CN206280616U - Anticorrosion plastic coated composite steel pipe - Google Patents
Anticorrosion plastic coated composite steel pipe Download PDFInfo
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- CN206280616U CN206280616U CN201621402930.0U CN201621402930U CN206280616U CN 206280616 U CN206280616 U CN 206280616U CN 201621402930 U CN201621402930 U CN 201621402930U CN 206280616 U CN206280616 U CN 206280616U
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- steel pipe
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- epoxy resin
- resin powder
- coated composite
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Abstract
A kind of anticorrosion plastic coated composite steel pipe of the utility model, including steel pipe, the first epoxy resin powder coating is provided with the inside of steel pipe, 3PE coatings are provided with the outside of steel pipe, 3PE coatings include the second epoxy resin powder coating, adhesive and polyethylene coating, second epoxy resin powder coating is located at the outer surface of steel pipe, and adhesive is located between the second epoxy resin powder coating and polyethylene coating.The technical problems to be solved in the utility model is to provide the good anticorrosion plastic coated composite steel pipe of a kind of plastic-coated simple to operate, high temperature resistant, easily peelable, antiseptic property.
Description
Technical field
The utility model is related to steel to mould Manifold technology field, more particularly to a kind of anticorrosion plastic coated composite steel pipe.
Background technology
In the prior art, the outer anti-corrosion for steel pipe mainly uses adhesive tape anti-corrosion, interior anti-corrosion mainly to use H87 liquid
Coating, its shortcoming and defect is mainly：
1st, anti-corrosion in H87 liquid coatings：Paint film has impervious well to water, crude oil, product oil and various corrosive mediums
Permeability, rustless property is excellent, and is resistant to 100 DEG C of high temperature, can be used for the interior anti-corrosion of the pipelines such as oil transportation, water, but it is anti-as one kind
Rotten coating, adhesive force, hardness of paint film, wear resistence, antiacid caustic corrosion are less desirable, be in eliminate edge at present；
2nd, the outer anti-corrosion of adhesive tape：Adhesive tape anticorrosive construction is simple, is not required to heating, and easy to operate, anti-corrosion is with low cost, but adhesive tape is anti-
Corruption easily forms anticorrosive coating peeling in pipe weld high spot, also poor in the bonding force of adhesive tape lap-joint, easily causes stripping；Primer
Quality is unstable, and glue-line is soft, anti-soil stress difference；And the anti-ability of colliding with of adhesive tape anticorrosive coat, it is relatively low to add its mechanical strength, resistance to
Mill property and shock resistance are poor, easily form bare spot, and peel strength is difficult to reach requirement, especially oil field Duo Shi salt-soda soils, reed
The clump of reeds gives birth to, and the disconnected stubble of reed and sharp stone, fragment of brick easily penetrate adhesive tape anticorrosive coat, and bare spot is difficult to avoid, simultaneously because glue
Band anti-corrosion peel strength is low, and the isolating power to empty gas and water is poor, under saline and alkaline environment, corrosion rate quickly, therefore to pipeline
With extremely strong corrosive power.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of plastic-coated simple to operate, high temperature resistant, easily peelable, anti-corrosive properties
The good anticorrosion plastic coated composite steel pipe of energy.
A kind of anticorrosion plastic coated composite steel pipe of the utility model, including steel pipe, are provided with the first epoxy on the inside of the steel pipe
Toner coating, is provided with 3PE coatings on the outside of the steel pipe, the 3PE coatings include the second epoxy resin powder coating, glue
Stick and polyethylene coating, second epoxy resin powder coating are located at the outer surface of the steel pipe, the adhesive position
Between second epoxy resin powder coating and polyethylene coating.
The utility model anticorrosion plastic coated composite steel pipe, wherein the thickness of second epoxy resin powder coating is at least
120μm。
The utility model anticorrosion plastic coated composite steel pipe, wherein the thickness of the adhesive is at least 170 μm.
The utility model anticorrosion plastic coated composite steel pipe, wherein the thickness of the polyethylene coating is 2.5~3.7mm.
The utility model anticorrosion plastic coated composite steel pipe, wherein the polyethylene coating is high-density polyethylene ene coatings.
The utility model anticorrosion plastic coated composite steel pipe, wherein the steel pipe is seamless steel pipe, steel pipes with straight or spiral steel
In pipe any one.
