JPH0293185A - Resin composite pipe - Google Patents
Resin composite pipeInfo
- Publication number
- JPH0293185A JPH0293185A JP24758188A JP24758188A JPH0293185A JP H0293185 A JPH0293185 A JP H0293185A JP 24758188 A JP24758188 A JP 24758188A JP 24758188 A JP24758188 A JP 24758188A JP H0293185 A JPH0293185 A JP H0293185A
- Authority
- JP
- Japan
- Prior art keywords
- ribs
- fiber
- resin
- heat
- peripheral surface
- 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
- 239000000805 composite resin Substances 0.000 title claims abstract description 21
- 229920005989 resin Polymers 0.000 claims abstract description 42
- 239000011347 resin Substances 0.000 claims abstract description 42
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 31
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 19
- 239000011162 core material Substances 0.000 claims description 16
- 239000000945 filler Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 abstract description 7
- 230000002093 peripheral effect Effects 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000010865 sewage Substances 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000003628 erosive effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 23
- 238000005187 foaming Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 239000004800 polyvinyl chloride Substances 0.000 description 5
- 229920000915 polyvinyl chloride Polymers 0.000 description 5
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229920006337 unsaturated polyester resin Polymers 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 239000002574 poison Substances 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- AYOHIQLKSOJJQH-UHFFFAOYSA-N dibutyltin Chemical compound CCCC[Sn]CCCC AYOHIQLKSOJJQH-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- AICOOMRHRUFYCM-ZRRPKQBOSA-N oxazine, 1 Chemical group C([C@@H]1[C@H](C(C[C@]2(C)[C@@H]([C@H](C)N(C)C)[C@H](O)C[C@]21C)=O)CC1=CC2)C[C@H]1[C@@]1(C)[C@H]2N=C(C(C)C)OC1 AICOOMRHRUFYCM-ZRRPKQBOSA-N 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、強度、剛性、耐蝕性、耐熱性、耐圧性および
耐衝撃性等に優れ、例えば高温の各種薬液の輸送が行わ
れる化学プラント等における配管に好適な樹脂複合管に
関する。Detailed Description of the Invention (Field of Industrial Application) The present invention has excellent strength, rigidity, corrosion resistance, heat resistance, pressure resistance, impact resistance, etc., and is applicable to chemical plants where various high-temperature chemical solutions are transported. This invention relates to a resin composite pipe suitable for piping in, etc.
（従来の技術）
従来、この種の樹脂複合管としては、例えば特公昭６２
−２２０３８号公報に開示されたもの、あるいは特開昭
５１−２９１５６号公報に開示されている強化熱可塑性
樹脂積層体を用いたものが知られている。(Prior art) Conventionally, this type of resin composite pipe has been manufactured by, for example, the
The one disclosed in Japanese Patent Application Laid-Open No. 22038-22038 and the one using a reinforced thermoplastic resin laminate disclosed in Japanese Patent Application Laid-Open No. 51-29156 are known.
前者は、押出成形されたポリ塩化ビニル管の外表面に、
熱硬化性樹脂で含浸された補強材（繊維強化熱硬化性樹
脂）を該管の軸方向に沿って揃え、次いでその表面に上
記と同じ補強材を該管の周方向にループ状に巻き付け、
さらにその表面を熱硬化性樹脂で溶融被覆してなるもの
である。このようになる樹脂複合管は、外層が熱硬化性
樹脂、中間層が繊維強化熱硬化性樹脂で構成されている
ので、強度および剛性が高く、また芯材が熱に弱いポリ
塩化ビニル管であるにもかかわらず８５〜９０℃の高温
にも耐え、さらにポリ塩化ビニル管本来の特性により耐
蝕性に優れているといった多くの利点を有している。The former is an extruded polyvinyl chloride pipe with a
A reinforcing material impregnated with a thermosetting resin (fiber-reinforced thermosetting resin) is arranged along the axial direction of the tube, and then the same reinforcing material as above is wrapped around the surface of the tube in a loop shape in the circumferential direction of the tube,
Furthermore, the surface is melt-coated with a thermosetting resin. This type of resin composite pipe has an outer layer of thermosetting resin and an intermediate layer of fiber-reinforced thermosetting resin, so it has high strength and rigidity, and the core material is a heat-resistant polyvinyl chloride pipe. Despite this, it has many advantages, such as being able to withstand high temperatures of 85 to 90°C and having excellent corrosion resistance due to the inherent characteristics of polyvinyl chloride pipes.
