CN101150006B - Amorphous alloy roll-core and its production method - Google Patents
Amorphous alloy roll-core and its production method Download PDFInfo
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- CN101150006B CN101150006B CN2006101162723A CN200610116272A CN101150006B CN 101150006 B CN101150006 B CN 101150006B CN 2006101162723 A CN2006101162723 A CN 2006101162723A CN 200610116272 A CN200610116272 A CN 200610116272A CN 101150006 B CN101150006 B CN 101150006B
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Abstract
This invention relates to a non-crystal alloy rolled iron-core and its manufacturing method, in which, the iron-core is formed by several single frames winded in different sections and the section shape of the butt-joint iron-core is in a pre-designed Quasi-circular, quasi-polygon or a complex shape made of non-crystal alloy material or non-crystal alloy and silicon steel ribbon, in which, the one with the largest section is taken as the master frame rolled continuously with the straight non-crystal alloy ribbon and other single frames are formed by rolling different shapes of silicon steel ribbons, besides, the butt-joint core can be either close one or an open one, can be either single phase iron-core, three phase three posts planar core or a three phase five posts planar core or a three phase solid core.
Description
Technical field
The present invention relates to a kind of transformer manufacturing technology, especially refer to amorphous alloy roll-core and manufacture method thereof.
Background technology
The material of making at present transformer core mainly contains two kinds of silicon strip and non-crystaline amorphous metals, and non-crystaline amorphous metal is compared with silicon strip, is a kind of material of more energy-conservation manufacturing transformer core.
Non-crystaline amorphous metal is to adopt rapid quench to solidify production technology, and its physical state shows as metallic atom and is unordered noncrystal arrangement, is more conducive to be magnetized and degaussing.This material is used for transformer core, and the transformer magnetization process is very easy to, thereby reduces the no-load loss of transformer greatly.From the no-load loss reduction degree of transformer, amorphous alloy strips is that the silicon strip of all various trades mark at present is incomparable.
Because amorphous alloy strips is much thinner than silicon strip, much crisp, and hardness is almost 5 times of silicon strip, so the transformer production enterprise equipment that is used to the to cut silicon strip amorphous alloy strips of at all having no idea to cut.Want to produce amorphous alloy transformer, must buy iron core, and the enterprise of domestic existing two tame professional production amorphous alloy iron cores, also do not have the slitting equipment of non-crystaline amorphous metal, have only band to cut off equipment to the enterprise of professional production amorphous alloy iron core.
The present main dependence on import of amorphous alloy strips, the amorphous alloy strips width dimensions specification of import seldom, have only three kinds of 142cm, 170cm, 213cm, can't satisfy the requirement of different capabilities iron core, therefore when needing different cross-sectional for the iron core of different capabilities, often can only be mainly the gauge of rectangular shape by the change core section realize.The maximum length-width ratio of the cross section rectangle of present various capacity iron cores has reached 4.
Therefore, mainly there is following problem in existing amorphous alloy iron core:
A, since at present the amorphous alloy strips of external import have only the straight band of three kinds of width, therefore the iron core shape of cross section of making can only be that rectangle is a kind of, reaches 4 for the length-width ratio of the iron core cross section rectangle of some capacity, can not rounded or polygon.As everyone knows, the girth minimum of circle in the same sectional area shape, the girth of rectangle is bigger, and particularly length-width ratio is big more, and girth is just long more.And girth length must make the average turn of transformer coil long just long, not only wastes valuable copper, and can increase the load loss and the transformer temperature rise of transformer.
B, because the present iron core of amorphous alloy material, cross section can only be a rectangle, can not be circular, so coil shape can only be rectangle also, and can not be circular.Can't the ribbon core coiling.Therefore iron core can only be made the open type iron core, and can not be the closed type iron core.For being more suitable for adopting the remain silent small capacity transformer of volume iron core also can only adopt open type volume iron core.
The opening material of c, open type iron core will make material increase stress through repeatedly bending, the particularly material bending after annealing, makes the decreased performance of iron core, and no-load loss rises.
There are the space in d, open type iron core opening amorphous alloy material joint, and reason such as amalgamation defective tightness, and noise is bigger than the noise of the iron core of remaining silent with capacity.
E, opening amorphous alloy material are when closure, amorphous alloy material is subjected to bending, and the amorphous alloy material surface comes off easily, produces the fish scale tablet, these tablets float and cause transformer fault easily in transformer oil, and the fail safe of transformer is descended.
