JP2866354B2 - Ring-shaped sliding member - Google Patents
Ring-shaped sliding memberInfo
- Publication number
- JP2866354B2 JP2866354B2 JP27558596A JP27558596A JP2866354B2 JP 2866354 B2 JP2866354 B2 JP 2866354B2 JP 27558596 A JP27558596 A JP 27558596A JP 27558596 A JP27558596 A JP 27558596A JP 2866354 B2 JP2866354 B2 JP 2866354B2
- Authority
- JP
- Japan
- Prior art keywords
- ring
- sliding member
- tape
- shaped
- shaped sliding
- 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.)
- Expired - Fee Related
Links
Landscapes
- Mechanical Sealing (AREA)
- Sealing Devices (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Sliding-Contact Bearings (AREA)
Description
【0001】[0001]
【発明の属する技術分野】この発明は、例えば、軸受、
セグメントリング、メカニカルシール等の耐久性及び摺
動性が要求される部分に用いられるリング状摺動部材に
関する。[0001] The present invention relates to, for example, a bearing,
The present invention relates to a ring-shaped sliding member used for a part requiring durability and slidability, such as a segment ring and a mechanical seal.
【0002】[0002]
【従来の技術】従来、上述した摺動部材としては、例え
ば、粉末又は粒状の四フッ化エチレン樹脂(PTFE樹
脂)を単体として加圧及び焼成して成形した第1従来例
の摺動部材と、短繊維(アラミドチョップ)又は粉体
と、PTFE樹脂とを乾式混合してなる複合体を加圧及
び焼成して成形した第2従来例の摺動部材と、長繊維
(例えば、ポリプロピレン繊維)よりなる織物(例え
ば、織布又は不織布)又はテープ状の素材にフェノール
樹脂を含浸(例えば、塗工)した後、その素材をマンド
レルに巻付け(テープワインディング)て成形及び熱処
理した第3従来例の摺動部材と、シート状素材を積層成
形してなる積層体を焼成した後、その積層体を機械加工
(例えば、切削)によりリング形状に形成した第4従来
例の摺動部材とがある。2. Description of the Related Art Conventionally, as the above-mentioned sliding member, for example, there is a first prior art sliding member formed by pressing and firing powder or granular ethylene tetrafluoride resin (PTFE resin) alone. A second conventional sliding member formed by pressing and firing a composite obtained by dry-mixing a short fiber (aramid chop) or powder and a PTFE resin, and a long fiber (for example, polypropylene fiber) A third conventional example in which a woven fabric (for example, woven or non-woven fabric) or a tape-shaped material is impregnated (for example, coated) with a phenol resin, and then the material is wound around a mandrel (tape winding) to be formed and heat-treated. And a fourth conventional sliding member in which a laminate formed by laminating and forming a sheet material is fired and then the laminate is formed into a ring shape by machining (for example, cutting). .
【0003】[0003]
【発明が解決しようとする課題】しかし、上述した第
1,2,3従来例の各摺動部材は、樹脂と相手材とが直
接対接されるので、短繊維又は長繊維を複合した部材よ
りも熱伝導性が悪く、相互の摺動面に焼付きが生じやす
いため、摺動性が長期間安定して得られない。短繊維又
は粉体と樹脂とを乾式混合した場合、短繊維が均一に混
合されず、短繊維の密部分と、粗部分とができるため、
樹脂単体よりなる部材と同様に、部材の樹脂部分が相手
材に対して直接対接され、長繊維を複合した部材よりも
耐摩耗性が不足し、寿命が短いという欠点を有してい
る。However, in each of the sliding members of the first, second and third conventional examples described above, since the resin and the mating material are directly in contact with each other, a member composed of short fibers or long fibers is used. Since the thermal conductivity is lower than that of the first embodiment and seizure is likely to occur on the mutual sliding surfaces, stable sliding performance cannot be obtained for a long period of time. When dry mixing short fibers or powder and resin, the short fibers are not uniformly mixed, and a dense portion of the short fibers and a coarse portion are formed,
As in the case of a member made of a resin alone, the resin portion of the member is directly in contact with the mating member, and has the disadvantage that the abrasion resistance is shorter and the life is shorter than that of a member composed of long fibers.
【0004】樹脂単体で形成した部材或いは短繊維又は
粉体を複合した部材は、樹脂の結合力のみで強度を維持
しているので、摺動時に生じる荷重が付加されたとき、
亀裂や割れ等が樹脂部分に起きることがあり、耐荷重特
性が乏しく、耐久性に欠けるという問題点を有してい
る。[0004] A member formed of a resin alone or a composite of short fibers or powder maintains its strength only by the bonding force of the resin, so that when a load generated during sliding is applied,
Cracks and cracks may occur in the resin part, resulting in poor load-bearing characteristics and poor durability.
