JPS59178241A - Method of coating inner surface of pipe with flange - Google Patents
Method of coating inner surface of pipe with flangeInfo
- Publication number
- JPS59178241A JPS59178241A JP58053343A JP5334383A JPS59178241A JP S59178241 A JPS59178241 A JP S59178241A JP 58053343 A JP58053343 A JP 58053343A JP 5334383 A JP5334383 A JP 5334383A JP S59178241 A JPS59178241 A JP S59178241A
- Authority
- JP
- Japan
- Prior art keywords
- flange
- steel pipe
- joint
- flow path
- resin
- 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.)
- Granted
Links
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (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】
不発ｌ！′ｌは７ランジを有する金属管等の内面に樹脂
を被覆する方法に関する。[Detailed description of the invention] Misfire! 'l relates to a method of coating the inner surface of a metal tube or the like having seven flange with resin.
従来より、鋼管内面に樹脂を被覆する方法として加熱さ
れた鋼管内に樹脂粉末を空気と共に送り込み溶着せしめ
る方法があるが、７ランジ付の鋼管において７ランジの
接合面１で樹脂で被覆しようとしても、７ランジ面が管
内面と直角方向に張出しているために管内面と均一な肉
厚に被覆溶着せしめることができんかった。したがって
、管内面に被覆した後に７ランジ面に樹脂粉末を噴射ガ
ンにより吹付けて被覆していたが、二工程となると共に
７ランジ面を噴射ガンで均一厚さに被覆することが困難
で手間を要していた。Conventionally, there is a method of coating the inner surface of a steel pipe with resin by feeding resin powder together with air into a heated steel pipe and welding it. , 7 Because the flange surface protrudes perpendicularly to the inner surface of the tube, it was not possible to weld the coating to the inner surface of the tube to a uniform thickness. Therefore, after coating the inner surface of the tube, resin powder was sprayed onto the 7-flange surface using a spray gun, but this required two steps and it was difficult and time-consuming to coat the 7-flange surface with a uniform thickness using a spray gun. It required
本発明は、上記の欠点を解消し、７ランジ面を管内面と
同時に被覆する方法を提供しようとするものである。The present invention aims to eliminate the above-mentioned drawbacks and provide a method for coating the seven flange surfaces simultaneously with the inner surface of the tube.
本発明を図面を参照して説明する。The present invention will be explained with reference to the drawings.
図は本発明の実施態様の一例を示す説明図で、加熱され
た７ランジ付鋼管ｌの両端部にジヨイント２．２を接続
し、ジヨイント２．２を通して粉末樹脂混合空気を鋼管
１内に供給することにより鋼管１内面及び７ランジ面に
粉末梢詣を溶着し被覆層を形成するようになっている。The figure is an explanatory diagram showing an example of an embodiment of the present invention, in which joints 2.2 are connected to both ends of a heated steel pipe 1 with 7 flanges, and powder resin-mixed air is supplied into the steel pipe 1 through the joint 2.2. By doing so, the powder is welded to the inner surface of the steel pipe 1 and the flange surface of the steel pipe 7 to form a coating layer.
ジヨイント２，２け鋼管１に向けて前進及び後退すると
共に回転可能となされた支持具３，３に支持され、一方
のジョイン）２に’は粉末供給ホッパー４と空気導入孔
５から粉末樹脂混合空気が供給さね、るようＫなされ、
他方のジ岬インド２デはサイクロン６を介して吸引ブロ
ワ−７が連結されている。The joints 2 and 2 are supported by supports 3 and 3 which are rotatable as they move forward and backward toward the two-piece steel pipe 1, and at one joint 2, powder resin is mixed from a powder supply hopper 4 and an air introduction hole 5. The air is not supplied, so that
The other Cape India 2 is connected to a suction blower 7 via a cyclone 6.
この装置においては、吸引ブロワ−７を作動すると、サ
イクロン６を経て空気導入孔５より空気が吸引され、こ
の空気の流れの中にホッパー４から粉末樹脂が供給され
ることにより粉末樹脂の混合した空気流となってジョイ
ン、ト２を通り鋼管ｌに供給される。鋼管１が加熱され
ているので、粉末°樹脂はその内壁に接触して溶融付着
して樹脂層が形成される。鋼管１を通過した粉末樹脂は
サイクロン６で集められる。In this device, when the suction blower 7 is operated, air is sucked through the air introduction hole 5 through the cyclone 6, and powdered resin is supplied from the hopper 4 into this air flow, so that the powdered resin is mixed. The air flows through the joint 2 and is supplied to the steel pipe 1. Since the steel pipe 1 is heated, the powdered resin comes into contact with its inner wall and melts and adheres thereto, forming a resin layer. The powdered resin that has passed through the steel pipe 1 is collected in a cyclone 6.
上記の装置に訃いて、末完明け＠２図に示すようなジヨ
イント２が使用される。In addition to the above device, a joint 2 as shown in Figure 2 is used.
ジヨイント２け鋼管１の７ランジ１１面に押し当てて接
続されるようになっており、ジヨイント２の空気流路２
１け７ランジ１１との接続端面近くで半径方向に拡大さ
れ、その拡大部２２の中央に芯部材２３が設けられてい
る。この芯部材２３け流路２１の軸心方向から保持杆２
４とグリッジ２５．２５により固定されている。It is connected by pressing against the 7 flange 11 surface of the joint 2 steel pipe 1, and the air flow path 2 of the joint 2
The core member 23 is expanded in the radial direction near the connecting end surface with the 1/7 flange 11, and the core member 23 is provided at the center of the expanded portion 22. From the axial direction of the flow path 21 through this core member 23,
4 and glitches 25.25.
