CN106811790A - A kind of painting method of heat exchanger tube inner anticorrosioning coating - Google Patents
A kind of painting method of heat exchanger tube inner anticorrosioning coating Download PDFInfo
- Publication number
- CN106811790A CN106811790A CN201510854587.7A CN201510854587A CN106811790A CN 106811790 A CN106811790 A CN 106811790A CN 201510854587 A CN201510854587 A CN 201510854587A CN 106811790 A CN106811790 A CN 106811790A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- exchanger tube
- titanium
- based nano
- heat
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/12—Electrophoretic coating characterised by the process characterised by the article coated
- C25D13/14—Tubes; Rings; Hollow bodies
Abstract
The invention discloses a kind of painting method of heat exchanger tube inner anticorrosioning coating, belong to corrosion-inhibiting coating field.The method includes：Exchange heat pipe is pre-processed, to remove the greasy dirt of heat exchange inside pipe wall and its surface.Titanium-based nano polymers anti-corrosive paint is mixed with pure water, it is configured to the aqueous solution of the titanium-based nano polymers anti-corrosive paint that pH is 6-8, it is placed in ability cathode electrophoresis groove as cathode electrodip painting tank liquor, using pretreated heat exchanger tube as negative electrode, using stainless steel plate as anode, using stainless steel bar as impressed current anode, and make impressed current anode through heat exchange tube hub, and not with heat exchange inside pipe wall contact, then electrophoresis reaction 2-4min is carried out under 80-250V DC voltages, titanium-based nano polymer corrosion-inhibiting coating is formed with heat exchange inside pipe wall.The ratio of the internal diameter of heat exchanger tube and the external diameter of impressed current anode is 5-8:1, negative electrode is 3.8-4.2 with the surface area ratio of anode:1.The coating uniform that the method is obtained, and the corrosion resistant performance of heat exchanger tube can be effectively improved.
Description
Technical field
The present invention relates to corrosion-inhibiting coating field, more particularly to a kind of painting method of heat exchanger tube inner anticorrosioning coating.
Background technology
In order to economize on resources, the factory of coastal construction is cooled down frequently with seawater heat exchanging device, but seawater has
There is very strong corrosivity, easily the heat exchanger tube in corrosion heat exchanger, makes the service life reduction of heat exchanger tube, causes money
The waste in source.In order to extend the service life of heat exchanger tube, it is necessary to coat one layer of corrosion-inhibiting coating in heat exchange inside pipe wall,
To improve the corrosion resistance of heat exchanger tube.Therefore it provides a kind of painting method of heat exchanger tube inner anticorrosioning coating is ten
Divide necessary.
Prior art, will be by titanium-based nano polymer generally using modes such as brushing, spraying, dip-coating, filling paintings
The anti-corrosion paint of preparation is exchanging heat on inside pipe wall, to improve the corrosion resistance of heat exchanger tube.
Inventor has found that prior art at least has following technical problem：
The painting method of the heat exchanger tube inner anticorrosioning coating that prior art is provided, it is difficult to be formed on heat exchange inside pipe wall
Uniform corrosion-inhibiting coating, in addition can exist coating less than position, its ability for improving heat exchanger tube corrosion resistance
It is limited.
The content of the invention
The technical problems to be solved by the invention are, there is provided one kind coating is uniform, and can effectively improve and change
Heat pipe antiseptic property, and then improve the painting method of the heat exchanger tube inner anticorrosioning coating of its service life, specific skill
Art scheme is as follows：
A kind of painting method of heat exchanger tube inner anticorrosioning coating is the embodiment of the invention provides, including：Exchange heat pipe
Pre-processed, to remove the greasy dirt of the heat exchange inside pipe wall and its surface.By titanium-based nano polymer anti-corrosion
Coating mixes with pure water, is configured to the aqueous solution of the titanium-based nano polymers anti-corrosive paint that pH is 6-8, juxtaposition
As cathode electrodip painting tank liquor in ability cathode electrophoresis groove, using the pretreated heat exchanger tube as negative electrode, with
Stainless steel plate using stainless steel bar as impressed current anode, and makes the impressed current anode be changed through described as anode
Heat pipe center, and not with it is described heat exchange inside pipe wall contact, electricity is then carried out under the DC voltage of 80-250V
Swimming reaction 2-4min, titanium-based nano polymer corrosion-inhibiting coating is formed with the heat exchange inside pipe wall.It is described to change
The ratio of the external diameter of the internal diameter of heat pipe and the impressed current anode is 5-8:1；The surface of the negative electrode and the anode
Product is than being 3.8-4.2:1.
