JPS6256688A - Pipe end structure of coated steel pipe for high-purity gas - Google Patents
Pipe end structure of coated steel pipe for high-purity gasInfo
- Publication number
- JPS6256688A JPS6256688A JP19476285A JP19476285A JPS6256688A JP S6256688 A JPS6256688 A JP S6256688A JP 19476285 A JP19476285 A JP 19476285A JP 19476285 A JP19476285 A JP 19476285A JP S6256688 A JPS6256688 A JP S6256688A
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- cap
- pipe
- purity gas
- end structure
- 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
Landscapes
- Non-Disconnectible Joints And Screw-Threaded Joints (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】
〈産業上の利用分野〉
この発明は高純度ガス用塗覆装鋼管の管端構造に関する
。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a pipe end structure of a coated steel pipe for high purity gas.
〈従来の技術〉
半導体製造等に際しては清浄度の高い高純度ガスが必要
とされるが、従来はタンクローり車等により供給するの
が一般的であった。しかし、近年供給の確実性の点から
パイプラインによる輸送が望まれている。<Prior Art> Highly clean, high-purity gas is required for semiconductor manufacturing and the like, and conventionally it has been common to supply it using tank trucks or the like. However, in recent years, transportation by pipeline has become desirable from the viewpoint of supply reliability.
高純度ガス用パイプラインとして要求さ几るのは、管内
部の清浄度と埋設するだめのパイプ外面の防食対策であ
るが、従来この要求に応え得るものは製造され、ていな
い。Pipelines for high-purity gas are required to have cleanliness inside the pipe and anti-corrosion measures on the outside surface of the buried pipe, but no pipeline has been manufactured that can meet these demands.
〈発明の概隻〉
本発明は上記した要望に応えるためＫなさｎたちので、
管内部の清浄度を効果的に維持でき、シｔｉ）も防食対
策としての塗覆装を容易にかつ効率的に施すことができ
る管端構造を提供しようどするものである。<Summary of the Invention> The present invention was made in order to meet the above-mentioned demands.
It is an object of the present invention to provide a tube end structure that can effectively maintain the cleanliness inside the tube and that can be easily and efficiently coated as a corrosion prevention measure.
この目的のために１本発明は鋼管外径とほぼ等しい内径
を有する鋼表ギャップを鋼管両端に嵌装し、該鋼製キャ
ップと鋼管の間をシールテープで巻着した上、鋼管外周
側面全体とキャップ外表面とに一体的に塗へ！！！ｉを
施したことを基本的な特徴とするで）のである。To this end, the present invention has been developed by fitting a steel surface gap having an inner diameter approximately equal to the outer diameter of the steel pipe at both ends of the steel pipe, wrapping a sealing tape between the steel cap and the steel pipe, and then wrapping the entire outer circumferential side surface of the steel pipe. Coat it integrally with the outer surface of the cap! ! ! The basic feature is that it has been given i).
〈実施例〉
以下本発明の管端構造の実施６・１１を図面に基づいて
説明する。<Example> Examples 6 and 11 of the tube end structure of the present invention will be described below based on the drawings.
ｆＡ管（Ｘ）は、前工程で洗浄さ、？′Ｌ、また高純度
ガスの吹付けにより乾燥し、更に高純度ガスが圧入さｎ
ている。この高純度ガスを密閉キャンプ（１）により密
封している。The fA tube (X) was cleaned in the previous step, ? 'L, and dried by spraying high purity gas, and then high purity gas was injected.
ing. This high-purity gas is sealed in a sealed camp (1).
キャップ（１）はステンレス等の鋼製であり、鋼管（Ｘ
）の外径とほぼ等しい内径を有する円筒形状をなし、鋼
管（Ｘ） Ｋ外側から密着嵌装するようになっている。The cap (1) is made of steel such as stainless steel, and is made of steel pipe (X
) It has a cylindrical shape with an inner diameter approximately equal to the outer diameter of the steel pipe (X) and is designed to be tightly fitted from the outside of the steel pipe (X).
キャップ（１）の開口端側には円周方向に８個のスリッ
トαＱが形成さｎ、キャップ（１）の、管（Ｘ）への装
脱着を容易にしている。Eight slits αQ are formed in the circumferential direction on the open end side of the cap (1) to facilitate attachment and detachment of the cap (1) to and from the tube (X).
このキャップ（１）と管（Ｘ）の間には耐熱性のシール
テープ（２）が巻着され、キャップ（１）−管（’Ｘ）
間のシールを行っている。A heat-resistant sealing tape (2) is wrapped between the cap (1) and the tube (X), and the cap (1) - tube ('X)
We are doing a seal in between.
鋼管（Ｘ）の外周側表面全体には塗覆装（３）が施さｎ
ており、こｎは一体的にキャップ（１）外表面を覆って
いる。The entire outer surface of the steel pipe (X) is coated with coating (3).
This n integrally covers the outer surface of the cap (1).
以上の構成において、密閉キャップ（１〕は鋼製で強度
が太きいため破損することがなく。In the above configuration, the sealing cap (1) is made of steel and has high strength, so it will not be damaged.
