CN212380281U - Shaping die for manufacturing iron-based or nickel-based annular magnetic core - Google Patents
Shaping die for manufacturing iron-based or nickel-based annular magnetic core Download PDFInfo
- Publication number
- CN212380281U CN212380281U CN202022261799.3U CN202022261799U CN212380281U CN 212380281 U CN212380281 U CN 212380281U CN 202022261799 U CN202022261799 U CN 202022261799U CN 212380281 U CN212380281 U CN 212380281U
- Authority
- CN
- China
- Prior art keywords
- positioning
- magnetic core
- positioning plate
- annular magnetic
- iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a design mould that is used for iron-based or nickel base annular magnetic core to make, include: the outer frame mold comprises two positioning beams and at least two connecting beams; the inner frame die comprises a first positioning plate and a second positioning plate which are arranged in a crossed mode, positioning parts are arranged at two ends of the upper portion of the first positioning plate, two ends of the upper portion of the first positioning plate are clamped in the two positioning grooves through the positioning parts respectively, the lower portion of the first positioning plate is arranged between the two positioning beams, and the second positioning plate is arranged between the two connecting beams; the width of the positioning groove is a, the distance between the two connecting beams is (a + b), the length of the second positioning plate is (a + c), wherein a is the cutting loss width of the iron-based or nickel-based annular magnetic core, b is the outer end width of the cut iron-based or nickel-based annular magnetic core, and c is the inner end width of the cut iron-based or nickel-based annular magnetic core. The utility model discloses be applied to annular magnetic core technical field.
Description
Technical Field
The utility model relates to an annular magnetic core technical field, concretely relates to design mould that is used for iron-based or nickel base annular magnetic core to make.
Background
An iron-based nanocrystalline open-close type annular magnetic core is used for an open-close type induction electromagnetic device. In recent years, the iron-based nanocrystalline open-close type annular magnetic core is widely applied to transmission lines in the transmission and distribution fields of high-voltage overhead transmission lines, cables, ring main units and the like because the iron-based nanocrystalline open-close type annular magnetic core has the characteristics of excellent magnetic conductivity, high Bs value, high precision and the like. The working voltage of the cable transmission line is up to 10kV to 1150kV, and the current is from dozens of amperes to thousands of amperes. The iron-based nanocrystalline open-close type annular magnetic core is used for getting electricity, so that the safety coefficient of an operator is high, the installation and the use are convenient and quick, and the disassembly, the maintenance and the installation are convenient again.
The iron-based nanocrystalline open-close type annular magnetic core pair is cut in half by adopting a green carbon silicon grinding wheel. As shown in fig. 1 to 2, the cut grinding wheel has a thickness of 0.8mm, so that the gap loss of the iron-based nanocrystalline open-close type annular magnetic core after cutting is more than 0.8 mm. And then processes such as grinding, deburring, polishing and the like are added to the cutting surface of the iron-based nanocrystalline open-close type annular magnetic core, and the loss value of the cutting gap of the iron-based nanocrystalline open-close type annular magnetic core reaches 1.0 mm. In actual use, a die of a matching part of a client product has tolerance precision requirements, and a part of clients require that the error of the cut iron-based nanocrystalline open-close type annular magnetic core is +/-0.3 mm, so that the iron-based nanocrystalline open-close type annular magnetic core in the prior art cannot meet the requirements.
In the prior art, when the iron-based nanocrystalline open-close type annular magnetic core is soaked and baked, the size of the iron-based nanocrystalline open-close type annular magnetic core is difficult to control, so that a large error is generated in the cut iron-based nanocrystalline open-close type annular magnetic core.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a size that is used for iron-based or nickel-based annular magnetic core to make, has reserved the loss width through outer frame mould and inner frame mould fixed time, when soaking, toasting, the annular magnetic core body of control that can be accurate satisfies the low reaches technological requirement.