Specifically, preferably, the painting method also includes：Titanium-based is formed on the heat exchange inside pipe wall
After nanometer polymer corrosion-inhibiting coating, the heat exchanger tube is cleaned with ultrafiltrate and pure water successively, Ran Hou
Dry and cool down at 150-200 DEG C, followed by the ultrafiltration system of the ability cathode electrophoresis groove to the solution after cleaning
Reclaimed, obtained unemployed titanium-based nano polymers anti-corrosive paint.
Specifically, preferably, the exchange heat pipe carries out pretreatment and includes：To it is described heat exchange inside pipe wall according to
Secondary to carry out the treatment of mechanical grinding burr, vapour degreasing treatment and cleaning treatment, the mouth of pipe to the heat exchanger tube enters
Row chamfered.
Specifically, preferably, vapour degreasing treatment includes：100-110 DEG C is passed through from described heat exchanger tube one end
Water vapour, and the water vapour is flowed out from the heat exchanger tube other end, be passed through the time of the water vapour
It is 1-2 hours.
Specifically, preferably, the cleaning treatment includes：The heat exchanger tube, leaching are soaked with alkaline solution
The bubble time is 1-2 hours, then the heat exchanger tube is rinsed with water, until rinsing the pH of the water of the heat exchanger tube
Value is in the range of 7-8, then the heat exchanger tube is rinsed with pure water, removes the greasy dirt of the heat exchange inside pipe wall.
Specifically, preferably, the aqueous solution of the titanium-based nano polymers anti-corrosive paint is by following process
Prepare：Pure water by titanium-based nano polymers anti-corrosive paint and electrical conductivity less than 15 μ S/cm is by weight
0.8-1.2:1 mixing, stirs and adjusts pH value for 6-8, obtains the titanium-based nano polymer anti-corrosion and applies
The aqueous solution of material.
Specifically, preferably, the impressed current anode be 316L stainless steel bars, the anode be 316L not
Rust steel plate.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
The painting method of heat exchanger tube inner anticorrosioning coating provided in an embodiment of the present invention, changes by by pretreated
Heat pipe is placed in ability cathode electrophoresis groove as negative electrode, using stainless steel plate as anode, using stainless steel bar as auxiliary
Anode, and make the impressed current anode through heat exchange tube hub, and not with heat exchange inside pipe wall contact, using electrophoresis
Realize heat exchange inside pipe wall on coat corrosion-inhibiting coating, with traditional brushing, spraying, dip-coating, fill apply etc. coat
Mode is compared, and method provided in an embodiment of the present invention makes anticorrosive paint more uniform in the coating of heat exchange inside pipe wall,
So as to improve the corrosion resistance of heat exchanger tube.Additionally, by using pure water and titanium-based nano polymer formulation electrophoresis
Paint bath liquid, it is to avoid the discharge of volatile organic matter when preparing anticorrosive paint using organic solvent, applies anti-corrosion
The coating procedure more safety and environmental protection of layer.It can be seen that, heat exchanger tube inner anticorrosioning coating provided in an embodiment of the present invention
Painting method, coating is uniform, and can effectively improve the corrosion resistant performance of heat exchanger tube, and safety and environmental protection is easy to operate,
It is easy to large-scale promotion application.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below will be to embodiment of the present invention
It is described in further detail.
A kind of painting method of heat exchanger tube inner anticorrosioning coating is the embodiment of the invention provides, including：Exchange heat pipe
Pre-processed, to remove the greasy dirt of heat exchange inside pipe wall and surface.By titanium-based nano polymers anti-corrosive paint with
Pure water mixes, and is configured to the aqueous solution of the titanium-based nano polymers anti-corrosive paint that pH is 6-8, is placed in negative electrode
As cathode electrodip painting tank liquor in electrophoresis tank, using pretreated heat exchanger tube as negative electrode, made with stainless steel plate
Be anode, using stainless steel bar as impressed current anode, and make impressed current anode through heat exchange tube hub, and not with change
Heat pipe inner wall is contacted, and electrophoresis reaction 2-4min is then carried out under the DC voltage of 80-250V, with heat exchange
Titanium-based nano polymer corrosion-inhibiting coating is formed on inside pipe wall.The ratio of the internal diameter of heat exchanger tube and the external diameter of impressed current anode
Example is 5-8:1；Negative electrode is 3.8-4.2 with the surface area ratio of anode:1.
The painting method of heat exchanger tube inner anticorrosioning coating provided in an embodiment of the present invention, changes by by pretreated
Heat pipe is placed in ability cathode electrophoresis groove as negative electrode, using stainless steel plate as anode, using stainless steel bar as auxiliary
Anode, and make the impressed current anode through heat exchange tube hub, and not with heat exchange inside pipe wall contact, using electrophoresis
Realize heat exchange inside pipe wall on coat corrosion-inhibiting coating, with traditional brushing, spraying, dip-coating, fill apply etc. coat
Mode is compared, and method provided in an embodiment of the present invention makes anticorrosive paint more uniform in the coating of heat exchange inside pipe wall,
So as to improve the corrosion resistance of heat exchanger tube.Additionally, by using pure water and titanium-based nano polymer formulation electrophoresis
Paint bath liquid, it is to avoid the discharge of volatile organic matter when preparing anticorrosive paint using organic solvent, applies anti-corrosion
The coating procedure more safety and environmental protection of layer.It can be seen that, heat exchanger tube inner anticorrosioning coating provided in an embodiment of the present invention
Painting method, coating is uniform, and can effectively improve the corrosion resistant performance of heat exchanger tube, and safety and environmental protection is easy to operate,
It is easy to large-scale promotion application.
Specifically, impressed current anode makes each region of heat exchange inside pipe wall to be coated with titanium-based and receives through heat exchanger tube
Rice polymer corrosion-inhibiting coating, without being influenceed by heat exchanger tube length.And, coating provided in an embodiment of the present invention
Method, film forming is uniform under electric field action, more suitable for complex-shaped, have edge corner angle, tack weld,
The heat exchanger (heat exchanger tube) in hole etc., and can to a certain extent be controlled by adjusting the turn on angle of electrophoresis tank
The thickness of corrosion-inhibiting coating, obtains uniform, preferable corrosion-inhibiting coating, improves the corrosion resistance of heat exchanger tube.Meanwhile,
The painting method process is simple, easily realizes mechanization and automation, not only alleviates labour intensity, and
Labor productivity is significantly increased, practicality is very strong.
Specifically, the frid of electrophoresis tank has carried out insulation processing with fiberglass or PVC plastic, and anode is positioned on
The both sides of electrophoresis tank, the material of anode is 316L stainless steels, and the material of impressed current anode is also 316L stainless steels.
Negative electrode in electrophoresis tank is pretreated heat exchanger tube, and the inner surface of heat exchanger tube and the area sum of outer surface are
Cathodic surface area, negative electrode is 3.8-4.2 with the surface area ratio of anode:1 (such as 3.8:1、4:1、4.2:1 etc.),
The ratio of the internal diameter of heat exchanger tube and the external diameter of impressed current anode is 5-8:1 (such as 5:1、6:1、7:1、8:1 etc.).
Specifically, the painting method of heat exchanger tube inner anticorrosioning coating provided in an embodiment of the present invention also includes：Changing
After forming titanium-based nano polymer corrosion-inhibiting coating on heat pipe inner wall, exchange heat pipe with ultrafiltrate and pure water successively and enter
Row cleaning, in order to reduce discharging of waste liquid, economizes on resources, and can exchange heat pipe carries out a ultrafiltrate flushing and one
Secondary pure water cleaning.Then, by the heat exchanger tube after cleaning at 150-200 DEG C (such as 150,170,180,200 DEG C)
Lower drying 15-25min (such as 15,18,20,22,25min) and cool down.Followed by ability cathode electrophoresis groove
Ultrafiltration system the solution after cleaning is reclaimed, obtain unemployed titanium-based nano polymer anti-corrosion and apply
Material, to save anticorrosive paint.Titanium-based nano polymer electrophoretic paint concentration used in the embodiment of the present invention is relatively low,
Viscosity is small, and because maceration is adhered to by painting workpiece, the loss of electrophoretic paint is less, and electrophoretic paint is obtained fully
Utilize, after being reclaimed to electrophoretic paint in particular by ultrafiltration system, the profit of titanium-based nano polymer electrophoretic paint
With rate more than 95%, and the utilization rate of oiliness spray painting only has 40~60%, the profit of special-shaped or miniature workpiece paint
There was only 20~40% with rate, it is seen then that ultrafiltration system can effectively improve the utilization rate of electrophoretic paint.