F, amorphous alloy material are because too thin, so the iron core rigidity of making is very poor, the weight that can't bear the line bag must increase the weight that supporting member bears iron core, increase the difficulty of device body assembling.
G, amorphous alloy material are relatively more expensive, and material source is single, is unfavorable for large-scale popularization.
In sum, in view of amorphous alloy material is that a kind of advantage is outstanding, but the also fairly obvious material of shortcoming, therefore, how to provide a kind of novel compound section amorphous alloy roll-core, keep this material advantage, overcoming its shortcoming, is one of the applicant's content of endeavouring to study.
The content of invention
The object of the present invention is to provide and a kind ofly can improve the iron core performance, save material and amorphous alloy roll-core that reduces cost and manufacture method thereof, and can improve the iron core processing technology and improve the reliability of transformer work.
A kind of amorphous alloy roll-core provided by the present invention, it is characterized in that: this volume iron core is to be put together by the single frame that several different cross section shapes coilings form, and the core section shape is predetermined quasi-circular, accurate polygon or complex after making amalgamation, and again: this volume iron core adopts amorphous alloy material or non-crystaline amorphous metal and two kinds of materials of silicon strip to make.
In above-mentioned amorphous alloy roll-core, in described several single frames, be main frame with cross section the maximum, this main frame is directly to be with the material continuous reeling to form by non-crystaline amorphous metal, all the other single frames are to be formed by difform silicon strip continuous reeling.
In above-mentioned amorphous alloy roll-core, difform silicon strip is trapezoid belt, arcuate zone or straight band.
In above-mentioned amorphous alloy roll-core, several independently single frame adopt the suit mode and fit tightly fixingly with the single frame binding face mutually, amalgamation forms iron core integral body.
In above-mentioned amorphous alloy roll-core, the single frame of several mutual amalgamations is the single frame of remaining silent, and the iron core after the amalgamation is the volume iron core of remaining silent.
In above-mentioned amorphous alloy roll-core, the single frame of several mutual amalgamations is the opening single frame of U-shaped, and the iron core after the amalgamation is an open coil iron core.
In above-mentioned amorphous alloy roll-core, the volume iron core that several single frames piece together is single-phase volume iron core, three-phase three-column plane reeling iron core, three-phase and five-pole plane reeling iron core or three-phase stereo volume iron core.
The present invention also provides a kind of method of making above-mentioned open coil iron core, comprise the following steps: to process U-shaped opening master frame step: directly cut off with strip cutting machine length dimension on request with material with non-crystaline amorphous metal, clamp into U-shaped through forming jig, after annealing in process, form U-shaped opening master frame again; Process other single frame step, on the silicon strip broken line cutting machine of special use, carry out the processing of cutting out a piece of cloth in a way with the minimum material to make two or more articles of clothing of the trapezoidal and/or circular arc silicon strip of each bar with the silicon strip material, successively couple together by a graded driving the trapezoidal silicon strip of cutting out good all size with argon arc welding, on the coiling iron core machine, be wound into the single frame of remaining silent again, cut into the opening single frame with will the remain silent yoke part layer dislocation of single frame of special-purpose cutter again, under the condition of clamp, carry out the single frame annealing in process; Amalgamation step: the main frame of non-crystaline amorphous metal and other single frame of silicon strip are pieced together an integral body, forming a kind of is the single-phase volume iron core of open type that the main cross section of being made up of jointly non-crystaline amorphous metal and silicon strip forms for predetermined different cross section combination of shapes with the amorphous alloy material, during amalgamation, mutual binding face is glued together between each single frame, and at the stem stem position with binding strap with amalgamation each single frame colligation together together.
The present invention provides a kind of remain silent method of plane reeling iron core of above-mentioned three-phase three-column of making simultaneously, comprise the following steps: to process non-crystaline amorphous metal master frame step: with the strip of non-crystaline amorphous metal different in width, on the coiling iron core machine, be wound into the main frame of remaining silent by dimensional requirement, carry out annealing in process, form independent single frame; Process other single frame step: cut out a piece of cloth in a way with the minimum material to make two or more articles of clothing the trapezoidal strip that is processed into various sizes by dimensional requirement silicon strip vertical bar material on the silicon strip broken line cutting machine of special use, successively couple together by a graded driving the trapezoidal silicon strip of cutting out good all size with argon arc welding, be wound into single closed single frame again on the coiling iron core machine, annealed processing forms independent single frame; The amalgamation step: earlier with each single frame on request amalgamation become two little one three big unit frames, again three unit frames are pieced together the complete three-phase three-column plane reeling iron core of remaining silent, adopt filler to fill the gap after the amalgamation.
