CN106783062B - A kind of disconnected yoke formula amorphous alloy stereo roll iron core and its manufacturing method - Google Patents
A kind of disconnected yoke formula amorphous alloy stereo roll iron core and its manufacturing method Download PDFInfo
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- CN106783062B CN106783062B CN201611122962.XA CN201611122962A CN106783062B CN 106783062 B CN106783062 B CN 106783062B CN 201611122962 A CN201611122962 A CN 201611122962A CN 106783062 B CN106783062 B CN 106783062B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/25—Magnetic cores made from strips or ribbons
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
- H01F41/022—Manufacturing of magnetic circuits made from strip(s) or ribbon(s) by winding the strips or ribbons around a coil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
- H01F41/0226—Manufacturing of magnetic circuits made from strip(s) or ribbon(s) from amorphous ribbons
Abstract
The invention discloses a kind of disconnected yoke formula amorphous alloy stereo roll iron cores and its manufacturing method, the rewinding material to include：Three disconnected yoke formula type amorphous alloy wound cores, each disconnected yoke formula type amorphous alloy wound core is surrounded by several groups of amorphous alloy core laminations, if every group of amorphous alloy core lamination includes dried layer amorphous alloy strips.Wherein, each disconnected yoke formula type amorphous alloy wound core includes：Two core limbs being oppositely arranged and two iron yokes being oppositely arranged, an iron yoke are equipped with joining seam portion, can open or close rewinding material through the joining seam portion.The core limb of three disconnected yoke formula type amorphous alloy wound cores is each perpendicular to horizontal plane placement, and the window that three disconnected yoke formula type amorphous alloy wound cores surround is equilateral triangle, the core limb is semicircle or class semicircle cylinder, and the core limb that each two is close to forms circular cylinder or approximate circle cylinder.Rewinding material of the present invention ensures that three-phase magnetic circuit is full symmetric isometric, greatly reduces magnetic resistance, and reduces special spooler installation investment.
Description
Technical field
The present invention relates to the manufacturing methods of transformer rewinding material, and in particular to a kind of disconnected yoke formula amorphous alloy stereo roll iron core
And its manufacturing method.
Background technology
The Main Trends of The Development of transformer technology is to improve reliability and energy saving, reduction damage using new material and new construction
This trend has been complied in consumption, succeeding in developing for amorphous alloy stereo roll iron core transformer.Amorphous alloy is also known as glassy metal,
It is a kind of no crystal structure alloy, is the soft magnetic materials of new generation to grow up in the past 30 years.Amorphous alloy uses fast rapid hardening
Gu technology directly solidifies to form thickness about from molten steel with planar flow high-speed continuous casting technique, with 1,000,000 DEG C per second of cooldown rate
The strip of 0.025mm.Amorphous alloy material has excellent electromagnetic property, and outstanding feature is high magnetic permeability, low iron loss, is made
For the transformer ratio silicon steel no-load transformer energy saving 60%~80% of core material manufacture.
However, at present the normal width dimensions of band only there are four types of, i.e. 120mm, 142mm, 170mm, 213mm, nothing
Method meets different capabilities Optimum Design of Transformers requirement.When needing different cross-sectional for the iron core of different capabilities, often can only
It is mainly realized by the thickness for the rectangular shape for changing core section, that is, utilizes the mode of two rows or three rows iron cores superposition
To realize.Therefore, iron core cross-sectional shape can only be rectangle one kind, it is impossible to rounded or polygon.Due to core limb and coil
Cross section is all rectangle, and the ability for causing its anti-sudden short circuit declines, it is necessary to structural strengthening and press-loading process etc. be taken to make up
Measure, and due to using plane wound core structure, seam causes the increase of noise more.
At present, the manufacturing process of conventional iron core is by the cutting of the amorphous band of standard bandwidth and by setting using automatic gas cutting machine
Parameter automatic laminating is counted, and the band for heap being folded followed by inner and outer template is shaped to anneal according to technological requirement after iron core
Processing carries out adhesive coated processing after iron core cooling to the both sides of the face of iron core.
