Iron core manufacturing process and pulse fan edge dipolar magnet

By fabricating the iron core using arc stacking and envelope stacking processes, the problem of loose pieces at the iron core ends in the fan-edge pulsed diode magnet was solved, improving the stability and accuracy of the magnetic field, optimizing the integrity and uniformity of the magnetic circuit, enhancing the structural stiffness, and improving the repeatability and long-term stability of the magnetic field.

CN121793221APending Publication Date: 2026-04-03INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-05
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing fan-edge pulsed diode magnets suffer from magnetic field instability and reduced magnetic field accuracy due to the loosening of iron core ends during use.

Method used

The iron core is manufactured using arc stacking and envelope stacking processes to ensure that the ends of the iron core are made of complete silicon steel sheets, and is fixed by welding plates and end plates to avoid the problem of loose sheets.

Benefits of technology

It improves the stability and accuracy of the magnetic field, optimizes the integrity of the magnetic circuit and the uniformity of the magnetic field distribution, enhances the integrity and structural rigidity of the iron core, suppresses magnetic field fluctuations, and improves the repeatability and long-term stability of the magnetic field.

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Abstract

The invention relates to the technical field of particle accelerator magnets, in particular to an iron core manufacturing process and a pulse fan edge dipolar magnet. The iron core manufacturing process comprises the following steps: S1, stacking first silicon steel sheets along an arc line to form an iron core blank with an arc-shaped side wall; s2, the two ends of the iron core blank are cut according to a preset pole face rotation angle, so that the iron core blank is in a fan shape; and S3, stacking a second silicon steel sheet on the cutting surface of the iron core blank, and enveloping the cut first silicon steel sheet in the middle of the iron core. In the invention, by optimizing the iron core manufacturing process, the end part of the iron core is formed by the complete silicon steel sheet, so that the problem of sheet pulling can be avoided when the iron core is subjected to magnetism repairing processing, the two ends of the silicon steel sheet are fixed by utilizing the end plates and the welding plates at the same time, and the problem of sheet scattering at the end part of the iron core in the use process can also be avoided; and the magnetic field stability and the magnetic field precision of the fan-edge pulse dipolar magnet are improved.
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Description

Technical Field

[0001] This invention relates to the field of particle accelerator magnet technology, and in particular to a core manufacturing process and a pulsed fan-edge diode magnet. Background Technology

[0002] Dipole magnets are an important component of particle accelerators. Their primary function is to apply a deflecting force to the beam, causing it to deflect along a predetermined trajectory. Based on their operating characteristics, there are two types of dipole magnets: those suitable for DC mode and those suitable for pulsed mode.

[0003] Dipole magnets do not require consideration of eddy currents in the core when operating in DC mode. However, when operating in pulse mode, a special structure is needed to reduce eddy currents in the core. Therefore, dipole magnets used in pulse mode employ a core made of laminated silicon steel sheets, with the thickness of the silicon steel sheets typically not exceeding 1 mm. Furthermore, dipole magnets can be categorized into fan-edge pulse dipole magnets and parallel-edge pulse dipole magnets based on the shape of their cores.

[0004] Currently, the manufacturing process commonly used for the iron core in fan-edge pulse diode magnets is as follows: Figure 1 As shown, a core blank is first fabricated by stacking silicon steel sheets, with the end face of the core blank aligned with the first position mark. Then, the core blank is cut along the second position mark to form a fan-shaped core. This results in many incomplete fragments at both ends of the core due to the cutting process. To better guide the beam deflection, the ends of the core need to be magnetized to correct the magnetic field. Therefore, the magnetization process is performed on these fragments, which can easily lead to fragment tearing during processing. During use, the position of these fragments in the beam direction can easily change due to the applied current, thus altering the magnetic field of the fan-edge pulsed diode magnet and potentially affecting the accelerator beam quality. Summary of the Invention

[0005] This invention aims to solve the technical problems existing in related technologies. To this end, this invention proposes a core manufacturing process and a pulsed fan-edge diode magnet to solve the problem that the core is prone to breakage during use, resulting in poor magnetic field stability and reduced magnetic field accuracy of the diode magnet.

