CN103114281A - Chromium-free passivation solution - Google Patents
Chromium-free passivation solution Download PDFInfo
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- CN103114281A CN103114281A CN201210478618XA CN201210478618A CN103114281A CN 103114281 A CN103114281 A CN 103114281A CN 201210478618X A CN201210478618X A CN 201210478618XA CN 201210478618 A CN201210478618 A CN 201210478618A CN 103114281 A CN103114281 A CN 103114281A
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Abstract
The invention discloses a chromium-free passivation solution. The chromium-free passivation solution comprises the following raw materials in percentage by weight: 20-70% of trisodium phosphate, 1-4% of cobalt sulfate, 1-3% of phosphoric acid, 0.5-0.7% of boracic acid, 1-3% of hydrogen peroxide and 80-200% of water. The passivation solution does not contain chromium and is environment-friendly, and a tin plate passivated by the passivation solution has higher corrosion resistance and oxidization resistance.
Description
Technical field
The present invention relates to a kind of passivating solution that does not contain chromium.
Background technology
Zinc-plated after plating, soft heat, for corrosion resistance nature, antioxidant property and the anti-sulphide staining performance that improves tin plate, to carry out Passivation Treatment to tin plate, in prior art, be to adopt the chromic salt of 6 valency chromium to carry out passivation to the passivation of tin plate, because 6 valency chromium are a kind of highly toxic substances, human body and environment there is very large harm, particularly the purposes of tin plate is generally the wrapping material as food, and is very harmful, demands urgently improving.
Summary of the invention
Problem for prior art exists the object of the invention is to propose a kind of passivating solution that does not contain chromium, does not contain chromium, and is environmentally friendly, and has higher corrosion resistance nature and oxidation resistent susceptibility by the tin plate of its passivation.
For achieving the above object, the present invention adopts following technical scheme:
A kind of passivating solution that does not contain chromium comprises according to the raw material of weight percent meter proportioning:
Tertiary sodium phosphate (20-70), rose vitriol (1-4), phosphoric acid (1-3), boric acid (0.5-0.7), hydrogen peroxide (1-3), water (80-200).
Raw material according to the weight percent meter proportioning comprises:
Tertiary sodium phosphate (40-70), rose vitriol (3-4), phosphoric acid (1-2), boric acid (0.5-0.6), hydrogen peroxide (1-2), water (100-150).
The described passivating solution that does not contain chromium obtains by following steps:
The mixture of getting tertiary sodium phosphate crystal and rose vitriol crystal is poured into water, and stirs, and forms solution A;
Get a certain amount of phosphoric acid, slowly add in described solution A, stir while adding, form solution B;
A certain amount of boric acid is poured in certain water gaging, be stirred well to boric acid and dissolve fully, form solution C, then solution B is poured in solution C, stir while pour into, form solution D;
Get a certain amount of hydrogen peroxide, join in solution D, stir while adding, form solution E;
The PH to 1.5-2.5 of regulator solution E.
Based on disclosing of above technical scheme, the present invention possesses following beneficial effect:
The passivating solution that the present invention proposes adopts tertiary sodium phosphate, rose vitriol to replace traditional chromic salts as main film forming substance, can with Several Thiourea Derivatives on Zinc Plate Surface generation chemical reaction, form the passive film with provide protection; Replace normal sulfuric acid or the nitric acid that uses of traditional passivating solution with phosphoric acid, as the solvent of main film forming substance with film formation reaction is needed hydrionicly mainly provides former, simultaneously, can also with zinc coating generation phosphating reaction, thereby improve the corrosion resistance nature of passive film, add appropriate boric acid in passivating solution, can play certain shock absorption to pH value, thereby improve the stability of passivating solution; Utilize the oxidisability of hydrogen peroxide, accelerate film process, improve passivation efficiency.
Embodiment
Further illustrate technical scheme of the present invention below by embodiment:
Embodiment 1
A kind of passivating solution that does not contain chromium comprises according to the raw material of weight percent meter proportioning:
Tertiary sodium phosphate (20-70), rose vitriol (1-4), phosphoric acid (1-3), boric acid (0.5-0.7), hydrogen peroxide (1-3), water (80-200).
