CN110773743A - Method for producing iron core from powder raw material - Google Patents

Method for producing iron core from powder raw material Download PDF

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Publication number
CN110773743A
CN110773743A CN201911032124.7A CN201911032124A CN110773743A CN 110773743 A CN110773743 A CN 110773743A CN 201911032124 A CN201911032124 A CN 201911032124A CN 110773743 A CN110773743 A CN 110773743A
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China
Prior art keywords
iron core
grinding
control module
raw materials
preset
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CN201911032124.7A
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Chinese (zh)
Inventor
程鹏
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Su Normal University Semiconductor Materials and Equipment Research Institute Pizhou Co Ltd
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Su Normal University Semiconductor Materials and Equipment Research Institute Pizhou Co Ltd
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Priority to CN201911032124.7A priority Critical patent/CN110773743A/en
Publication of CN110773743A publication Critical patent/CN110773743A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/16—Both compacting and sintering in successive or repeated steps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Powder Metallurgy (AREA)

Abstract

The invention belongs to the technical field of intelligent iron core manufacturing, and particularly relates to a method for preparing an iron core by using powder raw materials, which comprises the following steps: crushing the raw materials; performing false firing on the crushed raw materials; preparing the raw materials after the pseudo burning into an iron core green body; polishing the iron core green body; and sintering and molding the polished iron core green body to obtain the iron core, so that the iron core is prepared from powdery raw materials, and the yield of the iron core is improved.

