JPS63134557A - Mn-zn base oxide magnetic material and manufacture - Google Patents
Mn-zn base oxide magnetic material and manufactureInfo
- Publication number
- JPS63134557A JPS63134557A JP61279644A JP27964486A JPS63134557A JP S63134557 A JPS63134557 A JP S63134557A JP 61279644 A JP61279644 A JP 61279644A JP 27964486 A JP27964486 A JP 27964486A JP S63134557 A JPS63134557 A JP S63134557A
- Authority
- JP
- Japan
- Prior art keywords
- mno
- oxide magnetic
- magnetic material
- starting material
- manganese
- 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
- 239000000696 magnetic material Substances 0.000 title claims description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000007858 starting material Substances 0.000 claims description 15
- 239000002994 raw material Substances 0.000 claims description 13
- 239000011572 manganese Substances 0.000 claims description 11
- 238000005245 sintering Methods 0.000 claims description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 8
- 229910052748 manganese Inorganic materials 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 description 17
- 238000007254 oxidation reaction Methods 0.000 description 17
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004455 differential thermal analysis Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 240000007124 Brassica oleracea Species 0.000 description 1
- 235000003899 Brassica oleracea var acephala Nutrition 0.000 description 1
- 235000012905 Brassica oleracea var viridis Nutrition 0.000 description 1
- 229910018663 Mn O Inorganic materials 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- IPJKJLXEVHOKSE-UHFFFAOYSA-L manganese dihydroxide Chemical compound [OH-].[OH-].[Mn+2] IPJKJLXEVHOKSE-UHFFFAOYSA-L 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、 Ｍｎ−Ｚｎ系酸化物磁性材料とその製造方
法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a Mn--Zn-based oxide magnetic material and a method for producing the same.
従来、電源トランスホーマの磁芯用材料としてＭｎ−Ｚ
ｎ系フェライト磁性材料か用いられている。Conventionally, Mn-Z was used as a material for the magnetic core of power transformers.
An n-type ferrite magnetic material is used.
斯かるフェライト磁性材料には、主成分として。Such ferrite magnetic materials include as the main component.
５０〜５５モルチのＦｅ２Ｏ３，３０〜３８モルのＭｎ
Ｏ（実際には、 Ｍｎ３Ｏ４等の多価のマンガン酸化物
を含マンガン出発材料としている。）９〜１５モルチの
ＺｎＯ、および、微量添加物として０〜０．１重量％の
Ｃａ０ 、０〜０，１重量％のＳ ｉＯ２を含有する材
料が使用されている。50-55 moles of Fe2O3, 30-38 moles of Mn
O (Actually, polyvalent manganese oxide such as Mn3O4 is used as the manganese-containing starting material.) 9 to 15 mol of ZnO, and 0 to 0.1% by weight of Ca0, 0 to 0 as trace additives. , 1% by weight of SiO2 is used.
しかしながら、主原材料のうち、 ＭｎＯにおいては、
従来、四三酸化マンガンＭｎ３Ｏ４を含マンカｙ出発材
料として使用しているため、焼結時に、内部クラックが
発生する欠点があった。However, among the main raw materials, in MnO,
Conventionally, trimanganese tetroxide Mn3O4 has been used as a mankay-containing starting material, which has had the disadvantage of generating internal cracks during sintering.
そこで９本発明の目的は、上記欠点に鑑み。Therefore, the object of the present invention is to solve the above drawbacks.
Ｍｎ３Ｏ４のかわりにＭｎＯ・ＯＨを使用することばよ
り。From the words that use MnO・OH instead of Mn3O4.
焼成時の内部クラックの発生のないＭｎ−Ｚｎ系酸化物
磁性材料とその製造方法を提供するものである。The present invention provides an Mn--Zn-based oxide magnetic material that does not generate internal cracks during firing, and a method for producing the same.
本発明によれば、含マンガン出発材料を必須の原材料と
するＭｎ−Ｚｎ系酸化物磁性材料において。According to the present invention, there is provided an Mn--Zn-based oxide magnetic material that uses a manganese-containing starting material as an essential raw material.
