JP3027453U - Iron pipe - Google Patents
Iron pipeInfo
- Publication number
- JP3027453U JP3027453U JP1996000269U JP26996U JP3027453U JP 3027453 U JP3027453 U JP 3027453U JP 1996000269 U JP1996000269 U JP 1996000269U JP 26996 U JP26996 U JP 26996U JP 3027453 U JP3027453 U JP 3027453U
- Authority
- JP
- Japan
- Prior art keywords
- layer
- tubular portion
- iron pipe
- pipe
- screw portion
- 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 - Lifetime
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- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
(57)【要約】
【課題】 ネジ部を有していても錆が生じない。
【解決手段】 鉄管４の筒部１の外表面１ａ、内表面１
ｂ及びネジ部２の内表面２ｂに溶融亜鉛メッキ層５、６
を形成し、ネジ部２の外表面２ａに電気亜鉛メッキ層９
を形成し、溶融亜鉛メッキ層５の外表面５ａに、さらに
ナイロン等の樹脂コート層７を形成する。
(57) [Abstract] [Problem] Rust does not occur even if it has a screw portion. An outer surface 1a and an inner surface 1 of a tubular portion 1 of an iron pipe 4
b and the inner surface 2b of the screw portion 2, hot-dip galvanized layers 5, 6
To form an electrogalvanized layer 9 on the outer surface 2a of the screw portion 2.
Then, a resin coat layer 7 of nylon or the like is further formed on the outer surface 5a of the hot dip galvanized layer 5.
Description
【０００１】[0001]
この考案は、ガス、水道等の配管に使用されるニップル管に関する。 The present invention relates to a nipple pipe used for gas, water, and the like.
【０００２】[0002]
従来、鉄製の管には、図７に示すように、長い筒部１の例えば両端にネジ部２ を形成しているニップル管がある。また、この種のニップル管は筒体が鉄製であ り、錆の発生を防ぐため図８に示すように、鉄管４の筒部１の外表面１ａにナイ ロンコート層７を形成している。 Conventionally, as a steel pipe, there is a nipple pipe in which, as shown in FIG. 7, a long tubular portion 1 is formed with threaded portions 2 at both ends, for example. Further, in this type of nipple tube, the tubular body is made of iron, and the nylon coat layer 7 is formed on the outer surface 1a of the tubular portion 1 of the iron tube 4 in order to prevent the generation of rust, as shown in FIG.
【０００３】[0003]
上記した従来の鉄製のニップル管では、筒部はナイロンコート層で被覆されて いるが、ネジ部は被覆されていず、鉄材がむき出しとなる。このむき出したネジ 部で、そのまま、例えば図９に示す継手１１と接続すると、接続部の余ネジ部分 ３が露出し、この余ネジ部分３に錆が発生するという問題があった。 In the conventional iron nipple pipe described above, the cylindrical portion is covered with the nylon coat layer, but the screw portion is not covered, and the iron material is exposed. If the exposed threaded portion is directly connected to, for example, the joint 11 shown in FIG. 9, there is a problem that the extra screw portion 3 of the connection portion is exposed and the extra screw portion 3 is rusted.
【０００４】 この考案は上記問題点に着目してなされたものであって、ネジ部を有していて も錆の生じない鉄製管を提供することを目的としている。The present invention has been made in view of the above problems, and an object thereof is to provide an iron pipe that does not cause rust even if it has a threaded portion.
【０００５】[0005]
この出願の実用新案登録請求の範囲の請求項１に係る鉄製管は、筒部と、ネジ 部とを有する鉄製のものにおいて、筒部の外表面に樹脂コート層を形成し、ネジ 部の外表面、内表面と筒部の内表面に電気亜鉛メッキ層を形成している。 また、請求項２に係る鉄製管は、筒部とネジ部とを有する鉄製のものにおいて 、筒部の外表面に溶融亜鉛メッキ層を形成し、この溶融亜鉛メッキ層の外表面に 樹脂コート層を形成し、ネジ部の外表面、内表面と筒部の内表面に電気亜鉛メッ キ層を形成している。 The iron pipe according to claim 1 of the utility model registration claim of this application is an iron pipe having a tubular portion and a screw portion, and a resin coating layer is formed on the outer surface of the tubular portion, An electrogalvanized layer is formed on the surface, the inner surface and the inner surface of the tubular portion. The iron pipe according to claim 2 is an iron pipe having a tubular portion and a screw portion, wherein a galvanized layer is formed on the outer surface of the tubular portion, and a resin coating layer is formed on the outer surface of the galvanized layer. And the electrozinc plating layer is formed on the outer and inner surfaces of the threaded portion and the inner surface of the tubular portion.
