JPH02206342A - Manufacture of rotor member - Google Patents

Manufacture of rotor member

Info

Publication number
JPH02206342A
JPH02206342A JP1023017A JP2301789A JPH02206342A JP H02206342 A JPH02206342 A JP H02206342A JP 1023017 A JP1023017 A JP 1023017A JP 2301789 A JP2301789 A JP 2301789A JP H02206342 A JPH02206342 A JP H02206342A
Authority
JP
Japan
Prior art keywords
magnet
shaft
temperature
epoxy resin
stage
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
Application number
JP1023017A
Other languages
Japanese (ja)
Inventor
Mitsuru Sakurai
充 桜井
Yukihiko Shiobara
幸彦 塩原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Publication of JPH02206342A publication Critical patent/JPH02206342A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C11/00Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/21Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/34Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
    • G11C11/40Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C29/00Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation

Abstract

PURPOSE:To improve the adhesive strength by inserting a shaft into a magnet, and heating and hardening epoxy resin to make the magnet and the shaft adhere to each other after immersing the magnet in epoxy resin and drying when the shaft adheres to the magnet. CONSTITUTION:Epoxy resin is generally hardened once in a temperature ranging from room temperature to about 80 deg.C, softening with the temperature-rise afterward, and when a temperature reaches 120-150 deg.C, a final hardening reaction occurs. Generally, the first hardening conditions are referred to 'stage B'. After immersing the magnet in epoxy resin, when 'stage B hardening conditions' are attained through a normal temperature drying or at a normal temperature, the magnet is treated under the same conditions as before the immersion. A shaft is inserted into the magnet, and when treated for 1-4 hours at 120-150 deg.C, the resin in stage B conditions in the process of rising temperature is once softened to enter a space between the inside diameter of the magnet and the shaft, and when a temperature rises furthermore, it is hardened at the next step, so that connection between the magnet and the shaft can be made.

Description

【発明の詳細な説明】 [産業上の利用分野コ 本発明はロータ体の製造方法に関する。[Detailed description of the invention] [Industrial application fields] The present invention relates to a method for manufacturing a rotor body.

[従来の技術] 磁石とシャフトからなるロータ体では磁石とシャフトを
接合する必要があるが従来は接着、かし[発明が解決し
ようとする課題] しかし、この作業は接着剤を付ける際に、接着剤の貴、
粘度、位置、シャフトの挿入速度等、多くの管理項目が
あり一見単純作業であり・ながらコストが高いという欠
点がある。
[Prior art] In a rotor body made up of magnets and a shaft, it is necessary to join the magnets and the shaft, but conventionally the magnets and the shaft have to be joined by adhesive or crimping.[Problem to be solved by the invention] However, when applying adhesive, this work Adhesive noble,
There are many control items such as viscosity, position, shaft insertion speed, etc., and although it seems to be a simple operation, it has the disadvantage of being expensive.

[課題を解決するための手段] 本発明は磁石にシャフトを接着する際に磁石をエポキシ
樹脂に浸せきさせ常温又は温風乾燥した後シャフトを磁
石に挿入し加熱してエポキシ樹脂を硬化させ接着を行う
ことを特徴とする。
[Means for Solving the Problems] The present invention, when adhering a shaft to a magnet, immerses the magnet in epoxy resin, dries it at room temperature or with hot air, and then inserts the shaft into the magnet and heats it to harden the epoxy resin and bond it. It is characterized by doing.

エポキシ樹脂の中には2段階の硬化過程を経るもの、が
ある。一般には室温から80℃位の範囲で一度硬化を行
いその後温度上昇とともに軟化し、更に温度が上がり1
20−150℃で最終的な硬化反応がおこる、普通、最
初の硬化状態をBステージと言う。
Some epoxy resins undergo a two-step curing process. Generally, it hardens once in the range from room temperature to about 80 degrees Celsius, then softens as the temperature rises, and then rises further to 1.
The initial curing state in which the final curing reaction occurs at 20-150°C is usually referred to as the B stage.

磁石をエポキシ樹脂の中に浸せきさせた後、常温乾燥又
は温風でBステージの硬化状態にすると磁石は取扱上浸
せき前と同じ状態になる。この磁石にシャフトを挿入し
て120−150℃で1−4時間処理すると、その昇温
過程でBステージになっていた樹脂が一旦軟化し磁石の
内径とシャフトの、隙間に入りさらに温度が上がること
によって次の段階で硬化するので磁石とシャフトの結合
が行われる。
After a magnet is immersed in epoxy resin, if it is brought to a B-stage hardening state by drying at room temperature or with warm air, the magnet will be in the same state as before immersion in terms of handling. When a shaft is inserted into this magnet and treated at 120-150℃ for 1-4 hours, the resin that was in the B stage softens and enters the gap between the inner diameter of the magnet and the shaft, further increasing the temperature. As a result, the next step is to harden the magnet and the shaft.

[実施例コ 以下に本発明について実施例をもとに詳細に説明する。[Example code] The present invention will be described in detail below based on examples.