Compared with prior art, the utility model has the advantage that and has the beneficial effect that：
(1) the utility model outside all plastic-coateds in steel pipe have corrosion-inhibiting coating, and inner side to be applied for the first epoxy powder
Layer, the first epoxy resin powder coating has hardening time short, and adhesive force is strong, and durability is good, and anti-soil stress is good, cathodic disbonding
Radius is small, high temperature resistant, and the advantages of acidproof alkaline media, outside uses 3PE coatings, and 3PE coatings have that cohesive force is strong, insulating properties
Good, low, water-fast water absorption rate, acid-alkali-corrosive-resisting, ageing-resistant, shock resistance, anti-soil stress, pliability are good, antikathode peeling force is strong
With excellent mechanical performance, be combined together for two kinds of coatings by the utility model, and plastic-coated is inside and outside steel pipe, while improving
Anti- antiseptic property inside and outside steel pipe, increased the resistance to corrosion of steel pipeline；
(2) epoxy coating hardening time is short, and adhesive force is strong, thus its have when plastic-coated is in steel tube surface it is easy to operate
Advantage, improve operating efficiency；
(3) 3PE coatings include the second epoxy resin powder coating, adhesive and polyethylene coating, the second epoxy resin powder
Last coating is firmly combined with steel tube surface, and adhesive closely combines polyethylene coating and the second epoxy resin powder coating
Together, make polyethylene coating and the second epoxy resin powder coating high strength bonding, and form composite construction, so as to realize anti-corrosion
Performance, the good combination of mechanical property, enhance steel pipe corrosion resistance, improve the overall quality of anti-corrosion pipeline.
Anticorrosion plastic coated composite steel pipe of the present utility model is described further below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the corrosion-proof plastic-coated composite steel tube of the utility model；
Wherein：1st, the first epoxy resin powder coating；2nd, steel pipe；3rd, the second epoxy resin powder coating；4th, adhesive；5、
Polyethylene coating.
Specific embodiment
As shown in figure 1, a kind of anticorrosion plastic coated composite steel pipe of the utility model, including steel pipe 2, steel pipe 2 be seamless steel pipe,
In steel pipes with straight or spiral steel pipe any one.
The inner side of steel pipe 2 is provided with the first epoxy resin powder coating 1, and the outside of steel pipe 2 is provided with 3PE coatings, 3PE coating bags
The second epoxy resin powder coating 3, adhesive 4 and polyethylene coating 5 are included, polyethylene coating 5 is high-density polyethylene ene coatings, the
Diepoxy resin powder coating 3 is located at the outer surface of steel pipe 2, and adhesive 4 is located at the second epoxy resin powder coating 3 and poly- second
Between ene coatings 5, polyethylene coating 5 is wrapped in the outer surface of adhesive 4 by the way of lateral winding, and by pressure guiding system
Rolling, makes outer surface into spiral lamination, both ensure that the thickness of polyethylene coating 5 is uniform, and with more preferably antiseptic effect, second
The thickness of epoxy resin powder coating 3 is at least 120 μm, and the thickness of adhesive 4 is at least 170 μm, the thickness of polyethylene coating 5
It is 2.5~3.7mm.
First epoxy resin powder coating 1 and the second epoxy resin powder coating 3 belong to thermosetting anticorrosive paint, due to not having
There is organic solvent, do not consider fire prevention during construction, free from environmental pollution, spillage of material is few, and utilization rate reaches more than 95%, and coating
Short with hardening time, adhesive force is strong, and durable mill property is good, and anti-soil stress is good, and cathodic disbonding radius is small, high temperature resistant, acid and alkali-resistance
The advantages of medium.
In 3PE coatings, the second epoxy resin powder coating 3 is firmly combined with the surface of steel pipe 2, and high density polyethylene (HDPE) has good
The performance that good mechanical resistant is damaged, adhesive 4 closely combines the epoxy resin powder coating 3 of polyethylene coating 5 and second
Together, make the high strength bonding of 5 and second epoxy resin powder coating of polyethylene coating 3, and form composite construction, so as to realize preventing
Rotten performance, the good combination of mechanical property, with cohesive force is strong, good insulation preformance, low, water-fast water absorption rate, acid-alkali-corrosive-resisting, resistance to
Aging, shock resistance, anti-soil stress, the mechanical performance that pliability is good, antikathode peeling force is strong and excellent, enhance outside steel pipe 2
The corrosion resistance of side, improves the overall quality of anti-corrosion pipeline.
