JPH02217684A - Ring-shaped molded sealing - Google Patents
Ring-shaped molded sealingInfo
- Publication number
- JPH02217684A JPH02217684A JP3894089A JP3894089A JPH02217684A JP H02217684 A JPH02217684 A JP H02217684A JP 3894089 A JP3894089 A JP 3894089A JP 3894089 A JP3894089 A JP 3894089A JP H02217684 A JPH02217684 A JP H02217684A
- Authority
- JP
- Japan
- Prior art keywords
- sealing material
- rubber
- ring
- sealing
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title abstract description 8
- 239000003566 sealing material Substances 0.000 claims abstract description 28
- 229920001971 elastomer Polymers 0.000 claims abstract description 10
- 239000005060 rubber Substances 0.000 claims abstract description 10
- 239000004033 plastic Substances 0.000 claims abstract description 5
- 229920003023 plastic Polymers 0.000 claims abstract description 5
- 238000000465 moulding Methods 0.000 claims abstract 3
- 239000011347 resin Substances 0.000 abstract description 6
- 229920005989 resin Polymers 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 229920000181 Ethylene propylene rubber Polymers 0.000 abstract description 2
- 229920002367 Polyisobutene Polymers 0.000 abstract description 2
- 238000012856 packing Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 17
- 239000000463 material Substances 0.000 description 8
- 239000000565 sealant Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 5
- 229920005549 butyl rubber Polymers 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- 239000011345 viscous material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 150000003505 terpenes Chemical class 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Joints With Pressure Members (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明は、樹脂ライニングされたパツキン型継手、殊
にメカニカル管継手とこれに接続する管体とのシール工
法に使用される環状成形シール材に関するものである。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an annular molded sealing material used in a sealing method between a resin-lined packing-type joint, particularly a mechanical pipe joint and a pipe body connected thereto. It is related to.
〈従来の技術〉
従来、ガス、水、油などの流体を輸送する管体と、該管
体を接続する継手管とから構成される継目部の防食ある
いは防水は、粘稠な未加硫ブチルゴムの如き粘性物質を
支持体上に塗設したテープ状物をスパイラル状に巻きつ
けたり、加熱収縮性チューブを被覆して加熱収縮させた
りして行なわれている。<Conventional technology> Conventionally, corrosion protection or waterproofing of joints made up of pipe bodies that transport fluids such as gas, water, oil, etc. and joint pipes that connect these pipe bodies has been achieved using viscous unvulcanized butyl rubber. This is accomplished by spirally winding a tape-like material coated with a viscous substance such as Viscous material on a support, or by covering a heat-shrinkable tube and shrinking it by heating.
しかして、近時、継手管と管体とは継手管が鋼管の表面
に該鋼管端より突出するライニング層を有するように構
成され、管体は前記鋼管の内面に形成されたネジ部に螺
着されるネジ部を先端部分に有し、且つネジ部の終端近
傍からテーパーを付してライニング層が形成されている
ために、継手管と管体とを接続すると、継手管の突出す
るライニング層部分と管体との間に比較的大きな間隙を
生じるものであり、このような間隙は前記のテープ状物
あるいは加熱収縮性チューブなどでは充填できず、その
ために目的とする防食あるいは防水効果を得ることがで
きないのである。Recently, however, the joint pipe and the pipe body have been constructed such that the joint pipe has a lining layer on the surface of the steel pipe that protrudes from the end of the steel pipe, and the pipe body is screwed into a threaded portion formed on the inner surface of the steel pipe. It has a threaded part at the tip and a lining layer that tapers from near the end of the threaded part, so when the joint pipe and the pipe body are connected, the lining of the joint pipe protrudes. A relatively large gap is created between the layer part and the pipe body, and such a gap cannot be filled with the above-mentioned tape-like material or heat-shrinkable tube, so it is difficult to achieve the desired anti-corrosion or waterproof effect. It cannot be obtained.
