CN101059186A - Plastic-coated steel pipe for electrophoresis and its electrophoretic painting method and whole set apparatus - Google Patents
Plastic-coated steel pipe for electrophoresis and its electrophoretic painting method and whole set apparatus Download PDFInfo
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- CN101059186A CN101059186A CN 200710052275 CN200710052275A CN101059186A CN 101059186 A CN101059186 A CN 101059186A CN 200710052275 CN200710052275 CN 200710052275 CN 200710052275 A CN200710052275 A CN 200710052275A CN 101059186 A CN101059186 A CN 101059186A
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Abstract
The present invention involves a steel pipe and the production method of the pipe and the equipment, specifically it is a electrophoretic plastic-nested steel pipe and the electrophoretic coating technical method of the electrophoretic plastic-nested steel pipe and the complete equipment. It consists of steel pipes, it is characterized by: the inner wall and the outer wall of steel pipe are both electrophoresed a layer of electrophoretic material, the inner wall of steel pipe is lined with plastic pipe. The method in the invention includes cathodic electrophoretic technology and anodic electrophoretic technology, among them, in the cathodic electrophoretic technology, the deep hole inner of steel pipe is equipped with an auxiliary anode; in the anodic electrophoretic technology, the deep hole inner of steel pipe is equipped with an auxiliary cathode. The invention solves the electrophoretic processing problem of steel pipe inner and outer walls, thereby thoroughly solves the inner and outer walls antiseptic issue of the workpieces. The electrophoretic plastic-nested steel pipe in the invention can be used for the transmission of various fluids widly, and it has excellent corrosion resistance performance.
Description
Technical field
The present invention relates to a kind of steel pipe and this steel tube producing method and equipment, the electrophoresis application technique method and the complete sets of equipment of specifically a kind of electrophoretic plastic-nested steel pipe and electrophoretic plastic-nested steel pipe.
Background technique
Pipeline transport is one of current five big means of transportation, and it has become the main means of transportation of oil and natural gas.At present, in the world oil and gas pipeline always be about 2,000,000 km, the total length of China's long-distance transmission pipeline is about 20,000 km.Key state project " western gas east goes out " engineering, trunk line pipeline total length 4167km, its main pipe is invested 38,400,000,000 yuan, adds the urban pipe network investment and will break through 1,000 hundred million yuan.The pipeline that is used for pipeline transport at present generally all adopts metal steel pipe and plastic, rubber pipeline, and the metallic steel pipe has the high advantage of intensity and is fit to remote transportation, but it has the shortcoming of corrosion-resistant; The plastic, rubber pipeline has the high advantage of corrosion resistance, and only suitable short distance is carried but it has the low shortcoming of intensity.Therefore the anticorrosion problem that solves steel pipe is the important topic that those skilled in the art faces.Now generally adopt the cover of plastic tube on the plating zinc on surface inner wall sleeve to mould galvanized pipe, or on common steel tube, apply anticorrosive paint and reach the corrosion-resistant purpose.The shortcoming of this method is the easy oxide etch of the zinc coat of Coating Steel Pipe and peels off, and can cause secondary pollution, and country is also progressively banning use of.There is easy aging the peeling off of anticorrosive coat equally in the common steel tube that is coated with anticorrosive paint, causes short defective in working life.Particularly higher to the requirement for anticorrosion of the inside and outside wall of pipeline for some complicated fluids, it is very long to use the longevity people to require, and cover is moulded galvanized pipe and then do not reached this requirement.
Electrophoresis application technique is since the nineteen sixties development and obtaining industrial applications, because it has good highly corrosion resistant, high permeability ratio, high coulomb efficiency, do not dissolve coated article, tank liquor is stable and advantage such as automaticity height, therefore obtain extensive use at automobile, motorcycle, household electric appliance, instrument, military project, building materials, decoration five, light industry and industry such as daily, progressively replace conventional external coating technology, and become one of most important application techniques mode in the world today.
Present electrophoresis application technique mainly is to adopt common electrophoretic process method, the general Workpiece structure of electrophoretic process is simple, the workpiece of easy application, but owing to the influence of the throwing power that is subjected to electrophoretic coating and the influence of electrical efficiency, at tube type metal spare (as iron pipe, galvanized pipe, the tubular type part of steel pipe and other metallic conductor) inside preservative treatment and then can't be with the processing of conventional electrophoretic techniques through the anticorrosion of the nonmetal electrically conducting member conductor of special processing, and other processing method can not solve the anticorrosion problem of the inside and outside wall of this base part preferably.