【0005】第3,4従来例の巻重ねタイプ及び積層タ
イプの摺動部材は、成形時の圧力によりシート状素材の
各重合せ面を互いに接合するので、各重合せ面は圧力に
より密着されるが、各層間の結合強度が弱いため、摺動
時に付与される抵抗や応力により、各重合せ面が剥離し
たり、形崩れしたりすることがあり、大きな荷重が負荷
される部分に使用することができない。且つ、積層タイ
プの摺動部材は、積層成形してなる積層体を機械加工し
て所定の形状寸法に切削するので、切削作業に手間及び
時間が掛かるだけでなく、積層体の不要部分を切削除去
するため、歩留まりが悪く、製造コストが高くなるとい
う問題点を有している。In the third and fourth conventional rolling members of the winding type and the laminating type, the respective superposed surfaces of the sheet-like material are joined to each other by the pressure at the time of molding. However, since the bonding strength between the layers is weak, the superposed surfaces may peel or lose shape due to the resistance or stress applied during sliding, and are used in areas where large loads are applied. Can not do it. In addition, since the sliding member of the laminated type is formed by machining a laminated body formed by laminating and cutting it to a predetermined shape and size, not only does the cutting work take time and effort, but also unnecessary parts of the laminated body are cut. There is a problem that the yield is low and the manufacturing cost is high due to the removal.
【0006】この発明は上記問題に鑑み、テープ状素材
を渦巻き状に巻重ねた状態のまま加圧及び焼成して製造
するので、成形が容易に行え、機械的強度が向上すると
共に、歩留まりが良く、製造コストの低減を図ることの
できるリング状摺動部材の提供を目的とする。In view of the above problems, the present invention is manufactured by pressurizing and firing a tape-shaped material in a state of being spirally wound, so that molding can be easily performed, mechanical strength is improved, and the yield is improved. It is an object of the present invention to provide a ring-shaped sliding member that can reduce the manufacturing cost.
【0007】[0007]
【課題を解決するための手段】請求項1記載の発明は、
短繊維と四フッ化エチレン樹脂とを主体して形成された
シート状素材を要求されるテープ幅に切断し、そのテー
プ状素材を渦巻き状に巻重ねて巻重ね体を形成した後、
該巻重ね体を軸線方向に加圧して形成すると共に、四フ
ッ化エチレン樹脂が溶融する温度で巻重ね体を焼成した
ことを特徴とするリング状摺動部材であることを特徴と
する。According to the first aspect of the present invention,
After cutting a sheet-shaped material formed mainly of short fibers and a tetrafluoroethylene resin into a required tape width, and winding the tape-shaped material in a spiral shape to form a wound body,
The ring-shaped sliding member is formed by pressing the wound body in the axial direction and firing the wound body at a temperature at which the ethylene tetrafluoride resin melts.
【0008】請求項2記載の発明は、上記請求項1記載
の構成と併せて、上記シート状素材を抄造法により製造
したリング状摺動部材であることを特徴とする。According to a second aspect of the present invention, in addition to the configuration of the first aspect, a ring-shaped sliding member is produced by manufacturing the sheet-like material by a papermaking method.
【0009】請求項3記載の発明は、上記請求項1又は
2記載の構成と併せて、上記シート状素材の平面部に対
して多数本の線条体を等間隔に隔てて平行に縫合したリ
ング状摺動部材であることを特徴とする。According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, a plurality of striated bodies are sewn in parallel to the flat portion of the sheet material at equal intervals. It is a ring-shaped sliding member.
【0010】請求項4記載の発明は、上記請求項1,2
又は3記載の構成と併せて、上記テープ状素材の巻重ね
時に於いて、上記巻重ね体の摺動面全体が被覆される状
態に膨脹黒鉛シートを巻重ねたリング状摺動部材である
ことを特徴とする。[0010] The invention according to claim 4 is the first and second inventions.
Or a ring-shaped sliding member in which an expanded graphite sheet is wound so that the entire sliding surface of the wound body is covered when the tape-shaped material is wound, in addition to the configuration according to 3. It is characterized by.
【0011】[0011]
【作用】請求項1記載のリング状摺動部材は、短繊維と
四フッ化エチレン樹脂とを主体とするテープ状素材を渦
巻き状に巻重ねた状態のまま加圧及び焼成して、焼成時
の熱処理によりテープ状素材に複合された四フッ化エチ
レン樹脂を溶融させ、その樹脂が硬化するときの結合力
によりテープ状素材の巻重ね面を一体的に結合するの
で、層間の結合強度が向上し、テープ状素材の巻重ね面
が強固に固定されるため、部材自体の機械的強度が向上
する。且つ、テープ状素材を渦巻き状に巻重ねて製造す
るため、成形後に於いて機械加工する必要が無く、歩留
まりが向上する。According to the first aspect of the present invention, the ring-shaped sliding member is pressurized and fired in a state in which a tape-shaped material mainly composed of short fibers and a tetrafluoroethylene resin is spirally wound. Melts the tetrafluoroethylene resin combined with the tape-like material by the heat treatment, and the bonding surface when the resin cures, the wrapping surface of the tape-like material is integrally joined, improving the bonding strength between layers Since the winding surface of the tape-shaped material is firmly fixed, the mechanical strength of the member itself is improved. In addition, since the tape-shaped material is spirally wound and manufactured, there is no need to perform machining after molding, and the yield is improved.
【0012】請求項2記載のリング状摺動部材は、上記
請求項1記載の作用と併せて、シート状素材を抄造法に
より製造することで、シート全体に対して短繊維が均一
に配向され、そのシート状素材を切断してなるテープ状
素材を渦巻き状に巻重ねて成形するので、相手材に対し
て短繊維が均等に対接され、樹脂単体により成形した部
材、短繊維又は粉体を乾式混合した部材よりも耐摩耗性
が向上する。且つ、請求項1記載のリング状摺動部材が
有する特性が損なわれず、同等の効果を奏することがで
きる。In the ring-shaped sliding member according to the second aspect, the short fibers are uniformly oriented to the entire sheet by manufacturing the sheet-like material by a papermaking method in addition to the operation according to the first aspect. Since the tape-like material obtained by cutting the sheet-like material is spirally wound and formed, the short fibers are evenly brought into contact with the mating member, and the member, the short fibers or the powder formed by the resin alone Has a higher wear resistance than a member obtained by dry mixing. In addition, the characteristics of the ring-shaped sliding member according to the first aspect are not impaired, and the same effects can be obtained.
【0013】請求項3記載のリング状摺動部材は、上記
請求項1又は2記載の作用と併せて、例えば、長繊維、
金属線等の線条体をシート状素材に縫合して、そのシー
ト状素材を切断してなるテープ状素材を渦巻き状に巻重
ねて成形するので、テープ状素材の巻重ね面が線条体に
より強固に接合され、層間の接合強度が向上し、樹脂単
体により成形した部材、短繊維を複合した部材よりも耐
摩耗性が向上する。且つ、線条体の縫合により部材の強
度が高められ、耐荷重特性及び機械的強度が向上する。According to the third aspect of the present invention, the ring-shaped sliding member has a function of, for example, a long fiber,
A striated body such as a metal wire is sewn to a sheet-like material, and a tape-like material obtained by cutting the sheet-like material is spirally wound and formed. The bonding strength between layers is improved, and the abrasion resistance is improved as compared with a member molded from a single resin or a member combined with short fibers. In addition, the strength of the member is increased by suturing the striatum, and the load-bearing characteristics and the mechanical strength are improved.
【0014】請求項4記載のリング状摺動部材は、上記
請求項1,2又は3記載の作用と併せて、部材に複合さ
れた膨脹黒鉛シートを相手材に直接対接するので、膨脹
黒鉛シート自体の特性により耐熱特性及び耐摩耗性が向
上し、摺動面に焼付きが生じるのを防止でき、摺動性が
長期間安定して得られる。In the ring-shaped sliding member according to the fourth aspect, the expanded graphite sheet combined with the member is brought into direct contact with the mating member, in addition to the operation according to the first, second or third aspect. The heat resistance and abrasion resistance are improved by its own characteristics, seizure can be prevented from occurring on the sliding surface, and the slidability can be obtained stably for a long period of time.
【0015】[0015]
【発明の効果】この発明によれば、テープ状素材を渦巻
き状に巻重ねた状態のまま加圧及び焼成して四フッ化エ
チレン樹脂を溶融させ、四フッ化エチレン樹脂が硬化す
るときの結合力によりテープ状素材の巻重ね面を一体的
に結合させるので、従来例のような巻重ねタイプや積層
タイプの摺動部材よりも層間の結合強度が向上し、テー
プ状素材の巻重ね面が強固に固定されるため、剥離や形
崩れ等が起きるのを防止できると共に、部材自体の機械
的強度が向上し、製造時の形態を長期間維持することが
できる。According to the present invention, while the tape-shaped material is spirally wound, pressure and sintering are performed to melt the ethylene tetrafluoride resin and to form a bond when the ethylene tetrafluoride resin is cured. Since the winding surfaces of the tape-shaped material are integrally joined by force, the bonding strength between the layers is higher than that of the conventional sliding type or laminated type sliding member, and the winding surface of the tape-shaped material is improved. Since it is firmly fixed, it is possible to prevent peeling, shape collapse, and the like from occurring, and the mechanical strength of the member itself is improved, so that the form at the time of manufacturing can be maintained for a long time.
【0016】しかも、テープ状素材を渦巻き状に巻重ね
て製造するので、部材の成形が容易に行えると共に、成
形後に於いて機械加工する必要が無く、歩留まりが向上
する。且つ、製造工程が簡素化されるため、製造コスト
の低減を図ることができる。さらに、シート状素材を抄
造法により製造することで、シート全体に対して短繊維
が均一に配向され、その短繊維が配向されたテープ状素
材により摺動部材を成形するので、相手材に対して短繊
維が均等に対接され、樹脂単体で成形した部材、短繊維
又は粉体を乾式混合した部材よりも耐摩耗性が向上す
る。Moreover, since the tape-shaped material is manufactured by spirally winding the members, the members can be easily formed, and there is no need to perform machining after forming, thereby improving the yield. In addition, since the manufacturing process is simplified, the manufacturing cost can be reduced. Furthermore, by manufacturing the sheet-like material by a papermaking method, the short fibers are uniformly oriented with respect to the entire sheet, and the sliding member is formed from the tape-like material in which the short fibers are oriented. The short fibers are evenly brought into contact with each other, and the wear resistance is improved as compared with a member formed of a resin alone, or a member obtained by dry-mixing short fibers or powder.
