JPH038864Y2 - - Google Patents
Info
- Publication number
- JPH038864Y2 JPH038864Y2 JP1985092797U JP9279785U JPH038864Y2 JP H038864 Y2 JPH038864 Y2 JP H038864Y2 JP 1985092797 U JP1985092797 U JP 1985092797U JP 9279785 U JP9279785 U JP 9279785U JP H038864 Y2 JPH038864 Y2 JP H038864Y2
- Authority
- JP
- Japan
- Prior art keywords
- joint
- socket
- frp
- unsaturated polyester
- plastic layer
- 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
Links
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 11
- 239000002990 reinforced plastic Substances 0.000 claims description 10
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 5
- 239000002253 acid Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000012670 alkaline solution Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
Landscapes
- Joints With Sleeves (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、酸・アルカリ溶液や高温水を利用す
るプラント工場や温泉分野において利用される配
管の継手に関し、更に詳細には、耐熱・耐蝕性に
優れたFRP継手に関するものである。[Detailed description of the invention] (Field of industrial application) The present invention relates to piping joints used in plants and hot spring fields that use acid/alkaline solutions and high-temperature water. This article concerns FRP joints with excellent properties.
（従来技術とその問題点）
従来、酸・アルカリ溶液や80℃近くの温泉水を
輸送する配管の継手としては、金属製継手が使用
されているが、この金属製継手は腐蝕が早くその
ため継手部分から溶液が洩れる等の事故が多発
し、又、金属製継手は重いため取り扱いに不便で
ある上に特殊な膜やメツキを内面に施さねばなら
ないため高価で実用性に乏しいという問題があつ
た。(Prior art and its problems) Conventionally, metal fittings have been used as fittings for piping that transports acid/alkaline solutions and hot spring water at temperatures near 80°C, but these metal fittings corrode quickly and are therefore difficult to use. Accidents such as leakage of solution from parts occurred frequently, and metal joints were heavy and inconvenient to handle, and the inner surface had to be coated with a special film or plating, making them expensive and impractical. .
（問題点を解決するための手段）
本考案は、かかる従来の問題点を解消せんとな
されたもので、その目的とするところは、耐熱・
耐蝕性に優れ、しかも内面寸法精度が高いプラン
ト配管用のFRP継手を提供せんとするものであ
る。(Means for Solving the Problems) The present invention was made to solve these conventional problems, and its purpose is to
The objective is to provide an FRP joint for plant piping that has excellent corrosion resistance and high internal dimensional accuracy.
即ち、この目的を達成するために、本考案の
FRP継手は、あらかじめ成形した塩化ビニル樹
脂製継手の外側に、コンテイニユアスストランド
マツトにテレフタル酸系不飽和ポリエステル樹脂
を含浸させた強化プラスチツク層を一体に形成し
た構成を採用している。 That is, in order to achieve this purpose, the present invention
FRP joints employ a structure in which a reinforced plastic layer made of continuous strand mat impregnated with terephthalic acid-based unsaturated polyester resin is integrally formed on the outside of a pre-formed PVC resin joint.
（実施例）
以下、本考案の実施例を図面に示して説明す
る。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.
第１図は、本考案のFRP継手の一実施例であ
るFRPソケツト継手Ａの断面図を示したもので
ある。 FIG. 1 shows a sectional view of an FRP socket joint A, which is an embodiment of the FRP joint of the present invention.
該FRPソケツト継手Ａは、塩化ビニル樹脂製
ソケット１（以下「ソケツト」という。）と強化
プラスチツク層２とよりなり、ソケツト１の外側
に強化プラスチツク層２を一体的に形成させたも
のである。 The FRP socket joint A is composed of a vinyl chloride resin socket 1 (hereinafter referred to as "socket") and a reinforced plastic layer 2, with the reinforced plastic layer 2 integrally formed on the outside of the socket 1.
前記ソケツト１は、JISで定められた口径の外、
必要に応じて加工された特定サイズのものも全て
含んでおり、通常は20〜40℃の水溶液輸送配管に
使用されているもので、80℃以上の高温溶液には
熱変形して使用できず、衝撃性もさほど優れてい
るものではない。 The socket 1 has a diameter other than that specified by JIS,
This includes all specific sizes that have been processed as needed, and are normally used for aqueous solution transport piping at temperatures of 20 to 40°C, but cannot be used for high-temperature solutions of 80°C or higher due to thermal deformation. The impact resistance is also not very good.
又、強化プラスチツク層２はコンテイニユアス
ストランドマツトにテレフタル酸系不飽和ポリエ
ステル樹脂を含浸・硬化させたものであり、レジ
ンインジエクシヨンにて連続的に生産する。 The reinforced plastic layer 2 is made by impregnating and curing a continuous strand mat with a terephthalic acid-based unsaturated polyester resin, and is continuously produced by resin injection.