Embodiment 2
A kind of passivating solution that does not contain chromium comprises according to the raw material of weight percent meter proportioning:
Tertiary sodium phosphate (40-70), rose vitriol (3-4), phosphoric acid (1-2), boric acid (0.5-0.6), hydrogen peroxide (1-2), water (100-150).
Embodiment 3
The manufacture method that does not contain the passivating solution of chromium, the described passivating solution that does not contain chromium obtains by following steps:
S1, the mixture of getting tertiary sodium phosphate crystal and rose vitriol crystal are poured into water, and stir, and form solution A;
S2, get a certain amount of phosphoric acid, slowly add in described solution A, stir while adding, form solution B;
S3, a certain amount of boric acid is poured in certain water gaging, be stirred well to boric acid and dissolve fully, form solution C, then solution B is poured in solution C, stir while pour into, form solution D;
S4, get a certain amount of hydrogen peroxide, join in solution D, stir while adding, form solution E;
The PH to 1.5-2.5 of S5, regulator solution E.
Passivating solution adopts tertiary sodium phosphate, rose vitriol to replace traditional chromic salts as main film forming substance, can with Several Thiourea Derivatives on Zinc Plate Surface generation chemical reaction, form the passive film with provide protection; Replace normal sulfuric acid or the nitric acid that uses of traditional passivating solution with phosphoric acid, as the solvent of main film forming substance with film formation reaction is needed hydrionicly mainly provides former, simultaneously, can also with zinc coating generation phosphating reaction, thereby improve the corrosion resistance nature of passive film, add appropriate boric acid in passivating solution, can play certain shock absorption to pH value, thereby improve the stability of passivating solution; Utilize the oxidisability of hydrogen peroxide, accelerate film process, improve passivation efficiency.
The above; only be the better embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (3)
1. a passivating solution that does not contain chromium, is characterized in that, comprises according to the raw material of weight percent meter proportioning:
Tertiary sodium phosphate (20-70), rose vitriol (1-4), phosphoric acid (1-3), boric acid (0.5-0.7), hydrogen peroxide (1-3), water (80-200).
2. a kind of passivating solution that does not contain chromium as claimed in claim 1, is characterized in that, comprises according to the raw material of weight percent meter proportioning:
Tertiary sodium phosphate (40-70), rose vitriol (3-4), phosphoric acid (1-2), boric acid (0.5-0.6), hydrogen peroxide (1-2), water (100-150).
3. the manufacture method that does not contain the passivating solution of chromium as claimed in claim 1, is characterized in that, the described passivating solution that does not contain chromium obtains by following steps:
The mixture of getting tertiary sodium phosphate crystal and rose vitriol crystal is poured into water, and stirs, and forms solution A;
Get a certain amount of phosphoric acid, slowly add in described solution A, stir while adding, form solution B;
A certain amount of boric acid is poured in certain water gaging, be stirred well to boric acid and dissolve fully, form solution C, then solution B is poured in solution C, stir while pour into, form solution D;
Get a certain amount of hydrogen peroxide, join in solution D, stir while adding, form solution E;
The PH to 1.5-2.5 of regulator solution E.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210478618.XA CN103114281B (en) | 2012-11-22 | 2012-11-22 | A kind of not containing the passivating solution of chromium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210478618.XA CN103114281B (en) | 2012-11-22 | 2012-11-22 | A kind of not containing the passivating solution of chromium |
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| Publication Number | Publication Date |
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| CN103114281A true CN103114281A (en) | 2013-05-22 |
| CN103114281B CN103114281B (en) | 2016-01-20 |
