CN212251514U - Steel pipe with acid etching hot melting anticorrosive coating - Google Patents
Steel pipe with acid etching hot melting anticorrosive coating Download PDFInfo
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- CN212251514U CN212251514U CN202020581990.3U CN202020581990U CN212251514U CN 212251514 U CN212251514 U CN 212251514U CN 202020581990 U CN202020581990 U CN 202020581990U CN 212251514 U CN212251514 U CN 212251514U
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Abstract
The utility model relates to the technical field of pipelines, in particular to a steel pipe with an acid corrosion hot melting anticorrosive coating, which comprises a circular steel pipe body outside, wherein an inner cavity is arranged inside the steel pipe body, a hot melting anticorrosive coating is coated on the side surface of the steel pipe body, a layer of acid corrosion coating is arranged on the side surface of the steel pipe body, and the hot melting anticorrosive coating is arranged on the acid corrosion coating; the side surface of the steel pipe body comprises an inner side surface positioned around the inner cavity of the steel pipe body and an outer side surface positioned at the periphery of the steel pipe body, the acid etching layer comprises an inner acid etching layer on the inner side surface of the steel pipe body and an outer acid etching layer on the outer side surface of the steel pipe body, and the hot melting anticorrosive layer comprises an inner hot melting anticorrosive layer on the inner acid etching layer and an outer hot melting anticorrosive layer on the outer acid etching layer; the steel pipe has the advantages of firm bonding between the hot-melt anticorrosive layer and the side surface of the steel pipe and improvement of product quality.
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 of the hot-melting 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 steel pipe from being corroded, the technical scheme is as follows: the steel pipe comprises a steel pipe body and is characterized in that the inner side and the outer side of the steel pipe body are respectively coated with a hot-melt anticorrosive layer, and the anticorrosive layers comprise an inner hot-melt anticorrosive layer coated on the inner side of the steel pipe body and an outer hot-melt anticorrosive layer coated on the outer side of the steel pipe body. The hot melt anticorrosive coating is coated by hot melt adhesive particles under the condition of heating the steel pipe body, the hot melt adhesive particles are scattered on the surface of the steel pipe under the condition of heating the steel pipe, the hot melt adhesive particles are molten, and the hot melt adhesive is solidified and forms a hot melt anticorrosive coating on the side surface of the steel pipe body along with the cooling of the steel pipe.
In the prior art, the side surface of the steel pipe body is not processed and is a smooth plane, so that the defect that the hot-melt anticorrosive coating is not firmly connected with the side surface of the steel pipe exists, and the quality of the steel pipe is influenced.
Disclosure of Invention
The utility model aims to overcome the defects and provide a steel pipe with acid etching hot melting anticorrosive coating, which has firm bonding between the hot melting anticorrosive coating and the side surface of the steel pipe and improves the product quality.
The purpose of the utility model is realized like this: acid corrosion hot melt anticorrosive coating's steel pipe, including the circular shape steel pipe body of outside, steel pipe body inside have an inner chamber, scribble one deck hot melt anticorrosive coating, characterized by in steel pipe body side: the steel pipe body side has a layer of acid corrosion layer, hot melt anticorrosive coating on the acid corrosion layer.
The steel pipe body comprises a steel pipe body inner cavity, an acid etching layer, a hot melting anticorrosive layer and a hot melting anticorrosive layer, wherein the steel pipe body inner cavity is formed in the steel pipe body inner cavity, the acid etching layer comprises an inner acid etching layer on the steel pipe body inner side, the outer acid etching layer on the steel pipe body outer side, and the hot melting anticorrosive layer comprises an inner hot melting anticorrosive layer on the inner acid etching layer and an outer hot melting anticorrosive layer on the outer acid etching layer.
Furthermore, a zinc coating is arranged on the outer surface of the acid etching layer, and the hot-melt anti-corrosion layer is arranged on the outer surface of the zinc coating.
Furthermore, the zinc coating comprises an inner zinc coating on the inner side surface of the steel pipe body and an outer zinc coating on the outer side surface of the steel pipe body.
The utility model has the advantages that: the steel pipe has the advantages of firm bonding between the hot-melt anticorrosive layer and the side surface of the steel pipe and improvement of product quality.
