JPH0242872B2 - - Google Patents
Info
- Publication number
- JPH0242872B2 JPH0242872B2 JP57091919A JP9191982A JPH0242872B2 JP H0242872 B2 JPH0242872 B2 JP H0242872B2 JP 57091919 A JP57091919 A JP 57091919A JP 9191982 A JP9191982 A JP 9191982A JP H0242872 B2 JPH0242872 B2 JP H0242872B2
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- fiber
- paper
- packing
- aromatic polyamide
- 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
- 239000000835 fiber Substances 0.000 claims description 27
- 238000012856 packing Methods 0.000 claims description 17
- 239000004760 aramid Substances 0.000 claims description 9
- 229920003235 aromatic polyamide Polymers 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 239000002657 fibrous material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 9
- 239000010425 asbestos Substances 0.000 description 7
- 229910052895 riebeckite Inorganic materials 0.000 description 7
- 210000004907 gland Anatomy 0.000 description 6
- 230000014759 maintenance of location Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000010009 beating Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 201000010001 Silicosis Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- UMVBXBACMIOFDO-UHFFFAOYSA-N [N].[Si] Chemical compound [N].[Si] UMVBXBACMIOFDO-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 206010061592 cardiac fibrillation Diseases 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002600 fibrillogenic effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
- F16J15/20—Packing materials therefor
- F16J15/22—Packing materials therefor shaped as strands, ropes, threads, ribbons, or the like
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Sealing Material Composition (AREA)
Description
【発明の詳細な説明】
(イ) 発明の分野
この発明はシール性の良好なグランドパツキン
に関する。[Detailed Description of the Invention] (a) Field of the Invention This invention relates to a gland packing with good sealing performance.
(ロ) 従来技術
従来、グランドパツキンとしては、主としてア
スベスト繊維が用いられている。(b) Prior Art Conventionally, asbestos fibers have been mainly used for ground packing.
これは、アスベスト繊維は繊維が細く柔軟であ
ると共に、油分の保持性が良く、従つてパツキン
として使用する際にシール性が良いためである。 This is because asbestos fibers are thin and flexible, have good oil retention properties, and therefore have good sealing properties when used as packing.
(ハ) 従来技術の問題点
しかし乍ら、アスベストには硅肺を起し易いと
いう問題があり、アスベスト繊維以外の天然又は
合成繊維を原料とすることが考えられている。(c) Problems with the prior art However, asbestos has the problem of being susceptible to silicosis, and it is being considered to use natural or synthetic fibers other than asbestos fibers as raw materials.
しかし乍ら、これらの繊維は、アスベストのモ
ノフイラメントの径が0.02〜0.03（単位μｍ、以
下同じ）と細いのに対し、木綿10〜45、麻25、羊
毛20〜25、炭素繊維７〜20と非常に太く、そのた
め柔軟性、油分の保持性に問題があり、シール性
が不充分であつた。 However, while the monofilament of asbestos has a diameter of 0.02 to 0.03 (unit: μm, the same applies hereinafter), these fibers have a diameter of 10 to 45 mm, cotton 10 to 45 mm, linen 25 mm, wool 20 to 25 mm, and carbon fiber 7 to 20 mm. It was very thick and had problems with flexibility and oil retention, and its sealing performance was insufficient.
(ニ) 発明の目的
この発明は、従来技術の問題点に鑑みてなされ
たものであつて、アスベスト繊維を用いないが故
に硅肺の問題がないシール性の良好なグランドパ
ツキンを提供することを目的とする。(d) Purpose of the invention This invention was made in view of the problems of the prior art, and it is an object of the present invention to provide a gland packing with good sealing properties that does not have the problem of silicosis because it does not use asbestos fibers. purpose.
(ホ) 発明の構成
そして、この発明のグランドパツキンは、上記
目的を達成するために、合成繊維のうち、繊維の
縦割特性のある芳香族ポリアミド繊維に着目し、
該繊維をフイブリル化させ抄紙して得た紙状体を
テープに細断し、これを撚糸してなる繊維材料を
用いてなることを特徴とする。(e) Structure of the invention In order to achieve the above object, the ground packing of the present invention focuses on aromatic polyamide fibers among synthetic fibers, which have the characteristic of vertically splitting fibers.
