I2625l5 (1) 九、發明說明 ▲明所屬之技術領域】 本發明，是有關裝備了異方性橡膠磁鐵及該橡膠磁鐵 契_件的馬達以及磁鐵滾子。 且’本發明，是有關混合橡膠及鐵酸鹽粉末的橡膠磁 _的製造方法。 t先前技術】 對於習知的異方性橡膠磁鐵的製造方法，將其一例如 以下顯示。在此製造方法中，首先將鐵酸鹽粉末及橡膠加 壓攪和’獲得一定的粘度的組成物之後，在磁場中進行壓 出成形地製作異方性成形體。進一步，在此成形體進行脫 磁處理之後，進行滾子壓延而形成均一厚度的薄片，依據 需要進行架橋處理（熱處理）而獲得橡膠磁鐵的前驅體。 而且，切斷加工成需要的尺寸之後，藉由進行著磁處理， 獲得橡膠磁鐵。然而，使用的方便上，多在橡膠磁鐵的前 驅體的階段處理，而前驅體的階段的製品也稱作橡膠磁鐵 〇 如上述的異方性橡膠磁鐵，是使使成爲磁鐵原料的鐵 酸鹽的結晶定向（C軸）在橡膠中朝一定方向對齊，藉由 著磁處理具有磁力朝一方向形成的性質，因此成爲強力的 磁鐵。旦’橡膠磁鐵，容易獲得衝擊強且薄物的製品，且 ，可以任意形狀成形。因此，如上述，異方性橡膠磁鐵， 是在電氣機械的領域、0A機器的領域等被廣泛使用。 (2) l262515 橡膠磁鐵，雖是組合橡膠特有的延伸或可撓性爲特徵 5但是磁鐵本身的磁性特性也重要。 但是，習知的使用鐵酸鹽磁鐵的異方性橡膠磁鐵，殘 留磁束密度（B 1.)最多2 4 5 m T程度。 在此，本發明的課題，是提供一種可提高橡膠磁鐵的 磁性特性用的技術。 【發明內容】 Φ 一般，高鐵酸鹽粉末的使用比率（充塡率）高的的話 ，所獲得組成物的粘性也會變高，高磁場中壓出成形時鐵 ' 酸鹽粉末的定向度不會變高，無法獲得具有高殘留磁束密 · 度（B 〇的異方性橡膠磁鐵。但是，本發明人等，是藉由 將可塑劑及滑劑的使用比率最適化，得知可抑制所獲得的 組成物的明顕粘性增加。 依據此了解，本發明，是提供一種異方性橡膠磁鐵， 至少含有橡膠材、可塑劑、滑劑及鐵酸鹽粉末的橡膠磁鐵 i ，其特徵爲：對於橡膠材1 〇 〇重量部，可塑劑的比率是 1 0〜3 0 wt%，滑劑的比率是 8〜3 0 wt% ,鐵酸鹽粉末的比 率是如以下定義的鐵酸鹽量爲66%以上，定向度是84%以 上。 進一步含有對於前述鐵酸鹽粉末〇」〜3wt %的有機矽 烷偶合劑較佳。 鐵酸鹽量=〔（從密度計算的鐵酸鹽粉末的體積）/(從各 密度計算的各成分的體積的合計）〕X ] 〇 〇 -6 - (3) 1262515 (但是，鐵酸鹽粉末的密度是5 . 1 MS/m 3 ^有機成分 (橡膠材、可塑劑及滑劑）的密度是].0 M g /m 3 )。然而 ，在異方性橡膠磁鐵含有碳黑的情況中，碳黑的密度也以 L 0 M g / m 3求得鐵酸鹽量。 本發明的異方性橡膠磁鐵’是使用於具備圓筒狀的固 定子及轉子的馬達最佳。即’本發明是提供一種主由配置 於外殼內且著磁圓筒狀的固定子及配置於該固定子內的轉 子及構成的馬達。圓筒狀的固定子’是由本發明的異方性 橡膠磁鐵所構成。 且本發明的異方性橡膠磁鐵，使用於磁鐵滾子最佳。 具體上，在由上述異方性橡膠磁鐵所構成的圓筒體或是圓 柱體的外周面形成多數的磁極’就可以形成磁鐵滾子。 且本發明，是提供一種橡膠磁鐵的製造方法’其特徵 爲：在鐵酸鹽粉末及橡膠材等添加水分的狀態下進行攪和 處理。 提高定向度的便宜的方法’有添加酒精或蠟的方法， 但是這些的添加劑是有會分解橡膠的分子構造的問題。 對於此，在添加水分的狀態下進行鐵酸鹽粉末及橡膠 材等的攪和處理的話，可提高鐵酸鹽粉末的定向度，而提 高磁性特性（殘留磁束密度Br )。此磁性特性的提高’ 是被認爲因爲添加的水，使攪和時降低施加於鐵酸鹽粉末 的應力。且，因爲是添加水分，所以不會分解橡膠的分子 構造，對於氧化物的鐵酸鹽粉末也不無良影響。 在本發明，對於鐵酸鹽粉末的水分的添加率爲W d的 -7- (4) 1262515 話，添加水分至重量百分率 Ο . 1 $ λλ/ d $ 2.0 w t %的範圍較佳 c 水分添加率W d爲Ο . 1 $ w d s 2.0 w t %的範圍的話’在 貫用的時間內可充分攪和的同時，磁性特性提高的效果顯 著。 且5 —邊將鐵酸鹽粉末及橡膠材加熱至1 〇 〇 c以上一 邊加壓攪和較佳◦藉由在1 0 0 °C以上的加熱狀態的加壓攪 和，可使水分的揮發圓滑地進行。且，藉由加壓使鐵酸鹽 粉末在橡膠材中容易均一地分散。 且，藉由加熱調整鐵酸鹽粉末及橡膠材的混合體的殘 留水分量較佳。藉由利用加熱調整殘留水分量，就可控制 水分的揮發量可以獲得成形後的特性最佳的殘留水分量。 特別是，可以達成將混合體成形所獲得的橡膠磁鐵的硬度 維持及可撓性的劣化防止。 處理攪和鐵酸鹽粉末及橡膠材獲得混合體之後，將所 獲得的混合體成形成預定形狀就可獲得橡膠磁鐵，但是調 整殘留水分量至 0<Wr s (K05wt%的範圍較佳（在由，Wr 是攪和處理後的殘留水分量）。 然而，因爲可以獲得耐熱性及耐油性優秀的橡膠磁鐵 ,所以使用丁腈橡膠作爲上述橡膠材較佳。 【實施方式】 以下，詳細說明本發明。首先，說明本發明的異方性 橡膠磁鐵。本發明的異方性橡膠磁鐵，是至少含有橡膠材 冬 1262515 (5) 、可塑劑、滑劑及鐵酸鹽粉末。 橡膠材是丁腈橡膠最佳。丁腈橡膠（N B R )，是由丙 烯腈及丁二烯的共聚合所獲得的共聚合橡膠。N B R是耐 熱性及耐油性優秀。 N B R中的丙烯丁腈含量是1 8〜5 0 %，較佳是2 6〜4 2 % 〇NBR是具有ML]+4(10(TC)是25以上的高門尼粘度 (高分子量）較佳。門尼粘度是3 0〜6 0更佳，爲了獲得 充分的可撓性，門尼粘度是3 0〜5 0更佳。 如此的NBR的市售品，例如有日本ΖΕΟΝ公司製的 「N i ρ ο 1」系歹〇 的「I 0 4 1」、「10 3 1」、「10 0 1」、 · BAYER公司製的「BERUBANAN (彳少7、'十 > )」系歹丨j、 - 曰本合成橡膠公司製的「JSRN240S」、POLYMER公司製 的「P〇LYSAKURINAKU(；f、9廿一夕夕彳于夕夕）802」 、ICI 公司製的「BUDAKON ( 7''夕〕y ) XA - 1 3 00」等。 可塑劑，可舉例：磷酸二丁酯、磷酸二辛酯、磷酸二I2625l5 (1) IX. INSTRUCTIONS OF THE INVENTION ▲ TECHNICAL FIELD The present invention relates to a motor equipped with an anisotropic rubber magnet and a rubber magnet, and a magnet roller. Further, the present invention relates to a method for producing a rubber magnetic material of a mixed rubber and a ferrite powder. t Prior Art A method for producing a conventional anisotropic rubber magnet is shown below, for example. In this production method, first, a ferrite powder and a rubber are pressure-mixed to obtain a composition having a constant viscosity, and then an anisotropic molded body is produced by extrusion molding in a magnetic field. Further, after the molded body is subjected to demagnetization treatment, roll rolling is carried out to form a sheet having a uniform thickness, and bridging treatment (heat treatment) is carried out as necessary to obtain a precursor of the rubber magnet. Further, after cutting into a desired size, a magnetic treatment was performed to obtain a rubber magnet. However, the convenience of use is mostly at the stage of the precursor of the rubber magnet, and the product of the stage of the precursor is also called a rubber magnet, such as the anisotropic rubber magnet described above, which is a ferrite which makes the magnet raw material. The crystal orientation (C-axis) is aligned in a certain direction in the rubber, and the magnetic treatment has the property of forming a magnetic force in one direction, and thus becomes a strong magnet. Once the rubber magnet is used, it is easy to obtain a product having a strong impact and a thin object, and it can be molded in any shape. Therefore, as described above, the anisotropic rubber magnet is widely used in the field of electrical machinery, the field of 0A machines, and the like. (2) The l262515 rubber magnet is characterized by the unique extension or flexibility of the composite rubber. 5 However, the magnetic properties of the magnet itself are also important. However, the conventional anisotropic rubber magnet using a ferrite magnet has a residual magnetic flux density (B 1.) of at most 2 4 5 m T . Accordingly, an object of the present invention is to provide a technique for improving the magnetic properties of a rubber magnet. SUMMARY OF THE INVENTION Φ In general, when the use ratio (charge rate) of the ferrate powder is high, the viscosity of the obtained composition is also high, and the orientation of the iron's acid powder during extrusion molding in a high magnetic field is not In the present invention, the inventors of the present invention have been able to obtain an anisotropic rubber magnet having a high residual magnetic flux density (B 〇). However, the present inventors have found that the use ratio of the plasticizer and the lubricant can be optimized. The alum of the obtained composition has an increased viscosity. It is understood that the present invention provides an anisotropic rubber magnet comprising at least a rubber material, a plasticizer, a slip agent and a ferrite powder, wherein the rubber magnet i is characterized by: For the weight of the rubber material, the ratio of the plasticizer is 10 to 30 wt%, the ratio of the slip agent is 8 to 30 wt%, and the ratio of the ferrite powder is the amount of ferrite as defined below. 66% or more, the orientation degree is 84% or more. Further, it is preferable to contain an organic decane coupling agent to the above-mentioned ferrite powder 〇 〜3 wt %. The amount of ferrite = [(volume of ferrite powder calculated from density) / (The body of each component calculated from each density Total)〕X ] 〇〇-6 - (3) 1262515 (However, the density of ferrite powder is 5.1 MS/m 3 ^The density of organic components (rubber, plasticizer and slipper) is]. 0 M g /m 3 ) However, in the case where the anisotropic rubber magnet contains carbon black, the density of the carbon black is also determined by the amount of ferrite at L 0 M g / m 3 . The anisotropic rubber of the present invention The magnet 'is preferably used for a motor having a cylindrical stator and a rotor. That is, the present invention provides a stator that is disposed in a casing and has a magnetic cylindrical shape and a rotor that is disposed in the stator. And a motor of the configuration. The cylindrical stator ' is composed of the anisotropic rubber magnet of the present invention. The anisotropic rubber magnet of the present invention is preferably used for a magnet roller. Specifically, the above-described heterogeneous The cylindrical body formed of the rubber magnet or the outer peripheral surface of the cylinder forms a plurality of magnetic poles' to form a magnet roller. The present invention provides a method for producing a rubber magnet, which is characterized in that ferrite powder is used. Stirring treatment is carried out in a state where water is added to the rubber material or the like. An inexpensive method of adding a method of adding alcohol or wax, but these additives have a problem of decomposing the molecular structure of the rubber. In this case, the ferrite powder and the rubber material are agitated in a state where water is added. In this case, the orientation of the ferrite powder can be increased, and the magnetic properties (residual magnetic flux density Br) can be improved. This increase in magnetic properties is considered to be due to the added water, which reduces the stress applied to the ferrite powder during the agitation. Moreover, since the water is added, the molecular structure of the rubber is not decomposed, and the ferrite powder of the oxide is not adversely affected. In the present invention, the addition ratio of the moisture of the ferrite powder is W d - 7- (4) 1262515 words, add moisture to the weight percentage Ο. 1 $ λλ / d $ 2.0 wt % range better c moisture addition rate W d is Ο . 