【0017】さらにまた、線条体が縫合されたテープ状
素材により摺動部材を成形することで、テープ状素材の
巻重ね面が線条体により強固に接合され、層間の接合強
度が向上し、樹脂単体又は短繊維を複合した部材よりも
耐摩耗性が向上する。且つ、線条体の複合により部材の
強度が高められ、耐荷重特性及び機械的強度が向上す
る。加えて、摺動部材に複合された膨脹黒鉛シートを相
手材に対して直接対接することで、膨脹黒鉛シート自体
の特性により耐熱特性及び耐摩耗性が向上し、摺動面に
焼付きが生じるのを防止でき、摺動性が長期間安定して
得られる。Furthermore, by forming the sliding member from the tape-shaped material to which the striated body is sewn, the winding surface of the tape-shaped material is firmly joined by the striated body, and the bonding strength between the layers is improved. The abrasion resistance is improved as compared with a member made of a resin alone or a composite of short fibers. Moreover, the strength of the member is increased by the composite of the striated body, and the load-bearing characteristics and the mechanical strength are improved. In addition, by directly contacting the expanded graphite sheet combined with the sliding member against the mating material, heat resistance and wear resistance are improved due to the properties of the expanded graphite sheet itself, and seizure occurs on the sliding surface. And slidability can be obtained stably for a long period of time.
【0018】[0018]
【実施例】図面は短繊維と四フッ化エチレン樹脂とを主
体として形成されたテープ状素材を渦巻き状に巻重ねて
なる第1実施例のリング状摺動部材1を示し、図5に示
すリング形状の摺動部材1を製造する場合、短繊維2
(例えば、フィブリル化されたアラミド繊維)と、四フ
ッ化エチレン樹脂3(PTFE樹脂)とを、例えば、ミ
キサー(図示省略)により均一に湿式混合した後、図1
に示すように、その混合した素材を抄造法により抄造し
てシート状素材4を形成する。FIG. 5 shows a ring-shaped sliding member 1 of a first embodiment in which a tape-shaped material mainly composed of short fibers and ethylene tetrafluoride resin is spirally wound, and is shown in FIG. When the ring-shaped sliding member 1 is manufactured, the short fibers 2
After uniformly wet-mixing (for example, fibrillated aramid fibers) and ethylene tetrafluoride resin 3 (PTFE resin) with, for example, a mixer (not shown), FIG.
As shown in FIG. 2, the mixed material is formed into a sheet material 4 by a paper forming method.
【0019】次に、図2に示すように、そのシート状素
材4を、例えば、軸受、セグメントリング、メカニカル
シール等の組付け部分に応じたテープ幅に切断してテー
プ状素材5を切取る。図3に示すように、そのテープ状
素材5を、中実又は中空に形成した軸形状を有する巻付
け部材7(マンドレル)の外周面に対して渦巻き状に多
数回巻付けてリング形状の巻重ね体6を形成した後、図
4に示すように、成形機8を構成する金型本体8aに巻
重ね体6を装填し、巻重ね体6の中心部にコア金型8b
を挿入した後、上金型8cと下金型8dとで巻重ね体6
の両側端面を軸線方向に加圧して、テープ状素材5を軸
線方向に対して断面波形に圧縮変形させた状態に成形す
る。Next, as shown in FIG. 2, the sheet-like material 4 is cut into a tape width corresponding to an assembly portion such as a bearing, a segment ring, a mechanical seal, etc., and a tape-like material 5 is cut out. . As shown in FIG. 3, the tape-shaped material 5 is spirally wound many times around the outer peripheral surface of a winding member 7 (mandrel) having a solid or hollow shaft shape. After forming the stacked body 6, as shown in FIG. 4, the wound body 6 is loaded into a mold body 8 a constituting the molding machine 8, and a core mold 8 b is provided at the center of the stacked body 6.
Is inserted, and the upper body 8c and the lower mold 8d
Are pressed in the axial direction to form the tape-shaped material 5 in a state where the tape-shaped material 5 is compressed and deformed into a cross-sectional waveform in the axial direction.
【0020】次に、成形時又は成形後に於いて、巻重ね
体6を、四フッ化エチレン樹脂3が溶融する温度(約3
27℃以上の高温)に熱処理して一体的に焼成すること
で、焼成時に於いて、混合された四フッ化エチレン樹脂
3が溶融し、その樹脂3が硬化するときの結合力により
テープ状素材5の巻重ね面が一体的に結合されるため、
図5に示すように、渦巻き状に巻重ねられた状態のまま
テープ状素材5の巻重ね面が強固に固定され、一つのリ
ング状摺動部材1を製造することができる。Next, at the time of molding or after molding, the wound body 6 is heated to a temperature (about 3 ° C.) at which the tetrafluoroethylene resin 3 melts.