The present invention further provides a kind of make above-mentioned three-phase three-column solid remain silent the volume iron core method, comprise the following steps: to process non-crystaline amorphous metal master frame step: the non-crystaline amorphous metal strip of different in width is wound into closed single frame on the special-purpose up-coiler of solid volume iron core, under the clamp state, carry out annealing in process again, form independent single frame; Process other single frame step: directly on the silicon strip broken line cutting machine of special use, cut out a piece of cloth in a way with the minimum material to make two or more articles of clothing strip in echelon with material with silicon strip, successively couple together in order driving the trapezoidal silicon strip of cutting out good all size with argon arc welding, on solid volume coiling iron core machine, be wound into single closed single frame again, carry out annealing in process again, form independent single frame; The amalgamation step: with each single frame on request mutual sheathing piece together the unit frame, with three unit frames, combine again, fill up insulating paper between the binding face mutually, make mutually insulated between three unit frames, three stem stem appearances are firmly tightened with binding strap, form the three-phase three-column solid volume iron core of remaining silent.
Owing to adopted above-mentioned technology solution, the effect that the present invention reaches is mainly reflected in following several respects.
1, improves performance
The present invention is except the no-load loss performance may slightly descend than existing amorphous alloy iron core, and other performance is as load loss, and no-load current, noise etc. all have obvious minimizing, and then other performance is significantly improved.
A, reduction load loss: load loss of the present invention can descend about 10% than the load loss of existing amorphous alloy core transformer.
B, reduction no-load current: the comparable existing amorphous alloy transformer no-load current of the reel iron core transformer of remaining silent of the present invention descends about 50%.
C, reduction noise: the comparable existing amorphous alloy transformer noise of the reel iron core transformer of remaining silent of the present invention can descend 5～10 decibels.
2, saving material reduces cost
A, saving copper material:, so can save copper material 10%-25% because the present invention compares the long decline 10%-25% of coil average turn with having amorphous alloy iron core at present now under the identical situation of iron core stem stem sectional area.
B, saving amorphous alloy material: owing to part amorphous alloy material of the present invention replaces with silicon strip, so can save the expensive amorphous alloy material of 10%-30%.
3, improve the iron core processing technology
Because the present invention adopts part silicon strip material to replace amorphous alloy material, has increased the rigidity of iron core, makes the iron core clamping, manufacturabilities such as carrying improve.
4, improved the reliability of transformer work
Because the present invention can make the volume iron core of remaining silent, do not need to carry out iron core and seal, so material do not need bending, significantly reduce coming off of fish scale tablet.Reduced possibility, improved the reliability of transformer work because of existing a large amount of fish scale tablets to cause transformer work to break down in the transformer.
Description of drawings
By the description of following embodiment to a kind of amorphous alloy roll-core of the present invention and manufacture method thereof, can further understand purpose of the present invention, specific structural features and advantage in conjunction with its accompanying drawing.Wherein, accompanying drawing is:
Fig. 1 (a) is the structural representation of the single-phase open coil iron core of non-crystaline amorphous metal of the present invention;
Fig. 1 (b) is the structural representation that the closed back of Fig. 1 (a) split shed part forms the volume iron core of remaining silent;
Fig. 2 (a) is combined into the decomposing schematic representation that its difformity cross section of each U-shaped single frame of iron core is arranged among the present invention;
Fig. 2 (b) is the schematic diagram of the iron core cross section that forms after its difformity transverse cross-sectional combinations of each U-shaped single frame among Fig. 2 (a);
Fig. 3 is the remain silent structural representation of plane reeling iron core of non-crystaline amorphous metal three-phase three-column of the present invention;
Fig. 4 is the decomposing schematic representation of the A-A section among Fig. 3;
Fig. 5 (a) is the cross sectional representation of big unit frame among the present invention;
Fig. 5 (b) is the cross sectional representation of junior unit frame of the present invention;
Fig. 5 (c) is the decomposing schematic representation of the B-B section among Fig. 3;
Fig. 6 is each the Seed packaged band shape schematic diagram that is wound into single frame among the present invention;
Fig. 7 be non-crystaline amorphous metal three-phase three-column solid of the present invention remain silent the volume iron core structural representation;
Fig. 8 is the cross sectional representation of each unit frame among the present invention;
Fig. 9 (a)～(d) is the schematic diagram of the shape of cross section of each single frame, and wherein Fig. 9 (c) is the schematic diagram of the shape of cross section of main frame;
Figure 10 is each the Seed packaged band shape schematic diagram that is wound into single frame among the present invention.
