CN101887800A - Manufacturing method of amorphous alloy iron cores - Google Patents
Manufacturing method of amorphous alloy iron cores Download PDFInfo
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- CN101887800A CN101887800A CN2009100513800A CN200910051380A CN101887800A CN 101887800 A CN101887800 A CN 101887800A CN 2009100513800 A CN2009100513800 A CN 2009100513800A CN 200910051380 A CN200910051380 A CN 200910051380A CN 101887800 A CN101887800 A CN 101887800A
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Abstract
The invention discloses a manufacturing method of amorphous alloy iron cores, which comprises the following steps of: (1) cutting and overlapping an amorphous alloy belt material to obtain iron core overlapped sheets comprising multiple groups of amorphous alloy sheets; (2) suiting and molding the iron core overlapped sheets so that the two ends of the amorphous alloy sheets of each group are jointed to obtain molded iron cores; (3) carrying out magnetic heat treatment on the molded iron cores; and (4) coating the surfaces of the molded iron cores. The amorphous alloy iron cores produced by using the method can meet the requirements of the transformers with different capacities, has convenient operation and high degree of automation, is suitable for the batch production of the amorphous alloy transformer iron core, is beneficial to the popularization and application of the novel energy-saving products of the transformers, and greatly relieves the conflict of the domestic electricity overload.
Description
Technical field
The present invention relates to transformer core and make the field, particularly relate to a kind of manufacturing method of amorphous alloy iron cores.
Background technology
Non-crystaline amorphous metal is to add a certain amount of forming of glass agent in molten metal, under the condition of high-temperature fusion, utilizes the quick quenching casting of ceramic nozzle of narrow slit to form.Non-crystaline amorphous metal has the similar characteristics of glass structure, make it not only have excellent mechanical property, physical property and chemical property, the new technology that what is more important adopts this rapid quench method to produce non-crystaline amorphous metal reduces by 6～8 procedures than cold rolled silicon steel blade technolgy, but energy savings consumes 60%～80%, be a kind of energy-conservation, save time, metallurgical means efficiently.And non-crystaline amorphous metal has low coercive force and high magnetic permeability, and it is starkly lower than directional cold-rolling silicon steel disc on core loss, and its no-load loss can reduce about 75%.So replacing silicon steel sheet to make transformer core with non-crystaline amorphous metal is one of energy-saving and cost-reducing main means of current grid equipment.
Because the thickness of amorphous alloy ribbon is extremely thin, be about 1/10th of silicon steel sheet, so amorphous alloy material extremely is convenient to make reel iron core transformer.At present, the primary structure of iron core has monocyclic volume iron core and dock iron core.Monocyclic volume iron core is that band is directly turned to annular continuously, need not cut, and winding directly is wound on the annular core, this iron core is because seldom stressed, and performance is preferable, but adopts this structure to need specialized apparatus, time-consuming, and only be applicable to the transformer of low capacity.Each layer band termination of butt joint iron core is butt joint, interface is more smooth, and the following yoke thickness at interface place can be greater than other three limits, but needs the annular core that will spool by final interface position integral cutting radially, make corresponding Processes and apparatus comparatively complicated, and make the corresponding increase of cost.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of manufacturing method of amorphous alloy iron cores, to improve the disappearance of prior art.
The invention provides a kind of manufacture method of amorphous alloy iron core, may further comprise the steps: (1) cutting and stacked amorphous alloy strips obtain comprising the core lamination stacks of organizing amorphous alloy films more; (2) described core lamination stack is carried out suit and moulding, make to obtain the moulding iron core by every group of amorphous alloy film two ends overlap joint; (3) described moulding iron core is carried out magnetic-field heat treatment; (4) described moulding iron core is carried out the surface and be coated with envelope.
Further, described step (1) comprising: the cutting amorphous alloy strips obtains the multitool amorphous alloy film; In cutting,, constitute one group of amorphous alloy film by the stacked amorphous alloy film of cutter; Increase cut lengths, continue above two steps, obtain being stacked and placed on the other one group of amorphous alloy film outside the group amorphous alloy film; Repeat above step, obtain stacked successively many groups amorphous alloy film, and should constitute a cover amorphous alloy film by many group amorphous alloy films, and from inside to outside, the size of every group of amorphous alloy film increases gradually; Repeat above step, obtain stacked successively many covers amorphous alloy film; Cutting and stacked last cover amorphous alloy film are stacked and placed on outside the above many cover amorphous alloy film, obtain described core lamination stack.
