CN106278229A - 一种高频高磁导率的多用途锰锌铁氧体材料 - Google Patents
一种高频高磁导率的多用途锰锌铁氧体材料 Download PDFInfo
- Publication number
- CN106278229A CN106278229A CN201610675628.0A CN201610675628A CN106278229A CN 106278229 A CN106278229 A CN 106278229A CN 201610675628 A CN201610675628 A CN 201610675628A CN 106278229 A CN106278229 A CN 106278229A
- Authority
- CN
- China
- Prior art keywords
- magnetic permeability
- multipurpose
- high frequency
- added
- sodium silicate
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
- C04B35/2658—Other ferrites containing manganese or zinc, e.g. Mn-Zn ferrites
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/6261—Milling
- C04B35/62615—High energy or reactive ball milling
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62695—Granulation or pelletising
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
- C04B35/62802—Powder coating materials
- C04B35/62805—Oxide ceramics
- C04B35/62826—Iron group metal oxides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3281—Copper oxides, cuprates or oxide-forming salts thereof, e.g. CuO or Cu2O
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3817—Carbides
- C04B2235/3839—Refractory metal carbides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/40—Metallic constituents or additives not added as binding phase
- C04B2235/405—Iron group metals
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
- C04B2235/483—Si-containing organic compounds, e.g. silicone resins, (poly)silanes, (poly)siloxanes or (poly)silazanes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Soft Magnetic Materials (AREA)
- Magnetic Ceramics (AREA)
Abstract
本发明公开了一种高频高磁导率的多用途锰锌铁氧体材料,由以下重量份的原料制备制成:羟基铁粉60‑65、三氧化二铁10‑15、氧化锰25‑27、氧化锌21‑23、硅烷偶联剂kh5704‑5、有机硅树脂5‑7、聚乙烯醇1‑2、硅酸钠7‑9、碳化钽0.4‑0.5、陶瓷粉0.3‑0.4、氧化铜0.8‑0.9、水适量;本发明具有价格低廉、工艺简单、污染小、耗能低和高频高磁导率等特性,应用范围广,值得推广。
Description
技术领域
本发明涉及铁氧体材料技术领域,尤其涉及一种高频高磁导率的多用途锰锌铁氧体材料。
背景技术
软磁材料是一类具有较低矫顽力和较高磁导率的磁性材料,在外加磁场的作用下,软磁材料表现出既易于磁化又易于退磁的特点,软磁材料作为磁电转换领域的重要功能材料之一,在电子设备、通信和电器等领域有着广泛的应用。随着数字电视机、笔记本电脑的普及,电子设备向轻、薄、小型化发展,这就势必要缩小电源体积,对电源提出了更高、更严格的要求。复合软磁材料由于具有金属软磁材料高饱和磁感应强度和软磁铁氧体高电阻率的特点,在工业技术和日常生活中的应用日益增多,一直以来受到人们的重视并得到广泛的研究。复合软磁材料一般是以金属软磁粉末为原料,在颗粒表面进行有机或无机绝缘处理后,在采用粉末冶金工艺将复合粉末压制成型即可得到块状软磁材料。与传统的金属软磁材料相比,复合软磁材料具有较高的电阻率,可以减少涡流损耗,提高材料的使用频率。但是一般有机或无机包覆层具有非磁性特征,与金属磁性颗粒复合后,在一定程度上也会降低材料的饱和磁化强度,所以必须要通过合适的有效工艺,在提高材料电阻率和降低磁损耗的同时,保持较高密度和饱和磁化强度是当今研究的重点。
