JPH03788A - Carbon fiber/expanded graphite composite packing and its manufacture - Google Patents
Carbon fiber/expanded graphite composite packing and its manufactureInfo
- Publication number
- JPH03788A JPH03788A JP1135644A JP13564489A JPH03788A JP H03788 A JPH03788 A JP H03788A JP 1135644 A JP1135644 A JP 1135644A JP 13564489 A JP13564489 A JP 13564489A JP H03788 A JPH03788 A JP H03788A
- Authority
- JP
- Japan
- Prior art keywords
- expanded graphite
- tape
- core material
- graphite tape
- carbon fiber
- 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.)
- Granted
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 239000010439 graphite Substances 0.000 title claims abstract description 105
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 105
- 238000012856 packing Methods 0.000 title claims abstract description 55
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 32
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 32
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 239000011162 core material Substances 0.000 claims abstract description 43
- 238000004804 winding Methods 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 7
- 239000004744 fabric Substances 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000010455 vermiculite Substances 0.000 description 2
- 229910052902 vermiculite Inorganic materials 0.000 description 2
- 235000019354 vermiculite Nutrition 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、流体機器の軸封部に用いられる膨張黒鉛を主
体としたパツキンおよびその製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a packing mainly made of expanded graphite used in shaft seals of fluid equipment, and a method for manufacturing the same.
［従来の技術〕
流体がポンプやバルブなどの流体機器の軸封部から機外
に漏洩するのを防止するために、軸封部を構成している
パツキンボックス（スタフィンボックス）に装入される
グランドパツキンとして、テープ状のパツキン素材をう
ず巻き状に巻回したのち、金型で加圧成形するダイモー
ルド方式によって製造されるものが知られており、この
種のパツキンとして、■膨張黒鉛テープをうず巻き状に
巻回したのち、金型で加圧成形したもの、■膨張黒鉛テ
ープの少なくとも片面の幅方向略全域に、例えば金網な
どの網状構造体を添接したのちうず巻き状に巻回し、こ
れを金型によって加圧成形することで、膨張黒鉛テープ
の巻回層間に網状構造体を配置したもの、■真直の炭素
ｍｍを膨張黒鉛テープの長手方向に沿って少なくとも片
面の幅方向略全域に対応させて接着したのち、うず巻き
状に巻回し、これを金型によって加圧成形することで、
膨張黒鉛テープの巻回層間に複数の炭素繊維を配置した
ものなどがある。[Prior Art] In order to prevent fluid from leaking out of the machine from the shaft seal of a fluid device such as a pump or valve, the fluid is charged into a stuffing box that constitutes the shaft seal. It is known that ground packing is manufactured using a die-mold method in which a tape-shaped packing material is wound in a spiral shape and then pressure-molded in a mold. is wound in a spiral shape, and then pressure-formed in a mold; ■A net-like structure such as a wire mesh is attached to substantially the entire width of at least one side of the expanded graphite tape, and then wound in a spiral shape; By press-forming this with a mold, a network structure is arranged between the wound layers of the expanded graphite tape. After adhering in a manner that corresponds to
There is one in which a plurality of carbon fibers are arranged between wound layers of expanded graphite tape.
そして、これらのパツキンは、パツキンボックスへの装
入時の作業を容易にするためや、或いは、保守点検時に
おいて、引掛は工具によって引掛けてパツキンボックス
から取り出す作業性を容易にするために、円周方向の１
箇所で切断した非無端状でパツキンボックスに装入され
ている。These packings are designed to facilitate the work of loading them into the packing box, or to make it easier to take them out of the packing box by hooking them with a tool during maintenance and inspection. 1 in circumferential direction
It is cut at certain points and placed in a packing box in a non-endless form.
［発明が解決しようとする課題］
ところが、前記■で述べた従来のパツキンは、比較的脆
い性質の膨張黒鉛単味によって構成されているから、引
掛は工具を用いてパツキンボックスから取り出す場合に
折損し易く、取出作業性がきわめて悪い問題点を有して
いる。[Problems to be Solved by the Invention] However, since the conventional packing described in item (2) above is composed of only expanded graphite, which is relatively brittle, the hooks may break when removed from the packing box using a tool. The problem is that it is easy to remove, and the workability of taking it out is extremely poor.