Summary of the invention
Purpose of the present invention is exactly the defective at existing method, and the electrophoresis application technique method and the complete sets of equipment of a kind of electrophoretic plastic-nested steel pipe and electrophoretic plastic-nested steel pipe is provided, and it has thoroughly solved the anticorrosion problem of metal steel pipe inner and outer walls.
The objective of the invention is to be achieved through the following technical solutions: it comprises steel pipe, it is characterized in that: at the equal electrophoresis of inner and outer wall of steel pipe one deck electrophoretic coating, the inwall of steel pipe is lined with plastic bushing.
Wherein said steel pipe is iron pipe, Coating Steel Pipe; Described electrophoretic coating comprises thermohardening lacquer or light sensitivity coating; In described electrophoretic coating interpolation dyestuff, pigment, filler or the auxiliary agent one or more; Described electrophoretic coating comprises water white transparency, and mute light is colourless, black, grey, white, all kinds of colours of red, yellow, green, blue, and the electrophoretic coating of flash of light look or pearly-lustre look; Described electrophoretic coating is specially and is in polybutadiene, phenolic resin, epoxy resin, acrylic resin or the polyamine fat one or more.
Electrophoresis application technique method of the present invention comprises ability cathode electrophoresis technology and two kinds of methods of anodic electrophoresis process, wherein: when ability cathode electrophoresis technology, put into an auxiliary anode in the deep hole inside of steel pipe; When anodic electrophoresis process, put into an auxiliary cathode in the deep hole inside of steel pipe.By negative electrode or anodic electrophoresis, at steel pipe inner and outer walls electrophoresis one deck electrophoretic coating, then at plastic bushing of interior wall liner.
The steel pipe of the inventive method application is iron pipe, galvanized pipe; Employed electrophoretic coating is one or more in polybutadiene, phenolic resin, epoxy resin, acrylic resin or the polyamine fat resin; Employed electrophoretic coating has comprised the electrophoretic coating that has added filler or auxiliary agent.Described electrophoretic coating comprises water white transparency, and mute light is colourless, black, grey, white, all kinds of colours of red, yellow, green, blue, and flash of light look, the electrophoretic coating of pearly-lustre look and interpolation dyestuff and pigment; Described electrophoretic coating comprises thermohardening lacquer or light sensitivity coating; Described auxiliary anode material is conductive conductor spare.
When ability cathode electrophoresis technology: steel pipe is by electrophoresis spare, connects the negative pole (-) of power supply, and positive C connects positive source (+), simultaneously, puts into an auxiliary anode (B) in steel duct.Auxiliary anode material is a metal or nonmetal through metallized conductor, can pass through electric current, and auxiliary anode and pipe fitting inner tubal wall distance can far can be near, but can not directly contact with steel pipe.Need with nonconducting nonconductor object such as plastics, rubber, wooden and other electrical insulator support intercepts auxiliary anode in other words and brushes up against contact mutually with workpiece, and this electrical insulator is again to have rule or irregular hole simultaneously, helps electrophoretic coating and enters steel duct.The connecting mode of power anode lead and auxiliary anode can single-endedly link, and also can link at two ends.
When anodic electrophoresis process: steel pipe is by electrophoresis spare, connects the positive pole (+) in electrophoresis source, and negative electrode C connects power cathode (-), simultaneously, puts into an auxiliary cathode (B) in steel duct.The auxiliary cathode material is a metal or nonmetal through metallized conductor, can pass through electric current.Auxiliary cathode and pipe fitting inner tubal wall distance can far can be near, but can not directly contact with steel pipe.Need with nonconducting nonconductor object such as plastics, rubber, wooden and other electrical insulator support intercepts auxiliary cathode in other words and brushes up against contact mutually with workpiece, and this electrical insulator is again to have rule or irregular hole simultaneously, helps electrophoretic coating and enters workpiece inside.The connecting mode of power cathode lead and auxiliary cathode can single-endedly link, and also can link at two ends.
