CN103866372A - Electrochemical coloring solution for stainless steel and coloring method - Google Patents
Electrochemical coloring solution for stainless steel and coloring method Download PDFInfo
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- CN103866372A CN103866372A CN201410110281.6A CN201410110281A CN103866372A CN 103866372 A CN103866372 A CN 103866372A CN 201410110281 A CN201410110281 A CN 201410110281A CN 103866372 A CN103866372 A CN 103866372A
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Abstract
The present invention relates to an electrochemical coloring solution for stainless steel and coloring method, which is characterized in that the electrochemical coloring solution for stainless steel comprises the following components of 30-80g/L of molybdate, 10-18g/L sulfuric acid,2-5g/L of zinc sulfate, 0.5-5g/L of manganese sulfate, 10-20g/L of sodium nitrate, 0.1-10g/L of sodium malonate and solvent being water. The coloring method comprises (1) removing greasy dirt on the surface of the stainless steel by metal detergent, and then cleaning with hot water; (2) mechanically or electrolytically polishing stainless steel workpieces; (3) then cleaning with hot water; (4) coloring: placing stainless steel workpieces in the electrolytic bath filled with coloring solution, wherein stainless steel workpieces and lead plate are respectively taken as an anode and a cathode, the coloring voltage is 1.5-2.5V, the coloring current is 0.1-20A/dm<2> and the coloring time is 1-15 minutes; (5) washing and drying to obtain the finished product. The coloring solution and coloring method according to the invention can be used for producing high-quality stainless steel products which can meet the performance requirements and consistent color tones.
Description
Technical field
The present invention relates to a kind of stainless steel electrochemical coloring liquid and colorize method.
Background technology
Stainless steel has the popularity of excellent solidity to corrosion and wear resistance and use, has obtained the approval of numerous people and has liked.Along with people's growth in the living standard, Stainless Steel Products, constantly to the development of ornamental aspect, therefore requires also improving constantly to the color of stainless steel surface.
Stainless steel coloring is formed to colour at stainless steel surface exactly, thereby become Color Stainless Steel.Color Stainless Steel suitability for industrialized production comes from the INCO company of Britain in 1973, INCO method is by the mixing solutions that contains high density chromic acid and sulfuric acid of 80 ℃ of stainless steel work-piece infiltrations, ooze stain time length by control, at the translucent chromium oxide film that contains of its Surface Creation different thickness.Due to the effect of this film, the light wave that the light wave of the reflection on its surface is reflected back by stainless steel surface by rete again produces interferes, thereby obtain the interference light of different colours, just can produce the Stainless Steel Products of different interference color by effective controlling diaphragm layer thickness, the colored film layer that above-mentioned stainless steel coloring method obtains is thin, hardness is low and loose, can not meet wear resistance and corrosion proof requirement, and occurs the shortcomings such as the narrow and production control color of color range is unstable.Exist production environment severe; The treatment soln problems such as fast and spent acid processing costs is large that lost efficacy.
Prior art discloses a kind of coloring liquid for stainless steel chemical pigmentation, take water as solution, comprising: molybdate 30-150g/L, sulfuric acid 10-18g/L, vitriol 0.5-5g/L.This electrolytic colouring liquid can only painted fairly simple workpiece, if workpiece is complex-shaped, will because workpiece surface electric current distribution is inhomogeneous, (boss current density be larger, be referred to as a high position, recessed part current density is less, be referred to as low level), thus cause the irregular colour of the workpiece surface after painted even.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of stainless steel electrochemical coloring liquid and colorize method are provided, this coloring liquid and colorize method can be produced the consistent high-quality stainless steel product of color and tint that meets performance requriements.
According to technical scheme provided by the invention, described stainless steel electrochemical coloring liquid, it is characterized in that, comprise following component: molybdate 30 ~ 80g/L, sulfuric acid 10 ~ 18g/L, zinc sulfate 2 ~ 5g/L, manganous sulfate 0.5 ~ 5g/L, SODIUMNITRATE 10 ~ 20g/L, sodium malonate 0.1 ~ 10g/L, solvent is water.
The colorize method of described stainless steel electrochemical coloring liquid, is characterized in that, adopts following methods:
(1) workpiece oil removing: adopt metal brightener to remove the greasy dirt on stainless steel work-piece surface, then use the hot water of 70 ~ 90 ℃ to clean up;
(2) polishing: stainless steel work-piece is carried out to mechanical polishing or electropolishing;
(3) clean: adopt the hot water of 70 ~ 90 ℃ to clean up;
(4) painted: stainless steel work-piece is placed in to the electrolyzer that fills coloring liquid, stainless steel work-piece is anode, stereotype is negative electrode, and painted voltage is 1.5 ~ 2.5V, and painted electric current is 0.1 ~ 20A/dm
2, the painted time is 1 ~ 15 minute;
(5) painted rear cleaning: adopt the hot water of 70 ~ 90 ℃ to clean up, after oven dry, obtain finished product.
The present invention has the following advantages: (1) the present invention, by adjusting coloring liquid formula, has introduced SODIUMNITRATE in system, as oxygenant, improves oxidation rate, has promoted look film rate of growth, thereby improves look film thickness and look membrane stability; In system, introduce sodium malonate, can stablize the pH value of coloring liquid, increased the diffusibility of coloring liquid, made evenly light of look film color and luster; The sulfuric acid of introducing in system can carry out cleaning action to metallic surface, is beneficial to the formation of surface colour film; (2) coloring liquid of the present invention and coloring process are simple, coloring stabilized, and reliability and control accuracy are high.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment mono-: a kind of stainless steel electrochemical coloring liquid, comprises following component: molybdate 30g/L, sulfuric acid 10g/L, zinc sulfate 2g/L, manganous sulfate 0.5g/L, SODIUMNITRATE 10g/L, sodium malonate 0.1g/L, solvent is water.
The colorize method of described stainless steel electrochemical coloring liquid, is characterized in that, adopts following methods:
(1) workpiece oil removing: adopt metal brightener to remove the greasy dirt on stainless steel work-piece surface, then clean up with the hot water of 70 ℃;
(2) polishing: stainless steel work-piece is carried out to mechanical polishing or electropolishing;
(3) clean: adopt the hot water of 70 ℃ to clean up;
(4) painted: stainless steel work-piece is placed in to the electrolyzer that fills coloring liquid, stainless steel work-piece is anode, stereotype is negative electrode, and painted voltage is 1.5V, and painted electric current is 0.1A/dm
2, the painted time is 15 minutes;
(5) painted rear cleaning: adopt the hot water of 70 ℃ to clean up, after oven dry, obtain finished product.
Embodiment bis-: a kind of stainless steel electrochemical coloring liquid, comprises following component: molybdate 80g/L, sulfuric acid 18g/L, zinc sulfate 5g/L, manganous sulfate 5g/L, SODIUMNITRATE 20g/L, sodium malonate 10g/L, solvent is water.
The colorize method of described stainless steel electrochemical coloring liquid, is characterized in that, adopts following methods:
(1) workpiece oil removing: adopt metal brightener to remove the greasy dirt on stainless steel work-piece surface, then clean up with the hot water of 90 ℃;
(2) polishing: stainless steel work-piece is carried out to mechanical polishing or electropolishing;
(3) clean: adopt the hot water of 90 ℃ to clean up;
(4) painted: stainless steel work-piece is placed in to the electrolyzer that fills coloring liquid, stainless steel work-piece is anode, stereotype is negative electrode, and painted voltage is 2.5V, and painted electric current is 20A/dm
2, the painted time is 15 minutes;
(5) painted rear cleaning: adopt the hot water of 90 ℃ to clean up, after oven dry, obtain finished product.
Embodiment tri-: a kind of stainless steel electrochemical coloring liquid, comprises following component: molybdate 50g/L, sulfuric acid 15g/L, zinc sulfate 3g/L, manganous sulfate 2g/L, SODIUMNITRATE 15g/L, sodium malonate 5g/L, solvent is water.
The colorize method of described stainless steel electrochemical coloring liquid, is characterized in that, adopts following methods:
(1) workpiece oil removing: adopt metal brightener to remove the greasy dirt on stainless steel work-piece surface, then clean up with the hot water of 80 ℃;
(2) polishing: stainless steel work-piece is carried out to mechanical polishing or electropolishing;
(3) clean: adopt the hot water of 80 ℃ to clean up;
(4) painted: stainless steel work-piece is placed in to the electrolyzer that fills coloring liquid, stainless steel work-piece is anode, stereotype is negative electrode, and painted voltage is 2V, and painted electric current is 10A/dm
2, the painted time is 10 minutes;
(5) painted rear cleaning: adopt the hot water of 80 ℃ to clean up, after oven dry, obtain finished product.
Claims (2)
1. a stainless steel electrochemical coloring liquid, is characterized in that, comprises following component: molybdate 30 ~ 80g/L, sulfuric acid 10 ~ 18g/L, zinc sulfate 2 ~ 5g/L, manganous sulfate 0.5 ~ 5g/L, SODIUMNITRATE 10 ~ 20g/L, sodium malonate 0.1 ~ 10g/L, solvent is water.