[0006] In a first aspect, the present invention provides a core manufacturing process, comprising: S1. Using first silicon steel sheets stacked along an arc to form an iron core blank with arc-shaped sidewalls; S2. Cut the two ends of the core blank according to the preset pole face angle to make the core blank fan-shaped; S3. Stack the second silicon steel sheet on the cut surface of the iron core blank, and wrap the cut first silicon steel sheet in the middle of the iron core.

[0007] According to a core manufacturing process provided by the present invention, the step of stacking first silicon steel sheets along an arc to form a core blank with arc-shaped sidewalls includes: Set a reference position line on the midline of the arc, and then set two first position lines symmetrically distributed on both sides of the reference position line; When making the core blank, the first silicon steel sheet is stacked along the arc and from the reference position mark to the first position mark, so that the end of the core blank is flush with the first position mark.

[0008] According to a core manufacturing process provided by the present invention, the step of cutting both ends of the core blank according to a preset pole face angle includes: The pole face rotation angle of the core blank is set based on the required deflection angle of the beam. Two second position marks are set symmetrically distributed on both sides of the reference position mark according to the pole face rotation angle. The end of the core blank is cut along the second position marks.

[0009] According to a core manufacturing process provided by the present invention, the step of stacking a second silicon steel sheet on the cut surface of the core blank and enclosing the cut first silicon steel sheet in the middle of the core includes: Set two third position lines symmetrically distributed on both sides of the reference position line, and make the third position lines parallel to the second position line; Then, stack the second silicon steel sheet along the arc and from the second position mark to the third position mark.

[0010] Secondly, the present invention also provides a pulsed fan-edge diode magnet, comprising an iron core and a coil, wherein the iron core is manufactured using any one of the iron core manufacturing processes described above.

[0011] According to the present invention, a pulsed fan-edge diode magnet is provided, wherein the iron core comprises: A first stacking module, wherein the first stacking module is provided with a first groove extending along its length direction; The second stacking module is provided with a second groove extending along its length direction; The first wire groove has its opening at the bottom of the first stacking module, and the second wire groove has its opening at the top of the second stacking module. The first stacking module and the second stacking module are vertically connected and form a channel in the middle that passes through both ends of the iron core for installing the coil.

[0012] A pulsed fan-edge diode magnet provided by the present invention further includes: The first welding plate is attached to the inner circumferential sidewall of the iron core; The second welding plate is attached to the outer peripheral sidewall of the iron core; The third welding plate is attached to the top and bottom walls of the iron core; The first welding plate, the second welding plate, and the third welding plate all extend along the length of the iron core to both ends of the iron core.

[0013] According to the present invention, a pulsed fan-edge diode magnet further includes an end plate mounted on the end faces of the first stacking module and the second stacking module; The end plate is connected to the first welding plate, the second welding plate, and the third welding plate, respectively.

[0014] According to the present invention, a pulsed fan-edge diode magnet further includes a first connector, wherein a plurality of the first connectors are mounted on the first solder plate and the second solder plate, for threading bolts to connect the first stacking module and the second stacking module.

[0015] According to the present invention, a pulsed fan-edge diode magnet further includes a second connector, one end of which is connected to the end plate and the other end of which is connected to the coil.

[0016] The above-described one or more technical solutions of this invention have at least one of the following technical effects: 1. By optimizing the core manufacturing process, the ends of the core are formed from complete silicon steel sheets, thus avoiding the problem of tearing the sheets during the core remagnetization process. Furthermore, by using end plates and welding plates to fix both ends of the silicon steel sheets simultaneously, the problem of the ends of the core breaking apart during use can be avoided, thereby improving the magnetic field stability and magnetic field accuracy of the fan-edge pulse diode magnet.