(Temperature of 27 ° C. or higher) and sintering integrally, so that at the time of sintering, the mixed ethylene tetrafluoride resin 3 is melted and the tape-like material is formed by the bonding force when the resin 3 is hardened. Since the winding surfaces of No. 5 are integrally joined,
As shown in FIG. 5, the winding surface of the tape-shaped material 5 is firmly fixed while being spirally wound, and one ring-shaped sliding member 1 can be manufactured.
【0021】なお、上述した実施例では、短繊維2の一
例として、アラミド繊維を複合した例を説明したが、例
えば、ポリイミド繊維、炭素繊維等の何れかを短繊維2
として複合するもよく、また、シート状素材4は、短繊
維2と四フッ化エチレン樹脂3とを主体として形成され
ているが、例えば、黒鉛、カーボン、二硫化モリブデ
ン、金属粉等の充填材を用途及び目的に応じて追加複合
してもよい。In the above-described embodiment, an example in which aramid fibers are combined has been described as an example of the short fibers 2. For example, any one of a polyimide fiber and a carbon fiber may be used.
The sheet material 4 is formed mainly of the short fibers 2 and the ethylene tetrafluoride resin 3, and may be, for example, a filler such as graphite, carbon, molybdenum disulfide, or metal powder. May be additionally compounded depending on the use and purpose.
【0022】上述したリング状摺動部材1は、テープ状
素材5を渦巻き状に巻重ねた状態のまま加圧及び焼成し
て四フッ化エチレン樹脂3を溶融させ、、四フッ化エチ
レン樹脂3が硬化するときの結合力によりテープ状素材
5の巻重ね面を一体的に結合させるので、従来例のよう
な巻重ねタイプや積層タイプの摺動部材よりも層間の結
合強度が向上し、テープ状素材5の巻重ね面が強固に固
定されるため、剥離や形崩れ等が起きるのを防止するこ
とができる。部材自体の機械的強度が向上し、製造時の
形態を長期間維持することができる。The above-mentioned ring-shaped sliding member 1 is pressurized and baked while the tape-shaped material 5 is spirally wound to melt the tetrafluoroethylene resin 3, Since the winding surface of the tape-shaped material 5 is integrally bonded by the bonding force at the time of curing, the bonding strength between the layers is improved as compared with the conventional sliding member of the winding type or the laminating type, and the tape Since the winding surface of the shaped material 5 is firmly fixed, it is possible to prevent peeling, shape collapse, and the like from occurring. The mechanical strength of the member itself is improved, and the form at the time of manufacture can be maintained for a long time.
【0023】しかも、テープ状素材5を渦巻き状に巻重
ねて製造するので、部材の成形が容易に行えると共に、
成形品の巻重ね体6を機械加工する必要が無く、歩留ま
りが向上する。且つ、製造工程が簡素化されるため、製
造コストの低減を図ることができる。さらに、短繊維2
と四フッ化エチレン樹脂3とを湿式混合して、短繊維2
を均一に混合した後、抄造法(図示省略)によりシート
状素材4を製造するので、シート状素材4全体に対して
短繊維2が均一に配向され、その短繊維2が配向された
テープ状素材5により摺動部材1を成形するので、相手
材に対して短繊維2が均等に対接され、樹脂単体で成形
した部材、短繊維又は粉体を乾式混合した部材よりも耐
摩耗性が向上する。Further, since the tape-shaped material 5 is manufactured by being spirally wound, the members can be easily formed, and
There is no need to machine the wound body 6 of the molded product, and the yield is improved. In addition, since the manufacturing process is simplified, the manufacturing cost can be reduced. Furthermore, short fiber 2
And the tetrafluoroethylene resin 3 are wet-mixed to form short fibers 2
Is uniformly mixed, and then the sheet material 4 is manufactured by a papermaking method (not shown). Therefore, the short fibers 2 are uniformly oriented with respect to the entire sheet material 4, and the tape shape in which the short fibers 2 are oriented. Since the sliding member 1 is formed from the raw material 5, the short fibers 2 are evenly brought into contact with the mating material, and the wear resistance is higher than that of a member formed of a single resin or a member obtained by dry mixing short fibers or powder. improves.
【0024】特に、フィブリル化した繊維を使用した場
合は、繊維自体が絡み易く、繊維が抜けにくくなるた
め、抄造後のシート状素材4の強度を大きくすることが
可能となり、シード状物の厚さを極端に薄くすることが
できる。従って、樹脂との複合物であるにもかかわら
ず、緻密で剛直な成形体を構成することができ、耐クリ
ープ性能が向上する。また、水中に分散した小分子量の
四フッ化エチレン樹脂3(PTFE樹脂)が繊維材料に
付着し易いこととあいまって耐摩耗性が向上する。In particular, when fibrillated fibers are used, the fibers themselves are easily entangled and the fibers are hard to be removed, so that the strength of the sheet-like material 4 after papermaking can be increased, and the thickness of the seed-like material can be increased. The thickness can be made extremely thin. Therefore, a dense and rigid molded body can be formed despite the compound with the resin, and the creep resistance is improved. Further, abrasion resistance is improved in combination with the fact that the small molecular weight ethylene tetrafluoride resin 3 (PTFE resin) dispersed in water easily adheres to the fiber material.