一方、後者は、熱可塑性樹脂成形体を繊維強化熱硬化性
樹脂で補強するとともに、これら両者の中間に双方に接
着性を有する厚み保持材入りのゴム弾性体層を設けたも
のである。そして、このようになる積層体で構成された
樹脂複合管は、前者と同様、耐酸、耐アルカリ性に優れ
、また中間の厚み保持材入りのゴム弾性体層により機械
的強度に優れ、また熱可塑性成形体の大きな膨張、収縮
による接合面における歪も小さく、しかも耐熱性にも優
れているといった利点を有している。On the other hand, the latter is one in which a thermoplastic resin molded body is reinforced with a fiber-reinforced thermosetting resin, and a rubber elastic layer containing a thickness-maintaining material having adhesive properties is provided between the two. Similar to the former, the resin composite tube made of such a laminate has excellent acid resistance and alkali resistance, and has excellent mechanical strength due to the rubber elastic layer containing a thickness retaining material in the middle, and is also thermoplastic. It has the advantage that the distortion at the joint surface due to large expansion and contraction of the molded body is small, and it also has excellent heat resistance.
（発明が解決しようとする課題）
しかしながら、上記従来の樹脂複合管にあっては、依然
、高温域における強度および剛性、ならびに熱可塑性樹
脂管とＦＲＰ層との接着強度が充分といえるものではな
いため、例えば温水、鉱毒水、高温下水、熱排水等の輸
送を目的とし、地下に埋設して使用するといった厳しい
環境下で用いた場合に、容易に偏平し局部圧壊してしま
うといった問題があった。(Problems to be Solved by the Invention) However, the above-mentioned conventional resin composite pipes still cannot be said to have sufficient strength and rigidity in high temperature ranges, and the adhesive strength between the thermoplastic resin pipe and the FRP layer. Therefore, when used in harsh environments, such as when buried underground for the purpose of transporting hot water, mineral poison water, high-temperature sewage, thermal waste water, etc., there is a problem that it easily flattens and locally collapses. Ta.
本発明は、上記従来の問題点に鑑みなされたものであっ
て、耐熱性、耐蝕性に優れていることは勿論のこと、上
述したような使用にも充分耐え得ることのできる機械的
強度をもった樹脂複合管を提供することを目的とするも
のである。The present invention has been made in view of the above-mentioned conventional problems, and has not only excellent heat resistance and corrosion resistance, but also mechanical strength that can withstand the above-mentioned uses. The purpose of the present invention is to provide a resin composite pipe with excellent properties.
（課題を解決するための手段）
上記目的を達成するため、本発明に係る樹脂複合管は、
外周面に螺旋状のリブまたは多数の環状リブを有する熱
可塑性樹脂管を芯材とし、この芯材の前記リブ間に耐熱
性充填剤が充填され、さらにこのようになる芯材の外周
面に繊維強化熱硬化性樹脂層が形成されたものである。(Means for Solving the Problems) In order to achieve the above object, the resin composite pipe according to the present invention has the following features:
A thermoplastic resin tube having a spiral rib or a large number of annular ribs on the outer circumferential surface is used as a core material, and a heat-resistant filler is filled between the ribs of this core material, and further on the outer circumferential surface of the core material. A fiber-reinforced thermosetting resin layer is formed.
