CN102240631A - Painting process for small-tube-diameter double-polyurethane (2PE) anticorrosive steel tube - Google Patents
Painting process for small-tube-diameter double-polyurethane (2PE) anticorrosive steel tube Download PDFInfo
- Publication number
- CN102240631A CN102240631A CN2011101166547A CN201110116654A CN102240631A CN 102240631 A CN102240631 A CN 102240631A CN 2011101166547 A CN2011101166547 A CN 2011101166547A CN 201110116654 A CN201110116654 A CN 201110116654A CN 102240631 A CN102240631 A CN 102240631A
- Authority
- CN
- China
- Prior art keywords
- steel tube
- adhesive
- polyethylene
- tube
- steel pipe
- 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.)
- Pending
Links
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a painting process for a small-tube-diameter double-polyurethane (2PE) anticorrosive steel tube. The painting process comprises the following steps of: (1) performing surface treatment; (2) heating at intermediate frequency; (3) coating an adhesive and polyethylene; and (4) water-cooling. In the painting process, an anticorrosive layer is manufactured by adopting an adhesive and polyethylene extruding and coating process, so that the anticorrosive painting of the small-tube-diameter steel tube can be realized; the painting process has outstanding advantages of simpleness, good painting effect and high efficiency; furthermore, the anticorrosive layer has uniform thickness and higher tensile strength, peel strength, impact strength and bending resistance, so that the market requirement can be met.
Description
Technical field
The invention belongs to the anti-corrosive steel tube field, particularly a kind of tubule footpath 2PE anti-corrosive steel tube coating process.
Background technology
Anti-corrosive steel tube is widely used in pipeline engineering fields such as China's oil, chemical industry, natural gas, heating power, sewage disposal, water source, bridge, steel constructions.The 2PE anti-corrosive steel tube is at the anti-corrosive steel tube that refers to coat in steel tube surface adhesive and polyethylene double-layer structure, by in conjunction with the two premium properties, effectively improves resistance to chemical attack, anti-cathodic disbonding, anti-mechanical damage performance, and range of application is very extensive.At present, the production method of 2PE anti-corrosive steel tube is: twine adhesive in the steel tube surface side direction, side direction is twined polyethylene anticorrosive coating.In the winding process of adhesive and polyethylene anticorrosive coating, steel pipe adopts conveying device to push ahead.Existing wound form production method is applicable to the steel pipe application of caliber more than 500mm, but is unsuitable for the application of tubule footpath steel pipe.Trace it to its cause for: big caliber steel pipe own wt is big, and in rotary course of conveying, body is advanced steadily, and adhesive and polyethylene anticorrosive coating can steady rate steadily twine.But, for the steel pipe of caliber, because it has the advantages that length is big, diameter is little less than 500mm, in course of conveying, body very easily produces radial wobble, causes adhesive, polyethylene anticorrosive coating elasticity in the side direction winding process inconsistent, reduces the performance of the corrosion-inhibiting coating of steel pipe.Therefore, demand researching and developing a kind of coating process that is applicable to tubule footpath 2PE anti-corrosive steel tube urgently.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of tubule footpath 2PE anti-corrosive steel tube coating process that satisfies tubule footpath steel pipe corrosion-proof demand is provided, have the advantage that technology is simple, painting effect good, efficient is high.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of tubule footpath 2PE anti-corrosive steel tube coating process, it is characterized in that: the step of this coating process is:
(1). surface treatment: adopt compressed air shotblasting machine that steel tube surface is carried out processing of rust removing;
(2). heating in medium frequency: adopt frequency heating device that steel pipe is heated, the steel tube surface temperature reaches 185 ± 15 ℃;
(3). adhesive and polyethylene coat: adopt adhesive extruder and PE extruder that steel tube surface is coated adhesive and polyethylene simultaneously, form the 2PE anticorrosive coat in steel tube surface;
(4). water-cooled: adopt spray equipment that steel pipe is carried out the cold water spray, steel pipe sharply is cooled to below 60 ℃, make the anticorrosive coat typing.
