JPH0723748B2 - Sealing member - Google Patents
Sealing memberInfo
- Publication number
- JPH0723748B2 JPH0723748B2 JP62136496A JP13649687A JPH0723748B2 JP H0723748 B2 JPH0723748 B2 JP H0723748B2 JP 62136496 A JP62136496 A JP 62136496A JP 13649687 A JP13649687 A JP 13649687A JP H0723748 B2 JPH0723748 B2 JP H0723748B2
- Authority
- JP
- Japan
- Prior art keywords
- tape
- sealing member
- fiber
- reinforcing
- shaped sealing
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims description 25
- 239000003566 sealing material Substances 0.000 claims description 28
- 238000009958 sewing Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 239000012783 reinforcing fiber Substances 0.000 claims description 7
- 239000012779 reinforcing material Substances 0.000 description 21
- 239000000835 fiber Substances 0.000 description 15
- 238000012856 packing Methods 0.000 description 12
- 229920000049 Carbon (fiber) Polymers 0.000 description 7
- 239000004917 carbon fiber Substances 0.000 description 7
- 239000003365 glass fiber Substances 0.000 description 7
- 210000004907 gland Anatomy 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000013013 elastic material Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 239000002241 glass-ceramic Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010445 mica Substances 0.000 description 3
- 229910052618 mica group Inorganic materials 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 210000004177 elastic tissue Anatomy 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明はグランドパッキンおよび各種のガスケットに好
適な密封部材に関する。The present invention relates to a gland packing and a sealing member suitable for various gaskets.
（従来の技術） 膨張黒鉛，マイカー，バーミュキライト，多孔質PTFE等
によってなるテープ状シール材は、可橈性，耐熱性およ
び耐食性にすぐれている上、圧縮復元性にすぐれてお
り、高温，高圧用グランドパッキンやガスケット等の密
封部材として好ましい特性を備えている。(Prior art) Tape-like sealing materials made of expanded graphite, mica, vermukilite, porous PTFE, etc. are excellent in flexibility, heat resistance and corrosion resistance, as well as in compression recovery and high temperature. , It has desirable characteristics as a sealing member such as high-voltage gland packing and gasket.
しかし、剛性が低く脆いために、変形破損し易く、成形
性に劣る等の欠点がある。However, since it has low rigidity and is fragile, it is liable to be deformed and damaged and has poor moldability.
（発明が解決しようとする問題点） そこで、従来、第７図に示すように膨張黒鉛，マイカ
ー，バーミュキライト，多孔質PTFE等によってなるテー
プ状シール材Ａに網状の補強材Ｂを重ね合せて加圧成形
した密封部材Ｃ、第８図に示すように、前記テープ状シ
ール材Ａに線状の補強材Ｂを複数重ね合せて加圧成形し
た密封部材Ｃ、第９図に示すように、２枚のテープ状シ
ール材A,Aの間に例えば網状の補強材Ｂを介在させて加
圧成形した密封部材Ｃおよび第10図に示すように前記テ
ープ状シール材Ａに線状の補強部材Ｂを螺旋状に巻付け
た密封部材Ｃ等が提供されている。(Problems to be solved by the invention) Therefore, conventionally, as shown in FIG. 7, a net-like reinforcing material B is superposed on a tape-like sealing material A made of expanded graphite, mica, vermukilite, porous PTFE or the like. As shown in FIG. 8, a sealing member C is also formed by pressing together, and as shown in FIG. 8, a sealing member C is made by stacking a plurality of linear reinforcing materials B on the tape-shaped sealing material A and pressing. In addition, for example, a sealing member C pressure-molded by interposing a mesh-like reinforcing material B between the two tape-shaped sealing materials A and A and a linear member on the tape-shaped sealing material A as shown in FIG. A sealing member C or the like in which a reinforcing member B is spirally wound is provided.
しかし、この種従来の密封部材Ｃでは、補強材Ｂとし
て、高弾性材である例えば炭素繊維，ガラス繊維，セラ
ミック繊維等を用いて剛性を高め、この剛性が高められ
た密封部材Ｃをうず巻き状に巻回したのち、環状に加圧
成形して、例えばグランドパッキンを製造しようとして
も、補強材Ｂとして用いた前述の繊維は、加圧成形によ
って塑性変形されないため、テープ状シール材Ａに対し
て所要の接合強度を得ることができない。したがって、
形状保持効果が低く実用に適さないため、補強材Ｂとし
て使用できる素材は、加圧成形によって容易に塑性変形
する低弾性繊維、例えば金属繊維に制約される。However, in the conventional sealing member C of this type, the reinforcing member B is made of a highly elastic material such as carbon fiber, glass fiber, or ceramic fiber to increase the rigidity, and the sealing member C having the increased rigidity is wound. Even if an attempt is made to manufacture, for example, a gland packing after being wound in a circular shape by pressure molding, the above-mentioned fibers used as the reinforcing material B are not plastically deformed by the pressure molding, and therefore the tape-shaped sealing material A is not deformed. Therefore, the required bonding strength cannot be obtained. Therefore,
The material that can be used as the reinforcing material B is limited to a low elastic fiber that is easily plastically deformed by pressure molding, for example, a metal fiber because the shape retaining effect is low and it is not suitable for practical use.
