JPS59200813A - Manufacture of bearing composed of synthetic resin molded laminate - Google Patents
Manufacture of bearing composed of synthetic resin molded laminateInfo
- Publication number
- JPS59200813A JPS59200813A JP58074060A JP7406083A JPS59200813A JP S59200813 A JPS59200813 A JP S59200813A JP 58074060 A JP58074060 A JP 58074060A JP 7406083 A JP7406083 A JP 7406083A JP S59200813 A JPS59200813 A JP S59200813A
- Authority
- JP
- Japan
- Prior art keywords
- core metal
- resin
- winding
- treated
- synthetic resin
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/20—Sliding surface consisting mainly of plastics
- F16C33/201—Composition of the plastic
Abstract
Description
【発明の詳細な説明】
本発明は、四ふつ化エチレン樹脂（ＰＴＦＥ）の薄板つ
λらなる内側摺動面層と熱硬化性合成樹脂フェスで処理
した樹脂布を巻回積層して得之外Ｓ！１」補嗅ノ橿とか
らなる軸受の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention is produced by winding and laminating an inner sliding surface layer made of a thin plate of tetrafluoroethylene resin (PTFE) and a resin cloth treated with a thermosetting synthetic resin face. Outside S! The present invention relates to a method of manufacturing a bearing comprising a 1" auxiliary olfaction rod.
従来、内側摺動面層がＰＴＦＥからなり、外部」補強プ
ツシが他の合成樹脂からなる巻きプツシ−軸受の製造方
法としては２％公昭４７−５０８９３号、特公昭５６−
８０４５号、特開昭５４−３８９２号などがちるが、こ
れらはいずれも摺動面を形成するＰＴＦＥ層が、 ＰＴ
ＦＥ繊維と他の繊維との交織布からなるものであるため
１寸法稍度上の問題を生じた場合あるいは拡径の必擬を
生じた場合、この内側摺動面層を切削加工によって修正
できないという問題がありた。Conventionally, methods for manufacturing wound pusher bearings in which the inner sliding surface layer is made of PTFE and the outer reinforcing pusher is made of other synthetic resins include 2% Publication No. 47-50893 and Japanese Patent Publication No. 50893/1983.
No. 8045, JP-A No. 54-3892, etc., but in both of these, the PTFE layer forming the sliding surface is PTFE.
Since it is made of a mixed woven fabric of FE fibers and other fibers, if there is a problem with dimensional consistency or if diameter expansion is inevitable, this inner sliding surface layer cannot be corrected by cutting. There was a problem.
すなわち、摺動面を形成する交厭布が刃物によって切ｋ
ｊされるから、低Ｍ傍面が除去され易く軸受性能を者し
く低減せしめることになるからである。In other words, the cloth that forms the sliding surface is cut with a knife.
This is because the low M side surface is likely to be removed due to the low M side surface, which significantly reduces the bearing performance.
さらに、ＰＴＦＥ９織布を内張すしたものは、補強層と
の接合に使用した接着剤が成形時に織布表面（摺動面）
に浸み出して該表面を楼う１唄向があり、 ＰＴＦＥが
本来具有している低摩擦特性を損うという問題がある。In addition, for those lined with PTFE9 woven fabric, the adhesive used to bond the reinforcing layer to the woven fabric surface (sliding surface) during molding.
There is a problem that there is a tendency for the PTFE to leach out and build up on the surface, impairing the low friction properties that PTFE originally has.
したがって、この種の軸受においては、芯金の寸法積度
は当然として、使用する柄廁および基材の種類、樹脂布
やプライマー処理面の乾燥（硬化）度合のほか、成形条
件、キユアリング条件なとを厳しく管理しないと満足の
ゆく製品が得られない。Therefore, in this type of bearing, not only the dimensions and bulk of the core metal but also the type of handle and base material used, the degree of drying (hardening) of the resin cloth and primer treated surface, molding conditions, curing conditions, etc. Unless these are strictly controlled, a satisfactory product cannot be obtained.
もし、内側摺動面層の切ＳＩ３加工が可１化であり・ま
た接着剤の浸み出しヲ悉念しなくてよいとすれは、工程
が一工程謂えたり、切削屑の発生という多少のデメリッ
トがあったとしても、上述したような管理類比による問
題解決の困龜さに比軟して、生産実務上のメリットは太
きいということができる。If cutting SI3 processing of the inner sliding surface layer is possible and there is no need to worry about the adhesive seeping out, it would be possible to reduce the number of cuts in one step and generate cutting waste. Even if there are disadvantages, it can be said that the advantages in practical production are far greater than the difficulty of problem solving using the management analogy mentioned above.