发明内容
本发明目的就是为了弥补已有技术的缺陷,提供一种高频高磁导率的多用途锰锌铁氧体材料。
本发明是通过以下技术方案实现的:
一种高频高磁导率的多用途锰锌铁氧体材料,由以下重量份的原料制备制成:羟基铁粉60-65、三氧化二铁10-15、氧化锰25-27、氧化锌21-23、硅烷偶联剂kh5704-5、有机硅树脂5-7、聚乙烯醇1-2、硅酸钠7-9、碳化钽0.4-0.5、陶瓷粉0.3-0.4、氧化铜0.8-0.9、水适量;
所述一种高频高磁导率的多用途锰锌铁氧体材料,由以下具体步骤制备制成:
(1)将羟基铁粉、三氧化二铁、氧化锰、氧化锌和硅烷偶联剂kh570混合球磨0.5-1h,然后将有机硅树脂用4-6倍量的丙酮溶解,再将上述偶联磁粉加到有机硅溶液中搅拌0.6-1h,然后在40-50°C中干燥1-2h粉碎后备用;
(2)将其余剩余的物料除聚乙烯醇和硅酸钠之外混合,研磨分散均匀后在120-200°C下真空退火20-40min,退火处理后粉碎备用;
(3)将聚乙烯醇加水溶解制成浓度在8-10%的聚乙烯醇溶液,再将步骤(2)得到的物料加到聚乙烯醇溶液中,超声分散均匀成为料浆;
(4)将步骤(1)得到的产物加到步骤(3)中,混合搅拌均匀后加到喷雾干燥塔内喷雾造粒,将进口温度控制在300-340°C,出口温度控制在100-110°C,然后将颗粒过60目筛,采用全自动粉末成型机冷压成型;
(5)将制成的坯件浸渍到硅酸钠溶液中,抽真空,保持3min后取出材料,烘干,然后在氮气保护下,于1000-1200°C下烧结120-160min,结束后冷却至室温即可。
本发明的优点是:本发明采用铁粉代替氧化铁制备磁芯材料具有较低的矫顽力和损耗特性,和其他粉体偶联后并在表面包覆一层有机硅树脂,增大了密度,减少了磁芯材料的体积并且具有较高的电阻率,高饱和磁感应强度和磁导率,可以减少涡流损耗和提高材料的使用频率的功能,本发明提高了增强颗粒之间的粘结性,降低成型压力,避免在压制时坯件起层、炸纹、开裂等质量问题,在成型之后浸渍硅酸钠中,大大的减少压制成型残留孔隙和应力的问题,并且提高了耐火和耐热的性能,添加的碳化钽、陶瓷粉和氧化铜具有能够促进细化晶粒助融的作用,极大的提高材料的频率和磁导率方面的功能,本发明具有价格低廉、工艺简单、污染小、耗能低和高频高磁导率等特性,应用范围广,值得推广。
具体实施方式
一种高频高磁导率的多用途锰锌铁氧体材料,由以下重量份的原料制备制成:羟基铁粉60、三氧化二铁10、氧化锰25、氧化锌21、硅烷偶联剂kh5704、有机硅树脂5、聚乙烯醇1、硅酸钠7、碳化钽0.4、陶瓷粉0.3、氧化铜0.8、水适量;
所述一种高频高磁导率的多用途锰锌铁氧体材料,由以下具体步骤制备制成:
(1)将羟基铁粉、三氧化二铁、氧化锰、氧化锌和硅烷偶联剂kh570混合球磨0.5h,然后将有机硅树脂用4倍量的丙酮溶解,再将上述偶联磁粉加到有机硅溶液中搅拌0.6h,然后在40°C中干燥1h粉碎后备用;
(2)将其余剩余的物料除聚乙烯醇和硅酸钠之外混合,研磨分散均匀后在120°C下真空退火20min,退火处理后粉碎备用;
(3)将聚乙烯醇加水溶解制成浓度在8%的聚乙烯醇溶液,再将步骤(2)得到的物料加到聚乙烯醇溶液中,超声分散均匀成为料浆;
(4)将步骤(1)得到的产物加到步骤(3)中,混合搅拌均匀后加到喷雾干燥塔内喷雾造粒,将进口温度控制在300°C,出口温度控制在100°C,然后将颗粒过60目筛,采用全自动粉末成型机冷压成型;
(5)将制成的坯件浸渍到硅酸钠溶液中,抽真空,保持3min后取出材料,烘干,然后在氮气保护下,于1000°C下烧结120min,结束后冷却至室温即可。
按照具体实施例制备的软磁铁氧体材料,对其进行性能测试,结果如下:
饱和磁通密度(T):0.92,磁损耗(W/Kg):63,矫顽力(A/m):15,居里温度(°C):173,工作频率(MHz):0.12。
Claims (2)
1.一种高频高磁导率的多用途锰锌铁氧体材料,其特征在于,由以下重量份的原料制备制成:羟基铁粉60-65、三氧化二铁10-15、氧化锰25-27、氧化锌21-23、硅烷偶联剂kh5704-5、有机硅树脂5-7、聚乙烯醇1-2、硅酸钠7-9、碳化钽0.4-0.5、陶瓷粉0.3-0.4、氧化铜0.8-0.9、水适量。
2.根据权利要求1所述一种高频高磁导率的多用途锰锌铁氧体材料,其特征在于,由以下具体步骤制备制成:
(1)将羟基铁粉、三氧化二铁、氧化锰、氧化锌和硅烷偶联剂kh570混合球磨0.5-1h,然后将有机硅树脂用4-6倍量的丙酮溶解,再将上述偶联磁粉加到有机硅溶液中搅拌0.6-1h,然后在40-50°C中干燥1-2h粉碎后备用;
(2)将其余剩余的物料除聚乙烯醇和硅酸钠之外混合,研磨分散均匀后在120-200°C下真空退火20-40min,退火处理后粉碎备用;
(3)将聚乙烯醇加水溶解制成浓度在8-10%的聚乙烯醇溶液,再将步骤(2)得到的物料加到聚乙烯醇溶液中,超声分散均匀成为料浆;
(4)将步骤(1)得到的产物加到步骤(3)中,混合搅拌均匀后加到喷雾干燥塔内喷雾造粒,将进口温度控制在300-340°C,出口温度控制在100-110°C,然后将颗粒过60目筛,采用全自动粉末成型机冷压成型;