Further, described core lamination stack comprises 5 to 30 cover amorphous alloy films.
Further, described last cover amorphous alloy film includes only one group of amorphous alloy film, and every cover amorphous alloy film comprises 3 to 10 groups of amorphous alloy films in it.
Further, described every group of amorphous alloy film comprises 2 to 3 cutter amorphous alloy films.
Further, have corresponding increment and spacing between described every cutter and every group of amorphous alloy film.
Further, on the same group in the amorphous alloy film, the increment between every cutter amorphous alloy film is 1 to 2mm; In the cover amorphous alloy film, the increment between adjacent every group of amorphous alloy film is 3 to 7mm; And increase successively from inside to outside.
Further, the group spacing between the described amorphous alloy film is 10 to 25mm.
Further, described step (2) comprising: described core lamination stack is moved to workbench; Respectively organize the two ends of amorphous alloy film from inside to outside by the group overlap joint; Adjust and respectively organize amorphous alloy film, make the joining seam size of respectively organizing amorphous alloy film reach designing requirement, finish the suit of core lamination stack; The core lamination stack of finishing suit peripheral coat with amorphous alloy strips with loose silicon steel sheet, and silicon steel sheet latched in described core lamination stack periphery; Inside and outside core lamination stack, place template, and tie up whole core lamination stack, obtain the moulding iron core.
Further, the joining seam of described amorphous alloy film is of a size of 8 to 16mm.
Further, the joining seam of described amorphous alloy film is of a size of 10 to 12mm.
Further, the space of the adjacent joint of described amorphous alloy film is 1 to 2mm.
Further, described step (3) the magnetic-field heat treatment mode that adopts is longitudinal magnetic field heat treatment.
Further, described step (3) comprising: described moulding iron core is placed in the heat-treatment furnace; Be incubated certain hour after furnace inner environment is heated to design temperature; At intensification, insulation, temperature-fall period described moulding iron core is applied a longitudinal magnetic field; To the cooling of lowering the temperature of described moulding iron core.
Further, described step (3) the magnetic-field heat treatment mode that adopts is resultant field heat treatment in length and breadth.
Further, described step (3) comprising: described moulding iron core is placed in the heat-treatment furnace; Be incubated certain hour after furnace inner environment is heated to design temperature; At intensification, holding stage described moulding iron core is applied a transverse magnetic field; To the cooling of lowering the temperature of described moulding iron core; At temperature-fall period described moulding iron core is applied a longitudinal magnetic field.
Further, described heat treatment design temperature is 200 to 500 ℃.
Further, described heat treatment design temperature is 300 to 400 ℃
Further, described temperature retention time is 20 to 240min.
Further, described temperature retention time is 100 to 150min.
Further, the cooldown rate in the described cool down is 0.5 to 25 ℃/min.
Further, the cooldown rate in the described cool down is 5 to 10 ℃/min.
Further, described magnetic field intensity is 200 to 2000A/m.
Further, described magnetic field intensity is 1000 to 1500A/m.
Further, described step (4) comprising: proofread and correct and clear up described moulding iron core; Brushing binding agent on end face of described moulding iron core; Toast described moulding iron core, make adhesive cures; Stand up described moulding iron core; Brushing binding agent on described another end face of moulding iron core; Toast described moulding iron core, make adhesive cures, wherein said binding agent does not cover the lap-joint of described moulding iron core.
Further, described baking temperature is 100 to 150 ℃, and stoving time is 10 to 45min.
Further, described binding agent is epoxy resin or glue.
Further, the viscosity of described glue is less than 5000cps.
Further, the viscosity of described glue is less than 2000cps.
