CN104328415A - Preparation method for aluminium alloy radiator passivation solution before lacquering - Google Patents
Preparation method for aluminium alloy radiator passivation solution before lacquering Download PDFInfo
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- CN104328415A CN104328415A CN201310308772.7A CN201310308772A CN104328415A CN 104328415 A CN104328415 A CN 104328415A CN 201310308772 A CN201310308772 A CN 201310308772A CN 104328415 A CN104328415 A CN 104328415A
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- China
- Prior art keywords
- aluminium alloy
- passivating solution
- preparation
- alloy radiator
- solution before
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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
- C23C22/40—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 molybdates, tungstates or vanadates
- C23C22/44—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 molybdates, tungstates or vanadates containing also fluorides or complex fluorides
Abstract
The invention discloses a preparation method for an aluminium alloy radiator passivating solution before lacquering. The passivating solution comprises 6-8 g/L of sodium molybdate, 4-6 g/L of potassium tetrafluoroborate, 3-5 g/L of magnesium titanate, 8-10 g/L of sodium zirconate, 16-18 g/L of aqueous polyurethane, 12-14g/L of boric acid, 4-6 g/L of acetic acid, 1-2g/L of thiourea and the balance water. The preparation method comprises: weighing all raw materials according to the above proportions, putting in a reaction kettle, heating to 35-45 DEG C, then starting a stirrer, controlling the rotation speed to be 160-180 r/min, stirring for 15-25 min, then cooling to room temperature and putting for 10-12 h.
Description
Technical field
The present invention relates to technical field of surface, particularly relate to a kind of aluminium alloy radiator spray paint before the compound method of passivating solution.
Background technology
Along with the raising of people's living standard, people more and more pursue the practicality of decoration design for residence and attractive in appearance, wherein the radiator appearance of aluminium alloy can spray the paint of shades of colour with other colour match with house ornamentation, and due to the good heat conductivity of aluminium, radiating efficiency is high, therefore, the colorful radiator that aluminium alloy is prepared from more and more is subject to the favor of people.
Will carry out various pre-treatment before aluminium alloy sprays paint, wherein, chemical conversion film is a kind of technique means the most frequently used in aluminium surface treatment.Chemical conversion film has certain erosion resistance and good physical adsorption ability, greatly can improve the bonding force of aluminium matrix and coating, and strengthen the resistance to corrosion of aluminum products, its processing speed soon, does not consume electric energy, required equipment is simple, processing cost is low.At present, the method for comparatively common chemical conversion film has three kinds:
1, chromaking, this method was invented in 1945 by american chemical paint company, also referred to as A Luoding oxidation style, after promoted the use of by ICI Imperial Chemical Industries of Britain, claim A Luo Crow nurse method.Its main component is: take chromic anhydride as oxygenant and membrane-forming agent, in addition the additive such as fluorochemical, and film forming is fine and close chromic salt, has good erosion resistance.But the conversion film that this method is formed, containing sexavalent chrome, can cause serious harm to human body, also can cause severe contamination to environment.
2, phosphorus chromaking, also known as green chromaking, phosphorus chromaking was just brought into use in aluminium surface treatment as far back as 1945, so far, still in use.Phosphorus chromaking film comes from trivalent chromium, and its main component is: superphosphate, acidity or basic chromium hydrochlorate, complexing agent, fluorochemical.The difference of this method and chromaking method is that phosphoric acid salt instead of chromic salt, reduces pollution, and in technique, simplified the operation of acid deoxidation effect.But in this method, phosphorus chromaking film erosion resistance is not so good as chromaking film, so make certain restriction, and, also do not depart from chromic pollution completely.
3, colourless Chrome-free chemical conversion film method is filled a prescription based on fluorine zirconic acid, nitric acid, boric acid, a series of conversion embrane methods in succession developed.The surface conversion coating of the aluminum or aluminum alloy in this way after process, not containing chromium, can not work the mischief, but film forming erosion resistance is poor to human body and environment.
Summary of the invention
The object of the invention is to propose a kind of aluminium alloy radiator spray paint before the compound method of passivating solution, the passivating solution of the method preparation, not containing chromium, can not work the mischief, and erosion resistance is strong to human body and environment.
For reaching this object, the present invention by the following technical solutions:
A compound method for passivating solution before aluminium alloy radiator sprays paint, consisting of of this passivating solution: Sodium orthomolybdate 6-8g/L, potassium fluoborate 4-6g/L, magnesium titanate 3-5g/L, sodium zirconate 8-10g/L, aqueous polyurethane 16-18g/L, boric acid 12-14g/L, acetic acid 4-6g/L, thiocarbamide 1-2g/L, surplus is water; Described compound method is: take various raw material by said ratio, puts it in reactor, is heated to 35-45 DEG C, then start agitator, and rotating speed is 160-180 rev/min, stirs 15-25 minute, is then cooled to room temperature, then places 10-12 hour.