(II) technical scheme
In order to solve the technical problem, the utility model provides a design mould that is used for iron-based or nickel base annular magnetic core to make, include:
the outer frame mold comprises two positioning beams and at least two connecting beams, the two ends of the two positioning beams are detachably connected through the connecting beams respectively to form a frame structure, positioning grooves are formed in the tops of the two positioning beams respectively, and the positioning grooves in the two positioning beams are opposite and are positioned on the same straight line;
the inner frame die comprises a first positioning plate and a second positioning plate which are arranged in a crossed mode, positioning parts are arranged at two ends of the upper portion of the first positioning plate, two ends of the upper portion of the first positioning plate are clamped in the two positioning grooves through the positioning parts respectively, the lower portion of the first positioning plate is arranged between the two positioning beams, and the second positioning plate is arranged between the two connecting beams;
the width of the positioning groove is a, the distance between the two connecting beams is (a + b), the length of the second positioning plate is (a + c), wherein a is the cutting loss width of the iron-based or nickel-based annular magnetic core, b is the outer end width of the cut iron-based or nickel-based annular magnetic core, and c is the inner end width of the cut iron-based or nickel-based annular magnetic core.
In a further improvement, the number of the connecting beams is two, and the two positioning beams and the two connecting beams are detachably connected to form a square frame structure.
In a further improvement, the two positioning beams have the same length, and the positioning groove is positioned in the center of the positioning beam.
In a further improvement, the lower part of the first positioning plate and the lower part of the second positioning plate are respectively provided with a clamping groove, and the lower part of the first positioning plate and the lower part of the second positioning plate are arranged in a crossed manner through two clamping grooves.
In a further improvement, the two buckling grooves are respectively positioned in the centers of the lower parts of the first positioning plate and the second positioning plate.
In a further improvement, the depth of the buckling groove is 3 mm-5 mm.
In a further improvement, the positioning beam, the connecting beam, the first positioning plate and the second positioning plate are made of metal materials.
In a further improvement, the connecting beam and the positioning beam are detachably connected through a back screw.
In a further improvement, a is 0.8 mm-1.3 mm.
In a further improvement, the depth of the positioning groove is 3-5 mm, the height of the positioning part is equal to the depth of the positioning groove, and the height of the lower part of the first positioning plate is equal to the height of the second positioning plate.
(III) advantageous effects
The utility model discloses an in the design mould that is used for iron-based or nickel base annular magnetic core to make, tear down an at least tie-beam with the frame construction that locating beam and tie-beam are constituteed, make annular magnetic core body can follow the opening part of unpacing apart and put into in the frame construction. After the annular magnetic core body is put in, the second positioning plate is arranged at the inner end of the annular magnetic core body and along the width direction of the annular magnetic core body. The lower part of the first positioning plate is abutted against the other direction of the inner end of the annular magnetic core body, and the positioning parts at the two ends of the upper part of the first positioning plate are clamped in the two positioning grooves, so that the first positioning plate and the second positioning plate can be fixed. Through the fixation of the lower part of the first positioning plate and the second positioning plate on the inner end of the annular magnetic core body, the inner end of the annular magnetic core body can be prevented from deforming when glue is soaked and baked, and the subsequent cutting is prevented from generating large errors. And finally, connecting the disassembled connecting beam at the corresponding position to seal the frame structure, so that the outer end of the annular magnetic core body can be fixed by the outer frame die, and the outer end of the annular magnetic core body is prevented from deforming when glue is soaked and baked to cause larger errors in subsequent cutting.
On the other hand, because frame mould and inside casing mould have reserved the loss width when treating the annular magnetic core body of cutting fixed, the utility model discloses an annular magnetic core body cutting back, the inner width and the outer end width of annular magnetic core body just can accord with the target dimension requirement, and its error is in the within range of ideal, and the finished product precision of making annular magnetic core is higher.
The utility model discloses an adopt inside casing mould with annular magnetic core body inside fixed, adopt the frame mould with annular magnetic core body external fixation, can fix annular magnetic core body and prevent that it from taking place to warp when soaking, toasting. And through the loss width that reserves, the size of the annular magnetic core body that can accurate control satisfies the low reaches technological requirement.