また、前記■で述べた従来のパツキンは、膨張黒鉛テー
プの脆性を金網などの網状構造体によって補うことがで
きるので、パツキンボックスから取り出す場合の折損が
避けられ、取出作業性を向上させることができる利点を
有してはいるものの、パツキンの寸法が変るのに応じて
、メツシュなどの仕様の異なる網状構造体を使用しなけ
ればならない製作上の煩わしさが有る。しかも金網のよ
うな不燃性材料の網状構造体が使用されていると、廃棄
処分のために焼却しても金網が残存するので、弟分後の
処理が煩雑になるなどの問題点を有している。In addition, in the conventional packing described in item ① above, the brittleness of the expanded graphite tape can be compensated for by a mesh structure such as a wire mesh, so breakage when taking it out from the packing box can be avoided, and the workability of taking out the packing can be improved. Although this method has the advantage of being able to do so, it is complicated in manufacturing, as it requires the use of meshes or other net-like structures with different specifications as the dimensions of the packing change. Moreover, if a mesh structure made of non-combustible material such as wire mesh is used, the wire mesh will remain even if it is incinerated for disposal, resulting in problems such as complicated disposal after disposal. There is.
さらに、前記■で述べた従来のパツキンは、膨張黒鉛テ
ープの脆性を複数の炭素繊維によって補うことができる
ので、前記■で述べたパツキンと同様にパツキンボック
スから取り出す場合の折損が避けられ、取出作業性を向
上させることができる利点を有している。しかし、比較
的可撓性に劣る性質を有している炭素ａｍを真直状態で
膨張黒鉛テープの少なくとも片面の幅方向全域に接着し
ているため、うず巻き状の巻回曲率の小さい小径パツキ
ンを製造する場合の巻回作業が困難である問題点を有し
ている。Furthermore, in the conventional packing described in item (■) above, the brittleness of the expanded graphite tape can be compensated for by the use of multiple carbon fibers, so like the packing described in item (■) above, breakage can be avoided when the packing is removed from the packing box. It has the advantage of improving workability. However, because carbon am, which has relatively poor flexibility, is adhered in a straight state to the entire width of at least one side of the expanded graphite tape, a small diameter packing with a small spiral winding curvature is manufactured. However, there is a problem in that the winding operation is difficult.
また、前記■および■で述べたパツキンでは、膨張黒鉛
と比較して弾性度の低い金網や真直状態の炭素繊維を膨
張黒鉛テープの少なくとも片面の幅方向全域に添接また
は接着した複合構造になっているので、パツキンの弾性
度を低下させることになり、シール性を悪くしている。In addition, the packing described in (1) and (2) has a composite structure in which wire mesh or straight carbon fiber, which has a lower elasticity than expanded graphite, is attached or adhered to the entire width of at least one side of expanded graphite tape. This reduces the elasticity of the packing, making the sealing performance worse.
本発明はこのような事情に鑑みなされたもので、膨張黒
鉛の脆性を補ってパツキンボックスからの取出作業性の
容易化を図り、パツキン寸法が変ることによって生じる
製作上の煩わしさおよび可撓性の低下が避けられ、しか
も膨張黒鉛の保有している高弾性度が損なわれることな
く高い復元率を確保して、シール性の向上を図ることが
できる炭素繊維複合１膨張黒鉛パツキンおよびその製造
方法の提供を目的としている。The present invention was developed in view of the above circumstances, and aims to compensate for the brittleness of expanded graphite, facilitate the work of taking it out from the packing box, and eliminate the troublesome manufacturing process and flexibility caused by changing the packing dimensions. A carbon fiber composite single-expanded graphite packing that can avoid a decrease in the elasticity of the expanded graphite, secure a high recovery rate without impairing the high elasticity possessed by the expanded graphite, and improve sealing performance, and a method for producing the same. The purpose is to provide
［課題を解決するための手段］
前記目的を達成するために、本発明にかかる第１の発明
は、幅狭膨張黒鉛テープの表面を炭素繊維の織りもしく
は編組体で被覆した芯材が、うず巻き状に巻回して加圧
成形された膨張黒鉛テープ環状体の巻回層間に配置され
たものである。[Means for Solving the Problems] In order to achieve the above object, a first invention according to the present invention provides a method in which a core material in which the surface of a narrow expanded graphite tape is covered with a woven or braided body of carbon fibers is spirally wound. The expanded graphite tape is placed between the wound layers of an annular body of expanded graphite tape that has been wound and pressure-molded into a shape.