And the adhesive extruder during described step (3) adhesive and polyethylene coat and the die orifice coaxial package of PE extruder are in the steel pipe outside.
Advantage of the present invention and good effect are:
This tubule footpath 2PE anti-corrosive steel tube coating process adopts adhesive and polyethylene to extrude cladding process and makes anticorrosive coat, realization is to the anticorrosive coating of tubule footpath steel pipe, has the outstanding advantage that technology is simple, painting effect good, efficient is high, anticorrosive coat thickness is even, have higher draw tensile strength, peel strength, impact strength and bending resistance, meet the need of market.
The specific embodiment
The invention will be further described below in conjunction with specific embodiment.Following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of tubule footpath 2PE anti-corrosive steel tube coating process, it is characterized in that: the step of this coating process is:
(1). surface treatment: adopt compressed air shotblasting machine that steel tube surface is carried out processing of rust removing, the steel tube surface temperature should be higher than dew point more than 3 ℃, otherwise answers preheating to eliminate moisture.
(2). heating in medium frequency: adopt frequency heating device that steel pipe is heated, the steel tube surface temperature reaches 185 ± 15 ℃, and voltage of intermediate frequency is 300kv, and IF-FRE is 970, and intermediate frequency power is 40 ± 10kw, and commutating voltage is 250 ± 10v, and rectified current is 180A.
(3). adhesive and polyethylene coat: adopt adhesive extruder and PE extruder that steel tube surface is coated adhesive and polyethylene simultaneously, form the 2PE anticorrosive coat in steel tube surface; The adhesive extruder during adhesive and polyethylene coat and the die orifice coaxial package of PE extruder are in the steel pipe outside.
(4). water-cooled: adopt spray equipment that steel pipe is carried out the cold water spray, steel pipe sharply is cooled to below 60 ℃, make the anticorrosive coat typing.
Steel pipe passes through compressed air shotblasting machine, frequency heating device, adhesive extruder die orifice and PE extruder die orifice successively under the drive of horizontal feed device, finish the application of 2PE anticorrosive coat.
Although disclose embodiments of the invention for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope that do not break away from the present invention and claims, various replacements, variation and modification all are possible, therefore, scope of the present invention is not limited to the disclosed content of embodiment.
Claims (2)
1. tubule footpath 2PE anti-corrosive steel tube coating process, it is characterized in that: the step of this coating process is:
(1). surface treatment: adopt compressed air shotblasting machine that steel tube surface is carried out processing of rust removing;
(2). heating in medium frequency: adopt frequency heating device that steel pipe is heated, the steel tube surface temperature reaches 185 ± 15 ℃;
(3). adhesive and polyethylene coat: adopt adhesive extruder and PE extruder that steel tube surface is coated adhesive and polyethylene simultaneously, form the 2PE anticorrosive coat in steel tube surface;
(4). water-cooled: adopt spray equipment that steel pipe is carried out the cold water spray, steel pipe sharply is cooled to below 60 ℃, make the anticorrosive coat typing.