Embodiment
Be example with single-phase open coil iron core, three-phase three-column volume iron core, the three-phase stereo volume iron core of remaining silent of remaining silent respectively, illustrate particular content of the present invention.
1, embodiment one: single-phase open coil iron core
Shown in Fig. 1 (a), the single-phase open coil iron core 10 of non-crystaline amorphous metal of the present invention, shown in Fig. 1 (b), form after the opening portion closure volume iron core 10 of remaining silent '.
This iron core is to be combined by 5 different U-shaped single frames 11,12,13,14,15 of shape of cross section.Wherein the U-shaped single frame 15 of cross-sectional area maximum is main frame, and main frame is to make with amorphous alloy material, and all the other single frame 11,12,13,14 usefulness silicon strip materials are made.The shape of cross section of each single frame shown in Fig. 2 (a), main frame cross section 15 ' and all the other single frame cross sections 11 ', 12 ', 13 ', become the cross section 10 of the single-phase open coil iron core of U-shaped after 14 ' combination ", shape such as Fig. 2 (b).
During the mutual amalgamation of each U-shaped single frame, can adopt methods such as splicing, colligation, make it form a firm integral body.
Manufacture method of the present invention
The manufacturing of U-shaped opening master frame is directly cut off with strip cutting machine length dimension on request with material with non-crystaline amorphous metal, clamps into U-shaped through forming jig, forms after annealing in process again.This U-shaped opening master frame also can directly customize by size to amorphous alloy iron core factory.
Other single frame is made: carry out the processing of cutting out a piece of cloth in a way with the minimum material to make two or more articles of clothing of each bar trapezoidal (also can be other shapes such as circular arc) silicon strip on the silicon strip broken line cutting machine of special use with the silicon strip material, successively couple together by a graded driving the trapezoidal silicon strip of cutting out good all size with argon arc welding, on the coiling iron core machine, be wound into the single frame of remaining silent again, cut into the opening single frame with will the remain silent yoke part layer dislocation of single frame of special-purpose cutter again, under the condition of clamp, carry out the single frame annealing in process.
The main frame of non-crystaline amorphous metal and other single frame of silicon strip are pieced together an integral body, form a kind ofly based on amorphous alloy material, non-crystaline amorphous metal and silicon strip be common to be formed, and cross section is the single-phase volume iron core of open type that multiple different cross section combination of shapes forms.During amalgamation, between each single frame mutually binding face it firmly is glued together (also available other glue or without glue) with epoxy resin, tightly colligation is together with amalgamation each single frame together with binding strap at the stem stem position.
2, embodiment two: the three-phase three-column plane reeling iron core of remaining silent
As shown in Figure 3, the non-crystaline amorphous metal three-phase three-column of the present invention plane reeling iron core of remaining silent, this iron core 20 is made up of 21,22 and big unit frames 25 of two junior unit frames.Each unit frame all is to be combined by the different single frame of remaining silent of several cross sectional shapes, as: big unit frame 25 is made up of three single frames 251,252,253, junior unit frame 22 is made up of three single frames 221,222,223, and each unit frame all has the bigger single frame of sectional area as main frame, as: the single frame 253 of big unit frame, the single frame 223 of junior unit frame.Main frame is to make with amorphous alloy material, and the less single frame of other sectional area is made with silicon strip.After passing through heat-treatment of annealing, form separately independently single frame especially respectively.
As shown in Figure 4, three single frames 251,252,253 of forming big unit frame 25, its difform cross section 251 ', 252 ', 253 ', be combined into shape of cross section such as Fig. 5 (a) of big unit frame 25, wherein, cross section 253 ' be the cross section of main frame 253, main frame is to make with amorphous alloy material, other smaller cross-sectional area 251 ', 252 ' single frame 251,252 usefulness silicon strips make.
