CN212251515U - Steel pipe with hot melt anticorrosive coating - Google Patents
Steel pipe with hot melt anticorrosive coating Download PDFInfo
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- CN212251515U CN212251515U CN202020582912.5U CN202020582912U CN212251515U CN 212251515 U CN212251515 U CN 212251515U CN 202020582912 U CN202020582912 U CN 202020582912U CN 212251515 U CN212251515 U CN 212251515U
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- steel pipe
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Abstract
The utility model relates to the technical field of pipelines, in particular to a steel pipe with a hot-melt anticorrosive coating, which comprises a circular steel pipe body outside, wherein an inner cavity is arranged inside the steel pipe body, the side surface of the steel pipe body is coated with the anticorrosive coating, the anticorrosive coating comprises an internal hot-melt anticorrosive coating coated on the inner side of the steel pipe body and an external hot-melt anticorrosive coating coated on the outer side of the steel pipe body, and the anticorrosive coating has a structure that the thickness at the end part is greater than that at the middle part; the outer surface and the inner surface of the two ends of the steel pipe body are respectively provided with a galvanized layer, and the anticorrosive layer is coated outside the galvanized layers; such steel pipe has the advantage that the life of the hot melt anticorrosive coating of each position of the steel pipe body can be consistent.
Description
Technical Field
The utility model belongs to the technical field of the pipeline technique and specifically relates to a steel pipe that relates to hot melt anticorrosive coating.
Background
The steel pipe with the hot-melt anticorrosive layer comprises a circular steel pipe body outside, an inner cavity is formed in the steel pipe body, and the steel pipe is generally applied to urban water delivery; in order to prevent the inner cavity of the steel pipe from being corroded, the technical scheme is as follows: the inner side and the outer side of the steel pipe body are respectively coated with a hot-melt anticorrosive layer.
In the prior art, the thickness of the hot-melt anticorrosive coating on the steel pipe body is the same, when the steel pipe is used, the hot-melt anticorrosive coating close to the end part is easy to damage, and the hot-melt anticorrosive coating close to the middle part of the steel pipe is good; the service life of the anticorrosive coating at each position cannot be consistent.
Disclosure of Invention
The purpose of the utility model is to provide a steel pipe with a hot melt anticorrosive coating, which can make the service life of the hot melt anticorrosive coating at each position of the steel pipe body consistent.
The purpose of the utility model is realized like this: the utility model provides a steel pipe with hot melt anticorrosive coating, includes the circular shape steel pipe body of outside, steel pipe body inside have an inner chamber, scribble the anticorrosive coating on the steel pipe body side, the anticorrosive coating including the coating at the inboard interior hot melt anticorrosive coating of steel pipe body and the coating at the outer hot melt anticorrosive coating in the steel pipe body outside, characterized by: the anticorrosive layer has a structure in which the thickness at the end portion is greater than the thickness at the middle portion.
The inner hot-melt anticorrosive layer has a structure in which the thickness at the end portion is greater than the thickness at the middle portion, and the outer hot-melt anticorrosive layer has a structure in which the thickness at the end portion is greater than the thickness at the middle portion.
Further, the outer surface and the inner surface of the two ends of the steel pipe body are respectively provided with a galvanized layer, and the anti-corrosion layer is coated outside the galvanized layers.
Furthermore, the thickness of the internal hot melt anticorrosive layer is uniformly transited at the end part and the middle part.
Further, the thickness of the inner hot melt anticorrosive layer at the end part is 1.5 to 2 times of the thickness of the middle part.
Further, the length of the end part is 30-50 cm.
The utility model has the advantages that: such steel pipe has the advantage that the life of the hot melt anticorrosive coating of each position of the steel pipe body can be consistent.
Drawings
Fig. 1 is a schematic cross-sectional view of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Wherein: 1. the steel pipe comprises a steel pipe body 2, an inner cavity 3, an internal hot-melting anticorrosive layer 4, an external hot-melting anticorrosive layer 5 and a zinc coating.