The manufacture method of amorphous alloy transformer core provided by the present invention comprises that mainly stacked, the suit moulding of cutting, magnetic-field heat treatment and surface are coated with steps such as envelope.Utilize method provided by the invention to produce amorphous alloy iron core, can satisfy the demand of different capabilities transformer, and easy to operate, automaticity is high, suitable batch production amorphous alloy transformer core, help applying of transformer energy saving new product, alleviate the contradiction of present China electricity consumption excess load greatly.
Description of drawings
Fig. 1 is the schematic flow sheet of the manufacture method of the amorphous alloy iron core that one embodiment of the invention provided;
Fig. 2 is the stacked schematic flow sheet of the cutting that one embodiment of the invention provided;
Fig. 3 is the structural representation of the core lamination stack that one embodiment of the invention provided;
Fig. 4 is the schematic flow sheet of the suit moulding that one embodiment of the invention provided;
Fig. 5 is the schematic flow sheet of the magnetic-field heat treatment that one embodiment of the invention provided;
Fig. 6 is the schematic flow sheet of the magnetic-field heat treatment that another embodiment of the present invention provided;
Fig. 7 and Fig. 8 are respectively the schematic diagram of fixed and distributed joining seam structure iron core.
Embodiment
For technical characterictic of the present invention is become apparent, below in conjunction with specific embodiment, the present invention will be further described.
Please refer to Fig. 1, it is the schematic flow sheet of the manufacture method of the amorphous alloy iron core that one embodiment of the invention provided, and as shown in the figure, may further comprise the steps:
S1: cutting and stacked amorphous alloy strips obtain comprising the core lamination stacks of organizing amorphous alloy films more;
S2: core lamination stack is carried out suit and moulding, make to obtain the moulding iron core by every group of amorphous alloy film two ends overlap joint;
S3: the moulding iron core is carried out magnetic-field heat treatment;
S4: the moulding iron core is carried out the surface be coated with envelope.
As seen, the manufacture method of this amorphous alloy iron core comprises that mainly stacked, the suit moulding of cutting, magnetic-field heat treatment and surface are coated with steps such as envelope.Utilize this method can make a kind of seam bridging type coiled core that has, make the overlapped points of amorphous alloy strips be distributed in the following yoke place of iron core, thereby make things convenient for iron core to open suit coil.Specifically describe as follows:
One, cutting stacked (step S1)
Please refer to Fig. 2, it is the stacked schematic flow sheet of the cutting that one embodiment of the invention provided, and as shown in the figure, may further comprise the steps:
S11: the cutting amorphous alloy strips obtains the multitool amorphous alloy film;
S12: in cutting,, constitute one group of amorphous alloy film by the stacked amorphous alloy film of cutter;
S13: increase cut lengths, continue above two steps, obtain being stacked and placed on the other one group of amorphous alloy film outside the group amorphous alloy film;
S14: repeat above step, obtain stacked successively many groups amorphous alloy film, and should constitute cover amorphous alloy films by many group amorphous alloy films, and from inside to outside, the size of every group of amorphous alloy film increases gradually;
S15: repeat above step, obtain stacked successively many covers amorphous alloy film;
S16: cutting and stacked last cover amorphous alloy film, be stacked and placed on outside the above many cover amorphous alloy film, obtain described core lamination stack.
So, whole core lamination stack just can move to workbench and prepare moulding after size is finished according to the rules, please refer to Fig. 3, and it just is the structural representation of core lamination stack.
Particularly, automatic feeding is delivered to amorphous alloy strips on the cutting bed of automatic gas cutting machine.Cutting with stacked before, at first a microscope carrier 10 (being generally stainless steel flat plate) is placed at the lamination platform below cutting bed middle part.Thereby the amorphous alloy film that cutting obtains just drops on this microscope carrier, and moves under the effect of this microscope carrier, guarantees that the amorphous alloy film after the change cut lengths falls within on this microscope carrier by designing requirement.
