JPS60110846A - High permeability magnetic alloy - Google Patents

Abstract

PURPOSE:To provide the titled alloy having high hardness and good resistance to wear and vibration by limiting the compsn. consisting of Co, V, Si, Mn, Al, Zr, Ti and Fe. CONSTITUTION:A high permeability magnetic alloy consists of 46-55wt% Co, 0.5-3% V, 0.01-1% Si, 0.01-2% Mn, 0.01-2% in total of 1 or 2 kinds among 0.01-1.5% Al, 0.02-2% Zr and 0.01-1.5% Ti and the balance Fe and has good resistance to wear and vibration. Said alloy provides good resistance to wear by increasing hardness without spoiling soft magnetism. Co and V in the above-mentioned alloy components contribute to provision of high magnetic permeability in the above-mentioned compsn. range; Si and Mn are required as a deoxidizing agent and to obtain workability, but if the above-mentioned upper limit is exceeded, the saturation magnetization is decreased. Al, Zr and Ti contribute to an increase of hardness Hv to about >=1,000 without deteriorating the soft magnetism within the above-mentioned limited content range, thereby improving the resistance to wear.

Description

【発明の詳細な説明】 Ｆｅ−Ｃｏ系合金は金属材料中最高の飽和磁束密度（Ｂ
ｓ）を示すもので、一般に２％Ｖを含む４９％Ｃｏ−Ｆ
ｅ合金はバナジウム・パーメンダーとして知られ、主に
受話器の振動板等に使用されている。[Detailed description of the invention] Fe-Co alloy has the highest saturation magnetic flux density (B
s), typically 49% Co-F containing 2% V
E-alloy is known as vanadium permender and is mainly used for diaphragms of telephone receivers.

またバーメンダーはＢｓが高い為、各種機器で小型化が
要求されるヨーク、アマチーアに使用されており、その
一つとしてプリンターのヘッドがあげられろ。Also, due to its high Bs, barmender is used in yokes and amacias that require miniaturization in various types of equipment, one example of which is printer heads.

近年パーソナルコンビシータに関連してそノ周辺機器ア
あるプリンターのうちドツトプリンターが多量に使用さ
れるに至つている。この場合ドツトを打印するブリティ
ングワイヤ１はアマチュア２に溶接もしくはろう接で固
定されており、電気的パルスでアマチュア２をヨーク乙
に吸引させて打印するタイプと離脱させて打印するタイ
プがある。吸引させるタイプのヘッド構成図を図に示す
。In recent years, dot printers have come into widespread use as peripheral devices for personal combinatorics. In this case, the bulleting wire 1 for marking the dots is fixed to the armature 2 by welding or soldering, and there are two types: one type in which the armature 2 is attracted to the yoke 2 by electric pulses and the other type is used to mark the dots, and the other type in which the bulleting wire 1 is separated from the yoke 2 and then printed. The figure shows the configuration of the suction type head.

４はコイル、５はアマチュア嘲ストッパ、６はワイヤパ
イプ、７は印字紙、８はリボン、９はプラテン、１０は
リセットスプリングを示す。4 is a coil, 5 is an amateur stopper, 6 is a wire pipe, 7 is printing paper, 8 is a ribbon, 9 is a platen, and 10 is a reset spring.

最近ヘッドの小型化が要求され、ヨークあるいはアマチ
メア圧現在多用されているケイ素鉄の代りに、高Ｂｓの
バナジウム・パーメンダーが検討されている。Recently, there has been a demand for smaller heads, and high Bs vanadium permenders are being considered instead of silicon iron, which is currently widely used for yokes or amathematic pressure.

ヨークとアマチュアは構情上お互いに高速で叩きあうも
ので、摩耗と騒音が問題となるが、Ｆｅ−Ｃ０系合金は
防振効果が大きいことから、騒音の点はケイ素鉄に比べ
て有利である。しかし、従来のパーメンダー合金は耐摩
耗性改善の為、窒化による表面硬化処理を行やだが硬度
が低く、耐摩耗性に問題がありた。The structure of the yoke and armature means that they hit each other at high speed, which causes problems with wear and noise, but Fe-C0 alloy has a strong vibration-proofing effect, so it is advantageous in terms of noise compared to silicon iron. be. However, conventional permendar alloys undergo surface hardening treatment by nitriding to improve wear resistance, but their hardness is low and there are problems with wear resistance.

本発明はバーメンダー系合金の耐摩耗性を改良した合金
に関するものである。The present invention relates to a Vermender alloy with improved wear resistance.

本発明における合金元素の成分限定理由について述べる
。The reasons for limiting the composition of alloying elements in the present invention will be described.

ＣＯを４６〜５５％およびＶを０．５〜３％に限定した
のはこの範囲外では高透磁率がえられない為である。The reason why CO is limited to 46-55% and V is limited to 0.5-3% is because high magnetic permeability cannot be obtained outside these ranges.

ＳｉをＯ，［１１７１％、ＭｎをＱ、０１７２％とした
のは脱酸剤としての効果および加工性に関するもので、
０．０１％未満では加工性の向上は認められず、脱酸作
用も少ない。一方Ｓｔが１％、Ｍｎが２％を越えると飽
和磁化の減少、透磁率の低下をきたすためである。The reason for setting Si to O, [1171% and Mn to Q, 0172% is related to the effect as a deoxidizing agent and processability.
If it is less than 0.01%, no improvement in processability is observed and the deoxidizing effect is also small. On the other hand, if St exceeds 1% and Mn exceeds 2%, saturation magnetization decreases and magnetic permeability decreases.