このように管体と継目管の継目部の防食あるいは防水に
対する従来の上記した方法では（１）シール性、施工性
に問題がある。（２）溝付き環状成形体を破壊する。（
３）充填性にバラツキがある。（４）締め付はトルクが
安定しない。■水蜜性が悪くなる。As described above, the above-described conventional methods for preventing corrosion or waterproofing of the joint between the pipe body and the joint pipe have problems in (1) sealability and workability; (2) Destroy the grooved annular molded body. (
3) There is variation in filling properties. (4) Tightening torque is not stable. ■Water quality deteriorates.
などの多くの点で問題があった。There were problems in many respects.
このような諸問題に対して、本出願人はさきに特開昭６
０−２０６８８７号公報にて、シール材料の一方の表面
は油状物付着面に対して接着性を有し、他方の表面は金
属または合成樹脂面に対して接着性を有する構成とした
粘性シール材を提案した。In order to deal with these problems, the present applicant has previously
No. 0-206887 discloses a viscous sealing material in which one surface of the sealing material has adhesive properties to a surface on which an oily substance is attached, and the other surface has adhesive properties to a metal or synthetic resin surface. proposed.
しかしながら、このような粘性シール材においても未だ
満足しつるものではなかった。However, even such viscous sealants have not yet been satisfactory.
く課題を解決するための手段〉
本発明者はプラスチック製の溝付き環状成形体内に充填
する粘性シール材が一層ではシール性、施工性などに問
題があることから、この粘性シール材層を物性の異なる
２種のシール材からなる２層構成とするならばシール性
、施工性にもすぐれたものとすることができることを見
出し、この発明に至ったものである。Means for Solving the Problems〉 The present inventor discovered that a single layer of viscous sealant filled into a grooved annular molded body of plastic has problems in sealing performance, workability, etc. The inventors have discovered that a two-layer structure made of two different types of sealing materials can provide excellent sealing performance and workability, leading to the present invention.
〈作用〉
即ち、この発明はゴムを主成分とする粘性シール材を粘
度、硬さあるいは接着力の異なるシール材による２層と
するか、または回復力や弾性の異なるシール材による２
Ｍとすればよく、例えば第１図に示すように、コ字状成
形体５内の右側に硬いシール材６、左側に軟かいシール
材６′を充填する場合には、管体と管継手の間隙部への
右側の硬いシール材６の押出しをある程度抑え、最後の
締付けで左側の軟らかいシール材６′を押出し、充填さ
せればよい。<Function> That is, the present invention uses two layers of viscous sealants mainly composed of rubber with different viscosity, hardness, or adhesive strength, or two layers of sealants with different recovery powers and elasticity.
For example, as shown in FIG. It is sufficient to suppress the extrusion of the hard sealing material 6 on the right side into the gap to some extent, and extrude and fill the soft sealing material 6' on the left side during the final tightening.
第２図は管体Ｃと管継手Ａとのシール工法を実施する状
態を示す縦断面図であり、Ｄは締付は管、Ｂは加圧によ
り変形可能なプラスチック製で断面がほぼコ字状の成形
体５内に２種の粘性シール材６．６′を充填したこの発
明の環状成形シール材である。Fig. 2 is a vertical cross-sectional view showing the state in which the sealing method is applied between the pipe body C and the pipe joint A, where D is the pipe that is tightened, and B is a plastic material that can be deformed by pressure, and the cross section is approximately U-shaped. This is an annular molded sealing material of the present invention in which two types of viscous sealing materials 6 and 6' are filled in a shaped molded body 5.
そして、第３図は第２図の状態から締付は管りと管継手
Ａとをネジ結合させて締付け、締付は管りと管体Ｃとの
間の間隙を締付けにより環状成形シール材から押出され
る２種の粘性シール材で閉鎖密閉した状態を示す縦断面
図である。Fig. 3 shows the state shown in Fig. 2, in which the pipe and pipe fitting A are screwed together and tightened, and the gap between the pipe and pipe body C is tightened by tightening the annular molded seal material. FIG. 3 is a vertical cross-sectional view showing a state in which the container is closed and sealed with two types of viscous sealants extruded from the container.
