CN102454833A - Externally-galvanized internally-plastic-coated composite steel tube - Google Patents
Externally-galvanized internally-plastic-coated composite steel tube Download PDFInfo
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- CN102454833A CN102454833A CN2010105241720A CN201010524172A CN102454833A CN 102454833 A CN102454833 A CN 102454833A CN 2010105241720 A CN2010105241720 A CN 2010105241720A CN 201010524172 A CN201010524172 A CN 201010524172A CN 102454833 A CN102454833 A CN 102454833A
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- galvanized
- steel tube
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Abstract
The invention provides an externally-galvanized internally-plastic-coated composite steel tube, and aims to overcome the defects in the prior art. The technical scheme for implementing the externally-galvanized internally-plastic-coated composite steel tube is as follows: a galvanizing layer is arranged on the external circumferential surface of the steel tube, and the internal circumferential surface of the steel tube is provided with a polyethylene coating or epoxy coating. The composite tube provided by the invention has favorable corrosion resistance, has the advantage of convenient mounting technique in the galvanized tube, and also has higher antiorrosion capability than the traditional galvanized tube.
Description
Technical field
The present invention relates to indoor and outdoor water-feeding pipes field, more particularly, relate to anti-corrosion pipeline and give water problems.
Background technique
Present China rapid economic development, various product rich, living standards of the people improve constantly.But the most basic human daily life problem of water consumption also often perplexs us, especially influences the tubing problem of one of indoor and outdoor feedwater water quality key factor.Be that the water-feeding pipes kind is very various on the one hand, need, confirm unified use, select for use with construction requirement etc. through checking performance of products on probation.
Past China's water-feeding pipes has experienced also that kind is single, sanitary standard is low, slow development
Course adopts traditional Coating Steel Pipe like feedwater piping, because of it has good intensity, rigidity and impact resistance, but also has higher heatproof, compressive strength and unique self-healing property, and is widely used in industry and building water supply pipeline.
But traditional Coating Steel Pipe is in use because its antiseptic property is relatively poor, corrosion is serious, and easy fouling and grow microorganism.So cause water pollution easily, cause ductwork water quality to worsen, the stream yellow water appears, bacterial number exceeds standard and fouling obstruction or section dwindle situation such as resistance increase.Even Coating Steel Pipe is under situation about safeguarding, be at 8-10 its working life only, and the quality of life that this not only directly influences the resident causes the huge waste of water resources, has also increased the maintenance expenses of pipeline.
We know that the mechanical strength of steel pipe is best, can bear high external and internal pressure, and the convenient pipeline of making various pipe fittings, special ability adaptation to the ground complicacy and having relatively high expectations of the weldability of pipe shaft uses.Perishable is its disadvantage.They in use generally all need do anti-corrosion treatment, use excellent anti-corrosion material, and the time limit of their uses is also very long like this.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the deficiency that exists in the existing technology, and a kind of external galvanized layer internal plastic coating composite steel tube is provided.
External galvanized layer internal plastic coating composite steel tube of the present invention is achieved through following technical proposals, comprises steel pipe tubing, it is characterized in that, said steel pipe tubing outer circumferential face is provided with zinc coat, and steel pipe tubing inner peripheral surface is provided with polyethylene coating or epoxy coating.
Composite pipe of the present invention is a kind of reasonable anticorrosion tubing, and it had both inherited the technology easy for installation of galvanized pipe, improves antiseptic power than traditional galvanized pipe again.The excellent properties of feedwater plastic coated composite steel pipe has: (1) safety and sanitary, and cheap.(3) the media flow resistance is lower than steel pipe 40%.(2) developed on the one hand that the anti-high bearing capacity of Coating Steel Pipe (2.5MPa), anti-high impact force, Applicable temperature scope are wide, intensity is than advantages such as height.
Description of drawings
Fig. 1 is a schematic cross-section of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is done and to further describe.
As shown in Figure 1, said steel pipe tubing 1 outer circumferential face is provided with zinc coat 2, and steel pipe tubing inner peripheral surface is provided with polyethylene coating or epoxy coating 3.