（作用）
熱可塑性樹脂管の外周面のリブ間に充填された耐熱性充
填材と、その外層に位置する繊維強化熱硬化性樹脂層と
が一体化し、これにより該耐熱性充填材が繊維強化熱硬
化性樹脂層のリブとして作用し、熱可塑性樹脂管のリブ
の作用と相俟って管全体の機械的強度が高められる。ま
た、それと同時に、上記耐熱性充填材がアンカーとして
作用し、熱可塑性樹脂管の伸縮が繊維強化熱硬化性樹脂
層によって抑制されることになる。したがって、両者の
間に層間滑りが発生せず、両者の剥離が抑制され、熱可
塑性樹脂管に対する繊維強化熱硬化性樹脂の補強効果が
充分に得られることになり、耐熱性、耐圧性が高められ
る。(Function) The heat-resistant filler filled between the ribs on the outer circumferential surface of the thermoplastic resin pipe and the fiber-reinforced thermosetting resin layer located on the outer layer are integrated, so that the heat-resistant filler is fiber-reinforced. They act as ribs on the thermosetting resin layer, and together with the ribs on the thermoplastic resin pipe, the mechanical strength of the entire pipe is increased. At the same time, the heat-resistant filler acts as an anchor, and the expansion and contraction of the thermoplastic resin pipe is suppressed by the fiber-reinforced thermosetting resin layer. Therefore, interlayer slippage does not occur between the two, and peeling between the two is suppressed, and the reinforcing effect of the fiber-reinforced thermosetting resin on the thermoplastic resin pipe is fully obtained, increasing heat resistance and pressure resistance. It will be done.
（実施例）
以下、本発明に係る樹脂複合管の一実施例を図面を参照
して説明する。(Example) Hereinafter, an example of a resin composite pipe according to the present invention will be described with reference to the drawings.
本例を第１図に示し、同図は樹脂複合管の層構成を示す
一部破断正面図である。This example is shown in FIG. 1, which is a partially cutaway front view showing the layered structure of the resin composite pipe.
この樹脂複合管は、外周面に螺旋状のリブト・・を有す
る熱可塑性樹脂管２を芯材とし、この芯材のリブト・・
間に耐熱性充填材３が充填され、さらにこのようになる
芯材の外周面に繊維強化熱硬化性樹脂層４が形成された
ものである。This resin composite pipe uses a thermoplastic resin pipe 2 as a core material having spiral ribs on the outer circumferential surface, and the ribs of this core material are...
A heat-resistant filler 3 is filled in between, and a fiber-reinforced thermosetting resin layer 4 is further formed on the outer peripheral surface of the core material.
上記熱可塑性樹脂管２は、長平方向の両側縁に沿って、
一方に係合リブ１１、他方に係合凹部１２を有し、且つ
一方の面に、自由端側にフランジ部１３を有する断面路
１学状のリブト・・が複数本長手方向に沿って形成され
た長尺の帯状体１４を螺旋状に巻回するとともに、隣接
する前記係合リブ１１と係合凹部１２とを係合させて管
状に形成したものである。このようになる熱可塑性樹脂
管２としては、耐薬品性に優れた樹脂、例えば塩化ビニ
ル樹脂、ポリエチレン樹脂、ポリブロピレン樹脂、ポリ
アミド樹脂、アクリル樹脂、ポリカーボネート樹脂、ポ
リ塩化ビニリデン樹脂、ポリエーテル・エーテルケトン
樹脂等から成形されたものが好ましい。The thermoplastic resin pipe 2 has, along both edges in the longitudinal direction,
A plurality of ribs are formed along the longitudinal direction, having an engaging rib 11 on one side and an engaging recess 12 on the other side, and having a flange portion 13 on the free end side and having a cross-sectional shape on one surface. The elongated strip 14 is wound spirally, and the adjacent engagement ribs 11 and engagement recesses 12 are engaged with each other to form a tubular shape. The thermoplastic resin pipe 2 is made of resin with excellent chemical resistance, such as vinyl chloride resin, polyethylene resin, polypropylene resin, polyamide resin, acrylic resin, polycarbonate resin, polyvinylidene chloride resin, polyether/etherketone resin, etc. Preferably, it is molded from resin or the like.
