CN104073796A - Metal plating passivation solution and preparation method thereof - Google Patents

Metal plating passivation solution and preparation method thereof Download PDF

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Publication number
CN104073796A
CN104073796A CN201410300761.9A CN201410300761A CN104073796A CN 104073796 A CN104073796 A CN 104073796A CN 201410300761 A CN201410300761 A CN 201410300761A CN 104073796 A CN104073796 A CN 104073796A
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China
Prior art keywords
passivating solution
metal plating
tartrate
solution according
molybdate
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CN201410300761.9A
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Chinese (zh)
Inventor
王梅凤
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JURONGSHI BOYUAN ELECTRONICS CO Ltd
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JURONGSHI BOYUAN ELECTRONICS CO Ltd
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Priority to CN201410300761.9A priority Critical patent/CN104073796A/en
Publication of CN104073796A publication Critical patent/CN104073796A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a metal plating passivation solution. Every liter of passivation solution comprises 3-4g of tartrate, 1-1.5g of sodium fluoride, 5-7g of citrate, 6-10g of silicate, 4-6g of molybdate, 1-3mL of phytic acid, 3-4mL of nitric acid and 5-8mL of oxydol. The pH value is 3-5. The passivation solution is applicable to passivating treatment of various metals; the passivation solution can form a passivating film layer on the metal surface, and thus, has favorable corrosion resistance; and the passivation solution is free of chromium, phosphorus and other environment-polluting substances, thus, is environment-friendly and can implement clean production.