本発明は、このような事情に鑑みなされたもので、例え
ば炭素繊維，ガラス繊維，セラミックス繊維等の高弾性
繊維を補強材として用いても、テープ状シール材に対し
て所要の接合強度が確保され、形状保持効果を上げるこ
とで、所望の形状に加圧成形することが可能な密封部材
を提供することを目的とする。The present invention has been made in view of the above circumstances, and secures a required bonding strength to a tape-shaped sealing material even if a highly elastic fiber such as carbon fiber, glass fiber, or ceramic fiber is used as a reinforcing material. It is an object of the present invention to provide a sealing member that can be pressure-molded into a desired shape by improving the shape-retaining effect.
（問題点を解決するための手段） 上記目的を達成するために、本発明に係る密封部材は、
テープ状シール材の外面に補強繊維材が配置され、この
補強繊維材が縫糸により前記テープ状シール材に縫着さ
れているものである。(Means for Solving Problems) In order to achieve the above object, the sealing member according to the present invention is
A reinforcing fiber material is arranged on the outer surface of the tape-shaped sealing material, and the reinforcing fiber material is sewn to the tape-shaped sealing material with a sewing thread.
（作用） 本発明によれば、テープ状シール材の外面に配置された
補強繊維材が縫糸によってテープ状シール材に縫着され
ているので、補強繊維材として、例えば炭素繊維、ガラ
ス繊維、セラミックス繊維などの高弾性材を用いても、
例えば環状などの所望の形状に容易に加圧成形すること
が可能となり、テープ状シール材に対する接合強度が大
幅に向上することと相俟って、高いシール性を発揮させ
ることができる。(Operation) According to the present invention, since the reinforcing fiber material arranged on the outer surface of the tape-shaped sealing material is sewn to the tape-shaped sealing material with a sewing thread, examples of the reinforcing fiber material include carbon fiber, glass fiber, ceramics Even if you use high elastic material such as fiber,
For example, it becomes possible to easily perform pressure molding into a desired shape such as an annular shape, and in combination with a great improvement in the bonding strength to the tape-shaped sealing material, it is possible to exert a high sealing property.
（実施例） 第１図は本発明に係る密封部材の一実施例を示す一部斜
視図、第２図は第１図におけるII-II線に沿う拡大縦断
側面図であり、これらの図において、密封部材１は、テ
ープ状シール材２、補強材３および縫糸４によって構成
されている。(Embodiment) FIG. 1 is a partial perspective view showing an embodiment of a sealing member according to the present invention, and FIG. 2 is an enlarged vertical side view taken along the line II-II in FIG. The sealing member 1 is composed of a tape-shaped sealing material 2, a reinforcing material 3 and a sewing thread 4.