前記耐熱性充填材３としては、例えば、低発泡乃至は高
発泡の繊維強化ウレタン、繊維強化熱硬化性樹脂、ある
いは樹脂モルタル等が好適に用いられ、上記の繊維とし
ては、ガラスロービングやガラスチップ等が好適に用い
られる。ここで上に例示したもののうち、低発泡の繊維
強化ウレタンとしては、例えば次のような組成を有する
発泡倍率が２〜３倍のものが好適に用いられる。As the heat-resistant filler 3, for example, low-foaming to high-foaming fiber-reinforced urethane, fiber-reinforced thermosetting resin, resin mortar, etc. are suitably used, and the above-mentioned fibers include glass roving, glass chips, etc. etc. are preferably used. Among those exemplified above, as the low-foaming fiber-reinforced urethane, for example, one having the following composition and an expansion ratio of 2 to 3 times is preferably used.
ポリオール化合物 １．０重量部ポリイソ
シアネート化合物 １．３重量部水等の発泡剤
０．４〜０．６重量部ジブチル錫等の錫系の触
媒 ０．２重量部前記繊維強化熱硬化性樹脂層４は
、ガラス繊維に熱硬化性樹脂を含浸させてなるものであ
り、本発明において用いられるガラス繊維としては、例
えばロービングクロス、ガラスクロス、チョソプトスト
ランドマント、ロービンダストランドが挙げられる。ま
た、熱硬化性樹脂としては、例えば不飽和ポリエステル
樹脂、アクリル樹脂、エポキシ樹脂等が好適に用いられ
る。なお、上記したガラス繊維に代えて炭素繊維を用い
たもの・であってもよく、その場合は、管の強度および
剛性をさらに上げることができて好ましい。Polyol compound 1.0 parts by weight Polyisocyanate compound 1.3 parts by weight Foaming agent such as water
0.4 to 0.6 parts by weight Tin-based catalyst such as dibutyltin 0.2 parts by weight The fiber-reinforced thermosetting resin layer 4 is made by impregnating glass fibers with a thermosetting resin, and Examples of the glass fibers used in the invention include roving cloth, glass cloth, Chosopto strand cloak, and rovinda strand. Further, as the thermosetting resin, for example, unsaturated polyester resin, acrylic resin, epoxy resin, etc. are preferably used. Note that carbon fibers may be used instead of the glass fibers described above, and in that case, the strength and rigidity of the tube can be further increased, which is preferable.
本発明は上記した実施例に限定されるものではなく、熱
可塑性樹脂管２に、例えば第２図に示すような、外周面
に多数本の環状リブ１５が一定のピンチで形成されたリ
ブ付管を用いたものであってもよい。なお、この図にお
いて、上記実施例のものと同一構成要素には同一符号を
付している。The present invention is not limited to the embodiments described above, and the thermoplastic resin pipe 2 is provided with a ribbed structure in which a large number of annular ribs 15 are formed with a certain pinch on the outer peripheral surface, as shown in FIG. 2, for example. A tube may also be used. In this figure, the same components as those in the above embodiment are given the same reference numerals.
次に、上記構成の本発明の樹脂複合管３種類と、上記構
成をもたない他の３種類の樹脂複合管とについて、偏平
強度試験、および円周方向の曲げ強度試験を行った。各
試料、各試験の試験条件および結果は次の通りである。Next, a flat strength test and a circumferential bending strength test were conducted on the three types of resin composite tubes of the present invention having the above configurations and the other three types of resin composite tubes not having the above configurations. The test conditions and results for each sample and each test are as follows.