Description

A kind of Metal plating passivating solution and compound method thereof
Technical field
The invention belongs to field of electroplating, relate in particular to a kind of Metal plating passivating solution and compound method thereof.
Background technology
Passivating solution is exactly that the metal sheet that need to carry out parcel plating is being carried out to Passivation Treatment before plating.Current passivating solution is of a great variety, but be all that specific aim is very strong, such as while being used in electro-galvanizing and Zn-Fe alloy electroplating, need to use specific passivating solution, could improve like this solidity to corrosion of plating zinc and zinc-iron alloy.Therefore seek one applied widely, the passivating solution of corrosion resistance and good is the development trend of current industry.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of environmental protection, Metal plating passivating solution and compound method thereof applied widely.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of Metal plating passivating solution, every liter of passivating solution comprises following component: tartrate 3-4g, Sodium Fluoride 1-1.5g, Citrate trianion 5-7g, silicate 6-10g, molybdate 4-6g, phytic acid 1-3mL, nitric acid 3-4 mL, hydrogen peroxide 5-8 mL, pH value is 3-5.
Further, described tartrate is any in soluble tartrate or sodium tartrate.
Further, described Citrate trianion is any in Tripotassium Citrate or Trisodium Citrate.
Further, described silicate is any in potassium silicate or water glass.
Further, described molybdate is potassium molybdate, Sodium orthomolybdate, any in ammonium molybdate.
The compound method of above-mentioned Metal plating passivating solution, the method comprises the steps:
(1) get the raw materials ready according to the component of described passivating solution;
(2) under 20-30 DEG C of condition, all components is mixed, add water to whole dissolvings, constant volume; Obtain mixed solution;
(3) regulate pH of mixed value to 3-5; Obtain described Metal plating passivating solution.
In step (2), first water dissolves respectively tartrate, Sodium Fluoride, and Citrate trianion, silicate, molybdate dissolves rear mixing completely, then adds hydrogen peroxide to stir, then adds successively phytic acid and nitric acid, mixes.
In step (3), with ammoniacal liquor or nitre acid for adjusting pH value.The volumetric concentration of described ammoniacal liquor is 30%.
beneficial effect:compared with prior art, the invention has the advantages that: the Passivation Treatment that can be suitable for various metals; After employing the present invention, can form one deck passive film in metallic surface and make it have good Corrosion Protection, and because adopted component is containing the material of the contaminate environment such as chromium, phosphorus, therefore environmental protection, can realize cleaner production.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
Embodiment 1: a kind of Metal plating passivating solution, every liter of passivating solution comprises following component: soluble tartrate 3g, Sodium Fluoride 1g, Tripotassium Citrate 5g, potassium silicate 6g, potassium molybdate 4g, phytic acid 1mL, nitric acid 3 mL, hydrogen peroxide 5 mL, pH value is 3.
The compound method of above-mentioned Metal plating passivating solution, the method comprises the steps:
(1) get the raw materials ready according to the component of described passivating solution;
(2) under 20-30 DEG C of condition, first water dissolves respectively tartrate, Sodium Fluoride, and Citrate trianion, silicate, molybdate dissolves rear mixing completely, then adds hydrogen peroxide to stir, then adds successively phytic acid and nitric acid, mixes, and adds water and is settled to 1L; Obtain mixed solution;
(3) regulate pH of mixed value to 3 with ammoniacal liquor or nitric acid; Obtain described Metal plating passivating solution.Wherein the volumetric concentration of ammoniacal liquor is 30%.The volumetric concentration of nitric acid is 15%.
In passivating process, the temperature of this passivating solution is 35 DEG C, and passivation time is 50s.Metal sheet after passivation is through neutral salt spray test, goes out the white rust time to exceed 80h.
Embodiment 2: a kind of Metal plating passivating solution, every liter of passivating solution comprises following component: sodium tartrate 4g, Sodium Fluoride 1.5g, Trisodium Citrate 7g, water glass 10g, Sodium orthomolybdate 6g, phytic acid 3mL, nitric acid 4 mL, hydrogen peroxide 8 mL, pH value is 5.
The compound method of above-mentioned Metal plating passivating solution, the method comprises the steps:
(1) get the raw materials ready according to the component of described passivating solution;
(2) under 20-30 DEG C of condition, first water dissolves respectively tartrate, Sodium Fluoride, and Citrate trianion, silicate, molybdate dissolves rear mixing completely, then adds hydrogen peroxide to stir, then adds successively phytic acid and nitric acid, mixes, and adds water and is settled to 1L; Obtain mixed solution;
(3) regulate pH of mixed value to 5 with ammoniacal liquor or nitric acid; Obtain described Metal plating passivating solution.Wherein the volumetric concentration of ammoniacal liquor is 30%.The volumetric concentration of nitric acid is 15%.
In passivating process, the temperature of this passivating solution is 45 DEG C, and passivation time is 30s.Metal sheet after passivation is through neutral salt spray test, goes out the white rust time to exceed 90h.
Embodiment 3: a kind of Metal plating passivating solution, every liter of passivating solution comprises following component: soluble tartrate 3.5g, Sodium Fluoride 1.2g, Trisodium Citrate 6g, potassium silicate 8g, ammonium molybdate 5g, phytic acid 2mL, nitric acid 3 mL, hydrogen peroxide 7 mL, pH value is 4.
The compound method of above-mentioned Metal plating passivating solution, the method comprises the steps:
(1) get the raw materials ready according to the component of described passivating solution;
(2) under 20-30 DEG C of condition, first water dissolves respectively tartrate, Sodium Fluoride, and Citrate trianion, silicate, molybdate dissolves rear mixing completely, then adds hydrogen peroxide to stir, then adds successively phytic acid and nitric acid, mixes, and adds water and is settled to 1L; Obtain mixed solution;
(3) regulate pH of mixed value to 4 with ammoniacal liquor or nitric acid; Obtain described Metal plating passivating solution.Wherein the volumetric concentration of ammoniacal liquor is 30%.The volumetric concentration of nitric acid is 15%.
In passivating process, the temperature of this passivating solution is 40 DEG C, and passivation time is 40s.Metal sheet after passivation is through neutral salt spray test, goes out the white rust time to exceed 80h.
The present invention is illustrated and should be appreciated that above-described embodiment does not limit the present invention in any form according to above-described embodiment, and all employings are equal to replaces or the technical scheme that obtains of equivalent transformation mode, within all dropping on protection scope of the present invention.

Claims (9)