The present invention can be combined into brand-new complete sets of equipment by existing equipment, and it is combined successively by following equipment: steel pipe feeder-defatting machine-rinsing machine-surperficial adjustment machine-phosphatization machine-rinsing machine-electrophoresis machine-spray machine-rinsing machine-baking machine-Coolers-cover molding machine-blanking machine.Individual equipment used in the present invention is prior art, and the key of invention is that the said equipment is combined into complete sets of equipment, and this complete sets of equipment can be produced single and a plurality of electrophoretic plastic-nested steel pipe.
Technological process of the present invention is as follows: steel pipe-degreasing-washing-table accent-phosphatization-washing-electrophoresis-spray-washing-baking-pressure cooling-cover is moulded-blanking-finished product packing
That the present invention has is simple in structure, the advantage of low cost of manufacture, applied range, adopts technological method of the present invention can solve the electrophoretic process problem of steel pipe inner and outer walls, thereby thoroughly solves the anticorrosion problem of the inside and outside wall of this type of workpiece.Electrophoretic plastic-nested steel pipe of the present invention can be widely used in the conveying of various complex fluids, has good corrosion prevention performance.
Description of drawings
Fig. 1 is the schematic representation of steel pipe when ability cathode electrophoresis technology
Fig. 2 is the schematic representation of steel pipe when anodic electrophoresis process
Fig. 3 is a complete sets of equipment constitutional diagram of the present invention
Fig. 4 overlaps the structural representation of plastic steel pipe for the present invention
Embodiment
Embodiment 1
As shown in Figure 4, the present invention includes steel pipe 1, at the equal electrophoresis of inner and outer wall of steel pipe 1 one deck electrophoretic coating 2 and 3, the inwall of steel pipe is lined with plastic bushing 4.
As shown in Figure 1, concrete steps of the present invention are as follows when ability cathode electrophoresis technology: steel pipe A is by electrophoresis spare, is cathod system, connects the negative pole (-) of power supply.Auxiliary anode B connects positive source (+).Positive C connects the positive pole (+) of power supply.
1, the negative pole (-) that workpiece is connected power supply.
2, auxiliary anode is put into workpiece inside.
3, the positive pole (+) that auxiliary anode is connected power supply connects the electrophoresis tank anode positive pole (+) of power supply simultaneously.
4, electrophoresis workpieces is put into electrophoretic coating solution.Electrophoretic coating can be selected polybutadiene, phenolic resin, epoxy resin, acrylic resin or polyamine fat resin for use.
5, open power supply.Several different methods is arranged: (1) can adopt zonal electrophoresis, with anode and auxiliary anode with the diverter switch control that is connected.A. first electrophoresis workpieces inside is connected to auxiliary anode with diverter switch, then electrophoresis workpieces inside.Afterwards, just power switch switches to anode, again the electrophoresis workpieces outside.B. first electrophoresis workpieces outside is connected to anode with diverter switch, then the electrophoresis workpieces outside.Afterwards, power switch is switched to auxiliary anode, again electrophoresis workpieces inside. (2) also can adopt electrophoresis simultaneously, open power supply, and electrophoresis workpieces is inside and outside simultaneously.(3) also can connect auxiliary anode and workpiece respectively with two electrophoresis powers simultaneously, another connects anode and workpiece, and two are started electrophoresis workpieces inside and outer workpiece simultaneously.
The thickness of electrodeposited paint film can be by control voltage and time and the assurance of other conditions.
As shown in Figure 3, application techniques method step of the present invention is as follows:
1, steel pipe enters feeder equipment, and the beginning material loading is loaded onto on the anchor clamps production line and produced.
2, steel pipe is introduced in the defatting machine equipment through degreasing degreasing, allows surface cleaning.
3, steel pipe enters process washing in the rinsing machine equipment, and washing can be washed liquid and impurity thing that previous process is taken out of off through one or multi-channel, makes the workpiece surface cleaning.
4, steel pipe enters table and transfers process surface adjustment in the machine equipment, helps road phosphorization filming down.
5, steel pipe enters in the phosphatization machine equipment and handles through phosphatization, makes the surface obtain different phosphorization membranes, helps the performance of electrodeposited paint film.
6, steel pipe enters process washing in the rinsing machine equipment, and washing can be through one or multi-channel.Wash liquid and impurity thing that previous process is taken out of off, make the workpiece surface cleaning.
