CN108004531A - A kind of tin plate passivating solution - Google Patents
A kind of tin plate passivating solution Download PDFInfo
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- CN108004531A CN108004531A CN201711495015.XA CN201711495015A CN108004531A CN 108004531 A CN108004531 A CN 108004531A CN 201711495015 A CN201711495015 A CN 201711495015A CN 108004531 A CN108004531 A CN 108004531A
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- tin plate
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- passivating solution
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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
- C23C22/07—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 phosphates
- C23C22/08—Orthophosphates
- C23C22/10—Orthophosphates containing oxidants
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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)
- Chemically Coating (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The present invention discloses a kind of tin plate passivating solution, its raw material includes：Sodium hypophosphite, 1,3,4 thiadiazoles, 2 aminoalkyl phosphonic acid sodium, cerium chloride, molybdenum trisulfate, boric acid, phosphoric acid, citric acid, hydrogen peroxide and water.The present invention also proposes the preparation method of tin plate passivating solution, includes the following steps：By cerium chloride, molybdenum trisulfate, sodium hypophosphite, 1,3,4 thiadiazoles, 2 aminoalkyl phosphonic acid sodium is soluble in water, stirs evenly obtained prefabricated solution A；Boric acid, phosphoric 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 tin plate, 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 tin plate passivating solution.
Background technology
Tin plate (being commonly called as tinplate) refers to that surface is coated with the steel plate of a thin layer metallic tin.Tin plate is by low carbon steel rolling
Into the steel plate of about 2mm thickness, processed through pickling, cold rolling, electrolytic cleaned annealing, smooth, cutting edge, then it is cleaned, plating, soft heat, blunt
Cut into tin plate plate finished product after change processing, oiling, tin plating used in tin plate is high purity tin (Sn>99.8%).Tin layers also may be used
Applied with hot dipping method, tin plate tin layers obtained by this method are thicker, big with tin amount, are not required to carry out purification process after tin plating.In order to carry
Corrosion resistance, antioxygenic property and the sulfuration resistant blackening performance of high tin plate, it usually needs processing is passivated to tin plate,
In the prior art, the passivation to tin plate is to adopt chromate to be passivated, chromating excellent performance, due to a kind of violent in toxicity
Matter, has human body and environment very big harm, and the purposes of particularly tin plate is generally used as the packaging material of food, endangers pole
Greatly, it would be highly desirable to improve.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of tin plate passivating solution, improves tin plate
Corrosion-resistant and antioxygenic property, safety and environmental protection.
The present invention proposes a kind of tin plate passivating solution, its raw material includes by weight：10-25 parts of sodium hypophosphite, 1,3,
4- thiadiazoles-2- amino-10-25 parts of alkyl Alendronate, 5-10 parts of cerium chloride, 2-4 parts of molybdenum trisulfate, 1-5 parts of boric acid, phosphatase 11-3
Part, 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 sodium hypophosphite, 1,3,4- thiadiazoles -2- amino-alkyl phosphine
Sour sodium 15-20 parts, 6-8 parts of cerium chloride, 2.5-3.5 parts of molybdenum trisulfate, 2-4 parts of boric acid .5-2.5 parts of phosphatase 11, citric acid 1.5-2.5
Part, 3.5-5 parts of hydrogen peroxide, 120-150 parts of water.
The present invention also proposes the preparation method of above-mentioned tin plate passivating solution, includes the following steps：
S1, by cerium chloride, molybdenum trisulfate, sodium hypophosphite, 1,3,4- thiadiazoles -2- amino-alkyl Alendronate is soluble in water, stirs
Mix uniformly obtained prefabricated solution A；
S2, after phosphoric 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 tin plate 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, passivating solution proposed by the present invention is using time phosphorus
Sour sodium, cerium chloride, molybdenum trisulfate and 1,3,4- thiadiazoles -2- amino-alkyl Alendronate replace traditional chromic salts as main film forming
Material, can chemically react with tin plating layer surface, form the passivating film with protective effect；With boric acid, phosphoric acid and citric acid
The sulfuric acid or nitric acid often used instead of conventional passivation liquid, as main film forming substance the required hydrogen of solvent and film formation reaction from
The main offer of son is former, while can also react with tin coating, so that the corrosion resistance of passivating film is improved, in passivating solution
Boric acid, citric acid are added, adjustment effect can be played to pH value, so as to further improve the stability of passivating solution；Utilize dioxygen
The oxidisability of water, accelerates film forming procedure, improves passivation efficiency.
Embodiment
In the following, technical scheme is described in detail by specific embodiment.
Embodiment 1
A kind of tin plate passivating solution, its raw material include by weight：10 parts of sodium hypophosphite, 1,3,4- thiadiazoles -2- ammonia
Base -10 parts of alkyl Alendronate, 5 parts of cerium chloride, 2 parts of molybdenum trisulfate, 1 part of boric acid, phosphatase 11 part, 1 part of citric acid, 3 parts of hydrogen peroxide, water
90 parts.
