CN108004533A - A kind of galvanized sheet passivating solution - Google Patents
A kind of galvanized sheet passivating solution Download PDFInfo
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- CN108004533A CN108004533A CN201711495138.3A CN201711495138A CN108004533A CN 108004533 A CN108004533 A CN 108004533A CN 201711495138 A CN201711495138 A CN 201711495138A CN 108004533 A CN108004533 A CN 108004533A
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- galvanized sheet
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
- C23C22/36—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides containing also phosphates
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- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
- Chemically Coating (AREA)
Abstract
The present invention discloses a kind of galvanized sheet passivating solution, its raw material includes：Carboxyethyl phenyl sodium hypophosphite, 1,3,4 thiadiazoles, 2 aminoalkyl phosphonic acid sodium, cerium chloride, molybdenum trisulfate, sodium metasilicate, boric acid, fluorine zirconic acid, citric acid, hydrogen peroxide and water.The present invention also proposes the preparation method of galvanized sheet passivating solution, includes the following steps：Cerium chloride, sodium metasilicate, molybdenum trisulfate, carboxyethyl phenyl sodium hypophosphite, 1,3,4 thiadiazoles, 2 aminoalkyl phosphonic acid sodium is soluble in water, stir evenly obtained prefabricated solution A；Boric acid, fluorine zirconic acid, citric acid are added to the water, stir evenly obtained prefabricated solution B；Hydrogen peroxide is added into B in prefabricated solution, adjusts PH most 13, obtained tin plate passivating solution.Passivating solution of the present invention improves the corrosion-resistant and antioxygenic property of galvanized sheet, green non-poisonous, safety and environmental protection.
Description
Technical field
The present invention relates to technical field of metal anti-corrosion, more particularly to a kind of galvanized sheet passivating solution.
Background technology
Galvanized sheet is to prevent surface of steel plate from extending its service life by corrosion, one layer of metal being coated with surface of steel plate
Zinc, if without post processing well after zinc plating, coating will soon be dimmed, and occurs white corrosion product in succession.For
The chemism of zinc is reduced, often using chromatedsolution come Passivation Treatment, makes to form one layer of chromate on zinc layers surface and turns
Change film layer.But chromate is a kind of extremely toxic substance, there is very big harm to human body and environment, be particularly galvanized sheet uses family expenses
Electric appliance, furniture industry, such as refrigerator, washing machine, air-conditioning, micro-wave oven, wardrobe, bookshelf etc., it is very harmful to people, it would be highly desirable to change
Into.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of galvanized sheet passivating solution, improves galvanized sheet
Corrosion-resistant and antioxygenic property, safety and environmental protection.
The present invention proposes a kind of galvanized sheet passivating solution, its raw material includes by weight：Carboxyethyl phenyl sodium hypophosphite 10-
25 parts, 1,3,4- thiadiazoles -2- amino -10-25 parts of alkyl Alendronate, 5-10 parts of sodium metasilicate, 5-10 parts of cerium chloride, molybdenum trisulfate 2-
4 parts, 1-5 parts of boric acid, 1-3 parts of fluorine zirconic acid, 1-3 parts of citric acid, 3-6 parts of hydrogen peroxide, 90-180 parts of water.
Preferably, its raw material includes by weight：15-20 parts of carboxyethyl phenyl sodium hypophosphite, 1,3,4- thiadiazoles -2- ammonia
Base -15-20 parts of alkyl Alendronate, 6-8 parts of sodium metasilicate, 6-8 parts of cerium chloride, 2.5-3.5 parts of molybdenum trisulfate, 2-4 parts of boric acid, fluorine zirconic acid
1.5-2.5 parts, 1.5-2.5 parts of citric acid, 3.5-5 parts of hydrogen peroxide, 120-150 parts of water.
The present invention also proposes the preparation method of above-mentioned galvanized sheet passivating solution, includes the following steps：
S1, by cerium chloride, molybdenum trisulfate, carboxyethyl phenyl sodium hypophosphite, 1,3,4- thiadiazoles -2- amino-alkyl Alendronate,
Sodium metasilicate is soluble in water, stirs evenly obtained prefabricated solution A；
S2, after fluorine zirconic acid, boric acid and citric acid are dissolved in water, add in prefabricated solution A, stir evenly obtained prefabricated solution B；
S3, add hydrogen peroxide in prefabricated solution B, adjusts PH most 1-3, obtained galvanized sheet passivating solution.
