CN207961776U - Corrosion-resistant plastic coated composite steel pipe - Google Patents
Corrosion-resistant plastic coated composite steel pipe Download PDFInfo
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- CN207961776U CN207961776U CN201820299321.XU CN201820299321U CN207961776U CN 207961776 U CN207961776 U CN 207961776U CN 201820299321 U CN201820299321 U CN 201820299321U CN 207961776 U CN207961776 U CN 207961776U
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- steel pipe
- corrosion
- pipe body
- coat
- epoxy resin
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Abstract
The utility model discloses a kind of corrosion-resistant plastic coated composite steel pipes,Its key points of the technical solution are that including steel pipe body,Interior coat and outer coat are coated in the steel pipe body,Between the steel pipe body and interior coat,Elastomeric state cushion rubber layer is equipped between steel pipe body and outer coat,The thickness of the elastomeric state cushion rubber layer is 0.3~0.6mm,The interior coat and outer coat are wear-and corrosion-resistant layer,The utility model has the advantage of interior coat and outer coat are set as wear-and corrosion-resistant layer,It can play a good protective effect to steel pipe body,Between steel pipe body and interior coat,Elastomeric state cushion rubber layer is set between steel pipe body and outer coat,Play the role of stretching buffering when the deformation difference for enabling to steel pipe with wear-and corrosion-resistant layer to occur,To avoid wear-and corrosion-resistant layer from rupturing.
Description
Technical field
The utility model is related to a kind of plastic coated composite steel pipes, more specifically, it relates to a kind of corrosion-resistant plastic coated composite steel
Pipe.
Background technology
Epoxy coating is widely used in the corrosion protection to steel pipe, but since epoxy resin is tridimensional network,
There are hole, keep its permeability resistance poor, external world's corrosion particle is easy to reach metal base surface by the hole of coating, and electricity occurs
Chemical reaction, to make its Corrosion Protection decline, the corrosion resistance of existing epoxy resin plastic-coated steel is not ideal enough, makes
Use short life.
Currently, the Chinese patent that application publication number is CN106010102A discloses a kind of long plastic-coated steel of service life,
It includes steel pipe and the plastic anti-corrosion layer coated in the steel tube surface, and the raw material of plastic anti-corrosion layer includes by weight：Phenolic aldehyde
32~40 parts of epoxy resin, 62~68 parts of bisphenol A type epoxy resin, 12~14 parts of compound rare-earth salt, nano silicon dioxide 38~
42 parts, 1~2 part of zeolite powder, 1.8~2.2 parts of levelling agent, 3~5 parts of pigment, 2~3 parts of phenols curing agent, 4~6 parts of auxiliary agent.This
The long plastic-coated steel of service life proposed is invented, there is excellent corrosion resistance, service life is long, and heat resistance is excellent
It is different, but since the plastic anti-corrosion layer compactness of the component is preferable so that its deformation space is smaller, under low temperature and hot environment,
Since it is different from the deformation quantity of steel pipe body, when expanding with heat and contract with cold, plastic anti-corrosion layer is different from the deformation quantity of steel pipe body
Plastic anti-corrosion layer can be caused to rupture, influence the service life of plastic coated composite steel pipe.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of corrosion-resistant plastic coated composite steels
Pipe.
To achieve the above object, the utility model adopts the following technical solution：A kind of corrosion-resistant plastic coated composite steel pipe, including
Steel pipe body is coated with interior coat and outer coat in the steel pipe body, between the steel pipe body and interior coat, steel
It is equipped with elastomeric state cushion rubber layer between tube body and outer coat, the thickness of the elastomeric state cushion rubber layer is 0.3~
0.6mm, the interior coat and outer coat are wear-and corrosion-resistant layer.
Preferably, the wear-and corrosion-resistant layer is novolac epoxy resin and bisphenol A type epoxy resin mixed coating.
Preferably, the thickness of the novolac epoxy resin and bisphenol A type epoxy resin mixed coating be 0.4~
0.65mm。
Preferably, the novolac epoxy resin and bisphenol A type epoxy resin mixed coating are opposite to each other in steel pipe body
The mixed-powder of compound rare-earth salt, nano silicon dioxide and zeolite powder is sprayed and is sintered on one side.
The utility model is compared compared with the prior art to be had：Interior coat and outer coat are set as wear-and corrosion-resistant layer, energy
It is enough to play a good protective effect to steel pipe body, between steel pipe body and interior coat, steel pipe body and outer coat it
Between elastomeric state cushion rubber layer is set, when deformation difference for enabling to steel pipe and wear-and corrosion-resistant layer to occur, which plays, stretches buffering
Effect, it is high in order to ensure the overall construction intensity of the corrosion-resistant plastic coated composite steel pipe to avoid wear-and corrosion-resistant layer from rupturing
Play state cushion rubber layer thickness be not easy it is blocked up, but in order to play good protecting effect, thickness be not easy to it is excessively thin, through examination
It tests, the thickness of 0.3~0.6mm is the most suitable.
Description of the drawings
Fig. 1 is the structural schematic diagram of the corrosion-resistant plastic coated composite steel pipe embodiment of the utility model.
In figure：1, steel pipe body；2, elastomeric state cushion rubber layer；3, wear-and corrosion-resistant layer.
Specific implementation mode
The corrosion-resistant plastic coated composite steel pipe embodiment of the utility model is described further below in conjunction with the accompanying drawings.