Drawings
FIG. 1 is a schematic diagram of loss width of a prior art cut iron-based nanocrystalline split-type toroidal core;
FIG. 2 is a dimension diagram of loss width of a cut iron-based nanocrystalline split-type toroidal core in the prior art;
fig. 3 is a three-view diagram of an outer frame mold according to an embodiment of the present invention;
fig. 4 is a second view of the first positioning plate according to an embodiment of the present invention;
fig. 5 is a two-view diagram of a second positioning plate according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of the annular magnetic core fixed by the outer frame mold and the inner frame mold according to an embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 3 to 6, a shaping mold for manufacturing an iron-based or nickel-based toroidal core includes:
the outer frame mold comprises two positioning beams 1 and at least two connecting beams 2, the two ends of the two positioning beams 1 are detachably connected through the connecting beams 2 to form a frame structure, positioning grooves 3 are respectively arranged at the tops of the two positioning beams 1, and the positioning grooves 3 on the two positioning beams 1 are opposite and positioned on the same straight line;
the inner frame die comprises a first positioning plate 4 and a second positioning plate 5 which are arranged in a crossed mode, positioning parts 41 are arranged at two ends of the upper portion of the first positioning plate 4, two ends of the upper portion of the first positioning plate 4 are clamped in the two positioning grooves 3 through the positioning parts 41 respectively, the lower portion of the first positioning plate 4 is arranged between the two positioning beams 1, and the second positioning plate 5 is arranged between the two connecting beams 2;
the width of the positioning groove 3 is a, the distance between the two connecting beams 2 is (a + b), and the length of the second positioning plate 5 is (a + c), wherein a is the cutting loss width of the iron-based or nickel-based annular magnetic core, b is the outer end width of the cut iron-based or nickel-based annular magnetic core, and c is the inner end width of the cut iron-based or nickel-based annular magnetic core.
The sizing die for manufacturing the iron-based or nickel-based annular magnetic core of the present embodiment fixes the annular magnetic core body 8 to be cut. In this embodiment, the normal direction of the surface to be cut of the annular magnetic core body 8 is customized to the width direction of the annular magnetic core body 8. The specific fixing method comprises the following steps:
at least one connecting beam 2 is removed from the frame structure formed by the positioning beams 1 and the connecting beams 2, so that the annular magnetic core body 8 can be placed into the frame structure from the detached opening. After the annular magnetic core body 8 is put into, the second positioning plate 5 is arranged at the inner end of the annular magnetic core body 8, and the second positioning plate 5 is arranged along the width direction of the annular magnetic core body 8. The lower part of the first positioning plate 4 is abutted against the other direction of the inner end of the annular magnetic core body 8, and the positioning parts 41 at the two ends of the upper part of the first positioning plate 4 are clamped in the two positioning grooves 3, so that the first positioning plate 4 and the second positioning plate 5 can be fixed. Through 4 lower parts of first locating plate and 5 fixed to 8 inner ends of annular magnetic core bodies of second locating plate, can prevent that 8 inner ends of annular magnetic core bodies from being out of shape when glue is soaked, is toasted and causing follow-up cutting to appear great error. And finally, the connecting beam 2 to be disassembled is connected at the corresponding position, so that the frame structure is closed, the outer frame die can fix the outer end of the annular magnetic core body 8, and the outer end of the annular magnetic core body 8 is prevented from deforming when glue is soaked and baked to cause large errors in subsequent cutting.
On the other hand, because outer frame mould and inner frame mould have reserved the loss width when treating annular magnetic core body 8 of cutting fixed, the annular magnetic core body 8 of this embodiment back of cutting, the inner width and the outer end width of annular magnetic core body 8 just can accord with the target dimension requirement, and its error is in the within range of ideal, and the finished product precision of making annular magnetic core is higher.
This embodiment is through adopting the inside casing mould with annular magnetic core body inside fixed, adopts the frame mould with annular magnetic core body external fixation, can fix annular magnetic core body 8 and prevent that it from taking place to warp when soaking, toasting. And through the loss width that reserves, the size of the annular magnetic core body 8 of control that can be accurate satisfies the low reaches technological requirement.