The content of the invention
The object of the present invention is to provide a kind of disconnected yoke formula amorphous alloy stereo roll iron cores and its manufacturing method, the iron core to overcome
The shortcomings that continuous yoke three dimensional wound core coiling is difficult, it is ensured that three-phase magnetic circuit is full symmetric isometric, greatly reduces magnetic resistance, and
And the coiling of coil can be completed using existing coil winding machine, reduce special spooler installation investment, and can effective control coil
Each size, ensure that the electric property of transformer, need not be pressed shaping after the completion of coil winding, reduce manufacturing process mistake
Journey improves insulation performance, improves production efficiency.
In order to achieve the above object, the present invention provides a kind of disconnected yoke formula amorphous alloy stereo roll iron core, the rewinding material bags
Contain：Three disconnected yoke formula type amorphous alloy wound cores；Each disconnected yoke formula type amorphous alloy wound core is by several groups of amorphous alloy core laminations
It surrounds, if every group of amorphous alloy core lamination includes dried layer amorphous alloy strips.
Wherein, each disconnected yoke formula type amorphous alloy wound core includes：It two core limbs being oppositely arranged and opposite sets
Two iron yokes put；Wherein, an iron yoke is equipped with joining seam portion, can open or close rewinding material through the joining seam portion；
Wherein, the core limb of described three disconnected yoke formula type amorphous alloy wound cores is each perpendicular to horizontal plane placement, and three
The window that a disconnected yoke formula type amorphous alloy wound core surrounds is equilateral triangle, and the core limb is semicircle or class semicircular pillar
Body, the core limb that each two is close to form circular cylinder or approximate circle cylinder.
The gap spacing g in the adjacent joining seam portion is less than or equal to 1mm（Air gap can influence magnetic circuit, theoretically smaller
Better）.
The lap of splice L in the joining seam portion is 8mm ~ 16mm.
The present invention also provides a kind of manufacturing method of above-mentioned disconnected yoke formula amorphous alloy stereo roll iron core, this method is specific
Comprising：
The first step：The band of suitable normal width is selected, trapezoidal shape band is gone out according to technological requirement slitting and carries out horizontal stroke
It cuts, obtains multigroup amorphous alloy core lamination；
Second step：Starting is covered into inwardly one circle of bag, around multigroup amorphous alloy core lamination is covered on starting set, fixation is outermost
The amorphous alloy core lamination of layer, obtains rewinding material and makes its clamping, by outer layer silicon steel sheet bag in rewinding material outer layer, and will roll up iron
The heart pulls open outward a group by a group, with hydraulic pressure support along rewinding material is both horizontally and vertically strutted, takes the outermost band of rewinding material
The lap of splice L on head is 8mm ~ 16mm, and the gap spacing g in adjacent joining seam portion is less than or equal to 1mm；
3rd step：The core limb of rewinding material is positioned over parallel to horizontal plane in rewinding material shaping glue spreading apparatus, and according to
Annealing process under nitrogen protection anneals to rewinding material；
4th step：After to be annealed, glue spreading apparatus is molded to rewinding material coated with adhesive using rewinding material；
5th step：To be bonded dose of curing, the core limb of three rewinding materials and horizontal plane are placed, and three rewinding materials enclose
Into window for equilateral triangle, three rewinding materials are fixed to obtain disconnected yoke formula amorphous alloy stereo roll iron core.
It is preferred that in the 3rd step using described rewinding material shaping glue spreading apparatus can make the rewinding material after annealing its
The angle of lower surface and horizontal plane is into 30 °.