[0017] 2. The core manufacturing process of this application can optimize the integrity of the magnetic circuit and the uniformity of the magnetic field distribution. Through the "envelope" stacking design, the first silicon steel sheet that is cut is embedded in the middle of the core, and the end is composed of a continuous and complete second silicon steel sheet. Structurally, it eliminates the problem of discontinuous magnetic circuit at the end caused by cutting in the traditional process. It not only enhances the integrity and structural rigidity of the core, but also reduces the local magnetic reluctance change caused by the shedding or displacement of loose sheets. It can effectively suppress magnetic field fluctuations under pulse working conditions and improve the repeatability and long-term stability of the magnetic field.

[0018] In addition to the technical problems solved by the present invention, the technical features of the technical solutions constituted by the present invention, and the advantages brought about by the technical features of these technical solutions as described above, other technical features of the present invention and the advantages brought about by these technical features will be further explained in conjunction with the accompanying drawings, or will be learned through the practice of the present invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram showing the location markings for the existing iron core manufacturing process.

[0021] Figure 2 This is a schematic diagram of the position markings for the core manufacturing process provided in an embodiment of the present invention.

[0022] Figure 3 This is a three-dimensional structural diagram of a pulsed fan-side diode magnet provided in an embodiment of the present invention.

[0023] Figure 4 This is a three-dimensional structural diagram of the second stacking module provided in an embodiment of the present invention.

[0024] Figure 5 This is a top view of the second stacking module provided in an embodiment of the present invention.

[0025] Figure 6 This is a schematic diagram of the magnetization process of an iron core provided in an embodiment of the present invention.

[0026] Figure label: 10. Iron core; 11. First stacking module; 12. Second stacking module; 20. Coil; 30. First solder plate; 40. Second solder plate; 50. Third solder plate; 60. End plate; 70. First connector; 80. Second connector. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0028] like Figure 1As shown, the current manufacturing process for the core of the fan-edge pulsed diode magnet is as follows: silicon steel sheets are stacked from the reference position mark towards the first position mark to create a core blank; then, the core blank is cut at the end along the second position mark to form a fan-shaped core. Therefore, many incomplete fragments are left at both ends of the core due to the cutting. During later magnetization repair, this can easily lead to fragment tearing, making it impossible to process according to the design drawings. During use, these fragments are also prone to detaching, which can alter the magnetic field of the fan-edge pulsed diode magnet, affecting the accelerator beam quality and even causing equipment malfunctions.

[0029] Sometimes, in order to adjust the magnetic field distribution to better guide the beam deflection, it is also necessary to perform magnetization processing at the ends of the iron core. For example... Figure 6 As shown, the magnetization processing area is located in the middle of the iron core end face. Magnetization processing involves cutting the edges of the iron core into multiple bevels with different angles. Because the cut silicon steel sheets no longer maintain their original intact state, the iron core is prone to beveling and tearing during magnetization processing, which further exacerbates the shedding of loose sheets, affecting the long-term operation of the magnet and the accuracy of the magnet's magnetic field.

[0030] To address the aforementioned problems, an iron core manufacturing process is described in the embodiments of the present invention.

[0031] like Figure 2 As shown, the main steps in the iron core manufacturing process include: S1. Using first silicon steel sheets stacked along an arc to form an iron core blank with arc-shaped sidewalls; S2. Cut the two ends of the core blank according to the preset pole face angle to make the core blank fan-shaped; S3. Stack the second silicon steel sheet on the cut surface of the iron core blank, and wrap the cut first silicon steel sheet in the middle of the iron core.

[0032] Furthermore, the step of stacking first silicon steel sheets along an arc to form an iron core blank with arc-shaped sidewalls includes: setting a reference position mark on the midline of the arc, and then setting two first position marks symmetrically distributed on both sides of the reference position mark.

[0033] When making the core blank, the first silicon steel sheet is stacked along the arc and from the reference position mark to the first position mark, so that the end of the core blank is flush with the first position mark.

