WO2009055981A1 - A nanometer iron powder specially used in conversion of electromagnetism energy - Google Patents

A nanometer iron powder specially used in conversion of electromagnetism energy Download PDF

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Publication number
WO2009055981A1
WO2009055981A1 PCT/CN2007/003523 CN2007003523W WO2009055981A1 WO 2009055981 A1 WO2009055981 A1 WO 2009055981A1 CN 2007003523 W CN2007003523 W CN 2007003523W WO 2009055981 A1 WO2009055981 A1 WO 2009055981A1
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Prior art keywords
iron powder
powder
nanometer iron
powder particles
energy conversion
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PCT/CN2007/003523
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French (fr)
Chinese (zh)
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Huimin Wang
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Huimin Wang
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/20—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/22—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/24—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/05—Metallic powder characterised by the size or surface area of the particles
    • B22F1/052—Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/16—Metallic particles coated with a non-metal
    • 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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • 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
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy

Definitions

  • the invention relates to a nano-scale iron powder, in particular to a special iron powder for electromagnetic energy conversion. Background technique
  • Electromagnetic magnetic energy converters can be seen everywhere in all walks of life in society, from satellites in space to televisions in ordinary people's homes, to rockets, spaceships, small electronic watches, MP3s, electromagnetic energy conversion everywhere. Body exists.
  • the main problems of the international and domestic electromagnetic magnetic energy converter technology are the common electromagnetic magnetic energy conversion bodies used in various industries.
  • the general use range is from 10KHZ to -40KHZ.
  • the electromagnetic magnetic energy converters generally have the phenomenon that the H (Henry) value of the inductance L and the C (Coulomb) value of the electric energy Q are low.
  • the inductance of the general electromagnetic magnetic energy conversion body is generally 28H-30H. Between 3, 8C ⁇ 6. 3C. Due to the generally low inductance and power, it leads to insurmountable defects such as small power, large size, and poor performance.
  • Patent application No. 2006100481685 describes a metal nano-powder zero-boundary particle cutting production process
  • the patent application describes a new zero-boundary particle cutting metal nano-powder material process, taking iron powder as an example, the steps include, The iron powder is placed at a temperature of 10 °C ⁇ 20 °C at zero boundary processing temperature, and then the iron powder particles are cut at a high speed, controlled at 4000 ⁇ 6000 times per minute, and then the iron powder particles after cutting are 4000 ⁇ 6000 rpm. /min high frequency grinding, physical reduction, surface treatment, Get the product and finally sort it.
  • Patent application No. 2006101620469 discloses a metal micro- and nano-particle coating process, and the technical solution of the application can form a high-quality anti-oxidation protective layer with a thickness of 1 nm - 3 nm on the surface of the metal powder material, hereinafter referred to as "Nitrogen hydrogen coating method".
  • the present invention provides a special iron powder for electromagnetic energy conversion.
  • the invention is realized by the following technical solution, a special iron powder for electromagnetic energy conversion, which is prepared by the following method, using a metal nano powder zero-boundary particle cutting production process at 25° (: ⁇ 5 ° C, high)
  • the particle distribution is relatively dispersed powder material, and then the surface of the powder particle is permeated with a thickness of “Nitrogen Hydrogen Coating Method”: Inn! ⁇ 3nm anti-oxidation layer, and then surface-polishing the iron powder particles after sorting, which can fundamentally solve the current inductance of the world electromagnetic magnetic energy converter technology; H, electricity; C bias Low problem.
  • Another advantage of the present technology is that the magnetic field density increased by 50. 12%. 4%, in the process of producing electromagnetic magnetic energy conversion body can significantly reduce the cost of about 61.73%.
  • Embodiment 1 A special iron powder for electromagnetic energy conversion is prepared by the following method, using a metal nano-powder zero-boundary particle cutting production process described in Patent Application No. 2006100481685, at 25 ° C, high frequency
  • the cutting time 3 ⁇ 4 setting produces nano iron powder particles at 3000 times per minute.
  • D3 220. 56nm.
  • D50 400.
  • the particle distribution is relatively dispersed powder material.
  • a metal micro- and nano-particle coating process disclosed in Patent Application No. 2006101620469 that is, a "nitrogen-hydrogen coating method" is coated on the surface of the powder particles with an anti-oxidation layer having a thickness of 1 nm to 3 nm, and then , the surface of the iron powder particles after sorting is polished.
