JPS59205092A - Method of connecting heat-resistng and corrosion-resisting frp composite pipe and frp joint - Google Patents
Method of connecting heat-resistng and corrosion-resisting frp composite pipe and frp jointInfo
- Publication number
- JPS59205092A JPS59205092A JP7728883A JP7728883A JPS59205092A JP S59205092 A JPS59205092 A JP S59205092A JP 7728883 A JP7728883 A JP 7728883A JP 7728883 A JP7728883 A JP 7728883A JP S59205092 A JPS59205092 A JP S59205092A
- Authority
- JP
- Japan
- Prior art keywords
- frp
- joint
- resistant
- corrosion
- composite 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
- 239000002131 composite material Substances 0.000 title claims description 24
- 238000000034 method Methods 0.000 title description 13
- 239000000853 adhesive Substances 0.000 claims description 17
- 230000001070 adhesive effect Effects 0.000 claims description 17
- 238000005260 corrosion Methods 0.000 claims description 16
- 230000007797 corrosion Effects 0.000 claims description 15
- 239000000565 sealant Substances 0.000 claims description 8
- 229910001369 Brass Inorganic materials 0.000 claims description 6
- 239000010951 brass Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000002990 reinforced plastic Substances 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000012670 alkaline solution Substances 0.000 description 3
- 239000011162 core material Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 3
- 239000004945 silicone rubber Substances 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 240000002129 Malva sylvestris Species 0.000 description 1
- 235000006770 Malva sylvestris Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明はｍ ｉｊ熱、耐蝕性のＦＲＰ＊金管とＦ”ＲＰ
縦継手の接続方法に関する。[Detailed description of the invention] The present invention is based on heat and corrosion resistant FRP*brass pipes and F"RP.
Concerning the connection method of vertical joints.
従来、耐熱、耐蝕性のＦ ＲＰ複合管とＦＲＰ継手とを
接続する場合、耐熱、ｌｔＪ′蝕住用としての適猫な接
７１１．剤がなく、このためｓ ｏ ’ｃ以上の湯や酸
・アルカリ溶液の配管工事においては、’ＦＲＰ複合管
をＦＲＰ継手に差し込み、その外側にガラス繊維を数回
巻き付けてこれに熱硬化性樹脂を含浸させ、境界部を硬
化固定してぬけないよう罠していた。これでは娘続に手
間を散すると共に接続を確実にすることができなかった
。Conventionally, when connecting a heat-resistant, corrosion-resistant FRP composite pipe and an FRP joint, a suitable connection 711 for heat-resistant, corrosion-resistant use has been used. For this reason, in piping work involving hot water above SO'C or acid/alkaline solutions, insert an FRP composite pipe into an FRP joint, wrap glass fiber several times around the outside, and inject thermosetting resin around it. It was impregnated with water and hardened and fixed at the border to prevent it from slipping out. This would waste time and effort on the daughter's continuation, and it would not be possible to ensure the connection.
又、多層から成るＦＲＰ複金管の管端面に防水鴨理を施
していないため、毛細管現象で水や熱水が層
管端よりＦＲＰ複金管中のガラス繊維をつたわって管内
へ浸透し、これが管の外側へにじみ出て、最終的には層
間剥離を生起させ、水洩れや薬液のａれの原因となって
いた。In addition, since the tube ends of multi-layered FRP double brass tubes are not waterproofed, water and hot water permeate from the layered tube ends through the glass fibers in the FRP double brass tubes and penetrate into the tubes due to capillary action. The liquid oozes out to the outside, eventually causing delamination and causing water leakage and abrasion of the chemical solution.
本発明は、かかる従来の欠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、耐蝕性に優れた接
着剤を用いることでＦＲＰ複金管とＦＲＰ継手との接合
を簡単かつ確実にさせるとともに、ＦＲＰ複金管の管端
面をシールして液洩れや水洩れのない接合が得られるよ
うにした耐熱、耐蝕性のＦＲＰ複合管とＦＲＰ継手との
接続方法を提供することにある。The present invention has been made to solve these conventional drawbacks, and its purpose is to easily and reliably join FRP double metal pipes and FRP joints by using an adhesive with excellent heat resistance and corrosion resistance. To provide a method for connecting a heat-resistant and corrosion-resistant FRP composite pipe and an FRP joint by sealing the tube end face of the FRP composite pipe to obtain a connection free from liquid or water leakage.
即ち、この目的を達成するために、本発明の接ｈＬ方力
法、耐熱、耐蝕性のＦＲＰ複合管と、耐熱、１ｊｊｔ
（ｒ・Ａ 件ＯＦ ＲＰ Ｎ４．、手ト％ ヲ＆ Ｉ’
ｘ サセルＫ Ｆ シ、Ｆｉｔ Ｐ載台・ｎとＦＲＰ継
手の嵌合部にそれぞれビニへエステル樹脂を主成分とす
る接着剤を塗布させ、史にＦ ＲＰ複合管の管端面には
シール剤を塗布した上で、 ｌ” ＲＰ複合管をＦＲＰ
継手の嵌合穴に挿入させるようにネＩ′４′成すること
とした。That is, in order to achieve this objective, we have developed a heat-resistant, corrosion-resistant FRP composite pipe using the contact hL method of the present invention, and a heat-resistant, corrosion-resistant FRP composite pipe.
(r・A case OF RP N4., hand% wo &I'
x Sacell K F shi, Fit P mounting base/n and the fitting part of the FRP joint were respectively coated with an adhesive mainly composed of ester resin, and a sealant was applied to the end surface of the FRP composite pipe. After coating, the l” RP composite pipe is made of FRP.
The screw I'4' was formed so that it could be inserted into the fitting hole of the joint.
以下に本発明の接続方法の実施例を図面に基づき詳説す
る。Embodiments of the connection method of the present invention will be explained in detail below based on the drawings.
ｌは而ｊ’ Ａ！！ ｓ耐蝕性のＦＲＰ複合管であり、
２は同様ＶｃｌｌＩＩ熱、４創ｊ性のＦＲＰ継手である
。l is j' A! ! It is a corrosion-resistant FRP composite pipe,
2 is a similar Vcll II heat, 4 wound FRP joint.
ＦＲＰ仕合ｆに１は、内側に熱可塑性樹脂層から成る芯
材Ｃを設け、この芯材Ｃの外Ｗ１１１に不飽和ポリエス
テルイリ］脂とガラスＡ＝Ｒ組とから成る強化プラスチ
ック層すを形１ｊ！りさせ、更に気化プラスチック層す
の外４Ｈ１：Ｈにポリエチレン位ｊ脂からなる被槌層ａ
を初、梼した三ノｖＪ構造のｌｌｉ’ ＲＰ複合管でる
り、８羽Ｃ１／（は、耐熱、酬ｆｌ！！ｊ性の塩化ビニ
ル樹脂を使用している。In FRP type f, a core material C made of a thermoplastic resin layer is provided on the inside, and a reinforced plastic layer made of unsaturated polyester resin and glass A=R group is formed on the outside W111 of this core material C. 1j! Then, on the outside of the vaporized plastic layer 4H1:H, a hammered layer a made of polyethylene resin is added.
For the first time, the LLI' RP composite pipe with Sanno VJ structure is made of heat-resistant, flexible vinyl chloride resin.
Ｆ １もＰ Ａｔｔ手２は、ビニＡ−ｒ−ステル樹脂を
主成分とし。The main component of F1 and P Att Hand 2 is vinyl A-r-stell resin.
これにガラス繊維、収縮防止及び粘度調整用としてのタ
ルク、それに１１蝕防止剤を混合したＳ Ｍ Ｃで成形
したものである。It is molded using SMC, which is a mixture of glass fiber, talc for preventing shrinkage and adjusting viscosity, and anti-corrosion agent No. 11.
Ｆ ＲＰ複合管１とＦＲＰ継手２とを接続する場合、ま
ず第１図に示すように、ＦＲＰ複合％”１の被′：：（
屑ａをＦＲＰ継手２の嵌合穴３の長さと略同−長さに均
」ぎ、強化プラスチ、りＩ＆ ｂをＡ！；出させる。When connecting the FRP composite pipe 1 and the FRP joint 2, first, as shown in FIG.
Equalize the scraps a to approximately the same length as the length of the fitting hole 3 of the FRP joint 2, and add reinforced plastic to the holes I and b. ;Let it come out.
次に、ＦＲＰ複合管１の管端面４にシリコンゴムから成
るシール剤５を塗布した後、上記Ｆ ＲＰ ＆台管１の
先端の強化プラスチ、り屑１〕の外周上に接着剤６を均
一に塗布し、ＦＲＰ継手２の嵌合穴３にも同じ接着剤６
を塗布する。Next, after applying a sealant 5 made of silicone rubber to the pipe end surface 4 of the FRP composite pipe 1, an adhesive 6 is uniformly applied on the outer periphery of the reinforced plastic and scraps 1] at the tip of the FRP & base pipe 1. Apply the same adhesive 6 to the fitting hole 3 of the FRP joint 2.
Apply.
次に第２図に示すようにＦ Ｒ’ Ｐ継手２の嵌合穴３
内にＦＲＰ複合管１の先鰍部を挿入する。Next, as shown in Fig. 2, the fitting hole 3 of the F R'P joint 2 is
Insert the tip of the FRP composite tube 1 into the tube.
ここでＦＲＰ継手２の嵌合穴３に塗布した接着剤６と、
ＦＲＰ？ａ合管１０強化プラスチック層すに塗布した接
着剤６と、が化学的に結合すると共に、ＦＲＰ 汲合管
１の強化プラスチ、り層すと接着剤６及びＦ’ ＲＰ継
手２の嵌合穴３と接着剤６が互に化学結合し、Ｆ Ｒ，
Ｐ ＆金管ｌとＦ ＲＰ Ａｌｊ、手２との嵌合部を強
く固着させる。Here, the adhesive 6 applied to the fitting hole 3 of the FRP joint 2,
FRP? The adhesive 6 applied to the reinforced plastic layer of the FRP joint pipe 10 is chemically bonded to the adhesive 6 applied to the reinforced plastic layer of the FRP joint pipe 1, the adhesive 6 and the fitting hole of the F' RP joint 2. 3 and adhesive 6 are chemically bonded to each other, F R,
Strongly fix the fitting parts between P & Brass 1, F RP Alj, and Hand 2.
次に第３図は本発明の他の実施例である接続方法を示し
ている。Next, FIG. 3 shows a connection method according to another embodiment of the present invention.
この場合、Ｆｒｔ ｐ複合管１′は、耐熱、耐蝕性のＰ
ＶＣ省から成る芯材Ｃ′の外側に不飽和ポリエステルと
ガラス繊維から成る強化プラスチック層ｂ′を形成させ
た二層構造のＦＲＰ複金管である。In this case, the Frt P composite pipe 1' is made of heat-resistant and corrosion-resistant P.
This is an FRP double metal tube with a two-layer structure in which a reinforced plastic layer b' made of unsaturated polyester and glass fiber is formed on the outside of a core material C' made of VC.
ｉｉ’ ＲＰ複合管１′とＦＲＰ継手２とを接続する場
合、まず、ＦＲＰ継手２の嵌合穴３に接着剤６を塗布し
、強化プラスチ、り層すの外周上にＦＲＰ継手２の１伏
合穴３の長さと略同−長さに接着剤６を塗イ１」する。ii' When connecting the RP composite pipe 1' and the FRP joint 2, first apply adhesive 6 to the fitting hole 3 of the FRP joint 2, and apply adhesive 6 to the outer periphery of the reinforcing plastic layer. Apply adhesive 6 to approximately the same length as the binding hole 3.
次ＶＣ，Ｆ Ｂ Ｉ） ４ｉ合管１′の管端面４′にシ
リコンゴムから成るシール剤５を塗布する。Next VC, FBI) Apply a sealant 5 made of silicone rubber to the tube end surface 4' of the 4i joint tube 1'.
そして、Ｉｒ ＲＰ ｘｔ手２の嵌合穴３ＶｃＦＩ（Ｐ
複合管１を挿入す名。するとＦＲＰ継手２の嵌合穴３に
！ｆ布した接／ル剤６と、Ｆ’ＲＰ抜合省１′の強化プ
ラスチ、り層ｂ′に塗布した接着剤６と、が化学的に結
合すると共に、この接着剤６によってＦＲＰ継手２の嵌
合穴３の内壁とＦ ＲＰ ？Ａ合管１′の強化プラスチ
、りＡ＋ｉ ｋ；が互に化学結合し、ＦＲＰ複金管１′
とＦＲＰ腓（−手２の豚合飾を強く同地させるものであ
る。Then, Ir RP xt hand 2 fitting hole 3VcFI(P
Name to insert composite tube 1. Then it is the fitting hole 3 of FRP joint 2! The bonding agent 6 applied to the fabric is chemically bonded to the adhesive 6 applied to the reinforcing plastic layer b' of the F'RP cutting layer 1', and this adhesive 6 bonds the FRP joint 2. The inner wall of fitting hole 3 and FRP? The reinforced plastics of the A joint pipe 1' are chemically bonded to each other, and the FRP double brass pipe 1'
and FRP 兓(-hand 2's pig decorations are strongly aligned).
