JP2939213B2 - Mn-Zn ferrite - Google Patents
Mn-Zn ferriteInfo
- Publication number
- JP2939213B2 JP2939213B2 JP9256491A JP25649197A JP2939213B2 JP 2939213 B2 JP2939213 B2 JP 2939213B2 JP 9256491 A JP9256491 A JP 9256491A JP 25649197 A JP25649197 A JP 25649197A JP 2939213 B2 JP2939213 B2 JP 2939213B2
- Authority
- JP
- Japan
- Prior art keywords
- ferrite
- iron oxide
- solution
- iron
- crystal
- 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.)
- Expired - Lifetime
Links
- 229910000859 α-Fe Inorganic materials 0.000 title claims description 12
- 238000000034 method Methods 0.000 claims description 14
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 32
- 235000013980 iron oxide Nutrition 0.000 description 17
- 239000000243 solution Substances 0.000 description 12
- 239000013078 crystal Substances 0.000 description 9
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 7
- 239000011701 zinc Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 101100283604 Caenorhabditis elegans pigk-1 gene Proteins 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000010494 dissociation reaction Methods 0.000 description 2
- 230000005593 dissociations Effects 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 229910000358 iron sulfate Inorganic materials 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 229910001289 Manganese-zinc ferrite Inorganic materials 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- JIYIUPFAJUGHNL-UHFFFAOYSA-N [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] JIYIUPFAJUGHNL-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Compounds Of Iron (AREA)
- Soft Magnetic Materials (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、高周波電源用トラ
ンスなどの各種トランス、コイルなどの磁心に使用され
るＭｎ−Ｚｎフェライトに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a Mn-Zn ferrite used in various transformers such as a transformer for a high-frequency power supply and a magnetic core such as a coil.
【０００２】[0002]
【従来の技術】Ｍｎ−Ｚｎフェライトが各種磁心に用い
られている。2. Description of the Related Art Mn-Zn ferrite is used for various magnetic cores.
【０００３】[0003]
【発明が解決しようとする課題】本発明の目的は、高性
能なＭｎ−Ｚｎフェライトを得ることである。An object of the present invention is to obtain a high-performance Mn-Zn ferrite.
【０００４】[0004]
【課題を解決するための手段】本発明のＭｎ−Ｚｎフェ
ライトは、０．００２２〜０．００４４重量％、好まし
くは０．００２４〜０．００４４重量％のリンを含有す
る。好ましくは１ＫＨｚ、２５℃での交流初透磁率は、
９３００以上である。The Mn-Zn ferrite of the present invention contains 0.0022 to 0.0044% by weight, preferably 0.0024 to 0.0044% by weight of phosphorus. Preferably, the AC initial permeability at 1 KHz and 25 ° C. is
9300 or more.
【０００５】[0005]
【実施例】まず、Ｍｎ−Ｚｎフェライトの製造に用いる
酸化鉄の製造方法の一例を説明する。濃度が１８％の塩
酸に軟鋼板（炭素綱）を加えて、ｐＨが約１．０になる
まで溶液を加熱撹拌して軟鋼板を溶解させた。次にこの
溶液１ｍ３に対して濃度６０％の硝酸を２０リットル加
え１時間煮沸した。First, an example of a method for producing iron oxide used for producing Mn-Zn ferrite will be described. A mild steel sheet (carbon steel) was added to hydrochloric acid having a concentration of 18%, and the solution was heated and stirred until the pH reached about 1.0 to dissolve the mild steel sheet. Then the nitric acid concentration of 60% was boiled 20 liters added 1 hour to the solution 1 m 3.
【０００６】次に煮沸した溶液に軟鋼板を再度加えてｐ
Ｈが３．５になるまで加熱撹拌した。この液を濾布（Ｐ
−９１ＳＣ、（株）栗田機械製作所製）を用いて不溶物
を濾別し、濾液を流動層の温度が７００℃の流動焙焼炉
で酸化焙焼して酸化鉄とした。Next, the mild steel sheet is added again to the boiled solution, and p
The mixture was heated and stirred until H became 3.5. Use this solution on a filter cloth (P
Insolubles were filtered off using -91SC (manufactured by Kurita Machinery Co., Ltd.), and the filtrate was oxidized and roasted in a fluidized roasting furnace having a fluidized bed temperature of 700 ° C. to obtain iron oxide.
【０００７】表１のＮｏ．１〜８はこの方法で製造した
酸化鉄の不純物含有量の例である。Ｎｏ．９〜１３は一
般フェライト用として市販されている酸化鉄の例であ
る。Ｎｏ．１４〜１６は結晶精製法による高純度酸化鉄
の例である。[0007] In Table 1, No. 1 to 8 are examples of the impurity content of the iron oxide produced by this method. No. 9 to 13 are examples of iron oxides that are commercially available for general ferrite. No. 14 to 16 are examples of high-purity iron oxide obtained by a crystal purification method.