1 $ wds 2.0 wt % range then 'in use At the same time, the magnetic properties can be sufficiently agitated while the magnetic properties are sufficiently agitated. And 5 - while ferrite powder and rubber material are heated to 1 〇〇c or more, and it is preferably stirred by pressure, and the water is volatilized by the pressure stirring in a heating state of 100 ° C or more. get on. Further, the ferrite powder is easily and uniformly dispersed in the rubber material by pressurization. Further, it is preferred to adjust the residual moisture content of the mixture of the ferrite powder and the rubber material by heating. By adjusting the amount of residual water by heating, it is possible to control the amount of volatilization of moisture to obtain the residual moisture content which is optimal in characteristics after molding. In particular, it is possible to achieve the maintenance of the hardness of the rubber magnet obtained by molding the mixture and the deterioration of the flexibility. After the mixture of the ferrite powder and the rubber material is obtained to obtain a mixture, the obtained mixture is formed into a predetermined shape to obtain a rubber magnet, but the residual moisture content is adjusted to 0 < Wr s (the range of K05 wt% is better (by Wr is a residual moisture component after the agitation treatment. However, since a rubber magnet excellent in heat resistance and oil resistance can be obtained, it is preferable to use nitrile rubber as the rubber material. [Embodiment] Hereinafter, the present invention will be described in detail. First, the anisotropic rubber magnet of the present invention will be described. The anisotropic rubber magnet of the present invention contains at least a rubber material, 1262615 (5), a plasticizer, a slip agent, and a ferrite powder. The rubber material is the most nitrile rubber. Nitrile rubber (NBR) is a copolymerized rubber obtained by copolymerization of acrylonitrile and butadiene. NBR is excellent in heat resistance and oil resistance. The content of propylene butyronitrile in NBR is 18 to 50%. Preferably, 2 6 to 4 2 % 〇NBR is preferably a high Mooney viscosity (high molecular weight) having ML]+4 (10(TC) of 25 or more. The Mooney viscosity is preferably 3 0 to 60. In order to obtain full flexibility, Mooney The degree is preferably 30 to 50. The commercial products of the NBR are, for example, "I 0 4 1" and "10 3 1" of the "N i ρ ο 1" system manufactured by Nippon Paint Co., Ltd. 10 0 1", "BERUBANAN (彳少7, '十>)" by BAYER, 歹丨j, - "JSRN240S" manufactured by Sakamoto Synthetic Rubber Co., Ltd., and "P〇LYSAKURINAKU" by POLYMER Co., Ltd. f, 9 廿 彳 彳 彳 夕 ) ) 802 802 802 802 802 802 802 BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU BU Octyl ester, phosphoric acid
乙酯等的 酸酯等。且，使用於各種的偏苯三酸酯也最佳 I 〇 滑劑，可舉例：石蠟、流動石蠟、聚乙烯蠟、微晶石 蠟等的蠟類；三硬脂精酸、月桂精酸、軟脂酸、油酸、廿 二烷酸等的脂肪酸類、三硬脂精酸鈣、三硬脂精酸鎂、三 硬脂精酸鋰、三硬脂精酸鋅、月桂精酸鈣等的金屬石鹼類 ;三硬脂精酸醯胺、油酸醯胺、芥酸醯胺、月桂精酸醯胺 等的脂肪酸醯胺類；十八烷酒精、月桂酒精、蜂花酒精等 的高級酒精類；三硬脂精酸丁、三硬脂精酸甲等的脂肪酸 -9 ‘ 1262515 (6) 酯。在這些中，金屬石鹼類是較佳，特別是三硬脂精酸鋅 較佳。 鐵酸鹽，是Μ 0 · 6 F e 2 0 3 ( S r、B a、P b )所表示的 強磁性體，特別是使用S ι·.鐵酸鹽最佳。例如，S i-鐵酸 鹽，是調合氧化鐵（Fe2 0 3 ) 6克分子及碳酸緦（SrC03 ) ]克分子之後，呈顆粒狀地製粒，由約]1 0 0 °C的高溫窯進 行反應煅燒，冷卻後，由球磨機等粉碎成0。5〜3.0 pm而 獲得。然而，鐵酸鹽粉末可依據需要藉由聯接劑進行表面 處理也可以。 在本發明，是使用壓粉密度3.3Mg/m3以上的鐵酸鹽 粉末最佳 ° 在本發明，壓粉密度（Mg/m3 )，是將25g的鐵酸鹽 粉末放入直徑2.54cm的圓柱狀模具，由成模壓iton成形 ，從此時的高度的測量値算出密度的値。 在本發明的異方性橡膠磁鐵中，可塑劑及滑劑之外， 進一步可以含有有機矽烷偶合劑。藉由使用有機矽烷偶合 劑’可提高異方性橡膠磁鐵的硬度。有機矽烷偶合劑，單 獨使用之外’作爲鐵酸鹽粉末的表面處理劑使用也可以。 有機矽烷偶合劑，一般式：X - R · S i ( 0 R ) 3，分子中 具有2個相異的官能團（X及〇 r )。而且，一方的官能 團（X ) ’是有機質材料及化學結合官能團（例如，乙烯 基、環氧基、氨基、異丁烯基、锍基等），其他方的官能 Μ ( OR ) ’是無機質材料及化學結合官能團（對甲氧基 '氧基等）’藉由這些的組合，市售有各種的有機矽烷偶 - 10 - 1262515 (7) 合劑。可舉例，G E東芝矽公司製的「丁 S L 8 3 3 1」、仏越 化學公司製的「KBM 6 0 2」、Dow Cornjllg T〇ray S]llCC)ne 公司製的「SH6 0 62」、味之素公司製的「PURUNEAKUT〇 (7° > 7夕卜）」等。 含有有機矽烷偶合劑的情況時，其tb $胃® @ _ 粉末0 ·]〜3 w t %，最好是0 . 1〜1 w t %。 在本發明，可依據需要，上述的成分之外’可以使用 架橋劑、架橋助劑、碳黑等的添加成分。 架橋劑，是使用硫黃或過氧化物最佳。過氧化物’可 舉例：KAYAKUAKZO公司製的「KAYAMECH (力十〆7 夕）A」、「TORIGONOKUSU (卜 U 〕、、y 7 夕只）TMBH 」、曰本油脂公司製的「PAAKUMIRU ( Z —夕$少）D 」，「PAAHEKISA(/ — '牛寸）25B」等。架橋劑的調 合量，每橡膠材1〇〇重量部爲0.4〜3.0重量部，較佳是 0.8〜2.4重量部。 架橋助劑（架橋促進劑），可舉例：氧化鋅、氧化鎂 、二苯並噻唑等。倂用這些是2種以上也可以。架橋助劑 的調合量，每接合劑I 0 0重量部爲〇 . 1〜1 5重量部，較佳 是].〇〜]0重量部。 在本發明’是如述的各成分的使用比率，是對於橡朦 材]0 0重量部’可塑劑的比率爲】〇〜3 0 w t %，滑劑的比率 爲8〜3 〇t °/°。可塑别的希望比率爲2 0〜2 5 w t °/〇，滑劑的 希望比率是]2〜25wt% ° 鐵酸鹽粉末的比率，是定義於以下的鐵酸鹽量爲6 6 % -11 - 1262515 (8) 以上，最好是6 8 %以上，更好是7 Ο %以上地設定。 鐵酸鹽量的上限通常爲8 0 %。然而，鐵酸鹽量7 0 %， 是對於全成分的重量的鐵酸鹽粉末的重量比相當於約 ]6 0 0 〜]7 0 0 w t %。 鐵酸鹽量=〔（從密度計算的鐵酸鹽粉末的體積）/(從各 密度計算的各成分的體積的合計）〕X 1 〇〇…·式（1 ) (但是，鐵酸鹽粉末的密度是 5. lMg/m3，有機成分 (橡膠材、可塑劑及滑劑）的密度是1 .OMg/m3 ) 藉由滿足上述的條件的同時，可獲得具有高殘留磁束 密度（B r )的異方性橡膠磁鐵。如此的效果，是使用壓粉 密度爲3.3 Mg/m3以上的鐵酸鹽粉末的情況時最顯著。 具體上，依據本發明的異方性橡膠磁鐵，可以獲得 2 6 0 m T以上，較佳是 2 7 0 m T以上的殘留磁束密度（B 1* ) 。然而，殘留磁束密度（Br )的上限通常是2 8 0 mT。 本發明的異方性橡膠磁鐵，通常是由薄片的形態所獲 得。異方性橡膠磁鐵薄片的情況的厚度雖可任意，但是後 述的馬達的固定子用途的情況的厚度，通常是 0.5〜3 mm c 然而，異方性橡膠磁鐵的形態是任意，例如，棒狀體 等也可以。本發明的異方性橡膠磁鐵的較佳製造方法如後 述。 接著，說明本發明的馬達。本發明的馬達，是由配置 -12 - (9) 1262515 於外殼內且著磁圓筒狀的固定子及配置於該固定子內的轉 子所構成的馬達，上述的固定子是由本發明的異方性椽膠 磁鐵所構成爲其特徵。 即，本發明的馬達的基本地結構，是與習知公知的馬 達相同，固定子的材料爲使用前述的本發明的異方性橡膠 磁鐵的點爲其特徵。將本發明的橡膠磁鐵適用於小型馬達 的情況時，在直徑2 0〜3 0 m m的馬達用殼將薄片狀的椽膠 磁鐵捲起壓入即可。因此，橡膠磁鐵雖需要可撓性的，但 是本發明的橡膠磁鐵彈性高，具備所期的可撓性。且，因 爲壓入殼，所以在橡膠磁鐵也需要某程度的剛性，但是如 後述實施例，本發明的橡膠磁鐵也具備所期的剛性。 然而，將薄片狀的橡膠磁鐵預先加工成圓筒狀，適用 於固定子也可以。 接著，說明本發明的磁鐵滾子。本發明的磁鐵滾子， 是在異方性橡膠磁鐵的圓筒體或是圓柱體的外周面形成多 數的磁極的磁鐵滾子，而異方性橡膠磁鐵，是使用前述的 本發明的異方性橡膠磁鐵爲其特徵。異方性橡膠磁鐵的圓 柱體及圓筒體可以藉由前述的磁場中壓出成形而獲得。磁 鐵滾子，通常，於其兩端部設有旋轉用卡止部（軸部等） ，例如作爲靜電式影印機的顯像滾子等使用。 依據以上說明的本發明，可提高對於橡膠材的鐵酸鹽 粉末的充塡率，並提供具有高殘留磁束密度（B 〇的異方 性橡膠磁鐵，本發明的工業地價値顯著。 具體上，本發明的異方性橡膠磁鐵，在各種的領域， -13- (10) 1262515 例如：馬達（含直流馬達、交流馬達、小型馬達）、正時 器、發電機、簧片開關等的電氣機械的領域、影印機、電 算機、印表機、電話、鍵盤等的辦公室自動化機器的領域 、挾盤、黏貼標簽、教材用具等的吸著力利用領域，皆可 最佳地利用。 接著，對於本發明的異方性橡膠磁鐵的較佳製造方法 ，參照添付圖面說明。 如第1圖所示，本發明的橡膠磁鐵的製造方法，是包 含攪和過程、粉碎過程、成形過程、壓延過程、熱處理過 程（架橋處理過程）及切斷過程。 第2圖是模式地顯示橡膠磁鐵的製造線的一例。攪和 原料之後，所獲得的混合體被粉碎導入成形部1，藉由壓 出法等呈薄片狀成形。所獲得的成形體，是送出至配設於 成形部1之後段的壓延部2。壓延部2是具備2段的壓延 機（滾子）3，將磁性薄片調整至預定的厚度。在壓延部 2的後段是具備架橋處理部4，由壓延機3壓延的薄片狀 的成形體是從壓延部2朝架橋處理部4送出。架橋處理部 4是由維持於預定的加熱狀態的加熱爐等構成，含有薄片 狀的成形體的架橋劑是在架橋處理部4硬化。如此，可使 成形過程、壓延過程、進一步架橋處理過程實質上連續進 行。 本發明是在攪和過程及成形過程具有特徵，以下，依 序說明各過程。 1262515 (11) [擅和過程〕 在攪和過程（步驟S 1 )中，在橡膠材 '及鐵酸鹽粉 末、及預定的添加劑添加水（水分）的狀悲下加壓攪和處 理而獲得混合體（橡膠磁鐵用成形素域）° 在橡膠材中，上述丁腈橡膠最佳。 在鐵酸鹽粉末使用上述S 1. ·鐵酸鹽最佳。 在前述預定的添加劑中，可舉例滑劑、架橋劑、架橋 助劑（架橋促進劑）、可塑劑。這些的添加劑，可以使用 上述者。且依據需要，上述的成分之外，可以使用碳黑等 的添加成分。 前述水，從成本及使用容易度的點，使用蒸留水、純 水、水道水、離子交換水等較佳。水，使用於氧化物鐵酸 鹽粉末也無問題。 且’水，是可以直接添加於橡膠材及鐵酸鹽粉末。更 整體地將水一樣地分散添加的話，噴漆法較佳。 然而’將水（水分）添加於橡膠材及鐵酸鹽粉末後攪 和，或在攪和中添加水也可以。 在此攪和過程S ]中，由加熱至]〇 0。(3以上在加壓攪 和機（卩壓擅ΐΠ機）混合上述材料較佳D由此，水分的揮 發可良好進行的同時，藉由加壓容易將鐵酸鹽粉末均一分 散於橡膠材。 且’在此攪和過程S ]中，對於鐵酸鹽粉末的水的添 加率爲w d的話，將水分添加至重量百分率〇 . ] $ w d $ 2 · 0 w t %的範圍。由此，在實用的時間內可充分地攪和的同 -15- 1262515 (12) 時，磁性特性的提高效果顯著。即，殘留水分量Wl.超過 2。0 w t %的話，因爲水分揮發所需要的攪和時間長，所以損 失實用性。一方面，殘留水分量W r是〇 · ] w t %以下時，因 爲殘留磁束密度（B !·)的提高效果小。 進一步’藉由加熱將鐵酸鹽粉末及橡膠材的混合體的 殘留水分量Wr，調整至攪和處理後〇<Wi.g 〇.〇5wt%的範 圍內較佳。由此，可以防止成形後的架橋處理時的膨脹或 可撓性劣化而產生裂紋等。這是因爲，殘留水分量Wl.是 〇 wt %的話，將混合體成形的橡膠磁鐵的可撓性會劣化， 會產生裂紋等的問題，所以需要適合量的可塑劑。且，殘 留水分量W 1·超過0.0 5%的話，在將混合體成形後的架 橋處理（熱處理過程S 5 )時會發生膨脹等的問題，所以 最終地的橡膠磁鐵的硬度會降低。 且，將對於混合體的整體量的鐵酸鹽粉末的混合比率 ，設定成體積比爲66〜8 Ovol%。由此，可以兩立磁性特 性及成形性。即，鐵酸鹽粉末的混合比率會6 6 v ο 1 %未滿 及磁性特性（特別是殘留磁束密度B r )會不充分，混合 比率超過80vol %的話，混合體的壓出成形會成爲困難。 