【0025】図6は複数本の線条体9(例えば、長繊維
又は金属線等)が複合されたテープ状素材5を巻重ねて
なる第2実施例のリング状摺動部材10を示し、リング
状摺動部材10を製造する場合、第1実施例のようにし
て抄造されたシート状素材4の平面部に対して多数本の
各線条体9…を等間隔に隔てて平行に縫合し、そのシー
ト状素材4をテープ幅に切断してテープ状素材5を形成
する。そのテープ状素材4の平面全長には複数本の各線
条体9…が縫合されており、テープ状素材5を渦巻き状
に巻重ねてなる巻重ね体6を加圧及び焼成して四フッ化
エチレン樹脂3を溶融させ、四フッ化エチレン樹脂3が
硬化するときの結合力により、テープ状素材5の巻重ね
面を一体的に結合固定させるので、線条体9が複合され
たリング状摺動部材10を製造することができる。第1
実施例のリング状摺動部材1が有する特性及び効果に加
えて、線条体9が縫合されたテープ状素材5により摺動
部材10を成形するので、テープ状素材5の巻重ね面が
線条体9により強固に接合され、層間の接合強度が向上
し、樹脂単体又は短繊維を複合した部材よりも耐摩耗性
が向上する。且つ、線条体9の複合により摺動部材10
の強度が高められ、耐荷重特性及び機械的強度が向上す
る。FIG. 6 shows a ring-shaped sliding member 10 of a second embodiment in which a tape-shaped material 5 in which a plurality of filaments 9 (for example, long fibers or metal wires) are composited is wound. When the ring-shaped sliding member 10 is manufactured, a large number of each of the striated bodies 9 are stitched in parallel to the flat portion of the sheet-shaped material 4 formed as in the first embodiment at equal intervals. Then, the sheet material 4 is cut into a tape width to form a tape material 5. A plurality of striated bodies 9 are sewn on the entire length of the tape-shaped material 4 in a plane, and a rolled body 6 formed by spirally winding the tape-shaped material 5 is pressed and fired to form tetrafluoride. Since the ethylene resin 3 is melted and the winding surface of the tape-shaped material 5 is integrally fixed by the bonding force when the tetrafluoroethylene resin 3 is hardened, the ring-shaped slide in which the striated body 9 is composited is formed. The moving member 10 can be manufactured. First
In addition to the characteristics and effects of the ring-shaped sliding member 1 of the embodiment, the sliding member 10 is formed from the tape-shaped material 5 to which the striated body 9 is sewn. The bonding is firmly performed by the strips 9, the bonding strength between the layers is improved, and the wear resistance is improved as compared with a member composed of a single resin or a composite of short fibers. In addition, the sliding member 10
And the load-carrying characteristics and mechanical strength are improved.
【0026】上述した実施例では、長繊維又は金属線の
何れかを線条体9として複合するが、例えば、アラミド
繊維、ガライス繊維、ポリイミド繊維、延伸処理された
PTFE繊維等の何れかを長繊維として複合したり、或
いは、ステンレス線、アルミニウム線、銅線等の何れか
を金属線として複合するもよく、用途及び目的に応じて
線条体9の材質を選択してもよい。In the above-described embodiment, either the long fiber or the metal wire is compounded as the striated body 9. For example, any one of the aramid fiber, the gallice fiber, the polyimide fiber, and the stretched PTFE fiber is used. The wire may be combined as a fiber, or any of a stainless wire, an aluminum wire, a copper wire, or the like may be combined as a metal wire, and the material of the striated body 9 may be selected according to the application and purpose.
【0027】図7は第1実施例又は第2実施例を構成す
る巻重ね体6の外周面全長に膨脹黒鉛シート11を重合
してなる第3実施例のリング状摺動部材12を示し、リ
ング状摺動部材12を製造する場合、第1実施例又は第
2実施例のテープ状素材5を巻重ねるとき又は巻重ねた
後、その巻重ね体6の外周面全長に膨脹黒鉛シート11
を重合した状態のまま加圧及び焼成して四フッ化エチレ
ン樹脂3を溶融させ、四フッ化エチレン樹脂3の結合力
により、リング状摺動部材12の外周面全長に対して膨
脹黒鉛シート11を一体的に結合させるので、膨脹黒鉛
シート11が複合されたリング状摺動部材12を製造す
ることができる。上述のようにして製造したリング状摺
動部材12は、外周面全長に重合された膨脹黒鉛シート
11を相手材に対して直接対接するので、第1実施例及
び第2実施例の各リング状摺動部材1,10が有する特
性及び効果に加えて、膨脹黒鉛シート11自体の特性に
より耐熱特性及び耐摩耗性が向上すると共に、摺動面に
焼付きが生じるのを防止でき、摺動性が長期間安定して
得られる。FIG. 7 shows a ring-shaped sliding member 12 according to a third embodiment in which an expanded graphite sheet 11 is superimposed on the entire outer peripheral surface of the rolled body 6 constituting the first embodiment or the second embodiment. When the ring-shaped sliding member 12 is manufactured, when the tape-shaped material 5 of the first or second embodiment is wound or after being wound, the expanded graphite sheet 11 extends over the entire outer peripheral surface of the wound body 6.