Usually, core lamination stack comprises 5～30 cover amorphous alloy films 20.Every cover amorphous alloy film 20 comprises 3～10 groups of amorphous alloy films 21,22,23,24......, but last cover amorphous alloy film 30 includes only one group of amorphous alloy film 31, is the integral body of an overlap joint to guarantee whole iron core.And every group of amorphous alloy film comprises 2～3 cutter amorphous alloy films.Because every from inside to outside cutter and every group of amorphous alloy film are when being overlapped to form iron core, need the variation of a size, so have corresponding increment and spacing between every cutter and every group of amorphous alloy film.Usually, on the same group in, the increment between every cutter amorphous alloy film is 1～2mm; In the cover amorphous alloy film, the increment between adjacent every group of amorphous alloy film is 3～7mm; And increase successively from inside to outside; And the group spacing between the amorphous alloy film is generally 10～25mm.
Usually, in the stacked process of cutting, utilize automatic gas cutting machine that amorphous alloy strips is cut automatically with stacked automatically, utilize control able to programme (PLC) mode can realize splicing progression, overlapping mode, air-gap separation, the adjustment of grip assembly increment, thereby guarantee the high automation and the high reliability of cutting technique.
Two, suit moulding (step S2)
With the stacked good amorphous alloy strips of cutting, promptly core lamination stack as shown in Figure 3 moves to workbench from cutting zone, and core lamination stack is carried out the suit moulding.Successively parcel is respectively organized amorphous alloy film from inside to outside, finishes until the whole suits of all amorphous alloy films; Amorphous alloy film with each group cover of scraper adjustment installs guarantees that respectively organizing amorphous alloy film joining seam size reaches design size, and usually, the joining seam size is generally 8～16mm, and preferred dimensions is 10～12mm; The space of adjacent joint is generally 1～2mm; Wrap one deck silicon steel sheet identical vertically in the periphery of iron core, and snap close is lived with the amorphous alloy strips width; Utilize aids such as tool and mould and hydraulic pressure support respectively to place 4 templates, and utilize the ladle band to tie up whole iron core in the iron core inner peripheral; The moulding iron core is positioned on the annealing frame, waits for annealing.
Please refer to Fig. 4, more than the summary, that described suit forming step overview is as follows:
S21: core lamination stack is moved to workbench;
S22: the two ends of respectively organizing amorphous alloy film from inside to outside by the group overlap joint;
S23: adjust and respectively organize amorphous alloy film, make the joining seam size of respectively organizing amorphous alloy film reach designing requirement, finish the suit of core lamination stack;
S24: the core lamination stack of finishing suit peripheral coat with amorphous alloy strips with loose silicon steel sheet, and silicon steel sheet latched in described core lamination stack periphery;
S25: inside and outside core lamination stack, place template, and tie up whole core lamination stack, obtain the moulding iron core.
Three, magnetic-field heat treatment (step 3)
Amorphous alloy strips and band cutting, curls, very easily produces stress in the processing, transportation in the chilling preparation process, thereby influences the magnetic property of amorphous alloy iron core.In order to eliminate the stress in the iron core, improve the performance of product, must heat-treat iron core.
Usually iron core will be heated to higher temperature, but should be lower than the crystallization temperature of non-crystaline amorphous metal, the iron core temperature is incubated certain hour after reaching design temperature, cools then and comes out of the stove.Ordinary circumstance, according to the difference of the raw materials used band of iron core, the temperature range that heat treatment is adopted is 200～500 ℃, preferably the temperature range of Cai Yonging is approximately 300～400 ℃.After the iron core temperature was elevated to design temperature, the general temperature retention time that adopts was 20～240min, and preferably the temperature retention time of Cai Yonging is 100～150min.Cooldown rate scope in the cool down is generally 0.5～25 ℃/min, and preferably the cooldown rate scope of Cai Yonging is 5～10 ℃/min.
For effect that increases destressing and the noise that effectively reduces iron core, usually in the heat treated longitudinal magnetic field that applies simultaneously.This longitudinal magnetic field can form by the energising cable that passes the iron core mesopore, also can utilize section to replace cable for the copper bar of rectangle, copper bar should pass the positive center of iron core, so that the magnetic line of force that magnetic field produces distributes in iron core is more even, and the effect of increase destressing.The size of copper bar section is generally 10mm * 80mm, and electrical current is a direct current, and the magnetic field intensity of longitudinal magnetic field is generally 200～2000A/m, and preferably the magnetic field intensity of Cai Yonging is 1000～1500A/m.