Specifically, exchange heat pipe carries out preprocessing process includes：Exchange heat pipe inner wall carries out mechanical grinding successively
Burr treatment, vapour degreasing treatment and cleaning treatment, the mouth of pipe for exchanging heat pipe carry out chamfered.By machine
The burr of tool polishing burr treatment and chamfered, removal heat exchange inside pipe wall and the mouth of pipe, so that electrophoretic paint is being changed
The coating of heat pipe inner wall is more uniform.Processed by vapour degreasing and cleaning treatment, removal heat exchange inside pipe wall
Greasy dirt, so that electrophoretic paint is more stably adhered to the inside pipe wall that exchanges heat, makes the corrosion resistance of heat exchanger tube more longlasting.
Wherein, vapour degreasing treatment includes：100-110 DEG C of water vapour is passed through from heat exchanger tube one end, and makes water
Steam flows out from the heat exchanger tube other end, and the time for being passed through water vapour is 1-2 hours (such as 1,1.5,2 hours).
And cleaning treatment includes：Heat exchanger tube is soaked with alkaline solution (such as NaOH, potassium hydroxide solution),
Soak time is 1-2 hours (such as 1,1.5,2 hours), then with water flushing heat exchanging pipe, is rinsed 3-4 times,
In order to save clear water, it is also possible to exchange heat pipe with the acetum that mass concentration is 5% and be rinsed, rinse 1-2
It is secondary, pH is determined, until the pH value of flushing heat exchanging pipe solution is in the range of 7-8, then heat pipe is exchanged with pure water
Carry out once flushing, the greasy dirt of removal heat exchange inside pipe wall.
Specifically, the aqueous solution of titanium-based nano polymers anti-corrosive paint is prepared by following process：By titanium
Pure water of the base nanometer polymer anticorrosive paint with electrical conductivity less than 15 μ S/cm is by weight 0.8-1.2:1 mixing,
PH value is stirred and adjusted for 6-8, available quality concentration be 5% acetum it is adjusted, obtain
To the aqueous solution of titanium-based nano polymers anti-corrosive paint.Using pure water as solvent, save substantial amounts of organic
Solvent, both reduces cost, turn avoid organic solvent and poisoning and inflammable grade danger easily occur, and improves labor
Dynamic condition, it is to avoid environmental pollution, makes whole coating procedure more safety and environmental protection.
To be below described in detail by specific embodiment：
Embodiment 1
A kind of painting method of heat exchanger tube inner anticorrosioning coating is present embodiments provided, is comprised the following steps that：
Step 1：First, exchange heat pipe inner wall carries out mechanical grinding burr treatment, and the mouth of pipe for exchanging heat pipe is carried out
Chamfered, except deburring.Then, exchanging heat pipe with 100 DEG C of water vapour carries out vapour degreasing treatment, will
Water vapour is passed through from heat exchanger tube one end, and from the other end outflow of heat exchanger tube tube bank, the time for being passed through water vapour is
1.5 hours.Heat exchanger tube is soaked with 10% NaOH solution again, soak time is 1.5 hours, then with clear
Water flushing heat exchanging pipe, rinses 3 times, pH value is determined, until the pH value of the solution of flushing heat exchanging pipe is in 7-8
In the range of, then once flushing, the greasy dirt of removal heat exchange inside pipe wall are carried out with pure water exchange heat pipe.
Step 2：By 1:1 ratio mixes titanium-based nano polymers anti-corrosive paint with pure water, dense by quality
The acetum spent for 5% adjusts the pH of mixture in the range of 6~8, obtains titanium-based nano polymer anti-corrosion
The aqueous solution of coating.
Step 3：The aqueous solution of titanium-based nano polymers anti-corrosive paint is placed in ability cathode electrophoresis groove as negative electrode electricity
Swimming paint bath liquid, using pretreated heat exchanger tube as negative electrode, using 316L stainless steel plates as anode, with 316L
Stainless steel bar as impressed current anode, and make impressed current anode through heat exchange tube hub, and not with heat exchange inside pipe wall connect
Touch, the ratio of the internal diameter of heat exchanger tube and the external diameter of impressed current anode is 6:1；Negative electrode is 4 with the surface area ratio of anode:1.
Electrophoresis reaction 3min is carried out under 220V DC voltages, makes to form titanium-based nano polymer on heat exchange inside pipe wall
Corrosion-inhibiting coating.
Step 4：After electrophoresis terminates, heat exchanger tube is taken out, exchanges heat pipe with ultrafiltrate and pure water successively and cleaned,
Dried at 180 DEG C and 20min and cooled down, and ultrafiltration system using ability cathode electrophoresis groove enters to the solution after cleaning
Row is reclaimed, the titanium-based nano polymers anti-corrosive paint not utilized.The following is anti-to what is obtained in step 4
The performance of rotten coating is tested, and the method and result of test are as shown in table 1.
The heat exchange inside pipe wall titanium-based nano polymer corrosion-inhibiting coating performance of table 1
| Detection project | Performance requirement | Test result | Detection method |
| Inner tube coating (upper, middle and lower) | Uniformly | Upper 45,44 in, lower 45 μm | Calibrator |
| Adhesive force (cross-hatching) | ≤ 1 grade | 0 grade | GB/T9286 |
| Pliability | ≤2mm | 1mm | GB/T1732 |
| Hardness | ≥2H | 3H | GB/T6739 |
| Resistance to artificial seawater | >=365 days | 720 days | GB/T9274 |
| Resistance to 10%HCL | >=90 days | 160 days | GB/T9274 |
| >=90 days | 160 days | GB/T9274 | |
| Resistance to 10%NaOH | >=90 days | 160 days | GB/T9274 |
| Resistance to neutral salt spray | ≥2000h | 3000h | GB/T1771 |
As can be seen from Table 1, the titanium-based of the heat exchange inside pipe wall for being obtained by the painting method in embodiment 1 is received
Rice polymer corrosion-inhibiting coating, in thickness evenness, adhesive force, pliability, hardness, resistance to artificial seawater, resistance to
10%HCL, resistance to 10%H2SO4, the performance in terms of resistance to 10%NaOH and resistance to neutral salt spray can meet
Related request, and excellent performance.
Presently preferred embodiments of the present invention is the foregoing is only, the protection domain being not intended to limit the invention is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc., all should include
Within protection scope of the present invention.
Claims (7)
1. a kind of painting method of heat exchanger tube inner anticorrosioning coating, including：Exchange heat pipe is pre-processed, with clear
Except the heat exchange inside pipe wall and its greasy dirt on surface；
Titanium-based nano polymers anti-corrosive paint is mixed with pure water, the titanium-based nano that pH is 6-8 is configured to and is polymerized
The aqueous solution of thing anticorrosive paint, is placed in ability cathode electrophoresis groove as cathode electrodip painting tank liquor, with pretreated
Heat exchanger tube as negative electrode, using stainless steel plate as anode, using stainless steel bar as impressed current anode, and make institute
Impressed current anode is stated through the heat exchange tube hub, and is not contacted with the heat exchange inside pipe wall, then in 80-250V
DC voltage under carry out electrophoresis reaction 2-4min, with it is described heat exchange inside pipe wall on formed titanium-based nano be polymerized
Thing corrosion-inhibiting coating；
The internal diameter of the heat exchanger tube is 5-8 with the ratio of the external diameter of the impressed current anode:1；
The negative electrode is 3.8-4.2 with the surface area ratio of the anode:1.
2. the painting method of heat exchanger tube inner anticorrosioning coating according to claim 1, it is characterised in that institute
Stating painting method also includes：After titanium-based nano polymer corrosion-inhibiting coating being formed on the heat exchange inside pipe wall, according to
It is secondary the heat exchanger tube is cleaned with ultrafiltrate and pure water, then dry and cool down at 150-200 DEG C, with
The solution after cleaning is reclaimed using the ultrafiltration system of the ability cathode electrophoresis groove afterwards, is obtained unemployed
Titanium-based nano polymers anti-corrosive paint.
3. the painting method of heat exchanger tube inner anticorrosioning coating according to claim 1, it is characterised in that institute
Stating exchange heat pipe carries out pretreatment and includes：To it is described heat exchange inside pipe wall carry out successively the treatment of mechanical grinding burr,
Vapour degreasing treatment and cleaning treatment, the mouth of pipe to the heat exchanger tube carry out chamfered.
4. the painting method of heat exchanger tube inner anticorrosioning coating according to claim 3, it is characterised in that institute
Stating vapour degreasing treatment includes：100-110 DEG C of water vapour is passed through from described heat exchanger tube one end, and makes the water
Steam flows out from the heat exchanger tube other end, and the time for being passed through the water vapour is 1-2 hours.
5. the painting method of heat exchanger tube inner anticorrosioning coating according to claim 3, it is characterised in that institute
Stating cleaning treatment includes：The heat exchanger tube is soaked with alkaline solution, soak time is 1-2 hours, then uses water
The heat exchanger tube is rinsed, until rinse the pH value of the water of the heat exchanger tube in the range of 7-8, then with pure water pair
The heat exchanger tube is rinsed, and removes the greasy dirt of the heat exchange inside pipe wall.
6. the painting method of heat exchanger tube inner anticorrosioning coating according to claim 1, it is characterised in that institute
The aqueous solution for stating titanium-based nano polymers anti-corrosive paint is prepared by following process：Titanium-based nano is polymerized
Pure water of the thing anticorrosive paint with electrical conductivity less than 15 μ S/cm is by weight 0.8-1.2:1 mixing, stirs simultaneously
Regulation pH value is 6-8, obtains the aqueous solution of the titanium-based nano polymers anti-corrosive paint.
7. the painting method of heat exchanger tube inner anticorrosioning coating according to claim 1, it is characterised in that institute
Impressed current anode is stated for 316L stainless steel bars, the anode is 316L stainless steel plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510854587.7A CN106811790B (en) | 2015-11-30 | 2015-11-30 | A kind of coating method of heat exchanger tube inner anticorrosioning coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510854587.7A CN106811790B (en) | 2015-11-30 | 2015-11-30 | A kind of coating method of heat exchanger tube inner anticorrosioning coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106811790A true CN106811790A (en) | 2017-06-09 |
| CN106811790B CN106811790B (en) | 2019-07-05 |
Family
ID=59157020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510854587.7A Active CN106811790B (en) | 2015-11-30 | 2015-11-30 | A kind of coating method of heat exchanger tube inner anticorrosioning coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106811790B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3418233A (en) * | 1963-07-01 | 1968-12-24 | Ford Motor Co | Apparatus for electrocoating using an auxiliary electrode |
| CN1789360A (en) * | 2005-12-22 | 2006-06-21 | 刘赞成 | Metal corrosion resistant coating and its manufacturing process |
| CN101003908A (en) * | 2006-12-15 | 2007-07-25 | 李再亮 | Electrophoresis painting dressing technical method for pipe fitting type metal, and metal piece with deep hole, and deep concave |
| CN101059186A (en) * | 2007-05-25 | 2007-10-24 | 武汉立胜超滤科技发展有限公司 | Plastic-coated steel pipe for electrophoresis and its electrophoretic painting method and whole set apparatus |
| JP2013159832A (en) * | 2012-02-06 | 2013-08-19 | Honda Motor Co Ltd | Electroplating apparatus for blind hole |
| CN103275601A (en) * | 2013-05-28 | 2013-09-04 | 胜利油田金岛实业有限责任公司 | Nano titanium polymer inner wall anticorrosion oil pipe |
| CN103865360A (en) * | 2014-03-28 | 2014-06-18 | 湖南伟邦汽车涂料有限公司 | Acid-proof cathode electrophoretic paint as well as preparation method and application method |
-
2015
- 2015-11-30 CN CN201510854587.7A patent/CN106811790B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3418233A (en) * | 1963-07-01 | 1968-12-24 | Ford Motor Co | Apparatus for electrocoating using an auxiliary electrode |
| CN1789360A (en) * | 2005-12-22 | 2006-06-21 | 刘赞成 | Metal corrosion resistant coating and its manufacturing process |
| CN101003908A (en) * | 2006-12-15 | 2007-07-25 | 李再亮 | Electrophoresis painting dressing technical method for pipe fitting type metal, and metal piece with deep hole, and deep concave |
| CN101059186A (en) * | 2007-05-25 | 2007-10-24 | 武汉立胜超滤科技发展有限公司 | Plastic-coated steel pipe for electrophoresis and its electrophoretic painting method and whole set apparatus |
| JP2013159832A (en) * | 2012-02-06 | 2013-08-19 | Honda Motor Co Ltd | Electroplating apparatus for blind hole |
| CN103275601A (en) * | 2013-05-28 | 2013-09-04 | 胜利油田金岛实业有限责任公司 | Nano titanium polymer inner wall anticorrosion oil pipe |
| CN103865360A (en) * | 2014-03-28 | 2014-06-18 | 湖南伟邦汽车涂料有限公司 | Acid-proof cathode electrophoretic paint as well as preparation method and application method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106811790B (en) | 2019-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104975280A (en) | Cold-rolled steel sheet passivating treatment method | |
| CN109183126A (en) | A kind of preparation method of Mg alloy surface hydrophobic film layer | |
| CN107858744A (en) | A kind of stainless steel pipes electrolytic polishing liquid and its stainless steel pipes glossing | |
| CN103451688A (en) | Method for preparing super-hydrophobic biomimetic surface on copper substrate | |
| CN104264196A (en) | Method for preparing super-hydrophobic membrane layer on surface of magnesium alloy through one-step method as well as alloy and application of uper-hydrophobic membrane layer | |
| CN105177545A (en) | Cold-rolled steel sheet surface treatment technique | |
| CN107740168A (en) | A kind of efficient corrosion resisting Zinc phosphating solution and preparation method thereof | |
| CN110424029A (en) | A kind of anti-corrosion self-cleaning super-hydrophobic coating in metal surface and its preparation method and application | |
| CN102691089B (en) | Electrochemical method for preparing superhydrophobic surface on copper substrates by using aqueous electrolyte | |
| CN104004448A (en) | Single-component cathodic electrophoretic coating for automotive primer | |
| CN104313562B (en) | A kind of normal-temperature phosphorizing liquid and preparation method thereof | |
| CN105332044A (en) | Novel chromic anhydride-free stainless steel electrolytic polishing solution and polishing process thereof | |
| CN103966645B (en) | A kind of step-by-step movement electrophoresis line production technology | |
| CN106958024B (en) | A kind of environment-friendly type derusting phosphating agent and its preparation and application | |
| CN104962976A (en) | Automobile part cathode electrophoresis paint surface quality processing technique | |
| CN102787346B (en) | Plasma cleaning process before clean and environment-friendly plated film | |
| CN106811790A (en) | A kind of painting method of heat exchanger tube inner anticorrosioning coating | |
| CN105063738B (en) | Preparation method of durable underwater ultra oleophobic surface of titanium alloy matrix | |
| CN108048829B (en) | A kind of electrophoresis method of neodymium iron boron magnetic body | |
| CN107779932B (en) | A kind of automobile processing mold electrophoresis process for protecting | |
| CN105926027A (en) | Corrosion resistance stainless steel electrolytic polishing technology | |
| CN108048825A (en) | A kind of method of steel and iron parts surface mechanical zinc-plating | |
| CN102041535A (en) | Method for preparing two types of super-hydrophobic membranes simultaneously by utilizing ferric chloride | |
| CN102534719B (en) | Electrochemical method for preparing super-hydrophobic surface on copper substrate | |
| CN108796583A (en) | A kind of preparation method of the super-hydrophobic passivating film of Pure Iron Surface corrosion resistance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |