CN202597929U - Composite coating anti-corrosion steel tube - Google Patents
Composite coating anti-corrosion steel tube Download PDFInfo
- Publication number
- CN202597929U CN202597929U CN 201220156604 CN201220156604U CN202597929U CN 202597929 U CN202597929 U CN 202597929U CN 201220156604 CN201220156604 CN 201220156604 CN 201220156604 U CN201220156604 U CN 201220156604U CN 202597929 U CN202597929 U CN 202597929U
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- steel tube
- corrosion
- composite coating
- corrosion steel
- coating anti
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- Expired - Fee Related
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- Rigid Pipes And Flexible Pipes (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model relates to an anti-corrosion steel tube, in particular to a composite coating anti-corrosion steel tube. The composite coating anti-corrosion steel tube comprises a steel tube body, wherein an epoxy powder coating layer, a polyolefin tackiness agent coating layer and a polyethylene coating layer are sequentially coated on an outer surface of the steel tube body. The composite coating anti-corrosion steel tube has high sealing performance, and can greatly reduce cost in the long run and protect environment. In addition, the composite coating anti-corrosion steel tube has strong anti-corrosion performance, corrosion-resisting and impact-resisting abilities are excellent even under low-temperature conditions, and poly ethylene (PE) water absorption rates are low.
Description
Technical field
The utility model relates to kind of an anti-corrosive steel tube, relates in particular to a kind of composite coating anti-corrosive steel tube.
Background technique
Increase along with China's oil refining industry processing high-sulphur crude quantity; What one-tenth branch such as the sulphur in the crude oil, hydrogen sulfide, sulfur monoxide produced becomes increasingly conspicuous to equipment and Corrosion of Pipeline problem; With the carbon steel be main material make like cool exchanging equipments and the pipeline that aggressive medium is arranged such as heat exchangers; There are electrochemical corrosion, high temperature corrosion and cause it to scrap too early, cause the waste of lot of materials, increase production cost of investment and unplanned loss of fixed assets and production safety hidden danger.
Pipeline corrosion protection through taking various means, is protected the metallic conduit of easy corrosion exactly, reaches the purpose that prolongs its working life, adopts usually that physics is anticorrosion, chemical preservation, electrochemical anti-corrosive or the like method.Yet present composite coating anti-corrosive steel tube antiseptic effect is unsatisfactory.
The model utility content
For solving the deficiency of existing technology, the utility model provides a kind of composite coating anti-corrosive steel tube.
The utility model is achieved through following technical proposals:
A kind of composite coating anti-corrosive steel tube comprises steel pipe, and said outer surface of steel tube is coated with epoxide powder coating layer, polyolefin adhesive coating and polyethylene coating successively.
Further, in the composite coating anti-corrosive steel tube, said epoxide powder coating layer thickness is 80～90um, and said polyolefin adhesive coating thickness is 170～250um, and said polyethylene coating thickness is 1000～2000um.
The technique effect of the utility model is following:
(1) pipeline has very high sealing, and long-time running can significantly reduce cost, the protection environment;
(2) very strong corrosion resistance, can reach 30-50 working life;
(3) under cryogenic conditions, also have good corrosion-resistant and impact resistance, the PE water absorption rate is low;
(4) it is high to possess epoxy intensity simultaneously, and the PE moisture absorption is low good etc. with the PUR ductility, and very high anticorrosion reliability is arranged;
(5) interlayer is combined, and it is effective that high temperature solidifies levelling down.
Description of drawings
Fig. 1 is the utility model composite coating anti-corrosive steel tube structure cut-away view.
Wherein, among the figure: l, steel pipe; 2, epoxide powder coating layer; 3, polyolefin adhesive coating; 4, polyethylene coating.
Embodiment
Below in conjunction with embodiment the utility model is further described.
As scheme shown in the l, a kind of composite coating anti-corrosive steel tube adopts industry conventional method to be coated with 80～90um epoxide powder coating layer 2,170～250um polyolefin adhesive coating 3 and 1000～2000um polyethylene coating 4 at steel pipe 1 outer surface successively.