Remain silent its shape of cross section behind the plane reeling iron core near circular in order to make three unit frames piece together three-phase three-column, referring to Fig. 4, form the difformity cross section 223 of three single frames 223,222,221 of junior unit frame 22 ', 222 ', 221 ' arrange with the difform cross section 253 of three single frames of big unit frame ', 252 ', 251 ' arranging is symmetry status, forms shape of cross section such as Fig. 5 (b) of junior unit frame 22.
Thus, three unit frames piece together three-phase three-column and remain silent the shape of cross section of plane reeling iron core shown in Fig. 5 (c).
The strip shape that is wound into single frame as shown in Figure 6, the main frame 253 of big unit frame adopts 253 " strip, the strip that single frame 251,252 adopts are respectively 251 ", 252 "; The main frame 223 of junior unit frame adopts 223 " strip that strip, single frame 221,222 adopt is respectively 221 ", 222 ".
Manufacture process of the present invention:
The manufacturing of non-crystaline amorphous metal master frame with the strip of non-crystaline amorphous metal different in width, is wound into the main frame of remaining silent by dimensional requirement on the coiling iron core machine, carry out annealing in process, forms independent single frame.
Other single frame is made: cut out a piece of cloth in a way with the minimum material to make two or more articles of clothing the trapezoidal strip that is processed into various sizes by dimensional requirement silicon strip vertical bar material on the silicon strip broken line cutting machine of special use, successively couple together by a graded driving the trapezoidal silicon strip of cutting out good all size with argon arc welding, be wound into single closed single frame again on the coiling iron core machine, annealed processing forms independent single frame.
Earlier each single frame is pieced together three (two little one is big) unit frames on request, again three unit frames are pieced together the complete three-phase three-column plane reeling iron core of remaining silent.In order to reduce the difficulty of mutual amalgamation between the single frame, should leave slight clearance between the mutual binding face of each single frame.Adopt epoxy resin (also can adopt other suitable glue) to fill these gaps after the amalgamation.When the space is bigger than normal, can adopt the silicon strip that inserts some as filler, reducing the space, and will remain the space with epoxy resin again and fill up.Make each single frame comprise that filler connects to an integral body together securely.For improving in the iron core strength of connection between each single frame, also can adopt binding strap tighten in the iron core appearance.
Embodiment three: the three-phase three-column solid volume iron core of remaining silent
As shown in Figure 7, the three-phase three-column solid of the present invention volume iron core of remaining silent, this iron core is to be combined by identical or essentially identical three the unit frames 30 of remaining silent of shape, the cross section of each unit frame 30 as shown in Figure 8, each unit frame is put together by four single frames 31,32,33,34 again, and the single frame 33 of cross-sectional area maximum is main frame in four single frames, and main frame 33 is to be formed after the annealing of reeling by amorphous alloy material, other single frame the 31,32, the 34th, through reeling, the annealing back forms by silicon strip.The shape of cross section of each single frame as shown in Figure 9, each strip shape of forming each single frame as shown in figure 10, the strip that the main frame 33 of unit frame adopts 33 ' strip, single frame 31,32,34 to adopt is respectively 31 ', 32 ', 34 '.
Manufacture method of the present invention:
The manufacturing of non-crystaline amorphous metal master frame is wound into closed single frame with the non-crystaline amorphous metal strip of different in width on the special-purpose up-coiler of solid volume iron core, carry out annealing in process again under the clamp state, forms independent single frame.
The manufacturing of other single frame: the silicon strip with certain size is directly cut out a piece of cloth in a way with the minimum material to make two or more articles of clothing strip in echelon with material on the silicon strip broken line cutting machine of special use, (also can be arc strip or straight band).Successively couple together by a graded driving the trapezoidal silicon strip of cutting out good all size, on solid volume coiling iron core machine, be wound into single closed single frame again, carry out annealing in process again with argon arc welding.Form independent single frame.
With each single frame on request mutual sheathing piece together the unit frame, suit amalgamation for convenience should leave micro-space between each single frame amalgamation face, with epoxy resin or other glue the space is filled up after the amalgamation, makes its mutual secure bond become a complete unit frame.
With three unit frames, combine again, mutually fill up insulating paper between the binding face, make mutually insulated between three unit frames, three stem stem appearances are firmly tightened with binding strap, form the three-phase three-column solid volume iron core of remaining silent.Also available epoxy between three unit frames, insulating varnish, or other glue with three unit frame secure bond together, form a whole iron core.