また、前記目的を達成するために、本発明にかかる第２
の発明は、幅狭膨張黒鉛テープの表面を炭素繊維の織り
もしくは編組体で被覆して芯材を製造する工程と、
この芯材の長手方向を膨張黒鉛テープの長手方向に対応
させて該膨張黒鉛テープの少なくとも片面に添接させる
工程と、
互いに添接している芯材と膨張黒鉛テープをうず巻き状
に巻回して、ｍ張黒鉛テープの巻回層間に芯材を介在さ
せた膨張黒鉛テープ環状体を形成する工程と、
この膨張黒鉛テープの環状体を型込めして加圧成形する
工程とからなるものである。In addition, in order to achieve the above object, the second aspect of the present invention
The invention consists of a step of manufacturing a core material by covering the surface of a narrow expanded graphite tape with a woven or braided carbon fiber, and a step of manufacturing a core material by making the longitudinal direction of the core material correspond to the longitudinal direction of the expanded graphite tape. A step of attaching the graphite tape to at least one side of the graphite tape, and winding the core material and the expanded graphite tape attached to each other in a spiral shape to form an annular expanded graphite tape in which the core material is interposed between the wound layers of the m-tension graphite tape. The process consists of a step of forming a body, and a step of pressing and molding the annular body of the expanded graphite tape.
［作用］
本発明にかかる炭素繊維複合膨張黒鉛パツキンによれば
、芯材の外層、つまり幅狭膨張黒鉛テーブの表面を被覆
している炭素繊維の織りもしくは編組体によって、膨張
黒鉛テープ環状体の脆性が補われる。[Function] According to the carbon fiber composite expanded graphite packing according to the present invention, the outer layer of the core material, that is, the carbon fiber woven or braided body covering the surface of the narrow expanded graphite tape, allows the expanded graphite tape annular body to be The fragility is compensated for.
また、寸法の異なるパツキンの製造に際して芯材の仕様
を変更する必要がない、しかも幅狭に切断した膨張黒鉛
テープを主体とした芯材の使用によって、１膨張黒鉛テ
一プ環状体の可撓性が向上し、弾性が損なわれない。In addition, there is no need to change the specifications of the core material when manufacturing packings with different dimensions.Furthermore, by using a core material mainly made of expanded graphite tape cut into narrow widths, the flexibility of a single expanded graphite tape annular body can be improved. Improved properties and no loss of elasticity.
また、本発明にかかる炭素繊維複合膨張黒鉛パツキンの
製造方法によれば、幅狭膨張黒鉛テープの表面を炭素ａ
ｍの織りもしくは編組体で被覆した芯材を、うず巻き状
に巻回して加圧成形された膨張黒鉛テープ環状体の巻回
層間に配置して、膨張黒鉛テープ環状体の脆性が補われ
、パツキンの寸法が変っても仕様の変更が必要でない芯
材を使用でき、しかも幅狭膨張黒鉛テープを主体とした
芯材の使用により、可撓性が向上し弾性の損なわれない
膨張黒鉛テープ環状体からなる炭素繊維複合膨張黒鉛パ
ツキンを容易に得ることができる。Further, according to the method for manufacturing a carbon fiber composite expanded graphite packing according to the present invention, the surface of the narrow expanded graphite tape is coated with carbon a
A core material coated with a woven or braided body of 500 mm is placed between the layers of an expanded graphite tape annular body which is spirally wound and pressure-formed, thereby compensating for the brittleness of the expanded graphite tape annular body. Expanded graphite tape annular body that can use a core material that does not require changes in specifications even if the dimensions of the expanded graphite tape changes, and by using a core material that is mainly made of narrow expanded graphite tape, flexibility is improved and elasticity is not impaired. A carbon fiber composite expanded graphite packing consisting of the following can be easily obtained.