またキャップ（１）は管（Ｘ）に密着している上シール
テープ（２）によりシールしているため、確実Ｖこ管［
ｙ：３の高純Ｗガスを密閉でき管内清浄度を効果的に維
持できる。またキＡ・ツブ（１）は鋼製であるために塗
覆装コーティング時の高温に十分耐えることができるか
ら、塗覆装（３）は鋼管（Ｘ）外衣面からキャップ（１
）Ｋかけて一体的に施すことが可能となる。そのため、
キャップ（１）と鋼管（Ｘ）との接続性が高まり、キャ
ップ（１）の脱落等が生ずることがなく、高純度ガスの
漏洩を防止できる。また塗覆装（３）を一体的に施すこ
とから、塗覆作業が容易となり生産コストの低減が図、
ｎる。In addition, since the cap (1) is sealed with the upper sealing tape (2) that is in close contact with the tube (X), it is ensured that the V-shaped tube [
The high purity W gas of y:3 can be sealed and the cleanliness inside the pipe can be effectively maintained. In addition, since the key A/tube (1) is made of steel, it can withstand high temperatures during coating, so the coating (3) is applied from the outer surface of the steel pipe (X) to the cap (1).
) can be applied in one piece. Therefore,
Connectivity between the cap (1) and the steel pipe (X) is improved, the cap (1) does not fall off, and leakage of high-purity gas can be prevented. In addition, since the coating (3) is applied integrally, the coating work is easier and production costs are reduced.
nru.
第２図は他の実施何分示すもので、複数の鋼管（Ｘ）の
キャップ（１１（１）を突合せて、これらを接続テープ
（４）により接続した上１両鋼管（Ｘ）（Ｘ）及びキャ
ップ（１）（１）全体に一体的に塗覆装（３）を施した
構成としている。Figure 2 shows another example of how the caps (11 (1)) of multiple steel pipes (X) are butted together and connected with connecting tape (4). And the cap (1) (1) has a structure in which the entire coating (3) is integrally applied.
この構成の場合、複数の鋼管（Ｘ）に連続的に一つの作
業で塗覆装（３）を施すことが可能であり、生産効率が
更に向上する利点がある。In the case of this configuration, it is possible to continuously apply coating (3) to a plurality of steel pipes (X) in one operation, which has the advantage of further improving production efficiency.
〈発明の効果〉
以上説明し念ように、本発明の管端構造によれば、管端
キャップの破損、脱落がなく、しかもシール性が優ｎて
いるため、管内部の高純度ガスの漏洩がなく、高い清浄
度を維持できる。また塗覆装の施工が容易であり、生産
効率が高い等の効果がある。<Effects of the Invention> As explained above, according to the tube end structure of the present invention, the tube end cap does not break or fall off, and the sealing performance is excellent, so that leakage of high-purity gas inside the tube is prevented. High cleanliness can be maintained. In addition, it is easy to apply coating and has high production efficiency.
第１図は本発明による管端構造の一実施例の正面図、第
２図は他の実施例の正面図である。
（ＩＪ・・・密閉キャップ、（２）・・・シールテープ
、（３）・・・塗覆装。
特許生願人 日本鋼管株式会社
同 日本鋼管工事株式会社
発 明 者 三 沢 六 朗同
小 幡 康 雄同
佐 藤 卓 雄第 １
図
第２図FIG. 1 is a front view of one embodiment of the tube end structure according to the present invention, and FIG. 2 is a front view of another embodiment. (IJ...Sealing cap, (2)...Sealing tape, (3)...Coating. Patent applicant: Nippon Kokan Co., Ltd. Inventor: Roku Misawa
Yasushi Obata Yudo
Takashi Sato 1st
Figure 2
Claims (1)
両端に嵌装し、該鋼製キャップと鋼管の間をシールテー
プで巻着した上、鋼管外周側面全体とキャップ外表面と
に一体的に塗覆装を施したことを特徴とする高純度ガス
用塗覆装鋼管の管端構造。A steel cap with an inner diameter approximately equal to the outer diameter of the steel pipe is fitted on both ends of the steel pipe, a sealing tape is wrapped between the steel cap and the steel pipe, and the entire outer circumferential side of the steel pipe and the outer surface of the cap are integrally attached. Pipe end structure of coated steel pipe for high-purity gas, characterized by coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19476285A JPS6256688A (en) | 1985-09-05 | 1985-09-05 | Pipe end structure of coated steel pipe for high-purity gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19476285A JPS6256688A (en) | 1985-09-05 | 1985-09-05 | Pipe end structure of coated steel pipe for high-purity gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6256688A true JPS6256688A (en) | 1987-03-12 |
Family
ID=16329812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19476285A Pending JPS6256688A (en) | 1985-09-05 | 1985-09-05 | Pipe end structure of coated steel pipe for high-purity gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6256688A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5517738A (en) * | 1978-07-24 | 1980-02-07 | Mitsubishi Heavy Ind Ltd | Corrugated cap for pipes |
-
1985
- 1985-09-05 JP JP19476285A patent/JPS6256688A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5517738A (en) * | 1978-07-24 | 1980-02-07 | Mitsubishi Heavy Ind Ltd | Corrugated cap for pipes |
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