CN212509848U - Anticorrosive spiral steel pipe of heavy-calibre 3PE - Google Patents
Anticorrosive spiral steel pipe of heavy-calibre 3PE Download PDFInfo
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- CN212509848U CN212509848U CN201922411849.9U CN201922411849U CN212509848U CN 212509848 U CN212509848 U CN 212509848U CN 201922411849 U CN201922411849 U CN 201922411849U CN 212509848 U CN212509848 U CN 212509848U
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- steel pipe
- coating
- anticorrosive
- anticorrosive coating
- epoxy
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Abstract
The utility model discloses an anticorrosive spiral steel pipe of heavy-calibre 3PE, including the steel pipe parent, steel pipe parent inner wall spraying has knot epoxy coating, steel pipe parent outside surface spraying has epoxy powder anticorrosive coating, epoxy powder anticorrosive coating surface spraying has the adhesive, adhesive surface spraying has polyethylene anticorrosive coating, polyethylene anticorrosive coating surface paste has centrifugal glass cotton, the utility model discloses an at steel pipe parent surface from interior by outer spraying epoxy powder, adhesive and polyethylene anticorrosive coating in proper order make 3PE anticorrosive spiral steel pipe have good corrosion resistance, moisture permeability resistance and mechanical properties, and centrifugal glass cotton has played fine heat preservation effect to 3PE anticorrosive spiral steel pipe, and the knot epoxy coating of steel pipe parent inner wall reacts with the steel pipe parent, produces the alloy-layer, makes steel pipe parent inner wall have corrosion-resistant, The characteristics of wear resistance and impact resistance greatly prolong the service life of the large-caliber 3PE anticorrosion spiral steel pipe.
Description
Technical Field
The utility model relates to a steel pipe specifically is a anticorrosive spiral steel pipe of heavy-calibre 3 PE.
Background
The large-caliber corrosion-resistant spiral steel pipe is a steel pipeline which is processed by a corrosion-resistant process and can effectively prevent or slow down corrosion caused by chemical or electrochemical reaction in the transportation and use processes, and the steel pipe is commonly used as a pipeline for conveying media such as oil, water, gas and the like in a laboratory.
However, the existing steel pipe has poor corrosion resistance and short service life, and particularly for buried pipelines, the pressure resistance of the pipelines can be reduced due to pitting corrosion and large-area corrosion on the outer surface of the pipelines caused by soil corrosion, electrochemical corrosion and the like. Therefore, a large-caliber 3PE anti-corrosion spiral steel pipe is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an anticorrosive spiral steel pipe of heavy-calibre 3PE to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a anticorrosive spiral steel pipe of heavy-calibre 3PE, includes the steel pipe parent, steel pipe parent inner wall spraying has knot epoxy coating, steel pipe parent outside surface spraying has epoxy powder anticorrosive coating, epoxy powder anticorrosive coating surface spraying has the adhesive, adhesive surface spraying has polyethylene anticorrosive coating, polyethylene anticorrosive coating surface paste has centrifugal glass cotton.
Preferably, the thickness of the polyethylene anticorrosive coating is 2.5mm-3.7 mm.
Preferably, the thickness of the adhesive coating is 170-250 um.
Preferably, the coating thickness of the epoxy powder anti-corrosive coating is >100 um.
Preferably, the coating thickness of the epoxy bonding coating is 300-500 um.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a through at steel pipe matrix surface from interior by outer spraying epoxy powder in proper order, adhesive and polyethylene anticorrosive coating make the anticorrosive spiral steel pipe of 3PE have good corrosion resistance, resistance to moisture permeability and mechanical properties, and centrifugal glass is cotton has played fine heat preservation effect to the anticorrosive spiral steel pipe of 3PE, and the knot epoxy coating of steel pipe matrix inner wall reacts with the steel pipe matrix, the alloy-layer is moulded to the generation steel, make steel pipe matrix inner wall have corrosion-resistant, wear-resisting, shock-resistant characteristics, great improvement the life of the anticorrosive spiral steel pipe of 3PE of heavy-calibre.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is the internal sectional structure diagram of the steel pipe matrix of the present invention.