[0034] Furthermore, the step of cutting both ends of the core blank according to a preset pole face angle includes: The pole face rotation angle of the core blank is set based on the required deflection angle of the beam. Two second position marks are set symmetrically distributed on both sides of the reference position mark according to the pole face rotation angle. The end of the core blank is cut along the second position marks.

[0035] Furthermore, the step of stacking the second silicon steel sheet on the cut surface of the iron core blank and enclosing the cut first silicon steel sheet in the middle of the iron core includes: setting two third position marks symmetrically distributed on both sides of the reference position mark, and making the third position marks parallel to the second position mark; Then, stack the second silicon steel sheet along the arc and from the second position mark to the third position mark.

[0036] like Figure 5 As shown, by employing the above-described manufacturing process, the fragmented area formed by the incomplete first silicon steel sheet due to cutting is transferred from the end of the iron core to the middle of the iron core, allowing the complete second silicon steel sheet to form the end of the iron core. This ensures that the magnetization repair is performed on the complete second silicon steel sheet, avoiding the problems of shaving and tearing. The complete end silicon steel sheet is more conducive to subsequent precision machining (such as shaving, chamfering, etc.), which can further improve the geometric accuracy of the magnetic pole surface. Combined with the optimized welding plate and end plate fixing system, the vibration and noise of the magnet under strong pulse excitation are effectively controlled, and the overall electromagnetic performance is improved simultaneously.

[0037] Subsequently, welding plates are welded to the inner circumference, outer circumference, top side and bottom side of the iron core 10, and end plates 60 are installed at the ends of the iron core 10. The ends of the welding plates are then welded together with the end plates 60 to form a fixed structure for the iron core 10.

[0038] Specifically, when manufacturing the iron core 10, an arc segment is first designed based on the beam deflection radius.

[0039] Then, a reference position line is set on the midline of the arc, and two first position lines are set symmetrically distributed on both sides of the reference position line at both ends of the arc segment. The first position lines are parallel to the reference position line.

[0040] Next, along the arc and starting from the reference position mark, the first silicon steel sheets are stacked to both sides of the reference position mark to form the core blank. This continues until the end face of the core blank is flush with the first position mark.

[0041] Then, the pole face angle of the core blank is set according to the required deflection angle of the beam. Next, a second position mark is set on the core blank based on the pole face angle and the first position mark: using the intersection of the first position mark and the outer peripheral wall of the core blank as the endpoint, and half the size of the pole face angle as the angle between the second and first position marks, the second position marks are drawn at both ends of the core blank. Finally, the ends of the core blank are cut along the second position marks.

[0042] Because the second position marking line is inclined to the first position marking line, the end face of the core blank, which uses the cross-section of the first silicon steel sheet as its end face, changes after cutting. Therefore, the end face of the cut core blank must be used as the cross-section to manufacture the second silicon steel sheet.

[0043] Next, a third position mark is set on the outside of the core blank: taking the intersection of the first position mark and the inner circumferential wall of the core blank as the endpoint, the third position mark is drawn in a direction parallel to the second position mark. The two third position marks are symmetrically distributed on both sides of the reference position mark.

[0044] Next, using a second silicon steel sheet, starting from the end face of the cut core blank, the second silicon steel sheet is stacked along the arc towards the third position mark, finally forming a core 10 that meets the requirements.

[0045] To ensure a stable connection of the iron core 10, a fixing structure can be provided on the outside of the iron core 10. Specifically, welding plates are welded to the inner circumference, outer circumference, top side and bottom side of the iron core 10, and end plates 60 are installed at the ends of the iron core 10, and the ends of the welding plates are welded together with the end plates 60.

[0046] In this embodiment, by optimizing the core manufacturing process, the ends of the core 10 can be formed from complete silicon steel sheets. This allows welding plates to be used on both the inner and outer circumferences of the core 10 to fix both ends of the silicon steel sheets simultaneously, avoiding the problem of loose sheets at the ends of the core 10 during processing and use. This improves the magnetic field stability and magnetic field accuracy of the fan-edge pulse diode magnet.

