JPS63181402A - Resin magnet molding material - Google Patents
Resin magnet molding materialInfo
- Publication number
- JPS63181402A JPS63181402A JP62013884A JP1388487A JPS63181402A JP S63181402 A JPS63181402 A JP S63181402A JP 62013884 A JP62013884 A JP 62013884A JP 1388487 A JP1388487 A JP 1388487A JP S63181402 A JPS63181402 A JP S63181402A
- Authority
- JP
- Japan
- Prior art keywords
- nylon
- resin
- mechanical strength
- mixture
- molding material
- 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
- 239000011347 resin Substances 0.000 title claims abstract description 15
- 229920005989 resin Polymers 0.000 title claims abstract description 15
- 239000012778 molding material Substances 0.000 title claims description 9
- 229920006122 polyamide resin Polymers 0.000 claims abstract description 10
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims abstract description 5
- 238000004898 kneading Methods 0.000 claims abstract description 4
- 239000004677 Nylon Substances 0.000 claims description 13
- 229920001778 nylon Polymers 0.000 claims description 13
- 239000011159 matrix material Substances 0.000 claims description 2
- 230000005291 magnetic effect Effects 0.000 abstract description 10
- 239000000203 mixture Substances 0.000 abstract description 6
- 229920000571 Nylon 11 Polymers 0.000 abstract description 5
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 abstract description 4
- 229920000299 Nylon 12 Polymers 0.000 abstract description 4
- 239000007822 coupling agent Substances 0.000 abstract description 2
- 230000002542 deteriorative effect Effects 0.000 abstract description 2
- 229910052712 strontium Inorganic materials 0.000 abstract description 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 abstract description 2
- 229910000859 α-Fe Inorganic materials 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 1
- 239000008188 pellet Substances 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000232 polyglycine polymer Polymers 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
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
- H01F1/032—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 hard-magnetic materials
- H01F1/10—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 hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
- H01F1/11—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 hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
- H01F1/113—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 hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles in a bonding agent
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、マトリックスとしてポリアミド系樹脂を用い
た樹脂磁石成形材料（二関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a resin magnet molding material using a polyamide resin as a matrix.
従来の技術
近年、各種モータやスイッチ等の電気機器の部品として
、焼結磁石Ｃ二代ってポリアミド系樹脂と強磁性粉末を
混合混練して得た成形材料を。Conventional technology In recent years, sintered magnet C has been used as a molding material obtained by mixing and kneading polyamide resin and ferromagnetic powder as parts of electrical equipment such as various motors and switches.
射出、押出、ｆするいは圧縮成形法等にエリ成形した樹
脂磁石を用いることが多くなっている。Edge-molded resin magnets are increasingly used in injection, extrusion, compression molding, or other methods.
ポリアミド系樹脂としては、主に、１２ナイロン、６ナ
イロンが使用されている。１２ナイロンを用いた成形品
は、６ナイロンを由いたものに比べると、吸水Ｃ二よる
寸法変化は小さいが、機械的強度が若干低い傾向がある
。As the polyamide resin, 12 nylon and 6 nylon are mainly used. Molded articles made of 12 nylon have smaller dimensional changes due to water absorption than those made of 6 nylon, but tend to have slightly lower mechanical strength.
樹脂磁石は、七の用途の多様化Ｃ；伴なって、高磁気特
性を保つと共に機械的強健の同上が望まれている。機械
的強度を向上させる手段としては、５ｊ、形の金型温度
を高くして徐々Ｃ；冷却し。Resin magnets have diversified uses; therefore, it is desired that they maintain high magnetic properties and have mechanical strength as well. As a means to improve the mechanical strength, the temperature of the mold of the shape 5j is increased and the mold is gradually cooled.
成形品の表層と内部を比較的均一な密度にする方法があ
る。There is a method of making the surface and interior of a molded product relatively uniform in density.
しかし、この方法は、成形品の金型からの離型が困難に
なり、成形サイクルが長くなって生産性が著しく低下す
る。However, with this method, it becomes difficult to release the molded product from the mold, the molding cycle becomes longer, and productivity is significantly lowered.
これを解決するため（二、従来から種々検討が加えられ
、例えば樹脂の光填童や分子！ｉを変更することが試み
られている。In order to solve this problem (2), various studies have been made in the past, for example, attempts have been made to change the optical loading of the resin and the molecule !i.
発明が解決しようとする問題点
機械的強度を向上させるために樹脂の光填童を多くする
と磁気特性が低下する欠点がある。Problems to be Solved by the Invention When the number of optical fillers in the resin is increased in order to improve the mechanical strength, there is a drawback that the magnetic properties deteriorate.
また１機械的強度を向上させるために分子量の高い樹脂
を用いると、８ｇ脂の溶融粘度が高（ｌるため成形力（
困難になる欠点がある。In addition, if a resin with a high molecular weight is used to improve mechanical strength, the melt viscosity of 8g fat will be high (l), so the molding force (
There are drawbacks that make it difficult.
本発明は一磁気特性を低下させず機械的強度を向上させ
た樹脂磁石を得られる成形材料を提供することを目的と
する。SUMMARY OF THE INVENTION An object of the present invention is to provide a molding material with which a resin magnet with improved mechanical strength can be obtained without deteriorating magnetic properties.
問題点Ｚ解決するだめの手段
上記目的を達成するだめの本発明は、ポリアミド系有脂
と強磁性粉末を混合混練してなる樹脂磁石成形材料にお
いて一ポリアミド系樹脂として１２ナイロンと１１ナイ
ロンを配合した点ｆ二特徴を有する。Means to Solve Problem Z The present invention, which achieves the above object, is a resin magnet molding material made by mixing and kneading polyamide-based fat and ferromagnetic powder, in which 12 nylon and 11 nylon are blended as one polyamide resin. The point f has two characteristics.