(5)将制成的坯件浸渍到硅酸钠溶液中,抽真空,保持3min后取出材料,烘干,然后在氮气保护下,于1000-1200°C下烧结120-160min,结束后冷却至室温即可。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610675628.0A CN106278229A (zh) | 2016-08-17 | 2016-08-17 | 一种高频高磁导率的多用途锰锌铁氧体材料 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610675628.0A CN106278229A (zh) | 2016-08-17 | 2016-08-17 | 一种高频高磁导率的多用途锰锌铁氧体材料 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN106278229A true CN106278229A (zh) | 2017-01-04 |
Family
ID=57678178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610675628.0A Pending CN106278229A (zh) | 2016-08-17 | 2016-08-17 | 一种高频高磁导率的多用途锰锌铁氧体材料 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106278229A (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108176294A (zh) * | 2018-03-04 | 2018-06-19 | 华北理工大学 | 一种粉末冶金磨粉及送料装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105070454A (zh) * | 2015-08-21 | 2015-11-18 | 天长市昭田磁电科技有限公司 | 一种高机械强度铁氧体磁芯材料 |
-
2016
- 2016-08-17 CN CN201610675628.0A patent/CN106278229A/zh active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105070454A (zh) * | 2015-08-21 | 2015-11-18 | 天长市昭田磁电科技有限公司 | 一种高机械强度铁氧体磁芯材料 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108176294A (zh) * | 2018-03-04 | 2018-06-19 | 华北理工大学 | 一种粉末冶金磨粉及送料装置 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105097168A (zh) | 一种添加稀土元素的磁芯材料 | |
CN105060874A (zh) | 一种增大电阻率的锰锌铁氧体材料 | |
CN105304308A (zh) | 铁硅铝磁芯制备方法及所用磁芯无机复合绝缘包覆材料 | |
CN105185560A (zh) | 一种铁基金属软磁粉芯的制备方法 | |
CN109103010B (zh) | 一种提高磁粉芯绝缘层致密度的材料及其方法 | |
CN105761865A (zh) | 一种高频低损耗软磁铁氧体磁芯材料 | |
CN105070454A (zh) | 一种高机械强度铁氧体磁芯材料 | |
CN106205939A (zh) | 一种柔性软磁铁氧体磁芯材料 | |
CN105097172A (zh) | 一种低磁损耗铁氧体磁芯材料 | |
CN106205938A (zh) | 一种纳米磁芯材料 | |
CN106278230A (zh) | 一种具有电磁屏蔽性能的软磁铁氧体材料 | |
CN113380483B (zh) | 一种复合软磁材料及其制备方法 | |
CN110818402A (zh) | 一种超细铁氧体粉末的制备方法 | |
CN105070451A (zh) | 一种复合导磁材料磁芯 | |
CN106169349A (zh) | 一种稳定的铁氧体磁芯材料 | |
CN105070452A (zh) | 一种用于电器设备的低损耗磁芯材料 | |
CN106252014A (zh) | 一种抗干扰的铁氧体磁芯材料 | |
CN106278229A (zh) | 一种高频高磁导率的多用途锰锌铁氧体材料 | |
CN105761864A (zh) | 一种高磁能积铁氧体磁芯材料 | |
CN105070479A (zh) | 一种高磁导率变压器用磁芯材料 | |
CN105070449A (zh) | 一种低温烧结的铁基磁芯材料 | |
CN106298142A (zh) | 一种居里温度高的磁芯材料 | |
CN106205937A (zh) | 一种高效软磁铁氧体磁芯材料 | |
CN106205941A (zh) | 一种耐热冲击磁芯材料 | |
CN105070453A (zh) | 一种高叠加磁芯材料 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170104 |
|
WD01 | Invention patent application deemed withdrawn after publication |