In the figure: 1 steel pipe matrix, 2 knot epoxy coating, 3 epoxy powder anticorrosive coating, 4 adhesive, 5 polyethylene anticorrosive coating, 6 centrifugal glass wool.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a 3PE anticorrosive spiral steel pipe of heavy-calibre, includes steel pipe matrix 1, 1 inner wall spraying of steel pipe matrix has knot epoxy coating 2, 1 outside surface spraying of steel pipe matrix has epoxy powder anticorrosive coating 3, 3 surface spraying of epoxy powder anticorrosive coating have adhesive 4, 4 surface spraying of adhesive has polyethylene anticorrosive coating 5, 5 surface pasting of polyethylene anticorrosive coating have centrifugal glass cotton 6.
Furthermore, the thickness of the polyethylene anticorrosive coating 5 is 2.5mm-3.7mm, so that the steel pipe has a good anticorrosive effect.
Furthermore, the thickness of the coating of the adhesive 4 is 170-250um, so that the epoxy powder anticorrosive coating 3 and the polyethylene anticorrosive coating 5 are fused and adhered conveniently.
Furthermore, the coating thickness of the epoxy powder anticorrosive coating 3 is more than 100um, so that the epoxy powder anticorrosive coating has excellent chemical anticorrosive performance and high mechanical performance.
Furthermore, the coating thickness of the epoxy coating 2 is 300-500um, and the epoxy coating 2 reacts with the steel pipe matrix 1 to generate a steel-plastic alloy layer, so that the inner wall of the steel pipe matrix 1 has the characteristics of corrosion resistance, wear resistance and impact resistance.
Specifically, when the steel pipe matrix is used, the surface of the steel pipe matrix is sequentially sprayed with the epoxy powder, the adhesive and the polyethylene anticorrosive coating from inside to outside, so that the 3PE anticorrosive spiral steel pipe has good corrosion resistance, water vapor permeability resistance and mechanical properties, the centrifugal glass wool has a good heat insulation effect on the 3PE anticorrosive spiral steel pipe, the epoxy coating on the inner wall of the steel pipe matrix reacts with the steel pipe matrix to generate a steel-plastic alloy layer, the inner wall of the steel pipe matrix has the characteristics of corrosion resistance, wear resistance and impact resistance, and the service life of the large-caliber 3PE anticorrosive spiral steel pipe is greatly prolonged.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a anticorrosive spiral steel pipe of heavy-calibre 3PE, includes steel pipe matrix (1), its characterized in that: the steel pipe parent (1) inner wall spraying has knot epoxy coating (2), steel pipe parent (1) outside surface spraying has epoxy powder anticorrosive coating (3), epoxy powder anticorrosive coating (3) surface spraying has adhesive (4), adhesive (4) surface spraying has polyethylene anticorrosive coating (5), polyethylene anticorrosive coating (5) surface paste has centrifugal glass cotton (6).
2. The large-caliber 3PE corrosion-resistant spiral steel pipe according to claim 1, which is characterized in that: the thickness of the polyethylene anticorrosive coating (5) is 2.5mm-3.7 mm.
3. The large-caliber 3PE corrosion-resistant spiral steel pipe according to claim 1, which is characterized in that: the thickness of the coating of the adhesive (4) is 170-250 um.
4. The large-caliber 3PE corrosion-resistant spiral steel pipe according to claim 1, which is characterized in that: the coating thickness of the epoxy powder anticorrosive coating (3) is more than 100 um.
5. The large-caliber 3PE corrosion-resistant spiral steel pipe according to claim 1, which is characterized in that: the coating thickness of the epoxy coating (2) is 300-500 um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922411849.9U CN212509848U (en) | 2019-12-28 | 2019-12-28 | Anticorrosive spiral steel pipe of heavy-calibre 3PE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922411849.9U CN212509848U (en) | 2019-12-28 | 2019-12-28 | Anticorrosive spiral steel pipe of heavy-calibre 3PE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212509848U true CN212509848U (en) | 2021-02-09 |
Family
ID=74386709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922411849.9U Expired - Fee Related CN212509848U (en) | 2019-12-28 | 2019-12-28 | Anticorrosive spiral steel pipe of heavy-calibre 3PE |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212509848U (en) |
-
2019
- 2019-12-28 CN CN201922411849.9U patent/CN212509848U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210209 Termination date: 20211228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |