band
With a thickness of 0.029mm, width can according to need control in 142mm, 170mm or 213mm.
The chill roll specification used is copper sheathing outside chill roll for 1600*380, and copper sheathing material is beryllium copper ZQAL9-4-4-
2；28-30 DEG C of cold in-water temperature, 35-36 DEG C of leaving water temperature of control；Chill roll is rotated to take-up roller opposite direction, and molten iron passes through
Nozzle is sprayed on roller above copper roller, and band is set out through roller bottom to take-up roller direction, be stripped, cool down, detecting, pressure regulation send to
Take-up roller.Cooling copper roller revolving speed is controlled by control system；Control and the positional relationship of nozzle form amorphous ribbon to meet molten steel
The condition of material.
Step 4, strip coiling
Strip coiling temperature T≤140 DEG C, rise stress 300N, and at soaking time 20 minutes, band has excellent magnetic property, magnetic
Causing coefficient of dilatation is 21 × 10-6。
The Fe-based amorphous band of preparation: exciting power 0.21vA/ ㎏, the iron loss 0.16W/kg of the amorphous band are moved
State coercivity 3.16A/m, lamination coefficient are 0.88, and thickness very poor (thickness mean error) is 0.6 micron.
A kind of small Fe-based amorphous band and preparation method thereof of the exciting power of embodiment 2
The raw material of use include iron 92.8%, boron 3%, silicon 2.2%, nickel 0.8%, copper 0.3%, tungsten 0.2%, manganese 0.2%, remaining is miscellaneous
Matter.
Preparation method:
Step 1, melting
(1) condiment
The raw material of use are using regenerated resources, and waste and old steel and transformer core etc., melting reaches its ingredient again
To iron content 92.8%, boron 3%, silicon 2.2%, nickel 0.8%, copper 0.3%, tungsten 0.2%, manganese 0.2%, remaining is impurity.
(2) low smelting heat
Raw material are first imported in low smelting heat furnace, melting heat size is 6 tons.
Melting is carried out using low smelting heat furnace and logical argon gas protects melt, smelting furnace heating rate is controlled in 30 DEG C/min,
1000 DEG C are warming up to, then, keeps the temperature 5min；It then proceedes to heat up, is warming up to 1250 DEG C with the rate of 25 DEG C/min；Continue melting
50min。
Use electric furnace induction coil magnetic strength agitation molten iron with sharp deslagging degasification when melting, electric furnace frequency is 500hz.
Step 2, heat preservation
It is kept the temperature using heat preservation rising pouring furnace, the temperature for controlling heat preservation is 1450 DEG C, whole nitrogen filled protection melt.
Step 3, spray band
Rising pouring enters spray belt bag after hot-metal insulating, and molten iron is controlled by automatic control system, is sprayed onto cooling by the nozzle of spray belt bag
On roller, Fe-based amorphous band is formed, spray band temperature is 1450 DEG C, nozzle distance chill roll 0.2mm；Obtained Fe-based amorphous band
With a thickness of 0.026mm, width can according to need control in 142mm, 170mm or 213mm.
The chill roll specification used is copper sheathing outside chill roll for 2000*400, and copper sheathing material is beryllium copper ZQAL9-4-4-
2；30-32 DEG C of cold in-water temperature, 35-36 DEG C of leaving water temperature of control；Chill roll is rotated to take-up roller opposite direction, and molten iron passes through
Nozzle is sprayed on roller above copper roller, and band is set out through roller bottom to take-up roller direction, be stripped, cool down, detecting, pressure regulation send to
Take-up roller.Cooling copper roller revolving speed is controlled by control system；Control and the positional relationship of nozzle form amorphous ribbon to meet molten steel
The condition of material.
Step 4, strip coiling
Strip coiling temperature T≤140 DEG C, rise stress 300N, and at soaking time 20 minutes, band has excellent magnetic property, magnetic
Causing coefficient of dilatation is 20 × 10-6。
The Fe-based amorphous band of preparation: exciting power 0.225VA/kg, iron loss 0.15W/kg；Dynamic coercivity 2.34A/
M, lamination coefficient are 0.91, and thickness very poor (thickness mean error) is 0.5 micron.
In addition to specified otherwise, percentage of the present invention is mass percent, and the ratio is mass ratio.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
It, for those skilled in the art, still can be with although describing the invention in detail with reference to the foregoing embodiments
It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in guarantor of the invention
Within the scope of shield.
Claims (9)
1. a kind of preparation method of the small Fe-based amorphous band of exciting power, it is characterised in that: including melting step；
The melting includes: to carry out melting using silicon-controlled 12 pulse intermediate frequency series-connection power supplies smelting furnace, and electric furnace is used when melting
Induction coil magnetic strength stirs molten iron, and electric furnace frequency is 300~500Hz, and smelting time is 50~60min.
2. a kind of preparation method of the small Fe-based amorphous band of exciting power according to claim 1, it is characterised in that: institute
The melting stated: electric furnace frequency is 500Hz, smelting time 50min.
3. a kind of preparation method of the small Fe-based amorphous band of exciting power according to claim 1, it is characterised in that: institute
The preparation method stated further includes incubation step；The heat preservation: the temperature for controlling holding furnace is 1440~1450 DEG C.
4. a kind of preparation method of the small Fe-based amorphous band of exciting power according to claim 1, it is characterised in that: institute
The heat preservation stated: the temperature of molten steel is 1450 DEG C when control heat preservation spray band.
5. a kind of small Fe-based amorphous band of exciting power, it is characterised in that: the raw material that the amorphous band uses include
Iron, boron, silicon, nickel, copper, tungsten, manganese.
6. a kind of small Fe-based amorphous band of exciting power according to claim 5, it is characterised in that: the amorphous ribbon
The raw material that material uses are using regenerated resources, and waste and old steel and transformer core etc., melting reaches its ingredient again
Iron content 91~92.8%, boron 2~3%, silicon 1.8~2.2%, nickel 0.5~0.8%, copper 0.2~0.3%, tungsten 0.1~0.2%, manganese 0.1~
0.2%, remaining is impurity.
7. a kind of small Fe-based amorphous band of exciting power according to claim 5, it is characterised in that: the amorphous band
Exciting power 0.21vA/ ㎏ ﹣ 0.225vA/ ㎏, iron loss be 0.15~0.17W/kg.
8. a kind of small Fe-based amorphous band of exciting power according to claim 5, it is characterised in that: the amorphous band
2.34~3.16A/m of dynamic coercivity, lamination coefficient be 0.88~0.91, very poor thickness is 0.5~0.6 micron.
9. a kind of small Fe-based amorphous band of exciting power according to claim 5, it is characterised in that: the amorphous band
Operating temperature range -55~180 DEG C, 1900~2000MPa of tensile strength.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109594006A (en) * | 2018-12-10 | 2019-04-09 | 国网上海市电力公司 | The method for recycling the smelting iron-based amorphous master alloy of amorphous transformer core |
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2018
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| CN1221040A (en) * | 1998-09-25 | 1999-06-30 | 山东大学 | Giant magnetoresistance anti-effect non-crystalline thin-band material and preparation method thereof |
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| JP2005068451A (en) * | 2003-08-27 | 2005-03-17 | Japan Science & Technology Agency | Fe BASED SOFT MAGNETIC BULK AMORPHOUS-NANOCRYSTAL DUAL PHASE ALLOY, AND ITS PRODUCTION METHOD |
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| CN109594006A (en) * | 2018-12-10 | 2019-04-09 | 国网上海市电力公司 | The method for recycling the smelting iron-based amorphous master alloy of amorphous transformer core |
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