Is pressurized and fired in a polymerized state to melt the tetrafluoroethylene resin 3, and due to the binding force of the tetrafluoroethylene resin 3, the expanded graphite sheet 11 extends over the entire outer peripheral surface of the ring-shaped sliding member 12. Are integrally joined, so that the ring-shaped sliding member 12 in which the expanded graphite sheet 11 is composited can be manufactured. Since the ring-shaped sliding member 12 manufactured as described above directly contacts the mating material with the expanded graphite sheet 11 that is superimposed on the entire outer peripheral surface, the ring-shaped sliding member 12 of each of the first embodiment and the second embodiment is used. In addition to the properties and effects of the sliding members 1 and 10, the properties of the expanded graphite sheet 11 itself improve heat resistance and abrasion resistance, and can prevent seizure from occurring on the sliding surface. Can be obtained stably for a long time.
【0028】図8は第1実施例又は第2実施例を構成す
る巻重ね体6の一側端面に膨脹黒鉛シート13を重合し
てなる第4実施例のリング状摺動部材14を示し、リン
グ状摺動部材14を製造する場合、第1実施例又は第2
実施例のテープ状素材5を巻重ねるとき又は巻重ねた
後、そのテープ状素材5の一側端面に膨脹黒鉛シート1
3を重合する。巻重ね体6の一側端面に膨脹黒鉛シート
13を重合した状態のまま加圧及び焼成して四フッ化エ
チレン樹脂3を溶融させ、四フッ化エチレン樹脂3の結
合力により、リング状摺動部材14の一側端面に対して
膨脹黒鉛シート13を一体的に結合させるので、膨脹黒
鉛シート13が複合されたリング状摺動部材14を製造
することができる。上述のようにして製造したリング状
摺動部材14は、一側端面に重合された膨脹黒鉛シート
13を相手材に対して直接対接するので、第1実施例及
び第2実施例の各リング状摺動部材1,10が有する特
性及び効果に加えて、耐熱特性及び耐摩耗性が向上し、
第3実施例と同等の効果を奏することができる。FIG. 8 shows a ring-shaped sliding member 14 of a fourth embodiment in which an expanded graphite sheet 13 is superposed on one end face of the rolled body 6 constituting the first or second embodiment. When manufacturing the ring-shaped sliding member 14, the first embodiment or the second embodiment
When or after winding the tape-shaped material 5 of the embodiment, the expanded graphite sheet 1 is attached to one end surface of the tape-shaped material 5.
3 is polymerized. The expanded graphite sheet 13 is polymerized on one end surface of the rolled body 6 and pressurized and baked in a state of being polymerized to melt the tetrafluoroethylene resin 3, and the ring-shaped sliding is performed by the bonding force of the tetrafluoroethylene resin 3. Since the expanded graphite sheet 13 is integrally connected to one end surface of the member 14, the ring-shaped sliding member 14 in which the expanded graphite sheet 13 is combined can be manufactured. The ring-shaped sliding member 14 manufactured as described above directly contacts the mating material with the expanded graphite sheet 13 superimposed on one side end face, and thus each ring-shaped sliding member of the first embodiment and the second embodiment. In addition to the properties and effects of the sliding members 1 and 10, the heat resistance and wear resistance are improved,
The same effect as that of the third embodiment can be obtained.
【0029】なお、この発明は、上述した実施例の構成
のみに限定されるものではない。The present invention is not limited only to the configuration of the embodiment described above.
【0030】第3実施例のリング状摺動部材12は、膨
脹黒鉛シート11を外周面全長に重合し、第4実施例の
リング状摺動部材14は、膨脹黒鉛シート13を一側端
面に重合しているが、例えば、リング状摺動部材12,
14の内周面全長及び又は両側端面に膨脹黒鉛シート1
1,13を重合するもよく、組付け部分に応じて膨脹黒
鉛シートの重合個所を選択してもよい。The ring-shaped sliding member 12 of the third embodiment has the expanded graphite sheet 11 overlapped over the entire outer peripheral surface, and the ring-shaped sliding member 14 of the fourth embodiment has the expanded graphite sheet 13 on one end surface. Although they are polymerized, for example, the ring-shaped sliding members 12,
Expanded graphite sheet 1 on the entire inner peripheral surface and / or both end surfaces of 14
It is also possible to polymerize 1, 13 or to select a polymerized portion of the expanded graphite sheet according to an assembly portion.