The present invention compares with Coating Steel Pipe to have on the water delivery protection wall and moulds layer, has possessed the series of advantages such as the good antiseptic property of plastic tube, and acidproof, alkaline-resisting, intensity is high, and thermal conductivity is low, long service life etc.And expansion coefficient will be far smaller than lining plastic-steel plastic composite, and undercoating is less than plastic tube thickness, and its production is that stress ratio is less through PE plastic grain or its surface of EP plastic-coated, and long-time use can not make coating break away from and peel off.
Embodiment recited above describes the preferred embodiment for the present invention; Be not that design of the present invention and scope are limited; Under the prerequisite that does not break away from design philosophy of the present invention; Common engineers and technicians make technological scheme of the present invention in related domain various distortion and improvement all should belong to protection scope of the present invention.
Claims (1)
1. an external galvanized layer internal plastic coating composite steel tube comprises steel pipe tubing, it is characterized in that, said steel pipe tubing outer circumferential face is provided with zinc coat, and steel pipe tubing inner peripheral surface is provided with polyethylene coating or epoxy coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105241720A CN102454833A (en) | 2010-10-29 | 2010-10-29 | Externally-galvanized internally-plastic-coated composite steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105241720A CN102454833A (en) | 2010-10-29 | 2010-10-29 | Externally-galvanized internally-plastic-coated composite steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102454833A true CN102454833A (en) | 2012-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105241720A Pending CN102454833A (en) | 2010-10-29 | 2010-10-29 | Externally-galvanized internally-plastic-coated composite steel tube |
Country Status (1)
| Country | Link |
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| CN (1) | CN102454833A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679053A (en) * | 2012-05-24 | 2012-09-19 | 山东龙泉管道工程股份有限公司 | Lining type prestress steel cylinder concrete pipe with corrosion layer on surfaces of steel cylinder and pipe |
| CN102705594A (en) * | 2012-06-29 | 2012-10-03 | 山东龙泉管道工程股份有限公司 | Lining type prestress steel cylinder concrete pipe subjected to comprehensive antiseptic treatment |
| CN102705593A (en) * | 2012-06-29 | 2012-10-03 | 山东龙泉管道工程股份有限公司 | Embedded prestress steel cylinder concrete pipe subjected to comprehensive antiseptic treatment |
| CN102734568A (en) * | 2012-06-29 | 2012-10-17 | 山东龙泉管道工程股份有限公司 | Long-life lining type prestressed concrete cylinder pipe subjected to multilayer anti-corrosive treatment |
| CN103807567A (en) * | 2014-02-24 | 2014-05-21 | 芜湖鑫力管道技术有限公司 | Internal plastic spraying composite galvanized pipe |
-
2010
- 2010-10-29 CN CN2010105241720A patent/CN102454833A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679053A (en) * | 2012-05-24 | 2012-09-19 | 山东龙泉管道工程股份有限公司 | Lining type prestress steel cylinder concrete pipe with corrosion layer on surfaces of steel cylinder and pipe |
| CN102705594A (en) * | 2012-06-29 | 2012-10-03 | 山东龙泉管道工程股份有限公司 | Lining type prestress steel cylinder concrete pipe subjected to comprehensive antiseptic treatment |
| CN102705593A (en) * | 2012-06-29 | 2012-10-03 | 山东龙泉管道工程股份有限公司 | Embedded prestress steel cylinder concrete pipe subjected to comprehensive antiseptic treatment |
| CN102734568A (en) * | 2012-06-29 | 2012-10-17 | 山东龙泉管道工程股份有限公司 | Long-life lining type prestressed concrete cylinder pipe subjected to multilayer anti-corrosive treatment |
| CN102734568B (en) * | 2012-06-29 | 2014-11-26 | 山东龙泉管道工程股份有限公司 | Long-life lining type prestressed concrete cylinder pipe subjected to multilayer anti-corrosive treatment |
| CN103807567A (en) * | 2014-02-24 | 2014-05-21 | 芜湖鑫力管道技术有限公司 | Internal plastic spraying composite galvanized pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120516 |