（以下余白）
〔試料および試験条件〕
試料１ （本発明）
芯材
形 態 螺旋状リブ付管（第１図に示す管）内径２００
ｍ
肉厚 １．０ｍ
リブ高さ ８鶴
材 質 ポリ塩化ビニル
耐熱性充填材
繊 維 ガラスロービング
樹 脂 低発泡ウレタン
（発泡倍率２〜３倍）
繊維強化熱硬化性樹脂層
使用繊維 ガラスクロス（番手２３０ｇ／ｒｒｒ）積層
仕様ニガラスクロス２層
熱硬化性樹脂：不飽和ポリエステル樹脂試料２ （本発
明）
芯材
試料ｌと同じ
耐熱性充填材
繊 維 ガラスロービング
樹 脂 高発泡ウレタン
（発泡倍率 約１０倍）
繊維強化熱硬化性樹脂層
試料１と同じ
試料３（本発明）
芯材
試料ｌと同じ
耐熱性充填材
繊 維 ガラスロービング
樹 脂 熱硬化性樹脂
（不飽和ポリエステル樹脂）
繊維強化熱硬化性樹脂層
試料１と同じ
試料４（比較例）
芯材
試料１と同じ
耐熱性充填材
な し
繊維強化熱硬化性樹脂層
試料１と同じ
試料５（比較例）
芯材
試料１と同じ
耐熱性充填材
な し
繊維強化熱硬化性樹脂層
な し
試料６ （比較例）
芯材
形 態 リブのない螺旋管
内径２００ｍ■
肉厚 １．０ｍｍ
材 質 ポリ塩化ビニル
耐熱性充填材
試料１と同じ
繊維強化熱硬化性樹脂層
試料１と同じ
（試験結果〕
（＊：管を５％偏平させるための荷重）（※：計算によ
る推定値）
上記の試験結果から、本発明に係る樹脂複合管は、従来
のものに比べて機械的強度に優れ、剛性が高いことがわ
かる。(Space below) [Sample and test conditions] Sample 1 (present invention) Core material form Spiral ribbed tube (tube shown in Figure 1) Inner diameter 200
m Wall thickness 1.0m Rib height 8 Tsuru material Quality PVC heat resistant filler fiber Glass roving resin Low foaming urethane (foaming ratio 2 to 3 times) Fiber reinforced thermosetting resin layer used fiber Glass cloth (count 230g/rrr) laminated specification Niglass cloth 2-layer thermosetting resin: Unsaturated polyester resin sample 2 (invention) Heat-resistant filler fiber same as core material sample 1 Glass roving resin Highly foamed urethane (foaming ratio approximately 10 Fiber-reinforced thermosetting resin layer Same as sample 1 Sample 3 (invention) Same heat-resistant filler fiber as core sample I Glass roving resin Thermosetting resin (unsaturated polyester resin) Fiber-reinforced thermosetting resin Sample 4, same as resin layer sample 1 (comparative example) Same as core sample 1, without heat-resistant filler Sample 5, same as fiber-reinforced thermosetting resin layer sample 1 (comparative example) Same heat-resistant filler as core sample 1 No material Fiber-reinforced without thermosetting resin layer Sample 6 (comparative example) Core form Spiral tube without ribs Inner diameter 200 m Wall thickness 1.0 mm Material Polyvinyl chloride heat-resistant filler Same fiber reinforcement as sample 1 Same as thermosetting resin layer sample 1 (test result) (*: Load to flatten the pipe by 5%) (*: Estimated value by calculation) From the above test results, it can be seen that the resin composite pipe according to the present invention It can be seen that it has superior mechanical strength and high rigidity compared to other materials.