芯部材２３により空気流路２１の拡大部２２の内周面と
芯部材２３の外周面との間に環状流路２６が形成されて
いる。この環状流路２６けジ傍インド２が７ランジ１１
と接続された七き、芯部材２３と７ランジ１１との間に
形成される環状流路に連続して鋼管１内につながってい
る。An annular flow path 26 is formed by the core member 23 between the inner peripheral surface of the enlarged portion 22 of the air flow path 21 and the outer peripheral surface of the core member 23 . This annular channel 26 has 7 lunges 11
The annular flow path formed between the core member 23 and the seven flange 11 continues into the steel pipe 1 .
ジヨイント２の前面は７ランジ１１のボルト孔を塞ぐよ
うな径となされている。The front surface of the joint 2 has a diameter that closes the bolt holes of the seven flange 11.
芯部材２３はグリッジ２５を通して冷却水により冷却可
能となされ、芯部材２３に粉末樹脂の付着するのが防止
されている。また、ジヨイント２も外面より冷却される
ようになっているる上記のごときジヨイント２を使用す
ることにより、粉末樹脂混合空気は環状流路において７
ランジ面に沿って流れることになり、７ランジ面にも鋼
管１内面と同時に被覆される。The core member 23 can be cooled by cooling water through the grid 25, and powder resin is prevented from adhering to the core member 23. In addition, by using the joint 2 as described above, in which the joint 2 is also cooled from the outer surface, the powder resin mixed air can flow in the annular flow path.
It flows along the flange surface, and the flange surface 7 is also coated on the inner surface of the steel pipe 1 at the same time.
粉末樹脂の溶融被覆された鋼管１けジヨイント２．２が
後退して切り離され、被慢＃１脂は必要に応じて加熱架
′橋した後冷却して７ランジ付の内面被覆鋼管が得られ
る。The steel pipe joint 2.2 coated with molten powder resin is retracted and separated, and the #1 resin is heated and cross-linked if necessary, and then cooled to obtain an inner-coated steel pipe with 7 flange. .
本発明の７ランジ付管の内面被覆方法は前述の通りの方
法でちって、ジヨイントの空気流路の中央に五部材を設
けて環状流路を形成し、この環状流路を７ランジ面に面
するように接続すること罠より、粉末樹脂混合空気を７
ランジ面にも情内面と同時に付着溶融せしめることがで
き、−回の工程で７ランジ面にも被覆できるので、７ラ
ンジ面への被覆が簡単釦なし得る。The method for coating the inner surface of a tube with 7 flange according to the present invention is as described above, in which five members are provided in the center of the air flow path of the joint to form an annular flow path, and this annular flow path is formed on the 7 flange surface. Connect the trap so that the powder resin mixes in the air 7
It can be attached and melted to the flange surface at the same time as the sentiment surface, and the 7 lange surface can also be coated in the second step, so the 7 lange surface can be coated easily.
第１図は本発明の実施態様の一例を示す説明図、１：７
ランジ付鋼管、１１：７ランジ、２：ジヨイント、２１
：空気流路、２３：芯部材、２６：環状流路。
特許出願人
積水化学工業株式会社
代表者藤沼基利FIG. 1 is an explanatory diagram showing an example of an embodiment of the present invention, 1:7
Steel pipe with flange, 11:7 lange, 2:joint, 21
: Air channel, 23: Core member, 26: Annular channel. Patent applicant Sekisui Chemical Co., Ltd. Representative Motoshi Fujinuma
Claims (1)
する管の内面被覆方法において、ｔｉｆｆ記ジヨイント
の空気流路の中央く芯部材を設けて環状流路を形成し、
この環状流路を７ランジ面に面するように接続すること
を特徴とする７ランジ付管の内面被覆方法。In a method for coating the inner surface of a tube for supplying powdered resin-mixed air into the tube through a joint, a core member is provided in the center of the air flow path of the tiff joint to form an annular flow path;
A method for coating the inner surface of a tube with seven flange, characterized by connecting this annular flow path so as to face the seven flange surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58053343A JPS59178241A (en) | 1983-03-28 | 1983-03-28 | Method of coating inner surface of pipe with flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58053343A JPS59178241A (en) | 1983-03-28 | 1983-03-28 | Method of coating inner surface of pipe with flange |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59178241A true JPS59178241A (en) | 1984-10-09 |
| JPH0148074B2 JPH0148074B2 (en) | 1989-10-17 |
Family
ID=12940118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58053343A Granted JPS59178241A (en) | 1983-03-28 | 1983-03-28 | Method of coating inner surface of pipe with flange |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59178241A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3155576A1 (en) | 2019-10-25 | 2021-04-29 | Miura Co., Ltd. | Boiler |
| CA3158058A1 (en) | 2019-11-15 | 2021-05-20 | Kazuyuki OTANI | Boiler |
| US11326772B2 (en) | 2020-03-16 | 2022-05-10 | Miura Co., Ltd. | Boiler with a heat generation body that stores hydrogen |
-
1983
- 1983-03-28 JP JP58053343A patent/JPS59178241A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0148074B2 (en) | 1989-10-17 |
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