Obtain the process of magnetic-field heat treatment more than the summary, as shown in Figure 5, may further comprise the steps:
S31: the moulding iron core is placed in the heat-treatment furnace;
S32: be incubated certain hour after furnace inner environment is heated to design temperature;
S33: the moulding iron core is applied a longitudinal magnetic field at intensification, insulation, temperature-fall period;
S34: to the cooling of lowering the temperature of moulding iron core.
In order to improve the effect of magnetic-field heat treatment, optimize the magnetic property of amorphous alloy iron core, also can adopt resultant field heat treatment in length and breadth, promptly apply transverse magnetic field at intensification, holding stage, apply longitudinal magnetic field at temperature-fall period, thereby make full use of the advantage in different directions magnetic field, improve the magnetic property of amorphous iron core.As Fig. 6, specifically may further comprise the steps:
S31 ': the moulding iron core is placed in the heat-treatment furnace;
S32 ': be incubated certain hour after furnace inner environment is heated to design temperature;
S33 ': described moulding iron core is applied a transverse magnetic field at intensification, holding stage;
S34 ': to the cooling of lowering the temperature of moulding iron core;
S35 ': described moulding iron core is applied a longitudinal magnetic field at temperature-fall period.
Four, the surface is coated with envelope (step 4)
Amorphous alloy film annealing back intensity reduces, embrittlement forms the iron filings fragment easily, if come off in the online snare process of assembling of these fragments attached on the coil, perhaps sneak in the insulating oil in the transformer housing, then can reduce the insulation property of transformer, more serious situation may be short-circuited and burn transformer.Therefore, come off from iron core for preventing amorphous iron filings fragment, should be coated with the front cover layer binder in the iron core end face surface, binding agent can also be fixing as a whole with iron core simultaneously, prevents the distortion of lamination landing or iron core.
Before the iron core surface is coated with envelope, proofread and correct iron core with angle square earlier, comprise the correction of core window size and the alignment of iron core, make its size, shape compliant.
The iron core surface is coated with the used binding agent of envelope can select epoxy resin for use.Before being coated with envelope, use the dust of brush cleaning iron core end face surface earlier; With hairbrush or scraper even brushwork epoxy resin on end face of iron core, the thickness of epoxy resin is less than 2mm again; Iron core pushed in the baking oven toast, make epoxy resin cure, baking temperature is generally 100～150 ℃, and stoving time is generally 10～45min; Treat behind the resin solidification iron core to be shifted out baking oven, stand up iron core, the surface of carrying out the other end is coated with envelope, and its step is the same.The area that epoxy resin is coated with envelope can cover other the whole face areas except that iron core joining seam side; For design the iron core of oilhole is arranged, only need the cover part face area.
The iron core surface is coated with the used binding agent of envelope can select glue for use.Be coated with the envelope process that is coated with that the envelope step is similar to epoxy resin, the viscosity of glue is generally less than 5000cps, and the viscosity of glue is preferably less than 2000cps.
As seen, utilize the inventive method can make a kind of seam bridging type coiled core that has.Need amorphous band to be cut into preseting length according to the core design size, and successively accumulate stacked, the amorphous band cut end of each length overlaps mutually, make cut end form a series of joining seams at the locating area of iron core, joining seam is the yoke place under iron core, make things convenient for iron core to open suit coil, iron core whole for around approximate rectangular with fillet.According to customer demand and designing requirement, this iron core can be divided into two kinds of structures, and promptly fixed joining seam structure iron core and distributed joining seam structure iron core are respectively as Fig. 7 and shown in Figure 8.
Fig. 7 is the schematic diagram of fixed joining seam structure iron core, described iron core is made up of many covers amorphous alloy film 20, every cover 20 comprises the non-alloy wafer 21 of many groups again, 22,23, every group of amorphous alloy film 21,22,23 quantity is the 5-30 sheet, every group 21,22, amorphous alloy film in 23 has close length, respectively organize amorphous alloy film 21 from inside to outside, 22,23 length increases one by one, last group amorphous alloy film is identical with the group number of interior every cover amorphous sheet 20, its group number and tricks are determined according to the core design size, each group in every cover amorphous alloy film 20 is overlapped mutually by the stacked amorphous alloy strips bending of multi-disc and forms, and forms the joining seam structure 30 of a series of types that are in line in fixed area.