本発明者らは、このような截点に立りて上述の問題を解
決せんとして鋭意研究し９本発明をなすに至ったもので
ある。With this in mind, the present inventors have conducted extensive research to solve the above-mentioned problems and have completed the present invention.
すなわち１片面金膜ふっ前処理したＰＴＦＥ薄板を用意
する。このＰＴＦＥ薄板は、得ようとする軸受の径によ
っても異なるが９通常０．３〜５祁程度。That is, a PTFE thin plate that has been pretreated with a gold film on one side is prepared. The thickness of this PTFE thin plate varies depending on the diameter of the bearing to be obtained, but it is usually about 0.3 to 5 mm.
就中０．５〜３咽の厚さのものが使用される１、板厚が
厚過ぎると芯金に巻き付ける際の作業性の問題のほか、
軸受としたときに、負荷によるフローを生じ易く、耐荷
重性を損なうという問題を生ずるＰＴＦＥは、無添加の
市販の薄板を使うこともできるが、摺動材料として低摩
擦特性をほとんど損うことなく耐摩耗性の向上を狙いと
して、黒鉛や二値化モリブデンなどの固体潤滑剤粉末、
あるいは金属粉末や無機質の粉末を混入した充填材入り
ＰＴＦＥ薄板の適用をはかることは−１層好ましいもの
である。In particular, those with a thickness of 0.5 to 3 mm are used.1 If the plate thickness is too thick, there will be problems with workability when wrapping it around the core metal.
When used as a bearing, PTFE tends to flow due to load, which causes problems such as loss of load resistance. Commercially available thin plates without additives can be used, but as a sliding material, the low friction properties are almost completely lost. Solid lubricant powders such as graphite and binary molybdenum are used to improve wear resistance.
Alternatively, it is more preferable to apply a filler filled PTFE thin plate mixed with metal powder or inorganic powder.
脱ふっ前処理は、上述した薄板がメーカーから引渡され
るとき、すでに行なわれている場合はそのまま使用すれ
ばよく、また常法にしたがって処理剤（たとえば潤工社
製「テトラエッチ」）を用いて行なってもよい。If the above-mentioned thin plate has already been subjected to the pretreatment for defluoridation when delivered from the manufacturer, it can be used as is, or it can be carried out using a treatment agent (for example, "Tetra Etch" manufactured by Junkosha) according to the usual method. You can.
この薄板の脱ふり素した面に、プライマーとしてフェノ
ール樹脂、エポキシ樹脂などの溶液を、塗布し、塗布後
、溶剤を飛ばしておく。A solution of phenol resin, epoxy resin, etc. is applied as a primer to the defluorinated surface of this thin plate, and after application, the solvent is blown off.
なお、プライマー処理に先立つて、脱ふり前処理面に・
たとえは粗面ロールを押圧して該表面に小さな凹凸を与
えておくことは、プライマーによる補強層との接合力を
高めるので有効である。In addition, prior to primer treatment, apply ・
For example, it is effective to press a rough surface roll to give the surface small irregularities because it increases the bonding force with the reinforcing layer formed by the primer.
このように前処理を施しｆｃＰＴＦＥ薄板を、処理面を
外側にして巻き始めと巻き終り端框が少くとも爪なり合
わないように芯金に一重に巻き付ける。このとき、用い
るＰＴＦＥ薄板が加温された状態（おおむね１２０℃前
後）であると、芯金への巻き付けが客易である。作某実
’ｔｆｉ上、塗布したプライマーを１２０℃前後の温度
で加温礼法させ、直ちにこれを巻き付けに供すれは１巻
き付けに除して該れ；Ｉ板を改めて加温する必要はない
。The pretreated fcPTFE thin plate is wrapped in a single layer around the core metal with the treated surface facing outward so that the end frames at the beginning and end of the winding do not overlap each other. At this time, if the PTFE thin plate used is in a heated state (approximately 120° C.), it is easy to wrap it around the core metal. For practical reasons, if the coated primer is warmed to a temperature of around 120° C. and then immediately wrapped, it is necessary to wrap it once; there is no need to heat the I plate again.
つぎに、芯金上に巷き付けたＰＴＦＥ ｉ厚板の上に重
ねて、フェノール佃廁、エポキシ樹脂、７ｊ？リエステ
ル樹脂などの熱硬化性合成樹脂フェノを塗工して得た樹
脂布を加熱加圧しながら巻き付けて積層補強層を形成さ
せる。通常、プライマーと同種の樹脂を塗工して得た樹
脂布が用いられる。Next, layer phenol Tsukuda, epoxy resin, 7j? on the PTFE i thick plate spread on the core metal. A resin cloth obtained by coating a thermosetting synthetic resin phenol such as a polyester resin is wound while heating and pressurizing to form a laminated reinforcing layer. Usually, a resin cloth coated with the same type of resin as the primer is used.
上述した本発明の成形には、ｏ−ルビ成形法が適用され
る。The o-ruby molding method is applied to the molding of the present invention described above.
巻き終ったものを芯金とともにロールド成形機から外し
、これを樹脂の硬化温度（おおむね１３０〜１８０℃）
に加温された雰囲気中で外部から加圧することなしに硬
化を進める。The finished product is removed from the roll molding machine along with the core metal, and is heated to the curing temperature of the resin (approximately 130 to 180°C).
Curing proceeds in a heated atmosphere without external pressure.
硬化温度は、比較的低目に抑え硬化時間をやや長目にと
ることが好ましい。It is preferable to keep the curing temperature relatively low and to take a slightly long curing time.
フェノール樹脂を使用した場合で、１３５±５℃の温度
で６時間程度を標準とするが、軸受の径が大きかったり
、補強層の肉厚が厚い場合（たとえば１０数ミ１１メー
トル以上）などでは、硬化時間をさらに長くすることが
必要である。When using phenolic resin, the standard time is about 6 hours at a temperature of 135±5℃, but if the diameter of the bearing is large or the thickness of the reinforcing layer is thick (for example, more than 10 by 11 meters), , it is necessary to further lengthen the curing time.
この加温された拶囲気中での処理（キユアリング）工程
で、成形物には芯金の熱膨張と成形物の硬化の進行にと
もなう収縮とで、径方向の圧縮力が発生し、′Ｉ′Ｉ８
ｉな成形物となる。In this curing process in the heated ambient air, a radial compressive force is generated in the molded product due to thermal expansion of the core metal and contraction as the molded material hardens. 'I8
It becomes an i-shaped molded product.
ついで、芯金を抜去すると、成形物にはなお若干の収縮
が起きるので２寸法変化が収まるまで成形物を放置する
。Then, when the core metal is removed, the molded product still undergoes some shrinkage, so the molded product is left until the two dimensional changes have subsided.
このキーアリング工程と芯金抜去後の放置の過程で、
ＰＴＦＥ薄板の巻き始めと巻き終り端部に。During this key ring process and the process of leaving it after removing the core metal,
At the beginning and end of winding of PTFE thin plate.
尚初僅かな隙間が存在していたとしても、この隙間はほ
は完全に閉塞する。Even if a small gap exists initially, this gap is completely closed.
このようにして得られた筒管状の頂層ｈｔ形物（４メー
トル長さ程度まで可能）は、用途に応じて適当な長さに
切断し、内外径を軽く切削力１止子ることによって、内
側にＰＴＦＥ摺動面を有し、外側に勿崗９寸法相匿がそ
れほど要求されなければ。The thus obtained cylindrical and tubular top layer HT-shaped product (up to a length of about 4 meters is possible) is cut to an appropriate length depending on the purpose, and the inner and outer diameters are cut with a light cutting force of 1 stop. It has a PTFE sliding surface on the inside and 9 dimensions on the outside are not required.
ＰＴＦＥ内径面は成形したままの市を摺動面とすること
もできる。The PTFE inner diameter surface can also be formed using a molded surface as a sliding surface.
本発明の樹脂布に使用されろ布基材は、ポリエステル繊
維からなる布（商品名テトロン）、ポリエステル繊維と
綿繊維とからなる混紡または交織このほか、！布なども
用いられるが、ガラス繊維９石綿繊維、カーがン繊維な
どからなる無機質織布も耐熱用途として適用し得る。The filter cloth base material used in the resin cloth of the present invention includes a cloth made of polyester fiber (trade name: Tetron), a blended or interwoven cloth made of polyester fiber and cotton fiber, and! Although cloth can also be used, inorganic woven fabrics made of glass fiber, asbestos fiber, carton fiber, etc. can also be used for heat-resistant purposes.
とくにポリエステルあるいはポリエステルを含む混紡、
交織布は。Especially polyester or blends containing polyester,
Mixed woven fabric.
（イ）吸湿性が低いので、吸湿による軸受の寸法変化が
小さいこと。(a) Since it has low hygroscopicity, dimensional changes in the bearing due to moisture absorption are small.
（ロ）キーアリング工程での熱収縮が太きいから、芯金
の熱膨張と相俟って成形物に発生する圧酪力が犬きく
、 ＰＴＦＥ摺動面層と補強層との密層性がよいばかり
でなく、成形物全体としても密な成形物となること。(b) Since the thermal contraction in the keying process is large, the crushing force generated in the molded product in conjunction with the thermal expansion of the core metal is extremely strong.
, Not only should the PTFE sliding surface layer and the reinforcing layer have good dense layer properties, but the entire molded product should also be dense.
（ハ）４ｉ１脂布の製造および巻き付は積層成形性にす
ぐれること。(c) The production and wrapping of 4i1 oil cloth should have excellent lamination moldability.
などの利点があり、とくに基材として好ましい。It has the following advantages and is particularly preferred as a base material.
物
第１図は２本発明の槓層成ｊｎ為らなる軸受の製造に用
いられるロールド成形法の原理図を示すもので、（１）
は芯金、（２）は加圧ローラー、 （３） （４）は加
熱ローラーそして（５）は案内ローラーである。Figure 1 shows a principle diagram of the roll forming method used to manufacture a bearing made of two layers according to the present invention, (1)
(2) is a pressure roller, (3) (4) is a heating roller, and (5) is a guide roller.
芯金（１１ｉｄ、加圧ローラー（２）および加熱ローラ
ー（５１（４１からなる５本のローラーに囲まれた位置
にあり９回転駆動力は芯金に与えられ、６本のＪ−ラー
はこれに接触して従動する。The core metal (11id) is located in a position surrounded by five rollers consisting of the pressure roller (2) and the heating roller (51 (41), and the driving force for nine rotations is given to the core metal, and the six J-rollers are contact and follow.
（６）は芯金に巻き付けられたＰＴＦＥ薄板、（７）は
積層補強層そして（８）は該補強層の形成に用いられる
樹脂布である。 ・
このように、ロールド成形されて樹脂布が巻回積層され
、所定の径（肉厚）に達したら、樹脂布を切断して巻き
納め、ついで成形機から成形物を芯金ともども取外し、
これを芯金ともに加熱炉に移してキュアＩ）ングを行な
う。(6) is a PTFE thin plate wrapped around a core metal, (7) is a laminated reinforcing layer, and (8) is a resin cloth used for forming the reinforcing layer. - In this way, the resin cloth is rolled and laminated through roll molding, and when it reaches a predetermined diameter (thickness), the resin cloth is cut and rolled up, and then the molded product along with the core metal is removed from the molding machine.
This, together with the core metal, is transferred to a heating furnace and cured (I).
第２図は、芯金への巻き始めの状態ケ示す一実施例図、
第６図は積層成形が進んだ状態金示す。FIG. 2 is an example diagram showing the state of the start of winding around the core metal;
FIG. 6 shows the state in which lamination molding has progressed.
ロールド成形による積層成形物は、金型を使用した圧縮
成形による積層成形物に比較して、積層補強層に基材の
乱れや樹脂のフローマークが着かないから均質で美麗で
あること、長尺の筒状積層物として得られ、切断によっ
て所定長さのものを得るので製造が容易であること、内
径のＰＴＦＥ摺動面層は切削加工が可能であるから寸法
的にある程度の自由度を有しており、また外径の補強層
は大巾な寸法的自由度を有していること、そしてＰＴＦ
Ｅ 交織布全使用したものに比較して、接着剤などの浸
み出しがないから、使用したＰＴＦＥ薄板の組成に応じ
た摩擦、摩耗性能が得られること。Compared to laminate molded products made by compression molding using a mold, roll-molded laminates are more uniform and beautiful because there are no base material disturbances or resin flow marks on the laminated reinforcing layer. It is easy to manufacture because it is obtained as a cylindrical laminate and can be cut to a predetermined length, and the inner diameter PTFE sliding surface layer can be cut, so it has a certain degree of dimensional freedom. In addition, the reinforcing layer on the outer diameter has a wide degree of dimensional freedom, and PTF
E. Compared to the case where all mixed woven fabric is used, there is no oozing of adhesive, etc., so friction and abrasion performance can be obtained according to the composition of the PTFE thin plate used.