  • the "cyclone classification process" can be selected.
  • the process mainly utilizes the surface area of the iron powder particles and the parabolic curve of the iron powder particles under the force and the falling speed of the iron powder particles in the cyclone container. time. Effective classification of iron powder particles of different diameters in a closed container using artificial wind and speed.
  • the nano-iron powder cyclone grading equipment is divided into four stages, each stage is equipped with a 4KW speed-regulating motor and a 20KW negative-pressure motor. Firstly, the negative pressure motor is started to form a negative pressure state in the various stages of the classification equipment, and then the first stage is opened respectively; "A 4-stage cyclone classifier motor forms an axial flow cyclone in the respective closed containers. The limited amount of iron powder to be inhaled is required. The first closed container, the iron powder particles having the largest particle diameter are sorted in the axial cyclone, and the remaining iron powder particles enter the second closed container, and the desired iron powder particles are classified in the cyclone larger than the first axial flow, in the second order.
  • the third level is graded step by step, so that four iron powder products with relatively concentrated particle intervals can be obtained at the same time.
  • a metal micro- and nano-particle coating process disclosed in Patent Application No. 2006101620469 that is, a "nitrogen-hydrogen coating method" is coated on the surface of the powder particles with an anti-oxidation layer having a thickness of 1 nm to 3 nm, and then , the surface of the iron powder particles after sorting is polished.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Soft Magnetic Materials (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

A nanometer iron powder specially used in conversion of electromagnetism energy is produced, wherein using critical particles cutting process of nanometer metal powder at 25°C~5°C temperature and setting the high frequency cutting times at 3000-3500 times per minute to produce nanometer iron powder, then grading the powder to obtain powder with relatively dispersed granulometric distribution that is D3=200.56nm, D10=300.89nm, D25=360.06nm, D50=400.19nm, D75=520.11nm, D97=600.73nm and S.S.A=0.02, finally permeating a layer of oxidation resistant coating at the surface of the powder particle by nitrogen and helium coating process. The nanometer iron powder produced in the application solves the problem of low inductance and electric quantity existing in the technology of electromagnetism energy converter.

Description

技术领域  Technical field
本发明涉及一种纳米级别铁粉， 具体为一种电磁能量转换专用铁粉。 背景技术  The invention relates to a nano-scale iron powder, in particular to a special iron powder for electromagnetic energy conversion. Background technique
目前， 世界的前沿科技中， 最为耀眼的是 "电能无线输送系统 "和 "电磁 能量转换系统" 。 在二 00七年六月份， 美国科学院发表了 "室内微弱电能无 线输送系统"试验成功的消息， 轰动了全球。 "电能无线输送系统 "的关键在 于电磁能量转换体 L、 Q的性能， 而电磁磁能量转换体性能的好坏其关键又在 于生产电磁磁能量转换体的主要原材料-铁粉。 电磁磁能量转换体在目前社会 各行各业中随处可见， 上至太空中的卫星， 下至普通百姓家中的电视， 大到火 箭、 太空飞船， 小到电子 表、 MP3无处不见电磁磁能量转换体存在。  At present, among the world's cutting-edge technologies, the most dazzling are the "electric energy wireless transmission system" and the "electromagnetic energy conversion system". In June 2007, the American Academy of Sciences published a successful test on the "Infrared Weak Electrical Energy Wireless Transmission System", which sensationalized the world. The key to the "electric energy wireless transmission system" lies in the performance of the electromagnetic energy conversion body L, Q, and the key to the performance of the electromagnetic magnetic energy conversion body is the production of the main raw material of the electromagnetic magnetic energy conversion body - iron powder. Electromagnetic magnetic energy converters can be seen everywhere in all walks of life in society, from satellites in space to televisions in ordinary people's homes, to rockets, spaceships, small electronic watches, MP3s, electromagnetic energy conversion everywhere. Body exists.