[0047] Based on the above embodiments, another embodiment of the present invention introduces a pulsed fan-edge diode magnet.

[0048] The pulsed fan-edge diode magnet includes an iron core 10 and a coil 20. The iron core 10 is manufactured using any of the iron core manufacturing processes described above.

[0049] Furthermore, such as Figure 3 and Figure 4 As shown, the iron core 10 mainly includes a first stacking module 11 and a second stacking module 12.

[0050] The first stacking module 11 is provided with a first groove extending along its length direction. The second stacking module 12 is provided with a second groove extending along its length direction.

[0051] The opening of the first wire groove is located at the bottom of the first stacking module 11. The opening of the second wire groove is located at the top of the second stacking module 12. The first stacking module 11 and the second stacking module 12 are joined vertically to form a complete iron core 10. Furthermore, after the first stacking module 11 and the second stacking module 12 are joined, a channel is formed in the middle of the channel, passing through both ends of the iron core 10, for mounting the coil 20.

[0052] like Figure 1 and Figure 2As shown, coil 20 is wound according to the coil winding path shown in the figure.

[0053] Specifically, both the first stacking module 11 and the second stacking module 12 are formed by stacking "E"-shaped silicon steel sheets along an arc. The thickness of commonly used silicon steel sheets is no more than 1 mm. Common thicknesses of silicon steel sheets include 0.15 mm, 0.35 mm, 0.5 mm, and 1 mm.

[0054] The surface of the silicon steel sheet is coated with an insulating coating to further suppress eddy current losses and improve pulse response speed.

[0055] Furthermore, the pulsed fan-edge diode magnet also includes a first solder plate 30, a second solder plate 40, and a third solder plate 50.

[0056] The first welding plate 30 is attached to the inner peripheral side wall of the iron core 10. The second welding plate 40 is attached to the outer peripheral side wall of the iron core 10. The third welding plate 50 is attached to the top and bottom walls of the iron core 10.

[0057] The first welding plate 30, the second welding plate 40 and the third welding plate 50 all extend along the length of the iron core 10 to both ends of the iron core 10.

[0058] The pulsed fan-edge diode magnet also includes an end plate 60. The end plate 60 is mounted on the end faces of the first stacking module 11 and the second stacking module 12.

[0059] The end plate 60 is connected to the first welding plate 30, the second welding plate 40, and the third welding plate 50, respectively.

[0060] The pulsed fan-edge diode magnet also includes a first connector 70. The first solder plate 30 and the second solder plate 40 are each equipped with a plurality of the first connectors 70 for threading bolts to connect the first stacking module 11 and the second stacking module 12.

[0061] Furthermore, a positioning pin and a prestressed tie rod structure can be added between the first stacking module 11 and the second stacking module 12 to keep the iron core in a compressed state when subjected to pulsed electromagnetic force, preventing the first stacking module 11 and the second stacking module 12 from fretting wear. This allows the pulsed fan-edge diode magnet to maintain a compact structure while also possessing the characteristics of high magnetic field precision, high stability and high reliability, making it particularly suitable for modern particle accelerator devices with stringent requirements for magnetic field quality.

[0062] Furthermore, the pulsed fan-edge diode magnet also includes a second connector 80. One end of the second connector 80 is connected to the end plate 60, and the other end of the second connector 80 is connected to the coil 20.

[0063] In addition, the end of the second connector that connects to the coil can be designed as a strip structure with tension adjustment function to facilitate precise positioning and tension adjustment of the coil, thereby optimizing the magnetic field distribution.