【０００８】[0008]
【表１】 [Table 1]
【０００９】次いで、表１の各酸化鉄を用い、これに高
純度酸化マンガンや高純度酸化亜鉛等を調合して、Ｆｅ
２Ｏ３：ＭｎＯ：ＺｎＯがモル比で、５３：２４．５：
２２．５になるよう通常の方法で配合し、成形後、１３
５０℃で焼成し、外径：２５ｍｍ、内径：１５ｍｍ、厚
さ：５ｍｍのリング状のテストピースの配合粉の成分、
すなわちフェライト組成と磁気特性を示した。表２のテ
ストピースのＮｏ．は、使用した表１の酸化鉄のＮｏ．
に対応する。Next, each of the iron oxides shown in Table 1 was mixed with high-purity manganese oxide, high-purity zinc oxide, etc.
2 O 3 : MnO: ZnO in a molar ratio of 53: 24.5:
It is compounded by a usual method so that it becomes 22.5, and after molding, 13
Baking at 50 ° C., components of compound powder of ring-shaped test piece having outer diameter: 25 mm, inner diameter: 15 mm, thickness: 5 mm,
That is, the ferrite composition and the magnetic properties were shown. No. of the test piece in Table 2. Is the iron oxide No. of Table 1 used.
Corresponding to
【００１０】[0010]
【表２】 [Table 2]
【００１１】表２のＮｏ．１〜Ｎｏ．８、Ｎｏ．１４、
１５は２２〜４４ｐｐｍのＰを含有する酸化鉄を使用し
たテストピースであるが、Ｎｏ．９〜Ｎｏ．１３の一般
フェライト用酸化鉄を使用したテストピースと比べて磁
性特性はμｉａｃ９３００以上と非常に優れている。し
かし、結晶精製法によるＰ含有量のきわめて少ない酸化
鉄を使用した２ｐｐｍ以下とＰ量が０に近いテストピー
スＮｏ．１６の磁性特性は低下している。In Table 2, No. 1 to No. 8, No. 14,
No. 15 is a test piece using iron oxide containing 22 to 44 ppm of P. 9-No. The magnetic properties are as excellent as μiac 9300 or more as compared with the 13 test pieces using iron oxide for general ferrite. However, the test piece No. 2 having a P content close to 0 was 2 ppm or less using iron oxide having a very low P content by a crystal refining method. The magnetic properties of Sample No. 16 are degraded.
【００１２】軟鋼板（炭素綱）は通常０．０３％のＰを
含有している。軟鋼板を塩酸に溶解するとＰも溶液中に
溶解する。この溶液中のＰをＰ＋５に酸化するために溶
液に硝酸を加えて煮沸する。溶液中に生成したｐ＋５は
下記（１）〜（３）式の如くに挙動する。[0012] Mild steel plates (carbon steel) usually contain 0.03% P. When a mild steel sheet is dissolved in hydrochloric acid, P also dissolves in the solution. To oxidize P in this solution to P +5 , nitric acid is added to the solution and boiled. The p +5 generated in the solution behaves as in the following equations (1) to (3).
【００１３】 Ｈ３ＰＯ４＝Ｈ＋＋Ｈ２ＰＯ４ − …………（１） Ｈ２ＰＯ４ −＝Ｈ＋＋ＨＰＯ４ −２ …………（２） ＨＰＯ４ −２＝Ｈ＋＋ＰＯ４ −３ …………（３） 溶液のｐＨが小さいと解離は進行しないが、Ｈ３ＰＯ４
あるいはＨ２ＰＯ４ −の金属塩は水溶性であるため、ｐ
Ｈが小さいとＰを水溶液から分別できない。この煮沸し
た溶液に軟鋼板を再度加えてｐＨを３．５とすると解離
は（２）または（３）式の如くに進行して、ＨＰＯ４
−２やＰＯ４ −３が生成するが、これ等の金属塩は不溶
性であるため、不溶性の金属塩としてＰを水溶液から濾
別できる。先に例として述べた方法は軟鋼板を原料とし
たが、類似の方法によって、Ｐが高い酸化鉄から本発明
の酸化鉄を製造することもできる。[0013] H 3 PO 4 = H + + H 2 PO 4 - ............ (1) H 2 PO 4 - = H + + HPO 4 -2 ............ (2) HPO 4 -2 = H + + PO 4 -3 ... (3) Dissociation does not proceed if the pH of the solution is small, but H 3 PO 4
Alternatively, since the metal salt of H 2 PO 4 − is water-soluble,
If H is small, P cannot be separated from the aqueous solution. When a mild steel plate is added again to the boiled solution to adjust the pH to 3.5, the dissociation proceeds as in equation (2) or (3), and HPO 4
-2 and PO 4 -3 are produced, but since these metal salts are insoluble, P can be separated from the aqueous solution as an insoluble metal salt. Although the method described above as an example uses a mild steel sheet as a raw material, the iron oxide of the present invention can be produced from iron oxide having a high P by a similar method.