［実施例］ 以下、本発明の実施例を図面に基づいて説明する。[Example] Embodiments of the present invention will be described below based on the drawings.
第１図は本発明にかかる炭素ｍ維複合膨張黒鉛パツキン
の一実施例の一部を断面にて示す斜視図であり、図にお
いて炭素繊維複合膨張黒鉛パツキン１は、うず巻き状に
巻回して所定の内径寸法Ｄ１、外径寸法Ｄ２および高さ
寸法りに加圧成形された膨張黒鉛テープ環状体１０と、
この膨張黒鉛テープ環状体１０の巻回層間に配置された
複数の芯材２０によって構成されている。FIG. 1 is a perspective view showing a part of an embodiment of the carbon m-fiber composite expanded graphite packing according to the present invention in cross section. an expanded graphite tape annular body 10 pressure-molded to have an inner diameter dimension D1, an outer diameter dimension D2, and a height dimension;
It is composed of a plurality of core members 20 arranged between the wound layers of the expanded graphite tape annular body 10.
膨張黒鉛テープ環状体１０は、その高さ寸法りよりも幾
分太き目の寸法を幅寸法とし、厚さが例えば０．３８ｍ
ｍの膨張黒鉛、多孔質ＰＴＦＥ 、バーミキュライトな
どのテープＩＯＡを所定の長さに切断してうず巻き状に
巻回したのち、後述の金型に型込めして加圧成形するこ
とによって製造される。The expanded graphite tape annular body 10 has a width that is slightly thicker than its height, and a thickness of, for example, 0.38 m.
It is manufactured by cutting a tape IOA made of expanded graphite, porous PTFE, vermiculite, or the like into a predetermined length, winding it in a spiral shape, and then placing it in a mold described later and press-molding it.
膨張黒鉛テープ環状体１０の巻回層間に配置される芯材
２０は、第２図に示すように、幅３１鳳×厚さ０．３８
ｍ−の膨張黒鉛、多孔質ＰＴＦＥ 、バーミキュライト
などのテープ２１を、例えば３枚重ね合せたものによっ
てなり、その表面を炭素繊維糸の八編みによってなる編
組体２２で被覆した構成になっている。As shown in FIG. 2, the core material 20 placed between the wound layers of the expanded graphite tape annular body 10 has a width of 31 mm and a thickness of 0.38 mm.
The tape 21 is made of, for example, three layers of tape 21 made of m-expanded graphite, porous PTFE, vermiculite, etc., and its surface is covered with a braided body 22 made of eight strands of carbon fiber yarn.
即ち、炭素繊維複合膨張黒鉛パツキンｌは、■第２図の
芯材２０を製造する。■この芯材２０の長手方向を、第
３図に示すように、膨張黒鉛テープＩＯＡの長手方向に
対応させて、その片面に所定の間隔を有して２つの添接
する。■膨張黒鉛テープＩＯＡと芯材２０をうず巻き状
に巻回して、膨張黒鉛テープＩＯＡの巻回層間に芯材２
０を介在させた膨張黒鉛テープ環状体１０を形成する（
第４図参照）、■膨張黒鉛テープ環状体１０を、第５図
に示すように、金型２の雌型２Ａ内に型込めしたのち雄
型２Ｂで型締めすることで加圧成形する０以上■ないし
■の工程によって製造される。That is, the carbon fiber composite expanded graphite packing 1 is used to manufacture the core material 20 shown in FIG. (2) As shown in FIG. 3, the longitudinal direction of this core material 20 corresponds to the longitudinal direction of the expanded graphite tape IOA, and two pieces are attached to one side of the expanded graphite tape IOA at a predetermined interval. ■The expanded graphite tape IOA and the core material 20 are wound in a spiral shape, and the core material 20 is placed between the wound layers of the expanded graphite tape IOA.