図において、３は締付は管りの内周を傾斜面１とした拡
径部２の内周に刻設した内ネジ、４は締付は管りの外周
全体に形成した合成樹脂ライニング層、７はシール材Ｂ
の開口部である。また１０は留め金具、１１は押さえリ
ング、１２は環状パツキンであり、１４は締付は管りの
内ネジ３に螺合するべき管継手Ａの外周部分に刻設され
た外ネジである。In the figure, 3 indicates a tightening screw, and 4 indicates a synthetic resin lining layer formed on the entire outer circumference of the tube. , 7 is sealing material B
This is the opening. Further, 10 is a fastener, 11 is a holding ring, 12 is an annular packing, and 14 is an external thread carved on the outer periphery of the pipe joint A to be screwed into the internal thread 3 of the pipe.
この発明の粘性シール材６．６′はゴム成分、軟化成分
、充填剤成分および樹脂成分を主成分として構成される
ものであり、第１の層（右側層）は、これらの成分が約
２０〜４０：１０〜４０： １５〜３０１０〜２０（重
量比）の割合とされ、且つ、１×１０４〜ｌＸｌ０’ボ
イズ（ａｔ２０℃）の粘度と１００ｇ／ｃｍ以上の接着
力を有するように調整されて油状物との親和性が高めら
れており、第２の層（左側層）は前記各成分が約１０〜
３０ ： ７０〜１２０：８０〜１５０：５〜１０（重
量比）の割合とされ、且つｌ Ｘ １．０’ 〜Ｉ Ｘ
］、０’ボイス（ａｔ２０℃）の粘度と１０〜１．０
０ ｇ／ｃｍの接着力を有するように調整して金属およ
び合成樹脂面への接着性が高められているものである。The viscous sealing material 6.6' of the present invention is composed mainly of a rubber component, a softening component, a filler component, and a resin component, and the first layer (right side layer) contains approximately 20% of these components. ~40:10~40:15~30 The ratio is 10~20 (weight ratio), and it is adjusted to have a viscosity of 1 x 104 - lXl0' voids (at 20°C) and an adhesive force of 100 g/cm or more. The second layer (left side layer) contains about 10 to 100% of each of the above components.
The ratio is 30:70-120:80-150:5-10 (weight ratio), and l x 1.0' - I x
], 0'voice (at 20℃) viscosity and 10 to 1.0
It has been adjusted to have an adhesive force of 0 g/cm to improve its adhesion to metal and synthetic resin surfaces.
この発明でプラスチック製溝付き環状成形体の材質とし
てはポリ塩化ビニル、ポリオレフィン等がｊ名当である
。In this invention, polyvinyl chloride, polyolefin, etc. are commonly used as the material for the grooved annular plastic molded body.
またゴム成分としては、ポリイソブチレンゴム、ブチル
ゴム、再生ブチルゴム、変性ブチルゴム、エチレンプロ
ピレンゴム、エチレンプロピしンターボリマーゴム、ニ
トリルブタジェンゴムなどが、軟化成分としては、ポリ
ブテン、石油系プロセスオイル、流動パラフィン、潤滑
油、コールタール類、ロウ類、多価アルコール類、低分
子量可塑剤などが、充填剤成分としては、酸化チタン、
炭酸カルシウム、タルク、クレー、アスファルト、ガラ
ス繊維、コルク粉末などが、樹脂成分としては、ロジン
、ロジン誘導体、テルペン系樹脂、石油系樹脂、フェノ
ール系樹脂などが挙げられる。Rubber components include polyisobutylene rubber, butyl rubber, recycled butyl rubber, modified butyl rubber, ethylene propylene rubber, ethylene propylene interpolymer rubber, nitrile butadiene rubber, etc., and softening components include polybutene, petroleum process oil, fluidized Paraffin, lubricating oil, coal tar, waxes, polyhydric alcohols, low molecular weight plasticizers, etc. Filler components include titanium oxide,
Examples of the resin component include calcium carbonate, talc, clay, asphalt, glass fiber, and cork powder, and examples of the resin component include rosin, rosin derivatives, terpene resins, petroleum resins, and phenol resins.