前記含マンガン出発材料は、 ＭｎＯ（ＯＨ）であると
とを特徴とするＭｎ−Ｚｎ系酸化物磁性材料が得られる
。A Mn--Zn-based oxide magnetic material is obtained, characterized in that the manganese-containing starting material is MnO(OH).
さらに９本発明によれば、 ＭｎＯ（ＯＨ）を含マンガ
ン出発材料として含む原材料を混合、造粒、成形後、焼
結することを特徴とするＭｎ−Ｚｎ系酸化物磁性材料の
製造方法が得られる。Furthermore, according to the present invention, there is provided a method for producing an Mn-Zn-based oxide magnetic material, which comprises mixing, granulating, molding, and then sintering raw materials containing MnO(OH) as a manganese-containing starting material. It will be done.
即ち２本発明は＠ ＭｎＯ，Ｆｅ ２０５ ＊ ＺｎＯ
を主構成成分とするＭｎ−Ｚｎ系酸化物磁性材料の原材
料のうち。That is, the two present inventions are @MnO, Fe 205 * ZnO
Among the raw materials for Mn-Zn-based oxide magnetic materials whose main constituents are:
ＭｎＯの出発原料について、従来より、Ｍｎ純度の高い
四三酸化マンガンＭｎ３Ｏ４を使用しているが、これに
代えてＭｎＯのｍａｉｌが変わらないように水酸化マン
ガンＭｎＯ・ＯＨを出発材料として使用し、その他にＦ
ｅ ２０３Ｔ Ｚ ｎＯを含む主原材料に、微量のＳ
ｓ Ｏ２ｅ Ｃａ。Conventionally, trimanganese tetroxide Mn3O4 with high Mn purity has been used as a starting material for MnO, but instead of this, manganese hydroxide MnO.OH is used as a starting material so that the mail of MnO does not change. Other F
e 203T A trace amount of S is added to the main raw material containing Z nO.
s O2e Ca.
等を添加してなる原材料を混合造粒し、プレス成形後焼
結するＭｎ−Ｚｎ系フェライト磁性材料の製造に関する
ものである。The present invention relates to the production of an Mn-Zn-based ferrite magnetic material by mixing and granulating raw materials with the addition of the following materials, press-molding and sintering the raw materials.
次に本発明の実施例について説明する。 Next, examples of the present invention will be described.
含マンガン出発材料であるＭｎＯ（ＯＨ）を必須の原材
料とし、他にＦｅ２Ｏ３，ＺｎＯを含む原材料を、得ら
れる磁性材料の組成成分がＦｅ２Ｏ，５２，５ｍｏｌチ
。MnO(OH), which is a manganese-containing starting material, is an essential raw material, and other raw materials containing Fe2O3 and ZnO are used, and the composition of the resulting magnetic material is Fe2O, 52.5 mol.
ＭｎＯ３４，０ｍｏｉｌ、ＺｎＯ１３，５ｍｏ１％とな
るように秤量し、これに、微量のＳ ｉ０２ ＊ Ｃａ
Ｏを添加して、ケールミルで混合しスプレードライヤー
にて造粒後。Weigh out 4.0 moil% of MnO and 1% of ZnO, and add a trace amount of S i02 *Ca to this.
Add O, mix in a kale mill, and granulate in a spray dryer.
ｆｖス成形しサンプルを得る。このサンプルを。FVS molding to obtain a sample. This sample.
１３１０℃、１．３アトミツク係の微量酸素雰囲気の焼
結炉で、２時間保持で焼結した。Sintering was carried out at 1310° C. in a sintering furnace with a trace oxygen atmosphere of 1.3 atomic concentration for 2 hours.