Form an annular body 10 of expanded graphite tape with 0 interposed (
(See Fig. 4), ■ The expanded graphite tape annular body 10 is pressed into the female die 2A of the mold 2 and then clamped with the male die 2B as shown in Fig. 5. Manufactured by the above steps ① to ②.
前記構成によれば、膨張黒鉛テープ環状体１０の脆性は
、その巻回層間に配置されている芯材２０の表面を被覆
している炭素繊維糸の八編みによってなる編組体２２に
よって補われる。したがって、この炭素繊維複合膨張黒
鉛パツキン１の円周方向の１箇所を切断した非無端状態
でパツキンボックス（図示せず）に装入してグランドパ
ツキンとして使用した場合、例えば保守点検時において
引掛は工具によって引掛けて引き出しても、パツキンｌ
が折損する不都合を回避できるので、パツキンｌの取出
しが容易になり、取出作業性が向上する。According to the above configuration, the brittleness of the expanded graphite tape annular body 10 is compensated for by the braided body 22 formed by eight braids of carbon fiber yarns covering the surface of the core material 20 disposed between the wound layers thereof. Therefore, if this carbon fiber composite expanded graphite packing 1 is cut at one point in the circumferential direction and placed in a non-endless state in a packing box (not shown) and used as a ground packing, there will be no catch during maintenance and inspection, for example. Even if you hook it with a tool and pull it out, it will not come out easily.
Since it is possible to avoid the inconvenience of the packing L being broken, it becomes easier to take out the packing L, and the workability of taking out the packing L is improved.
また、寸法の異なるパツキンを製造する場合でも、芯材
２０の仕様を変更することなく、単に使用数量を変える
だけでよいから製作上の煩わしさが著しく軽減される。Furthermore, even when manufacturing packings with different dimensions, it is sufficient to simply change the quantity used without changing the specifications of the core material 20, which greatly reduces the complexity of manufacturing.
しかも、膨張黒鉛テープは、これを５層温以下の幅狭に
切断することで、引張強さと可撓性が向上する特性を有
しているから、幅狭に切断した膨張黒鉛テープ２１を主
体とした芯材２０の使用によって、膨張黒鉛テープ環状
体１０の可撓性が向上するため、巻回曲率の小さい小径
パツキンを製造する場合の巻回作業が容易になり、汎用
性が向上する。このことは炭素繊維糸のへ瑚み編組体２
２によっても助長される。Moreover, the expanded graphite tape has the property that its tensile strength and flexibility can be improved by cutting it into narrow widths below the 5th layer temperature, so the expanded graphite tape 21 cut into narrow widths is The use of the core material 20 improves the flexibility of the expanded graphite tape annular body 10, which facilitates the winding operation when producing small-diameter packing with a small winding curvature, and improves versatility. This means that the braided body 2 of carbon fiber yarn is
It is also encouraged by 2.
さらに、幅狭に切断した膨張黒鉛テープ２１を主体とし
た芯材２０を使用しているから、つまり膨張黒鉛テープ
ＩＯＡと略同質の芯材２０を使用しているから、膨張黒
鉛テープ環状体１０の弾性が損なわれず、高い復元性を
確保できるので、シール性が向上する。勿論、芯材２０
は可撓性のものであるから、廃棄処分のための焼却が容
易である。Furthermore, since the core material 20 is mainly composed of the expanded graphite tape 21 cut into narrow widths, that is, the core material 20 is of substantially the same quality as the expanded graphite tape IOA, so the expanded graphite tape annular body 10 Since the elasticity of the material is not impaired and high resilience can be ensured, sealing performance is improved. Of course, core material 20
Since it is flexible, it can be easily incinerated for disposal.
第６図に、本発明にかかる炭素繊維複合膨張黒鉛パツキ
ン１と従来の膨張黒鉛パツキン（前記に相当する）との
圧縮−復元特性比較グラフを示す０図において、本発明
品の復元率が約５０％であるのに対し、従来品では約３
０％程度にしか達しない、これにより、本発明品では高
いシール性を得られることが判る。FIG. 6 shows a compression-recovery characteristic comparison graph between the carbon fiber composite expanded graphite packing 1 according to the present invention and a conventional expanded graphite packing (corresponding to the above). 50%, whereas with conventional products it is approximately 3%.
