JPS60184771A - Oil seal surface treating method - Google Patents

Oil seal surface treating method

Info

Publication number
JPS60184771A
JPS60184771A JP59037025A JP3702584A JPS60184771A JP S60184771 A JPS60184771 A JP S60184771A JP 59037025 A JP59037025 A JP 59037025A JP 3702584 A JP3702584 A JP 3702584A JP S60184771 A JPS60184771 A JP S60184771A
Authority
JP
Japan
Prior art keywords
oil seal
mask
lip
sputter etching
slits
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
JP59037025A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Kanzaki
勘崎 芳行
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.)
Nok Corp
Original Assignee
Nippon Oil Seal Industry Co Ltd
Nok 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 Nippon Oil Seal Industry Co Ltd, Nok Corp filed Critical Nippon Oil Seal Industry Co Ltd
Priority to JP59037025A priority Critical patent/JPS60184771A/en
Publication of JPS60184771A publication Critical patent/JPS60184771A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/16Sealings between relatively-moving surfaces
    • F16J15/32Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/328Manufacturing methods specially adapted for elastic sealings

Abstract

PURPOSE:To efficiently roughen the valcanized surface of a main lip by housing an oil seal mold lip molding in a mask made of a cylindrical hollow body, in which a number of slits are provided on the inner peripheral surface side, and carrying out a sputter etching treatment from the outside of said mask. CONSTITUTION:An oil seal mold lip molding 1 is covered by a mask made of a cylindrical stainless steel hollow container 2 and housed in it. The molding 1 is positioned in such a way that the valcanized surface 5 of the oil seal lip part is faced to a number of slit 4 provided on the inner peripheral surface 3 of the container 2. Accordingly, a high-frequency sputter etching is carried out collectively onto the main lip part through the group of slits, providing a uniform roughing structure on the valcanized surface.

Description

【発明の詳細な説明】 本発明は、オイルシールの表向処理方法に関する。史に
l’l’ L <は、初期シール性を改善せしめるオイ
ルシールの表面処理方法に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a surface treatment method for an oil seal. The present invention relates to a surface treatment method for oil seals that improves initial sealing performance.

新品のオイルシール葡実動に使用すると、指動時間の経
過と共に、シール性能が徐々に良好になってゆく現象が
認められる。これは、オイルシールの主リップ部が摺動
することにより、主リップ部全形成するゴムの加硫面が
一枚剥がれて、その面が祖化し、かえって摺動体となじ
んでくるためと考えられる。そして、モールドリップ成
形品は、リッグ先端メスカット成Jし品と比べて、特に
初期のシール性能が良くない。
When a new oil seal is used for actual operation, it is observed that the sealing performance gradually improves as time passes. This is thought to be because when the main lip of the oil seal slides, one piece of the vulcanized surface of the rubber that forms the entire main lip peels off, causing that surface to rust and become more familiar with the sliding body. . In addition, the mold lip molded product does not have particularly good initial sealing performance compared to a molded product with a rig tip scalpel cut.

こうした問題全解決するための一つの提案が、特公昭3
7−6755号公報に記載されている。この提案によれ
ば、オイルシール成形用金型の表面にショツトブラスト
あるいはバー力ライジングによる表面処理を施し、金型
表面に微細で均一な梨地状凹凸を形成させ、この金型を
用いることによりオイルシールの表面に粗化構造を形成
せしめている。しかしながら、このような金型を用いた
場合、加硫成形回数の増加と共に、ゴムが粗化構造を形
成させている微細な門凸部に入りこみ、目詰りを生せし
めるようになるので、常に金型表面に粗化構造を維持さ
せるための金型の管理が難かしくなってくるという欠点
がある。
One proposal to solve all of these problems was
It is described in Japanese Patent No. 7-6755. According to this proposal, the surface of the oil seal molding mold is subjected to surface treatment by shot blasting or bar force rising to form fine and uniform satin-like unevenness on the mold surface. A roughened structure is formed on the surface of the seal. However, when such a mold is used, as the number of vulcanization molding increases, the rubber enters the fine gate protrusions that form the roughened structure, causing clogging, so the mold is constantly A drawback is that it becomes difficult to manage the mold to maintain the roughened structure on the mold surface.

本発明者は、こうした事情を勘案し、オイルシ−ルの主
リップ部(モールドリップ部)の加硫面金粗(bぎせる
こと1倹討し、特定の処理方法を用いることにより、そ
7LLが効果的に行わILることを見出し/こ。
Taking these circumstances into consideration, the inventor of the present invention has studied the roughness of the vulcanized surface of the main lip (mold lip) of an oil seal, and by using a specific treatment method, Find out that IL can be done effectively.

従って、本発明は初期シール性を改善せしめるオイルシ
ールの表面処理方法に係り、オイルシールの表面処理は
、オイルシールモールドリップ成形品を内周面[1tl
に多数本のスリット盆芽設した円筒状中空体容器よりな
るマスク内に収容し、マスク外から高周波スパッタエツ
チング処理を施し、前記スリットに面する万イルシール
の主リップ部加(Dif、而を粗化させることにより行
われる。
Therefore, the present invention relates to a surface treatment method for an oil seal that improves the initial sealing performance.
The seal is housed in a mask consisting of a cylindrical hollow container with a large number of slit trays, and is subjected to high-frequency sputter etching treatment from outside the mask. This is done by making the

l′AUNの第1図は、マスク内にオイルシールモール
ドリップ成形品を収容した状feA ’e示づ一半裁断
面図である。即ち、オイルシールモールドリップ成形品
1a4、ステンレススチール製、アルミニウム合金製な
どの円筒状中空体容器2よりなるマスクをかぶせること
によりその中に収容され、この円筒状中空体容器の内周
面3に多数本穿設されているスリット4.4′、4〃、
・・・・・・にオイルシールの主リップ部加硫面5が面
するように位置させる。上記容器の内周面に穿設される
スリットは、例えば容器の内周面の半径が15M、高さ
が6胴の場合、3 X 110−21Kのスリット幅を
有するものが1500本程度設けられる。これ以外に、
スリットの位置、形状、大きさ、向き、本数などは、任
息に選択することができる。
FIG. 1 of l'AUN is a sectional view showing a state in which an oil seal mold lip molded product is accommodated in a mask. That is, the oil seal mold lip molded product 1a4 is housed in a mask made of a cylindrical hollow container 2 made of stainless steel, aluminum alloy, etc., and is housed in the inner peripheral surface 3 of the cylindrical hollow container. A large number of slits 4.4', 4〃,
. . . Position the main lip portion of the oil seal so that the vulcanized surface 5 faces the oil seal. For example, if the inner circumferential surface of the container has a radius of 15M and a height of 6 cylinders, approximately 1,500 slits with a slit width of 3 x 110-21K will be provided on the inner circumferential surface of the container. . Besides this,
The position, shape, size, direction, number, etc. of the slits can be arbitrarily selected.

第2図は、かかるマスク内に収容されたオイルシールモ
ールドリップ成形品の高周波スパッタエツチング装置の
概要を示すものであり、高周波スパッタエツチング処理
は次のようにして行われる。
FIG. 2 shows an outline of a high frequency sputter etching apparatus for an oil seal mold lip molded product housed in such a mask, and the high frequency sputter etching process is carried out as follows.

(1)反応器10内に、被処理物たるオイルシールモー
ルドリップ成形品1を収容り、 *マスク2を、上部電
f!110対向位1uに設;Rされた下部電イ為12上
に搭載する。なお、これらの各百1.極は、冷却水の循
環19.19’により適宜冷却されている。
(1) The oil seal mold lip molded product 1, which is the object to be treated, is placed in the reactor 10, and the mask 2 is attached to the upper electrode f! 110 is installed at the opposite position 1u; the lower electric wire is rounded so it is mounted on 12. In addition, each of these 100 1. The poles are suitably cooled by cooling water circulation 19,19'.

(2)油拡散ポンプなどの真空ポンプ(図示せず)を用
いて、反応器内の空気を排気油13から排気して10−
’ Torr以下に減圧する。
(2) Using a vacuum pump (not shown) such as an oil diffusion pump, exhaust the air in the reactor from the exhaust oil 13 to 10-
' Reduce the pressure to below Torr.

(3)次いで、バリアプルバルブ14を調節LAがらス
トップバルブ15を開けて、アルゴンなどの不活性ガス
のボンベ16からのアルゴンガスなどを反応器内に導入
し、そこでの圧力を10− ’ Torrのオーダーと
する。
(3) Next, adjust the barrier pull valve 14 LA and open the stop valve 15 to introduce argon gas or the like from the cylinder 16 of an inert gas such as argon into the reactor, and reduce the pressure there to 10-' Torr. The order shall be .

(4)高周波’uLII)A (13,56M)1z)
 17およびマツチングボックス(?「力i1’) i
sから高周波数′晟を発振さ刊、発振L fc、高周波
放電な、1マスク2のスリット群4.4′、4〃、・曲
・を通過し”c1オイルシールの主リップ部5の加硫面
の高周波スパッタエツチングを行なう。
(4) High frequency 'uLII)A (13,56M)1z)
17 and matching box (?"force i1') i
A high frequency discharge is oscillated from s, oscillation L fc, high frequency discharge, passes through the slit group 4, 4, 4 of mask 2, and applies the main lip portion 5 of c1 oil seal. Perform high frequency sputter etching on the sulfur surface.

(5)この主リップ部の加硫面が所定の深さに粗化され
たら、その時点で放電を停止し、アルゴンガスなどの導
入を中止し、メインバルブ(図示せず)を閉じて、反応
器内のマスクを除去し、処理されたメイルシールモール
ドリップ成形品を取り出す。
(5) Once the vulcanized surface of this main lip has been roughened to a predetermined depth, at that point the discharge is stopped, the introduction of argon gas, etc. is stopped, and the main valve (not shown) is closed. The mask inside the reactor is removed and the treated mail seal mold lip molded product is taken out.