Rare earth element has excellent chemical property, sheet metal surface can be played and good insulating effect, barrier
Oxygen and contaminant surface corrosion plate, molybdate are to generally acknowledge nuisanceless material, hypotoxicity, and corrosion mitigating effect is excellent, to contain N, S, O
Heterocyclic organic compounds and the phosphonic acids compounds corrosion inhibition good to metal, the silicon in silicate deposited with inorganic form
, there is good slow releasing function, passivating solution proposed by the present invention using carboxyethyl phenyl sodium hypophosphite, sodium metasilicate, cerium chloride,
Molybdenum trisulfate and 1,3,4- thiadiazoles -2- amino-alkyl Alendronate form organic and inorganic compound system instead of traditional chromic salts and make
It for main film forming substance, can be chemically reacted with Several Thiourea Derivatives on Zinc Plate Surface, form the passivating film with protective effect；With boric acid, fluorine
Zirconic acid and citric acid replace the sulfuric acid or nitric acid that conventional passivation liquid often uses, solvent and film formation reaction as main film forming substance
Required hydrionic main offer is former, while can also react with zinc coat, so as to improve the corrosion resistance of passivating film
Can, boric acid, citric acid are added in passivating solution, adjustment effect can be played to pH value, so as to further improve the steady of passivating solution
It is qualitative；Using the oxidisability of hydrogen peroxide, accelerate film forming procedure, improve passivation efficiency.
Embodiment
In the following, technical scheme is described in detail by specific embodiment.
Embodiment 1
A kind of galvanized sheet passivating solution, its raw material include by weight：10 parts of carboxyethyl phenyl sodium hypophosphite, 1,3,4- thiophene
Diazole -2- amino -10 parts of alkyl Alendronate, 5 parts of sodium metasilicate, 5 parts of cerium chloride, 2 parts of molybdenum trisulfate, 1 part of boric acid, 1 part of fluorine zirconic acid, lemon
1 part of lemon acid, 3 parts of hydrogen peroxide, 90 parts of water.
Embodiment 2
A kind of galvanized sheet passivating solution, its raw material include by weight：25 parts of carboxyethyl phenyl sodium hypophosphite, 1,3,4- thiophene
Diazole -2- amino -25 parts of alkyl Alendronate, 10 parts of sodium metasilicate, 10 parts of cerium chloride, 4 parts of molybdenum trisulfate, 5 parts of boric acid, 3 parts of fluorine zirconic acid,
3 parts of citric acid, 6 parts of hydrogen peroxide, 180 parts of water.
Embodiment 3
A kind of galvanized sheet passivating solution, its raw material include by weight：16 parts of carboxyethyl phenyl sodium hypophosphite, 1,3,4- thiophene
Diazole -2- amino -16 parts of alkyl Alendronate, 7 parts of sodium metasilicate, 7 parts of cerium chloride, 2.5 parts of molybdenum trisulfate, 2 parts of boric acid, fluorine zirconic acid 1.5
Part, 1.5 parts of citric acid, 3.5 parts of hydrogen peroxide, 130 parts of water.
The preparation method of above-mentioned galvanized sheet passivating solution, includes the following steps：
S1, by cerium chloride, molybdenum trisulfate, carboxyethyl phenyl sodium hypophosphite, 1,3,4- thiadiazoles -2- amino-alkyl Alendronate,
Sodium metasilicate is soluble in water, stirs evenly obtained prefabricated solution A；
S2, add in prefabricated solution A after fluorine zirconic acid, boric acid and citric acid are dissolved in water, and stirs evenly obtained prefabricated solution B；
S3, add hydrogen peroxide in prefabricated solution B, adjusts PH most 1.5, obtained galvanized sheet passivating solution.
Examples of implementation 4
A kind of galvanized sheet passivating solution, its raw material include by weight：19 parts of carboxyethyl phenyl sodium hypophosphite, 1,3,4- thiophene
Diazole -2- amino -19 parts of alkyl Alendronate, 8 parts of sodium metasilicate, 8 parts of cerium chloride, 2.5 parts of molybdenum trisulfate, 3.5 parts of boric acid, fluorine zirconic acid
2.5 parts, 2.5 parts of citric acid, 4.5 parts of hydrogen peroxide, 140 parts of water.
The preparation method of above-mentioned galvanized sheet passivating solution, includes the following steps：
S1, by cerium chloride, molybdenum trisulfate, carboxyethyl phenyl sodium hypophosphite, 1,3,4- thiadiazoles -2- amino-alkyl Alendronate,
Sodium metasilicate is soluble in water, stirs evenly obtained prefabricated solution A；
S2, add in prefabricated solution A after fluorine zirconic acid, boric acid and citric acid are dissolved in water, and stirs evenly obtained prefabricated solution B；
S3, add hydrogen peroxide in prefabricated solution B, adjusts PH most 2.5, obtained galvanized sheet passivating solution.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (3)
1. a kind of galvanized sheet passivating solution, it is characterised in that its raw material includes by weight：Carboxyethyl phenyl sodium hypophosphite 10-
25 parts, 1,3,4- thiadiazoles -2- amino -10-25 parts of alkyl Alendronate, 5-10 parts of sodium metasilicate, 5-10 parts of cerium chloride, molybdenum trisulfate 2-
4 parts, 1-5 parts of boric acid, 1-3 parts of fluorine zirconic acid, 1-3 parts of citric acid, 3-6 parts of hydrogen peroxide, 90-180 parts of water.