在以上，雖在添加水（水分）的狀態進行攪和過程（ 步驟S 1 )，但是使用由水稀釋的聯接劑進行攪和過程也 可以。 稀釋聯接劑的溶劑，也有酒精類等。但是，因爲由橡 膠材的溶劑或會與橡膠材過剩反應的物質不適合作爲溶劑 ，所以聯接劑是由水所稀釋。 -16- (13) 1262515 聯接劑的稀釋濃度，是2 0〜 因爲’稀釋濃度2 0 w t %未滿的話 末的溶劑的量會過多，使攪和設 過5 0 w t %的話，聯接劑的分散效 鹽粉末的充分凝集抑制效果，不 〇 添加稀釋聯接劑的情況時， 量 W1·及對於混合體的整體量的 是與上述水添加的情況同樣即可 在鐵酸鹽粉末及橡膠材的攪 水被稀釋分散的狀態下投入，所 一地分散地抑制鐵酸鹽粉末的凝 高磁性特性。 且’在攪和過程時，使原液 散的狀態下添加也可以。β卩，將 使用噴漆法在鐵酸鹽粉末及橡膠 以。由此，即使不進行溶劑的稀 粉末整體均勻分散，可以抑制由 投入所產生的鐵酸鹽粉末的凝集 且’因爲使用噴漆法添加聯 末整體分散添加均一地霧狀的聯: 〔粉碎過程、成形過程〕 接著，粉碎被加壓攪和處理 。5 0wt%的範圍較佳。這是 ，對於椽膠材及鐵酸鹽粉 備過大。且5稀釋濃度超 果會減少，無法獲得鐵酸 易獲得均一性高的混合體 其添加時間點、殘留水分 鐵酸鹽粉末的混合比率5 〇 和時，因爲聯接劑是耢由 以攪和的同時使聯接劑均 集，藉由均一的攪和來提 的聯接劑呈空間一樣地分 聯接劑在原液的狀態下’ 材的攪和時分散投入也可 釋，聯接劑也可朝鐵酸鹽 滴下等的局所的聯接劑的 〇 接劑，所以對於鐵酸鹽粉 接劑。 成一定的粘度的混合體（ - 17 - 1262515 (14) 步驟S 2 )。 使用此粉碎粉末由例如壓出法成形（步騾S 3 ) ’就 可獲得成形成薄片狀等的任意的形狀的成形體。壓出成形 的情況，壓出隨後的成形體的溫度是8 0〜]2 〇它。 然而，成形可以在磁場中進行。在磁場中進行壓出成 形時，使用在模具周圍配置磁場線圈的壓出機，例如，在 磁場強度1 1 〇〇〜1 6 00kA/m的條件下進行成形即可。由磁 場中壓出成形所獲得的異方性成形體的定向度是80%以上 ，最好是85%以上。 對於所獲得的成形體，進行脫磁處理，朝壓延過程前 進。 〔壓延過程〕 由上述條件進行成形之後，將成形體滾子壓延，獲得 所期的厚度的磁性薄片（步驟 S 4 )。在滾子壓延可以使 用例如壓榨滾子。 在此，將在預定的加熱狀態的磁性薄片壓延較佳。壓 延時的磁性薄片的溫度，最好是維持 2 5〜8 (TC。壓延時 的磁性薄片的溫度爲2 5〜8 0 °C的話，壓延時附與鐵酸鹽 粉末的應力會減輕，最終可以獲得保磁力（HcJ )的高橡 膠磁鐵。且，此溫度範圍的話，因爲不會進行架橋，可以 確保可撓性。隨著壓延時的磁性_片的溫度上昇，可以獲 得高保磁力，但是壓延時的磁性薄片的溫度超過8 0 °C的 話，會使軟化磁性薄片朝滾子附著壓延成爲困難。因此， -18 - 1262515 (15) 壓延時的磁性薄片的溫度是8 〇艺以下。壓延時的磁性薄 片的溫度最好是3 〇〜8 0 °C，更好是5 〇〜8 0 °C。 滾子的溫度調整雖不必要，但是調整成與壓延時的成 形體的溫度同程度的溫度的話，可以獲得最終安定特性的 橡膠磁鐵。然而，滾子的溫度調整，是使保持於例如J G 〜8 0 °C的液體在滾子內循環即可。 壓延時的壓下率雖特別限定，但是壓下率過小的話’ 壓延的次數會增加。相反地壓下率過大的話，殘留磁束您 度（Br)會下降。因此，壓下率是5〜60 %，最好是5〜 3 0%即可。例如，磁性粉末使用鐵酸鹽粉末，NBR使用接 合劑，壓出隨後的成形體的厚度是2.4mm的情況時，由 壓延使成形體的厚度爲1〜2mm。藉由對於壓延的反彈’ 會使壓延後的磁性薄片的厚度比滾子間隔厚更厚，但是本 發明所推獎藉由壓延在加熱狀態的磁性薄片，抑制反彈的 厚度的變化，使製品尺寸的調整成爲容易。 或者是，以壓延時的磁性薄片的硬度爲基準，設定懕 延條件也可以。例如，鐵酸鹽粉末、橡膠材使用N B R的 情況時，壓延時的磁性薄片的硬度爲2 7以下，最好是]5 〜2 6，更好是]5〜2 3。在常溫壓延的情況時，磁性薄片 的硬度是約2 8。一方面，對於保持於比常溫高的預定溫 度的磁性薄片的壓延時的硬度是2 7以下的話，因爲與由 常溫所壓延的情況相比磁性薄片的硬度較低，所以壓延時 可以緩和附與磁性粉末的應力。然而，本案說明書的硬度 ，是依據於j I S B 7 7 2 7測量的肖爾D硬度。 - 19 - 1262515 (16) 壓延是由至少2段進行較佳。爲了厚度調畫 大的壓下率進行壓延的話，在磁性薄片朝其長月 性薄片的行走方向）發生起伏現象。產生了起 片無法成爲製品，但是可以在]段的壓延之後華 小的壓下率壓延就可抑制或消除起伏。因此，1 主是進行厚度調整，第2段之後的壓延是爲了仓 平坦。藉由增加第2段之後的壓延次數可提高石] 平坦性。但是，增加壓延的次數的話過程數也| 時，因過度的壓延而附與磁性粉末應力的話保石] ，將壓延多段進行的情況時其段數爲2〜4，更 〔熱處理（架橋處理）過程〕 在熱處理過程中，藉由將被壓延的磁性薄片 1 75 °C保持 5〜40分，就可獲得橡膠磁鐵的前驅 此熱處理，緩和壓延時附與鐵酸鹽粉末的應力。 處理的條件，是在1 6 0〜1 7 0 °C保持1 〇〜3 0分。 添加劑包含架橋劑的情況時，熱處理是兼具 。此情況，熱處理的溫度是低至1 5 5 °C程度爲止 橋處理所需要的時間長而不佳。一方面，藉由超 的高溫下的架橋處理，使具有所期的強度、可撓 磁鐵安定獲得是困難的。 〔切斷過程〕 由比較上 方向（磁 的磁性薄 由比較上 段的壓延 磁性薄片 性薄片的 增加的同 力會下降 :是2〜3 在 1 6 0〜 體。藉由 較佳的熱 架橋處理 的話，架 過 1 7 5 °C 性的橡膠 -20- 1262515 (17) 在切斷過程中，將由架橋硬化的磁性薄片切斷成所期 的尺寸。切斷後的磁性薄片被著磁處理，作爲橡膠磁鐵使 用。然而，將橡膠磁鐵作爲馬達的固定子用的情況時’著 磁，通常是在外殼內配置橡膠磁鐵的圓筒體後進行° 以上，說明本發明的異方性橡膠磁鐵的較佳製造方法 。在本實施例中，在添加水分的狀態下將鐵酸鹽粉末及橡 膠材攪和處理。由此，提高磁性特性（殘留磁束密度B ^ )，同時，不會影響由添加水分所產生的橡膠材的分子構 造。然而，磁性特性的提高，是因爲藉由添加的水，會降 低攪和時施加於鐵酸鹽粉末的應力。且，因爲添加物是水 ，所以使用氧化物的鐵酸鹽粉末也無問題。 然而，本發明的技術範圍不限定於上述各實施例，不 脫離本發明的宗旨的範圍可加上各種的變更。 例如，本實施例中雖顯示使用鐵酸鹽粉末的例，但是 不限定於此，希土類粉末也可以適用於本發明的橡膠磁鐵 的製造方法。希土類粉末，可以適用：R-TM-B系粉末（ R是希土類元素的1種或是2種以上，TM是Fe，或是Fe 及C 〇 ) 、R - C 〇系粉末。在此，R是具有包含γ的槪念， 從 La、Ce、P】·、Nd、Sm、Eu、Gd、丁b、Dy、Ho、Er、 Yb、LU及Y的1種或是2種以上選擇。進一步，爲了改 善保磁力，讓 A1、CI·、Μ η、M g、S i、C u、C、N b、S η、 W、V、Zi·、Ti、Mo、Bi、Ag及Ga等的元素含有1種或 是2種以上也可以。且，R-Co系粉末，是含有從R、及 F e，N i，從Μ η及C r選擇的]種以上的元素、及C 〇。此 -21 - 1262515 (18) 情況，較佳是進一步含有C u或是從N b、Ζ ι.、T a、H f、T i 及V選擇的]種以上的元素，特佳是含有C u、及從N b、 Z r、T a、H f、T i及V選擇的]種以上的元素。在這此之 中特別是，以 Sm及 Co的金屬間化合物，較佳是以 Sm2C〇】7金屬間化合物爲主相，在粒界存在SmC〇5系爲主 體的副相。 然而，在鐵酸鹽粉末及橡膠材等的接合劑添加水分的 狀態下攪和的本發明的技術思想，其接合劑是使用彈性體 、塑膠等的樹脂的情況也適用。 〔實施例〕 以下，藉由實施例更詳細說明本發明，但不是限定# 發明爲以下的實施例。 〔實施例]〕 (試料N 〇 . 1〜5 ) — 使用第3圖所示的原材料，由第4圖所示的調合 將各成分由攪和機加壓攪和而獲得組成物。然而’鐵^ ^ 粉末的混合比率，是顯示對於混合體整體量的體積百％ & _ 、 f l、i下的An ester or the like of an ethyl ester or the like. Moreover, it is also used as a best I slip agent for various trimellitic acid esters, and examples thereof include waxes such as paraffin wax, mobile paraffin wax, polyethylene wax, and microcrystalline paraffin; tristearic acid, lauric acid, and soft a fatty acid such as fatty acid, oleic acid or decanoic acid, a metal such as calcium tristearate, magnesium tristearate, lithium tristearate, zinc tristearate, calcium laurate Rock alkalis; fatty acids amides such as tristearic acid decylamine, oleic acid decylamine, erucic acid decylamine, lauric acid decylamine, etc.; advanced alcohols such as octadecyl alcohol, laurel alcohol, bee flower alcohol, etc. Fatty acid-9' 1262515 (6) ester of tristearate, tristearate, etc. Among these, metal bases are preferred, and especially zinc tristearate is preferred. The ferrite is a ferromagnetic body represented by Μ 0 · 6 F e 2 0 3 (S r, B a, P b ), and in particular, it is preferable to use S··· ferrite. For example, S i-ferrite is a high-temperature kiln with a particle size of about 1200 ° C after blending iron oxide (Fe 2 0 3 ) 6 mol and strontium carbonate (SrC03 ) gram molecules. The reaction calcination is carried out, and after cooling, it is obtained by pulverizing it into a ball mill or the like to 0.5 to 3.0 pm. However, the ferrite powder may be subjected to surface treatment by a coupling agent as needed. In the present invention, it is preferable to use a ferrite powder having a powder density of 3.3 Mg/m3 or more. In the present invention, the powder density (Mg/m3) is 25 g of ferrite powder placed in a cylinder having a diameter of 2.54 cm. The mold was formed by molding pressure iton, and the density 値 was calculated from the height measurement at this time. In the anisotropic rubber magnet of the present invention, in addition to the plasticizer and the lubricant, an organic decane coupling agent may be further contained. The hardness of the anisotropic rubber magnet can be increased by using an organic decane coupling agent'. The organic decane coupling agent may be used as a surface treatment agent for ferrite powder, as used alone. The organic decane coupling agent, general formula: X - R · S i ( 0 R ) 3 , has two distinct functional groups (X and 〇 r ) in the molecule. Further, one functional group (X)' is an organic material and a chemically bonded functional group (for example, a vinyl group, an epoxy group, an amino group, an isobutenyl group, a fluorenyl group, etc.), and the other functional groups (OR)' are inorganic materials and chemistry. A combination of a functional group (p-methoxy 'oxy group, etc.) by a combination of these is commercially available as a mixture of various organic decane- 10 - 1262515 (7). For example, "Ding SL 8 3 3 1" manufactured by GE Toshiba Co., Ltd., "KBM 6 0 2" manufactured by Min-Etsu Chemical Co., Ltd., "SH6 0 62" manufactured by Dow Cornjllg T〇ray S]ll CC)ne, "PURUNEAKUT〇 (7° > 7)" by Ajinomoto Co., Ltd. In the case of an organic decane coupling agent, its tb $gastric® @ _ powder 0 ·]~3 w t %, preferably 0. 1~1 w t %. In the present invention, an additive component such as a bridging agent, a bridging aid, or carbon black may be used in addition to the above-described components as needed. The bridging agent is best used with sulfur or peroxide. "Peroxide" can be exemplified by "KAYAMECH A", "TORIGONOKUSU (Bu U), y 7 )) TMBH" manufactured by KAYAKUAKZO Co., Ltd., and "PAAKUMIRU (Z -夕$少)D", "PAAHEKISA(/ - '牛寸)25B", etc. The blending agent is blended in an amount of from 0.4 to 3.0 parts by weight, preferably from 0.8 to 2.4 parts by weight, per 1 part by weight of the rubber material. The bridging aid (bridge builder) can be exemplified by zinc oxide, magnesium oxide, dibenzothiazole and the like. These are two or more types. The blending amount of the bridging aid, the weight of each bonding agent I 0 0 is 〇. 1~1 5 parts by weight, preferably 〇~]0 part by weight. In the present invention, the ratio of use of each component is as described for the rubber material, the ratio of the weight of the plasticizer is 〇~3 0 wt%, and the ratio of the slip agent is 8 to 3 〇t ° / °. The desired ratio of plasticity is 20 to 2 5 wt ° / 〇, the desired ratio of the lubricant is 2 to 25 wt % ° The ratio of ferrite powder is defined as the following ferrite amount of 6 6 % -11 - 1262515 (8) Above, preferably 6 8 % or more, more preferably 7 Ο % or more. The upper limit of the amount of ferrite is usually 80%. However, the amount of ferrite is 70%, and the weight ratio of the ferrite powder to the total weight of the component is equivalent to about 6,000 to 750 volts. Ferric acid amount = [(volume of ferrite powder calculated from density) / (total of volume of each component calculated from each density)] X 1 〇〇...