It is preferred that the rewinding material shaping glue spreading apparatus described in the 3rd step includes：Pedestal, be arranged on pedestal and perpendicular to
The baffle of pedestal, be arranged on end angled with pedestal and with baffle is adjacent on pedestal bottom plate and, parallel to bottom plate simultaneously
The backing plate being movably arranged on bottom plate；
Wherein, the annealing process specifically includes：
Step 3.1：The baffle of rewinding material shaping glue spreading apparatus is enclosed to the shapes and sizes put in rewinding material window is agreed with, it will
The window of rewinding material is nested with makes rewinding material be positioned on the rewinding material shaping glue spreading apparatus outside baffle, by rewinding material and volume
Iron core shaping glue spreading apparatus is placed in annealing furnace together；
Step 3.2：Furnace temperature is set to 340 ~ 380 DEG C, into the stage of a heating；
Step 3.3：Rewinding material reaches target temperature and just carries out converter temperature, and rewinding material enters a holding stage；
Step 3.4：It waits after keeping the temperature, rewinding material enters a cooling process.
The annealing process also includes：In step 3.2, rewinding material is applied when iron core temperature reaches 200 DEG C and is revolved
Turn magnetic field.
It is preferred that the binding agent described in the 4th step is epoxy resin, the thickness of the coated with adhesive is less than or equal to
1mm。
It is preferred that the method for the coated with adhesive described in the 4th step includes：
Step 4.1：It after shaping of annealing, treats that rewinding material is cooled to room temperature, props up rewinding material, will remove and be close to rewinding material
Joining seam portion backing plate outside its excess-three block backing plate extract out；
Step 4.2：Releasing agent is coated on the three pieces of backing plates extracted out in step 4.1, binding agent is coated uniformly on painting
Have on three pieces of backing plates of releasing agent, three pieces of backing plates for scribbling binding agent are put back on bottom plate, backing plate is made seamlessly to be pasted with bottom plate
It closes；
Step 4.3：The height of rewinding material is reduced to starting point, the lower surface of rewinding material is made to be bonded with backing plate, binding agent is attached
It on the lower surface of rewinding material, and by non-two turning coated with adhesive for taking head end of the lower surface of rewinding material, the volume
The lower surface coating of iron core finishes；
Step 4.4：The upper surface of rewinding material is cleaned, is applied in the core limb of the upper surface of rewinding material and the iron yoke in non-joining seam portion
Binding agent is covered, after to be bonded dose cures, the gluing operation of the rewinding material is completed.
Disconnected yoke formula amorphous alloy stereo roll iron core provided by the invention, has the following advantages：
（1）Amorphous alloy transformer meets iron core and the separately machined requirement of coil using resolving yoke rewinding material structure,
The quality level of iron core and coil is improved, shortens the production cycle of transformer；
（2）The three-phase magnetic circuit of iron core is full symmetric isometric, it can be ensured that and the balance of three phase supply greatly reduces magnetic resistance,
Exciting current significantly reduces, and iron core seam is reduced, product noise improvement；
（3）Amorphous alloy transformer iron core cross section approximate circle shape, the coil on such stem finally make also close to annular shape
Obtain amorphous alloy transformer is improved well in terms of anti-short circuit capability, reduces the temperature rise of hot spot of product, promotes transformation
The security reliability of device operation.
Description of the drawings
Fig. 1 is the top view of the disconnected yoke formula amorphous alloy stereo roll iron core of the present invention.
Fig. 2 is the structure diagram of the single rewinding material of the present invention.
Fig. 3 is that the rewinding material of the present invention is molded the structure diagram of glue spreading apparatus.
Specific embodiment
Technical scheme is described further below in conjunction with drawings and examples.
As shown in Figure 1, be a kind of top view of disconnected yoke formula amorphous alloy stereo roll iron core provided by the invention, the rewinding material
Comprising：Three disconnected yoke formula type amorphous alloy wound cores, the yoke formula type amorphous alloy wound core that each breaks are folded by several groups of amorphous alloy cores
Piece surrounds, if every group of amorphous alloy core lamination includes dried layer（It is preferred that 5 layers）Amorphous alloy strips.