2. adopt a colorize method for stainless steel electrochemical coloring liquid as claimed in claim 1, it is characterized in that, adopt following methods:
(1) workpiece oil removing: adopt metal brightener to remove the greasy dirt on stainless steel work-piece surface, then use the hot water of 70 ~ 90 ℃ to clean up;
(2) polishing: stainless steel work-piece is carried out to mechanical polishing or electropolishing;
(3) clean: adopt the hot water of 70 ~ 90 ℃ to clean up;
(4) painted: stainless steel work-piece is placed in to the electrolyzer that fills coloring liquid, stainless steel work-piece is anode, stereotype is negative electrode, and painted voltage is 1.5 ~ 2.5V, and painted electric current is 0.1 ~ 20A/dm
2, the painted time is 1 ~ 15 minute;
(5) painted rear cleaning: adopt the hot water of 70 ~ 90 ℃ to clean up, after oven dry, obtain finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410110281.6A CN103866372A (en) | 2014-03-24 | 2014-03-24 | Electrochemical coloring solution for stainless steel and coloring method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410110281.6A CN103866372A (en) | 2014-03-24 | 2014-03-24 | Electrochemical coloring solution for stainless steel and coloring method |
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| CN103866372A true CN103866372A (en) | 2014-06-18 |
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| CN201410110281.6A Pending CN103866372A (en) | 2014-03-24 | 2014-03-24 | Electrochemical coloring solution for stainless steel and coloring method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105296988A (en) * | 2015-11-23 | 2016-02-03 | 佛山市高明俊品金属制品有限公司 | Chemical coloring method for stainless steel |
| 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 |
| CN107937951A (en) * | 2017-11-18 | 2018-04-20 | 安徽东耀建材有限公司 | A kind of coloring coating method of surface of stainless steel product |
| CN110340160A (en) * | 2019-07-22 | 2019-10-18 | 杨子荣 | A kind for the treatment of process of stainless steel cold-rolled sheet |
| CN111364067A (en) * | 2020-04-11 | 2020-07-03 | 傅嘉英 | Electrolytic cell for preparing nano metal |
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| JPS4827181B1 (en) * | 1967-12-21 | 1973-08-20 | ||
| CN1676675A (en) * | 2005-01-04 | 2005-10-05 | 华南理工大学 | Stainless steel electrochemical colouring method |
| CN1847456A (en) * | 2006-05-11 | 2006-10-18 | 中南大学 | Fast colorizing process for stainless steel surface |
| CN101152820A (en) * | 2006-09-25 | 2008-04-02 | 佛山市顺德区汉达精密电子科技有限公司 | Technique for producing multicolor pattern on stainless steel surface |
| CN101173367A (en) * | 2006-10-31 | 2008-05-07 | 佛山市顺德区汉达精密电子科技有限公司 | Stainless steel galvano-chemistry bepainting technique |
| CN101994109A (en) * | 2009-08-14 | 2011-03-30 | 比亚迪股份有限公司 | Stainless steel coloring liquid, preparation method and coloring method |
| CN102703956A (en) * | 2012-06-08 | 2012-10-03 | 太原理工大学 | Ultrasonic chemical coloring method for stainless steel |
| CN103031552A (en) * | 2011-10-09 | 2013-04-10 | 张晓波 | Production method for chemically coloring low-chromium stainless steel into black |
| CN103114320A (en) * | 2013-02-27 | 2013-05-22 | 湖南中骏科技有限公司 | Colouring solution used for stainless steel electrochemical colouring and stainless steel electrochemical colouring method |
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2014
- 2014-03-24 CN CN201410110281.6A patent/CN103866372A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS4827181B1 (en) * | 1967-12-21 | 1973-08-20 | ||
| CN1676675A (en) * | 2005-01-04 | 2005-10-05 | 华南理工大学 | Stainless steel electrochemical colouring method |
| CN1847456A (en) * | 2006-05-11 | 2006-10-18 | 中南大学 | Fast colorizing process for stainless steel surface |
| CN101152820A (en) * | 2006-09-25 | 2008-04-02 | 佛山市顺德区汉达精密电子科技有限公司 | Technique for producing multicolor pattern on stainless steel surface |
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| CN101994109A (en) * | 2009-08-14 | 2011-03-30 | 比亚迪股份有限公司 | Stainless steel coloring liquid, preparation method and coloring method |
| CN103031552A (en) * | 2011-10-09 | 2013-04-10 | 张晓波 | Production method for chemically coloring low-chromium stainless steel into black |
| CN102703956A (en) * | 2012-06-08 | 2012-10-03 | 太原理工大学 | Ultrasonic chemical coloring method for stainless steel |
| CN103114320A (en) * | 2013-02-27 | 2013-05-22 | 湖南中骏科技有限公司 | Colouring solution used for stainless steel electrochemical colouring and stainless steel electrochemical colouring method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105296988A (en) * | 2015-11-23 | 2016-02-03 | 佛山市高明俊品金属制品有限公司 | Chemical coloring method for stainless steel |
| CN107937951A (en) * | 2017-11-18 | 2018-04-20 | 安徽东耀建材有限公司 | A kind of coloring coating method of surface of stainless steel product |
| CN110340160A (en) * | 2019-07-22 | 2019-10-18 | 杨子荣 | A kind for the treatment of process of stainless steel cold-rolled sheet |
| CN111364067A (en) * | 2020-04-11 | 2020-07-03 | 傅嘉英 | Electrolytic cell for preparing nano metal |
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Application publication date: 20140618 |