It is characterized by using a fiber material obtained by fibrillating the fibers and making paper, cutting the paper-like material into tapes, and twisting the tapes.
(ヘ) 実施例
本発明のグランドパツキンに用いる芳香族ポリ
アミド繊維は、剛性繊維のうちで特に縦割特性の
ある繊維であり、この繊維のフイブリル化は、抄
紙工程における叩解と同じであり、製糸用ビータ
ーを用いて行う。(F) Example The aromatic polyamide fiber used in the ground packing of the present invention is a rigid fiber that has a particularly vertical splitting characteristic, and fibrillation of this fiber is the same as beating in the papermaking process, and This is done using a standard beater.
抄紙は通常の抄紙法により行うが、必要に応じ
て固体潤滑剤（黒鉛・四弗化エチレン樹脂）、ワ
ツクスを混合して抄紙してもよい。 Paper making is carried out by a normal paper making method, but if necessary, a solid lubricant (graphite/tetrafluoroethylene resin) and wax may be mixed in the paper making process.
また、抄紙に当つてはチタン酸カリウム、各種
ウイスカ等繊維は非常に細いがその長さが短い繊
維状物質を混合抄紙することもできる。（チタン
酸カリウム繊維径0.1〜0.16μｍ、長さ１〜10mm表
面積７〜10m2／ｇ窒素硅素ウイスカ、径0.5μｍ、
長さ0.2〜0.3mm）。 Furthermore, in paper making, it is also possible to mix fibrous substances such as potassium titanate and various whiskers, which have very thin fibers but short lengths. (Potassium titanate fiber diameter 0.1-0.16 μm, length 1-10 mm surface area 7-10 m 2 /g nitrogen silicon whisker, diameter 0.5 μm,
length 0.2-0.3mm).
繊維の細さを代表的に表わしている比表面積の
測定結果を示すと、通常の木綿0.7（単位m2／ｇ、
以下同じ）羊毛0.96、ガラス繊維0.98、芳香族ポ
リアミド繊維0.2〜0.3であるに対しこの発明のグ
ランドパツキンの繊維に用いるフイブリル化した
芳香族ポリアミド繊維は８〜10と、アスベスト繊
維の13〜22に非常に近い。 The measurement results for the specific surface area, which typically represents the fineness of fibers, are 0.7 for ordinary cotton (unit: m 2 /g,
(The same applies hereafter) Wool is 0.96, glass fiber is 0.98, and aromatic polyamide fiber is 0.2 to 0.3, whereas the fibrillated aromatic polyamide fiber used for the fiber of the ground packing of this invention is 8 to 10, and asbestos fiber is 13 to 22. Very close.
従つて、この発明のグランドパツキンは、フイ
ブリル化した芳香族ポリアミド繊維を用いている
ため、大きな比表面積による物理的吸着力（フア
ンデルワルスカ）によつて柔軟でかつ油分の保持
性が良く、シール特性が良好である。 Therefore, since the ground packing of the present invention uses fibrillated aromatic polyamide fibers, it is flexible and has good oil retention properties due to the physical adsorption power (Juanderwalska) due to the large specific surface area. Good sealing properties.
次にこのグランドパツキンの製造工程を示す。 Next, the manufacturing process of this ground packing will be described.
第１図に於て、１は紙状体で繊維を叩解し抄紙
することによつて作られている。 In Fig. 1, numeral 1 is a paper-like material made by beating fibers and making paper.
この紙状体１を細断して細長いテープ２を作
り、これに撚りを加えたものを三本合撚して合撚
糸３を作り、これを編組してグランドパツキン４
を作る。 This paper-like material 1 is shredded to make a long and thin tape 2, which is then twisted to create three twisted threads 3, which are then braided to form a ground packing 4.
make.
このグランドパツキン４には通常パツキンに使
用される潤滑油（シリンダーオイル、マシン油、
流動パラフイン）、固体潤滑剤（四弗化エチレン
樹脂、グラフアイト、マイカ、二硫化モリブデ
ン、ワツクス）の内数種が選択使用されている。 This gland packing 4 has lubricating oil (cylinder oil, machine oil,
Several types of solid lubricants (tetrafluoroethylene resin, graphite, mica, molybdenum disulfide, wax) are used.
次にこの発明のグランドパツキンと通常の繊維
を用いたグランドパツキンのシール特性を第２図
に示す。 Next, FIG. 2 shows the sealing characteristics of the gland packing of the present invention and the gland packing using ordinary fibers.