【００１４】これに対し、硫酸鉄や塩化銀の水溶液から
硫酸鉄や塩化鉄の結晶を晶出せしめ、この結晶を酸化し
て酸化鉄とする結晶精製法がある。この方法では不純物
の一部が結晶に混入するため一回晶出では不純物を十分
には低減し難い。従って得られた結晶を水等に再度溶解
し、再度結晶を晶出せしめる等の処理を繰り返して、不
純物の含有量を低減する。この方法によるとＰの含有量
が０．００３重量％以下の酸化鉄が得られるが、結晶の
再溶解や再晶出を繰り返すために工程は煩瑣で、酸化鉄
の製造コストも高い。On the other hand, there is a crystal purification method in which crystals of iron sulfate or iron chloride are crystallized from an aqueous solution of iron sulfate or silver chloride, and the crystals are oxidized to iron oxide. In this method, since some of the impurities are mixed into the crystal, it is difficult to sufficiently reduce the impurities by a single crystallization. Therefore, the process of dissolving the obtained crystal in water or the like again and crystallizing the crystal again is repeated to reduce the content of impurities. According to this method, an iron oxide having a P content of 0.003% by weight or less can be obtained, but the steps are complicated and the production cost of the iron oxide is high because re-dissolution and recrystallization of the crystal are repeated.
【００１５】また、特開昭６２−２３５２２１号公報に
記載された方法は、鉄を電解し、陽極液を分離し、フロ
ックを添加し、濾過分離し、液をアルカリ性とし、酸化
処理し、沈殿を回収し、これを焼成する方法で、酸化鉄
の製造工程が煩瑣である。The method described in Japanese Patent Application Laid-Open No. Sho 62-235221 discloses a method in which iron is electrolyzed, an anolyte is separated, a floc is added, the solution is separated by filtration, the solution is made alkaline, oxidized, and precipitated. The method of recovering and baking this requires complicated steps for producing iron oxide.
【００１６】上記の好適例における酸化鉄は、その製造
工程がきわめて簡単であり、安価に製造できる。The iron oxide in the above preferred embodiment has a very simple manufacturing process and can be manufactured at low cost.
【００１７】[0017]
【発明の効果】本発明によれば、高性能な磁気特性のマ
ンガン亜鉛フェライトが容易に得られる。According to the present invention, manganese zinc ferrite having high performance magnetic properties can be easily obtained.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 奥谷 克伸 東京都中央区日本橋一丁目13番１号ティ ーディーケイ株式会社内 (72)発明者 森 輝夫 東京都中央区日本橋一丁目13番１号ティ ーディーケイ株式会社内 審査官 田中 友章 (56)参考文献 特開 昭62−235221（ＪＰ，Ａ) 特開 昭62−97115（ＪＰ，Ａ) 特開 昭56−160330（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) H01F 1/34 C01G 49/00 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Katsunobu Okutani, inc. 1-13-1 Nihonbashi, Chuo-ku, Tokyo TDK Corporation (72) Inventor Teruo Mori 1-13-1, Nihonbashi, Chuo-ku, Tokyo TDK Examiner in the Company Tomoaki Tanaka (56) References JP-A-62-235221 (JP, A) JP-A-62-97115 (JP, A) JP-A-56-160330 (JP, A) (58) Survey Field (Int.Cl. 6 , DB name) H01F 1/34 C01G 49/00
Claims (3)
４４重量％であるＭｎ−Ｚｎフェライト。1. The method according to claim 1, wherein the content of phosphorus is 0.0022 to 0.00.
Mn-Zn ferrite that is 44% by weight.
４４重量％である請求項１のＭｎ−Ｚｎフェライト。2. The phosphorus content is 0.0024 to 0.00.
The Mn-Zn ferrite according to claim 1, which is 44% by weight.
請求項１または２のＭｎ−Ｚｎフェライト。3. The Mn—Zn ferrite according to claim 1, wherein the AC initial permeability is 9300 or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9256491A JP2939213B2 (en) | 1997-09-22 | 1997-09-22 | Mn-Zn ferrite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9256491A JP2939213B2 (en) | 1997-09-22 | 1997-09-22 | Mn-Zn ferrite |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6147454A Division JP2735790B2 (en) | 1994-06-29 | 1994-06-29 | Mn-Zn ferrite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10163019A JPH10163019A (en) | 1998-06-19 |
| JP2939213B2 true JP2939213B2 (en) | 1999-08-25 |
Family
ID=17293386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9256491A Expired - Lifetime JP2939213B2 (en) | 1997-09-22 | 1997-09-22 | Mn-Zn ferrite |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2939213B2 (en) |
-
1997
- 1997-09-22 JP JP9256491A patent/JP2939213B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10163019A (en) | 1998-06-19 |
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