It reaches only about 0%, which shows that the product of the present invention can obtain high sealing performance.
なお、前記実施では、芯材２０を膨張黒鉛テープＩＯＡ
の片面に添接して説明しているが１両面に添接した構成
であってもよい、また、添接の数も２つにのみ限定され
るものではなく、膨張黒鉛テープＩＯＡの幅寸法に応じ
て、１つまたは３つ以上の数を選択して添接すればよい
。さらに炭素繊維糸の編組体２２に代えて、炭素ｍ維の
織りによって幅狭膨張黒鉛を被覆しても、前記実施例と
同様の作用効果を奏する。In the above implementation, the core material 20 is an expanded graphite tape IOA.
Although the explanation is given in which the expanded graphite tape is attached to one side of the tape, it may be attached to both sides.The number of attachments is not limited to only two, and the width dimension of the expanded graphite tape IOA Depending on the situation, one or three or more may be selected and attached. Furthermore, in place of the braided body 22 of carbon fiber threads, even if the narrow expanded graphite is covered with a weave of carbon m-fibers, the same effects as in the embodiment described above can be obtained.
［発明の効果］
本発明は、以上のように構成されているので、以下に記
載されるような効果を奏する。[Effects of the Invention] Since the present invention is configured as described above, it has the following effects.
請求項（１）の炭素繊維複合膨張黒鉛パツキンにおいて
は、芯材の外層、つまり幅狭膨張黒鉛テープの表面を被
覆している炭素繊維の織りもしくはｍ組体によって、膨
張黒鉛テープ環状体の脆性が補われるので、取出作業性
が向上する。In the carbon fiber composite expanded graphite packing of claim (1), the brittleness of the expanded graphite tape annular body is reduced by the carbon fiber weave or m-assembly covering the outer layer of the core material, that is, the surface of the narrow expanded graphite tape. is compensated for, improving the workability of taking out.
また、寸法の異なるパツキンの製造に際して芯材の仕様
を変更する必要がないので、製作−ヒの煩わしさを著し
く制限することができる。しかも幅狭に切断した膨張黒
鉛テープを主体とした芯材の使用によって、膨張黒鉛テ
ープ環状体の可撓性が向上するので、巻回曲率の小さい
小径パツキンを製造する場合でも巻回作業が容易になり
、汎用性を向上させることができる。さらに膨張黒鉛テ
ープ環状体の弾性が損なわれないので、高い復元性を確
保して、シール性の向上を図ることができる。Furthermore, since there is no need to change the specifications of the core material when manufacturing packings with different dimensions, the complexity of manufacturing can be significantly reduced. Moreover, by using a core material mainly made of expanded graphite tape cut into narrow widths, the flexibility of the expanded graphite tape annular body is improved, making the winding work easier even when manufacturing small-diameter packing with a small winding curvature. This can improve versatility. Furthermore, since the elasticity of the expanded graphite tape annular body is not impaired, high restorability can be ensured and sealing performance can be improved.
また、請求項（２）の炭素繊維複合膨張黒鉛パツキンの
製造方法によれば、幅狭膨張黒鉛テープの表面を炭素ｍ
ｍの織りもしくは編組体で被覆した芯材を、うず巻き状
に巻回して加圧成形された膨張黒鉛テープ環状体の巻回
層間に配置して、膨張黒鉛テープ環状体の脆性が補われ
、パツキンの寸法が変っても仕様変更の不必要な芯材を
使用でき、しかも幅狭膨張黒鉛テープを主体とした芯材
の使用により、可撓性が向上し弾性の損なわれない膨張
黒鉛テープ環状体からなる炭素繊維複合膨張黒鉛パツキ
ン、すなわちパツキンボックスからの取出作業性にすぐ
れ、製作上の煩わしさが著しく軽減され、しかも、巻回
作業が容易で、高いシール性を有する炭素繊維複合膨張
黒鉛パツキンを容易に製造することができる。Further, according to the method for manufacturing a carbon fiber composite expanded graphite packing of claim (2), the surface of the narrow expanded graphite tape is coated with carbon m
A core material coated with a woven or braided body of 500 mm is placed between the layers of an expanded graphite tape annular body which is spirally wound and pressure-formed, thereby compensating for the brittleness of the expanded graphite tape annular body. Expanded graphite tape annular body that can use a core material that does not require specification changes even if the dimensions of the expandable graphite tape changes.Furthermore, by using a core material that is mainly made of narrow expanded graphite tape, flexibility is improved and elasticity is not compromised. A carbon fiber composite expanded graphite packing consisting of a carbon fiber composite expanded graphite packing that is easy to take out from a packing box, significantly reduces the hassle of manufacturing, is easy to wind, and has high sealing properties. can be easily manufactured.