第２図に於て現状品とは通常の芳香族ポリアミ
ド（繊維表面積0.2〜0.3m2／ｇ）を用いたものを
指し、本発明品とは芳香族ポリアミドを叩解し、
フイブリル化したもの（表面積８〜10m2／ｇ）を
用いたものを指す。 In Figure 2, the current product refers to a product using ordinary aromatic polyamide (fiber surface area 0.2 to 0.3 m 2 /g), and the product of the present invention is a product made by beating aromatic polyamide,
Refers to a fibrillated material (surface area 8 to 10 m 2 /g).
尚、流体は水を用い流体圧力は１Kg／cm2Ｇであ
る。 Note that water is used as the fluid, and the fluid pressure is 1 Kg/cm 2 G.
第２図から明らかな如く同一締付における漏液
量は通常の繊維を使用したパツキンの約1/50の値
でありシール特性が著しく向上したことを示して
いる。 As is clear from FIG. 2, the amount of liquid leaked with the same tightening was about 1/50 of that of a packing using ordinary fibers, indicating that the sealing properties were significantly improved.
(ト) 発明の効果
この発明のグランドパツキンは、芳香族ポリア
ミド繊維をフイブリル化させ、比表面積にて８〜
10m2／ｇ有する該繊維を抄紙して得られる紙状体
をテープ状に細断し、これを撚糸してなる繊維材
料を用いたことを特徴とするものであり、このた
め繊維が微細であり柔軟で油分の保持性が良く、
第２図に示すようにシール特性が従来品に比べて
著しく向上した。(g) Effects of the invention The ground packing of this invention is made by fibrillating aromatic polyamide fibers and has a specific surface area of 8 to 8.
It is characterized by using a fiber material made by cutting the paper-like material obtained by paper-making the fibers having a density of 10 m 2 /g into tape shapes and twisting them into threads, and because of this, the fibers are fine. It is flexible and has good oil retention properties.
As shown in Figure 2, the sealing properties were significantly improved compared to conventional products.
第１図はこの発明のグランドパツキンを製造す
る工程を示す略図。第２図はシール特性を示す図
である。
１……紙状体、２……テープ、３……合撚糸、
４……グランドパツキン。
FIG. 1 is a schematic diagram showing the process of manufacturing the gland packing of the present invention. FIG. 2 is a diagram showing sealing characteristics. 1...Paper-like material, 2...Tape, 3...Twisted yarn,
4...Grand Patsukin.
Claims (1)
m2／ｇｒにフイブリル化させ、抄紙して得た紙状
体をテープ状に細断し、これを撚糸してなる繊維
材料を用いてなることを特徴とする グランドパツキン。[Claims] 1. Aromatic polyamide fiber with a specific surface area of 8 to 10
A ground packing characterized by using a fiber material obtained by fibrillating m 2 /gr, cutting a paper-like material obtained by papermaking into tape shapes, and twisting the tape-like material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57091919A JPS58207577A (en) | 1982-05-28 | 1982-05-28 | Grand packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57091919A JPS58207577A (en) | 1982-05-28 | 1982-05-28 | Grand packing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58207577A JPS58207577A (en) | 1983-12-03 |
| JPH0242872B2 true JPH0242872B2 (en) | 1990-09-26 |
Family
ID=14039987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57091919A Granted JPS58207577A (en) | 1982-05-28 | 1982-05-28 | Grand packing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58207577A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015025217A (en) * | 2013-07-24 | 2015-02-05 | 株式会社サンマジー | Paper fibril yarn and method for producing the same, and textile product obtained by using the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5298851A (en) * | 1976-02-13 | 1977-08-19 | Teijin Ltd | Heat resistant packing |
| JPS5747374A (en) * | 1980-09-05 | 1982-03-18 | Nippon Pillar Packing Co Ltd | Gasket |
-
1982
- 1982-05-28 JP JP57091919A patent/JPS58207577A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5298851A (en) * | 1976-02-13 | 1977-08-19 | Teijin Ltd | Heat resistant packing |
| JPS5747374A (en) * | 1980-09-05 | 1982-03-18 | Nippon Pillar Packing Co Ltd | Gasket |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58207577A (en) | 1983-12-03 |
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