尚、ＦＲＰ粘午２は嵌合穴３をテーパ状に形成させ、金
型にて一体成形している。Incidentally, the FRP adhesive 2 has a fitting hole 3 formed in a tapered shape, and is integrally molded with a mold.
又、上記した扱虐剤６はビニルエステル初島にり８０５
Ａ混合したものであり、常温で５０製、以上の接Ａ丁力
を肩する。In addition, the above-mentioned treatment agent 6 is vinyl ester Hatsushima Niri 805.
It is a mixture of A and has a contact force of 50 or more at room temperature.
ヒシエスフル樹脂は、８０〜１５０℃のＲｒ温に耐え、
酸・アルカリ性にもおかされないが、しかしながら、収
綿半が大きく、粘度が低いだめ、硬化向の収縮を小さく
シ、粘度を簡くするため、タルクを’Ａ Ｍ ｆ４ｉ加
するものである。Hishiesful resin withstands Rr temperature of 80-150℃,
Although it is not affected by acidic or alkaline conditions, talc is added to it in order to reduce the shrinkage during curing and to simplify the viscosity due to its high cotton absorption and low viscosity.
次に上記せるシール剤５は、シリコンゴムを使用してい
るが、シリコンゴムは１５０〜２００℃の耐熱性があり
、敵・アルカリ１７も強く、防水効果も優れている上に
、ＦＲＰ管層や、塩化ビニル層にも強く接着でき″る性
能を有するものである。Next, the sealant 5 mentioned above uses silicone rubber, which has a heat resistance of 150 to 200℃, is strong against alkali 17, and has an excellent waterproof effect, and also has an FRP pipe layer. It also has the ability to strongly adhere to vinyl chloride layers.
尚１本考案のシール剤５は上記せる７リコンゴムの他に
、ブチルゴムや他の耐熱性のある素材を用いることは伺
ら制限されるものではない。It should be noted that the sealant 5 of the present invention may be made of butyl rubber or other heat-resistant materials in addition to the above-mentioned 7 recon rubber, but is not limited to this.
以上、本発明の接続方法の実施例について説明し／こか
、本発明の方法では、ＦＲＰ継手とＦ ＲＰ複合管とを
接続すると同一の方法で、チーズ、エルボ等の耐熱性の
Ｆ ＲＰ継手とＦ ＲＰ複合管とをＪｄ続できることは
言うまでもｙ ’ｚ 。The embodiments of the connection method of the present invention have been described above.The method of the present invention connects heat-resistant FRP joints such as cheeses and elbows in the same way as when connecting FRP joints and FRP composite pipes. Needless to say, it is possible to connect the FRP composite pipe and the FRP composite pipe.
上記のように本発明の耐熱、耐蝕性のＦＲＰ複合層と劇
熱、１町蝕性のＦＲＰ継手との接続方法によれば、接Δ
ｌ剤で、管と継手を化学的に接合させることができるだ
め、その接合作業が簡単に行なえるし、高温の場や、酸
・アルカリ溶液用のＦＲＰ ＋ｆｉ−合’ｉｌ］′−と
Ｆ ＲＰ 継手とを耐熱、＋ｉ＋Ｊ蝕性に優れたｊｌＬ
ｓ定のＪ２ｃｚ＋’ｊ剤で強く、確実に接合させること
ができるものである。As described above, according to the method of connecting a heat-resistant, corrosion-resistant FRP composite layer and a FRP joint with severe heat and corrosion resistance, the contact Δ
Since pipes and fittings can be chemically bonded using a l agent, the bonding process can be easily performed, and it can be used in high temperature environments or in acid/alkaline solutions. RP joint and jlL with excellent heat resistance and +i+J corrosion resistance.
It is possible to bond strongly and reliably with a J2cz+'j agent of s constant.
叉、本発明の方法によれば、ＦＲＰ被合管の管端面にシ
ール剤を塗布しているため、管端面よりの水、湯、酸、
アルカリ溶液等の浸透がな（、ＦＲＰ抜金管ノーの層間
剥離もなくなるため、液の洩れを未然に防止でき、温泉
配管や各種プラント工場の配管等に有効に利用できるも
のである。Furthermore, according to the method of the present invention, since a sealant is applied to the end surface of the FRP covered pipe, water, hot water, acid,
Since there is no penetration of alkaline solutions, etc., and there is no delamination in FRP metal pipes, leakage of liquid can be prevented, and it can be effectively used for hot spring piping, piping for various plants, etc.
第１図は本発明のＪχ絖方法の一実施例を示す断面図、
第２図、は同接合状態の断面図、第３図は接１’ｒシ方
法の他側を示す接合状態の断面図である。
１．１′・・・ＦＲＰ複合管
２・・・ＦＲＰ継手
３・・・嵌合穴
４・・・管端面
５・・・シール剤
６・・・接着剤
特許出願人
九州積水工業株式会社FIG. 1 is a sectional view showing an embodiment of the Jχ wire method of the present invention;
FIG. 2 is a sectional view of the same bonded state, and FIG. 3 is a sectional view of the bonded state showing the other side of the bonding method. 1.1'...FRP composite pipe 2...FRP joint 3...Fitting hole 4...Tube end face 5...Sealant 6...Adhesive Patent applicant Kyushu Sekisui Kogyo Co., Ltd.
Claims (1)
ＲＰ継手と、を接続させるに際し、ＦＲＰ複合管とＩｉ
” ＲＰ継手の嵌合部にそれぞれビニ、ｘステル樹脂を
主成分とする接着剤を塗布させ、更にＦ ＲＰ複合管の
管端面にはシール剤を塗布した上で、ＦＲＰ複合管をＦ
ＲＰ継手の嵌合穴に挿入させるようＫ ４７１成したこ
とを特徴とする耐熱、耐蝕性のＦ ＲＰ俵合管とＦＲＰ
継手との接続方法。/) Heat-resistant and corrosion-resistant FRP brass tube and heat-resistant and corrosion-resistant F
When connecting the RP joint, the FRP composite pipe and Ii
” After applying an adhesive mainly composed of vinyl and x-stell resin to the fitting parts of the RP joint, and applying a sealant to the end surface of the FRP composite pipe,
A heat-resistant and corrosion-resistant FRP fitting pipe and FRP, characterized by a K471 structure that can be inserted into the fitting hole of an RP joint.
How to connect with fittings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7728883A JPS59205092A (en) | 1983-04-30 | 1983-04-30 | Method of connecting heat-resistng and corrosion-resisting frp composite pipe and frp joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7728883A JPS59205092A (en) | 1983-04-30 | 1983-04-30 | Method of connecting heat-resistng and corrosion-resisting frp composite pipe and frp joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59205092A true JPS59205092A (en) | 1984-11-20 |
Family
ID=13629683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7728883A Pending JPS59205092A (en) | 1983-04-30 | 1983-04-30 | Method of connecting heat-resistng and corrosion-resisting frp composite pipe and frp joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59205092A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61234923A (en) * | 1985-04-12 | 1986-10-20 | Kikusui Seisakusho:Kk | Lustering method for side band part of compression molded article |
| JPS61193280U (en) * | 1985-05-27 | 1986-12-01 | ||
| JP2021008951A (en) * | 2019-07-03 | 2021-01-28 | 積水化学工業株式会社 | Fittings with sleeve pipes and piping systems |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5133161A (en) * | 1974-09-13 | 1976-03-22 | Mitsubishi Plastics Ind | |
| JPS5633918A (en) * | 1979-08-28 | 1981-04-04 | Nippon Kokan Kk <Nkk> | Corrosion preventing method of joint of plastic-coated steel pipe |
-
1983
- 1983-04-30 JP JP7728883A patent/JPS59205092A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5133161A (en) * | 1974-09-13 | 1976-03-22 | Mitsubishi Plastics Ind | |
| JPS5633918A (en) * | 1979-08-28 | 1981-04-04 | Nippon Kokan Kk <Nkk> | Corrosion preventing method of joint of plastic-coated steel pipe |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61234923A (en) * | 1985-04-12 | 1986-10-20 | Kikusui Seisakusho:Kk | Lustering method for side band part of compression molded article |
| JPS61193280U (en) * | 1985-05-27 | 1986-12-01 | ||
| JP2021008951A (en) * | 2019-07-03 | 2021-01-28 | 積水化学工業株式会社 | Fittings with sleeve pipes and piping systems |
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