作用
本発明は、機械的特性Ｃ二有利７１１１ナイロンを配合
しているので、＾磁気特性を保ちなカミら、機械的強度
を同上させた樹脂磁石を得ることができる。また−１２
ナイロンの存在により、吸水による寸法変化率も小さい
ものとなる。Function: Since the present invention contains 7111 nylon, which has excellent mechanical properties, it is possible to obtain a resin magnet that maintains its magnetic properties and has the same mechanical strength. Also -12
Due to the presence of nylon, the rate of dimensional change due to water absorption is also small.
実り〒４汐り 次Ｃ二１本発明の実施例を比較例と共に説明する。Fruitfulness〒4shio Next, C21 Examples of the present invention will be described together with comparative examples.
実施例１〜３．比較例１〜６
予じめカップリング剤と混合して表面処理をした平均粒
子径１．２μｍのストロンチウムフェライトとポリアミ
ド系樹脂を第１表Ｃ二示す割合で配合し、スーパーミキ
サーで混合後二軸押出機で混練してペレット状の成形材
料とした。Examples 1-3. Comparative Examples 1 to 6 Strontium ferrite with an average particle diameter of 1.2 μm, which had been surface-treated by being mixed with a coupling agent in advance, and polyamide resin were blended in the proportions shown in Table 1 C-2, and after mixing with a super mixer, two The mixture was kneaded using a shaft extruder to form a pellet-shaped molding material.
上記成形材料を、３００ ′ｃｔ：株った射出成形機を
用い°Ｃ非磁場中で成形し−ｍ械的特性測定…試片を得
た。また、１０，００００θの磁場中で同様に成形し°
ｃ、ＦＢ気特性測定川試片を用た。測定した機械的特性
、磁気特性、吸水による寸法変化率を併せて第１表（二
示す。The above molding material was molded at 300°C in a non-magnetic field using an injection molding machine with a stock size of 300 °C to obtain specimens for measuring mechanical properties. In addition, molding was performed in the same manner in a magnetic field of 10,0000θ.
c. FB air characteristics were measured using river specimens. The measured mechanical properties, magnetic properties, and dimensional change rate due to water absorption are shown in Table 1 (2).
比較例２の特性測定から分るように、１１ナイロンを単
独で由いたものは１寸法変化率が大さくなり１寸法ｆＫ
度が要求されるようｔものには不同さである。また、１
１ナイロンと６ナイロンを配合したものについても一機
械的強度は同上するが、寸法変化率は大さい。As can be seen from the characteristic measurements of Comparative Example 2, the rate of change in one dimension increases when 11 nylon is used alone, and the one dimension fK
There is an inconsistency in things that require degree. Also, 1
A mixture of Nylon 1 and Nylon 6 has the same mechanical strength as above, but the dimensional change rate is large.
発明の効果
］２ナイロンと１１ナイロンを配合して強磁性粉末と混
合混練してなる本発明の成形材料は、優Ｉした磁気特性
を保持しながら、１２ナイロンによる寸法安定性と１１
ナイロンによる機械的強度の優１１だ樹脂硝石を成形で
きる点、その工業的価値は極めて大である。Effects of the invention] The molding material of the present invention, which is a mixture of nylon 2 and nylon 11 and mixed and kneaded with ferromagnetic powder, maintains excellent magnetic properties while maintaining the dimensional stability of nylon 12 and nylon 11.
Its industrial value is extremely great in that it can be molded into resin saltpetre, which has superior mechanical strength to nylon.
Claims (1)
粉末と混合混練してなる樹脂磁石成形材料において、ポ
リアミド系樹脂として１２ナイロンと１１ナイロンを配
合したことを特徴とする樹脂磁石成形材料。A resin magnet molding material made by mixing and kneading a polyamide resin as a matrix with ferromagnetic powder, characterized in that 12 nylon and 11 nylon are blended as the polyamide resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62013884A JPS63181402A (en) | 1987-01-23 | 1987-01-23 | Resin magnet molding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62013884A JPS63181402A (en) | 1987-01-23 | 1987-01-23 | Resin magnet molding material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63181402A true JPS63181402A (en) | 1988-07-26 |
Family
ID=11845628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62013884A Pending JPS63181402A (en) | 1987-01-23 | 1987-01-23 | Resin magnet molding material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63181402A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60188459A (en) * | 1984-03-09 | 1985-09-25 | Kanegafuchi Chem Ind Co Ltd | Composition for synthetic resin magnet, synthetic resin magnet composed of the same and production thereof |
| JPS6120301A (en) * | 1984-07-09 | 1986-01-29 | Kanebo Ltd | Permanent magnet material |
| JPS61198702A (en) * | 1985-02-28 | 1986-09-03 | C I Kasei Co Ltd | Composition of magnet |
-
1987
- 1987-01-23 JP JP62013884A patent/JPS63181402A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60188459A (en) * | 1984-03-09 | 1985-09-25 | Kanegafuchi Chem Ind Co Ltd | Composition for synthetic resin magnet, synthetic resin magnet composed of the same and production thereof |
| JPS6120301A (en) * | 1984-07-09 | 1986-01-29 | Kanebo Ltd | Permanent magnet material |
| JPS61198702A (en) * | 1985-02-28 | 1986-09-03 | C I Kasei Co Ltd | Composition of magnet |
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