【０００６】 また、請求項３に係る鉄製管は、鉄製の筒部とネジ部とを有するものにおいて 、筒部の外表面、内表面及びネジ部の内表面に溶融亜鉛メッキ層を形成し、前記 筒部の外表面の溶融亜鉛メッキ層の外表面にナイロンコート層を形成し、ネジ部 の外表面に電気亜鉛メッキ層を形成している。 また、請求項４に係る鉄製管は、鉄製の筒部とネジ部とを有するものにおいて 、筒部の外表面に樹脂コート層を形成し、ネジ部の外表面に電気亜鉛メッキ層を 形成している。Further, the iron pipe according to claim 3 has an iron tubular portion and a screw portion, wherein a hot dip galvanized layer is formed on an outer surface, an inner surface of the tubular portion and an inner surface of the screw portion, A nylon coat layer is formed on the outer surface of the hot dip galvanized layer on the outer surface of the cylindrical portion, and an electrogalvanized layer is formed on the outer surface of the screw portion. The iron pipe according to claim 4 has an iron tubular portion and a screw portion, wherein a resin coating layer is formed on the outer surface of the tubular portion, and an electrogalvanized layer is formed on the outer surface of the screw portion. ing.
【０００７】 また、請求項５に係る鉄製管によれば、鉄製の筒部とネジ部とを有するものに おいて、筒部の外表面、内表面及びネジ部の内表面に溶融亜鉛メッキ層を形成し 、さらに前記筒部の前記溶融亜鉛メッキ層の外表面、内表面及びネジ部の内表面 に樹脂コート層を形成し、ネジ部の外表面に電気亜鉛メッキ層を形成している。 また、請求項６に係る鉄製管によれば、鉄製の筒部とネジ部とを有するものに おいて、筒部の外表面、内表面、及びネジ部の内表面に樹脂コート層を形成し、 ネジ部の外表面に電気亜鉛メッキ層を形成している。Further, according to the iron pipe of the fifth aspect, in an iron pipe having a tubular portion and a screw portion, a hot dip galvanized layer is formed on the outer surface, the inner surface of the tubular portion and the inner surface of the screw portion. Further, a resin coat layer is formed on the outer and inner surfaces of the hot-dip galvanized layer of the tubular portion and the inner surface of the threaded portion, and an electrogalvanized layer is formed on the outer surface of the threaded portion. Further, according to the iron pipe of the sixth aspect, in the iron pipe having the iron tubular portion and the threaded portion, the resin coating layer is formed on the outer surface, the inner surface of the tubular portion, and the inner surface of the threaded portion. , An electrogalvanized layer is formed on the outer surface of the screw part.
【０００８】 請求項１、請求項２の鉄製管によれば、筒部及びネジ部の内表面及びネジ部外 表面が電気メッキ層で覆われ、筒部外表面が樹脂コート層で被覆されるので、錆 の発生が防止される。 また、請求項３、請求項４の鉄製管によれば、筒部の外表面が樹脂コート層で 覆われ、またネジ部の外表面が電気亜鉛メッキ層で被覆されるので、やはり錆の 発生が防止される。According to the iron pipe of claims 1 and 2, the inner surface of the tubular portion and the threaded portion and the outer surface of the threaded portion are covered with the electroplating layer, and the outer surface of the tubular portion is covered with the resin coating layer. Therefore, the occurrence of rust is prevented. Further, according to the iron pipes of claims 3 and 4, since the outer surface of the tubular portion is covered with the resin coating layer, and the outer surface of the screw portion is coated with the electrogalvanized layer, rust is also generated. Is prevented.