Fig. 8 is the schematic diagram of distributed joining seam structure iron core, described iron core is made up of many covers amorphous alloy film 20 ', every cover 20 ' comprises some groups of amorphous alloy films 21 ' again, 22 ', 23 ', every group of amorphous alloy film 21 ', 22 ', 23 ' quantity is the 5-30 sheet, every group 21 ', 22 ', amorphous alloy film in 23 ' has close length, respectively organize amorphous alloy film 21 ' from inside to outside, 22 ', 23 ' length increases one by one, each group in every cover amorphous alloy film 20 ' is overlapped mutually by the stacked amorphous alloy strips bending of multi-disc and forms, the group number that every from inside to outside cover amorphous alloy film comprises increases by one group successively, its group number and tricks are determined according to the core design size, make the joining seam zone of cut end stagger mutually, constituted distributed joining seam structure 30 '.
, be not that protection scope of the present invention should be as the criterion with the scope that claims are contained in order to qualification the present invention below only for for example.
Claims (29)
1. the manufacture method of an amorphous alloy iron core is characterized in that, may further comprise the steps:
(1) cutting and stacked amorphous alloy strips obtain comprising the core lamination stacks of organizing amorphous alloy films more;
(2) described core lamination stack is carried out suit and moulding, make to obtain the moulding iron core by every group of amorphous alloy film two ends overlap joint;
(3) described moulding iron core is carried out magnetic-field heat treatment;
(4) described moulding iron core is carried out the surface and be coated with envelope.
2. the manufacture method of amorphous alloy iron core according to claim 1 is characterized in that, described step (1) comprising:
The cutting amorphous alloy strips obtains the multitool amorphous alloy film;
In cutting,, constitute one group of amorphous alloy film by the stacked amorphous alloy film of cutter;
Increase cut lengths, continue above two steps, obtain being stacked and placed on the other one group of amorphous alloy film outside the group amorphous alloy film;
Repeat above step, obtain stacked successively many groups amorphous alloy film, and should constitute a cover amorphous alloy film by many group amorphous alloy films, and from inside to outside, the size of every group of amorphous alloy film increases gradually;
Repeat above step, obtain stacked successively many covers amorphous alloy film;
Cutting and stacked last cover amorphous alloy film are stacked and placed on outside the above many cover amorphous alloy film, obtain described core lamination stack.
3. the manufacture method of amorphous alloy iron core according to claim 2 is characterized in that, described core lamination stack comprises 5 to 30 cover amorphous alloy films.
4. the manufacture method of amorphous alloy iron core according to claim 3 is characterized in that, described last cover amorphous alloy film includes only one group of amorphous alloy film, and every cover amorphous alloy film comprises 3 to 10 groups of amorphous alloy films in it.
5. the manufacture method of amorphous alloy iron core according to claim 4 is characterized in that, described every group of amorphous alloy film comprises 2 to 3 cutter amorphous alloy films.
6. the manufacture method of amorphous alloy iron core according to claim 5 is characterized in that, has corresponding increment and spacing between described every cutter and every group of amorphous alloy film.
7. the manufacture method of amorphous alloy iron core according to claim 6 is characterized in that,
On the same group in the amorphous alloy film, the increment between every cutter amorphous alloy film is 1 to 2mm;
In the cover amorphous alloy film, the increment between adjacent every group of amorphous alloy film is 3 to 7mm; And increase successively from inside to outside.
8. the manufacture method of amorphous alloy iron core according to claim 6 is characterized in that, the group spacing between the described amorphous alloy film is 10 to 25mm.
9. the manufacture method of amorphous alloy iron core according to claim 1 is characterized in that, described step (2) comprising:
Described core lamination stack is moved to workbench;
Respectively organize the two ends of amorphous alloy film from inside to outside by the group overlap joint;
Adjust and respectively organize amorphous alloy film, make the joining seam size of respectively organizing amorphous alloy film reach designing requirement, finish the suit of core lamination stack;
The core lamination stack of finishing suit peripheral coat with amorphous alloy strips with loose silicon steel sheet, and silicon steel sheet latched in described core lamination stack periphery;
Inside and outside core lamination stack, place template, and tie up whole core lamination stack, obtain the moulding iron core.
10. the manufacture method of amorphous alloy iron core according to claim 9 is characterized in that, the joining seam of described amorphous alloy film is of a size of 8 to 16mm.
11. the manufacture method of amorphous alloy iron core according to claim 9 is characterized in that, the joining seam of described amorphous alloy film is of a size of 10 to 12mm.
12. the manufacture method of amorphous alloy iron core according to claim 9 is characterized in that, the space of the adjacent joint of described amorphous alloy film is 1 to 2mm.
13. the manufacture method of amorphous alloy iron core according to claim 1 is characterized in that, described step
(3) adopting the magnetic-field heat treatment mode is longitudinal magnetic field heat treatment.
14. the manufacture method of amorphous alloy iron core according to claim 13 is characterized in that, described step (3) comprising:
Described moulding iron core is placed in the heat-treatment furnace;
Be incubated certain hour after furnace inner environment is heated to design temperature;
At intensification, insulation, temperature-fall period described moulding iron core is applied a longitudinal magnetic field;
To the cooling of lowering the temperature of described moulding iron core.
15. the manufacture method of amorphous alloy iron core according to claim 1 is characterized in that, described step (3) the magnetic-field heat treatment mode that adopts is resultant field heat treatment in length and breadth.
16. the manufacture method of amorphous alloy iron core according to claim 15 is characterized in that, described step (3) comprising:
Described moulding iron core is placed in the heat-treatment furnace;
Be incubated certain hour after furnace inner environment is heated to design temperature;
At intensification, holding stage described moulding iron core is applied a transverse magnetic field;
To the cooling of lowering the temperature of described moulding iron core;
At temperature-fall period described moulding iron core is applied a longitudinal magnetic field.
17. the manufacture method according to claim 14 or 16 described amorphous alloy iron cores is characterized in that, described heat treatment design temperature is 200 to 500 ℃.
18. the manufacture method of amorphous alloy iron core according to claim 17 is characterized in that, described heat treatment design temperature is 300 to 400 ℃
19. the manufacture method according to claim 14 or 16 described amorphous alloy iron cores is characterized in that, described temperature retention time is 20 to 240min.
20. the manufacture method of amorphous alloy iron core according to claim 19 is characterized in that, described temperature retention time is 100 to 150min.
21. the manufacture method according to claim 14 or 16 described amorphous alloy iron cores is characterized in that, the cooldown rate in the described cool down is 0.5 to 25 ℃/min.
22. the manufacture method of amorphous alloy iron core according to claim 21 is characterized in that, the cooldown rate in the described cool down is 5 to 10 ℃/min.
23. the manufacture method according to claim 14 or 16 described amorphous alloy iron cores is characterized in that, described magnetic field intensity is 200 to 2000A/m.
24. the manufacture method of amorphous alloy iron core according to claim 23 is characterized in that, described magnetic field intensity is 1000 to 1500A/m.
25. the manufacture method of amorphous alloy iron core according to claim 1 is characterized in that, described step (4) comprising:
Proofread and correct and clear up described moulding iron core;
Brushing binding agent on end face of described moulding iron core;
Toast described moulding iron core, make adhesive cures;
Stand up described moulding iron core;
Brushing binding agent on described another end face of moulding iron core;
Toast described moulding iron core, make adhesive cures, wherein
Described binding agent does not cover the lap-joint of described moulding iron core.
26. the manufacture method of amorphous alloy iron core according to claim 25 is characterized in that, described baking temperature is 100 to 150 ℃, and stoving time is 10 to 45min.
27. the manufacture method of amorphous alloy iron core according to claim 25 is characterized in that, described binding agent is epoxy resin or glue.
28. the manufacture method of amorphous alloy iron core according to claim 27 is characterized in that, the viscosity of described glue is less than 5000cps.
29. the manufacture method of amorphous alloy iron core according to claim 28 is characterized in that, the viscosity of described glue is less than 2000cps.
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