即ち、コンテイニユアスストランドマツトは、
ガラス繊維である連続ストランドを層状に重ねて
マツト状にしたものであり、樹脂がマツトの間を
かなりのスピードで通過してもマツトが押し流さ
れることがなく、樹脂含浸性がよい。又、このマ
ツトは、連続ストランドが層状に重つた状態で出
来ているため、厚み方向に弾力があり、肉厚の変
動がある場合にも製品にクラツク等を生じさせな
いように作用する特徴を持ち、レジンインジエク
シヨンには最適なマツトであり、この強化プラス
チツク層２をソケツト１の外側に設けることによ
つて、該ソケツト１の耐熱性・耐衝撃性を向上す
ることができるものである。 In other words, the continuous strand mat is
It is made of continuous strands of glass fiber layered to form a mat, and even when the resin passes between the mats at a considerable speed, the mats will not be washed away and have good resin impregnation properties. In addition, since this mat is made of continuous strands piled up in layers, it has elasticity in the thickness direction, and has the characteristic of preventing cracks in the product even when there are variations in wall thickness. This mat is most suitable for resin injection, and by providing this reinforced plastic layer 2 on the outside of the socket 1, the heat resistance and impact resistance of the socket 1 can be improved.
又、コンテイニユアスストランドマツトを使用
しているので、複雑な形状の継手にもフイツトさ
せることができ、前記脂含浸性の良さと相俟つて
継手を均一に補強することができる。 Furthermore, since a continuous strand mat is used, it can be fitted to joints of complex shapes, and in combination with the above-mentioned good fat impregnation properties, the joint can be uniformly reinforced.
従つて、実施例のFRPソケツト継手Ａを形成
するときは、ソケツト１の外側にコンテイニユア
スストランドマツトを巻回し、これを金型内に入
れて外からテレフタル酸系不飽和ポリエステル樹
脂を注入し、コンテイニユアスストランドマツト
中にテレフタル酸系不飽和ポリエステル樹脂を含
浸させて硬化させたのち離型して行なうものであ
る。尚、ソケツトの外側には、口径３mm以下では
２〜３mmの強化プラスチツク層２を設けることに
よつて80℃で110Kg／cm2の水圧破壊値を示し、口
径30mm以上の継手でも３〜５mmに強化プラスチツ
ク層２を設けることによつて、100Kg／cm2以上の
水圧破壊値にまで上昇できるものである。 Therefore, when forming the FRP socket joint A of the example, a continuous strand mat is wound around the outside of the socket 1, this is placed in a mold, and a terephthalic acid-based unsaturated polyester resin is injected from the outside. , a continuous strand mat is impregnated with a terephthalic acid-based unsaturated polyester resin, cured, and then released from the mold. Furthermore, by providing a reinforced plastic layer 2 of 2 to 3 mm on the outside of the socket for joints with a diameter of 3 mm or less, a water pressure failure value of 110 Kg/cm 2 can be achieved at 80°C, and even for joints with a diameter of 30 mm or more, the strength is 3 to 5 mm. By providing the reinforced plastic layer 2, it is possible to increase the hydraulic rupture value to 100 kg/cm 2 or more.
以上、本考案の一実施例について説明したが、
本考案の具体的な構成は前述した実施例に限定さ
れるものではなく、例えば、実施例では継手とし
てソケツトを例にあげて説明したが、エルボ、チ
ーズ、ベンド、レデユーサ等も含み、ソケツトと
同様に強化プラスチツク層を一体的に設けること
によつて、高温、高圧の継手として利用できるこ
とは言うまでもない。又、本考案の継手をより安
くするために、レジンインジエクシヨンによつて
連続的に成形することもでき、実用配管材として
いろんな分野で有効に利用することができるもの
である。更に、本考案では、使用する不飽和ポリ
エステル樹脂は、テレフタル酸系の不飽和ポリエ
ステル樹脂であり、オルソ系若しくはイソ系の不
飽和ポリエステル樹脂より耐薬品性、耐熱性、及
び寸法収縮性が優れているもので、カセイソーダ
や塩酸等にもおかされない特徴を有するものであ
る。 One embodiment of the present invention has been described above, but
The specific configuration of the present invention is not limited to the above-mentioned embodiments. For example, in the embodiments, a socket was used as an example of a joint, but it also includes an elbow, a cheese, a bend, a reducer, etc. It goes without saying that by integrally providing a reinforcing plastic layer, it can also be used as a high-temperature, high-pressure joint. Furthermore, in order to make the joint of the present invention cheaper, it can be continuously molded by resin injection and can be effectively used in various fields as a practical piping material. Furthermore, in the present invention, the unsaturated polyester resin used is a terephthalic acid-based unsaturated polyester resin, which has better chemical resistance, heat resistance, and dimensional shrinkage than ortho-based or iso-based unsaturated polyester resins. It has the characteristic that it is not affected by caustic soda, hydrochloric acid, etc.
（考案の効果）
以上説明したように、本考案のFRP継手は、
内側を塩化ビニル樹脂にて成形しているため酸・
アルカリ等の高温溶液の輸送にも十分に使用でき
るものであり、又、その上強化プラスチツク層に
テレフタル酸系の不飽和ポリエステル樹脂を使用
しているために、寸法安定性、耐薬品性及に耐熱
性の面でオルソ系及びイソ系の不飽和ポリエステ
ル樹脂よりも優位性が生ずるものである。即ち、
塩化ビニル樹脂製継手を芯材として、その外側
に、コンテイニユアスストランドマツトを巻回
し、これにテレフタル酸系不飽和ポリエステル樹
脂を含浸させているので、物理的な強度及び学的
な高温特性を向上させることができ60〜85℃の高
温流体、特に酸・アルカリ溶液の輸送に利用で
き、プラント工場、温泉分野には最適な継手とし
て使用することができるものである。(Effects of the invention) As explained above, the FRP joint of the invention has
Because the inside is molded with vinyl chloride resin, acid and
It can be fully used for transporting high-temperature solutions such as alkalis, and because the reinforced plastic layer uses terephthalic acid-based unsaturated polyester resin, it has excellent dimensional stability, chemical resistance, and It is superior to ortho- and iso-based unsaturated polyester resins in terms of heat resistance. That is,
The PVC resin joint is used as the core material, and continuous strand mat is wound around the outside, which is impregnated with terephthalic acid-based unsaturated polyester resin, so it has excellent physical strength and high-temperature properties. It can be used to transport high-temperature fluids of 60 to 85℃, especially acid and alkaline solutions, and can be used as an optimal fitting for plants, factories, and hot spring fields.
又、本考案では、芯材として硬質塩化ビニル樹
脂製継手を使用しているから、継手の内面寸法安
定性を向上させることができるし、又、強化繊維
としてコンテイニユアスストランドマツトを用い
ているから、Ｌ字型やＴ字型等の複雑な形状の継
手であつても均一に補強することができるという
効果もある。 In addition, in this invention, since a hard vinyl chloride resin joint is used as the core material, the internal dimensional stability of the joint can be improved, and continuous strand mat is used as the reinforcing fiber. Therefore, even joints with complicated shapes such as L-shapes and T-shapes can be uniformly reinforced.
第１図は本考案のFRP継手の一実施例を示す
FRPソケツト継手の断面図である。
Ａ：FRPソケツト継手（FRP継手）、１：塩化
ビニル樹脂製ソケツト（硬質塩化ビニル樹脂製継
手）、２：強化プラスチツク層。
Figure 1 shows an example of the FRP joint of the present invention.
FIG. 3 is a sectional view of an FRP socket joint. A: FRP socket joint (FRP joint), 1: PVC socket (hard vinyl chloride resin joint), 2: Reinforced plastic layer.
Claims (1)
の外側にコンテイニユアスストランドマツトにテ
レフタル酸系不飽和ポリエステル樹脂を含浸し硬
化させた強化プラスチツク層を一体に形成したこ
とを特徴とするFRP継手。 An FRP joint characterized by integrally forming a reinforced plastic layer made by impregnating continuous strand mat with terephthalic acid-based unsaturated polyester resin and hardening it on the outside of a pre-formed hard vinyl chloride resin joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985092797U JPH038864Y2 (en) | 1985-06-18 | 1985-06-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985092797U JPH038864Y2 (en) | 1985-06-18 | 1985-06-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62889U JPS62889U (en) | 1987-01-07 |
| JPH038864Y2 true JPH038864Y2 (en) | 1991-03-05 |
Family
ID=30649910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985092797U Expired JPH038864Y2 (en) | 1985-06-18 | 1985-06-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH038864Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH084989B2 (en) * | 1987-12-28 | 1996-01-24 | 本田技研工業株式会社 | Model processing equipment |
| JPH0622913B2 (en) * | 1989-07-07 | 1994-03-30 | 旭有機材工業株式会社 | FRP reinforced vinyl chloride resin pipe joint and method for producing the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5339611A (en) * | 1976-09-24 | 1978-04-11 | Souken Kouei Kk | Method of withdrawing ground water |
| JPS5835085B2 (en) * | 1977-08-24 | 1983-07-30 | 望月 「たく」夫 | Continuous pumping and separation equipment for liquids containing solids |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5835085U (en) * | 1981-09-01 | 1983-03-07 | 三菱樹脂株式会社 | Pipe connection structure |
-
1985
- 1985-06-18 JP JP1985092797U patent/JPH038864Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5339611A (en) * | 1976-09-24 | 1978-04-11 | Souken Kouei Kk | Method of withdrawing ground water |
| JPS5835085B2 (en) * | 1977-08-24 | 1983-07-30 | 望月 「たく」夫 | Continuous pumping and separation equipment for liquids containing solids |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62889U (en) | 1987-01-07 |
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