【図1】 抄造されたシート状素材を示す斜視図。FIG. 1 is a perspective view showing a sheet-shaped material that has been made.
【図2】 テープ状素材の切取り状態を示す斜視図。FIG. 2 is a perspective view showing a cut-off state of the tape-shaped material.
【図3】 テープ状素材の巻重ね動作を示す側面図。FIG. 3 is a side view showing a winding operation of the tape-shaped material.
【図4】 成形機による巻重ね体の加圧動作を示す断面
図。FIG. 4 is a sectional view showing an operation of pressing a wound body by a molding machine.
【図5】 第1実施例のリング状摺動部材を示す要部断
面図。FIG. 5 is a sectional view of a main part showing the ring-shaped sliding member of the first embodiment.
【図6】 第2実施例のリング状摺動部材を示す要部断
面図。FIG. 6 is an essential part cross-sectional view showing a ring-shaped sliding member of a second embodiment.
【図7】 第3実施例のリング状摺動部材を示す要部断
面図。FIG. 7 is an essential part cross-sectional view showing a ring-shaped sliding member of a third embodiment.
【図8】 第4実施例のリング状摺動部材を示す要部断
面図。FIG. 8 is a sectional view of an essential part showing a ring-shaped sliding member according to a fourth embodiment.
1…リング状摺動部材 2…短繊維 3…四フッ化エチレン樹脂 4…シート状素材 5…テープ状素材 6…巻重ね体 7…巻付け部材 8…成形機 9…線条体 10…リング状摺動部材 11,13…膨脹黒鉛シート 12,14…リング状摺動部材 DESCRIPTION OF SYMBOLS 1 ... Ring-shaped sliding member 2 ... Short fiber 3 ... Ethylene tetrafluoride resin 4 ... Sheet-like material 5 ... Tape-like material 6 ... Wound body 7 ... Wounding member 8 ... Molding machine 9 ... Striated body 10 ... Ring -Shaped sliding member 11, 13 ... expanded graphite sheet 12, 14-ring-shaped sliding member
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6,DB名) C08J 5/00 - 5/02,5/12 - 5/22 F16C 33/00 - 33/28 F16J 15/16 F16J 15/34──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 6 , DB name) C08J 5/00-5 / 02,5 / 12-5/22 F16C 33/00-33/28 F16J 15 / 16 F16J 15/34
Claims (4)
て形成されたシート状素材を要求されるテープ幅に切断
し、そのテープ状素材を渦巻き状に巻重ねて巻重ね体を
形成した後、該巻重ね体を軸線方向に加圧して形成する
と共に、四フッ化エチレン樹脂が溶融する温度で巻重ね
体を焼成したことを特徴とするリング状摺動部材。1. A sheet material formed mainly of short fibers and ethylene tetrafluoride resin is cut into a required tape width, and the tape material is spirally wound to form a rolled body. A ring-shaped sliding member, wherein the wound body is formed by pressing the wound body in the axial direction, and the wound body is fired at a temperature at which the ethylene tetrafluoride resin melts.
請求項1記載のリング状摺動部材。2. The ring-shaped sliding member according to claim 1, wherein said sheet-shaped material is manufactured by a papermaking method.
の線条体を等間隔に隔てて平行に縫合した請求項1又は
2記載のリング状摺動部材。3. The ring-shaped sliding member according to claim 1, wherein a number of striated bodies are sewn in parallel to the flat portion of the sheet material at equal intervals.
記巻重ね体の摺動面全体が被覆される状態に膨脹黒鉛シ
ートを巻重ねた請求項1,2又は3記載のリング状摺動
部材。4. The ring-shaped slide according to claim 1, wherein when the tape-shaped material is wound, an expanded graphite sheet is wound so as to cover the entire sliding surface of the wound body. Moving member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27558596A JP2866354B2 (en) | 1996-09-25 | 1996-09-25 | Ring-shaped sliding member |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27558596A JP2866354B2 (en) | 1996-09-25 | 1996-09-25 | Ring-shaped sliding member |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH1095859A JPH1095859A (en) | 1998-04-14 |
JP2866354B2 true JP2866354B2 (en) | 1999-03-08 |
Family
ID=17557514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP27558596A Expired - Fee Related JP2866354B2 (en) | 1996-09-25 | 1996-09-25 | Ring-shaped sliding member |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2866354B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100938098B1 (en) * | 2009-06-16 | 2010-01-21 | 윤영직 | Manufacturing method of wear ring |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4460395B2 (en) * | 2004-09-02 | 2010-05-12 | 株式会社ショーワ | Rotary damper |
JP6025434B2 (en) * | 2012-07-19 | 2016-11-16 | オイレス工業株式会社 | Sliding member |
-
1996
- 1996-09-25 JP JP27558596A patent/JP2866354B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100938098B1 (en) * | 2009-06-16 | 2010-01-21 | 윤영직 | Manufacturing method of wear ring |
Also Published As
Publication number | Publication date |
---|---|
JPH1095859A (en) | 1998-04-14 |
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