この焼結したサンプルを切断し、内部クラックの発生率
で評価を行った。その結果を第２図に示す。その結果、
酸化度は１．５であるＭｎＯ・ＯＨをＭｎＯの出発材料
に用いることにより、内部クラックがゼロとなったこと
がわかる。これは、 ＭｎＯ・ＯＨは第１図に示すごと
く、示差熱分析では吸熱反応を示すのに対し、他のＭｎ
３０４では発熱反応を示すことによる。よって、結合
剤などの添加有機物か焼結時の昇温過程で飛散する場合
１発熱反応をとるため９発熱量が大きくなってしまい、
内部クラックを発生させる。ところが１本発明に係わる
ＭｎＯ・ＯＨを使用すると、吸熱反応が生じ、内部クラ
ックが発生しないことになる。This sintered sample was cut and evaluated based on the rate of occurrence of internal cracks. The results are shown in FIG. the result,
It can be seen that by using MnO.OH, which has an oxidation degree of 1.5, as the starting material for MnO, the internal cracks became zero. This is because, as shown in Figure 1, MnO・OH shows an endothermic reaction in differential thermal analysis, whereas other MnO
304 by exhibiting an exothermic reaction. Therefore, when additive organic matter such as a binder scatters during the temperature rising process during sintering, an exothermic reaction occurs, resulting in a large calorific value.
Causes internal cracks. However, when MnO.OH according to the present invention is used, an endothermic reaction occurs and no internal cracks occur.
即ち、 ＭｎＯ・ＯＨは酸化度が高い原材料である。こ
こで、酸化度とは、マンがン（Ｍｎ）に対する酸素〔０
〕の比を表わす。従来より、 Ｍｎは価数の変化がおこ
りやすく、酸化マンガンでは、多くの酸化度をもつこと
になるが、化学的に安定させるために、理論値よシ過剰
の酸素をもつ。たとえば、 ＭｎＯの出発材料には、従
来Ｍｎ ５０４が用いられているが、酸化度の理論値は
１．３３であり２分析値は１．３５あるいは１．３８の
値をとる。これに対して、 ＭｎＯの出発材料である本
発明のＭｎＯ・ＯＨは、酸化度１．５０と高い。従って
過剰酸素が多い場合にも、 ＭｎＯＧ（を用いることに
より、示差熱分析において１発熱量は少ないことになる
。That is, MnO.OH is a raw material with a high degree of oxidation. Here, the degree of oxidation refers to oxygen [0
] represents the ratio of Traditionally, Mn has been prone to changes in valence, and manganese oxide has many degrees of oxidation, but in order to be chemically stable, it contains oxygen in excess of the theoretical value. For example, Mn 504 is conventionally used as a starting material for MnO, but the theoretical value of the degree of oxidation is 1.33, and the analytical value is 1.35 or 1.38. On the other hand, the MnO.OH of the present invention, which is the starting material for MnO, has a high oxidation degree of 1.50. Therefore, even when there is a large amount of excess oxygen, the use of MnOG results in a smaller calorific value in differential thermal analysis.
第２図に酸化度と内部クラック発生率との関係を示す。Figure 2 shows the relationship between the degree of oxidation and the rate of internal crack occurrence.
上述したように、酸化度が高いほど内部クラック発生率
は少なくなり、酸化度１．４０以上でゼロとなった。As mentioned above, the higher the oxidation degree, the lower the internal crack occurrence rate, and it became zero at an oxidation degree of 1.40 or higher.
第３図（ａ） 、（ｂ） 、 （ｃ）には、酸化度と磁
気特性との関係を示す。これは、 Ｍｎ３Ｏ４とＭｎＯ
・ＯＨを一定の比その結果、酸化度が高くなるにしたが
って、初透磁率（μ）（ａ）は大きくなり、相対損失係
数（ｔａｎδ／μ）（ｂ）は小さくなる傾向にある。さ
らに、電力損失（コアロス） （ｃ）は大きく改良され
、 ＭｎＯ−ＯＨ単独（酸化度１．５０）では２０％小
さくなることが判明した。Figures 3(a), (b), and (c) show the relationship between the degree of oxidation and magnetic properties. This is Mn3O4 and MnO
- Constant ratio of OH As a result, as the degree of oxidation increases, the initial magnetic permeability (μ) (a) tends to increase and the relative loss coefficient (tan δ/μ) (b) tends to decrease. Furthermore, it was found that the power loss (core loss) (c) was greatly improved and was reduced by 20% when using MnO-OH alone (oxidation degree 1.50).