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| CN201210478618.XA Active CN103114281B (en) | 2012-11-22 | 2012-11-22 | A kind of not containing the passivating solution of chromium |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404497A (en) * | 2014-12-11 | 2015-03-11 | 天长市飞龙金属制品有限公司 | Passivant for metal coating |
| CN107326350A (en) * | 2017-06-19 | 2017-11-07 | 苏州莱特复合材料有限公司 | A kind of preparation method of household electrical appliance metal powder parts passivator |
| CN107488845A (en) * | 2016-06-11 | 2017-12-19 | 上海梅山钢铁股份有限公司 | A kind of chromium-free passivation liquid and its application method for tin plate |
| CN107488844A (en) * | 2016-06-11 | 2017-12-19 | 上海梅山钢铁股份有限公司 | A kind of fluoride-free chromium-free passivating solution and its application method for tin plate |
| CN108004533A (en) * | 2017-12-31 | 2018-05-08 | 天长市飞龙金属制品有限公司 | A kind of galvanized sheet passivating solution |
| CN108004531A (en) * | 2017-12-31 | 2018-05-08 | 天长市飞龙金属制品有限公司 | A kind of tin plate passivating solution |
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| JP2003268562A (en) * | 2002-03-14 | 2003-09-25 | Dipsol Chem Co Ltd | Treatment solution for forming black, hexavalent chromium-free chemical conversion coating on galvanizing and galvannealing, and method for forming black, hexavalent chromium-free chemical conversion coating on galvanizing and galvannealing |
| CN101104932A (en) * | 2007-08-09 | 2008-01-16 | 武汉钢铁(集团)公司 | Tin plate sheet chromium-free deactivation liquid |
| JP2010031332A (en) * | 2008-07-30 | 2010-02-12 | Dipsol Chem Co Ltd | Aqueous chemical conversion treatment solution for forming chromium free chemical conversion film on zinc or zinc alloy plating, and chromium free conversion film obtained thereby |
| JP2011052255A (en) * | 2009-08-31 | 2011-03-17 | Jfe Steel Corp | Highly corrosion resistant surface-treated steel sheet |
| CN102002697A (en) * | 2010-11-01 | 2011-04-06 | 云南滇科涂镀层材料有限公司 | Environmentally friendly chromium-free passivation solution for galvanization and preparation method thereof |
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2012
- 2012-11-22 CN CN201210478618.XA patent/CN103114281B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003268562A (en) * | 2002-03-14 | 2003-09-25 | Dipsol Chem Co Ltd | Treatment solution for forming black, hexavalent chromium-free chemical conversion coating on galvanizing and galvannealing, and method for forming black, hexavalent chromium-free chemical conversion coating on galvanizing and galvannealing |
| CN101104932A (en) * | 2007-08-09 | 2008-01-16 | 武汉钢铁(集团)公司 | Tin plate sheet chromium-free deactivation liquid |
| JP2010031332A (en) * | 2008-07-30 | 2010-02-12 | Dipsol Chem Co Ltd | Aqueous chemical conversion treatment solution for forming chromium free chemical conversion film on zinc or zinc alloy plating, and chromium free conversion film obtained thereby |
| JP2011052255A (en) * | 2009-08-31 | 2011-03-17 | Jfe Steel Corp | Highly corrosion resistant surface-treated steel sheet |
| CN102002697A (en) * | 2010-11-01 | 2011-04-06 | 云南滇科涂镀层材料有限公司 | Environmentally friendly chromium-free passivation solution for galvanization and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404497A (en) * | 2014-12-11 | 2015-03-11 | 天长市飞龙金属制品有限公司 | Passivant for metal coating |
| CN107488845A (en) * | 2016-06-11 | 2017-12-19 | 上海梅山钢铁股份有限公司 | A kind of chromium-free passivation liquid and its application method for tin plate |
| CN107488844A (en) * | 2016-06-11 | 2017-12-19 | 上海梅山钢铁股份有限公司 | A kind of fluoride-free chromium-free passivating solution and its application method for tin plate |
| CN107488845B (en) * | 2016-06-11 | 2019-11-19 | 上海梅山钢铁股份有限公司 | A kind of chromium-free passivation liquid and its application method for tin plate |
| CN107488844B (en) * | 2016-06-11 | 2020-01-21 | 上海梅山钢铁股份有限公司 | Fluoride-free chromium-free passivation solution for tin-plated steel plate and use method thereof |
| CN107326350A (en) * | 2017-06-19 | 2017-11-07 | 苏州莱特复合材料有限公司 | A kind of preparation method of household electrical appliance metal powder parts passivator |
| CN108004533A (en) * | 2017-12-31 | 2018-05-08 | 天长市飞龙金属制品有限公司 | A kind of galvanized sheet passivating solution |
| CN108004531A (en) * | 2017-12-31 | 2018-05-08 | 天长市飞龙金属制品有限公司 | A kind of tin plate passivating solution |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103114281B (en) | 2016-01-20 |
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