·formula (1) (However, ferrite powder The density is 5. lMg/m3, and the density of the organic component (rubber material, plasticizer, and slip agent) is 1.OMg/m3). By satisfying the above conditions, a high residual magnetic flux density (B r ) can be obtained. Anisotropic rubber magnet. Such an effect is most remarkable when a ferrite powder having a powder density of 3.3 Mg/m3 or more is used. Specifically, according to the anisotropic rubber magnet of the present invention, a residual magnetic flux density (B 1* ) of 260 m T or more, preferably 270 m T or more can be obtained. However, the upper limit of the residual magnetic flux density (Br ) is usually 280 mT. The anisotropic rubber magnet of the present invention is usually obtained in the form of a sheet. The thickness of the anisotropic rubber magnet sheet may be arbitrary. However, the thickness of the stator for use in the case of the motor to be described later is usually 0.5 to 3 mm. However, the form of the anisotropic rubber magnet is arbitrary, for example, a rod shape. Body can also be. A preferred method of producing the anisotropic rubber magnet of the present invention will be described later. Next, the motor of the present invention will be described. The motor of the present invention is a motor comprising a -12 - (9) 1262515 in a housing and a magnetic cylindrical stator and a rotor disposed in the stator. The above-mentioned stator is different from the present invention. The square gelatin magnet is characterized by its composition. That is, the basic structure of the motor of the present invention is the same as that of the conventionally known motor, and the material of the stator is characterized by using the above-described anisotropic rubber magnet of the present invention. When the rubber magnet of the present invention is applied to a small motor, the sheet-shaped silicone magnet may be rolled up in a motor case having a diameter of 20 to 30 m. Therefore, the rubber magnet needs to be flexible, but the rubber magnet of the present invention has high elasticity and has a desired flexibility. Further, since the rubber magnet is required to have a certain degree of rigidity because it is pressed into the case, the rubber magnet of the present invention also has a desired rigidity as will be described later. However, the sheet-shaped rubber magnet may be previously processed into a cylindrical shape and may be applied to a stator. Next, the magnet roller of the present invention will be described. The magnet roller of the present invention is a magnet roller in which a plurality of magnetic poles are formed on the outer circumferential surface of the cylindrical body or the cylindrical body of the anisotropic rubber magnet, and the anisotropic rubber magnet uses the above-described strange side of the present invention. The rubber rubber is characterized by it. The cylinder and the cylindrical body of the anisotropic rubber magnet can be obtained by extrusion molding in the aforementioned magnetic field. The magnet roller is usually provided with a locking portion (a shaft portion or the like) for rotation at both ends thereof, and is used, for example, as a developing roller of an electrostatic copying machine. According to the invention as described above, the charging rate of the ferrite powder for the rubber material can be improved, and the anisotropic rubber magnet having a high residual magnetic flux density (B 〇 can be provided, and the industrial price of the present invention is remarkable. Specifically, The anisotropic rubber magnet of the present invention is in various fields, -13- (10) 1262515 For example, a motor (including a DC motor, an AC motor, a small motor), a timing device, a generator, a reed switch, etc. The fields of office automation equipment such as fields, photocopiers, computer printers, printers, telephones, and keyboards, etc., can be optimally utilized in the field of absorbing power utilization, such as stencils, stickers, and teaching materials. The preferred method for producing the anisotropic rubber magnet of the present invention will be described with reference to the accompanying drawings. As shown in Fig. 1, the method for producing the rubber magnet of the present invention comprises a stirring process, a pulverizing process, a forming process, a calendering process, and a heat treatment. Process (bridging process) and cutting process. Fig. 2 is an example of a manufacturing line in which a rubber magnet is schematically displayed. After mixing raw materials, the obtained mixing The bonded body is pulverized and introduced into the molded portion 1, and is formed into a sheet shape by a press-out method or the like. The obtained molded body is sent to the rolled portion 2 disposed in the subsequent stage of the molded portion 1. The rolled portion 2 is provided with two-stage calendering The machine (roller) 3 adjusts the magnetic sheet to a predetermined thickness. In the rear stage of the rolled portion 2, the bridge processing portion 4 is provided, and the sheet-shaped formed body rolled by the calender 3 is formed from the rolled portion 2 toward the bridge processing portion 4. The bridging treatment unit 4 is constituted by a heating furnace or the like that is maintained in a predetermined heating state, and the bridging agent containing the sheet-like molded body is hardened in the bridging treatment unit 4. Thus, the forming process, the calendering process, and the further bridging treatment can be performed. The process is carried out substantially continuously. The present invention has characteristics in the agitation process and the forming process, and the processes are described in sequence below. 1262515 (11) [Adhesive process] In the agitation process (step S1), in the rubber material 'and The ferrite powder and the predetermined additive are added with water (moisture) to obtain a mixture (formation element field for rubber magnet) by a pressure-stirring treatment. ° In the rubber material, the above-mentioned nitrile rubber is preferable. It is preferable to use the above S 1. ferrite in the ferrite powder. Among the aforementioned predetermined additives, a slip agent, a bridging agent, a bridging aid (bridging accelerator), a plasticizer can be exemplified. These additives can be used. In addition to the above-mentioned components, an additive component such as carbon black may be used. The water is preferably used in the form of distilled water, pure water, water channel water, ion-exchanged water, etc. from the viewpoint of cost and ease of use. Water is also used in the case of the oxide ferrite powder. Moreover, 'water can be directly added to the rubber material and the ferrite powder. If the water is dispersed as a whole, the painting method is preferable. Water (moisture) may be added to the rubber material and the ferrite powder, and then stirred or added with water. In this stirring process S], it is heated to 〇0. (3 or more in a pressure agitator ( It is preferable to mix the above materials so that the volatilization of moisture can proceed well, and the ferrite powder is easily dispersed uniformly in the rubber material by pressurization. And in the "stirring process S", the water is added to the weight percentage 〇. ] w w d $ 2 · 0 w t % in the case where the addition rate of water of the ferrite powder is w d . Therefore, when the same -15-1262515 (12) can be sufficiently stirred in a practical time, the effect of improving the magnetic properties is remarkable. In other words, when the residual moisture content W1. exceeds 2.0 volt%, the stirring time required for the evaporation of water is long, so that the practicality is lost. On the other hand, when the residual water component W r is 〇 · ] w t % or less, the effect of improving the residual magnetic flux density (B !