Drawings
Fig. 1 is a schematic cross-sectional view of the present invention.
Wherein: 1. the steel pipe comprises a steel pipe body 11, an inner side surface 12, an outer side surface 2, an inner cavity 3, a hot-melting anticorrosive layer 31, a hot-melting anticorrosive layer 32, an outer hot-melting anticorrosive layer 4, an acid-etched layer 41, an inner acid-etched layer 42, an outer acid-etched layer 5, a galvanized layer 51, an inner galvanized layer 52 and an outer galvanized layer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the steel pipe of acid etching 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 one deck hot melt anticorrosive coating 3, characterized by in the steel pipe body side: the steel pipe body side has one deck acid corrosion layer 4, hot melt anticorrosive coating on the acid corrosion layer.
The utility model discloses owing to have one deck acid corrosion layer on the steel pipe, form the concave structure in hole, the combination of favourable hot melt anticorrosive coating and steel pipe body can realize the utility model aims at.
Further, the side surface of the steel pipe body comprises an inner side surface 11 positioned around the inner cavity of the steel pipe body and an outer side surface 12 positioned at the periphery of the steel pipe body, the acid etching layer comprises an inner acid etching layer 41 on the inner side surface of the steel pipe body and an outer acid etching layer 42 on the outer side surface of the steel pipe body, and the hot melting anticorrosive layer comprises an inner hot melting anticorrosive layer on the inner acid etching layer 31 and an outer hot melting anticorrosive layer 32 on the outer acid etching layer.
By the arrangement, the effect that both the inner and outer hot-melting anticorrosive coatings can be good in structure can be achieved.
Furthermore, a zinc coating 5 is arranged on the outer surface of the acid etching layer, and the hot-melt anti-corrosion layer is arranged on the outer surface of the zinc coating.
The utility model discloses set up like this, can reach better anticorrosive effect.
Further, the zinc coating includes an inner zinc coating 51 on the inner side of the steel pipe body and an outer zinc coating 52 on the outer side of the steel pipe body.
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 (4)
1. Acid corrosion hot melt anticorrosive coating's steel pipe, including the circular shape steel pipe body of outside, steel pipe body inside have an inner chamber, scribble one deck hot melt anticorrosive coating, characterized by in steel pipe body side: the steel pipe body side has a layer of acid corrosion layer, hot melt anticorrosive coating on the acid corrosion layer.
2. The acid-etched hot-melt anticorrosive steel pipe according to claim 1, wherein: the steel pipe body side comprises an inner side surface located around an inner cavity of the steel pipe body and an outer side surface located on the periphery of the steel pipe body, the acid etching layer comprises an inner acid etching layer on the inner side surface of the steel pipe body and an outer acid etching layer on the outer side surface of the steel pipe body, and the hot melting anticorrosive layer comprises an inner hot melting anticorrosive layer on the inner acid etching layer and an outer hot melting anticorrosive layer on the outer acid etching layer.
3. The acid-etched steel pipe with a hot-melt anticorrosive coating according to claim 1 or 2, wherein: the acid etching layer is also provided with a zinc coating on the outer surface, and the hot-melt anti-corrosion layer is arranged on the outer surface of the zinc coating.
4. The acid-etched hot-melt anticorrosive steel pipe according to claim 3, wherein: the galvanized layer comprises an inner galvanized layer on the inner side surface of the steel pipe body and an outer galvanized layer on the outer side surface of the steel pipe body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020581990.3U CN212251514U (en) | 2020-04-19 | 2020-04-19 | Steel pipe with acid etching hot melting anticorrosive coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020581990.3U CN212251514U (en) | 2020-04-19 | 2020-04-19 | Steel pipe with acid etching hot melting anticorrosive coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212251514U true CN212251514U (en) | 2020-12-29 |
Family
ID=74003647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020581990.3U Active CN212251514U (en) | 2020-04-19 | 2020-04-19 | Steel pipe with acid etching hot melting anticorrosive coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212251514U (en) |
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2020
- 2020-04-19 CN CN202020581990.3U patent/CN212251514U/en active Active
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