1. a Metal plating passivating solution, is characterized in that, every liter of passivating solution comprises following component: tartrate 3-4g, Sodium Fluoride 1-1.5g, Citrate trianion 5-7g, silicate 6-10g, molybdate 4-6g, phytic acid 1-3mL, nitric acid 3-4 mL, hydrogen peroxide 5-8 mL, pH value is 3-5.
2. Metal plating passivating solution according to claim 1, is characterized in that, described tartrate is any in soluble tartrate or sodium tartrate.
3. Metal plating passivating solution according to claim 1, is characterized in that, described Citrate trianion is any in Tripotassium Citrate or Trisodium Citrate.
4. Metal plating passivating solution according to claim 1, is characterized in that, described silicate is any in potassium silicate or water glass.
5. Metal plating passivating solution according to claim 1, is characterized in that, described molybdate is potassium molybdate, Sodium orthomolybdate, any in ammonium molybdate.
6. the compound method of Metal plating passivating solution according to claim 1, is characterized in that, the method comprises the steps:
(1) get the raw materials ready according to the component of described passivating solution;
(2) under 20-30 DEG C of condition, all components is mixed, add water to whole dissolvings, constant volume; Obtain mixed solution;
(3) regulate pH of mixed value to 3-5; Obtain described Metal plating passivating solution.
7. the compound method of Metal plating passivating solution according to claim 6, it is characterized in that, in step (2), first water dissolves respectively tartrate, Sodium Fluoride, Citrate trianion, silicate, molybdate dissolves rear mixing completely, then adds hydrogen peroxide to stir, add successively again phytic acid and nitric acid, mix.
8. the compound method of Metal plating passivating solution according to claim 6, is characterized in that, in step (3), with ammoniacal liquor or nitre acid for adjusting pH value.
9. the compound method of Metal plating passivating solution according to claim 6, is characterized in that, the volumetric concentration of described ammoniacal liquor is 30%.
CN201410300761.9A 2014-06-30 2014-06-30 Metal plating passivation solution and preparation method thereof Pending CN104073796A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104357820A (en) * 2014-11-14 2015-02-18 无锡伊佩克科技有限公司 Chromium-free passivator for nickel-plated sheets and preparation method thereof
CN105862020A (en) * 2016-05-31 2016-08-17 无锡伊佩克科技有限公司 Steel surface fluoroferrite conversion plating solution and preparation method thereof
CN106319505A (en) * 2016-08-31 2017-01-11 汪珍平 Stainless iron passivant as well as preparation method and stainless iron passivation method thereof
CN106435555A (en) * 2016-08-31 2017-02-22 汪珍平 Stainless steel passivant and preparation method and stainless steel passivating method thereof
WO2019000448A1 (en) * 2017-06-30 2019-01-03 深圳市恒兆智科技有限公司 Stainless steel passivator and method for passivating surface of stainless steel part
CN110983318A (en) * 2019-12-17 2020-04-10 昆明理工大学 Organic-inorganic environment-friendly composite color passivation solution and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101319322A (en) * 2008-07-22 2008-12-10 夏畅斌 Environment-friendly type passivation liquid for boiler and preparation method thereof
CN101736337A (en) * 2009-12-28 2010-06-16 哈尔滨工业大学 Method for preparing chromium-free passivation solution, and method for passivating electrogalvanizing or zinc alloy layer by using same
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
CN102337532A (en) * 2011-07-11 2012-02-01 武汉迪赛高科技研究发展有限公司 Chromium-free passivation liquid applied to surface of zinc-coated layer
CN103103542A (en) * 2013-02-22 2013-05-15 郭仰南 Environment-friendly wiping rust remover

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101319322A (en) * 2008-07-22 2008-12-10 夏畅斌 Environment-friendly type passivation liquid for boiler and preparation method thereof
CN101736337A (en) * 2009-12-28 2010-06-16 哈尔滨工业大学 Method for preparing chromium-free passivation solution, and method for passivating electrogalvanizing or zinc alloy layer by using same
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
CN102337532A (en) * 2011-07-11 2012-02-01 武汉迪赛高科技研究发展有限公司 Chromium-free passivation liquid applied to surface of zinc-coated layer
CN103103542A (en) * 2013-02-22 2013-05-15 郭仰南 Environment-friendly wiping rust remover

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104357820A (en) * 2014-11-14 2015-02-18 无锡伊佩克科技有限公司 Chromium-free passivator for nickel-plated sheets and preparation method thereof
CN105862020A (en) * 2016-05-31 2016-08-17 无锡伊佩克科技有限公司 Steel surface fluoroferrite conversion plating solution and preparation method thereof
CN106319505A (en) * 2016-08-31 2017-01-11 汪珍平 Stainless iron passivant as well as preparation method and stainless iron passivation method thereof
CN106435555A (en) * 2016-08-31 2017-02-22 汪珍平 Stainless steel passivant and preparation method and stainless steel passivating method thereof
WO2019000448A1 (en) * 2017-06-30 2019-01-03 深圳市恒兆智科技有限公司 Stainless steel passivator and method for passivating surface of stainless steel part
CN110983318A (en) * 2019-12-17 2020-04-10 昆明理工大学 Organic-inorganic environment-friendly composite color passivation solution and preparation method thereof

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