第１図は本発明にかかる炭素ａｍ複合膨張黒鉛パツキン
の一実施例の一部を断面にて示す斜視図、第２図は芯材
の一実施例を示す斜視図、第３図は膨張黒鉛テープに芯
材を添接させた状態の一例を示す斜視図、第４図は膨張
黒鉛テープ環状体の縦断面図、第５図は加圧成形状態の
説明断面図、第６図は圧縮−復元特性の比較グラフであ
る。
ｌ・・・炭素繊維複合膨張黒鉛パツキン２・・・金型
１０・・・膨張黒鉛テープ環状体
１０Ａ・・・膨張黒鉛テープ
２０・・・芯材
２１・・・幅狭膨張黒鉛テープ
２２・・・炭素ｉａ！ｌｌの編組体
特許出願人 日本ビラーエ業株式会社代理人 弁理士
鈴 江 孝 −
図
Ｎ
塘
図
Ｃつ
軸Fig. 1 is a perspective view showing a part of an embodiment of the carbon-am composite expanded graphite packing according to the present invention in cross section, Fig. 2 is a perspective view showing an embodiment of the core material, and Fig. 3 is an expanded graphite packing. A perspective view showing an example of a state in which a core material is attached to a tape, FIG. 4 is a longitudinal cross-sectional view of an annular expanded graphite tape, FIG. It is a comparison graph of restoration characteristics. l... Carbon fiber composite expanded graphite packing 2... Mold 10... Expanded graphite tape annular body 10A... Expanded graphite tape 20... Core material 21... Narrow expanded graphite tape 22...・Carbon ia! Patent applicant for the braided body of ll Nippon Virae Gyo Co., Ltd. Agent Patent attorney Takashi Suzue - Figure N Tong Figure C axis
Claims (2)
くは編組体で被覆した芯材が、うず巻き状に巻回して加
圧成形された膨張黒鉛テープ環状体の巻回層間に配置さ
れていることを特徴とする炭素繊維複合膨張黒鉛パッキ
ン。(1) A core material in which the surface of a narrow expanded graphite tape is covered with a woven or braided carbon fiber body is placed between the wound layers of an annular expanded graphite tape that is spirally wound and pressure molded. A carbon fiber composite expanded graphite packing characterized by:
くは編組体で被覆して芯材を製造する工程と、 この芯材の長手方向を膨張黒鉛テープの長手方向に対応
させて該膨張黒鉛テープの少なくとも片面に添接させる
工程と、 互いに添接している芯材と膨張黒鉛テープをうず巻き状
に巻回して、膨張黒鉛テープの巻回層間に芯材を介在さ
せた膨張黒鉛テープ環状体を形成する工程と、 この膨張黒鉛テープの環状体を型込めして加圧成形する
工程とからなることを特徴とする炭素繊維複合膨張黒鉛
パッキンの製造方法。(2) A step of manufacturing a core material by covering the surface of a narrow expanded graphite tape with a woven or braided body of carbon fiber; A step of adhering the tape to at least one side, and winding the core material and the expanded graphite tape that are attached to each other in a spiral shape to form an annular expanded graphite tape in which the core material is interposed between the wound layers of the expanded graphite tape. A method for producing a carbon fiber composite expanded graphite packing comprising the steps of: forming a carbon fiber composite expanded graphite packing; and pressing and molding an annular body of the expanded graphite tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1135644A JPH03788A (en) | 1989-05-29 | 1989-05-29 | Carbon fiber/expanded graphite composite packing and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1135644A JPH03788A (en) | 1989-05-29 | 1989-05-29 | Carbon fiber/expanded graphite composite packing and its manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03788A true JPH03788A (en) | 1991-01-07 |
| JPH0575794B2 JPH0575794B2 (en) | 1993-10-21 |
Family
ID=15156624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1135644A Granted JPH03788A (en) | 1989-05-29 | 1989-05-29 | Carbon fiber/expanded graphite composite packing and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03788A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06279753A (en) * | 1993-03-26 | 1994-10-04 | Nippon Pillar Packing Co Ltd | Packing material |