Beneficial effect of the present invention is:
The present invention is by the adjustment to passivating solution component, make passivation speed fast, therefore, the mode of spraying can be adopted to carry out Rapid deactivation to aluminium alloy radiator, and without the need to washing after passivation, dry, save operation, raise the efficiency, reduce costs, be therefore suitable for Passivation Treatment before the spraying paint of aluminium alloy radiator.Further, passivating solution Chrome-free of the present invention, safety and environmental protection.In addition, use it for when Passivation Treatment is carried out to aluminium alloy radiator, not only can improve the erosion resistance of material itself, and the sticking power of material and its coating can be strengthened.
Embodiment
Embodiment one
A compound method for passivating solution before aluminium alloy radiator sprays paint, consisting of of this passivating solution: Sodium orthomolybdate 6g/L, potassium fluoborate 6g/L, magnesium titanate 3g/L, sodium zirconate 10g/L, aqueous polyurethane 16g/L, boric acid 14g/L, acetic acid 4g/L, thiocarbamide 2g/L, surplus is water; Described compound method is: take various raw material by said ratio, puts it in reactor, is heated to 35 DEG C, then starts agitator, and rotating speed is 180 revs/min, stirs 15 minutes, is then cooled to room temperature, then places 12 hours.
Embodiment two
A compound method for passivating solution before aluminium alloy radiator sprays paint, consisting of of this passivating solution: Sodium orthomolybdate 8g/L, potassium fluoborate 4g/L, magnesium titanate 5g/L, sodium zirconate 8g/L, aqueous polyurethane 18g/L, boric acid 12g/L, acetic acid 6g/L, thiocarbamide 1g/L, surplus is water; Described compound method is: take various raw material by said ratio, puts it in reactor, is heated to 45 DEG C, then starts agitator, and rotating speed is 160 revs/min, stirs 25 minutes, is then cooled to room temperature, then places 10 hours.
Embodiment three
A compound method for passivating solution before aluminium alloy radiator sprays paint, consisting of of this passivating solution: Sodium orthomolybdate 7g/L, potassium fluoborate 5g/L, magnesium titanate 4g/L, sodium zirconate 9g/L, aqueous polyurethane 17g/L, boric acid 13g/L, acetic acid 5g/L, thiocarbamide 1.5g/L, surplus is water; Described compound method is: take various raw material by said ratio, puts it in reactor, is heated to 40 DEG C, then starts agitator, and rotating speed is 170 revs/min, stirs 20 minutes, is then cooled to room temperature, then places 11 hours.
Claims (1)
1. an aluminium alloy radiator spray paint before the compound method of passivating solution, it is characterized in that, consisting of of this passivating solution: Sodium orthomolybdate 6-8g/L, potassium fluoborate 4-6g/L, magnesium titanate 3-5g/L, sodium zirconate 8-10g/L, aqueous polyurethane 16-18g/L, boric acid 12-14g/L, acetic acid 4-6g/L, thiocarbamide 1-2g/L, surplus is water; Described compound method is: take various raw material by said ratio, puts it in reactor, is heated to 35-45 DEG C, then start agitator, and rotating speed is 160-180 rev/min, stirs 15-25 minute, is then cooled to room temperature, then places 10-12 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310308772.7A CN104328415A (en) | 2013-07-22 | 2013-07-22 | Preparation method for aluminium alloy radiator passivation solution before lacquering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310308772.7A CN104328415A (en) | 2013-07-22 | 2013-07-22 | Preparation method for aluminium alloy radiator passivation solution before lacquering |
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| Publication Number | Publication Date |
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| CN104328415A true CN104328415A (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310308772.7A Pending CN104328415A (en) | 2013-07-22 | 2013-07-22 | Preparation method for aluminium alloy radiator passivation solution before lacquering |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106928836A (en) * | 2017-03-24 | 2017-07-07 | 安徽林驰电子有限公司 | A kind of aluminium alloy preparation method of boration aqueous polyurethane passivating solution |
| CN107574431A (en) * | 2017-08-25 | 2018-01-12 | 浙江纳瓦斯工贸有限公司 | A kind of aluminium radiator raw material and preparation method |
-
2013
- 2013-07-22 CN CN201310308772.7A patent/CN104328415A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106928836A (en) * | 2017-03-24 | 2017-07-07 | 安徽林驰电子有限公司 | A kind of aluminium alloy preparation method of boration aqueous polyurethane passivating solution |
| CN107574431A (en) * | 2017-08-25 | 2018-01-12 | 浙江纳瓦斯工贸有限公司 | A kind of aluminium radiator raw material and preparation method |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20150204 |