Be combined together for two kinds of coatings by the utility model, and plastic-coated is inside and outside steel pipe 2, while improve steel pipe 2
Inside and outside anti-antiseptic property, increased the resistance to corrosion of steel pipeline
When the spraying of steel pipe 2 is carried out, the first epoxy resin powder coating 1 uses electrostatic painting process plastic-coated to the utility model
In the inner surface of steel pipe 2, according to the performance of epoxy coating, epoxy coating hardening time is short, and adhesive force is strong, thus its
Plastic-coated has easy-operating advantage at 2 surface of steel pipe, improves operating efficiency, one-pass film-forming；3PE coatings are being sprayed
When, in the surface electrostatic painting process of steel pipe 2 by the plastic-coated of the second epoxy resin powder coating 3 in the outer surface of steel pipe 2, the side of adhesive 4
To the second epoxy resin powder coating 3 of winding, polyethylene coating 5 is laterally wrapped on adhesive 4,3PE coating combination asphalt mixtures modified by epoxy resin
The premium properties of fat coating, adhesive 4 and the three of polyethylene coating 5, significantly increases the antiseptic property of steel pipe 2, improves steel pipe 2
Overall quality, long service life.
Embodiment described above is only that preferred embodiment of the present utility model is described, not to this practicality
New scope is defined, and on the premise of the utility model design spirit is not departed from, those of ordinary skill in the art are to this
Various modifications and improvement that the technical scheme of utility model is made, all should fall into the protection of the utility model claims determination
In the range of.
Claims (6)
1. a kind of anticorrosion plastic coated composite steel pipe, including steel pipe, it is characterised in that：The first asphalt mixtures modified by epoxy resin is provided with the inside of the steel pipe
Fat powder coating, is provided with 3PE coatings on the outside of the steel pipe, the 3PE coatings include the second epoxy resin powder coating, gluing
Agent and polyethylene coating, second epoxy resin powder coating are located at the outer surface of the steel pipe, and the adhesive is located at
Between second epoxy resin powder coating and polyethylene coating.
2. anticorrosion plastic coated composite steel pipe according to claim 1, it is characterised in that：Second epoxy powder is applied
The thickness of layer is at least 120 μm.
3. anticorrosion plastic coated composite steel pipe according to claim 1, it is characterised in that：The thickness of the adhesive is at least
170μm。
4. anticorrosion plastic coated composite steel pipe according to claim 1, it is characterised in that：The thickness of the polyethylene coating is
2.5~3.7mm.
5. the anticorrosion plastic coated composite steel pipe according to claim 1 or 4, it is characterised in that：The polyethylene coating is height
Density polyethylene coating.
6. anticorrosion plastic coated composite steel pipe according to claim 1, it is characterised in that：The steel pipe is seamless steel pipe, straight
Stitch any one in steel pipe or spiral steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621402930.0U CN206280616U (en) | 2016-12-20 | 2016-12-20 | Anticorrosion plastic coated composite steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621402930.0U CN206280616U (en) | 2016-12-20 | 2016-12-20 | Anticorrosion plastic coated composite steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206280616U true CN206280616U (en) | 2017-06-27 |
Family
ID=59073088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621402930.0U Active CN206280616U (en) | 2016-12-20 | 2016-12-20 | Anticorrosion plastic coated composite steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206280616U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028155A (en) * | 2021-03-25 | 2021-06-25 | 湖南前元新材料有限公司 | Plastic-coated composite steel pipe, coating mechanism for preparing steel pipe and preparation process |
| CN113028155B (en) * | 2021-03-25 | 2024-04-19 | 湖南前元新材料有限公司 | Plastic-coated composite steel pipe, coating mechanism for preparing steel pipe and preparation process |
-
2016
- 2016-12-20 CN CN201621402930.0U patent/CN206280616U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028155A (en) * | 2021-03-25 | 2021-06-25 | 湖南前元新材料有限公司 | Plastic-coated composite steel pipe, coating mechanism for preparing steel pipe and preparation process |
| CN113028155B (en) * | 2021-03-25 | 2024-04-19 | 湖南前元新材料有限公司 | Plastic-coated composite steel pipe, coating mechanism for preparing steel pipe and preparation process |
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