CN1005420B - Stainless steel coating with double color by single coloration - Google Patents

Stainless steel coating with double color by single coloration Download PDF

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Publication number
CN1005420B
CN1005420B CN85108872.4A CN85108872A CN1005420B CN 1005420 B CN1005420 B CN 1005420B CN 85108872 A CN85108872 A CN 85108872A CN 1005420 B CN1005420 B CN 1005420B
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China
Prior art keywords
stainless steel
painted
current potential
carries out
treatment
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Expired
Application number
CN85108872.4A
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Chinese (zh)
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CN85108872A (en
Inventor
白新德
蒋季生
陈鹤鸣
马春来
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Tsinghua University
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Tsinghua University
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Priority to CN85108872.4A priority Critical patent/CN1005420B/en
Publication of CN85108872A publication Critical patent/CN85108872A/en
Publication of CN1005420B publication Critical patent/CN1005420B/en
Expired legal-status Critical Current

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Abstract

The present invention relates to a double-color (such as purple-brown, blue-yellow, golden yellow-red, etc.) coloring technology having stereo effect and a single-color coloring technology having obvious difference (such as dark blue-light blue, etc.) and obvious stereo effect for stainless steel by single coloration. Tests in various environments by various methods show that a colored film has the properties of corrosion resistance, light resistance, heat resistance, etc. The colored film is beautiful and stable, and the technology is easy to master. The present invention can be used in the fields of architectural decoration, arts and crafts, household utensils, instruments and meters, advertisement signs, etc.

Description

Stainless steel coating with double color by single coloration
Content of the present invention is the method that the Stainless Steel Watch face colouring is handled.It can be used for fields such as building decoration, industrial art, home appliances, instrument, Advertisement label.
Usually, stainless steel immerses chromic acid and adds the vitriolic electrolyte solution, and at a certain temperature, stainless steel and medium generation chemical reaction form thin film (being coloring film) on its surface.Under natural light irradiation, because this tunic of interference of light effect can present interference color.The principle that it and lather present interference color in the sun roughly the same.Generally can obtain the coloring film of different thickness, and then can obtain different painted colors by control stainless steel coloring parameter.This colorize method is called as the method because of section (INCO) in the world.In order to improve above-mentioned articles colored artistry, propose to coat acidproof paint earlier on the stainless steel surface in the clear 56-22953 literary composition of Japan's special permission communique, carry out electropolishing then, remove coating again, can obtain the Stainless Steel Products of recessed pattern.And then carry out above-mentioned painted processing, can obtain the monochromatic Stainless Steel Products of hatching effect.Do not provide concrete processing parameter in this patent.
Because above-mentioned colorize method, once painted processing can only obtain monochrome, hatching effect is not fairly obvious yet, in order further to improve the artistry of stainless steel coloring goods, strengthen articles colored shade stereoeffect, save the painted time and the energy, we have invented the once double-colored colorize method that obvious stereoeffect is arranged of stainless steel, and have studied the structure, composition, thickness of coloring film, multiple performance such as anti-corrosion, heat-resisting, wear-resisting.
Its way is that articles colored elder generation gives processing through hairline, coats acid proof coating pattern or font then on articles colored, carries out polish etch again and handles (as H 3PO 4 Add H 2SO 4Adding water is polishing fluid) after remove acid proof coating, put into temperature and be 60 ℃~90 ℃ H 2SO 4Add Cr 2O 3Coloring liquid in soak, with reference electrode (as saturated calomel electrode or platinum electrode) as standard, measure the potential difference of stainless steel surface and reference electrode, reflect the variation in thickness of coloring film with this, behind certain hour, measure the size of potential value, when turning the variation taken place, can reach the flex point of potential value change curve.After this stainless steel begins in coloring liquid painted, controlling painted current potential and critical potential poor (or the painted time) current potential between monochrome coloring potential differences such as brown, blue look, golden yellow, redness, green is the border current potential, once paintedly obtains two kinds of adjacent colors.Also can change the once painted beautiful color that obtains significantly dark brown-shallow palm fibre, deep blue-shade stereoeffects such as shallow orchid of painted current potential simultaneously.In order to improve the wear resisting property of pigmented layer, still need at hardening solution after painted (as CrO 3Add H 3PO 3Add water) carry out the cathodic reduction dura mater and handle, after washing-drying, can be stablized again, wear-resisting, beautiful articles colored.
Advantage of the present invention is:
Once painted double-colored goods that can obtain obvious shade stereoeffect or once paintedly can obtain the very big monochromatic goods of obvious shade stereoeffect depth difference, color and luster is attractive in appearance, look film stability and durability.
Coloring process does not need dyestuff, by the different natural light interference color that form of look film thickness, if adopt photoetching technique to prepare supercoat, can make the single font that conforms to the principle of simplicity keep original feature and sharpness to complicated landscape pattern;
Coloring process is simple and easy to grasp, and saves the operation and the energy, is convenient to produce in batches.
Implementing method of the present invention is:
Stainless steel (18-8 type austenite) gives processing through 75~280 order abrasive band hairlines, carries out the pattern that optical graving figure obtains having supercoat then on stainless steel coloring spare, again electropolishing under following polishing fluid and processing parameter.
The electrolytic brightening process parameter:
Solution composition: H 3PO 4(proportion: 1.7 gram per centimeters 3) weight 60%
H 2SO 4(proportion: 1.84 gram per centimeters 3) weight 20%
Water: surplus
Current density: 60~80 peace/decimetres 2(direct current)
Polish temperature: 65 ℃~75 ℃
Time: 8~10 minutes (painted connects positive plate).
After washing is handled in electropolishing, removes supercoat (as be soaked in water can slough photoresist material) and carry out painted processing again in following coloring liquid:
Coloring solution: H 2SO 4(490 grams per liter) adds CrO 3(250 grams per liter)
Colour temperature: 75 ℃~80 ℃
Painted control of Electric potentials: polish and remove to be colored of supercoat and be dipped in the coloring liquid, increase in time, tendency of changes as shown in Figure 1 will take place in painted relative reference telegram (saturated calomel electrode) potential value.
From the A point, current potential increases beginning in time and rises once more, and the A point is called as flex point or painted starting point current potential.Actual painted current potential and critical potential difference are painted potential difference (△ V), and critical potential is relevant with painted condition and material.
When the potential difference of painted current potential and critical potential is 5~6mv, occur purple-shallow palm fibre is double-colored, when potential difference is 8~9mv, occur blue-pale yellow double-colored, occur when potential difference is 14~15mv golden yellow-during red double-colored, 16~17mv, occur red-green double-colored.
Painted processing after washing to put into composition be CrO 3(250 grams per liter) adds H 3PO 4(2.5 grams per liters, density: 1.7 gram per centimeters 3) add in the hardening solution of water (surplus), articles colored is negative electrode, current density is controlled at 0.2~0.5 peace/decimetre 2, dura mater was handled 5~10 minutes, and can obtain the tangible stereoeffect pattern of double-colored or dark-shallow difference after the taking-up again through washing-drying treatment articles colored.
To coloring film under multiple medium and condition, carried out long-term and short-term quicken Kesternich test, test-results such as heat-resisting, fast light, wear-resisting all illustrate the look film stablize, durable.

Claims (10)

1, the double-colored staining method of the once heterochromatic accent of a kind of stainless steel utilizes chromic acid to add sulphuric acid soln and different painted current potential carries out, and it is characterized in that this method mainly is made up of following steps:
(1) stainless steel surface carries out the hairline pre-treatment,
(2) pattern or font coated protective layer and polish pre-treatment,
(3) control painted current potential in adjacent monochrome coloring potential region,
(4) post bake is handled.
2, a kind of stainless steel is once with tone depth staining method, utilizes chromic acid to add sulphuric acid soln and different painted current potential carries out, and it is characterized in that this method mainly is made up of following steps:
(1) stainless steel surface carries out the hairline pre-treatment,
(2) pattern or font coated protective layer and polish pre-treatment,
(3) control painted current potential in the monochromatic potential value of routine,
(4) post bake is handled.
CN85108872.4A 1985-12-14 1985-12-14 Stainless steel coating with double color by single coloration Expired CN1005420B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN85108872.4A CN1005420B (en) 1985-12-14 1985-12-14 Stainless steel coating with double color by single coloration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN85108872.4A CN1005420B (en) 1985-12-14 1985-12-14 Stainless steel coating with double color by single coloration

Publications (2)

Publication Number Publication Date
CN85108872A CN85108872A (en) 1987-06-24
CN1005420B true CN1005420B (en) 1989-10-11

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CN85108872.4A Expired CN1005420B (en) 1985-12-14 1985-12-14 Stainless steel coating with double color by single coloration

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105112983A (en) * 2015-08-20 2015-12-02 宏旺投资集团有限公司 Processing method for surface coloring of stainless steel plates
CN105506702B (en) * 2015-12-11 2017-08-25 哈尔滨飞机工业集团有限责任公司 One kind brushes anodization thicknesses of layers detection method
CN105729313A (en) * 2016-02-25 2016-07-06 苏州市永通不锈钢有限公司 Stainless steel rubberizing and coloring treatment method
CN106086995A (en) * 2016-06-07 2016-11-09 安阳工学院 A kind of stainless steel electrochemical the method for color spectrum
CN106757281B (en) * 2016-12-29 2019-04-09 广东工业大学 A kind of protective agent composition and anticorrosive bonding wire and preparation method thereof
CN110004483B (en) * 2019-05-13 2020-01-14 湖北大学 Preparation method of matte colored super-hydrophobic stainless steel based on square wave etching

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