JPH0474A - Manufacture of seal body for sealing magnetic fluid - Google Patents
Manufacture of seal body for sealing magnetic fluidInfo
- Publication number
- JPH0474A JPH0474A JP2101162A JP10116290A JPH0474A JP H0474 A JPH0474 A JP H0474A JP 2101162 A JP2101162 A JP 2101162A JP 10116290 A JP10116290 A JP 10116290A JP H0474 A JPH0474 A JP H0474A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic material
- seal
- hard magnetic
- seal body
- manufacture
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 239000011553 magnetic fluid Substances 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 title description 11
- 239000000696 magnetic material Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000003566 sealing material Substances 0.000 claims description 12
- 230000005415 magnetization Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000006386 memory function Effects 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 12
- 239000002994 raw material Substances 0.000 abstract 3
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は磁性流体シール用シール体の製造方法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of manufacturing a seal body for a magnetic fluid seal.
（従来の技術及びその問題点）
従来の磁性流体シール用のシール体を、第４図に示すが
、これは一対のステンレス製の環状ポールピース５１、
５１間に環状マグネット５２を配置し、これらを接着剤
５３、５３でもって接着することによって構成されてい
る。(Prior art and its problems) A conventional seal body for magnetic fluid seal is shown in FIG. 4, which consists of a pair of stainless steel annular pole pieces 51,
An annular magnet 52 is arranged between 51 and these are bonded together with adhesive 53, 53.
ところで上記構成のシール体では、接着剤５３とステン
レス製のポールピース５１、５１との密着性や、接着剤
５３と磁性流体との相容性を充分に配慮した上で、使用
する接着剤５３を選定しなければならず、そのためのこ
の選定作業に多くの手数を要するという欠点がある。し
かも接着剤５３を使用した接着作業にも多くの手数を要
するという欠点がある。By the way, in the seal body having the above structure, the adhesive 53 to be used must be selected after giving due consideration to the adhesion between the adhesive 53 and the stainless steel pole pieces 51, 51, and the compatibility between the adhesive 53 and the magnetic fluid. The disadvantage is that this selection process requires a lot of effort. Moreover, there is a drawback in that the bonding work using the adhesive 53 also requires a lot of work.
この発明は上記従来の欠点を解決するためになされたも
のであって、その目的は、製造に要する手数を大幅に低
減し、そのため高能率にシール体を製造することが可能
な磁性流体シール用シール体の製造方法を提供すること
にある。This invention was made in order to solve the above-mentioned conventional drawbacks, and its purpose is to significantly reduce the number of steps required for manufacturing, and therefore to manufacture a magnetic fluid seal with high efficiency. An object of the present invention is to provide a method for manufacturing a seal body.
（課題を解決するための手段）
そこで第１請求項記載の磁性流体シール用シール体の製
造方法では、軟磁性材料間に硬磁性材料を介設し、これ
らを溶融接着してシール素材を形成し、このシール素材
に形状加工及び着磁処理を施すことを特徴としている。(Means for Solving the Problem) Therefore, in the method for manufacturing a seal body for a magnetic fluid seal according to the first claim, a hard magnetic material is interposed between soft magnetic materials, and these are melted and bonded to form a sealing material. The seal material is characterized by being subjected to shape processing and magnetization processing.
また第２請求項記載の磁性流体シール用シール体の製造
方法では、上記硬磁性材料は形状記憶機能を有し、熱処
理等によって当該硬磁性材料を収縮変形させることを特
徴としている。The method for manufacturing a magnetic fluid sealing body according to the second aspect is characterized in that the hard magnetic material has a shape memory function, and the hard magnetic material is contracted and deformed by heat treatment or the like.