目前国际和国内电磁磁能量转换体技术存在的主要问题,在各行各业中使 用和常见的电磁磁能量转换体。 一般使用范围在 10KHZ --— 40KHZ的范围。 在 卫星导航、计算机驱动、 电子对抗、输配电系统、无线电收发、卫星电话系统、 卫星遥测、电磁屏蔽、磁能释放、次声波攻击、 电视信号接受、 电子成相系统、 电磁成相系统等等中的电磁磁能量转换体都普遍存在着电感 L的 H (亨利）值 和电能 Q的 C (库仑）值偏低的现象， 目前， 一般民用电磁磁能量转换体的电 感量普遍在 28H— 30H之间，其电量一般在 5. 8C~6. 3C之间。 由于电感量和电 量的普遍偏低， 导致了功率镏小、 体积庞大、 性能不佳等难以克服的缺陷。  At present, the main problems of the international and domestic electromagnetic magnetic energy converter technology are the common electromagnetic magnetic energy conversion bodies used in various industries. The general use range is from 10KHZ to -40KHZ. In satellite navigation, computer drive, electronic countermeasures, transmission and distribution systems, radio transceivers, satellite telephone systems, satellite telemetry, electromagnetic shielding, magnetic energy release, infrasound attack, television signal reception, electronic phase forming systems, electromagnetic phase forming systems, etc. The electromagnetic magnetic energy converters generally have the phenomenon that the H (Henry) value of the inductance L and the C (Coulomb) value of the electric energy Q are low. At present, the inductance of the general electromagnetic magnetic energy conversion body is generally 28H-30H. Between 3, 8C~6. 3C. Due to the generally low inductance and power, it leads to insurmountable defects such as small power, large size, and poor performance.
专利申请号为 2006100481685 记载了一种金属纳米粉体零界颗粒切割生 产工艺， 该专利申请记载了一种全新的零界颗粒切割金属纳米粉体材料工艺， 以铁粉为例， 步骤包括， 将铁粉置于一 10°C^20°C的零界加工温度状态下， 然 后对铁粉颗粒进行高速切割， 每分钟控制在 4000〜6000次， 然后对切割后的 铁粉颗粒 4000〜6000转 /分钟的高频研磨， 再进行物理还原， 表面处理， 即可 得到产品， 最后分级分选。能够加工出不同纳米级别的铁粉， 利用该方法生产 出的特定颗粒直径的铁粉具有'以往技术生产出的材料不同的优异特性，该工艺 生产出的各个不同级别的纳米铁粉特性有着明显的区别，经过分级筛选和配比 后可广泛用于不同行业或领域。专利申请号为 2006101620469公开了一种金属 微、纳米颗粒包覆工艺， ^申请的技术方案能在金属粉体材料的表面形成一层 厚度为 lnm— 3nm的高质量防氧化保护层， 以下称为 "氮氢包覆法"。 Patent application No. 2006100481685 describes a metal nano-powder zero-boundary particle cutting production process, the patent application describes a new zero-boundary particle cutting metal nano-powder material process, taking iron powder as an example, the steps include, The iron powder is placed at a temperature of 10 °C^20 °C at zero boundary processing temperature, and then the iron powder particles are cut at a high speed, controlled at 4000~6000 times per minute, and then the iron powder particles after cutting are 4000~6000 rpm. /min high frequency grinding, physical reduction, surface treatment, Get the product and finally sort it. The iron powder of different nanometer grades can be processed, and the iron powder of specific particle diameter produced by the method has the excellent characteristics of the materials produced by the prior art, and the characteristics of the nano iron powders produced by the process are obvious. The difference can be widely used in different industries or fields after grading screening and matching. Patent application No. 2006101620469 discloses a metal micro- and nano-particle coating process, and the technical solution of the application can form a high-quality anti-oxidation protective layer with a thickness of 1 nm - 3 nm on the surface of the metal powder material, hereinafter referred to as "Nitrogen hydrogen coating method".
发明内容  Summary of the invention
本发明为了解决现有技术中存在的电磁磁能量转换体功率偏小、 体积庞 大、 性能不佳等问题而提^^了一种电磁能量转换专用铁粉。  In order to solve the problems of small power, large volume, poor performance and the like of the electromagnetic magnetic energy conversion body existing in the prior art, the present invention provides a special iron powder for electromagnetic energy conversion.
本发明是由以下技术方案实现的，一种电磁能量转换专用铁粉，是由以下 方法制备， 利用金属纳米粉体零界颗粒切割生产工艺在 25° (：〜 5°C的情况下， 高频切割次数设定在每分钟 3000次—— 3500次的情况下生产纳米铁粉颗粒， 再分选出 D3=220. 56nm、 D10=300. 89nm、 D25二 360. 06nm D50=400. 19nm D75=520. llnm、 D97=600. 73nm、 S. S. A=0. 02的颗粒分布相对分散的粉体材料， 再用 "氮氢包覆法"在粉体颗粒的表面渗透包覆一层厚度为： Inn！〜 3nm的防 氧化层，而后对分选后的铁粉颗粒进行表面抛光处理，这样就可以从根本上解 决了目前世界电磁磁能量转换体技术存在的电感量； H、 电量; C偏低的问题。  The invention is realized by the following technical solution, a special iron powder for electromagnetic energy conversion, which is prepared by the following method, using a metal nano powder zero-boundary particle cutting production process at 25° (: 〜 5 ° C, high) The number of frequency cuts is set at 3000 times per minute - 3500 times to produce nano iron powder particles, and then D3 = 220. 56 nm, D10 = 300. 89 nm, D25 two 360. 06 nm D50 = 400. 19 nm D75. =520. llnm, D97=600. 73nm, SS A=0. 02 The particle distribution is relatively dispersed powder material, and then the surface of the powder particle is permeated with a thickness of “Nitrogen Hydrogen Coating Method”: Inn!~ 3nm anti-oxidation layer, and then surface-polishing the iron powder particles after sorting, which can fundamentally solve the current inductance of the world electromagnetic magnetic energy converter technology; H, electricity; C bias Low problem.
本发明技术优势：  Technical advantages of the invention:
1、 本技术的最大优势在于电感量从目前的 28H— 30H 提高到 38. 76H --- 42. 11H,增加 40%。电量从目前的 5. 8C— 6. 3C提高到 8. 65C— 9. 41C, 增加 49%。  1. The biggest advantage of this technology is that the inductance increases from the current 28H-30H to 38.76H --- 42. 11H, an increase of 40%. The power increased from the current 5. 8C - 6. 3C to 8. 65C - 9. 41C, an increase of 49%.
2、 在同样的电感量和电量的情况下， 电磁磁能量转换体的体积缩小了 2. In the case of the same inductance and power, the volume of the electromagnetic magnetic energy converter is reduced.
70%。 70%.
3、 本技术的另一优势在于， 磁力线密度比以往增加了 50. 12%。 4、 在生产电磁磁能量转换体的过程中可以大幅度降低成本约 61. 73%。3以上。 Another advantage of the present technology is that the magnetic field density increased by 50. 12%. 4%, in the process of producing electromagnetic magnetic energy conversion body can significantly reduce the cost of about 61.73%.
5、 同样性能的电磁磁能量转换体的市场价格提高了 57. 26%。 5. The market price of electromagnetic magnetic energy converters of the same performance increased by 57.26%.
6、 在同样生产设施的情况下， 生产效率提高了 3. 12倍。  6. In the case of the same production facilities, the production efficiency has increased by 3.12 times.
具体实施方式  detailed description
实施例 1， 一种电磁能量转换专用铁粉， 是由以下方法制备， 利用专利申 请号为 2006100481685 记载的一种金属纳米粉体零界颗粒切割生产工艺， 在 25°C的情况下， 高频切割次 ¾设定在每分钟 3000次的情况下生产纳米铁粉颗 粒。再利用我自创的"旋风分级工艺 "分别分选出（400 nm为例） D3=220. 56nm. D10=300. 89nm 、 D25=360. 06nm D50=400. 19nm D75=520. llnm 、 D97=600. 73nm、 S. S. A二 0. 02 的颗粒分布相对分散的粉体材料。 再用专利申请 号为 2006101620469公开的一种金属微、纳米颗粒包覆工艺即 "氮氢包覆法"， 在粉体颗粒的表面渗透包覆一层厚度为 lnm〜3nm的防氧化层， 而后， 对分选 后的铁粉颗粒进行表面抛光处理。  Embodiment 1 A special iron powder for electromagnetic energy conversion is prepared by the following method, using a metal nano-powder zero-boundary particle cutting production process described in Patent Application No. 2006100481685, at 25 ° C, high frequency The cutting time 3⁄4 setting produces nano iron powder particles at 3000 times per minute. Then use my own "cyclone grading process" to separate (400 nm as an example) D3 = 220. 56nm. D10 = 300. 89nm, D25 = 360. 06nm D50 = 400. 19nm D75 = 520. llnm, D97 =600. 73 nm, SS A 0.02. The particle distribution is relatively dispersed powder material. Further, a metal micro- and nano-particle coating process disclosed in Patent Application No. 2006101620469, that is, a "nitrogen-hydrogen coating method", is coated on the surface of the powder particles with an anti-oxidation layer having a thickness of 1 nm to 3 nm, and then , the surface of the iron powder particles after sorting is polished.
对铁粉的分选可以选择"旋风分级工艺"， 该工艺主要利用铁粉颗粒的受 力表面积和铁粉颗粒在受力情况下的抛物曲线以及铁粉颗粒在旋风容器中的 自重下落速度、时间。利用人工风力和速度在一密闭容器中对直径不同的铁粉 颗粒进行有效的分级。  For the separation of iron powder, the "cyclone classification process" can be selected. The process mainly utilizes the surface area of the iron powder particles and the parabolic curve of the iron powder particles under the force and the falling speed of the iron powder particles in the cyclone container. time. Effective classification of iron powder particles of different diameters in a closed container using artificial wind and speed.
纳米铁粉旋风式分级设备分为四级， 每级配置 4KW调速电机一台， 同时 配置 20KW负压电机一台。 首先开动负压电机在分级设备的各级容器中形成负 压状态， 而后分别开启 1级; "一 4级旋风分级器电机在各自密闭容器中形成轴 流旋风。将需要分级的铁粉限量吸入第一密闭容器，在轴流旋风中分选出颗粒 直径最大的铁粉颗粒，剩余铁粉颗粒进入第二密闭容器，在大于第一轴流旋风 中分级出所需铁粉颗粒， 顺序二、三级进行逐级分级。这样可以同时得到四个 颗粒区间相对集中的铁粉产品。 实施例 2 , —种电磁能量转换专用铁粉， 是由以下方法制备， 利用专利申 请号为 2006100481685记载的一种金属纳米粉体零界颗粒切割生产工艺， 在 5 °C的情况下，高频切割次数设定在每分钟 3500次的情况下生产纳米铁粉颗粒。 再利用我自创的 "旋风分级工艺"分别分选出 （400 nm为例） D3 220. 56nm、 D10二 300. 89nm 、 D25二 360. 06nm D50=400. 19nm D75=520. llnm 、 D97=600. 73nm、 S. S. A=0. 02 的颗粒分布相对分散的粉体材料。 再用专利申请 号为 2006101620469公开的一种金属微、纳米颗粒包覆工艺即 "氮氢包覆法"， 在粉体颗粒的表面渗透包覆一层厚度为 Inn！〜 3nm的防氧化层， 而后， 对分选 后的铁粉颗粒进行表面抛光处理。 The nano-iron powder cyclone grading equipment is divided into four stages, each stage is equipped with a 4KW speed-regulating motor and a 20KW negative-pressure motor. Firstly, the negative pressure motor is started to form a negative pressure state in the various stages of the classification equipment, and then the first stage is opened respectively; "A 4-stage cyclone classifier motor forms an axial flow cyclone in the respective closed containers. The limited amount of iron powder to be inhaled is required. The first closed container, the iron powder particles having the largest particle diameter are sorted in the axial cyclone, and the remaining iron powder particles enter the second closed container, and the desired iron powder particles are classified in the cyclone larger than the first axial flow, in the second order. The third level is graded step by step, so that four iron powder products with relatively concentrated particle intervals can be obtained at the same time. Embodiment 2, a special iron powder for electromagnetic energy conversion, which is prepared by the following method, using a metal nano powder zero-boundary particle cutting production process described in Patent Application No. 2006100481685, at 5 ° C, high frequency The number of cuts was set to produce nano iron powder particles at 3,500 times per minute. Then use my own "cyclone grading process" to separate (400 nm as an example) D3 220. 56nm, D10 two 300. 89nm, D25 two 360. 06nm D50 = 400. 19nm D75 = 520. llnm, D97 = The particle distribution of 600. 73 nm, SS A=0. 02 is relatively dispersed powder material. The metal micro- and nano-particle coating process disclosed in Patent Application No. 2006101620469, that is, the "nitrogen-hydrogen coating method", is coated on the surface of the powder particles to have a thickness of Inn! ~ 3nm anti-oxidation layer, and then the surface of the iron powder after sorting is polished.
实施例 3， 一种电磁能量转换专用铁粉， 是由以下方法制备， 利用专利申 请号为 2006100481685 记载的一种金属纳米粉体零界颗粒切割生产工艺， 在 15°C的情况下， 高频切割次数设定在每分钟 3250次的情况下生产纳米铁粉颗 粒。再利用我自创的"旋风分级工艺 "分别分选出（400 nm为例） D3=220. 56nm, D10=300. 89nm 、 D25=360. 06nm D50=400. 19nm D75=520. llnm 、 D97=600. 73nm、 S. S. A=0. 02.的颗粒分布相对分散的粉体材料。 再用专利申请 号为 2006101620469公开的一种金属微、纳米颗粒包覆工艺即 "氮氢包覆法"， 在粉体颗粒的表面渗透包覆一层厚度为 lnm〜3nm的防氧化层， 而后， 对分选 后的铁粉颗粒进行表面抛光处理。  Embodiment 3, a special iron powder for electromagnetic energy conversion, which is prepared by the following method, using a metal nano-powder zero-boundary particle cutting production process described in Patent Application No. 2006100481685, at a temperature of 15 ° C, a high frequency The number of cuts was set to produce nano iron powder particles at 3,250 times per minute. Then use my own "cyclone grading process" to separate (400 nm as an example) D3 = 220. 56nm, D10 = 300. 89nm, D25 = 360. 06nm D50 = 400. 19nm D75 = 520. llnm, D97 = 600. 73 nm, SS A = 0.22. The particle distribution is relatively dispersed powder material. Further, a metal micro- and nano-particle coating process disclosed in Patent Application No. 2006101620469, that is, a "nitrogen-hydrogen coating method", is coated on the surface of the powder particles with an anti-oxidation layer having a thickness of 1 nm to 3 nm, and then , the surface of the iron powder particles after sorting is polished.

Claims

权 利 要 求 Rights request
1、 一种电磁能量转换专用铁粉， 其特征在于： 是由以下方法制备， 利用 金属纳米粉体零界颗粒切割生产工艺在 25T〜 5°C的情况下， 高频切割次数设 定在每分钟 3000 次—— 3500 次的情况下生产纳米铁粉颗粒， 再分选出 D3=220.56nm 、 D10=300.89nm 、 D25=360.06nm D50=400.19nm D75=520.11nm> D97=600:73nm. S.S.A=0.02的颗粒分布相对分散的粉体材料， 再用 "氮氢包覆法 "在粉体颗粒的表面渗透包覆一层厚度为 Inn！〜 3nm的防氧 化层， 而后对分选后的铁粉颗粒进行表面抛光处理。  1. A special iron powder for electromagnetic energy conversion, which is characterized in that: it is prepared by the following method, using a metal nano-powder zero-boundary particle cutting production process at 25T~5°C, the frequency of high-frequency cutting is set at each 3,000 times - 3,500 times to produce nano-iron powder particles, and then sorted out D3 = 220.56nm, D10 = 300.89nm, D25 = 360.06nm D50 = 400.19nm D75 = 520.11nm > D97 = 600: 73nm. SSA The particle distribution of =0.02 is relatively dispersed powder material, and then the surface of the powder particles is permeated with a thickness of Inn by the "nitrogen hydrogen coating method". ~ 3nm anti-oxidation layer, and then the surface of the iron powder after sorting is polished.
2、 根据权利要求书 1所述的电磁能量转换专用铁粉， 其特征在于： 在 15 °C的情况下，高频切割次数设定在每分钟 3250次的情况下生产纳米铁粉颗粒。  The iron powder for electromagnetic energy conversion according to claim 1, characterized in that, in the case of 15 ° C, the number of high frequency cuts is set to be 3,250 times per minute to produce nano iron powder particles.
PCT/CN2007/003523 2007-10-29 2007-12-10 A nanometer iron powder specially used in conversion of electromagnetism energy WO2009055981A1 (en)

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CN1911567A (en) * 2006-08-17 2007-02-14 王惠民 Cutting production technology of metal nanometer powder zero boundry particle
CN1962127A (en) * 2006-12-11 2007-05-16 王惠民 Nano iron powder dedicated for metallic glass
CN1970201A (en) * 2006-12-11 2007-05-30 王惠民 Nano-level coating iron powder
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