CN107256751A - 3d打印各向异性微波吸收体及其制备方法 - Google Patents

3d打印各向异性微波吸收体及其制备方法 Download PDF

Info

Publication number
CN107256751A
CN107256751A CN201710537669.8A CN201710537669A CN107256751A CN 107256751 A CN107256751 A CN 107256751A CN 201710537669 A CN201710537669 A CN 201710537669A CN 107256751 A CN107256751 A CN 107256751A
Authority
CN
China
Prior art keywords
microwave
anisotropy
preparation
lamella
absorber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710537669.8A
Other languages
English (en)
Inventor
韩瑞
李卫
董生智
周栋
陈红升
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Central Iron and Steel Research Institute
Original Assignee
Central Iron and Steel Research Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Central Iron and Steel Research Institute filed Critical Central Iron and Steel Research Institute
Publication of CN107256751A publication Critical patent/CN107256751A/zh
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01F1/147—Alloys characterised by their composition
    • 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
    • B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
    • 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
    • B22F3/02—Compacting only
    • 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
    • B22F3/10—Sintering only
    • 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
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • 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
    • 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
    • H01F41/0253—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 for manufacturing permanent magnets
    • H01F41/0273—Imparting anisotropy

Abstract

一种3D打印各向异性微波吸收体及其制备方法，属于微波吸收技术领域。该微波吸收体采用具有易面各向异性的磁粉制备，包括易面磁晶各向异性的稀土金属间化合物材料，铁氧体材料以及易面形状各向异性的3d金属合金材料中的一种或几种。该微波吸收体为半连续或者连续取向变化的各向异性微波吸收片。该微波吸收体采用如下工艺制备：制粉→取向成型为片层→片层切割为所需形状的单元片层→各个单元片层逐层堆垛固化。优点在于,实现了3D打印各向异性微波吸收体的制备，通过调整取向磁场的方向，实现对吸波片取向方向的控制，克服了传统吸波体取向方向不能连续变化的缺点，实现了同一吸波体中取向方向连续或半连续变化。

Description

3D打印各向异性微波吸收体及其制备方法
技术领域
本发明属于微波吸收材料技术领域，特别是涉及一种3D打印各向异性微波吸收体及其制备方法。
背景技术
近年来，“增材制造”和“3D打印”等快速成型技术迅速发展，并与传统制造技术相结合，由最初的只适合于木料，树脂，塑料等原材料的快速成型，发展到金属、高温合金等大型、复杂结构件的低成本、短周期、近净成型制造的新技术途径。该技术是一种变革性的数字化成型技术，能够大幅度提高生产效率、降低成本、实现产品的多样性。3D打印技术以数字化的方式呈现物理世界，成为连接虚拟世界和实体世界的桥梁，使人工智能从计算机拓展到现实世界，将带来制造领域革命性的的技术进步。
尽管3D打印成型技术在先进制造、新能源和医学等领域体现出了巨大的发展潜力，但其可选用的原料种类还比较有限，只适用于有限材料和相对简单成型件的加工。在实际应用过程中，由单质或均质材料构成的零件难以满足对功能和性能的要求，因此，研究开发异质结构实体(Heterogeneous Object，HEO)的3D打印成型技术成为研究热点之一。
人造型异质实体分为装配型和合成型。装配型异质实体由多个不同材料零件组装形成，各个组件是由单一材料制作，各个组件的材料之间不发生耦合或者渗透。合成型异质实体则是通过化学反应、物理处理、基因工程等方法获得的具有多相材料的非均质物体，如梯度功能材料，其组成结构和性能在材料厚度或者长度方向连续或者准连续变化。
近年来，电磁器件的工作频率越来越高，不同波段形成的电磁污染需要微波吸收体具有更宽的吸波频带，因此，开发宽频段的微波吸收材料已成为当前工作的重点。现有技术中，中国专利CN101065009A，CN201410638234和CN201010230672报道的3d金属合金，易面型稀土金属间化合物及双相纳米晶高频软磁材料具有高的磁晶各向异性场，可以大幅提高材料的共振频率，但是传统方法制备的颗粒均为各向同性的颗粒。CN200910140535报道了一种磁场取向片状软磁复合材料用于制备高频微波磁性材料的方法。这些微波吸收剂及制备方法制备的微波吸收体，其共振频率范围均比较窄，只满足一定频率范围内的吸波性能。
发明内容
本发明的目的在于提供3D打印各向异性微波吸收体及其制备方法，解决了微波吸收剂及制备方法制备的微波吸收体的共振频率范围较窄等问题；可实现宽频带微波吸收体的制备。
本发明3D打印各向异性微波吸收体，采用具有易面各向异性磁粉，该微波吸收体为半连续或者连续取向变化的各向异性吸波体：
该微波吸收体采用如下工艺制备：制粉→取向成型为片层→片层切割为所需形状的单元片层→各个单元片层逐层堆垛固化。
所述易面各向异性磁粉为平均粒度1-5μm的的易面磁晶各向异性稀土金属间化合物，易面磁晶各向异性铁氧体以及易面形状各向异性3d金属合金中的一种或几种。
一种3D打印各向异性微波吸收体的制备方法，包括如下步骤：
a.装粉：将具有易面各向异性的磁粉经过粗破碎，球磨或气流磨等方法破碎至平均粒度在1-5μm的粉末，然后将磁粉与粘结剂混合均匀，混合后的粉末由供料系统添加到模具中；
b.取向成型：上下压头相向移动预压制粉末，通过上下极头添加磁场，然后进行成型压制，形成具有取向的微波吸收片；
c.切割：将取向后的吸波片进行切割，加工成所需形状的单元片层，然后重复步骤a-c，制备不同取向的吸波片；
d.逐层堆垛固化：将切割后的吸波片逐层堆垛固化；
步骤a中所述的粘接剂为聚酰胺、不饱和聚酯、丙烯酸酯、硫醇、乙烯聚合物、环氧树脂中的一种，粉末与粘接剂的体积比为99.5:0.5-0.5:99.5。
步骤b中，磁场强度为0.1-3T。
步骤d中，采用逐层堆垛并固化微波吸收片，最终形成具有一定形状的三维实体。
各向异性微波吸收体的各个微波吸收片的取向通过充磁方向进行调整，从而形成半连续或者连续取向变化的各向异性微波吸收体。
附图说明
图1为本发明实施例1的梯度复合微波吸收体的结构示意图
图2为本发明实施例1的复数磁导率随频率的变化。
具体实施方式
下面结合附图和实施例，对本发明的具体实施方式做进一步的详细描述：
将具有易面各向异性的Sm2Fe14B铸锭进行熔体快淬，快淬后的薄带在正己烷保护下用玛瑙研钵研磨成大约50‐60微米的颗粒。然后将颗粒用行星式球磨机加入100ml异丙醇和0.2ml酞酸酯偶联剂湿磨，球料比为20∶1，球磨速度为400转/分钟，采用正反转交替球磨的方式，间隔球磨时间为1小时，球磨总时间设定为16小时，颗粒尺寸平均为3‐4微米，最后将样品烘干。
烘干后的磁粉与粘接剂混合均匀，混合后由供料系统添加到模具中，通过上下压头在磁场下压制成型，形成具有磁粉取向的微波吸收片，吸波片厚度为0.5mm。按照所需要的取向方向对吸波片进行切割。最后将切割后的单元片逐层堆垛固化，最终形成磁场取向三维打印各向异性Sm2Fe14B微波吸收体。其高频磁性如图2所示。