·) is small. Further, it is preferable to adjust the residual moisture component Wr of the mixture of the ferrite powder and the rubber material by heating to a range of Wi <Wi.g 〇. 〇 5 wt% after the kneading treatment. Thereby, it is possible to prevent the expansion or the flexibility at the time of the bridging treatment after the forming from being deteriorated to cause cracks or the like. This is because if the residual moisture content Wl. is 〇 wt %, the flexibility of the rubber magnet formed by the mixture is deteriorated, and problems such as cracks occur, so that a suitable amount of the plasticizer is required. In addition, when the amount of residual water W 1· exceeds 0.05%, there is a problem that expansion or the like occurs during the bridge treatment (heat treatment process S 5 ) after the mixture is molded, so that the hardness of the final rubber magnet is lowered. Further, the mixing ratio of the total amount of the ferrite powder to the mixture was set to a volume ratio of 66 to 8 Ovol%. Thereby, magnetic properties and formability can be established. That is, the mixing ratio of the ferrite powder may be 6 6 v ο 1 % underfill and the magnetic properties (especially the residual magnetic flux density B r ) may be insufficient, and if the mixing ratio exceeds 80 vol %, the extrusion molding of the mixture may become difficult. . In the above, although the stirring process (step S1) is carried out in a state where water (moisture) is added, the stirring process may be carried out using a coupling agent diluted with water. The solvent for diluting the coupling agent is also alcoholic. However, since the solvent of the rubber material or the substance which excessively reacts with the rubber material is not suitable as a solvent, the coupling agent is diluted with water. -16- (13) 1262515 The dilution concentration of the coupling agent is 2 0~ because the amount of the solvent at the end of the dilution concentration of 20% is too large, so that the dispersion is over 50%, the dispersion of the coupling agent The effect of suppressing the sufficient agglomeration of the effect salt powder, when the diluted coupling agent is added, the amount W1· and the total amount of the mixture can be stirred in the ferrite powder and the rubber material as in the case of the above water addition. The water is supplied in a state of being diluted and dispersed, and the high magnetic properties of the ferrite powder are suppressed in a dispersed manner. Further, it is also possible to add the raw liquid in the state of the stirring process.卩 卩, will use the spray method in ferrite powder and rubber. Thereby, even if the entire diluted powder of the solvent is not uniformly dispersed, it is possible to suppress the aggregation of the ferrite powder generated by the input and to add a uniform mist-like bond by adding the total dispersion by the painting method: [Pulverization process, Forming Process] Next, the pulverization is subjected to a pressure agitation treatment. A range of 50% by weight is preferred. This is, too large for silicone rubber and ferrite powder. And 5 dilutions of the super-fruit will be reduced, and it is impossible to obtain ferric acid which is easy to obtain a mixture having a high homogeneity, the addition time point, the mixing ratio of the residual moisture ferrite powder 5 〇 and the time, because the coupling agent is a mixture of The coupling agent is evenly distributed, and the coupling agent which is lifted by the uniform stirring is spatially separated, and the coupling agent is released in the state of the raw liquid, and the dispersion agent can also be released when the material is stirred, and the coupling agent can also be dropped to the ferrite. The splicing agent of the joint agent, so for the ferrite powder. A mixture of a certain viscosity ( - 17 - 1262515 (14) Step S 2 ). By using the pulverized powder by, for example, extrusion molding (step S 3 ), a molded body having an arbitrary shape such as a sheet shape can be obtained. In the case of extrusion molding, the temperature of the subsequent formed body is 8 0 〜 2 〇 it. However, the shaping can be carried out in a magnetic field. When extrusion molding is performed in a magnetic field, an extruder equipped with a magnetic field coil around the mold may be used, for example, under the conditions of a magnetic field strength of 1 1 〇〇 1 to 6 00 kA/m. The orientation of the anisotropic shaped body obtained by extrusion molding in the magnetic field is 80% or more, preferably 85% or more. The obtained molded body was subjected to demagnetization treatment and advanced toward the calendering process. [Rolling process] After the molding is carried out under the above conditions, the formed body roller is rolled to obtain a magnetic sheet of a desired thickness (step S4). For roller rolling, for example, a press roller can be used. Here, it is preferable to calender the magnetic sheet in a predetermined heated state. The temperature of the time-delayed magnetic sheet is preferably maintained at 25 to 8 (TC. The temperature of the magnetic sheet with a time delay of 2 5 to 80 ° C, the stress of the pressure-delayed ferrite powder is reduced, and finally A high-rubber magnet with a coercive force (HcJ) can be obtained, and in this temperature range, flexibility can be ensured because bridging is not performed. As the temperature of the magnetic sheet of the time-delay increases, a high coercive force can be obtained, but calendering When the temperature of the magnetic sheet exceeds 80 ° C, it becomes difficult to adhere the softened magnetic sheet to the roller. Therefore, the temperature of the magnetic sheet of -18 - 1262515 (15) is 8 〇 or less. The temperature of the magnetic sheet is preferably 3 〇 to 80 ° C, more preferably 5 〇 to 8 0 ° C. The temperature adjustment of the roller is not necessary, but is adjusted to the same level as the temperature of the molded body to be delayed. At the temperature, a rubber magnet with a final stability characteristic can be obtained. However, the temperature of the roller is adjusted so that the liquid held at, for example, JG to 80 °C can be circulated in the roller. The reduction ratio of the pressure delay is particularly limited. But pressure If the rate is too small, the number of calendering will increase. Conversely, if the reduction ratio is too large, the residual magnetic flux (Br) will decrease. Therefore, the reduction ratio is 5 to 60%, preferably 5 to 30%. For example, when the magnetic powder uses ferrite powder and the NBR uses a bonding agent, when the thickness of the subsequent formed body is 2.4 mm, the thickness of the formed body is 1 to 2 mm by calendering. The thickness of the rolled magnetic sheet is made thicker than the thickness of the roller. However, the present invention proposes to suppress the change in the thickness of the rebound by rolling the magnetic sheet in a heated state, thereby facilitating the adjustment of the size of the product. The rolling condition may be set based on the hardness of the