The utility model structure is made up of following three-layer protection layer, and bottom is a fusion bonded epoxy, and the mesosphere is an adhesive, and surface layer is an extruded polyethylene, protective coating total thickness pact >=1.2mm.In three-decker, the main effect of clinkery epoxy powder coating is: form continuous filming, directly bond with steel tube surface, have good chemical resistance and antikathode stripping performance; Form chemical bonding with the active group reaction of mesosphere adhesive, guarantee that whole anticorrosive coat has good cohesiveencess under higher temperature.Polyolefin adhesive is adopted in the mesosphere; Can react generation hydrogen bond or chemical bond with the epoxide group of clinkery epoxy powder coating; Make mesosphere and bottom form good bonding, have good affinity interaction with surface layer simultaneously, so mesosphere and surface layer also have the advantages of good caking property ability.The main effect of polyethylene surface layer has been mechanical protection and antisepsis.
The utility model adopts three-layer protection, has the good technical effect:
(1) pipeline has very high sealing, and long-time running can significantly reduce cost, the protection environment;
(2) very strong corrosion resistance, can reach 30-50 working life;
(3) under cryogenic conditions, also have good corrosion-resistant and impact resistance, the PE water absorption rate is low;
(4) it is high to possess epoxy intensity simultaneously, and the PE moisture absorption is low good etc. with the PUR ductility, and very high anticorrosion reliability is arranged;
(5) interlayer is combined, and it is effective that high temperature solidifies levelling down.
It is to be noted; The utility model is not limited to above-mentioned mode of execution; Any simple modification, equivalent variations and modification that any professional and technical personnel of being familiar with does the foregoing description in based on the utility model technological scheme all belong in the protection domain of the utility model.
Claims (2)
1. the composite coating anti-corrosive steel tube comprises steel pipe, it is characterized in that: said outer surface of steel tube is coated with epoxide powder coating layer, polyolefin adhesive coating and polyethylene coating successively.
2. composite coating anti-corrosive steel tube according to claim 1 is characterized in that: said epoxide powder coating layer thickness is 80～90um, and said polyolefin adhesive coating thickness is 170～250um, and said polyethylene coating thickness is 1000～2000um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220156604 CN202597929U (en) | 2012-04-15 | 2012-04-15 | Composite coating anti-corrosion steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220156604 CN202597929U (en) | 2012-04-15 | 2012-04-15 | Composite coating anti-corrosion steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202597929U true CN202597929U (en) | 2012-12-12 |
Family
ID=47315469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220156604 Expired - Fee Related CN202597929U (en) | 2012-04-15 | 2012-04-15 | Composite coating anti-corrosion steel tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202597929U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033667A (en) * | 2013-03-08 | 2014-09-10 | 天源环保有限公司 | Special environment-friendly modified polymer composite tube |
| CN104930341A (en) * | 2015-06-08 | 2015-09-23 | 柳州市山泰气体有限公司 | Moisture-absorption corrosion-resistant inert gas container |
| CN106442721A (en) * | 2016-08-29 | 2017-02-22 | 山东胜伟园林科技有限公司 | Filter material wave tube obstruction positioning apparatus and positioning method |
| CN108980523A (en) * | 2018-09-27 | 2018-12-11 | 江苏清源管道技术有限公司 | A kind of high and cold pipeline composite anti-corrosive structure and preparation method |
-
2012
- 2012-04-15 CN CN 201220156604 patent/CN202597929U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033667A (en) * | 2013-03-08 | 2014-09-10 | 天源环保有限公司 | Special environment-friendly modified polymer composite tube |
| CN104930341A (en) * | 2015-06-08 | 2015-09-23 | 柳州市山泰气体有限公司 | Moisture-absorption corrosion-resistant inert gas container |
| CN106442721A (en) * | 2016-08-29 | 2017-02-22 | 山东胜伟园林科技有限公司 | Filter material wave tube obstruction positioning apparatus and positioning method |
| CN108980523A (en) * | 2018-09-27 | 2018-12-11 | 江苏清源管道技术有限公司 | A kind of high and cold pipeline composite anti-corrosive structure and preparation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20140415 |