[0064] The core in this embodiment adopts a core manufacturing process that optimizes the integrity of the magnetic circuit and the uniformity of the magnetic field distribution. Through an "envelope" stacking design, the first silicon steel sheet that has been cut is embedded in the middle of the core, and the end is composed of a continuous and complete second silicon steel sheet. This structurally eliminates the problem of discontinuous magnetic circuit at the end caused by cutting in traditional processes. It not only enhances the integrity and structural rigidity of the core, but also reduces the local magnetic reluctance changes caused by the shedding or displacement of loose sheets. It can effectively suppress magnetic field fluctuations under pulsed working conditions and improve the repeatability and long-term stability of the magnetic field.

[0065] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0066] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0067] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms are not limited to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A core manufacturing process, characterized in that, include: S1. Using first silicon steel sheets stacked along an arc to form an iron core blank with arc-shaped sidewalls; S2. Cut the two ends of the core blank according to the preset pole face angle to make the core blank fan-shaped; S3. Stack the second silicon steel sheet on the cut surface of the iron core blank, and wrap the cut first silicon steel sheet in the middle of the iron core.

2. The core manufacturing process according to claim 1, characterized in that, The process of stacking first silicon steel sheets along an arc to form a core blank with arc-shaped sidewalls includes: Set a reference position line on the midline of the arc, and then set two first position lines symmetrically distributed on both sides of the reference position line; When making the core blank, the first silicon steel sheet is stacked along the arc and from the reference position mark to the first position mark, so that the end of the core blank is flush with the first position mark.

3. The core manufacturing process according to claim 1 or 2, characterized in that, The step of cutting both ends of the core blank according to the preset pole face angle includes: The pole face rotation angle of the core blank is set based on the required deflection angle of the beam. Two second position marks are set symmetrically distributed on both sides of the reference position mark according to the pole face rotation angle. The end of the core blank is cut along the second position marks.

4. The core manufacturing process according to claim 3, characterized in that, The step of stacking a second silicon steel sheet on the cut surface of the iron core blank, and enclosing the cut first silicon steel sheet in the middle of the iron core, includes: Set two third position lines symmetrically distributed on both sides of the reference position line, and make the third position lines parallel to the second position line; Then, stack the second silicon steel sheet along the arc and from the second position mark to the third position mark.

5. A pulsed fan-edge diode magnet, comprising an iron core (10) and a coil (20), characterized in that, The iron core (10) is manufactured using the iron core manufacturing process described in any one of claims 1 to 4.

6. The pulsed fan-edge diode magnet according to claim 5, characterized in that, The iron core (10) includes: A first stacking module (11) is provided with a first groove extending along its length direction; The second stacking module (12) is provided with a second groove extending along its length direction; The slot of the first wire groove is located at the bottom of the first stacking module (11), and the slot of the second wire groove is located at the top of the second stacking module (12). The first stacking module (11) and the second stacking module (12) are connected vertically and form a channel in the middle that passes through both ends of the iron core (10) for installing the coil (20).

7. The pulsed fan-edge diode magnet according to claim 6, characterized in that, Also includes: The first welding plate (30) is attached to the inner circumferential sidewall of the iron core (10); The second welding plate (40) is attached to the outer peripheral sidewall of the iron core (10); The third welding plate (50) is attached to the top and bottom walls of the iron core (10); The first welding plate (30), the second welding plate (40) and the third welding plate (50) all extend along the length of the iron core (10) to both ends of the iron core (10).

8. The pulsed fan-edge diode magnet according to claim 7, characterized in that, It also includes end plates (60) mounted on the end faces of the first stacking module (11) and the second stacking module (12); The end plate (60) is connected to the first welding plate (30), the second welding plate (40), and the third welding plate (50) respectively.

9. The pulsed fan-edge diode magnet according to claim 8, characterized in that, It also includes a first connector (70), and each of the first welding plate (30) and the second welding plate (40) is equipped with a plurality of the first connectors (70) for threading bolts to connect the first stacking module (11) and the second stacking module (12).

10. The pulsed fan-edge diode magnet according to claim 8, characterized in that, It also includes a second connector (80), one end of which is connected to the end plate (60), and the other end of which is connected to the coil (20).