The annular magnetic core body 8 of the present embodiment includes an iron-based nanocrystalline annular magnetic core, an iron-based amorphous annular magnetic core, and a nickel-based annular magnetic core. The nickel base is the nickel-iron alloy, the main component of the nickel base is nickel, and the main component of the iron base is iron. Wherein, the ring shape includes a circular ring shape, a square ring shape, an elliptical ring shape and the like. Further, in an embodiment, the number of the connecting beams 2 is two, the two positioning beams 1 and the two connecting beams 2 are detachably connected to form a square frame structure, and the finished product of the finally manufactured annular magnetic core is circular or oval.
Further, in an embodiment, when the manufactured annular magnetic core body 8 is circular, the lengths of the two positioning beams 1 are equal, and the positioning slot 3 is located at the center of the positioning beam 1. Specifically, the distance between the two positioning beams 1 is b, and the length of the lower part of the first positioning plate 4 is c. After cutting, the finished product of the manufactured annular magnetic core is annular, the roundness is high, and the precision is guaranteed. More preferably, the two fastening grooves 6 are respectively located at the center of the lower portion of the first positioning plate 4 and the lower portion of the second positioning plate 5.
Further, in an embodiment, the depth of the locking groove 6 is 3mm to 5mm, specifically, the depth of the locking groove 6 is 4mm, wherein a is 0.8mm to 1.3mm, preferably, a is 1mm, b is 25mm, and c is 35 mm.
Further, in an embodiment, the lower portion of the first positioning plate 4 and the lower portion of the second positioning plate 5 are respectively provided with a snap groove 6, the lower portion of the first positioning plate 4 and the lower portion of the second positioning plate 5 are arranged in a crossed manner through the two snap grooves 6, and the first positioning plate 4 is connected with the second positioning plate 5, so that the assembly and disassembly are convenient.
Further, in an embodiment, the positioning beam 1, the connecting beam 2, the first positioning plate 4 and the second positioning plate 5 are made of metal. During baking, the positioning beam 1, the connecting beam 2, the first positioning plate 4 and the second positioning plate 5 can resist high temperature, are not easy to deform, and are convenient to guarantee the finished product precision of the annular magnetic core.
Furthermore, in an embodiment, the connecting beam 2 and the positioning beam 1 are detachably connected through a back screw 7, so that the cost is low, the assembly and disassembly are convenient, and the connection is firm.
Further, in an embodiment, the depth of the positioning groove 3 is 3mm to 5mm, the height of the positioning portion 41 is equal to the depth of the positioning groove 3, the height of the lower portion of the first positioning plate 4 is equal to the height of the second positioning plate 5, and in an actual production process, the height of the lower portion of the first positioning plate 4 may not be equal to the height of the second positioning plate 5, but the unequal heights may not facilitate storage and make processing inconvenient. When being equal, can be convenient for accomodate, processing is convenient.
In a specific embodiment, based on the shaping mold, a method for manufacturing an iron-based or nickel-based toroidal core includes the following steps:
s1, manufacturing an annular magnetic core body to be cut, wherein a loss width for cutting is reserved on the annular magnetic core body;
s2, fixing the inside of the annular magnetic core body by adopting an inner frame die, and fixing the outside of the annular magnetic core body by adopting an outer frame die;
and S3, sequentially carrying out heat treatment, glue soaking, baking, cutting and polishing on the fixed annular magnetic core body to obtain a finished product of the annular magnetic core.
In the manufacturing method of the iron-based or nickel-based annular magnetic core, the loss width is reserved for the annular magnetic core body to be cut, so that after the annular magnetic core body 8 is cut, the width of the inner end and the width of the outer end of the annular magnetic core body 8 just meet the target size requirement, the error is in an ideal range, and the finished annular magnetic core manufactured by the method is high in precision. Through adopting inside casing mould with 8 internal fixation of annular magnetic core body, adopt the frame mould with 8 external fixation of annular magnetic core body, can fix annular magnetic core body 8 and prevent it and take place to warp when soaking, toasting. The size of the annular magnetic core body 8 can be accurately controlled, and the requirements of downstream processes are met.
Preferably, a release agent is coated between the annular magnetic core body 8 and the outer frame mold and the inner frame mold respectively. When the annular magnetic core body is separated from the inner frame die and the outer frame die, the demolding agent can facilitate demolding of the annular magnetic core body 8.