2. galvanized sheet passivating solution according to claim 1, it is characterised in that its raw material includes by weight：Carboxyethyl benzene
15-20 parts of base sodium hypophosphite, 1,3,4- thiadiazoles -2- amino -15-20 parts of alkyl Alendronate, 6-8 parts of sodium metasilicate, cerium chloride 6-8
Part, 2.5-3.5 parts of molybdenum trisulfate, 2-4 parts of boric acid, 1.5-2.5 parts of fluorine zirconic acid, 1.5-2.5 parts of citric acid, 3.5-5 parts of hydrogen peroxide, water
120-150 parts.
3. a kind of preparation method of galvanized sheet passivating solution as claimed in claim 1 or 2, it is characterised in that include the following steps：
S1, by cerium chloride, molybdenum trisulfate, carboxyethyl phenyl sodium hypophosphite, 1,3,4- thiadiazoles -2- amino-alkyl Alendronate, silicic acid
Sodium is soluble in water, stirs evenly obtained prefabricated solution A；
S2, after fluorine zirconic acid, boric acid and citric acid are dissolved in water, add in prefabricated solution A, stir evenly obtained prefabricated solution B；
S3, add hydrogen peroxide in prefabricated solution B, adjusts PH most 1-3, obtained galvanized sheet passivating solution.
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| CN201711495138.3A CN108004533A (en) | 2017-12-31 | 2017-12-31 | A kind of galvanized sheet passivating solution |
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| CN201711495138.3A CN108004533A (en) | 2017-12-31 | 2017-12-31 | A kind of galvanized sheet passivating solution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109943835A (en) * | 2019-04-30 | 2019-06-28 | 兴化市华成镀锌管件有限公司 | A kind of preparation method of hot galvanized layer rare-earth salt passivation liquid |
Citations (5)
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| CN101250699A (en) * | 2008-03-27 | 2008-08-27 | 武汉科技大学 | Chromium-free passivation liquid for galvanized sheet and manufacture method thereof |
| CN103114281A (en) * | 2012-11-22 | 2013-05-22 | 天长市飞龙金属制品有限公司 | Chromium-free passivation solution |
| CN103409740A (en) * | 2013-06-15 | 2013-11-27 | 天津醒山科技有限公司 | Chrome-free metal deactivator |
| CN104060257A (en) * | 2014-05-26 | 2014-09-24 | 安徽红桥金属制造有限公司 | Chromium-free passivator for zinc coating and preparation method of chromium-free passivator |
| CN104561974A (en) * | 2014-11-14 | 2015-04-29 | 无锡伊佩克科技有限公司 | Chromium-free passivation solution for electro-galvanized steel plate and preparation method of passivation solution |
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2017
- 2017-12-31 CN CN201711495138.3A patent/CN108004533A/en active Pending
Patent Citations (5)
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| CN101250699A (en) * | 2008-03-27 | 2008-08-27 | 武汉科技大学 | Chromium-free passivation liquid for galvanized sheet and manufacture method thereof |
| CN103114281A (en) * | 2012-11-22 | 2013-05-22 | 天长市飞龙金属制品有限公司 | Chromium-free passivation solution |
| CN103409740A (en) * | 2013-06-15 | 2013-11-27 | 天津醒山科技有限公司 | Chrome-free metal deactivator |
| CN104060257A (en) * | 2014-05-26 | 2014-09-24 | 安徽红桥金属制造有限公司 | Chromium-free passivator for zinc coating and preparation method of chromium-free passivator |
| CN104561974A (en) * | 2014-11-14 | 2015-04-29 | 无锡伊佩克科技有限公司 | Chromium-free passivation solution for electro-galvanized steel plate and preparation method of passivation solution |
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| 胡海蓉: "絮凝剂、铜缓蚀剂的合成及其在工业水处理中的应用", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
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| CN109943835A (en) * | 2019-04-30 | 2019-06-28 | 兴化市华成镀锌管件有限公司 | A kind of preparation method of hot galvanized layer rare-earth salt passivation liquid |
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Application publication date: 20180508 |