（作用）
上記第１請求項記載の磁性流体シール用シール体の製造
方法では、接着剤を使用せず、既に溶融接着されたシー
ル素材からシール体を製造するようにしであるので、従
来よりも高能率にシール体を製造することが可能である
。なお第１請求項記載の磁性流体シール用シール体の製
造方法においては、形状加工と着磁処理とは、いずれを
先に行ってもよい。(Function) The method for manufacturing a magnetic fluid sealing body according to the first aspect does not use an adhesive, and the sealing body is manufactured from a sealing material that has already been melt-bonded. It is possible to manufacture the seal body with high efficiency. In the method for manufacturing a magnetic fluid sealing body according to the first aspect, either the shape processing or the magnetization process may be performed first.
また第２請求項記載の磁性流体シール用シール体の製造
方法では、硬磁性材料、つまり着磁後にマグネットとな
る部分が、熱処理等によって収縮変形し、これにより軟
磁性材料、つまりポールピースよりも凹入した状態にな
ることから、従来と略同形状のシール体を、さらに高能
率に製造し得ることになる。Further, in the method for manufacturing a magnetic fluid sealing body according to the second aspect, the hard magnetic material, that is, the part that becomes a magnet after magnetization, is contracted and deformed by heat treatment, etc. Since the seal body is in a recessed state, a seal body having approximately the same shape as the conventional seal body can be manufactured with higher efficiency.
（実施例）
次にこの発明の磁性流体シール用シール体の製造方法の
具体的な実施例について、図面を参照しつつ詳細に説明
する。(Example) Next, a specific example of the method for manufacturing a seal body for a magnetic fluid seal according to the present invention will be described in detail with reference to the drawings.
第２図において、１はシール素材を示しているが、この
シール素材１は、一対のステンレス類（又は軟調製）の
軟磁性材料シート２．２間に、金属製又は樹脂性の硬磁
性材料３を介設し、これらを溶融接着することによって
構成する。この硬磁性材料３は、さらに形状記憶特性を
具備し、特定温度以下では収縮した形態をとり得るよう
になっている。In Fig. 2, 1 indicates a sealing material, and this sealing material 1 is made of a hard magnetic material made of metal or resin between a pair of soft magnetic material sheets 2 and 2 made of stainless steel (or soft preparation). 3 are interposed and are constructed by melt-bonding these. This hard magnetic material 3 further has a shape memory property and can assume a contracted form below a certain temperature.
上記のようなシール素材１を環状に打抜くと、硬磁性材
料３の収縮形態に起因して、第１図に示すような形状の
ものが得られる。つまり硬磁性材料３の内周部が、軟磁
性材料２．２の内周部よりも凹入した状態となるのであ
る。そして次に、これらに着磁を施し、硬磁性材料３を
マグネ・ノドとすることにより、シール体を得る。なお
この際、軟磁性材料２．２は着磁されず、ポールピース
として機能することになる。When the seal material 1 as described above is punched into an annular shape, a shape as shown in FIG. 1 is obtained due to the contraction form of the hard magnetic material 3. In other words, the inner circumference of the hard magnetic material 3 is more recessed than the inner circumference of the soft magnetic material 2.2. Then, these are magnetized and the hard magnetic material 3 is used as a magnet nod to obtain a sealing body. Note that at this time, the soft magnetic material 2.2 is not magnetized and functions as a pole piece.
上記製造方法は、従来のように接着剤を使用する訳では
ないため、接着剤のポールピースとの密着性、接着剤と
磁性流体との相客性を考慮する必要がないのに加え、接
着工程を省略し得るので、高能率にシール体を製造する
ことが可能である。Since the above manufacturing method does not use adhesive as in conventional methods, there is no need to consider the adhesion of the adhesive to the pole piece or the compatibility between the adhesive and the magnetic fluid. Since the process can be omitted, it is possible to manufacture the seal body with high efficiency.
しかもマグネットの凹入した従来同様の形状のシール体
を、特別な加工を行わなくても製造可能であり、この点
においても高能率な製造が可能である。さらに上記製造
方法によれば、従来方法では製造し得なかった超薄型の
シール体を製作し得るという利点も生じる。Furthermore, it is possible to manufacture a seal body having the same shape as the conventional one with a magnet recessed therein without any special processing, and in this respect as well, highly efficient manufacturing is possible. Furthermore, the above manufacturing method has the advantage that it is possible to manufacture an ultra-thin seal body, which could not be manufactured using conventional methods.