magnetic sheet which is time-delayed. For example, when the ferrite powder or the rubber material is NBR, the hardness of the magnetic sheet which is delayed is 27 or less, preferably 5 〜2 6, more preferably] 5~2 3. In the case of normal temperature rolling, the hardness of the magnetic sheet is about 28. On the one hand, the hardness of the magnetic sheet which is maintained at a predetermined temperature higher than the normal temperature is 2 7 or less Since the hardness of the magnetic sheet is lower than that of the case where it is calendered at normal temperature, the pressure delay can alleviate the stress attached to the magnetic powder. However, the hardness of the present specification is based on the measurement of J ISB 7 7 2 7 D hardness - 19 - 1262515 (16) Calendering is preferably performed by at least two stages. When rolling is performed for a large reduction ratio of thickness, the undulation occurs in the traveling direction of the long-form sheet of the magnetic sheet. The resulting sheet cannot be made into a product, but the rolling can be suppressed or eliminated after a rolling reduction of the section. Therefore, 1 is for thickness adjustment, and the second step is for flattening. The stone flatness can be improved by increasing the number of rollings after the second stage. However, if the number of processes is increased, the number of processes is also | When the magnetic powder stress is attached due to excessive rolling, the number of the steps is 2 to 4, and the heat treatment (bridge treatment) Process] During the heat treatment, by heating the calendered magnetic sheet at 75 ° C for 5 to 40 minutes, the heat treatment of the rubber magnet is obtained, and the stress of the ferrite powder is relieved by the pressure delay. The processing conditions are maintained at 1 0 1 to 1 0 ° C for 1 〇 to 3 0 points. In the case where the additive contains a bridging agent, the heat treatment is combined. In this case, the heat treatment temperature is as low as 155 °C, and the time required for the bridge treatment is not good. On the one hand, it is difficult to achieve stable strength and flexible magnets with a desired strength by bridging at a high temperature. [Cutting process] By comparing the upper direction (magnetic magnetic thinness by the comparison of the upper section of the calendered magnetic thin-film sheet, the same force will decrease: it is 2~3 in the 1 600-body. By better thermal bridging treatment In the case of the cutting, the magnetic sheet which is hardened by the bridging is cut into the desired size. The cut magnetic sheet is magnetically treated as the magnetic sheet. The rubber magnet is used. However, when the rubber magnet is used as a stator for the motor, the magnet is normally magnetized. Usually, the cylinder of the rubber magnet is placed in the outer casing, and then the temperature is ° or more, and the anisotropic rubber magnet of the present invention is described. In the present embodiment, the ferrite powder and the rubber material are agitated in a state where moisture is added, thereby improving magnetic properties (residual magnetic flux density B ^ ) without affecting the addition of moisture The molecular structure of the rubber material produced. However, the improvement in magnetic properties is because the added stress of water reduces the stress applied to the ferrite powder during the agitation. Moreover, since the additive is water, The ferrite powder of the oxide is also not problematic. However, the technical scope of the present invention is not limited to the above embodiments, and various modifications can be added without departing from the scope of the invention. In the case of using a ferrite powder, the present invention is not limited thereto, and the ground-based powder can be applied to the method for producing a rubber magnet of the present invention. The rare earth powder can be applied to an R-TM-B-based powder (R is a kind of a rare earth element) Or two or more types, TM is Fe, or Fe and C 〇), R - C lanthanide powder. Here, R is a mourning containing γ, from La, Ce, P, ·, Nd, Sm, One or more of Eu, Gd, D, D, Ho, Er, Yb, LU, and Y. Further, in order to improve the coercive force, let A1, CI·, η η, MG, S i, An element such as C u, C, N b, S η, W, V, Zi, Ti, Mo, Bi, Ag, and Ga may be used alone or in combination of two or more. R-Co powder is Containing more than one element selected from R, and F e, N i, from Μ η and C r , and C 〇. This - 2162515 (18) case, preferably further containing C u It is an element selected from N b, ι ι., T a, H f, T i and V, and particularly preferably contains C u , and from N b, Z r, T a, H f, T i And V-selected more than one type of element. Among them, in particular, an intermetallic compound of Sm and Co is preferably a Sm2C〇7 intermetallic compound as a main phase, and a SmC〇5 system exists at a grain boundary. In the case of the technical solution of the present invention in which the binder of the ferrite powder and the rubber material is added with water, the binder is also used in the case of using a resin such as an elastomer or a plastic. [Examples] Hereinafter, the present invention will be described in more detail by way of examples, but not limited thereto. [Examples] (Sample N 〇 . 1 to 5) - Using the raw materials shown in Fig. 3, the components shown in Fig. 4 were mixed and stirred by a blender to obtain a composition. However, the mixing ratio of the 'iron ^ ^ powder is shown to be 100% of the volume of the whole volume of the mixture & _, f l, i
。即，鐵酸鹽粉末含有率，是依據上述式（1 ) ( M 實施例也同樣）。 :隹 接著，藉由在模具周圍配置磁場線圈的壓出機’ ^/ 自勺濟 脫磁處理之後，由壓榨滾子的滾子壓延獲得均一 f g +曰 Φ 靡1土1 片（異方性橡膠磁鐵）。加壓攪和是]小時，必十 -22- 1262515 (19) 成形，是由磁場強度1 3 0 0 kA/m的條件進行。 對於所獲得的橡膠磁鐵，將定向度及殘留磁束密度， 使用最大外加磁場2 5 k 0 e的B - Η示蹤劑評價。其結果如 第4圖所示。 (比較例1〜7 ) 將各成分的調合比率變更成如第5圖以外，是與試料 No . 1〜5同樣地進行定向度及殘留磁束密度的評價。其結 果如第5圖。 如第4圖所示，鐵酸鹽量爲6 8 %以上，且可塑劑及滑 劑的使用比率爲本發明的推獎範圍內的情況時，可獲得 2 ό 5 m 丁以上白勺高殘留磁束密度。 〔實施例2〕 (試料 Ν 〇 . 6 〜1 4，1 9 ) 第 3圖所示的原材料在加上，準備7 >( 2 -氨基乙基 )氨基丙基三甲基硅烷作爲硅烷聯接劑，第6圖所示的調 合以外由與試料Ν 〇 . 1〜5同樣的條件製作橡膠磁鐵。 (試料 Ν 〇 . 1 5 ) 未添加聯接劑以外，是由與試料Ν 〇 . 6〜1 4、1 9同樣 的條件製作橡膠磁鐵。 (20) 1262515 聯接劑是使用非矽烷系以外，由試料Ν ο . 1〜5同樣的 條件製作橡膠磁鐵。然而，試料N 〇 . 1 6是使用味之素精技 公司製的「KRTTS」，試料 No.] 7是使用同公司製的「 A R - Μ」，試料Ν ο . ] 8是使用油酸。 對於試料N 〇 . 6〜1 9由與實施例1同樣的條件測量定 向度及殘留磁束密度。且，由以下的條件評價0 2 0彎曲 及硬度。其結果如第6圖所示。. That is, the ferrite powder content is based on the above formula (1) (the same applies to the M embodiment). : 隹 Next, after the demagnetization process of the magnetic field coil is arranged around the mold, the roller is rolled by the press roller to obtain a uniform fg + 曰 Φ 靡 1 soil (isotropy) Rubber magnet). The pressure mixing is [hours, must be -22- 1262515 (19) Forming, is carried out under the condition of a magnetic field strength of 1 3 0 0 kA/m. For the obtained rubber magnet, the orientation degree and the residual magnetic flux density were evaluated using a B - Η tracer having a maximum applied magnetic field of 2 5 k 0 e. The result is shown in Figure 4. (Comparative Examples 1 to 7) The blending ratio of each component was changed to the evaluation of the orientation degree and the residual magnetic flux density in the same manner as in the samples Nos. 1 to 5 except for the fifth graph. The result is shown in Figure 5. As shown in Fig. 4, when the amount of ferrite is more than 68%, and the use ratio of the plasticizer and the slip agent is within the range of the prize of the present invention, a high residue of 2 ό 5 m or more can be obtained. Magnetic beam density. [Example 2] (Sample Ν 〇. 6 to 1 4, 1 9 ) The raw material shown in Fig. 3 was added, and 7 > (2-aminoethyl)aminopropyltrimethylsilane was prepared as a silane linkage. A rubber magnet was produced under the same conditions as those of the samples Ν 1. 1 to 5 except for the blending shown in Fig. 6 . (Sample Ν 〇 . 1 5 ) A rubber magnet was produced under the same conditions as the sample Ν 〇 6 to 1 4, 19 except that no coupling agent was added. (20) 1262515 A rubber magnet was produced under the same conditions as those of the sample Ν ο. 1 to 5 except that the coupling agent was used. However, the sample N 〇 . 16 is a "KRTTS" manufactured by Ajinomoto Co., Ltd., and the sample No. 7 is a "A R - Μ" manufactured by the company, and the sample Ν ο . With respect to the sample N 〇 . 6 to 19 , the orientation and the residual magnetic flux density were measured under the same conditions as in the first embodiment. Further, 0 0 0 bending and hardness were evaluated by the following conditions. The result is shown in Fig. 6.