2. tubule according to claim 1 footpath 2PE anti-corrosive steel tube coating process, it is characterized in that: the adhesive extruder during described step (3) adhesive and polyethylene coat and the die orifice coaxial package of PE extruder are in the steel pipe outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101166547A CN102240631A (en) | 2011-05-06 | 2011-05-06 | Painting process for small-tube-diameter double-polyurethane (2PE) anticorrosive steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101166547A CN102240631A (en) | 2011-05-06 | 2011-05-06 | Painting process for small-tube-diameter double-polyurethane (2PE) anticorrosive steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102240631A true CN102240631A (en) | 2011-11-16 |
Family
ID=44958986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101166547A Pending CN102240631A (en) | 2011-05-06 | 2011-05-06 | Painting process for small-tube-diameter double-polyurethane (2PE) anticorrosive steel tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102240631A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672204A (en) * | 2013-12-05 | 2014-03-26 | 江苏金波新材料科技有限公司 | Preparation method of composite pipe |
| CN103709961A (en) * | 2013-12-05 | 2014-04-09 | 江苏金波新材料科技有限公司 | Adhesive for composite tubes |
| CN107160651A (en) * | 2017-06-02 | 2017-09-15 | 太仓市勤红防腐设备有限公司 | The preparation method of oxygen-resistance type epoxy powder anti-corrosion steel pipe |
| CN110118291A (en) * | 2019-01-21 | 2019-08-13 | 宝鸡石油钢管有限责任公司 | A kind of novel continuous tube outer surface 2PE antisepsis production line and anticorrosion process |
-
2011
- 2011-05-06 CN CN2011101166547A patent/CN102240631A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672204A (en) * | 2013-12-05 | 2014-03-26 | 江苏金波新材料科技有限公司 | Preparation method of composite pipe |
| CN103709961A (en) * | 2013-12-05 | 2014-04-09 | 江苏金波新材料科技有限公司 | Adhesive for composite tubes |
| CN103672204B (en) * | 2013-12-05 | 2016-03-02 | 江苏金波新材料科技有限公司 | A kind of preparation method of composite pipe |
| CN103709961B (en) * | 2013-12-05 | 2016-06-15 | 江苏金波新材料科技有限公司 | A kind of binding agent of composite pipe |
| CN107160651A (en) * | 2017-06-02 | 2017-09-15 | 太仓市勤红防腐设备有限公司 | The preparation method of oxygen-resistance type epoxy powder anti-corrosion steel pipe |
| CN110118291A (en) * | 2019-01-21 | 2019-08-13 | 宝鸡石油钢管有限责任公司 | A kind of novel continuous tube outer surface 2PE antisepsis production line and anticorrosion process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102240630A (en) | Process for coating small-diameter 3-polyurethane (PE) antiseptic steel tube | |
| KR100887710B1 (en) | The aluminum tube and process for producing same | |
| CN102240631A (en) | Painting process for small-tube-diameter double-polyurethane (2PE) anticorrosive steel tube | |
| CN103341522A (en) | Production method of thick-walled titanium welded pipe and forming machine | |
| CN103542197A (en) | Anticorrosive coating production line and process for steel pipes | |
| CN104653946B (en) | Coiling type one-step corrosion preventing and heat preserving operating line of steel pipeline | |
| CN109210282A (en) | A kind of heavy caliber anti-corrosive steel tube and manufacture craft | |
| CN105397427A (en) | Production method for corrosion-resisting aluminum alloy high-frequency welded tube | |
| CN104112550A (en) | Manufacturing method for aluminum copper alloy enameled wire | |
| CN106925476A (en) | A kind of pipeline inside and outside coating all-in-one | |
| CN103465600A (en) | Side enwinding and coating method of small-pipe-diameter three-layer PE (poly ethylene) anticorrosion tube as well as auxiliary device | |
| CN104209719A (en) | Preparation method of titanium alloy steel pipe of heat exchanger | |
| CN202731763U (en) | Special corrosion-resistant oil tube for oil fields | |
| CN109003742A (en) | A kind of process equipment and technique of Metal Substrate graphene composite wire | |
| CN1789777A (en) | Three-layer cold-tape hot-winding corrosion preventing technology for steel pipe | |
| CN201867094U (en) | Anti-corrosive sleeve pipe type heat exchanger | |
| CN203062237U (en) | Continuous tube outer surface 3PE anti-corrosion production line | |
| CN103912760A (en) | Steel pipe anticorrosive coating processing technology | |
| CN101139719A (en) | Composite winding belt for steel pipe out-shell conservation and method for producing and using same | |
| CN106808720B (en) | A kind of processing technology of steel-belt-pipe | |
| CN203585589U (en) | Coating production line preventing steel pipe from corrosion | |
| CN1704639A (en) | Three-layer structured polypropylene anticorrosive technology for steel buried transportation pipe | |
| CN104907232A (en) | Method and equipment for producing surface treated cooling conductor | |
| CN115044746A (en) | Salt bath quenching and tempering heat treatment process method for spring steel wire | |
| CN212603557U (en) | Modular skid-mounted 3 PE/epoxy powder anti-corrosion pipe production line |
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: 20111116 |