第３図にはシール素材１１の変形例を示すが、これはシ
ール素材１１をプレート状ではなく、パイプ状に形成し
たものであって、この形状のシール素材１１を使用する
ことによっても、上記実施例と略同様にシール体を製造
可能である。なおこの場合、シール体としては、前記実
施例のような円板状のものではな（、筒状のものになる
。FIG. 3 shows a modified example of the sealing material 11, in which the sealing material 11 is formed not in a plate shape but in a pipe shape, and by using this shape of the sealing material 11, the above The seal body can be manufactured in substantially the same manner as in the example. In this case, the sealing body is not a disc-shaped one as in the previous embodiment (it is a cylindrical one).
以上にこの発明の磁性流体シール用シール体の製造方法
の具体的な実施例の説明をしたが、この発明方法は上記
実施例に限定されるものではなく、種々変更して実施す
ることが可能である。Although specific embodiments of the method for manufacturing a seal body for magnetic fluid seals of the present invention have been described above, the method of the present invention is not limited to the above embodiments, and can be implemented with various modifications. It is.
（発明の効果）
上記第１請求項記載の磁性流体シール用シール体の製造
方法では、接着剤を使用せず、既に溶融接着されたシー
ル素材からシール体を製造するようにしであるので、接
着剤の選定手数、及び接着工程に要する手数を低減でき
、そのため従来よりも高能率にシール体を製造すること
が可能である。(Effects of the Invention) In the method for manufacturing a sealing body for a magnetic fluid seal according to the first claim, since the sealing body is manufactured from a sealing material that has already been melted and bonded without using an adhesive, The number of steps required for selecting agents and the number of steps required for the bonding process can be reduced, and therefore it is possible to manufacture seal bodies with higher efficiency than in the past.
また第２請求項記載の磁性流体シール用シール体の製造
方法では、着磁後にマグネットとなる硬磁性材料が、熱
処理等によって収縮変形し、これにより軟磁性材料、つ
まりポールピースよりも凹入した状態になることから、
従来と略同形状のシール体を、さらに高能率に製造し得
ることになる。In addition, in the method for manufacturing a magnetic fluid sealing body according to the second claim, the hard magnetic material that becomes the magnet after magnetization is contracted and deformed by heat treatment, etc., and as a result, the soft magnetic material, that is, the pole piece, is recessed. Because of the condition,
A seal body having approximately the same shape as a conventional seal body can be manufactured with higher efficiency.
第１図はこの発明の磁性流体シール用シール体の製造方
法により製造されたシール体の一例を示す説明図、第２
図は上記において用いるシール素材の一例の説明図、第
３図はシール素材の変更例の説明図、第４図は従来例の
説明図である。
ｌ、１１・・・シール素材、２・・・軟磁性材料、３・
・・硬磁性材料。
特許出願人 日本フェロ−フルイデイクス株式会
社FIG. 1 is an explanatory diagram showing an example of a seal body manufactured by the method of manufacturing a seal body for magnetic fluid seal of the present invention, and FIG.
The figure is an explanatory diagram of an example of the sealing material used in the above, FIG. 3 is an explanatory diagram of a modified example of the sealing material, and FIG. 4 is an explanatory diagram of a conventional example. l, 11... Seal material, 2... Soft magnetic material, 3.
...Hard magnetic material. Patent applicant Nippon Ferrofluidics Co., Ltd.