Embodiment 2
A kind of tin plate passivating solution, its raw material include by weight：25 parts of sodium hypophosphite, 1,3,4- thiadiazoles -2- ammonia
Base -25 parts of alkyl Alendronate, 10 parts of cerium chloride, 4 parts of molybdenum trisulfate, 5 parts of boric acid, 3 parts of phosphoric acid, 3 parts of citric acid, 6 parts of hydrogen peroxide, water
180 parts.
Embodiment 3
A kind of tin plate passivating solution, its raw material include by weight：16 parts of sodium hypophosphite, 1,3,4- thiadiazoles -2- ammonia
Base -16 parts of alkyl Alendronate, 7 parts of cerium chloride, 2.5 parts of molybdenum trisulfate, 2 parts of boric acid .5 parts of phosphatase 11,1.5 parts of citric acid, hydrogen peroxide
3.5 parts, 130 parts of water.
The preparation method of above-mentioned tin plate passivating solution, includes the following steps：
S1, by cerium chloride, molybdenum trisulfate, sodium hypophosphite, 1,3,4- thiadiazoles -2- amino-alkyl Alendronate is soluble in water, stirs
Mix uniformly obtained prefabricated solution A；
S2, add in prefabricated solution A after phosphoric 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 tin plate passivating solution.
Examples of implementation 4
A kind of tin plate passivating solution, its raw material include by weight：19 parts of sodium hypophosphite, 1,3,4- thiadiazoles -2- ammonia
Base -19 parts of alkyl Alendronate, 8 parts of cerium chloride, 2.5 parts of molybdenum trisulfate, 3.5 parts of boric acid, 2.5 parts of phosphoric acid, 2.5 parts of citric acid, dioxygen
4.5 parts of water, 140 parts of water.
The preparation method of above-mentioned tin plate passivating solution, includes the following steps：
S1, by cerium chloride, molybdenum trisulfate, sodium hypophosphite, 1,3,4- thiadiazoles -2- amino-alkyl Alendronate is soluble in water, stirs
Mix uniformly obtained prefabricated solution A；
S2, add in prefabricated solution A after phosphoric 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 tin plate 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 tin plate passivating solution, it is characterised in that its raw material includes by weight：10-25 parts of sodium hypophosphite, 1,3,4-
Thiadiazoles -2- amino -10-25 parts of alkyl Alendronate, 5-10 parts of cerium chloride, 2-4 parts of molybdenum trisulfate, 1-5 parts of boric acid, -3 parts of phosphatase 11,
1-3 parts of citric acid, 3-6 parts of hydrogen peroxide, 90-180 parts of water.
2. tin plate passivating solution according to claim 1, it is characterised in that its raw material includes by weight：Sodium hypophosphite
15-20 parts, 1,3,4- thiadiazoles -2- amino -15-20 parts of alkyl Alendronate, 6-8 parts of cerium chloride, 2.5-3.5 parts of molybdenum trisulfate, boron
It is 2-4 parts sour .5-2.5 parts of phosphatase 11,1.5-2.5 parts of citric acid, 3.5-5 parts of hydrogen peroxide, 120-150 parts of water.
3. a kind of preparation method of tin plate passivating solution as claimed in claim 1 or 2, it is characterised in that include the following steps：
S1, by cerium chloride, molybdenum trisulfate, sodium hypophosphite, 1,3,4- thiadiazoles -2- amino-alkyl Alendronate is soluble in water, and stirring is equal
Even obtained prefabricated solution A；
S2, after phosphoric 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 tin plate passivating solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711495015.XA CN108004531A (en) | 2017-12-31 | 2017-12-31 | A kind of tin plate passivating solution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711495015.XA CN108004531A (en) | 2017-12-31 | 2017-12-31 | A kind of tin plate passivating solution |
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| Publication Number | Publication Date |
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| CN108004531A true CN108004531A (en) | 2018-05-08 |
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| CN201711495015.XA Withdrawn CN108004531A (en) | 2017-12-31 | 2017-12-31 | A kind of tin plate passivating solution |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104073854A (en) * | 2014-06-30 | 2014-10-01 | 沈阳理工大学 | Rare earth/molybdate passivation treatment fluid for tin coating |
-
2017
- 2017-12-31 CN CN201711495015.XA patent/CN108004531A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104073854A (en) * | 2014-06-30 | 2014-10-01 | 沈阳理工大学 | Rare earth/molybdate passivation treatment fluid for tin coating |
Non-Patent Citations (1)
| Title |
|---|
| 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1辑》 * |
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Application publication date: 20180508 |
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