Description

Method for producing iron core from powder raw material
Technical Field
The invention belongs to the technical field of intelligent iron core manufacturing, and particularly relates to a method for preparing an iron core by using a powder raw material.
Background
The iron core processing method has a great influence on the quality of the finished iron core, such as controlling the fineness of crushing of raw materials during the iron core processing, controlling the processing temperature, and the like, and the conventional iron core processing method is difficult to control. The control of each processing link in the processing process can effectively improve the yield of the iron core
Therefore, in view of the above technical problems, it is necessary to design a new method for manufacturing an iron core from a powder raw material.
Disclosure of Invention
The invention aims to provide a method for preparing an iron core by using a powder raw material.
In order to solve the above technical problems, the present invention provides a method for manufacturing an iron core from a powder raw material, comprising:
crushing the raw materials;
specifically, the grinding machine is controlled by the control module to grind the raw materials into powder with required size;
performing false firing on the crushed raw materials;
specifically, the control module controls the false burning furnace to perform false burning on the crushed raw materials;
preparing the raw materials after the pseudo burning into an iron core green body;
specifically, the control module controls the die device to press the raw materials after pseudo burning into an iron core green body;
polishing the iron core green body;
specifically, the control module controls the polishing device to polish the iron core green body; and
sintering and molding the polished iron core green body to obtain an iron core;
specifically, the control module controls the sintering furnace to sinter and form the polished iron core green body so as to obtain the iron core.
Further, the method for manufacturing an iron core from the powder raw material further includes:
the rotation speed of a grinding roller in the grinder is detected by a hall sensor.
Further, when the rotating speed is lower than the preset rotating speed, the control module controls a motor in the grinding mill to increase the rotating speed, so that the rotating speed of the grinding roll is increased to the preset rotating speed, and the raw material contained in the grinding disc of the grinding mill is ground into powder with the required size; and
when the rotating speed is higher than the preset rotating speed, the control module controls the motor in the grinding mill to reduce the rotating speed, so that the rotating speed of the grinding roll is reduced to the preset rotating speed, and the raw material contained in the grinding disc of the grinding mill is ground into powder with the required size.
Further, pressure data of the grinding rolls, the grinding discs and the raw materials in the grinding discs are detected through pressure sensors in the grinding mill;
the rocker arm in the grinding mill is controlled by the control module to drive the grinding roller to move on the grinding disc;
a rocker arm and a motor are connected through a telescopic cylinder in the grinding mill;
when the pressure exceeds the preset pressure, the control module controls the telescopic rod of the telescopic cylinder to contract so as to reduce the pressure to the preset pressure;
when the pressure is lower than the preset pressure, the control module controls the extension rod of the telescopic cylinder to extend so as to increase the pressure to the preset pressure.
Further, detecting the temperature of a combustion cavity in the false burning furnace through a temperature sensor in the false burning furnace;
when the temperature is lower than the preset temperature, the control module controls an air blower in the false burning furnace to increase the air intake in the burning cavity, so that the temperature in the burning cavity is increased to the preset temperature;
when the temperature is higher than the preset temperature, the spraying mechanism in the false combustion furnace is controlled by the control module to spray in the combustion chamber, and then the temperature in the combustion chamber is reduced to the preset temperature.
Further, a clamping mechanism in the polishing device is controlled by the control module to clamp the iron core green body; and
the rotating motor in the grinding device is controlled by the control module to drive the grinding head to rotate so as to grind the iron core green body clamped by the clamping mechanism.
The invention has the beneficial effects that the raw materials are crushed; performing false firing on the crushed raw materials; preparing the raw materials after the pseudo burning into an iron core green body; polishing the iron core green body; and sintering and molding the polished iron core green body to obtain the iron core, so that the iron core is prepared from powdery raw materials, and the yield of the iron core is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flow chart of a method for manufacturing an iron core from a powder raw material according to the present invention;
fig. 2 is a schematic block diagram of a specific structure involved in the method of manufacturing an iron core from a powder raw material according to the present invention;
fig. 3 is a schematic structural view of a specific structure involved in the method for manufacturing an iron core from a powder raw material according to the present invention.
In the figure:
1 is a grinding mill, 11 is a motor, 12 is a grinding roller, 13 is a pressure sensor, 14 is a telescopic cylinder, 15 is a rocker arm and 16 is a grinding disc;
and 2 is a Hall sensor.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Fig. 1 is a flow chart of a method for manufacturing an iron core from a powder raw material according to the present invention.
As shown in fig. 1, this example 1 provides a method for manufacturing an iron core from a powder raw material, comprising: crushing the raw materials; specifically, the grinding machine 1 is controlled by the control module to grind the raw materials into powder with required size; performing false firing on the crushed raw materials; specifically, the control module controls the false burning furnace to perform false burning on the crushed raw materials; preparing the raw materials after the pseudo burning into an iron core green body; specifically, the control module controls the die device to press the raw materials after pseudo burning into an iron core green body; polishing the iron core green body; specifically, the control module controls the polishing device to polish the iron core green body; sintering and molding the polished iron core green body to obtain an iron core; specifically, the control module controls the sintering furnace to sinter and form the polished iron core green body to obtain the iron core, so that the iron core is prepared from powdery raw materials, and the yield of the iron core is improved.
In this embodiment, the method for manufacturing an iron core from a powder raw material further includes: the hall sensor 2 detects the rotation speed of the mill roller 12 in the mill 1.
In this embodiment, when the rotation speed is lower than the preset rotation speed, the control module controls the motor 11 in the mill 1 to increase the rotation speed, so that the rotation speed of the mill roller 12 is increased to the preset rotation speed, and the raw material contained in the grinding disc 16 of the mill 1 is ground into powder with a required size; and when the rotating speed is higher than the preset rotating speed, controlling the motor 11 in the grinder 1 to reduce the rotating speed through the control module, so that the rotating speed of the grinding roller 12 is reduced to the preset rotating speed, and grinding the raw material contained in the grinding disc 16 of the grinder 1 into powder with the required size.
In the present embodiment, pressure data of the raw material in the mill roll 12, the grinding disc 16, and the grinding disc 16 is detected by the pressure sensor 13 in the mill 1; the rocker arm 15 in the grinder 1 is controlled by the control module to drive the grinding roller 12 to move on the grinding disc 16; a rocker arm 15 and a motor 11 are connected through a telescopic cylinder 14 in the grinding machine 1; when the pressure exceeds the preset pressure, the control module controls the telescopic rod of the telescopic cylinder 14 to contract so as to reduce the pressure to the preset pressure; when the pressure is lower than the preset pressure, the control module controls the extension of the telescopic rod of the telescopic cylinder 14 so as to increase the pressure to the preset pressure.