【０００９】 また、請求項５、請求項６に係る鉄製管は、筒部の外表面、内表面及びネジ部 の内表面に樹脂コート層を形成し、ネジ部の外表面に電気亜鉛メッキ層を形成す るので、同様に錆の発生が防止される。Further, in the iron pipe according to claims 5 and 6, a resin coating layer is formed on the outer surface, the inner surface of the tubular portion and the inner surface of the threaded portion, and an electrogalvanized layer is formed on the outer surface of the threaded portion. Therefore, the formation of rust is similarly prevented.
【００１０】[0010]
以下、実施の形態により、この考案をさらに詳細に説明する。 〈実施形態１〉 図１は、この考案の一実施形態ニップル管（鉄製管）の要部断面図である。こ の実施形態ニップル管の外観形状は、図７に示したものと同様である。この実施 形態ニップル管の主体は鉄管４であり、筒部１とネジ部２とを備える点は図７の ものと同様である。筒部１の鉄管４の外表面１ａには、ナイロン等の樹脂コート 層７が形成され、この筒部１の鉄管４の内表面１ｂ、ネジ部２の外表面２ａ及び 内表面２ｂには、５〜５０μ程度の電気メッキ層１０が形成されている。 Hereinafter, the present invention will be described in more detail with reference to embodiments. <Embodiment 1> FIG. 1 is a sectional view of an essential part of a nipple pipe (iron pipe) according to an embodiment of the present invention. The external shape of the nipple pipe of this embodiment is the same as that shown in FIG. 7. The main body of the nipple pipe of this embodiment is the iron pipe 4, and the same as that of FIG. 7 in that the tubular portion 1 and the screw portion 2 are provided. A resin coating layer 7 of nylon or the like is formed on the outer surface 1a of the iron pipe 4 of the tubular portion 1, and the inner surface 1b of the iron pipe 4 of the tubular portion 1, the outer surface 2a and the inner surface 2b of the screw portion 2 are The electroplated layer 10 having a thickness of about 5 to 50 μm is formed.
【００１１】 〈実施形態２〉 図２は、この考案の第２の実施形態ニップル管の要部断面図である。この実施 形態ニップル管は、筒部１及びネジ部２が鉄管４を主体とすること、筒部１の鉄 管４の内表面１ｂ、ネジ部２の外表面２ａ及び内表面２ｂに、電気メッキ層９、 １０が形成される点で図１のものと同じであるが、筒部１の鉄管４の外表面１ａ に厚さ０．５ｍｍ程度の溶融亜鉛メッキ層５が形成され、さらにその外表面５ａ にナイロン等の樹脂コート層７が形成される点で、図１のものと相違する。<Second Embodiment> FIG. 2 is a cross-sectional view of essential parts of a nipple tube according to a second embodiment of the present invention. In the nipple pipe of this embodiment, the tubular portion 1 and the screw portion 2 are mainly composed of the iron pipe 4, and the inner surface 1b of the iron pipe 4 of the tubular portion 1, the outer surface 2a and the inner surface 2b of the screw portion 2 are electroplated. 1 in that the layers 9 and 10 are formed, but a hot dip galvanized layer 5 having a thickness of about 0.5 mm is formed on the outer surface 1a of the iron pipe 4 of the tubular portion 1, and This is different from that of FIG. 1 in that a resin coat layer 7 of nylon or the like is formed on the surface 5a.
【００１２】 〈実施形態３〉 図３は、この考案の第３の実施形態ニップル管の要部断面図である。このニッ プル管は、図２に示すものの筒部１の鉄管４の内表面１ｂ及びネジ部２の内表面 ２ｂに、電気メッキ層に代えて溶融亜鉛メッキ層６を形成した点で相違するが、 その他は図２に示したものと同様である。<Third Embodiment> FIG. 3 is a cross-sectional view of essential parts of a nipple tube according to a third embodiment of the present invention. This nickel pipe is different from that shown in FIG. 2 in that a hot dip galvanized layer 6 is formed on the inner surface 1b of the iron pipe 4 and the inner surface 2b of the screw portion 2 of the tubular portion 1 in place of the electroplating layer. Others are the same as those shown in FIG.