Ａｊ、Ｚｒ、Ｔｉは表面窒化（例えばイオン窒化）を行
うたとき従来合金では硬さＨＶ＝８００位でありだもの
が、Ａｎ　Ｏ，０１／１．５％、Ｚｒ　Ｏ，０２／２％
、　’Ｉ’ｉ　ｎ、０１／１５％の１種または２種以上
を合計で０．０１〜２％含有させるとＨｖ≧１０００と
なり耐摩耗性を向上させる効果が認められた。１種また
は２種以上の合計で０．０１％未満だと硬度上昇の効果
が少なく２％を越えると軟磁性を劣化させるためである
。When Aj, Zr, and Ti are subjected to surface nitriding (for example, ion nitriding), conventional alloys have a hardness HV of about 800, but An O, 01/1.5%, Zr O, 02/2%
, 'I'in, 01/15%, in a total amount of 0.01 to 2%, Hv≧1000 and the effect of improving wear resistance was observed. This is because if the total amount of one or more types is less than 0.01%, the effect of increasing hardness will be small and if it exceeds 2%, soft magnetism will deteriorate.

以下実施例についてのべる。Examples will be described below.

表に示した化学組成の合金を真空誘導溶解において７ｋ
ｇ溶解したのち、鍛造、熱間圧延してから９５０°Ｃに
１Ｈ保持したあち０°Ｃの水中に焼入れを行りた。それ
から冷間圧延を施し板厚２．５順に仕上げた。An alloy with the chemical composition shown in the table was melted by vacuum induction melting to 7k.
After melting, it was forged, hot rolled, and then quenched in water at 0°C, which was held at 950°C for 1 hour. Then, it was cold rolled and finished to a plate thickness of 2.5 mm.

試験は磁性とイオン窒化による表面硬度の測定を行りた
。まず、板材から内径５３１１σ外径４５１にのリング
を採取したのち、８５０’ＣＸ４　水素雰囲気中で磁性
焼鈍を行ない、つづいて片面についてイＡン窒化を施し
た、このリングについて直流磁気特性を測定し、その後
窒化面の硬さをビッカース硬度計で測定した。この結果
もあわせて表に示す。The tests measured magnetism and surface hardness by ion nitriding. First, a ring with an inner diameter of 5311σ and an outer diameter of 451 was taken from a plate material, and then magnetically annealed in an 850'CX4 hydrogen atmosphere, followed by IA nitriding on one side.The DC magnetic properties of this ring were measured. Then, the hardness of the nitrided surface was measured using a Vickers hardness meter. The results are also shown in the table.

すなわち従来のパーメンダー合金は窒化による表面硬度
の上昇が低いが、本発明合金のごとくＡｚ、Ｔｉ、ｚｒ
を１種または２種以上で００１〜２％含有させると、軟
磁性を損うことなく高硬度かえられた。That is, conventional permendar alloys have a low increase in surface hardness due to nitriding, but as with the present alloy, Az, Ti, zr
When one or more of these were contained in an amount of 0.01 to 2%, high hardness could be obtained without impairing soft magnetism.

このため、ドツトプリンターのヨーク脚の端面あるいは
アマチュア端面の摩耗が少なく、ヘッドの長寿命化が計
れることからヨークやアマチュアに対し本発明合金は工
業上きわめて有益であるとみなされる。またドツトプリ
ンターのヨークの場合、ヨーク全体を発明合金で製造す
ることなく、磁路として断面積が狭く、アマチーアと叩
きあう脚部のみ溶着等で接着して使用しても、ヘッド小
型化に対し有効であやたつ 表For this reason, the alloy of the present invention is considered to be industrially extremely useful for yokes and armatures because there is less wear on the end faces of the yoke legs or the armature end faces of dot printers, and the life of the head can be extended. In addition, in the case of dot printer yokes, even if the entire yoke is not made of the invented alloy, and only the legs that have a narrow cross-sectional area as the magnetic path and strike the amacia are bonded together by welding, etc., it is possible to reduce the size of the head. Valid and manipulative table

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はドツトプリンターの一例を示す原理図である。 ■・・・プリティングワイヤ ■・・・アマチュア ■・・・ヨーク ■・・・コイル Ａ・・・ヨーク脚の端面 FIG. 1 is a diagram showing the principle of an example of a dot printer. ■・・・Priting wire ■・・・Amateur ■・・・Yoke ■・・・Coil A...End face of yoke leg

Claims (1)

【特許請求の範囲】[Claims] 重ｉｔ　％　テＣｏ：　４６１５５％、Ｖ＋　０．５／
３％、Ｓｉ　ｓ　Ｏ，０１／１％、Ｍｎ＋０．０１／２
％とＡＪｏ、０１／１．５％’、ＺｒＯ，０２／２％、
ＴｉＱ、０１／１．５％の１種または２種以上を合計で
ｏ、ｏ１／２％残部Ｆｅよつなる耐摩耗性、防振性の良
好な高Ｊ、ｌＪ磁率磁性合金。Weight % Co: 46155%, V+ 0.5/
3%, Si s O, 01/1%, Mn+0.01/2
% and AJo, 01/1.5%', ZrO, 02/2%,
A high J, lJ magnetic alloy with good wear resistance and vibration damping properties, consisting of one or more of TiQ, 01/1.5% in total, o1/2% and the balance Fe.