In sum, the present invention rolls up iron core and has following characteristics:
A, the used material of iron core of the present invention both can all be the non-crystaline amorphous metal bands, also can increase partial properties silicon strip material preferably based on amorphous alloy strips, and two kinds of combinations of materials together.
B, iron core stem stem cross section are to be formed by several combination of shapes, and the cross sectional shape after the combination is quasi-circular, and accurate polygon also can be the complex of the two combination.
C, this iron core can be the volume iron cores of remaining silent, and also can be open coil iron cores.
The present invention's's " a kind of compound section amorphous alloy roll-core " advantage:
A, saving material.Because the iron core shape of cross section is changed over by original rectangle and is in close proximity to round quasi-circular, accurate polygon or complex.The average turn length of coil is shortened, saved copper material.In addition, because the part material of iron core is used the silicon strip material instead, used expensive amorphous alloy material less, thereby reduced the manufacturing cost of iron core.
B, improved the performance of iron core.Because the shape of cross section of iron core can be made the director circle cross sectional shape, the average turn that has reduced coil is long, has reduced copper consumption, has reduced transformer copper loss and heating, has just reduced the load loss and the temperature rise of transformer.
Because iron core can make the volume iron core of remaining silent, and compare with the capacity open coil iron core, can reduce the no-load loss and the noise of iron core.
C, make the volume iron core of remaining silent, iron core no longer needs to seal, and just amorphous alloy material no longer needs bending, so iron core can obviously reduce the fish scale shape spall of non-crystaline amorphous metal, the fail safe that has improved transformer.
D, owing to increased the part silicon strip in the iron core, strengthened the rigidity of iron core, improved the fixing manufacturability of iron core, reduced the distortion of iron core in carrying, transportation, clamping process.
Need to prove: above only unrestricted technical scheme of the present invention in order to explanation, although the present invention is had been described in detail with reference to the foregoing description, those of ordinary skill in the art is to be understood that: still can make amendment or be equal to replacement the present invention, and not breaking away from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (3)
- FF-2. be connected together, and at the stem stem position with binding strap with amalgamation each single frame colligation together together.
- 8. a method of making the described three-phase three-column plane reeling iron core of claim 6 comprises the following steps:Processing non-crystaline amorphous metal master frame step: with the strip of non-crystaline amorphous metal different in width, on the coiling iron core machine, be wound into the main frame of remaining silent, carry out annealing in process, form independent single frame by dimensional requirement;Process other single frame step: cut out a piece of cloth in a way with the minimum material to make two or more articles of clothing the trapezoidal strip that is processed into various sizes by dimensional requirement silicon strip vertical bar material on the silicon strip broken line cutting machine of special use, successively couple together by a graded driving the trapezoidal silicon strip of cutting out good all size with argon arc welding, be wound into single closed single frame again on the coiling iron core machine, annealed processing forms independent single frame;The amalgamation step: earlier with each single frame on request amalgamation become two little one three big unit frames, again three unit frames are pieced together the complete three-phase three-column plane reeling iron core of remaining silent, adopt filler to fill the gap after the amalgamation.
- 9. a method of making the described three-phase stereo volume of claim 6 iron core comprises the following steps:Processing non-crystaline amorphous metal master frame step: the non-crystaline amorphous metal strip of different in width is wound into closed single frame on the special-purpose up-coiler of solid volume iron core, under the clamp state, carries out annealing in process again, form independent single frame;Process other single frame step: directly on the silicon strip broken line cutting machine of special use, cut out a piece of cloth in a way with the minimum material to make two or more articles of clothing strip in echelon with material with silicon strip, successively couple together in order driving the trapezoidal silicon strip of cutting out good all size with argon arc welding, on solid volume coiling iron core machine, be wound into single closed single frame again, carry out annealing in process again, form independent single frame;The amalgamation step: with each single frame on request mutual sheathing piece together the unit frame, with three unit frames, combine again, fill up insulating paper between the binding face mutually, make mutually insulated between three unit frames, three stem stem appearances are firmly tightened with binding strap, form the three-phase three-column solid volume iron core of remaining silent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101162723A CN101150006B (en) | 2006-09-20 | 2006-09-20 | Amorphous alloy roll-core and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101162723A CN101150006B (en) | 2006-09-20 | 2006-09-20 | Amorphous alloy roll-core and its production method |
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| Publication Number | Publication Date |
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| CN101150006A CN101150006A (en) | 2008-03-26 |
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