Claims (1)
接着してシール素材を形成し、このシール素材に形状加
工及び着磁処理を施すことを特徴とする磁性流体シール
用シール体の製造方法。 ２、上記硬磁性材料は形状記憶機能を有し、熱処理等に
よって当該硬磁性材料を収縮変形させることを特徴とす
る第１請求項記載の磁性流体シール用シール体の製造方
法。[Claims] 1. A hard magnetic material is interposed between soft magnetic materials, these are melted and bonded to form a sealing material, and this sealing material is subjected to shape processing and magnetization processing. A method for manufacturing a seal body for a magnetic fluid seal. 2. The method of manufacturing a seal body for a magnetic fluid seal according to claim 1, wherein the hard magnetic material has a shape memory function, and the hard magnetic material is contracted and deformed by heat treatment or the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2101162A JPH0474A (en) | 1990-04-17 | 1990-04-17 | Manufacture of seal body for sealing magnetic fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2101162A JPH0474A (en) | 1990-04-17 | 1990-04-17 | Manufacture of seal body for sealing magnetic fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0474A true JPH0474A (en) | 1992-01-06 |
Family
ID=14293349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2101162A Pending JPH0474A (en) | 1990-04-17 | 1990-04-17 | Manufacture of seal body for sealing magnetic fluid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0474A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5552426A (en) * | 1994-04-29 | 1996-09-03 | Eli Lilly And Company | Methods for treating a physiological disorder associated with β-amyloid peptide |
| US9608619B2 (en) | 2005-07-11 | 2017-03-28 | Peregrine Semiconductor Corporation | Method and apparatus improving gate oxide reliability by controlling accumulated charge |
| US9680416B2 (en) | 2004-06-23 | 2017-06-13 | Peregrine Semiconductor Corporation | Integrated RF front end with stacked transistor switch |
-
1990
- 1990-04-17 JP JP2101162A patent/JPH0474A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5552426A (en) * | 1994-04-29 | 1996-09-03 | Eli Lilly And Company | Methods for treating a physiological disorder associated with β-amyloid peptide |
| US9680416B2 (en) | 2004-06-23 | 2017-06-13 | Peregrine Semiconductor Corporation | Integrated RF front end with stacked transistor switch |
| US9608619B2 (en) | 2005-07-11 | 2017-03-28 | Peregrine Semiconductor Corporation | Method and apparatus improving gate oxide reliability by controlling accumulated charge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62214607A (en) | Manufacture of fixed core for electromagnet | |
| JPH0474A (en) | Manufacture of seal body for sealing magnetic fluid | |
| JPS59226768A (en) | Ferromagnetic fluid pole piece magnet device and manufacturethereof | |
| JPS59231271A (en) | Magnetic fluid sealing device | |
| JPS62221851A (en) | Manufacture of magneto motor yoke | |
| JPH04102770A (en) | Sealing member for sealing magnetic fluid | |
| JP2597618Y2 (en) | Magnetic fluid sealing device | |
| JPS6315826B2 (en) | ||
| JPH053115A (en) | Multipolar magnetized permanent magnet | |
| JP2941592B2 (en) | Oil seal and its manufacturing method | |
| KR900700804A (en) | Ferromagnetic fluid sealing member and its manufacturing method | |
| JPS6316419A (en) | Magnetic disk | |
| US3492443A (en) | Dust shield and pressure element for speaker magnet assembly | |
| JPH024099A (en) | Magnetic circuit for flat speaker | |
| JPH02186186A (en) | Magnetic sealing ring and piping method using the same | |
| JPS5924000A (en) | Electroacoustic transducer | |
| JPS60172775A (en) | Seal device for rotary shaft, utilizing magnetic fluid | |
| JPS62193540A (en) | Permanent magnet stator | |
| JPS60170433A (en) | Rotor for rotary electric machine | |
| JPH02120578A (en) | Sealing body for sealing magnetic fluid and its manufacture | |
| JPS5967609A (en) | Manufacture of anisotropic ferrite magnet | |
| JPS62298102A (en) | Manufacture of magnetic fluid sealing device | |
| JPS6111379B2 (en) | ||
| EP1470887A3 (en) | Method of joining together magnetic and nonmagnetic materials | |
| JPS58171294U (en) | magnetic filter |