0 20彎曲：在直徑 20mm的圓柱將試料（厚度 2。2 m m、寬 3 0 m m )由手捲附目視觀察試料的龜裂的有無 。無發生龜裂的情況爲〇，發生龜裂的情況爲X。 硬度（肖爾D硬度）：依據JISB 7 72 7測量。 從試料No. 15及試料No.6〜14的比較，藉由添加矽 烷系聯接劑，可知硬度提高。但是，其添加量是 5.0 wt % (試料Ν 〇，1 9 )時，可撓性下降。0 20 Bending: The sample (thickness of 2. 2 m m and width of 30 m) was placed in a cylinder of 20 mm in diameter by visual observation of the presence or absence of cracks in the sample. The case where no crack occurs is 〇, and the case where crack occurs is X. Hardness (Shore D hardness): Measured in accordance with JIS B 7 72 7. From the comparison of sample No. 15 and sample Nos. 6 to 14, by adding a decane-based coupling agent, it was found that the hardness was improved. However, when the amount added was 5.0 wt% (sample Ν 〇, 19), the flexibility decreased.
且，從試料No . 1 5及試料No . 1 6〜]8的比較，添加非 矽烷系聯接劑的情況時，可知無法獲得硬度提高的效果。 〔實施例3〕 使用第3圖所示的原材料，依據第1圖所示的流程圖 製作薄片狀的橡膠磁鐵。 首先，在攪和過程 S 1，將橡膠材（丁腈橡膠（NBR ))、可塑劑、滑劑、架橋劑、架橋助劑、鐵酸鹽粉末、 水的添加率（水添加量），由如第7圖所示的調合比率混 合。此時，將水的添加率，在鐵酸鹽粉末在對於重量百分 -24 - 1262515 (21) 率以〇〜5 w t %的範圍階段地改變的複數設定進行攪和處理 〇 將由這些的各定向比率進行攪和過程S ]者，由同條 件進行最終製品的橡膠磁鐵，並在這些的橡膠磁鐵，對於 殘留磁束密度B】·、彎曲性、肖爾D硬度進行評價。然而 ，在第7圖，上述攪和過程S 1所需要的攪和時間（成爲 預定粘度爲止的攪和時間）及成形過程S 3的模具溫度（ 成形溫度）也合併揭不。 由殘留磁束密度B r及肯爾D硬度的評價是由上述的 方法進行。彎曲性，是將厚度2.2 mm、寬3 Omm的試料直 徑捲成0不同的圓柱由目視觀察。此時，不會發生龜裂的 圓柱的最小直徑爲最小彎曲徑，其値如第7圖所示。 從此第7圖可知，水的添加率W d是〇 · 1 wt %的情況（ 例7 )，與未添加水的情況（例6 )相比，殘留磁束密度 Br只稍微提高，但是水的添加率Wd超過0.1 wt。/。的話， 獲得2 7 0 m T以上，進一步2 7 4 m 丁以上的殘留磁束密度B r (例8〜]2 )。且，在這些中，彎曲性及肖爾D硬度也可 獲得良好的値。然而，肖爾D硬度，橡膠磁鐵是要求30 以上。且，水的添加率w d是2 · 0 w t °/〇的情況（例1 2 )時 ，攪和時間會長至】20nnn。 然而，即使無水的添加的情況，如第7圖所示，充分 地添加可塑劑的情況（例1 )，或模具溫度（成形溫度） 改變的情況（例2〜6 )時，雖可以提高磁性特性（殘留 磁束密度B r )，但是無法獲得如添加水的情況的顯著的 ^25- 1262515 (22) 提高效果。 如第7圖所示，藉由添加水進行攪和處理，就可獲得 兼備高磁性特性及橡膠特有的彎曲性的橡膠磁鐵。 〔實施例4〕 準備聯接劑（有機矽烷偶合劑），由如第8圖所示的 調合比率混合各原料以外，由與實施例3同樣的條件製作 橡膠磁鐵。 聯接劑的添加方法，是如以下。 例A :將聯接劑的原液由噴漆法噴霧添加。 例B :將由水稀釋至7 5 wt %的聯接劑通常添加。 例C :將由水稀釋至7 5 wt%的聯接劑噴霧添加。 例D :將由水稀釋至50wt%的聯接劑通常添加。 例E :將由水稀釋至3 3 wt %的聯接劑通常添加。 例F :將由水稀釋至25 wt%的聯接劑通常添加。 例G :將由水稀釋至25 wt%的聯接劑噴霧添加。 例Η :將由水稀釋至]Owt%的聯接劑通常添加。 例I :將聯接劑直接原液通常添加。 然而，聯接劑的調合比率，是對於鐵酸鹽粉末的重量 百分率。且，上述通常添加，是將放入容器的聯接劑（溶 液）直接流入加壓攪和機的情況。 將由各定向比率進行攪和過程S ]者，由同條件形成 最終製品的橡膠磁鐵，在這些的橡膠磁鐵’對於殘留磁束 密度Br、彎曲性、肖爾D硬度、凝集的有無進行評價。 -26 - 1262515 (23) 其結果如第8圖所示。然而，殘留磁束密度B】、弓曲I生 、肯爾D硬度的評價方法是與實施例3同一。 從此第8圖可知，通常添加原液的聯接劑的情況（例 ])時，會產生凝集，但將聯接劑充分地稀釋的情況時’ 通常添加及噴霧添加的任一皆不會產生凝集（例D〜H ) 。然而，將聯接劑稀釋至75 wt %通常添加的情況（例B ) 時，凝集雖減少，稀釋的效果雖可見，但一部分仍會凝集 。但是，將聯接劑稀釋至7 5 wt %噴霧添加的情況（例C ) 時，不會產生凝集。進一步，將原液的聯接劑噴霧添加的 情況（例A )，也不會產生凝集。 如此，5 0 w t %以下被充分稀釋的聯接劑的情況時，通 常添加及噴霧添加的任一皆可獲得充分的凝集抑制效果。 且，原液或7〇wt%的稀釋少的聯接劑的情況時，可藉由噴 霧添加，獲得充分的凝集抑制效果。 而且，添加稀釋的聯接劑的情況，相比於原液聯接劑 的通常添加，皆可提高殘留磁束密度 B】.，獲得超過 27〇mT的殘留磁束密度Βι·。且，這些，是皆可獲得被良 好的彎曲性。然而，宵爾D硬度，橡膠磁鐵是蘗 次*水3 0以 上。因此，從此基準，除了稀釋程度最高的例Η，& 1 ^ 皆可狻 得被良好的肖爾D硬度。 〔實施例5〕 使用第3圖所示的原料，由以下的比率調含 Q <後，由 加壓攪和機攪和1時間而獲得組成物。 -21 ^ 1262515 (24) (調合比率） 將可塑劑對於NBR] 0G重量部23重量部調合。將滑 劑對於N B R 1 0 0重量部]4重量部調合。鐵酸鹽粉末裹將 S r .鐵酸鹽（平均粒徑：].3 m，壓粉密度：3 · 5 M g / m 3〉 ，如本文中所定義的鐵酸鹽量7 Ο V ο 1 %調合。將聯接劑對 於鐵酸鹽粉末（K2wt%調合。將架橋齊U NBR100對於蔞| 部1 . 6重量部調合。將架橋助劑，對於n B R 1 0 〇重量部8 重量部調合。 粉碎所獲得的組成物，使用此粉碎粉末由與實施例i 同一的條件進行磁場中壓出成形、脫磁處理之後，由_ # 滾子進行滾子壓延成均一厚度的磁性薄片（橡膠磁鐵）。 壓延時，對於試料No.2〇是由1 5 °C進行壓延，對於試料 N 〇 .2 1〜2 3是壓延預定的加熱狀態下的磁性薄片。試料 Ν ο :2 1〜2 3的壓延時的磁性薄片的溫度各別爲3 0 °C、5 〇 、7 〇 °C。然而，在第9圖，是顯示壓延時的磁性薄片的硬 度。 且滾子壓延是由2段進行，]段的壓延是將摩度 2.4 m m的磁性壓延至2 . 1 m m爲止，第2段的壓延是將磁 性薄片平坦化。 壓延後，施加由]6 5 °C保持]〇分的架橋處理。架橋 後的磁性薄片的厚度是2.2mm。 架橋處理後，由以下的條件測量保磁力（H cJ )、殘 留磁束密度（BI·)、可撓性及硬度。其結果與第9圖合倂 顯示。且，壓延時的溫度及保磁力（H c ·τ )的關係如第]0 -28- 1262515 (25) 圖所示。 如第9圖及第]〇圖所示’藉由壓延加熱至預定 的磁性薄片，與壓延常溫的磁性薄片的情況相比可知 力可提高。在此，第9圖所示的壓延時的薄片硬度’ No.20最高，依序顯示試料No_2]、22、23的低値。 面，試料N 〇 . 2 0的保磁力最低’依序顯示試料N 〇 . 2 ] 、2 3的高値。從以上的結果，試料N 0 · 2 1〜2 3是因 時的薄片硬度低所以壓延時附與於磁性粉末的應力會 ，其結果，可以獲得高保磁力。 且，如對於「架橋後的薄片的評價」處所示’在 狀態的壓延，對於殘留磁束密度（B 〇 、可撓性、硬 不良影響。 【圖式簡單說明】 第1圖，是顯示本發明的橡膠磁鐵的製造方法的 的流程圖。 第2圖’是本發明的橡膠磁鐵的製造線的一例的 圖。 第3圖’是顯示實施例所使用的原材料的圖表。 第4圖’是顯示實施例](試料No · 1〜5 )的各 的g周合比半及所獲得的橡膠磁鐵的磁性特性的圖表。 第5圖’是顯示實施例I (比較例1〜7 )的各成 S周合比Φ及所獲得的橡膠磁鐵的磁性特性的圖表。 弟6 @ ’是實施例2的各成分的調合比率及所獲 溫度 保磁 試料 一方 、22 壓延 減輕 加熱 度無 一例 模式 成分 分的 得的 -29- 1262515 (26) 橡膠磁鐵的磁性特性的圖表。 第7圖，是顯示實施例3所獲得的橡膠磁鐵的磁性特 1生的圖表。 第8圖，是顯示實施例4所獲得的橡膠磁鐵的磁性特 性的圖表。 第9圖，是顯示實施例4所獲得的橡膠磁鐵的磁性特 性> 的圖表。 第1 〇圖，是顯示壓延時的溫度及保磁力（HcJ )的關 係的圖表。 【主要元件符號說明】 1 :成形部 2 :壓延部 3 :壓延機 4 架橋處理部Further, when the non-decane-based coupling agent was added in comparison with the sample No. 15 and the sample No. 16 to 8 , it was found that the effect of improving the hardness could not be obtained. [Example 3] Using the raw material shown in Fig. 3, a sheet-shaped rubber magnet was produced in accordance with the flow chart shown in Fig. 1. First, in the stirring process S 1, the rubber material (nitrile rubber (NBR)), plasticizer, slip agent, bridging agent, bridging aid, ferrite powder, water addition rate (water addition amount), such as The blending ratio shown in Figure 7 is mixed. At this time, the addition rate of water is subjected to a kneading treatment at a complex setting in which the ferrite powder is changed stepwise in a range of 〇 to 5 wt% for a weight percentage of -24 to 6252515 (21). When the ratio was subjected to the stirring process S, the rubber magnet of the final product was subjected to the same conditions, and the residual magnetic flux density B, the bending property, and the Shore D hardness were evaluated for these rubber magnets. However, in Fig. 7, the stirring time (the stirring time until the predetermined viscosity) required for the above-mentioned stirring process S1 and the mold temperature (forming temperature) of the forming process S3 are also combined. The evaluation of the residual magnetic flux density B r and the Ken D hardness was carried out by the above method. The bendability was observed by visually observing a cylinder having a thickness of 2.2 mm and a width of 3 Omm which was wound into 0 different cylinders. At this time, the smallest diameter of the cylinder in which cracking does not occur is the minimum bending diameter, as shown in Fig. 7. From the seventh graph, it can be seen that the water addition rate W d is 〇·1 wt% (Example 7), and the residual magnetic flux density Br is slightly increased compared with the case where no water is added (Example 6), but the addition of water is increased. The rate Wd exceeds 0.1 wt. /. In this case, a residual magnetic flux density B r (Example 8 to ] 2 ) of 2 700 m T or more and further 2 7 4 m D or more is obtained. Moreover, among these, good flexibility can also be obtained by the bendability and the Shore D hardness. However, the Shore D hardness and the rubber magnet are required to be 30 or more. Further, when the water addition rate w d is 2 · 0 w t ° / 〇 (Example 1 2 ), the stirring time is as long as 20 nnn. However, even in the case of anhydrous addition, as shown in Fig. 7, when the plasticizer is sufficiently added (Example 1), or when the mold temperature (forming temperature) is changed (Examples 2 to 6), the magnetic properties can be improved. Characteristics (residual magnetic flux density B r ), but significant improvement in the case of adding water, such as ^25-1262515 (22), is not obtained. As shown in Fig. 