Further, in one embodiment, in step S3, the annular magnetic core body is subjected to a heat treatment at a temperature of 540 to 570 ℃, so as to improve the magnetic properties of the annular magnetic core body, wherein the heat treatment time is 3 to 5 hours, and h is short for an hour unit. Preferably, the annular magnetic core body is subjected to heat treatment at the temperature of 560 ℃ for 5 h. The magnetic properties of the toroidal core body can be improved by heat treatment.
Further, in an embodiment, in step S3, in a vacuum-0.1 MPa container, the annular magnetic core body is soaked in the epoxy resin glue for 25min to 45min, where min is short for minute unit. Preferably, the soaking time is 30 min. Soak through glue and to make annular magnetic core body 8, make the annular magnetic core body sclerosis after the glue soaks through toasting, do benefit to the cutting.
Further, in an embodiment, in the step S3, after the glue is soaked, the annular magnetic core body 8 is baked for 3 to 6 hours at a temperature of 150 to 170 ℃. Preferably, after the glue is soaked, the annular magnetic core body 8 is baked for 5 hours in the temperature environment of 160 ℃. The hardness of the annular magnetic core body 8 can be further improved by baking, and cutting is facilitated.
Further, in an embodiment, in step S3, after drying, the annular magnetic core body is cut in the direction where the loss width is reserved, and the cut loss width is just consistent with the reserved loss width, so that the finished product of the annular magnetic core has extremely high precision after cutting, and can meet the customer requirements.
Of course, the shaping mold for manufacturing the iron-based or nickel-based annular magnetic core in this embodiment may also be used for fixing the non-annular magnetic core, in which only the outer frame mold is fixed to the outside of the non-annular magnetic core body, and the loss width is reserved at the same time. However, in the actual production process, the dimension control of the annular magnetic core is far more difficult than that of the non-annular magnetic core, so that the shaping mold for manufacturing the iron-based or nickel-based annular magnetic core in the embodiment has very important significance for the manufacturing application of the annular magnetic core.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A shaping die for manufacturing an iron-based or nickel-based annular magnetic core, comprising:
the outer frame mold comprises two positioning beams and at least two connecting beams, the two ends of the two positioning beams are detachably connected through the connecting beams respectively to form a frame structure, positioning grooves are formed in the tops of the two positioning beams respectively, and the positioning grooves in the two positioning beams are opposite and are positioned on the same straight line;
the inner frame die comprises a first positioning plate and a second positioning plate which are arranged in a crossed mode, positioning parts are arranged at two ends of the upper portion of the first positioning plate, two ends of the upper portion of the first positioning plate are clamped in the two positioning grooves through the positioning parts respectively, the lower portion of the first positioning plate is arranged between the two positioning beams, and the second positioning plate is arranged between the two connecting beams;
the width of the positioning groove is a, the distance between the two connecting beams is (a + b), the length of the second positioning plate is (a + c), wherein a is the cutting loss width of the iron-based or nickel-based annular magnetic core, b is the outer end width of the cut iron-based or nickel-based annular magnetic core, and c is the inner end width of the cut iron-based or nickel-based annular magnetic core.
2. A shaping mold for manufacturing an iron-based or nickel-based toroidal core according to claim 1, wherein the number of the connection beams is two, and the two positioning beams and the two connection beams are detachably connected to form a square frame structure.
3. A sizing die for the manufacture of an iron-based or nickel-based toroidal core according to claim 2, wherein the two positioning beams have equal lengths and the positioning slot is located in the center of the positioning beams.
4. The shaping mold for manufacturing the iron-based or nickel-based annular magnetic core according to claim 3, wherein the lower portion of the first positioning plate and the lower portion of the second positioning plate are respectively provided with a buckling groove, and the lower portion of the first positioning plate and the lower portion of the second positioning plate are arranged in a crossing manner through the two buckling grooves.
5. A sizing die for manufacturing an iron-based or nickel-based toroidal core according to claim 3, wherein two catching grooves are respectively formed at the center of the lower portions of the first positioning plate and the second positioning plate.
