CN212251517U - Steel pipe with uneven hot-melt anticorrosive coating - Google Patents
Steel pipe with uneven hot-melt anticorrosive coating Download PDFInfo
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- CN212251517U CN212251517U CN202020617666.2U CN202020617666U CN212251517U CN 212251517 U CN212251517 U CN 212251517U CN 202020617666 U CN202020617666 U CN 202020617666U CN 212251517 U CN212251517 U CN 212251517U
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Abstract
The utility model relates to the technical field of pipelines, in particular to a steel pipe with an uneven 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 an anticorrosive coating, the anticorrosive coating comprises an inner hot-melt anticorrosive coating coated on the inner side of the steel pipe body and an outer hot-melt anticorrosive coating coated on the outer side of the steel pipe body, and the outer hot-melt anticorrosive coating has a structure that the thickness of the end part is larger than that of the middle part; the thickness of the external hot-melting anticorrosive coating below the middle part of the steel pipe body is greater than that above the middle part of the steel pipe body; 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; and, the hot melt anticorrosive coating below the steel pipe body is easy to damage during the use, and the hot melt anticorrosive coating above the steel pipe body is difficult to damage, uses the steel pipe that the anticorrosive coating thickness is the same everywhere, can not realize the unanimity of each anticorrosive coating life-span.
Disclosure of Invention
The utility model aims to overcome the defects and provide a steel pipe with a uniform hot-melt anticorrosive coating, which can ensure that the service life of the hot-melt anticorrosive coating at each part of the steel pipe body is consistent.
The purpose of the utility model is realized like this: inhomogeneous steel pipe of hot melt anticorrosive coating, including the circular shape steel pipe body of outside, steel pipe body inside have an inner chamber, scribble the anticorrosive coating in steel pipe body side, the anticorrosive coating including coating at the inboard internal heat of steel pipe body melt anticorrosive coating and coating at the outer hot melt anticorrosive coating in the steel pipe body outside, characterized by: the outer hot-melting anticorrosive layer has a structure that the thickness of the end part is larger than that of the middle part; and the thickness of the external hot-melting anticorrosive coating below the middle part of the steel pipe body is greater than that above the middle part of the steel pipe body.
Furthermore, the internal hot melting anticorrosive layer has a structure that the thickness of the end part is larger than that of the middle part; and the thickness of the internal hot melting anticorrosive layer below the middle part of the steel pipe body is greater than that above the middle part of the steel pipe body.
Furthermore, the thickness of the outer hot-melting anticorrosive layer at the end part of the outer hot-melting anticorrosive layer is 1.2-1.5 times that of the outer hot-melting anticorrosive layer at the middle part of the steel pipe body; the thickness of the outer hot-melting anticorrosive coating at the lower part of the outer hot-melting anticorrosive coating is 1.2-1.5 times that of the upper part of the outer hot-melting anticorrosive coating of the steel pipe body.
Furthermore, the thickness of the outer hot-melting anticorrosive layer at the end part of the inner hot-melting anticorrosive layer is 1.2-1.5 times that of the inner hot-melting anticorrosive layer at the middle part of the steel pipe body; the thickness of the inner hot-melting anticorrosive layer at the lower part of the inner hot-melting anticorrosive layer is 1.2-1.5 times that of the upper part of the inner hot-melting anticorrosive layer in the steel pipe body.
Furthermore, the inner side surface and the outer side surface of the steel pipe body are provided with one side zinc coating, and the inner hot-melting anticorrosive coating and the outer hot-melting anticorrosive coating are adhered outside the zinc coating.
Furthermore, the inner hot-melting anticorrosive layer and the outer hot-melting anticorrosive layer are internally provided with glass wool layers.
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 a schematic sectional view taken along line a-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, a zinc coating 6 and a glass wool layer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 and 2, the uneven steel pipe of hot melt anticorrosive coating, including the circular shape steel pipe body 1 of outside, the inside inner chamber 2 that has of steel pipe body, scribble the anticorrosive coating in the steel pipe body side, the anticorrosive coating including coating at the inboard interior hot melt anticorrosive coating 3 of steel pipe body and coating at the outer hot melt anticorrosive coating 4 in the steel pipe body outside, characterized by: the outer hot-melting anticorrosive layer has a structure that the thickness of the end part is larger than that of the middle part; and the thickness of the external hot-melting anticorrosive coating below the middle part of the steel pipe body is greater than that above the middle part of the steel pipe body.
The utility model discloses to set up the anticorrosive coating thicker some not corrosion resistant position, make its durable degree tend to unanimity, realize the utility model aims at.
