CN107937951A - A kind of coloring coating method of surface of stainless steel product - Google Patents
A kind of coloring coating method of surface of stainless steel product Download PDFInfo
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- CN107937951A CN107937951A CN201711149294.4A CN201711149294A CN107937951A CN 107937951 A CN107937951 A CN 107937951A CN 201711149294 A CN201711149294 A CN 201711149294A CN 107937951 A CN107937951 A CN 107937951A
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- stainless steel
- coloring
- polishing
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D9/00—Electrolytic coating other than with metals
- C25D9/04—Electrolytic coating other than with metals with inorganic materials
- C25D9/08—Electrolytic coating other than with metals with inorganic materials by cathodic processes
- C25D9/10—Electrolytic coating other than with metals with inorganic materials by cathodic processes on iron or steel
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
- C25D5/36—Pretreatment of metallic surfaces to be electroplated of iron or steel
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The present invention relates to stainless steel products processing and fabricating technical field, disclose a kind of coloring coating method of surface of stainless steel product, pass through electrochemical polishing treatment before coloring, the surface of a uniform ground is formd after electrobrightening, the activation point of coloring can be improved, improve colouring speeds, adding additive and catalyst in coloring liquid in coloring can accelerate stainless steel coloring speed, coloring is more uniform, color and luster is more gorgeous, solve the problems, such as that coloring is tested intolerant to temperature and environmental change by surface coating graphene oxide, and improve the wearability and resistance to soiling of colored stainless steel, the service life of the coloured surface generated is almost grown as the matrix stainless steel service life, the advantage of stainless steel is given full play to.
Description
Technical field
The invention belongs to the processing and fabricating technical field of stainless steel products, and in particular to a kind of surface of stainless steel product
Color coating method.
Background technology
Stainless steel is the weak corrosive medium such as the abbreviation of stainless acid resistant steel, resistance to air, steam, water or the steel grade with rustless property
Referred to as stainless steel, and the steel grade that medium resistant to chemical etching (chemical etching such as acid, alkali, salt) corrodes is known as acid resisting steel.Due to two
Difference of the person in chemical composition and make their corrosion resistance different, generally resistant to chemical media corrodes common stainless steel, and resistance to
Sour steel then generally has rustless property." stainless steel " word not exclusively refers to merely a kind of stainless steel, but represents kind more than 100
Industrial stainless steel, the every kind of stainless steel capital developed have good performance in its specific application field.It is successfully crucial first
Purposes is understood fully before this, then determine correct steel grade again.Usually only six kinds of the steel grade related with architectural construction application field.
They all contain 17 ~ 22% chromium, and preferable steel grade also contains nickel.Addition molybdenum can further improve atmospheric corrosiveness, particularly resistance to
The corrosion of chloride air.
Continuous with its demand field expands, and colored stainless steel quietly comes out.Into 21st century, stainless steel coloring
Technology is more widely used.Multicoloured color not only increases the decorative and artistry of stainless steel and improves
The corrosion resistance and wearability of stainless steel, the application field of colored stainless steel expand day by day, but when temperature is more than 200 DEG C, it is colored
Film may be aoxidized or is dehydrated, and become easily to come off, and corrosion resistance substantially reduces, and can bring a series of problems.
The content of the invention
The purpose of the present invention is for it is existing the problem of, there is provided a kind of coloring coating method of surface of stainless steel product,
Stainless steel coloring speed is fast, and uniform coloring is beautiful in colour, by surface coating graphene oxide come solve coloring intolerant to temperature and
The problem of environmental change tests.
The present invention is achieved by the following technical solutions：
A kind of coloring coating method of surface of stainless steel product, comprises the following steps：
（1）Surface of stainless steel product is polishing to the lye wiping that surface is smooth, and concentration is 15-18% by 800 mesh sand paper
Wash, then wash with water 2-3 times, then carry out electrobrightening processing, polishing treatment condition is：Polishing fluid is heated to before polishing
50-60 DEG C, polish temperature is 70-80 DEG C, and polishing time is 8-12 minutes, current density 10-12A/dm2, carried out after polishing
Washing；
（2）Mass fraction is added into coloring liquid as the additive of 0.5-0.6% and the catalyst of 0.1-0.2%, after polishing
Stainless steel products is immersed in coloring liquid, electrochemical coloring is carried out at 35-40 DEG C, stainless steel reaches predetermined coloring potential difference
When, it is stopped, stainless steel is taken out and is washed, cure process, cure process are carried out after surface coloring liquid is rinsed well
Mass concentration is placed into after 5-8 minutes as Seal treatment in 1.5-2.0% sodium silicate solutions, heating is rinsed after boiling 3-5 minutes
Drying；
（3）Establish using the stainless steel products after colouring as working electrode, platinum electrode as counterelectrode, calomel electrode be reference electrode
Three-electrode system, using graphene oxide solution as electrolyte solution, deposition film forming is carried out under 4-6V voltages, when film layer is thick
Degree can be stopped after reaching 20-40 nanometer ranges, take out stainless steel, quickly dried up with nitrogen, be done in vacuum drying chamber
When bath curing 2-3 is small, drying temperature is 60-65 DEG C, that is, obtains uniform coating.
Further described as to such scheme, every 1000 grams of compositions are in the polishing fluid：Mass concentration is 70-
80% phosphoric acid solution 6OO-700g, mass concentration are the sulfuric acid solution 100-120g of 90-95%, and mass concentration is the poly- of 15-20%
100-110 grams of ethylene glycol, remaining as glycerine.
Further described as to such scheme, the graphene oxide solution preparation method is：Weigh 100-120 grams
Graphene oxide, add the deionized water of 8-10 times of volume, carry out ultrasonic disperse 30-40 minutes to obtain the final product.
Further described as to such scheme, the additive contains according to mass percent meter：Sodium sulfite accounts for
20-30%, manganese sulfate account for 20-25%, zinc sulfate accounts for 15-20%, remaining as ammonium molybdate.
Further described as to such scheme, the catalyst is the dilute sulfuric acid that mass concentration is 8-10%.
The present invention has the following advantages compared with prior art：In order to solve the coloring that existing stainless steel occurs in coloring
The problem of layer is intolerant to temperature and environmental change, the present invention provides a kind of coloring coating method of surface of stainless steel product,
Pass through electrochemical polishing treatment before coloring, the surface that electrobrightening forms a uniform ground can improve the activation of coloring
Point, improves colouring speeds, and adding additive and catalyst in coloring liquid in coloring can accelerate stainless steel coloring speed,
Color is more uniform, and color and luster is more gorgeous, is examined by surface coating graphene oxide to solve coloring intolerant to temperature and environmental change
The problem of testing, and improve the wearability and resistance to soiling of colored stainless steel, service life of the coloured surface generated almost with base
The body stainless steel service life is equally long, has given full play to the advantage of stainless steel.
Embodiment
With reference to specific embodiment, the invention will be further described.
Embodiment 1
A kind of coloring coating method of surface of stainless steel product, comprises the following steps：
（1）Surface of stainless steel product is polishing to the lye scouring that surface is smooth, and concentration is 15% by 800 mesh sand paper, then
Wash with water 2 times, then carry out electrobrightening processing, polishing treatment condition is：Polishing fluid is heated to 50 DEG C before polishing, polishing
Temperature is 70 DEG C, and polishing time is 8 minutes, current density 10A/dm2, washed after polishing；
（2）The additive and 0.1% catalyst that mass fraction is 0.5% are added into coloring liquid, by the stainless steel after polishing
Product are immersed in coloring liquid, and electrochemical coloring is carried out at 35 DEG C, when stainless steel reaches predetermined coloring potential difference, is stopped,
Stainless steel is taken out and is washed, carries out cure process after surface coloring liquid is rinsed well, cure process places into after five minutes
Mass concentration is Seal treatment in 1.5% sodium silicate solution, and heating rinses drying after boiling 3 minutes；
（3）Establish using the stainless steel products after colouring as working electrode, platinum electrode as counterelectrode, calomel electrode be reference electrode
Three-electrode system, using graphene oxide solution as electrolyte solution, deposition film forming is carried out under 4V voltages, works as thicknesses of layers
It can be stopped after reaching 20-40 nanometer ranges, take out stainless steel, quickly dried up with nitrogen, bath is done in vacuum drying chamber
Cure 2 it is small when, drying temperature be 60 DEG C, that is, obtain uniform coating.
Further described as to such scheme, every 1000 grams of compositions are in the polishing fluid：Mass concentration is 70%
Phosphoric acid solution 6OOg, mass concentration are 90% sulfuric acid solution 100g, and mass concentration is 15% 100 grams of polyethylene glycol, remaining as
Glycerine.
Further described as to such scheme, the graphene oxide solution preparation method is：Weigh 100 grams of oxygen
Graphite alkene, adds the deionized water of 8 times of volumes, carries out ultrasonic disperse 30 minutes to obtain the final product.
Further described as to such scheme, the additive contains according to mass percent meter：Sodium sulfite accounts for
20%th, manganese sulfate accounts for 20%, zinc sulfate and accounts for 15%, remaining as ammonium molybdate.
Further described as to such scheme, the catalyst is the dilute sulfuric acid that mass concentration is 8%.
Embodiment 2
A kind of coloring coating method of surface of stainless steel product, comprises the following steps：
（1）Surface of stainless steel product is polishing to the lye scouring that surface is smooth, and concentration is 16% by 800 mesh sand paper, then
Wash with water 2 times, then carry out electrobrightening processing, polishing treatment condition is：Polishing fluid is heated to 55 DEG C before polishing, polishing
Temperature is 75 DEG C, and polishing time is 10 minutes, current density 11A/dm2, washed after polishing；
（2）The additive and 0.15% catalyst that mass fraction is 0.55% are added into coloring liquid, by the stainless steel after polishing
Product is immersed in coloring liquid, and electrochemical coloring is carried out at 38 DEG C, when stainless steel reaches predetermined coloring potential difference, stops work
Make, stainless steel taken out and is washed, carries out cure process after surface coloring liquid is rinsed well, cure process after 6 minutes again
Mass concentration is put into as Seal treatment in 1.8% sodium silicate solution, heating rinses drying after boiling 4 minutes；
（3）Establish using the stainless steel products after colouring as working electrode, platinum electrode as counterelectrode, calomel electrode be reference electrode
Three-electrode system, using graphene oxide solution as electrolyte solution, deposition film forming is carried out under 5V voltages, works as thicknesses of layers
It can be stopped after reaching 20-40 nanometer ranges, take out stainless steel, quickly dried up with nitrogen, bath is done in vacuum drying chamber
Cure 2.5 it is small when, drying temperature be 62 DEG C, that is, obtain uniform coating.
Further described as to such scheme, every 1000 grams of compositions are in the polishing fluid：Mass concentration is 75%
Phosphoric acid solution 650g, mass concentration are 92% sulfuric acid solution 110g, and mass concentration is 18% 105 grams of polyethylene glycol, remaining as
Glycerine.
Further described as to such scheme, the graphene oxide solution preparation method is：Weigh 110 grams of oxygen
Graphite alkene, adds the deionized water of 9 times of volumes, carries out ultrasonic disperse 35 minutes to obtain the final product.
Further described as to such scheme, the additive contains according to mass percent meter：Sodium sulfite accounts for
25%th, manganese sulfate accounts for 22%, zinc sulfate and accounts for 18%, remaining as ammonium molybdate.
Further described as to such scheme, the catalyst is the dilute sulfuric acid that mass concentration is 9%.
Embodiment 3
A kind of coloring coating method of surface of stainless steel product, comprises the following steps：
（1）Surface of stainless steel product is polishing to the lye scouring that surface is smooth, and concentration is 18% by 800 mesh sand paper, then
Wash with water 3 times, then carry out electrobrightening processing, polishing treatment condition is：Polishing fluid is heated to 60 DEG C before polishing, polishing
Temperature is 80 DEG C, and polishing time is 12 minutes, current density 12A/dm2, washed after polishing；
（2）The additive and 0.2% catalyst that mass fraction is 0.6% are added into coloring liquid, by the stainless steel after polishing
Product are immersed in coloring liquid, and electrochemical coloring is carried out at 40 DEG C, when stainless steel reaches predetermined coloring potential difference, is stopped,
Stainless steel is taken out and is washed, cure process is carried out after surface coloring liquid is rinsed well, cure process places into after 8 minutes
Mass concentration is Seal treatment in 2.0% sodium silicate solution, and heating is boiled rinses drying after five minutes；
（3）Establish using the stainless steel products after colouring as working electrode, platinum electrode as counterelectrode, calomel electrode be reference electrode
Three-electrode system, using graphene oxide solution as electrolyte solution, deposition film forming is carried out under 6V voltages, works as thicknesses of layers
It can be stopped after reaching 20-40 nanometer ranges, take out stainless steel, quickly dried up with nitrogen, bath is done in vacuum drying chamber
Cure 3 it is small when, drying temperature be 65 DEG C, that is, obtain uniform coating.
Further described as to such scheme, every 1000 grams of compositions are in the polishing fluid：Mass concentration is 80%
Phosphoric acid solution 700g, mass concentration are 95% sulfuric acid solution 120g, and mass concentration is 20% 110 grams of polyethylene glycol, remaining as
Glycerine.
Further described as to such scheme, the graphene oxide solution preparation method is：Weigh 120 grams of oxygen
Graphite alkene, adds the deionized water of 10 times of volumes, carries out ultrasonic disperse 40 minutes to obtain the final product.
Further described as to such scheme, the additive contains according to mass percent meter：Sodium sulfite accounts for
30%th, manganese sulfate accounts for 25%, zinc sulfate and accounts for 20%, remaining as ammonium molybdate.
Further described as to such scheme, the catalyst is the dilute sulfuric acid that mass concentration is 10%.
Comparative example 1
With differing only in for embodiment 1, by step（1）In electrobrightening processing method change mechanical polishing into, remaining holding
It is constant.
Comparative example 2
With differing only in for embodiment 2, additive and catalyst are added without in coloring liquid, remaining is remained unchanged.
Comparative example 3
With differing only in for embodiment 3, step is omitted（3）The step of middle film graphene oxide, remaining is remained unchanged.
Contrast test
Respectively using embodiment 1-3 and comparative example 1-3 method carry out stainless steel products coloring process, while with it is existing not
Steel electrode color method become rusty as control, the stainless steel and coloring liquid used is identical, keeps the consistent of irrelevant variable,
Acid and alkali corrosion and heat treatment test are carried out after color, result of the test is subjected to record comparison, it is as shown in the table：
As can be seen here：The coloring coating method of surface of stainless steel product provided by the invention, can add stainless steel coloring speed
Quickly, uniform coloring, it is beautiful in colour, tested by surface coating graphene oxide to solve coloring intolerant to temperature and environmental change
The problem of.