テープ状シール材２は膨張黒鉛，マイカー，バーミュキ
ライト，多孔質PTFE等の可橈性，耐熱性，耐食性および
圧縮復元性にすぐれた特性をもつ材料によって形成され
ている。そしてこのテープ状シール材２の裏面に該テー
プ状シール材２の長手方向に沿い、かつ幅方向に適当な
間隔を有して複数（例えば３本）の補強材３が下糸とし
て配置されている。この補強材３は炭素繊維、ガラス繊
維，セラミックス繊維等の高弾性材によってなり、この
下糸としての補強材３を、上糸としてのステンレス鋼線
等の金属繊維よりなる縫糸４によって、工業用ミシンを
用いて縫着してある。このように、補強材３を縫糸４に
よってテープ状シール材２に縫着することで、補強材３
のテープ状シール材２に対する接合強度が著しく向上す
る。したがって、密封部材１を例えばうず巻状に巻回し
たのち、環状に加圧成形した場合、大きい接合強度によ
って、補強材３をテープ状シール材２から離脱させるこ
となく近似的に塑性変形させることができると共に、で
きた密封部材１は形状保持効果が高く、例えば高温高圧
用のグランドパッキンとして好適となる。The tape-shaped sealing material 2 is made of a material having excellent flexibility, heat resistance, corrosion resistance and compression recovery such as expanded graphite, mica, vermukilite, and porous PTFE. On the back surface of the tape-shaped sealing material 2, a plurality of (for example, three) reinforcing materials 3 are arranged as bobbin threads along the longitudinal direction of the tape-shaped sealing material 2 and at appropriate intervals in the width direction. There is. The reinforcing material 3 is made of a highly elastic material such as carbon fiber, glass fiber, or ceramic fiber, and the reinforcing material 3 as the lower thread is used by a sewing thread 4 made of metal fiber such as stainless steel wire as the upper thread for industrial use. It is sewn using a sewing machine. In this way, the reinforcing material 3 is sewn to the tape-shaped sealing material 2 with the sewing thread 4, so that the reinforcing material 3
The bonding strength with respect to the tape-shaped sealing material 2 is remarkably improved. Therefore, when the sealing member 1 is wound, for example, in a spiral shape and then pressure-molded in an annular shape, the reinforcing material 3 is approximately plastically deformed without being separated from the tape-shaped sealing material 2 due to the large bonding strength. At the same time, the resulting sealing member 1 has a high shape-retaining effect and is suitable as a gland packing for high temperature and high pressure.
第３図は他の実施例を示し、この実施例では下糸として
の補強材３および上糸としての縫糸４をそれぞれステン
レス鋼線等の金属繊維によって形成し、工業用ミシンを
用いてテープ状シール材２の長手方向に蛇行状に縫着し
て密封部材１を構成している。この場合、前記第１実施
例と同様に、高い接合強度を得ることができる上、補強
材３が金属繊維であるために、その弾性値が第１実施例
で述べた補強材３よりも小さく、塑性変形が容易である
から、第４図に示すように小径の環状パッキンP1を加圧
成形することができる。FIG. 3 shows another embodiment. In this embodiment, the reinforcing material 3 as the lower thread and the sewing thread 4 as the upper thread are each formed of metal fibers such as stainless steel wire and are tape-shaped using an industrial sewing machine. The sealing member 2 is sewn in a meandering manner in the longitudinal direction to form the sealing member 1. In this case, similar to the first embodiment, a high bonding strength can be obtained, and since the reinforcing material 3 is a metal fiber, its elastic value is smaller than that of the reinforcing material 3 described in the first embodiment. Since the plastic deformation is easy, the small-diameter annular packing P 1 can be pressure-molded as shown in FIG.
また、第５図はさらに他の実施例を示し、この実施例で
は炭素繊維，ガラス繊維，セラミックス繊維等の高弾性
材によってなる補強材３をテープ状シール材２の両側端
面に沿って配置し、ステンレス鋼線等の金属繊維よりな
る縫糸４によって、工業用ミシンを用いてふちかがりさ
れている。このような構成であっても補強材３のテープ
状シール材２に対する接合強度が高められるので、例え
ばうず巻状に巻回したのち、環状に加圧成形すること
で、第６図に示す環状パッキンP2を得ることができる。
特に、この第３実施例の環状パッキンP2では、使用時に
おけるパッキン端面のはみ出し変形を防止してシール性
を高めることができる。Further, FIG. 5 shows still another embodiment. In this embodiment, a reinforcing material 3 made of a highly elastic material such as carbon fiber, glass fiber, ceramic fiber is arranged along both end surfaces of the tape-shaped sealing material 2. A sewing thread 4 made of a metal fiber such as stainless steel wire is used to stitch an industrial sewing machine. Even with such a configuration, the joining strength of the reinforcing material 3 to the tape-shaped sealing material 2 is enhanced, and therefore, for example, by winding the material in a spiral shape and then press-molding it in an annular shape, the annular shape shown in FIG. The packing P 2 can be obtained.
Particularly, in the annular packing P 2 of the third embodiment, it is possible to prevent the end face of the packing from deforming when it is in use, thereby improving the sealing property.