7, steel pipe enters process electrophoretic process in the electrophoresis machine equipment, good steel pipe inwall of electrophoresis and outer wall.
8, electrophoretic steel pipe enters in the spray machine equipment and handles through spray.The spray used medium can be used ultrafiltration water or pure water.Ultrafiltration is moisture content and the solvent of separating in the electrophoresis tank, is beneficial to cleaning.Cleaning solution returns electrophoresis tank.
9, electrophoretic steel pipe enters in the rinsing machine equipment through washing.Wash liquid and impurity thing that previous process is taken out of off, make the workpiece surface cleaning.
10, electrophoretic steel pipe enters in the baking machine equipment through baking-curing.Baking machine equipment can be for heat cure roasting plant (as electric heating, fuel Heating etc.) or with temperature-sensitive curing apparatus (as ultraviolet light polymerization etc.).
11, electrophoretic steel pipe enters and forces cooling in the Air-conditioner with deep cooling function equipment, and is dry rapidly.
12, electrophoretic steel pipe is entered the cover molding machine and overlap moldedly, make electrophoretic plastic-nested steel pipe.
13, electrophoretic plastic-nested steel pipe enters blanking machine equipment through the blanking packing.
Embodiment 2
As shown in Figure 2, concrete steps of the present invention are as follows when anodic electrophoresis process: steel pipe (A) connects positive source (+) for being anode system by electrophoresis spare.Auxiliary cathode B connects power cathode (-).Negative electrode C connects power cathode (-).
1, the positive pole (+) that workpiece is connected power supply.
2, auxiliary cathode is put into workpiece inside.
3, the negative pole (-) that auxiliary cathode is connected power supply connects the electrophoresis tank negative electrode negative pole (-) of power supply simultaneously.
4, electrophoresis workpieces is put into electrophoretic coating solution.Electrophoretic coating can be selected polybutadiene, phenolic resin, epoxy resin, acrylic resin or polyamine fat resin for use.
5, open power supply.Several different methods is arranged: (1) can adopt zonal electrophoresis, negative electrode is connected with diverter switch with auxiliary cathode controls .A. elder generation electrophoresis workpieces inside, diverter switch is connected to auxiliary cathode, then electrophoresis workpieces inside.Afterwards, just power switch switches to negative electrode, again the electrophoresis workpieces outside.B. first electrophoresis workpieces outside is connected to anode with diverter switch, then the electrophoresis workpieces outside.Afterwards, power switch is switched to auxiliary anode, again electrophoresis workpieces inside.(2) also can adopt electrophoresis simultaneously, open power supply, electrophoresis workpieces is inside and outside simultaneously.(3) also can connect auxiliary cathode and workpiece respectively with two electrophoresis powers simultaneously, another connects negative electrode and workpiece, and two are started electrophoresis workpieces inside and outer workpiece simultaneously.
The thickness of electrodeposited paint film can be by control voltage and time and the assurance of other conditions.
Concrete application techniques method step is with embodiment 1.
Claims (11)
1, a kind of electrophoretic plastic-nested steel pipe, it comprises steel pipe, it is characterized in that: at the equal electrophoresis of inner and outer wall of steel pipe one deck electrophoretic coating, the inwall of steel pipe is lined with plastic bushing.
2, electrophoretic plastic-nested steel pipe according to claim 1, wherein said steel pipe are iron pipe, Coating Steel Pipe.
3, electrophoretic plastic-nested steel pipe according to claim 1 and 2, wherein said electrophoretic coating comprise thermohardening lacquer or light sensitivity coating.
4, electrophoretic plastic-nested steel pipe according to claim 3, wherein said electrophoretic coating have been added one or more in dyestuff, pigment, filler or the auxiliary agent.
5, electrophoretic plastic-nested steel pipe according to claim 4, wherein said electrophoretic coating comprises water white transparency, and mute light is colourless, black, grey, white, all kinds of colours of red, yellow, green, blue, and the electrophoretic coating of flash of light look or pearly-lustre look.
6, electrophoretic plastic-nested steel pipe according to claim 4, wherein said electrophoretic coating are one or more in polybutadiene, phenolic resin, epoxy resin, acrylic resin or the polyamine fat resin.