（発明の効果）
本発明の樹脂複合管は、上記のようになるものであり、
熱可塑性樹脂管の外周面のリブ間に充填された耐熱性充
填材と、その外層に位置する繊維強化熱硬化性樹脂層と
によって、非常に高い機械的強度を得ることができるも
のである。また、耐熱性充填材がアンカーとして作用し
、熱可塑性樹脂管の伸縮が繊維強化熱硬化性樹脂層によ
って抑制されるため、両者の間に眉間滑りが発生せず、
両者の剥離が抑制され、熱可塑性樹脂管に対する繊維強
化熱硬化性樹脂の補強効果が充分に得られることになる
。(Effect of the invention) The resin composite pipe of the present invention is as described above,
Extremely high mechanical strength can be obtained by the heat-resistant filler filled between the ribs on the outer peripheral surface of the thermoplastic resin pipe and the fiber-reinforced thermosetting resin layer located on the outer layer. In addition, the heat-resistant filler acts as an anchor, and the expansion and contraction of the thermoplastic resin pipe is suppressed by the fiber-reinforced thermosetting resin layer, so there is no glabella slippage between the two.
Peeling between the two is suppressed, and a sufficient reinforcing effect of the fiber-reinforced thermosetting resin on the thermoplastic resin pipe can be obtained.
したがって、本発明の樹脂複合管は、耐熱性、耐圧性、
耐蝕性に優れており、温水、鉱毒水、高温下水、熱排水
等の輸送に適し、しかもそのような役割を、地下埋設使
用といった厳しい環境下であっても、局部圧壊したりす
ることなく、充分果たすことができるものである。Therefore, the resin composite pipe of the present invention has heat resistance, pressure resistance,
It has excellent corrosion resistance and is suitable for transporting hot water, mineral poison water, high-temperature sewage, thermal waste water, etc. Furthermore, it can perform such a role without causing local crushing even under harsh environments such as underground use. It is something that can be fully fulfilled.
第１図は本発明に係る樹脂複合管の一実施例を示す一部
破断正面図、第２図は本発明に係る樹脂複合管の他の実
施例を示す一部破断正面図である。
冊
１．１５・・・リブ ２・・・熱可塑性樹脂管３・
・・耐熱性充填材
４・・・繊維強化熱硬化性樹脂層
特許出願人 積水化学工業株式会社
代表者 廣１）馨FIG. 1 is a partially cutaway front view showing one embodiment of the resin composite pipe according to the present invention, and FIG. 2 is a partially cutaway front view showing another embodiment of the resin composite pipe according to the present invention. Book 1.15... Rib 2... Thermoplastic resin pipe 3.
...Heat-resistant filler 4...Fiber-reinforced thermosetting resin layer Patent applicant: Sekisui Chemical Co., Ltd. Representative Hiroshi 1) Kaoru
Claims (1)
る熱可塑性樹脂管を芯材とし、この芯材の前記リブ間に
耐熱性充填剤が充填され、さらにこのようになる芯材の
外周面に繊維強化熱硬化性樹脂層が形成されたことを特
徴とする樹脂複合管。1) A thermoplastic resin tube having a spiral rib or a large number of annular ribs on the outer circumferential surface is used as a core material, and a heat-resistant filler is filled between the ribs of this core material, and the outer periphery of the core material becomes like this. A resin composite pipe characterized by having a fiber-reinforced thermosetting resin layer formed on its surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24758188A JPH0293185A (en) | 1988-09-30 | 1988-09-30 | Resin composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24758188A JPH0293185A (en) | 1988-09-30 | 1988-09-30 | Resin composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0293185A true JPH0293185A (en) | 1990-04-03 |
Family
ID=17165633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24758188A Pending JPH0293185A (en) | 1988-09-30 | 1988-09-30 | Resin composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0293185A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990081124A (en) * | 1998-04-27 | 1999-11-15 | 민병이 | Spiral reinforcement pipe (drainage pipe) and connecting mechanism made of synthetic resin |
| KR20010045682A (en) * | 1999-11-06 | 2001-06-05 | 양명래 | High solidity pipe |
-
1988
- 1988-09-30 JP JP24758188A patent/JPH0293185A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990081124A (en) * | 1998-04-27 | 1999-11-15 | 민병이 | Spiral reinforcement pipe (drainage pipe) and connecting mechanism made of synthetic resin |
| KR20010045682A (en) * | 1999-11-06 | 2001-06-05 | 양명래 | High solidity pipe |
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