7, by adding water to the agitating treatment, a rubber magnet having both high magnetic properties and rubber-specific bending properties can be obtained. [Example 4] A rubber magnet was produced under the same conditions as in Example 3 except that a coupling agent (organic decane coupling agent) was prepared, and each raw material was mixed at a mixing ratio as shown in Fig. 8. The method of adding the coupling agent is as follows. Example A: The stock solution of the coupling agent was sprayed by spray coating. Example B: A coupling agent which was diluted with water to 75 wt% was usually added. Example C: A coupling agent spray diluted with water to 75 wt% was added. Example D: A coupling agent that is diluted from water to 50% by weight is usually added. Example E: A coupling agent diluted from water to 33% by weight is usually added. Example F: A coupling agent that is diluted from water to 25 wt% is usually added. Example G: A coupling agent spray diluted with water to 25 wt% was added. Example: A coupling agent that is diluted from water to >Owt% is usually added. Example I: A direct stock solution of the coupling agent is usually added. However, the blending ratio of the coupling agent is the weight percentage of the ferrite powder. Further, the above-mentioned usual addition is a case where the coupling agent (solution) placed in the container is directly flowed into the pressurizing agitator. The rubber magnets in which the final product was formed under the same conditions were subjected to the agitation process S], and the presence or absence of the residual magnetic flux density Br, the flexibility, the Shore D hardness, and the aggregation of the rubber magnets was evaluated. -26 - 1262515 (23) The result is shown in Figure 8. However, the evaluation methods of the residual magnetic flux density B], the bowing I, and the Ken D hardness were the same as in the third embodiment. As can be seen from Fig. 8, when a coupling agent of a stock solution is usually added (example), aggregation occurs, but when the coupling agent is sufficiently diluted, 'any of the addition and the addition of the spray do not cause aggregation. D~H). However, when the coupling agent is diluted to 75 wt% (Fig. B), although the agglutination is reduced, the effect of the dilution is visible, but some of them still aggregate. However, when the coupling agent was diluted to 75 wt% of the spray addition (Example C), no agglomeration occurred. Further, in the case where the coupling agent of the stock solution was sprayed (Example A), aggregation did not occur. Thus, in the case of a sufficiently diluted binder at 50 w t % or less, a sufficient aggregation suppressing effect can be obtained by any of the usual addition and the spray addition. Further, in the case of a stock solution or a binder having a small dilution of 7% by weight, a sufficient aggregation suppressing effect can be obtained by spray addition. Further, in the case where a diluted coupling agent is added, the residual magnetic flux density can be increased as compared with the usual addition of the raw liquid coupling agent, and a residual magnetic flux density of more than 27 〇 mT is obtained. Moreover, these are all excellent bendability. However, the D hardness of the rubber is 蘖 times * water more than 30. Therefore, from this benchmark, in addition to the most diluted example, & 1 ^ can be obtained with a good Shore D hardness. [Example 5] Using the raw material shown in Fig. 3, Q < was blended in the following ratio; and then the mixture was stirred by a pressure agitator for 1 time to obtain a composition. -21 ^ 1262515 (24) ( blending ratio) The plasticizer was blended for the weight of 23 parts of the NBR] 0G weight. The lubricant was blended for 4 parts by weight of N B R 1 0 0 part. The ferrite powder is coated with S r. ferrite (average particle size: ] 3 m, powder density: 3 · 5 M g / m 3 > , as defined herein, the amount of ferrite is 7 Ο V ο 1% blending. The coupling agent is blended with ferrite powder (K2wt%. The bridge will be U NBR100 for 蒌| 1.6 parts of the weight. The bridging aid will be blended for the weight of the n BR 1 0 〇 weight 8 The obtained composition was pulverized, and the pulverized powder was subjected to magnetic field extrusion molding and demagnetization treatment under the same conditions as in Example i, and then rolled by a _# roller to a uniform thickness of the magnetic sheet (rubber magnet) The pressure is delayed, and the sample No. 2 is rolled at 15 ° C, and the sample N 〇. 2 1 to 2 3 is a magnetic sheet in a predetermined heating state after rolling. Sample Ν ο : 2 1 to 2 3 The temperature of the time-delayed magnetic sheets is 30 ° C, 5 〇, 7 〇 ° C. However, in Fig. 9, the hardness of the magnetic sheet showing the pressure delay is performed, and the roller rolling is performed by two stages. , the section of the rolling is to magnetically 2.4 mm magnetic friction to 2. 1 mm, the second section of the calender is to flatten the magnetic sheet After the calendering, the bridging treatment was carried out by the retention of 6 5 ° C. The thickness of the magnetic sheet after the bridging was 2.2 mm. After the bridging treatment, the coercive force (H cJ ) and the residual magnetic flux density were measured by the following conditions. (BI·), flexibility and hardness. The results are shown in conjunction with Fig. 9. Moreover, the relationship between the temperature of the pressure delay and the coercive force (H c ·τ ) is as shown in the figure] 0 -28-1262515 (25) As shown in Fig. 9 and Fig. 〇, 'heating to a predetermined magnetic sheet by calendering can increase the force compared with the case of rolling a magnetic sheet at room temperature. Here, the calender shown in Fig. 9 When the sheet hardness 'No.20 is the highest, the sample No. 2, 22, and 23 are displayed in sequence. The surface of the sample N 〇. 2 0 has the lowest coercive force. The sample N 〇. 2 ] and 2 3 are sequentially displayed. From the above results, the sample N 0 · 2 1 to 2 3 is such that the sheet hardness at the time is low, so that the stress is attached to the magnetic powder, and as a result, a high coercive force can be obtained. The evaluation of the sheet" shows the rolling in the state, for the residual magnetic flux density (B 〇, flexible [Brief Description of the Drawings] Fig. 1 is a flow chart showing a method of manufacturing the rubber magnet of the present invention. Fig. 2 is a view showing an example of a manufacturing line of the rubber magnet of the present invention. Fig. 4 is a graph showing the raw materials used in the examples. Fig. 4 is a graph showing the magnetic properties of the obtained rubber composite magnets in the examples of the examples (samples Nos. 1 to 5). Fig. 5 is a graph showing the magnetic properties of each of the S forming ratios Φ and the obtained rubber magnets of Example I (Comparative Examples 1 to 7).弟6 @ ' is a graph of the magnetic properties of the rubber magnets of the rubber magnets in the blending ratio of each component of the second embodiment and the temperature-preserving sample of the obtained temperature, and the reduction of the degree of heating by 22. . Fig. 7 is a graph showing the magnetic characteristics of the rubber magnet obtained in Example 3. Fig. 8 is a graph showing the magnetic characteristics of the rubber magnet obtained in Example 4. Fig. 9 is a graph showing the magnetic properties of the rubber magnet obtained in Example 4. The first diagram is a graph showing the relationship between the temperature of the pressure delay and the coercive force (HcJ). [Description of main component symbols] 1 : Forming section 2 : Calendering section 3 : Calender 4 Bridge processing section