以上、述べたごとく本発明によれば、 ＭｎＯの出発材
料として、 ＭｎＯ・ＯＨを原材料に含めて使用するこ
とによって、焼結時の内部クラックをゼロとすると同時
に、コアロス特性を２０チ改良することができた。As described above, according to the present invention, by using MnO.OH as a starting material for MnO in the raw materials, it is possible to eliminate internal cracks during sintering and at the same time improve core loss characteristics by 20 degrees. was completed.
本発明は、電源トランスホーマ用Ｍｎ−Ｚｎフェライト
材料の焼結能力向上およびコアロス改良に対して極めて
有意義であると考える。The present invention is considered to be extremely significant for improving the sintering ability and core loss of Mn-Zn ferrite materials for power transformers.
第１図は示差熱分析計を用いて、温度と各試料の発熱及
び吸熱量を常温をＯ〔μＶ〕としたときの電位差をもっ
て示した相関図、第２図は、 ’ＭｎＯとクク発生率の
関係を示す相関図、第３図（、）はＭｎＯの酸化度と透
磁率の関係を示し、（ｂ）はＭｎＯの酸化度と相対損失
係数の関係を示し、（Ｃ）はＭｎＯの酸化度とコアロス
の関係を示す相関図である。
（’１ｌｌＴｈ”［：”ｉ鄭貝豊 メ
酸化度
酸化度
酸化度Figure 1 is a correlation diagram using a differential thermal analyzer to show the temperature and the amount of heat generated and absorbed by each sample using the potential difference when room temperature is O [μV]. Figure 2 shows the 'MnO and Kuku generation rate Figure 3 (,) shows the relationship between the oxidation degree of MnO and magnetic permeability, (b) shows the relationship between the oxidation degree of MnO and the relative loss coefficient, and (C) shows the relationship between the oxidation degree of MnO and the relative loss coefficient. FIG. 2 is a correlation diagram showing the relationship between core loss and core loss. ('1llTh” [:”iZheng Beifeng Me oxidation degree Oxidation degree
Claims (1)
ｎ系酸化物磁性材料において、前記含マンガン出発材料
は、ＭｎＯ（ＯＨ）であることを特徴とするＭｎ−Ｚｎ
系酸化物磁性材料。 ２、ＭｎＯ（ＯＨ）を含マンガン出発材料として含む原
材料を混合、造粒、成形後、焼結することを特徴とする
Ｍｎ−Ｚｎ系酸化物磁性材料の製造方法。[Claims] 1. Mn-Z using a manganese-containing starting material as an essential raw material
In the n-based oxide magnetic material, the manganese-containing starting material is MnO(OH).
based oxide magnetic materials. 2. A method for producing an Mn--Zn-based oxide magnetic material, which comprises mixing, granulating, molding, and then sintering raw materials containing MnO(OH) as a manganese-containing starting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61279644A JPS63134557A (en) | 1986-11-26 | 1986-11-26 | Mn-zn base oxide magnetic material and manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61279644A JPS63134557A (en) | 1986-11-26 | 1986-11-26 | Mn-zn base oxide magnetic material and manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63134557A true JPS63134557A (en) | 1988-06-07 |
Family
ID=17613853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61279644A Pending JPS63134557A (en) | 1986-11-26 | 1986-11-26 | Mn-zn base oxide magnetic material and manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63134557A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7498649B2 (en) | 2006-03-01 | 2009-03-03 | Epson Imaging Devices Corporation | Electro-optical device and electronic apparatus |
-
1986
- 1986-11-26 JP JP61279644A patent/JPS63134557A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7498649B2 (en) | 2006-03-01 | 2009-03-03 | Epson Imaging Devices Corporation | Electro-optical device and electronic apparatus |
| US7759757B2 (en) | 2006-03-01 | 2010-07-20 | Sony Corporation | Electro-optical device and electronic apparatus |
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