| CN1038844C (en) * | 1993-04-05 | 1998-06-24 | 日本皮拉工业株式会社 | Sealing filler |
| US7942637B2 (en) | 2008-12-11 | 2011-05-17 | General Electric Company | Sparcap for wind turbine rotor blade and method of fabricating wind turbine rotor blade |
| CN113015870A (en) * | 2018-11-15 | 2021-06-22 | 日本皮拉工业株式会社 | Gland sealing piece and sealing piece structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52133352U (en) * | 1976-04-06 | 1977-10-11 | ||
| JPS6385643U (en) * | 1986-11-25 | 1988-06-04 |
-
1989
- 1989-05-29 JP JP1135644A patent/JPH03788A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52133352U (en) * | 1976-04-06 | 1977-10-11 | ||
| JPS6385643U (en) * | 1986-11-25 | 1988-06-04 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06279753A (en) * | 1993-03-26 | 1994-10-04 | Nippon Pillar Packing Co Ltd | Packing material |
| CN1038844C (en) * | 1993-04-05 | 1998-06-24 | 日本皮拉工业株式会社 | Sealing filler |
| US7942637B2 (en) | 2008-12-11 | 2011-05-17 | General Electric Company | Sparcap for wind turbine rotor blade and method of fabricating wind turbine rotor blade |
| CN113015870A (en) * | 2018-11-15 | 2021-06-22 | 日本皮拉工业株式会社 | Gland sealing piece and sealing piece structure |
| EP3882496A4 (en) * | 2018-11-15 | 2022-07-27 | Nippon Pillar Packing Co., Ltd. | Gland packing and packing structure |
| CN113015870B (en) * | 2018-11-15 | 2023-09-08 | 日本皮拉工业株式会社 | Gland sealing piece and sealing piece structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0575794B2 (en) | 1993-10-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4705722A (en) | Gland packing | |
| US8297624B2 (en) | Packing | |
| US5549306A (en) | Knitting yarn for gland packing and gland packing made of said knitting yarn | |
| US2562262A (en) | Packing | |
| JP2002129440A (en) | Packing material comprising expanded graphite and gland packing made of the material and method for producing the gland packing | |
| JPH03249482A (en) | Packing and manufacture thereof | |
| JPH03788A (en) | Carbon fiber/expanded graphite composite packing and its manufacture | |
| JPH04228974A (en) | Knitted packing wire rod for packing package | |
| EP2216569B1 (en) | Hybrid seals | |
| EP0466923A1 (en) | Packing | |
| JP2762184B2 (en) | Packing material and seal member using the same | |
| JPS63308275A (en) | Packing | |
| CN109263088B (en) | Integrated forming method of porous composite material | |
| JPS6084476A (en) | Braided packing and preparation thereof | |
| JP3399913B2 (en) | Seal ring | |
| JPS5936147B2 (en) | Manufacturing method for molded packing that is easy to take out | |
| JPH0425670A (en) | Ring packing and manufacture thereof | |
| JP2530533B2 (en) | Mold packing and manufacturing method thereof | |
| KR100437131B1 (en) | Seal ring | |
| JP3101916B2 (en) | Packing | |
| JP4210499B2 (en) | Gland packing material and gland packing | |
| JPH046234B2 (en) | ||
| JPH09280379A (en) | Knitting yarn for packing and packing | |
| JPH04245942A (en) | Expanded graphite braided body and production thereof | |
| JPH079265B2 (en) | Gland packing material |