【００１３】 〈実施形態４〉 図４は、この考案の第４の実施形態ニップル管の要部断面図である。このニッ プル管は、図１に示すものと比較すると、ネジ部２の外表面２ａにのみ、電気メ ッキ層９を形成するものであり、筒部１の外表面１ａには樹脂コート層７を形成 しているが、筒部１、ネジ部２の内表面は鉄管４がむき出しである。したがって 、このニップル管はガス専用であり、水道管には適さない。<Fourth Embodiment> FIG. 4 is a cross-sectional view of an essential part of a nipple tube according to a fourth embodiment of the present invention. Compared with the one shown in FIG. 1, this nickel tube forms an electrical plating layer 9 only on the outer surface 2a of the threaded portion 2, and a resin coating layer is formed on the outer surface 1a of the tubular portion 1. 7 is formed, the iron pipe 4 is exposed on the inner surfaces of the cylindrical portion 1 and the screw portion 2. Therefore, this nipple pipe is exclusively for gas and is not suitable for a water pipe.
【００１４】 〈実施形態５〉 図５は、この考案の第５の実施形態ニップル管の要部断面図である。このニッ プル管は、図２に示すものの筒部１及びネジ部２のそれぞれの内表面に形成した 電気亜鉛メッキ層１０に代えて、溶融亜鉛メッキ層６、樹脂コート層８を形成し たことに特徴があり、その他は図２に示すものと同様である。<Fifth Embodiment> FIG. 5 is a cross-sectional view of essential parts of a nipple tube according to a fifth embodiment of the present invention. This nickel tube has a galvanized layer 6 and a resin coat layer 8 formed in place of the electrogalvanized layer 10 formed on the inner surfaces of the cylindrical portion 1 and the screw portion 2 of the one shown in FIG. The other features are the same as those shown in FIG.
【００１５】 〈実施形態６〉 図６は、この考案の第６の実施形態ニップル管の要部断面図である。このニッ プル管は、図１に示すものの筒部１及びネジ部２のそれぞれの内表面に形成した 電気亜鉛メッキ層１０に代えて、樹脂コート層８を形成したことに特徴があり、 その他は図１に示すものと同様である。<Sixth Embodiment> FIG. 6 is a cross-sectional view of essential parts of a nipple tube according to a sixth embodiment of the present invention. This nickel pipe is characterized in that a resin coat layer 8 is formed in place of the electrogalvanized layer 10 formed on the inner surface of each of the tubular portion 1 and the screw portion 2 of the one shown in FIG. It is similar to that shown in FIG.
【００１６】[0016]
この出願の実用新案登録請求の範囲の請求項１、請求項２、請求項３、請求項 ４、請求項５及び請求項６に係る考案は、筒部の外表面に樹脂コート層を、ネジ 部の外表面に電気亜鉛メッキ層を形成しているので、主体たる鉄管の錆の発生が 軽減される。 The invention according to claim 1, claim 2, claim 3, claim 4, claim 5 and claim 6 of this application claims a resin coating layer on the outer surface of the tubular portion and a screw. Since the electrogalvanized layer is formed on the outer surface of the part, the occurrence of rust on the main steel pipe is reduced.
【図１】この考案の第１の実施形態ニップル管の要部断
面図である。FIG. 1 is a sectional view of an essential part of a nipple tube according to a first embodiment of the present invention.
【図２】この考案の第２の実施形態ニップル管の要部断
面図である。FIG. 2 is a sectional view of an essential part of a nipple tube according to a second embodiment of the present invention.
【図３】この考案の第３の実施形態ニップル管の要部断
面図である。FIG. 3 is a sectional view of an essential part of a nipple pipe according to a third embodiment of the present invention.
【図４】この考案の第４の実施形態ニップル管の要部断
面図である。FIG. 4 is a sectional view of an essential part of a nipple pipe according to a fourth embodiment of the present invention.
【図５】この考案の第５の実施形態ニップル管の要部断
面図である。FIG. 5 is a cross-sectional view of essential parts of a nipple pipe according to a fifth embodiment of the present invention.
【図６】この考案の第６の実施形態ニップル管の要部断
面図である。FIG. 6 is a sectional view of an essential part of a nipple tube according to a sixth embodiment of the present invention.
【図７】従来のニップル管の外観図である。FIG. 7 is an external view of a conventional nipple tube.
【図８】同ニップル管の要部断面図である。FIG. 8 is a cross-sectional view of main parts of the nipple tube.
【図９】同ニップル管と継手とを接続した状態を示す図
である。FIG. 9 is a view showing a state in which the nipple pipe and a joint are connected.