Claims (6)

1.一种3D打印各向异性微波吸收体，采用具有具有易面各向异性的磁粉，其特征在于：该微波吸波体为半连续或者连续取向变化的各向异性微波吸收片；微波吸收体的制备工艺为：制粉→取向成型为片层→片层切割为所需形状的单元片层→各个单元片层逐层堆垛固化；
所述的磁粉为平均粒度为1-5μm的易面磁晶各向异性稀土金属间化合物，易
面磁晶各向异性铁氧体以及易面形状各向异性3d金属合金中的一种或几种。
2.一种如权利要求1所述的3D打印各向异性微波吸收体的制备方法，其特征在于：包括如下步骤：
(1)装粉：将具有易面各向异性的磁粉经过粗破碎，球磨或气流磨等方法破碎至平均粒度在1-5μm的粉末，然后将磁粉与粘结剂混合均匀，混合后的粉末由供料系统添加到模具中；
(2)取向成型：上下压头相向移动预压制粉末，通过上下极头事假磁场，然后进行成型压制，形成具有取向的微波吸收片；
(3)切割：将取向后的吸波片进行切割，加工成所需形状的单元片层，然后重复步骤(1)-(3)，制备不同取向的吸波片；
(4)逐层堆垛固化：将切割后的吸波片逐层堆垛固化。
3.如权利要求2所述的制备方法，其特征在于：
步骤(1)中所述的粘接剂为聚酰胺、不饱和聚酯、丙烯酸酯、硫醇、乙烯聚合物、环氧树脂中的一种，粉末与粘接剂的体积比为99.5:0.5-0.5:99.5。
4.如权利要求2所述的制备方法，其特征在于：步骤(2)中，磁场强度为0.1-3T。
5.如权利要求2所述的制备方法，其特征在于：步骤(4)中，采用逐层堆垛并固化微波吸收片，最终形成具有三维实体。
6.如权利要求2所述的制备方法，其特征在于：各向异性微波吸收体的各个微波吸收片的取向通过充磁方向进行调整，从而形成半连续或者连续取向变化的各向异性微波吸收体。
CN201710537669.8A 2017-03-26 2017-07-04 3d打印各向异性微波吸收体及其制备方法 Pending CN107256751A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710185703 2017-03-26
CN201710185703X 2017-03-26