Furthermore, the internal hot melting anticorrosive layer has a structure that the thickness of the end part is larger than that of the middle part; and the thickness of the internal hot melting anticorrosive layer below the middle part of the steel pipe body is greater than that above the middle part of the steel pipe body.
Furthermore, the thickness of the outer hot-melting anticorrosive layer at the end part of the outer hot-melting anticorrosive layer is 1.2-1.5 times that of the outer hot-melting anticorrosive layer at the middle part of the steel pipe body; the thickness of the outer hot-melting anticorrosive coating at the lower part of the outer hot-melting anticorrosive coating is 1.2-1.5 times that of the upper part of the outer hot-melting anticorrosive coating of the steel pipe body. The arrangement is more reasonable.
Furthermore, the thickness of the internal hot-melting anticorrosive layer at the end part of the internal hot-melting anticorrosive layer is 1.2-1.5 times that of the internal hot-melting anticorrosive layer at the middle part of the steel pipe body; the thickness of the outer hot-melting anticorrosive layer at the lower part of the inner hot-melting anticorrosive layer is 1.2-1.5 times that of the upper part of the inner hot-melting anticorrosive layer in the steel pipe body. The arrangement is more reasonable.
Further, the inner side surface and the outer side surface of the steel pipe body are provided with one side zinc coating 5, and the inner hot-melting anticorrosive coating and the outer hot-melting anticorrosive coating are bonded outside the zinc coating. Thus, the utility model discloses it is more corrosion-resistant.
Furthermore, the inner hot-melting anticorrosive layer and the outer hot-melting anticorrosive layer are internally provided with a glass wool layer 6. The utility model discloses set up like this, it is more firm to make interior hot melt anticorrosive coating and outer hot melt anticorrosive coating connect in the steel pipe body outside.
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 (6)
1. Inhomogeneous steel pipe of hot melt anticorrosive coating, including the circular shape steel pipe body of outside, steel pipe body inside have an inner chamber, scribble the anticorrosive coating in steel pipe body side, the anticorrosive coating including coating at the inboard internal heat of steel pipe body melt anticorrosive coating and coating at the outer hot melt anticorrosive coating in the steel pipe body outside, characterized by: the outer hot-melting anticorrosive layer has a structure that the thickness of the end part is larger than that of the middle part; and the thickness of the external hot-melting anticorrosive coating below the middle part of the steel pipe body is greater than that above the middle part of the steel pipe body.
2. The steel pipe as set forth in claim 1, wherein: the inner hot melting anticorrosive layer has a structure that the thickness of the end part is larger than that of the middle part; and the thickness of the internal hot melting anticorrosive layer below the middle part of the steel pipe body is greater than that above the middle part of the steel pipe body.
3. The steel pipe as set forth in claim 2, wherein: the thickness of the outer hot-melting anticorrosive layer at the end part of the outer hot-melting anticorrosive layer is 1.2-1.5 times that of the outer hot-melting anticorrosive layer at the middle part of the steel pipe body; the thickness of the outer hot-melting anticorrosive coating at the lower part of the outer hot-melting anticorrosive coating is 1.2-1.5 times that of the upper part of the outer hot-melting anticorrosive coating of the steel pipe body.
4. A steel pipe according to claim 2 or 3 wherein: the thickness of the outer hot-melting anticorrosive layer at the end part of the inner hot-melting anticorrosive layer is 1.2-1.5 times that of the inner hot-melting anticorrosive layer at the middle part of the steel pipe body; the thickness of the inner hot-melting anticorrosive layer at the lower part of the inner hot-melting anticorrosive layer is 1.2-1.5 times that of the upper part of the inner hot-melting anticorrosive layer in the steel pipe body.
5. The steel pipe as set forth in claim 4, wherein: the steel pipe body medial surface and lateral surface have one side galvanizing coat, interior hot melt anticorrosive coating and outer hot melt anticorrosive coating bond outside the galvanizing coat.
6. The steel pipe as set forth in claim 5, wherein: the inner hot-melting anticorrosive layer and the outer hot-melting anticorrosive layer are internally provided with glass wool layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020617666.2U CN212251517U (en) | 2020-04-23 | 2020-04-23 | Steel pipe with uneven hot-melt anticorrosive coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020617666.2U CN212251517U (en) | 2020-04-23 | 2020-04-23 | Steel pipe with uneven hot-melt anticorrosive coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212251517U true CN212251517U (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020617666.2U Active CN212251517U (en) | 2020-04-23 | 2020-04-23 | Steel pipe with uneven hot-melt anticorrosive coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212251517U (en) |
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2020
- 2020-04-23 CN CN202020617666.2U patent/CN212251517U/en active Active
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