そして積層構造であるから軸受材として機械的強度が大
きいことなど幾つかの利点がある。Since it has a laminated structure, it has several advantages such as high mechanical strength as a bearing material.
第１図は９本発明の積層成形物からなる軸受の製造に用
いられるロールド成形法の原理図を示す第２図は、 Ｐ
ＴＦＥ薄板および″樹脂布を芯金に巻き始める状態を示
す実施例図、第３図は積層成形が進んだ状態を示す。
（１）芯金、（２）加圧ローラー、 Ｆ＋） 、 （４
１加熱ローラー、（５）案内ローラー、 （６）ＰＴＦ
Ｅ薄板、（７）積層補強層、（８）樹脂布Figure 1 is 9. Figure 2 is a diagram showing the principle of the roll forming method used to manufacture a bearing made of a laminated product of the present invention.
An example diagram showing the state in which the TFE thin plate and resin cloth are started to be wound around the core metal, and Figure 3 shows the state in which lamination molding has progressed. (1) Core metal, (2) Pressure roller, F+), (4)
1 heating roller, (5) guide roller, (6) PTF
E thin plate, (7) laminated reinforcing layer, (8) resin cloth
Claims (1)
らなる薄板を用意し、この脱ふっ素処理面にプライマー
全塗布すること。 ■この処理面を外側にして２巻き始めと巻き終り端縁が
重なり合わないように芯金に一重に巻き付けること。 ■巻き付けた四ふっ化エチレン樹脂薄板上に。 熱硬化性合成樹脂フェスで処理した樹脂布を加熱加圧し
ながら多重に重ね巻きして積層補強層を形成させること
。 ■これを芯金とともに加温された雰囲気中で。 外部から加圧することなしに熱硬化性合成樹脂の硬化？
進めること。 ■ついで、芯金を抜去し、得られた筒管状の積層成形物
を所定の長さに切断すること、′以上の１穆から成る合
成樹脂積層成形物からなる軸受の製造方法。[Scope of Claims] A thin plate made of tetrafluoroethylene resin which has been subjected to defluorination treatment on one side is prepared, and a primer is completely applied to the defluorination treated surface. ■Wrap the wire in a single layer around the core metal with this treated side facing outward so that the beginning and end edges of the second winding do not overlap. ■On a thin plate of polytetrafluoroethylene resin wrapped around it. To form a laminated reinforcing layer by winding a resin cloth treated with a thermosetting synthetic resin face in multiple layers while heating and pressurizing it. ■This is done in a heated atmosphere along with the core metal. Curing thermosetting synthetic resin without applying external pressure?
To proceed. (2) The method for manufacturing a bearing made of a synthetic resin laminate molded product consisting of one square or more of the following steps: (1) The core bar is then removed and the obtained cylindrical and tubular laminate molded product is cut to a predetermined length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58074060A JPS59200813A (en) | 1983-04-28 | 1983-04-28 | Manufacture of bearing composed of synthetic resin molded laminate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58074060A JPS59200813A (en) | 1983-04-28 | 1983-04-28 | Manufacture of bearing composed of synthetic resin molded laminate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59200813A true JPS59200813A (en) | 1984-11-14 |
Family
ID=13536269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58074060A Pending JPS59200813A (en) | 1983-04-28 | 1983-04-28 | Manufacture of bearing composed of synthetic resin molded laminate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59200813A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63189235A (en) * | 1987-01-23 | 1988-08-04 | モートン サイオコール，インコーポレイティド | Method and device for winding crossing tape |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4426324Y1 (en) * | 1965-07-21 | 1969-11-05 | ||
| JPS56138518A (en) * | 1980-03-10 | 1981-10-29 | Goodrich Co B F | Manufacture of bearing assembly |
-
1983
- 1983-04-28 JP JP58074060A patent/JPS59200813A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4426324Y1 (en) * | 1965-07-21 | 1969-11-05 | ||
| JPS56138518A (en) * | 1980-03-10 | 1981-10-29 | Goodrich Co B F | Manufacture of bearing assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63189235A (en) * | 1987-01-23 | 1988-08-04 | モートン サイオコール，インコーポレイティド | Method and device for winding crossing tape |
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