Publications (1)

Publication Number Publication Date
CN107256751A true CN107256751A (zh) 2017-10-17

Family

ID=60026011

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710537669.8A Pending CN107256751A (zh) 2017-03-26 2017-07-04 3d打印各向异性微波吸收体及其制备方法

Country Status (1)

Country Link
CN (1) CN107256751A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113795133A (zh) * 2021-09-13 2021-12-14 合肥工业大学 一种分层磁取向光敏树脂基电磁波吸收体的制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040153671A1 (en) * 2002-07-29 2004-08-05 Schuyler Marc P. Automated physical access control systems and methods
CN102093646A (zh) * 2010-10-29 2011-06-15 华南理工大学 一种用于三维打印快速成型的材料及其制备方法
CN104269265A (zh) * 2014-10-16 2015-01-07 钢铁研究总院 磁场取向三维打印各向异性粘结磁体及其制备方法
CN105304260A (zh) * 2015-11-19 2016-02-03 上海无线电设备研究所 一种三维成型的电磁材料制备方法及制备系统
CN106380626A (zh) * 2016-08-30 2017-02-08 上海无线电设备研究所 一种宽频吸波材料及其制备方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040153671A1 (en) * 2002-07-29 2004-08-05 Schuyler Marc P. Automated physical access control systems and methods
CN102093646A (zh) * 2010-10-29 2011-06-15 华南理工大学 一种用于三维打印快速成型的材料及其制备方法
CN104269265A (zh) * 2014-10-16 2015-01-07 钢铁研究总院 磁场取向三维打印各向异性粘结磁体及其制备方法
CN105304260A (zh) * 2015-11-19 2016-02-03 上海无线电设备研究所 一种三维成型的电磁材料制备方法及制备系统
CN106380626A (zh) * 2016-08-30 2017-02-08 上海无线电设备研究所 一种宽频吸波材料及其制备方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
张永搏: "沿 c 晶面断裂的 Nd2Co17和 Y2Co17微米片的微波电磁性能研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113795133A (zh) * 2021-09-13 2021-12-14 合肥工业大学 一种分层磁取向光敏树脂基电磁波吸收体的制备方法
CN113795133B (zh) * 2021-09-13 2024-01-26 合肥工业大学 一种分层磁取向光敏树脂基电磁波吸收体的制备方法

Similar Documents

Publication Publication Date Title
CN104269265B (zh) 磁场取向三维打印各向异性粘结磁体及其制备方法
CN108777931A (zh) 一种高磁导率电磁波吸收材料及其制备方法
CN105304260B (zh) 一种三维成型的电磁材料制备方法及制备系统
CN104496452A (zh) 一种铁氧体制备方法及其所制备的铁氧体
US5026438A (en) Method of making self-aligning anisotropic powder for magnets
CN101476079B (zh) 一种高电阻率磁致伸缩复合材料及制备方法
CN104319050A (zh) 双相纳米晶高频软磁材料及其制备方法
CN107256751A (zh) 3d打印各向异性微波吸收体及其制备方法
CN103824669B (zh) 一种μ90铁硅镍磁粉芯材料及其制备方法
CN109102977A (zh) 一种高密度干压异性铁氧体磁体及其制造方法
CN104332267A (zh) 易面型R2Fe14B化合物/α-Fe双相纳米晶高频软磁材料及其制备方法
CN108822796B (zh) 一种利用镍渣制备吸波材料的方法及吸波材料
CN106571221B (zh) 一种各向异性软磁复合材料的制备方法
JPH1174140A (ja) 圧粉磁芯の製造方法
CN109065317A (zh) 双各向异性纳米复合贫稀土高频磁性材料及其制备方法
CN103839643B (zh) 一种μ26铁硅镍磁粉芯材料及其制备方法
CN103480836B (zh) 烧结钕铁硼粉料的造粒方法
CN112466650A (zh) 一种各向异性复合磁体的制备方法
CN104319049B (zh) 易面型双相纳米晶高频软磁材料及其制备方法
CN110526701A (zh) 一种铁氧体固废循环再利用制备电磁波吸收材料的方法
CN104319051B (zh) 双相纳米晶高频软磁材料及其制备方法
CN106971804A (zh) 一种FeSiB非晶磁粉芯及其制备方法
CN103839642B (zh) 一种μ75铁硅镍磁粉芯材料及其制备方法
CN103839644B (zh) 一种μ60铁硅镍磁粉芯材料及其制备方法
CN111995386B (zh) 一种铁氧体固废基陶瓷吸波材料的制备方法

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20171017

RJ01 Rejection of invention patent application after publication