A kind of corrosion-resistant plastic coated composite steel pipe, including steel pipe body 1 are coated with interior coat and outer painting in steel pipe body 1
Coating is equipped with elastomeric state cushion rubber layer 2 between steel pipe body 1 and interior coat, between steel pipe body 1 and outer coat,
The thickness of elastomeric state cushion rubber layer 2 is 0.3~0.6mm, and interior coat and outer coat are wear-and corrosion-resistant layer 3.By interior painting
Coating and outer coat are set as wear-and corrosion-resistant layer 3, can play a good protective effect to steel pipe body 1, steel pipe body 1 with
Between interior coat, elastomeric state cushion rubber layer 2 is set between steel pipe body 1 and outer coat, enable to steel pipe with it is wear-resisting
Play the role of stretching buffering when the deformation difference that erosion resistant coating 3 occurs, to avoid wear-and corrosion-resistant layer 3 from rupturing, in order to protect
Demonstrate,prove the overall construction intensity of the corrosion-resistant plastic coated composite steel pipe, the thickness of elastomeric state cushion rubber layer 2 be not easy it is blocked up, but in order to rise
To good protecting effect, thickness is not easy to excessively thin, and through experiment, the thickness of 0.3~0.6mm is the most suitable
Wear-and corrosion-resistant layer 3 is novolac epoxy resin and bisphenol A type epoxy resin mixed coating.Novolac epoxy resin and bis-phenol
The thickness of A type epoxy resin mixed coatings is 0.4~0.65mm.Novolac epoxy resin and bisphenol A type epoxy resin mixed coating
It is sprayed in the one side of steel pipe body 1 opposite to each other and is sintered the mixed-powder of compound rare-earth salt, nano silicon dioxide and zeolite powder.
Since the molecular structure of nano silicon dioxide and zeolite powder has many superficiality such as coordination wretched insufficiency, big specific surface area
Matter cooperates with novolac epoxy resin, bisphenol A type epoxy resin, adhesive force, stretch-proof and the anticorrosion of the present invention can be improved
Etc. performances, while the corresponding rare earth oxide of compound rare-earth salt performance in roasting process be deposited in later stage whipping process
Cathodic region makes the corrosion of steel pipe be effectively suppressed.And in the structure of epoxy resin, on epoxy group, hydroxyl and ether oxygen base
The lone electron pair that non-bonding is all carried on oxygen atom, is easily acted on by electrophilic reagent, forms complex bonds；Novolac epoxy resin, bisphenol-A
Have multiple coordination atoms on type epoxy resin macromolecular structure, the oxygen atom of hydroxyl oxygen atom and ehter bond on macromolecular chain and
Epoxy oxygen atom is at a distance of relatively closely, and intermediate only every two carbon atoms, the rare earth oxide radius of steel tube surface is larger, makes phenolic aldehyde ring
Oxygen resin, bisphenol A type epoxy resin are easy to and the rare earth element with multiple unoccupied orbitals forms pentacyclic chelating, while huge legendary turtle ring
Number is more, and stability is bigger, novolac epoxy resin, bisphenol A type epoxy resin, nano silicon dioxide molecule and rare earth oxide
It cooperates and improves the heat-and corrosion-resistant performance of the present invention.
The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the scope of protection of the utility model, should refer to
Go out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (4)
1. a kind of corrosion-resistant plastic coated composite steel pipe, including steel pipe body, it is characterised in that：Interior painting is coated in the steel pipe body
Coating and outer coat are equipped with elastomeric state between the steel pipe body and interior coat, between steel pipe body and outer coat
The thickness of cushion rubber layer, the elastomeric state cushion rubber layer is 0.3~0.6mm, and the interior coat and outer coat are
Wear-and corrosion-resistant layer.
2. corrosion-resistant plastic coated composite steel pipe according to claim 1, it is characterised in that：The wear-and corrosion-resistant layer is phenolic aldehyde ring
Oxygen resin and bisphenol A type epoxy resin mixed coating.
3. corrosion-resistant plastic coated composite steel pipe according to claim 2, it is characterised in that：The novolac epoxy resin and bis-phenol
The thickness of A type epoxy resin mixed coatings is 0.4~0.65mm.
4. corrosion-resistant plastic coated composite steel pipe according to claim 2, it is characterised in that：The novolac epoxy resin and bis-phenol
A type epoxy resin mixed coating sprays in the one side of steel pipe body and has been sintered compound rare-earth salt, nano silicon dioxide opposite to each other
With the mixed-powder of zeolite powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820299321.XU CN207961776U (en) | 2018-03-05 | 2018-03-05 | Corrosion-resistant plastic coated composite steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820299321.XU CN207961776U (en) | 2018-03-05 | 2018-03-05 | Corrosion-resistant plastic coated composite steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207961776U true CN207961776U (en) | 2018-10-12 |
Family
ID=63741006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820299321.XU Active CN207961776U (en) | 2018-03-05 | 2018-03-05 | Corrosion-resistant plastic coated composite steel pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN207961776U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107381A (en) * | 2021-04-13 | 2021-07-13 | 皇俊奇 | High-toughness casing pipe for shale gas exploitation |
-
2018
- 2018-03-05 CN CN201820299321.XU patent/CN207961776U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107381A (en) * | 2021-04-13 | 2021-07-13 | 皇俊奇 | High-toughness casing pipe for shale gas exploitation |
| CN113107381B (en) * | 2021-04-13 | 2024-04-09 | 西安友兴能源科技有限公司 | Shale gas exploitation is with high toughness sleeve pipe |
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