Claims (5)
1. the coloring coating method of a kind of surface of stainless steel product, it is characterised in that comprise the following steps：
（1）Surface of stainless steel product is polishing to the lye wiping that surface is smooth, and concentration is 15-18% by 800 mesh sand paper
Wash, then wash with water 2-3 times, then carry out electrobrightening processing, polishing treatment condition is：Polishing fluid is heated to before polishing
50-60 DEG C, polish temperature is 70-80 DEG C, and polishing time is 8-12 minutes, current density 10-12A/dm2, carried out after polishing
Washing；
（2）Mass fraction is added into coloring liquid as the additive of 0.5-0.6% and the catalyst of 0.1-0.2%, after polishing
Stainless steel products is immersed in coloring liquid, electrochemical coloring is carried out at 35-40 DEG C, stainless steel reaches predetermined coloring potential difference
When, it is stopped, stainless steel is taken out and is washed, cure process, cure process are carried out after surface coloring liquid is rinsed well
Mass concentration is placed into after 5-8 minutes as Seal treatment in 1.5-2.0% sodium silicate solutions, heating is rinsed after boiling 3-5 minutes
Drying；
（3）Establish using the stainless steel products after colouring as working electrode, platinum electrode as counterelectrode, calomel electrode be reference electrode
Three-electrode system, using graphene oxide solution as electrolyte solution, deposition film forming is carried out under 4-6V voltages, when film layer is thick
Degree can be stopped after reaching 20-40 nanometer ranges, take out stainless steel, quickly dried up with nitrogen, be done in vacuum drying chamber
When bath curing 2-3 is small, drying temperature is 60-65 DEG C, that is, obtains uniform coating.
2. the coloring coating method of a kind of surface of stainless steel product as claimed in claim 1, it is characterised in that in the polishing fluid
Every 1000 grams of compositions are：Mass concentration is the phosphoric acid solution 6OO-700g of 70-80%, and mass concentration is the sulfuric acid solution of 90-95%
100-120g, mass concentration is 100-110 grams of the polyethylene glycol of 15-20%, remaining as glycerine.
A kind of 3. coloring coating method of surface of stainless steel product as claimed in claim 1, it is characterised in that the graphite oxide
Alkene solution manufacturing method is：100-120 grams of graphene oxide is weighed, adds the deionized water of 8-10 times of volume, carries out ultrasound
Scattered 30-40 minutes to obtain the final product.
4. the coloring coating method of a kind of surface of stainless steel product as claimed in claim 1, it is characterised in that the additive is pressed
Contain according to mass percent meter：Sodium sulfite accounts for 20-30%, manganese sulfate accounts for 20-25%, zinc sulfate accounts for 15-20%, remaining as molybdic acid
Ammonium.
5. the coloring coating method of a kind of surface of stainless steel product as claimed in claim 1, it is characterised in that the catalyst is
Mass concentration is the dilute sulfuric acid of 8-10%.
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| CN201711149294.4A CN107937951A (en) | 2017-11-18 | 2017-11-18 | A kind of coloring coating method of surface of stainless steel product |
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| CN201711149294.4A CN107937951A (en) | 2017-11-18 | 2017-11-18 | A kind of coloring coating method of surface of stainless steel product |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122473A (en) * | 2011-11-21 | 2013-05-29 | 比亚迪股份有限公司 | Electrochemical colouring liquid for stainless steel and electrochemical blacking method for stainless steel |
| CN103866372A (en) * | 2014-03-24 | 2014-06-18 | 无锡宝顺不锈钢有限公司 | Electrochemical coloring solution for stainless steel and coloring method |
| CN105401194A (en) * | 2015-10-30 | 2016-03-16 | 芜湖德鑫汽车部件有限公司 | Automobile doorsill pedal and preparation method thereof |
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2017
- 2017-11-18 CN CN201711149294.4A patent/CN107937951A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122473A (en) * | 2011-11-21 | 2013-05-29 | 比亚迪股份有限公司 | Electrochemical colouring liquid for stainless steel and electrochemical blacking method for stainless steel |
| CN103866372A (en) * | 2014-03-24 | 2014-06-18 | 无锡宝顺不锈钢有限公司 | Electrochemical coloring solution for stainless steel and coloring method |
| CN105401194A (en) * | 2015-10-30 | 2016-03-16 | 芜湖德鑫汽车部件有限公司 | Automobile doorsill pedal and preparation method thereof |
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