Wherein, as shown in Fig. 2, each disconnected yoke formula type amorphous alloy wound core includes：Two 10 Hes of core limb being oppositely arranged
Two iron yokes 20 being oppositely arranged.One iron yoke is equipped with joining seam portion 21, can be with open or close rewinding material through the joining seam portion 21.It takes
The length on head 21 no more than takes the turning of head on both sides.
The core limb 10 of three disconnected yoke formula type amorphous alloy wound cores is each perpendicular to horizontal plane placement, and three disconnected yoke formulas are non-
The window that peritectic alloy rewinding material surrounds is equilateral triangle, and core limb 10 is close to for semicircle or class semicircle cylinder, each two
Core limb 10 form circular cylinder or approximate circle cylinder.Non-crystaline amorphous metal in above-mentioned each group of amorphous alloy core lamination
The width of band successively successively decreases, thus the core limb of each rewinding material surrounded is the semicircle or semicircular column of class
Body.The stem of conventional iron core is rectangle, so coil needs to be pressed rectangular, of the invention disconnected yoke formula amorphous afterwards around complete
The core limb of alloy stereo rewinding material is circular cylinder, directly with circular mold around to finishing, without press fitting.
The gap spacing g in adjacent joining seam portion 21（See Fig. 2）Less than or equal to 1mm, the lap of splice L in joining seam portion 21（See figure
2）For 8mm ~ 16mm.Air gap in gap can influence magnetic circuit, therefore gap spacing g is the smaller the better.
The present invention specifically includes for the manufacturing method of the disconnected yoke formula amorphous alloy stereo roll iron core of offer：
The first step：Suitable mark wide strip is selected from stent according to core dimensions requirement, by five layers of amorphous alloy strips
It puts to band machine is put, setting in software expects wide, initial bandwidth, terminates bandwidth, length, goes out trapezoidal shape band with slitting mill slitting,
Detect strip width, it is desirable that its dimensional discrepancy is no more than -0.5 ~+0mm, and every layer of thickness of strip is equal；The band that slitting comes out
It is whether smooth, smooth that band fracture must be gone through；If jagged, the circular blade for checking slitting mill is needed to have non-notch；
By the complete band of slitting around upper round paper tube, scattered with tape-stripping to prevent band, place it in and put on band machine, set in software
Cutting technique file, the parameters such as increment, carry out it is horizontal cuts, five obtained layer amorphous alloy strips are folded for one group of amorphous alloy core
Piece, detection band length, thickness and weight, it is ensured that meet technical papers regulation, finally obtain multigroup amorphous alloy core lamination；
Second step：Since the right, will inside one circle of bag of starting set, then around covering multigroup amorphous alloy on starting set
Heart lamination, outermost amorphous alloy core lamination are fixed with adhesive tape, obtain rewinding material, are clamped with C-type clamp and rewinding material is clamped,
By outer layer silicon steel sheet bag in rewinding material outer layer, rewinding material is pulled open with scraper, rewinding material is pulled open outward from level to level, rewinding material is put
It is placed on spike device, with hydraulic pressure support in the horizontal direction（That is iron yoke direction）Rewinding material is strutted, makes the outermost band of rewinding material
The size of joining seam is 8mm ~ 16mm, and the gap in adjacent joining seam portion is smaller than being equal to 1mm；In the inside in rewinding material joining seam portion, first
Silicon steel sheet in placement, then B inner templates are placed, interior silicon steel sheet is made to be positioned over B inner templates centre, with hydraulic pressure support vertically
（That is core limb direction）Rewinding material is strutted, is inserted into A inner templates, A template center position is tapped with rubber hammer, until and rewinding material
Core limb it is equal, rewinding material lower unit iron yoke outside place exterior sheathing, gently push-tight A exterior sheathings, use vernier caliper
Measure the folded thickness of rewinding material entirety, and the exterior sheathing placed with the tight rewinding material both sides of C-type clamp clamp；Hydraulic pressure support and spike are removed,
Rewinding material is positioned in ladle band, and places ladle on ladle band and buckles to fix rewinding material, is packaged with wrapping pincers and manually
Machine clamps；
3rd step：The core limb of rewinding material is positioned over parallel to horizontal plane in rewinding material shaping glue spreading apparatus, utilizes one
Determine radian shaping tool punching fill bandwidth at different levels, it is ensured that rewinding material lower surface be in same plane, make rewinding material lower surface and
The backing plate of rewinding material shaping glue spreading apparatus completely attaches to, it is desirable that band wide end surfaces at different levels are smooth, with the horizontal 30 °, and according to moving back
Ignition technique under nitrogen protection anneals to rewinding material；
4th step：After to be annealed, amorphous rewinding material lamination layer surface is cleaned with nylon bruss and dust catcher, is allowed to surface cleaning
Without fragment free from admixture, prevent epoxy resin from leaking into joining seam position, the seam of the advance packing lamination interlayer of the thicker epoxy resin of use
Gap coats one layer of diluter thin epoxy resin on iron core surface, epoxy resin is made to be sufficiently submerged in lamination layer, it is desirable that coating surface
Uniformly, thickness is no more than 1mm, surface bubble-free, the epoxy oozed out again with perching knife finishing iron core edge after epoxy resin cure
Resin, the special fixtures on rewinding material joining seam portion folder, until clamping；
5th step：Three rewinding materials are placed with horizontal plane, three rewinding materials surround a triangle, each two
The angle of rewinding material is 60 °, fits closely two core limbs 10 with cord belt binding core limb very close to each other, obtains this
The disconnected yoke formula amorphous alloy stereo roll iron core of invention.
As shown in figure 3, the rewinding material shaping glue spreading apparatus in above-mentioned 3rd step includes：Pedestal 10 ' is arranged on pedestal 10 '
Above and perpendicular to the baffle 21 ' of pedestal, it is adjacent to be arranged on end angled with pedestal 10 ' and with baffle 21 ' on pedestal 10 '
Bottom plate 22 ' parallel to bottom plate 22 ' and is movably arranged on the backing plate 23 ' on bottom plate 22 ' and the support of mobile four hydraulic pressure
30’.Wherein, the angle of baffle 21 ' and bottom plate 22 ' is 60 °, and the fastener of hydraulic pressure support 30 ' is 30 ° with the angle of pedestal 10 '.
Rewinding material shaping glue spreading apparatus is arranged on pedestal 10 ' and baffle 21 ' and bottom plate 22 ' also comprising slide assemblies
Between, it can be so that baffle 21 ' and bottom plate 22 ' be mobile as needed.
A inner templates in above-mentioned second step are the silicon steel sheets placed along the high A of window of single rewinding material, and B inner templates are along list
The silicon steel sheet that the window width B of a rewinding material is placed.
Annealing process in above-mentioned 3rd step specifically includes：
Step 3.1：The baffle 21 ' of rewinding material shaping glue spreading apparatus is enclosed and is put in the shape of agreeing with rewinding material window and big
Small, then, the window of rewinding material is nested with makes rewinding material be positioned on the rewinding material shaping glue spreading apparatus outside baffle, will
Rewinding material is placed in together with rewinding material shaping glue spreading apparatus in annealing furnace；
Step 3.2：The furnace temperature of annealing furnace is set to 340 ~ 380 DEG C, into the stage of a heating；How much is furnace temperature setting
It is to be determined according to the trade mark of amorphous band used；
Step 3.3：Rewinding material reaches target temperature and just carries out converter temperature, and rewinding material enters a holding stage；
Step 3.4：Rewinding material enters a cooling process after heat preservation.
Wherein, in step 3.1, rotating excitation field, the rotating excitation field are applied to rewinding material when iron core temperature reaches 200 DEG C
Magnetic field intensity in more than 2000A/m, handled with certain rotation speed, rotary speed takes 30 according to the size of iron core~
300rpm.Magnetic-field annealing can be obviously improved the magnetic property of non-crystaline amorphous metal, using the iron core remanent magnetism and magnetic conductance of longitudinal magnetic field annealing
Rate increases, and loss becomes larger；The iron core of transverse magnetic field annealing has the characteristics that low residual magnetic flux density and permanent magnetic conductivity, and loss subtracts
It is small；And rotating excitation field has the Comprehensive Characteristics of horizontal and vertical magnetic field processing, is lost and reduces while magnetic conductivity is increased.
Wherein, in step 3.2, the time of holding stage depending on rewinding material sectional area, in general soaking time
Control was at 100~300 minutes.
Wherein, in step 3.3, the mode of cooling is opened cooling blower and is taken out hot-air out of furnace body using cold wind
Go out, cooldown rate is more than 6 DEG C/min, and rewinding material temperature is down to 200 DEG C of closing rotating excitation fields, when iron core temperature is cooled to room temperature iron
The heart is come out of the stove.
The method of coated with adhesive in above-mentioned 4th step specifically includes：
Step 4.1：It after shaping of annealing, treats that rewinding material is cooled to room temperature, four hydraulic pressure supports 30 ' is made to be placed exactly in volume
The lower section at iron core turning starts four hydraulic pressure supports 30 ', jack-up height is made to be more than the thickness of backing plate 23 ', stops rising four hydraulic pressure
Support 30 '；
Step 4.2：Rewinding material by four hydraulic pressure support 30 ' jack up after by except the backing plate 23 ' in the joining seam portion for being close to rewinding material it
Its outer excess-three block backing plate 23 ' is extracted out；
Step 4.3：Releasing agent is coated on the three pieces of backing plates 23 ' extracted out in step 4.2, by binding agent（It is preferred that epoxy
Resin）It is coated uniformly on three pieces of backing plates 23 ' for scribbling releasing agent, three pieces of backing plates for scribbling binding agent is put back on bottom plate 22 ',
Make backing plate 23 ' and bottom plate 22 ' is gapless is bonded；
Step 4.4：Four hydraulic pressure are supportted 30 ' and drop to starting point, the lower surface of rewinding material is made to be bonded with backing plate 23 ', are glued
Knot agent is attached on the lower surface of rewinding material, and non-two turnings for taking head end of the lower surface of rewinding material are coated and are bonded
Agent, the lower surface coating of the rewinding material finish；
Step 4.5：The upper surface of rewinding material is cleaned, is applied in the core limb of the upper surface of rewinding material and the iron yoke in non-joining seam portion
Binding agent is covered, after to be bonded dose cures, the gluing operation of the rewinding material is completed.
The method of above-mentioned coated with adhesive need not overturn volume iron by the technique of first progressive die after annealing in coating procedure
The heart, and existing glue spreading method will be annealed after the rewinding material that finishes is put into and is molded in female mold, carries out the first face painting
Iron core after the first face epoxy resin cure is overturn and carries out coated on two surfaces by glue.
In addition, the method for above-mentioned coated with adhesive is molded glue spreading apparatus using rewinding material, iron core is jacked up by hydraulic device,
To the epoxy resin on backing plate is attached to iron core lower surface after backing plate progress gluing, iron core turn, secondary asphalt mixtures modified by epoxy resin are eliminated
Fat coats the cured time, improves the production efficiency of amorphous three dimensional wound core, reduces progressive die and turns over to amorphous three-dimensional winding iron
The influence of disposition energy.