尚、前記各実施例では補強材３として、炭素繊維，ガラ
ス繊維，セラミック繊維，金属繊維等を用いて説明して
いるが、これらの繊維の他にアラミド繊維のような合成
繊維を補強材３として用いることができる。Although carbon fibers, glass fibers, ceramic fibers, metal fibers, etc. are used as the reinforcing material 3 in the above-described embodiments, synthetic fibers such as aramid fiber are used as the reinforcing material 3 in addition to these fibers. Can be used as
（発明の効果） 以上のように、本発明によれば、テープ状シール材の外
面に配置された補強繊維材を縫糸によってテープ状シー
ル材に縫着する構成としたので、テープ状シール材が有
する可橈性、耐熱性、耐食性および圧縮復元性等の優れ
た特性を損なうことなく、剛性を向上して使用時の締付
力に起因する変形破損を防止することができるのはもと
より、補強繊維材として、例えば炭素繊維、ガラス繊
維、セラミックス繊維などの高弾性材を用いた場合であ
っても、例えばグランドパッキンを製造するために環状
に加圧成形するなど所望の形状に加圧成形することが容
易で、テープ状シール材に対する接合強度を大幅に向上
することができる。したがって、グランドパッキンやガ
スケットなどの形状保持効果を高くして、全体としてシ
ール性の著しい向上を達成することができる。さらに、
接着剤を用いていないので、高温時における加熱減量も
ほとんどなく、高温、高圧条件下でも高いシール性を発
揮させることができるという効果を奏する。(Effect of the invention) As described above, according to the present invention, since the reinforcing fiber material arranged on the outer surface of the tape-shaped sealing material is sewn to the tape-shaped sealing material with a sewing thread, the tape-shaped sealing material is Reinforcement, in addition to being able to improve rigidity and prevent deformation and damage due to tightening force during use, without impairing its excellent properties such as flexibility, heat resistance, corrosion resistance and compression recovery Even if a highly elastic material such as carbon fiber, glass fiber, or ceramic fiber is used as the fibrous material, it is pressed into a desired shape, for example, it is press-formed into an annular shape to produce a gland packing. That is, the bonding strength to the tape-shaped sealing material can be greatly improved. Therefore, the shape-retaining effect of the gland packing, the gasket, etc. can be enhanced, and the sealability as a whole can be significantly improved. further,
Since no adhesive is used, there is almost no loss on heating at high temperatures, and the high sealing performance can be achieved even under high temperature and high pressure conditions.
第１図は本発明に係る密封部材の一実施例を示す一部斜
視図、第２図は第１図のII-II線に沿う拡大縦断側面
図、第３図は他の実施例を示す一部斜視図、第４図は第
３図の密封部材によって加圧成形されたパッキンの一例
を示す一部斜視図、第５図はさらに他の実施例を示す一
部斜視図、第６図は第５図の密封部材によって加圧成形
されたパッキンの一例を示す一部斜視図、第７図ないし
第10図はそれぞれ従来例の一部斜視図である。 １……密封部材 ２……テープ状のシール材 ３……補強材 ４……縫糸1 is a partial perspective view showing an embodiment of a sealing member according to the present invention, FIG. 2 is an enlarged vertical side view taken along the line II-II of FIG. 1, and FIG. 3 shows another embodiment. Partial perspective view, FIG. 4 is a partial perspective view showing an example of packing molded by the sealing member of FIG. 3, and FIG. 5 is a partial perspective view showing still another embodiment. FIG. 7 is a partial perspective view showing an example of packing which is pressure-molded by the sealing member of FIG. 5, and FIGS. 7 to 10 are partial perspective views of a conventional example. 1 ... Sealing member 2 ... Tape-like sealing material 3 ... Reinforcing material 4 ... Sewing thread
Claims (1)
置され、この補強繊維材が縫糸により前記テープ状シー
ル材に縫着されていることを特徴とする密封部材。1. A sealing member, wherein a reinforcing fiber material is arranged on an outer surface of a tape-shaped sealing material, and the reinforcing fiber material is sewn to the tape-shaped sealing material with a sewing thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62136496A JPH0723748B2 (en) | 1987-05-29 | 1987-05-29 | Sealing member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62136496A JPH0723748B2 (en) | 1987-05-29 | 1987-05-29 | Sealing member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63297871A JPS63297871A (en) | 1988-12-05 |
| JPH0723748B2 true JPH0723748B2 (en) | 1995-03-15 |
Family
ID=15176522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62136496A Expired - Lifetime JPH0723748B2 (en) | 1987-05-29 | 1987-05-29 | Sealing member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0723748B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386616B (en) * | 2018-12-19 | 2020-07-10 | 中国科学院长春应用化学研究所 | Multistage structure static ring for dynamic seal of ship stern shaft |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51101661A (en) * | 1975-03-01 | 1976-09-08 | Nippon Pillar Packing | CHUJOPATSUKIN |
| JPS60260332A (en) * | 1984-06-08 | 1985-12-23 | ニチアス株式会社 | Braided packing containing core and manufacture thereof |
-
1987
- 1987-05-29 JP JP62136496A patent/JPH0723748B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63297871A (en) | 1988-12-05 |
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