7, a kind of electrophoresis application technique method of electrophoretic plastic-nested steel pipe, it is when ability cathode electrophoresis technology, puts into an auxiliary anode in the deep hole inside of steel pipe, at steel pipe inner and outer walls electrophoresis one deck electrophoretic coating, then at plastic bushing of interior wall liner.
8, the electrophoresis application technique method of the described electrophoretic plastic-nested steel pipe of root a tree name claim 7, wherein said auxiliary anode material is conductive conductor spare.
9, a kind of electrophoresis application technique method of electrophoretic plastic-nested steel pipe, it is when anodic electrophoresis process, puts into an auxiliary cathode in the deep hole inside of steel pipe, at steel pipe inner and outer walls electrophoresis one deck electrophoretic coating, then at plastic bushing of interior wall liner.
10, the electrophoresis application technique method of the described electrophoretic plastic-nested steel pipe of root a tree name claim 8, wherein said auxiliary anode material is conductive conductor spare.
11, a kind of coating equipment of electrophoretic plastic-nested steel pipe, it is combined successively by following equipment: steel pipe feeder-defatting machine-rinsing machine-surperficial adjustment machine-phosphatization machine-rinsing machine-electrophoresis machine-spray machine-rinsing machine-baking machine-Coolers-cover molding machine-blanking machine.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710052275 CN101059186A (en) | 2007-05-25 | 2007-05-25 | Plastic-coated steel pipe for electrophoresis and its electrophoretic painting method and whole set apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200710052275 CN101059186A (en) | 2007-05-25 | 2007-05-25 | Plastic-coated steel pipe for electrophoresis and its electrophoretic painting method and whole set apparatus |
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| CN101059186A true CN101059186A (en) | 2007-10-24 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103436941A (en) * | 2013-08-19 | 2013-12-11 | 安徽安簧机械股份有限公司 | Electrophoresis apparatus and process suitable for automobile leaf spring |
| CN106811790A (en) * | 2015-11-30 | 2017-06-09 | 中国石油天然气集团公司 | A kind of painting method of heat exchanger tube inner anticorrosioning coating |
| CN110106543A (en) * | 2019-04-24 | 2019-08-09 | 太仓华庆汽车配件有限公司 | The electrophoresis method of irony part |
| CN113774463A (en) * | 2020-12-15 | 2021-12-10 | 邢台职业技术学院 | Steel pipe surface coating device |
| CN113881996A (en) * | 2020-12-15 | 2022-01-04 | 邢台职业技术学院 | Steel pipe surface treatment production line |
| CN114775014A (en) * | 2022-05-20 | 2022-07-22 | 杭州鼎祥新材料科技有限公司 | Electrophoresis coating equipment and process for electrophoresis plastic-sleeved steel pipe |
-
2007
- 2007-05-25 CN CN 200710052275 patent/CN101059186A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103436941A (en) * | 2013-08-19 | 2013-12-11 | 安徽安簧机械股份有限公司 | Electrophoresis apparatus and process suitable for automobile leaf spring |
| CN103436941B (en) * | 2013-08-19 | 2016-07-06 | 安徽安簧机械股份有限公司 | A kind of electrophoresis equipment suitable in automobile leaf spring and technique |
| CN106811790A (en) * | 2015-11-30 | 2017-06-09 | 中国石油天然气集团公司 | A kind of painting method of heat exchanger tube inner anticorrosioning coating |
| CN106811790B (en) * | 2015-11-30 | 2019-07-05 | 中国石油天然气集团公司 | A kind of coating method of heat exchanger tube inner anticorrosioning coating |
| CN110106543A (en) * | 2019-04-24 | 2019-08-09 | 太仓华庆汽车配件有限公司 | The electrophoresis method of irony part |
| CN113774463A (en) * | 2020-12-15 | 2021-12-10 | 邢台职业技术学院 | Steel pipe surface coating device |
| CN113881996A (en) * | 2020-12-15 | 2022-01-04 | 邢台职业技术学院 | Steel pipe surface treatment production line |
| CN114775014A (en) * | 2022-05-20 | 2022-07-22 | 杭州鼎祥新材料科技有限公司 | Electrophoresis coating equipment and process for electrophoresis plastic-sleeved steel pipe |
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