このように、高III波スパッタエツチングがスリット
群を通して主リップ部に集中的に行われる結果、そごの
加硫面に数μ?n以上、一般には豹1o〜20μmの深
さの均−Tr粗化栴造が容易に形成され、コノヨウな粗
化構造を有するオイルシールモールドリップ成形品は、
それを実際に用いた場合、未処理物を一定時間摺動させ
たものと同等のシール性能を示しており、初期シール性
が改善されている。これに対して、スリット群を用いず
にオイルシールモールドリップ成形品の表面全体を高周
波スパッタエツチング処理したものは、その処理時間を
かなり延長しても、そこに形成される粗化構造の深さは
高々1μ?n程度であり、初期シール性の改善は達成さ
れない。
In this way, high III-wave sputter etching is concentrated on the main lip through the slit group, resulting in a few μm of etching on the vulcanized surface of the slit. An oil seal mold lip molded product having a uniformly roughened structure with a depth of n or more, generally 10 to 20 μm, is easily formed, and has a uniformly roughened structure.
When it is actually used, it shows a sealing performance equivalent to that of an untreated material that has been slid for a certain period of time, and the initial sealing performance has been improved. On the other hand, when the entire surface of an oil seal mold lip molded product is subjected to high-frequency sputter etching treatment without using a group of slits, even if the treatment time is considerably extended, the depth of the roughened structure formed there will be reduced. Is it at most 1μ? n, and no improvement in initial sealing performance is achieved.

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

第1図は、マスク内にオイルシールモールドリップ成形
品を収容した状態を示す半裁断面図である。また、第2
図は、高周波スパッタエツチング装置の概要図である。 (礼号の説明) 3・・・・・・容器の内周面 4・・・・・・スリット群 5・・・・・・オイルシールの主リップ部10・・・・
・・反応器 11・・・・・・上部電極 12・・・・・・下部電極
FIG. 1 is a half-cut sectional view showing a state in which an oil seal mold lip molded product is housed in a mask. Also, the second
The figure is a schematic diagram of a high frequency sputter etching apparatus. (Explanation of the courtesy code) 3...Inner peripheral surface of the container 4...Slit group 5...Main lip portion 10 of the oil seal...
...Reactor 11...Top electrode 12...Bottom electrode

Claims (1)

【特許請求の範囲】 1、オイルシールモールドリッツ成形品全内周面側に多
数本のスリットを9設した円筒状中空体容器よりなるマ
スク内に収容し、マスク外から高周波スパッタエツチン
グ処理を施すことにより、前記スリットに面するオイル
シールの主すップ部加硫面を粗化させることを特徴とす
るオイルシールの表面処理方法。 2、約lO〜20 amの深さに粗化させる特許請求の
範囲第1項記載のオイルシールの表面処理方法。
[Scope of Claims] 1. The oil-seal molded Ritz molded product is housed in a mask made of a cylindrical hollow container with nine slits on the entire inner circumferential surface, and subjected to high-frequency sputter etching treatment from outside the mask. A method for surface treatment of an oil seal, comprising: roughening the vulcanized surface of the main spout of the oil seal facing the slit. 2. The method for surface treatment of an oil seal according to claim 1, wherein the surface is roughened to a depth of about 10 to 20 am.
JP59037025A 1984-02-28 1984-02-28 Oil seal surface treating method Pending JPS60184771A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59037025A JPS60184771A (en) 1984-02-28 1984-02-28 Oil seal surface treating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59037025A JPS60184771A (en) 1984-02-28 1984-02-28 Oil seal surface treating method

Publications (1)

Publication Number Publication Date
JPS60184771A true JPS60184771A (en) 1985-09-20

Family

ID=12486105

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59037025A Pending JPS60184771A (en) 1984-02-28 1984-02-28 Oil seal surface treating method

Country Status (1)

Country Link
JP (1) JPS60184771A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01132865U (en) * 1988-02-29 1989-09-08
JPH0219925U (en) * 1988-07-18 1990-02-09

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5345339A (en) * 1976-10-04 1978-04-24 Nitto Electric Ind Co Ltd Adhesive-backed fluoring resin film
JPS54134779A (en) * 1978-04-11 1979-10-19 Nitto Electric Ind Co Ltd Surface treatment of ethylene tetrafluoroethylene copolymer molded article

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5345339A (en) * 1976-10-04 1978-04-24 Nitto Electric Ind Co Ltd Adhesive-backed fluoring resin film
JPS54134779A (en) * 1978-04-11 1979-10-19 Nitto Electric Ind Co Ltd Surface treatment of ethylene tetrafluoroethylene copolymer molded article

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01132865U (en) * 1988-02-29 1989-09-08
JPH0219925U (en) * 1988-07-18 1990-02-09

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