このような材料からなるこの発明の環状成形シール材に
は必要に応じて顔料、老化防止剤、安定剤、紫外線吸収
剤、の如き公知の配合剤をシール材の特性を阻害しない
範囲で適量配合することができる。The annularly molded sealing material of the present invention made of such materials may contain appropriate amounts of known compounding agents such as pigments, anti-aging agents, stabilizers, and ultraviolet absorbers as long as they do not impair the properties of the sealing material. can do.
〈実施例〉 以下、この発明を実施例により説明する。<Example> This invention will be explained below with reference to Examples.
二重押出機の一方のホッパーに硬いシール材を構成する
材料を、他方のホッパーに軟らかいシール材を構成する
材料を夫々投入し、ポリ塩化ビニル、ポリオレフィン系
などからなる溝付き環状成形体内に第１図に示すように
２層に充填して環状成形シール材を得た。A material constituting a hard sealing material is charged into one hopper of a double extruder, and a material constituting a soft sealing material is charged into the other hopper, and a grooved annular molded body made of polyvinyl chloride, polyolefin, etc. As shown in Fig. 1, two layers were filled to obtain an annular molded sealing material.
このシール材を第２図に示す位置に外挿し、施工したと
ころ、管体および締付は管によく接着し、かつ管体と締
付は管との間隙に十分に充填でき該間隙を閉塞密閉する
ことができた。When this sealing material was extrapolated and installed at the position shown in Figure 2, the pipe body and clamp adhered well to the pipe, and the pipe body and clamp were able to sufficiently fill the gap between the pipe and close the gap. I was able to seal it.
〈発明の効果〉
以上、説明したように、この発明の環状成形シール材に
よれば、シール材が２種類２層に構成されているので、
第１の層（右側の層）のシール材の充填で残った隙間を
第２の層（左側の層）のシール材の充填によって埋める
ことができるので、充填性、施工性が一段と向上するの
である。<Effects of the Invention> As explained above, according to the annular molded sealing material of the present invention, since the sealing material is composed of two types and two layers,
The gap left by filling the first layer (right layer) with the sealant can be filled with the second layer (left layer), which further improves filling performance and workability. be.
第１図はこの発明の環状成形シール材の構成を示す断面
図、第２図はこの発明の環状成形シール材を用いてシー
ル工法を実施する状態を示す縦断面図、第３図は実施後
の状態を示す縦断面図である。
Ｂ・・・環状成形シール ５・・・成形体
６．６′・・・粘性シール材Fig. 1 is a sectional view showing the structure of the annular molded sealing material of the present invention, Fig. 2 is a longitudinal sectional view showing the state in which the sealing method is implemented using the annular molded sealing material of the present invention, and Fig. 3 is after the implementation. FIG. B... Annular molded seal 5... Molded body 6.6'... Viscous sealing material
Claims (1)
製の溝つき環状成形体内に２層に充填してなる環状成形
シール材。An annular molded sealing material made by filling two layers of two types of viscous sealing materials whose main component is rubber into a grooved plastic annular molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3894089A JPH02217684A (en) | 1989-02-17 | 1989-02-17 | Ring-shaped molded sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3894089A JPH02217684A (en) | 1989-02-17 | 1989-02-17 | Ring-shaped molded sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02217684A true JPH02217684A (en) | 1990-08-30 |
Family
ID=12539226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3894089A Pending JPH02217684A (en) | 1989-02-17 | 1989-02-17 | Ring-shaped molded sealing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02217684A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08280117A (en) * | 1995-04-06 | 1996-10-22 | Sumitomo Electric Ind Ltd | Sealing structure and method of cable connection box |
| EP0889108A1 (en) * | 1997-06-30 | 1999-01-07 | Bridgestone Corporation | Sealant application method |
-
1989
- 1989-02-17 JP JP3894089A patent/JPH02217684A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08280117A (en) * | 1995-04-06 | 1996-10-22 | Sumitomo Electric Ind Ltd | Sealing structure and method of cable connection box |
| EP0889108A1 (en) * | 1997-06-30 | 1999-01-07 | Bridgestone Corporation | Sealant application method |
| US6299714B1 (en) | 1997-06-30 | 2001-10-09 | Bridgestone Corporation | Sealant application method |
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