In the present embodiment, the temperature of the combustion chamber in the false burning furnace is detected by a temperature sensor in the false burning furnace; when the temperature is lower than the preset temperature, the control module controls an air blower in the false burning furnace to increase the air intake in the burning cavity, so that the temperature in the burning cavity is increased to the preset temperature; when the temperature is higher than the preset temperature, the spraying mechanism in the false combustion furnace is controlled by the control module to spray in the combustion chamber, and then the temperature in the combustion chamber is reduced to the preset temperature.
In the embodiment, a clamping mechanism in the grinding device is controlled by the control module to clamp the iron core green body; and controlling a rotating motor in the grinding device to drive the grinding head to rotate through the control module so as to grind the iron core green body clamped by the clamping mechanism.
Fig. 2 is a schematic block diagram of a specific structure involved in the method of manufacturing an iron core from a powder raw material according to the present invention;
fig. 3 is a schematic structural view of a specific structure involved in the method for manufacturing an iron core from a powder raw material according to the present invention.
As shown in fig. 2 and 3, in the present embodiment, the specific structure related to the method for manufacturing an iron core from a powder raw material includes:
the control module is used for controlling the grinding machine 1, the false burning furnace, the die device, the grinding device and the sintering furnace; the control module can be but is not limited to a PLC; the control module is adapted to control the grinder 1 to grind the raw material into powder of a desired size; the control module is suitable for controlling the false burning furnace to perform false burning on the crushed raw materials; the control module is suitable for controlling the die device to press the raw materials after the pseudo burning into an iron core green body; the control module is suitable for controlling the grinding device to grind the iron core green body; and the control module is suitable for controlling the sintering furnace to sinter and form the polished iron core green body, so that the iron core is manufactured by precisely crushed raw materials.
In this embodiment, the specific structure further includes: the Hall sensor is electrically connected with the control module; the Hall sensor 2 can adopt but is not limited to DN6851-D Hall sensor 2; the grinder 1 comprises: a motor 11 and a rolling roller 12 connected with the motor 11; the grinding roller 12 is adapted to crush the raw material (which may be alloy powder, and a powdery raw material with a desired size is obtained by crushing) contained in the grinding disc 16 of the grinding mill 1; the raw materials can adopt iron: 95.95-96.85% (e.g., 96.5%), aluminum: 0.15-0.2% (e.g., 0.17%), silicon: 2.9-3.5% (e.g., 3%), manganese: 0.1-0.35% (e.g. 0.33%), etc. (the components of the raw materials can be changed according to the application range of the iron core which is actually required, for example, the materials of the raw materials and the proportion of each material are changed), and the sum of the contents of the components is 100%; the hall sensor 2 is adapted to detect the rotation speed of the rolling roller 12, and when the rotation speed is lower than the preset rotation speed, the control module is adapted to control the motor 11 to increase the rotation speed, so that the rotation speed of the rolling roller 12 is increased to the preset rotation speed; when the rotating speed is higher than the preset rotating speed, the control module is adapted to control the motor 11 to decrease the rotating speed, so that the rotating speed of the rolling roller 12 decreases to the preset rotating speed; can drive through motor 11 and roll the roller 12 and rotate, make the rotational speed of rolling the roller 12 keep predetermineeing the rotational speed can be more accurate pulverize the raw materials into required size, realized that the precision of iron core raw materials is pulverized, the iron core quality that the raw materials that make after messenger pulverizes promotes.
In this embodiment, the grinder 1 further includes: a pressure sensor 13, a telescopic cylinder 14 and a rocker arm 15; the pressure sensor 13 can be but is not limited to an M3200 pressure transmitter; the hall sensor 2 can be installed on a fixed frame of the rocker arm 15, and a magnetic steel (not shown in the figure) is installed on the outer wall of the rolling roller 12, the magnetic steel faces the hall sensor 2, and in the rotating process of the rolling roller 12, the hall sensor 2 considers that the rolling roller 12 rotates one circle every time the magnetic steel approaches the hall sensor 2, so as to calculate the rotating speed of the rolling roller 12; the telescopic cylinder 14 is arranged between the rocker arm 15 and the motor 11; the rocker arm 15 is suitable for driving the grinding roller 12 to move on the grinding disc 16 so as to grind all raw materials contained in the grinding disc 16; the pressure sensor 13 is arranged at the bottom of the grinding disc 16 of the grinder 1 to detect pressure data of raw materials in the grinding disc 16, the grinding disc 12 and the grinding disc 16; when the pressure exceeds the preset pressure, the control module controls the telescopic rod of the telescopic cylinder 14 to contract so as to reduce the pressure to the preset pressure; when the pressure is lower than the preset pressure, the control module controls the extension of the telescopic rod of the telescopic cylinder 14 to increase the pressure to the preset pressure; through keeping pressure at preset pressure also can be accurate pulverize the raw materials into required size, realized the accurate of iron core raw materials and pulverized, the iron core quality that makes the raw materials after messenger's pulverization promotes.
In this embodiment, the temperature of the dummy furnace can be controlled according to actual needs; the false burning furnace comprises: the device comprises a temperature sensor, a combustion cavity, a blower and a spraying mechanism; the temperature sensor can be but is not limited to a thermocouple with a packaging material of high-temperature corundum; the false burning furnace is suitable for performing false burning on the raw materials crushed by the grinding machine 1; the temperature sensor is suitable for detecting the temperature of the combustion chamber; when the temperature is lower than the preset temperature, the control module is suitable for controlling the air blower to increase the air inlet volume in the combustion chamber, so that the temperature in the combustion chamber is increased to the preset temperature; when the temperature is higher than the preset temperature, the control module is suitable for controlling the spraying mechanism to spray in the combustion chamber, so that the temperature in the combustion chamber is reduced to the preset temperature; the effect of the false burning can be optimized by maintaining the temperature in the combustion chamber at the preset temperature.
In this embodiment, the grinding device includes: the clamping mechanism, the grinding head and the rotating motor (all shown in the figure); the grinding device can directly adopt the prior art, and the surface of the iron core green body is smoother through grinding, so that the surface of the sintered iron core is smoother; the grinding head is connected with the rotating motor; the control module is suitable for controlling the clamping mechanism to clamp the iron core green body; the control module is suitable for controlling the rotating motor to drive the grinding head to rotate so as to grind the iron core green body clamped by the clamping mechanism.
In conclusion, the invention crushes the raw materials; performing false firing on the crushed raw materials; preparing the raw materials after the pseudo burning into an iron core green body; polishing the iron core green body; and sintering and molding the polished iron core green body to obtain the iron core, so that the iron core is prepared from powdery raw materials, and the yield of the iron core is improved.
The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (6)

