CN201851840U - Composite steel pipe with zinc-galvanized exterior and plastic-coated interior - Google Patents

Composite steel pipe with zinc-galvanized exterior and plastic-coated interior Download PDF

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Publication number
CN201851840U
CN201851840U CN2010205823892U CN201020582389U CN201851840U CN 201851840 U CN201851840 U CN 201851840U CN 2010205823892 U CN2010205823892 U CN 2010205823892U CN 201020582389 U CN201020582389 U CN 201020582389U CN 201851840 U CN201851840 U CN 201851840U
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CN
China
Prior art keywords
steel pipe
zinc
plastic
composite steel
galvanized
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010205823892U
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Chinese (zh)
Inventor
黄益衬
杜广林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANJIN QINGHUA HENGSEN PIPELINE MANUFACTURING Co Ltd
Original Assignee
TIANJIN QINGHUA HENGSEN PIPELINE MANUFACTURING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TIANJIN QINGHUA HENGSEN PIPELINE MANUFACTURING Co Ltd filed Critical TIANJIN QINGHUA HENGSEN PIPELINE MANUFACTURING Co Ltd
Priority to CN2010205823892U priority Critical patent/CN201851840U/en
Application granted granted Critical
Publication of CN201851840U publication Critical patent/CN201851840U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a composite steel pipe with zinc-galvanized exterior and plastic-coated interior, which is implemented according to the following technical scheme and comprises a steel pipe. The composite steel pipe is characterized in that the outer circumferential surface of the steel pipe is provided with a zinc-galvanized layer, and the inner circumferential surface of the steel pipe is provided with a polyester coating or an epoxy resin coating. The composite steel pipe has better anticorrosion property, not only has the advantage of convenient installation process of the zinc plated pipe, but also has higher the anti-corrosion capability than that of the traditional zinc-galvanized pipe.

Description

External galvanized layer internal plastic coating composite steel tube
Technical field
The utility model relates to indoor and outdoor water-feeding pipes field, more particularly, relates to anti-corrosion pipeline and gives water problems.
Background technique
Present China rapid economic development, various products are abundanter, and 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 performance, determine unified use, select for use with construction requirement etc. by checking product 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 as 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 easily 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 situations 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 energy adaptation to the ground complexity and having relatively high expectations of the weldability of pipe shaft uses.Perishable is its disadvantage.They in use generally all need to do anti-corrosion treatment, use excellent anti-corrosion material, and the time limit of their uses is also very long like this.
The model utility content
Technical problem to be solved in the utility model is, overcomes the deficiencies in the prior art, and a kind of external galvanized layer internal plastic coating composite steel tube is provided.
The utility model external galvanized layer internal plastic coating composite steel tube is achieved by following technical proposals, comprises steel pipe tubing, it is characterized in that, described 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.
The utility model composite pipe 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 the utility model schematic cross-section.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1, described 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 utility model is compared with Coating Steel Pipe to have on the water delivery protection wall and moulded layer, has possessed the series of advantages such as the good antiseptic property of plastic tube, and is acidproof, alkaline-resisting, the intensity height, 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 by 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 is described the utility model preferred implementation; be not that design of the present utility model and scope are limited; under the prerequisite that does not break away from the utility model design philosophy; common engineers and technicians make the technical solution of the utility model in related domain various distortion and improvement all should belong to protection domain of the present utility model.

Claims (1)

1. an external galvanized layer internal plastic coating composite steel tube comprises steel pipe tubing, it is characterized in that, described 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.
CN2010205823892U 2010-10-29 2010-10-29 Composite steel pipe with zinc-galvanized exterior and plastic-coated interior Expired - Fee Related CN201851840U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205823892U CN201851840U (en) 2010-10-29 2010-10-29 Composite steel pipe with zinc-galvanized exterior and plastic-coated interior

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205823892U CN201851840U (en) 2010-10-29 2010-10-29 Composite steel pipe with zinc-galvanized exterior and plastic-coated interior

Publications (1)

Publication Number Publication Date
CN201851840U true CN201851840U (en) 2011-06-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205823892U Expired - Fee Related CN201851840U (en) 2010-10-29 2010-10-29 Composite steel pipe with zinc-galvanized exterior and plastic-coated interior

Country Status (1)

Country Link
CN (1) CN201851840U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102797927A (en) * 2012-07-27 2012-11-28 联塑市政管道(河北)有限公司 Novel pipe fitting and manufacturing method thereof
CN103542194A (en) * 2013-10-15 2014-01-29 江苏常盛管业有限公司 Corrosion-resistant galvanized steel tube
CN114321516A (en) * 2021-12-30 2022-04-12 无锡恒丰祥钢管科技有限公司 Composite steel pipe and manufacturing method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102797927A (en) * 2012-07-27 2012-11-28 联塑市政管道(河北)有限公司 Novel pipe fitting and manufacturing method thereof
CN103542194A (en) * 2013-10-15 2014-01-29 江苏常盛管业有限公司 Corrosion-resistant galvanized steel tube
CN114321516A (en) * 2021-12-30 2022-04-12 无锡恒丰祥钢管科技有限公司 Composite steel pipe and manufacturing method thereof

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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: 20110601

Termination date: 20131029