In conclusion the present invention is used to provide a kind of disconnected yoke formula amorphous alloy stereo roll iron core and its manufacturing method, the volume
Iron core overcomes the shortcomings that continuous yoke three dimensional wound core coiling is difficult, using disconnected yoke type amorphous alloy wound core and three rewinding materials
Surround equilateral triangle, it is ensured that three-phase magnetic circuit is full symmetric isometric, it can be ensured that the balance of three phase supply makes magnetic resistance subtract significantly
It is few, and disconnected yoke rewinding material reduces special spooler installation investment, and the coiling of coil can be completed using existing coil winding machine, and
Can effective control coil each size, so as to ensure that the electric property of transformer, need not be pressed after the completion of coil winding whole
Shape reduces process for making, improves insulation performance, improves production efficiency.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (6)
1. a kind of manufacturing method of disconnected yoke formula amorphous alloy stereo roll iron core, which is characterized in that this method specifically includes：
The first step：Select the band of suitable normal width, according to technological requirement slitting go out trapezoidal shape band and carry out it is horizontal cut, obtain
To multigroup amorphous alloy core lamination；
Second step：Starting is covered into inwardly one circle of bag, around multigroup amorphous alloy core lamination is covered on starting set, fixation is outermost
Amorphous alloy core lamination obtains rewinding material and makes its clamping, by outer layer silicon steel sheet bag in rewinding material outer layer, and by rewinding material one
It organizes and pulls open outward, with hydraulic pressure support along rewinding material is both horizontally and vertically strutted, make the outermost band joining seam portion of rewinding material
Lap of splice L for 8mm~16mm, the gap spacing g in adjacent joining seam portion is less than or equal to 1mm；
3rd step：The core limb of rewinding material is positioned over parallel to horizontal plane in rewinding material shaping glue spreading apparatus, and using annealing
Technique under nitrogen protection anneals to rewinding material；
4th step：After to be annealed, glue spreading apparatus is molded to rewinding material coated with adhesive using rewinding material；
5th step：To be bonded dose of curing, the core limb of three rewinding materials and horizontal plane are placed, what three rewinding materials surrounded
Window is equilateral triangle, and three rewinding materials are fixed to obtain disconnected yoke formula amorphous alloy stereo roll iron core；
Three rewinding materials are three disconnected yoke formula type amorphous alloy wound cores；
Each disconnected yoke formula type amorphous alloy wound core is surrounded by several groups of amorphous alloy core laminations, every group of amorphous alloy core lamination
If include dried layer amorphous alloy strips；
The each disconnected yoke formula type amorphous alloy wound core includes：Two core limbs (10) being oppositely arranged and be oppositely arranged two
A iron yoke (20)；Wherein, an iron yoke is equipped with joining seam portion (21), can open or close rewinding material through the joining seam portion (21)；
The core limb (10) of three disconnected yoke formula type amorphous alloy wound cores is each perpendicular to horizontal plane placement, and three disconnected yokes
The window that formula type amorphous alloy wound core surrounds is equilateral triangle, and the core limb (10) is semicircle or class semicircular pillar
Body, the core limb (10) that each two is close to form the cylinder of circular cylinder or similar round.
2. the manufacturing method of disconnected yoke formula amorphous alloy stereo roll iron core according to claim 1, which is characterized in that the 3rd step
It is middle to make the rewinding material angle of its lower surface and horizontal plane after annealing using the rewinding material shaping glue spreading apparatus
Into 30 °.
3. the manufacturing method of disconnected yoke formula amorphous alloy stereo roll iron core according to claim 1, which is characterized in that the 3rd step
Described in rewinding material shaping glue spreading apparatus include：Pedestal (10 ') is arranged on pedestal (10 ') and perpendicular to the baffle of pedestal
(21 ') are arranged on pedestal (10 ') and the angled setting of pedestal (10 ') and the bottom plate adjacent with the end of baffle (21 ')
(22 '), parallel to bottom plate (22 ') and the backing plate (23 ') that is movably arranged on bottom plate (22 ')；
The annealing process specifically includes：
Step 3.1：The baffle (21 ') of rewinding material shaping glue spreading apparatus is enclosed to the shapes and sizes put in rewinding material window is agreed with,
The window of rewinding material is nested with makes rewinding material be positioned on the rewinding material shaping glue spreading apparatus outside baffle (21 '), will roll up
Iron core is placed in together with rewinding material shaping glue spreading apparatus in annealing furnace；
Step 3.2：Furnace temperature is set to 340~380 DEG C, into the stage of a heating；
Step 3.3：After rewinding material reaches target temperature, kept the temperature；
Step 3.4：It waits after keeping the temperature, rewinding material enters a cooling process.
4. the manufacturing method of disconnected yoke formula amorphous alloy stereo roll iron core according to claim 3, which is characterized in that described
Annealing process also includes：In step 3.2, rotating excitation field is applied to rewinding material when iron core temperature reaches 200 DEG C.
5. the manufacturing method of disconnected yoke formula amorphous alloy stereo roll iron core according to claim 2, which is characterized in that the 4th step
Described in the method for coated with adhesive include：
Step 4.1：After annealing and being molded, treat that rewinding material is cooled to room temperature, prop up rewinding material, it will be except being close to taking for rewinding material
Its excess-three block backing plate (23 ') outside the backing plate on head is extracted out；
Step 4.2：Releasing agent is coated on the three pieces of backing plates (23 ') extracted out in step 4.1, binding agent is coated uniformly on painting
Have on three pieces of backing plates (23 ') of releasing agent, three pieces of backing plates (23 ') for scribbling binding agent are put back on bottom plate (22 '), make backing plate
(23 ') are seamlessly bonded with bottom plate (22 ')；
Step 4.3：The height of rewinding material is reduced to starting point, the lower surface of rewinding material is made to be bonded with backing plate (23 '), binding agent is attached
It on the lower surface of rewinding material, then non-two turning coated with adhesive for taking head end by the lower surface of rewinding material, the volume
The lower surface coating of iron core finishes；
Step 4.4：The upper surface of rewinding material is cleaned, it is viscous in the core limb of the upper surface of rewinding material and the iron yoke coating in non-joining seam portion
Agent is tied, after to be bonded dose cures, the gluing operation of the rewinding material is completed.
6. the manufacturing method of disconnected yoke formula amorphous alloy stereo roll iron core according to claim 1, which is characterized in that the 4th step
Described in binding agent for epoxy resin, the thickness of the coated with adhesive is less than or equal to 1mm.
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| CN202102839U (en) * | 2011-05-16 | 2012-01-04 | 河南三三变压器股份有限公司 | Iron core structure of amorphous alloy transformer |
| CN102682988A (en) * | 2012-05-28 | 2012-09-19 | 广东海鸿变压器有限公司 | Amorphous alloy transformer iron core of three-dimensional triangle structure |
| CN204614616U (en) * | 2015-03-13 | 2015-09-02 | 青岛云路新能源科技有限公司 | A kind of compound amorphous transformer core |
| CN204651133U (en) * | 2015-06-05 | 2015-09-16 | 齐会南 | Collapsible open delta shaped iron core |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202102839U (en) * | 2011-05-16 | 2012-01-04 | 河南三三变压器股份有限公司 | Iron core structure of amorphous alloy transformer |
| CN102682988A (en) * | 2012-05-28 | 2012-09-19 | 广东海鸿变压器有限公司 | Amorphous alloy transformer iron core of three-dimensional triangle structure |
| CN204614616U (en) * | 2015-03-13 | 2015-09-02 | 青岛云路新能源科技有限公司 | A kind of compound amorphous transformer core |
| CN204651133U (en) * | 2015-06-05 | 2015-09-16 | 齐会南 | Collapsible open delta shaped iron core |
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Address after: Building 1888 Tianchen Road, Qingpu District, Shanghai, 201712 Patentee after: Shanghai Confidence Rigang Electric Co., Ltd. Address before: Building 1888 Tianchen Road, Qingpu District, Shanghai, 201712 Patentee before: Shanghai Metglas Zhixin Amorphous Metals Co., Ltd. |