1. A method of making an iron core from a powdered feedstock, comprising:
crushing the raw materials;
specifically, the grinding machine is controlled by the control module to grind the raw materials into powder with required size;
performing false firing on the crushed raw materials;
specifically, the control module controls the false burning furnace to perform false burning on the crushed raw materials;
preparing the raw materials after the pseudo burning into an iron core green body;
specifically, the control module controls the die device to press the raw materials after pseudo burning into an iron core green body;
polishing the iron core green body;
specifically, the control module controls the polishing device to polish the iron core green body; and
sintering and molding the polished iron core green body to obtain an iron core;
specifically, the control module controls the sintering furnace to sinter and form the polished iron core green body so as to obtain the iron core.
2. The method for manufacturing an iron core from a powdery raw material according to claim 1,
the method for preparing the iron core from the powder raw material further comprises:
the rotation speed of a grinding roller in the grinder is detected by a hall sensor.
3. The method for manufacturing an iron core from a powder raw material according to claim 2,
when the rotating speed is lower than the preset rotating speed, the motor in the grinding mill is controlled by the control module to increase the rotating speed, so that the rotating speed of the grinding roll is increased to the preset rotating speed, and the raw materials contained in the grinding disc of the grinding mill are ground into powder with the required size; and
when the rotating speed is higher than the preset rotating speed, the control module controls the motor in the grinding mill to reduce the rotating speed, so that the rotating speed of the grinding roll is reduced to the preset rotating speed, and the raw material contained in the grinding disc of the grinding mill is ground into powder with the required size.
4. The method for manufacturing an iron core from a powder raw material according to claim 3,
detecting pressure data of the grinding rolls, the grinding discs and the raw materials in the grinding discs through pressure sensors in the grinding mill;
the rocker arm in the grinding mill is controlled by the control module to drive the grinding roller to move on the grinding disc;
a rocker arm and a motor are connected through a telescopic cylinder in the grinding mill;
when the pressure exceeds the preset pressure, the control module controls the telescopic rod of the telescopic cylinder to contract so as to reduce the pressure to the preset pressure;
when the pressure is lower than the preset pressure, the control module controls the extension rod of the telescopic cylinder to extend so as to increase the pressure to the preset pressure.
5. The method for manufacturing an iron core from a powdery raw material according to claim 1,
detecting the temperature of a combustion cavity in the false burning furnace through a temperature sensor in the false burning furnace;
when the temperature is lower than the preset temperature, the control module controls an air blower in the false burning furnace to increase the air intake in the burning cavity, so that the temperature in the burning cavity is increased to the preset temperature;
when the temperature is higher than the preset temperature, the spraying mechanism in the false combustion furnace is controlled by the control module to spray in the combustion chamber, and then the temperature in the combustion chamber is reduced to the preset temperature.
6. The method for manufacturing an iron core from a powdery raw material according to claim 1,
a clamping mechanism in the polishing device is controlled by a control module to clamp the iron core green body; and
the rotating motor in the grinding device is controlled by the control module to drive the grinding head to rotate so as to grind the iron core green body clamped by the clamping mechanism.
CN201911032124.7A 2019-10-28 2019-10-28 Method for producing iron core from powder raw material Pending CN110773743A (en)

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Application Number Priority Date Filing Date Title
CN201911032124.7A CN110773743A (en) 2019-10-28 2019-10-28 Method for producing iron core from powder raw material

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Application Number Priority Date Filing Date Title
CN201911032124.7A CN110773743A (en) 2019-10-28 2019-10-28 Method for producing iron core from powder raw material

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4312409B4 (en) * 1992-04-16 2004-11-18 Murata Mfg. Co., Ltd., Nagaokakyo Adjustable capacitor
CN101521071A (en) * 2008-11-13 2009-09-02 中南大学 Fabrication method of broad-band high-conductive manganese-zinc ferrite magnetic core
CN107293398A (en) * 2016-04-01 2017-10-24 上海梅山钢铁股份有限公司 A kind of preparation method of permanent-magnet ferrite material
CN109433375A (en) * 2018-11-13 2019-03-08 中磁电科有限公司 A kind of common mode inductance full-automatic processing system
CN109448981A (en) * 2018-11-13 2019-03-08 中磁电科有限公司 A kind of magnet ring processing method
CN109494069A (en) * 2018-11-13 2019-03-19 中磁电科有限公司 A kind of full-automatic magnet ring system of processing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4312409B4 (en) * 1992-04-16 2004-11-18 Murata Mfg. Co., Ltd., Nagaokakyo Adjustable capacitor
CN101521071A (en) * 2008-11-13 2009-09-02 中南大学 Fabrication method of broad-band high-conductive manganese-zinc ferrite magnetic core
CN107293398A (en) * 2016-04-01 2017-10-24 上海梅山钢铁股份有限公司 A kind of preparation method of permanent-magnet ferrite material
CN109433375A (en) * 2018-11-13 2019-03-08 中磁电科有限公司 A kind of common mode inductance full-automatic processing system
CN109448981A (en) * 2018-11-13 2019-03-08 中磁电科有限公司 A kind of magnet ring processing method
CN109494069A (en) * 2018-11-13 2019-03-19 中磁电科有限公司 A kind of full-automatic magnet ring system of processing

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
于子捷: "《电机实践指导书》", 31 August 2013, 中国矿业大学出版社 *
许学勤: "《食品工厂机械与设备》", 30 November 2018, 中国轻工业出版社 *

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