D is the length of the end.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 and 2, a steel pipe with hot melt anticorrosive coating, includes the circular shape steel pipe body 1 of outside, inside inner chamber 2 that has of steel pipe body, scribble the anticorrosive coating on the steel pipe body side, the anticorrosive coating including coating at the inside hot melt anticorrosive coating 3 of steel pipe body inboard and coating at the outside hot melt anticorrosive coating 4 of steel pipe body outside, characterized by: the anticorrosive layer has a structure in which the thickness at the end portion is greater than the thickness at the middle portion.
The utility model discloses owing to taken the thicker structure of anticorrosive coating at steel pipe body both ends, it is more corrosion-resistant, and steel pipe body middle part is thinner relatively, can reduction in production cost, does not influence normal use yet, can reach the utility model discloses a purpose in synchronous life-span.
The inner hot-melt anticorrosive layer has a structure in which the thickness at the end portion is greater than the thickness at the middle portion, and the outer hot-melt anticorrosive layer has a structure in which the thickness at the end portion is greater than the thickness at the middle portion.
This practicality sets up like this, and the life-span of inside and outside hot melt anticorrosive coating all can tend to unanimously, and the effect is better.
Further, the outer surface and the inner surface of the two ends of the steel pipe body are respectively provided with a galvanized layer 5, and the anti-corrosion layer is coated outside the galvanized layers.
The utility model discloses set up like this, more can increase the corrosion resistance of this end of body of steel pipe.
Furthermore, the thickness of the internal hot melt anticorrosive layer is uniformly transited at the end part and the middle part.
Furthermore, the thickness of the inner hot melt anticorrosive layer at the end part is 1.5-2 times of the thickness at the middle part.
Further, the length D of the end part is 30-50 cm.
The above description is only for the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.
Claims (7)
1. The utility model provides a steel pipe with hot melt anticorrosive coating, includes the circular shape steel pipe body of outside, steel pipe body inside have an inner chamber, scribble the anticorrosive coating on the steel pipe body side, the anticorrosive coating including the coating at the inboard interior hot melt anticorrosive coating of steel pipe body and the coating at the outer hot melt anticorrosive coating in the steel pipe body outside, characterized by: the anticorrosive layer has a structure in which the thickness at the end portion is greater than the thickness at the middle portion.
2. The steel pipe as set forth in claim 1, wherein: the inner hot-melt anticorrosive layer has a structure that the thickness of the inner hot-melt anticorrosive layer at the end part is larger than that at the middle part, and the outer hot-melt anticorrosive layer has a structure that the thickness of the outer hot-melt anticorrosive layer at the end part is larger than that at the middle part.
3. The steel pipe as set forth in claim 1 or 2, wherein: the outer surface and the inner surface of the two ends of the steel pipe body are respectively provided with a galvanized layer, and the anticorrosive layer is coated outside the galvanized layers.
4. The steel pipe as set forth in claim 3, wherein: the thickness of the internal hot melting anticorrosive layer at the end part and the middle part is in uniform transition.
5. The steel pipe as set forth in claim 4, wherein: the thickness of the internal hot melt anticorrosive layer at the end part is 1.5-2 times of that at the middle part.
6. The steel pipe as set forth in claim 1 or 2, wherein: the length of the end part is 30-50 cm.
7. The steel pipe as set forth in claim 4 or 5, wherein: the length of the end part is 30-50 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020582912.5U CN212251515U (en) | 2020-04-20 | 2020-04-20 | Steel pipe with hot melt anticorrosive coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020582912.5U CN212251515U (en) | 2020-04-20 | 2020-04-20 | Steel pipe with hot melt anticorrosive coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212251515U true CN212251515U (en) | 2020-12-29 |
Family
ID=74001831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020582912.5U Active CN212251515U (en) | 2020-04-20 | 2020-04-20 | Steel pipe with hot melt anticorrosive coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212251515U (en) |
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2020
- 2020-04-20 CN CN202020582912.5U patent/CN212251515U/en active Active
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