(実施例1) 急冷薄帯法によって得られたNd−1?θ−Bの磁性粉
末及びSm−Coを主成分とした磁性粉末(平均粒径=
25μm、最大径=177μrIL)を用いて外、径6
順、内径2閣、厚み2.5mのリング磁石を作成した。
(Example 1) Nd-1 obtained by the quenched ribbon method θ-B magnetic powder and magnetic powder mainly composed of Sm-Co (average particle size =
25μm, maximum diameter = 177μrIL), outer diameter 6
A ring magnet with an inner diameter of 2 mm and a thickness of 2.5 m was created.

それぞれの磁石はエポキシ樹上を30%含むトリエタン
の溶液に浸せきさせ、室温で1時間乾燥した後シャフト
(外径1.98 rran :浸せき後の磁石内径とシ
ャフトの間のクリアランスがα005団位になるように
設計)を挿入したシャフト挿入後150℃で1時間キュ
アーしてエポキシ樹脂を硬化させたシャフトの接着を行
った。1個当りの接着にかかる時間の測定とともに各接
着品の接着強度(抜き力)を調べた。尚比較のために同
じエポキシ樹脂をシャフトに直接付け、磁石に挿入して
接着したものも作成した。
Each magnet was immersed in a solution of triethane containing 30% epoxy wood, dried at room temperature for 1 hour, and then the shaft (outer diameter 1.98 rran: the clearance between the inner diameter of the magnet and the shaft after immersion was α005 group). After inserting the shaft into which the epoxy resin was inserted, the shaft was cured at 150° C. for 1 hour to harden the epoxy resin, and the shaft was bonded. In addition to measuring the time required for bonding each piece, the adhesive strength (pulling force) of each bonded item was examined. For comparison, we also created a model in which the same epoxy resin was applied directly to the shaft, inserted into a magnet, and then glued.

接着に用した時間及び接着強度4を結果を第1表に示す
Table 1 shows the results of the adhesion time and adhesion strength 4.

第1表より従来法に較べ約1/2の時間で接着ができし
かも強度的には殆んど同等の物が得られることがわかる
From Table 1, it can be seen that adhesion can be achieved in about 1/2 the time compared to the conventional method, and a product with almost the same strength can be obtained.

第  1 表 また、シャフトを挿入して加熱するだけなので工程の機
械化も従来法にくらべ容易に行える。
Table 1 In addition, since the shaft is simply inserted and heated, the process can be mechanized more easily than conventional methods.

以上that's all

Claims (1)

【特許請求の範囲】[Claims] 磁石にシャフトを接着して作られるロータ体において磁
石をエポキシ樹脂に浸せきさせ常温又は温風乾燥した後
シャフトを磁石に挿入し加熱してエポキシ樹脂を硬化さ
せることによって磁石とシャフトの接着を行うことを特
徴としたロータ体の製造方法。
In a rotor body made by bonding a shaft to a magnet, the magnet and shaft are bonded by immersing the magnet in epoxy resin, drying it at room temperature or with hot air, then inserting the shaft into the magnet and heating it to harden the epoxy resin. A method for manufacturing a rotor body characterized by:
JP1023017A 1990-06-08 1989-02-01 Manufacture of rotor member Pending JPH02206342A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15132890 1990-06-08

Publications (1)

Publication Number Publication Date
JPH02206342A true JPH02206342A (en) 1990-08-16

Family

ID=15516203

Family Applications (2)

Application Number Title Priority Date Filing Date
JP1023017A Pending JPH02206342A (en) 1990-06-08 1989-02-01 Manufacture of rotor member
JP2230178A Expired - Lifetime JPH0752598B2 (en) 1990-06-08 1990-08-31 Semiconductor memory device

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2230178A Expired - Lifetime JPH0752598B2 (en) 1990-06-08 1990-08-31 Semiconductor memory device

Country Status (2)

Country Link
JP (2) JPH02206342A (en)
KR (1) KR950001127B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001178086A (en) * 1999-12-10 2001-06-29 Honda Motor Co Ltd Method and apparatus for manufacturing rotor
JP2015158201A (en) * 2014-02-21 2015-09-03 プファイファー・ヴァキューム・ゲーエムベーハー vacuum pump
JP2020524475A (en) * 2017-06-20 2020-08-13 ダイソン テクノロジー リミテッド Rotor assembly and manufacturing method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100496623B1 (en) * 1998-04-11 2005-09-02 주식회사 서울암면 Simultaneous Recycling System of Waste Sludge and Waste Gas on Landfill
KR100695437B1 (en) 2006-04-13 2007-03-16 주식회사 하이닉스반도체 Multi port memory device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001178086A (en) * 1999-12-10 2001-06-29 Honda Motor Co Ltd Method and apparatus for manufacturing rotor
JP2015158201A (en) * 2014-02-21 2015-09-03 プファイファー・ヴァキューム・ゲーエムベーハー vacuum pump
JP2020524475A (en) * 2017-06-20 2020-08-13 ダイソン テクノロジー リミテッド Rotor assembly and manufacturing method thereof

Also Published As

Publication number Publication date
KR950001127B1 (en) 1995-02-11
JPH0752598B2 (en) 1995-06-05
JPH04129087A (en) 1992-04-30
KR920001519A (en) 1992-01-30

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