１ 筒部 ２ ネジ部 ４ 鉄管 ５、６ 溶融亜鉛メッキ層 ７ 樹脂コート層 ９ 電気亜鉛メッキ層 1 tubular part 2 screw part 4 iron pipe 5, 6 hot dip galvanized layer 7 resin coat layer 9 electrogalvanized layer
Claims (6)
面、内表面と筒部の内表面に電気亜鉛メッキ層を形成し
たことを特徴とする鉄製管。1. In an iron pipe having a tubular portion and a threaded portion, a resin coating layer is formed on the outer surface of the tubular portion, and an electrogalvanized layer is formed on the outer surface, the inner surface of the threaded portion and the inner surface of the tubular portion. An iron pipe characterized by being formed.
鉛メッキ層の外表面に樹脂コート層を形成し、ネジ部の
外表面、内表面と筒部の内表面に電気亜鉛メッキ層を形
成したことを特徴とする鉄製管。2. An iron pipe having a tubular portion and a threaded portion, wherein a galvanized layer is formed on the outer surface of the tubular portion, and a resin coating layer is formed on the outer surface of the galvanized layer, An iron pipe characterized in that an electrogalvanized layer is formed on the outer surface, the inner surface and the inner surface of the tubular portion.
キ層を形成し、前記筒部の外表面の溶融亜鉛メッキ層の
外表面に樹脂コート層を形成し、ネジ部の外表面に電気
亜鉛メッキ層を形成したことを特徴とする鉄製管。3. An iron pipe having a tubular portion and a threaded portion, wherein a hot dip galvanized layer is formed on the outer surface, the inner surface of the tubular portion and the inner surface of the threaded portion. An iron pipe characterized in that a resin coating layer is formed on the outer surface and an electrogalvanized layer is formed on the outer surface of the threaded portion.
に電気亜鉛メッキ層を形成したことを特徴とする鉄製
管。4. An iron pipe having a tubular portion and a screw portion, wherein a resin coating layer is formed on the outer surface of the tubular portion, and an electrogalvanized layer is formed on the outer surface of the screw portion. .
ッキ層を形成し、さらに前記筒部の前記溶融亜鉛メッキ
層の外表面、内表面及びネジ部の内表面に樹脂コート層
を形成し、ネジ部の外表面に電気亜鉛メッキ層を形成し
たことを特徴とする鉄製管。5. An iron pipe having a tubular portion and a threaded portion, wherein a hot dip galvanized layer is formed on an outer surface, an inner surface of the tubular portion and an inner surface of the threaded portion, and the hot dip galvanized layer of the tubular portion. An iron pipe characterized in that a resin coating layer is formed on the outer surface, the inner surface and the inner surface of the screw portion, and an electrogalvanized layer is formed on the outer surface of the screw portion.
ト層を形成し、ネジ部の外表面に電気亜鉛メッキ層を形
成したことを特徴とする鉄製管。6. An iron pipe having a tubular portion and a threaded portion, wherein a resin coating layer is formed on the outer surface, the inner surface of the tubular portion, and the inner surface of the threaded portion, and an electrogalvanized layer is formed on the outer surface of the threaded portion. An iron pipe characterized by being formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1996000269U JP3027453U (en) | 1996-02-01 | 1996-02-01 | Iron pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1996000269U JP3027453U (en) | 1996-02-01 | 1996-02-01 | Iron pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3027453U true JP3027453U (en) | 1996-08-09 |
Family
ID=43162568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1996000269U Expired - Lifetime JP3027453U (en) | 1996-02-01 | 1996-02-01 | Iron pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3027453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019087648A1 (en) * | 2017-10-30 | 2019-05-09 | パナソニックＩｐマネジメント株式会社 | Steel pipe and production method for steel pipe |
-
1996
- 1996-02-01 JP JP1996000269U patent/JP3027453U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019087648A1 (en) * | 2017-10-30 | 2019-05-09 | パナソニックＩｐマネジメント株式会社 | Steel pipe and production method for steel pipe |
| JPWO2019087648A1 (en) * | 2017-10-30 | 2020-04-23 | パナソニックＩｐマネジメント株式会社 | Steel pipe and method of manufacturing steel pipe |
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