6. A shaping mold for manufacturing an iron-based or nickel-based toroidal core according to claim 4, wherein said catching groove has a depth of 3mm to 5 mm.
7. The shaping mold for manufacturing an iron-based or nickel-based toroidal core according to any one of claims 1 to 6, wherein the positioning beam, the connecting beam, the first positioning plate and the second positioning plate are made of metal.
8. The shaping mold for manufacturing an iron-based or nickel-based toroidal core according to any one of claims 1 to 6, wherein the connecting beam and the positioning beam are detachably connected by a back screw.
9. The sizing die for the manufacture of an iron-based or nickel-based toroidal core according to any of claims 1 to 6, wherein said a is comprised between 0.8mm and 1.3 mm.
10. The shaping mold for manufacturing an iron-based or nickel-based toroidal core according to any one of claims 1 to 6, wherein the depth of the positioning groove is 3mm to 5mm, the height of the positioning portion is equal to the depth of the positioning groove, and the height of the lower portion of the first positioning plate is equal to the height of the second positioning plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022261799.3U CN212380281U (en) | 2020-10-12 | 2020-10-12 | Shaping die for manufacturing iron-based or nickel-based annular magnetic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022261799.3U CN212380281U (en) | 2020-10-12 | 2020-10-12 | Shaping die for manufacturing iron-based or nickel-based annular magnetic core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212380281U true CN212380281U (en) | 2021-01-19 |
Family
ID=74172617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022261799.3U Active CN212380281U (en) | 2020-10-12 | 2020-10-12 | Shaping die for manufacturing iron-based or nickel-based annular magnetic core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212380281U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112951578A (en) * | 2021-01-26 | 2021-06-11 | 佛山市中研非晶科技股份有限公司 | Shaping external mold structure |
-
2020
- 2020-10-12 CN CN202022261799.3U patent/CN212380281U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112951578A (en) * | 2021-01-26 | 2021-06-11 | 佛山市中研非晶科技股份有限公司 | Shaping external mold structure |
| CN112951578B (en) * | 2021-01-26 | 2022-09-13 | 佛山市中研非晶科技股份有限公司 | Shaping external mold structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112117116B (en) | Method for manufacturing iron-based or nickel-based annular magnetic core | |
| US10096424B2 (en) | Method of manufacturing reactor | |
| CN212380281U (en) | Shaping die for manufacturing iron-based or nickel-based annular magnetic core | |
| JP6285336B2 (en) | Reactor and manufacturing method thereof | |
| US11699548B2 (en) | Inductor windings forming apparatus and method of manufacturing inductors | |
| CN107045929B (en) | The production method and casting mold of open-close type zero sequence transformer | |
| JP2014204054A (en) | Electronic component and manufacturing method therefor | |
| CN103928736A (en) | Self-positioning narrow-side bridge waveguide and vacuum brazing technology thereof | |
| US10878986B1 (en) | Inductor | |
| US6826832B2 (en) | Method of manufacturing ferrule for optical connector | |
| CN209823611U (en) | Shaping tool for copper wire winding gap bridge wire of axial magnetic field motor | |
| EP2992982B1 (en) | Investment casting of engine parts | |
| TW201532089A (en) | Method for producing electronic component, and electronic component | |
| US4723349A (en) | Method of making fixture for the window of a magnetic core | |
| CN215643922U (en) | Hot-pressing integrated inductor | |
| CN112117117A (en) | Shaping die for manufacturing iron-based or nickel-based annular magnetic core | |
| CN105308790A (en) | Transverse magnetic (TM) mode dielectric filter | |
| CN204672881U (en) | Combined type chamfering core rod | |
| JP2015088545A (en) | Inductor manufacturing method | |
| CN207560346U (en) | A kind of motor sub-assembly | |
| CN107470456A (en) | A kind of method for manufacturing reed material strip | |
| US4766407A (en) | Fixture for the window of a magnetic core | |
| JP5242490B2 (en) | Production method of ground coil for magnetic levitation railway | |
| CN111627650A (en) | Magnetic element and preparation method thereof | |
| CN111540575A (en) | Magnetic element and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |