CN108728837A - Non-phosphate film agent, non-phosphate film processing method and products thereof - Google Patents
Non-phosphate film agent, non-phosphate film processing method and products thereof Download PDFInfo
- Publication number
- CN108728837A CN108728837A CN201710261592.6A CN201710261592A CN108728837A CN 108728837 A CN108728837 A CN 108728837A CN 201710261592 A CN201710261592 A CN 201710261592A CN 108728837 A CN108728837 A CN 108728837A
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- China
- Prior art keywords
- phosphate film
- agent
- magnesium alloy
- film agent
- magnesium
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Classifications
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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
-
- 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
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- Chemical & Material Sciences (AREA)
- 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)
Abstract
The invention belongs to field of metal surface treatment more particularly to a kind of non-phosphate film agent, non-phosphate film processing method and products thereof, for carrying out epithelium processing to Mg alloy surface.With densimeter, which includes:Lithium zirconium 50g/L-150g/L;Potassium fluorozirconate 20g/L-30g/L;Citric acid 20g/L-30g/L;65% concentrated nitric acid 10g/L-20g/L;Solvent is deionized water.Non-phosphate film processing method is that, with densimeter, 0.5g/L-1g/L ammonium metavanadates are added in 80g/L-120g/L non-phosphate film agents, at a temperature of 40 DEG C -45 DEG C, rinses product surface 30s-60s.The phosphoric acid salt that the non-phosphate film agent of the present invention not only solves in previous formula can lead to the problem of water quality pollution, and the magnesium-alloy material handled with the non-phosphate film agent, its neutral salt spray test can reach more than for 24 hours, and paint film adhesion can reach 0 grade.
Description
【Technical field】
The invention belongs to field of metal surface treatment more particularly to a kind of non-phosphate film agent, non-phosphate film processing method and
Its product.
【Background technology】
Magnesium alloy is most light one of engineering metal material, it has good specific strength, specific stiffness, recyclable and good
The features such as casting character got well, has the bright prospects for substituting traditional material, is known as 21 century green metal structural material.But
The corrosion resistance of magnesium alloy is poor, seriously hinders its commercial Application.
So the surfacecti proteon processing of magnesium alloy is particularly important.In general, on production line to the processing of magnesium alloy have molding,
The processes such as refine, degreasing, pickling, surface adjustment, epithelium processing.Wherein, epithelium handles this link, is commonly used with phosphorus in the industry
Barbiturates medicament is surface-treated magnesium alloy for the film agent of Material synthesis.But this preparation handles it in epithelium
Afterwards industrial wastewater in contain a large amount of phosphorus, being discharged into environment can cause algae and other planktonic organisms to breed rapidly, cause
Dissolved Oxygen in Water amount declines, water quality deterioration, fish and other biological mortality.
In view of this, it is really necessary to develop a kind of not phosphorous film agent, to solve to carry out using phosphorous film agent in the past
Epithelium handles wastewater produced the problem of causing waters eutrophication.
【Invention content】
Therefore, the purpose of the present invention is to provide a kind of non-phosphate film agent, which not can cause environmental pollution,
And after carrying out non-phosphate film processing to magnesium-alloy material using it, the corrosion resistance and paint film adhesion of product have
Prodigious raising.
In order to achieve the above object, non-phosphate film agent of the invention, with densimeter, including:
Solvent is deionized water.
Preferably, the citric acid is coalescents.
Preferably, 65% concentrated nitric acid is used to adjust the pH value of solution.
The process for carrying out epithelium processing to magnesium alloy using the non-phosphate film agent is as follows:First, it magnesium alloy pressure-casting or penetrates
Go out to be shaped to magnesium alloy workpiece;Secondly, refine processing is carried out to the magnesium alloy workpiece;Again, to the magnesium alloy workpiece into
Row ungrease treatment;Then, pickling is carried out to the magnesium alloy work-piece surface;Thereafter, surface tune is carried out to the magnesium alloy workpiece
It is whole;Finally, non-phosphate film processing is carried out.
Compared to the prior art, non-phosphate film agent of the invention, phosphoric acid salt film agent different from the past, is entirely free of
There are P elements.To prevent generating phosphorous industrial wastewater in epithelium processing, do not pollute the environment, it is more friendly to environment,
And the cost of Removal of Phosphorus in Wastewater is saved.After epithelium processing being carried out to magnesium alloy, the corrosion resistance and paint of product
Film adhesive force all improves a lot.
【Description of the drawings】
Fig. 1 is painted the flow diagram that non-phosphate film processing is carried out to magnesium alloy.
【Specific implementation mode】
The non-phosphate film agent prescription of the present invention, with densimeter, including:Lithium zirconium 50g/L-150g/L, potassium fluorozirconate
20g/L-30g/L, citric acid 20g/L-30g/L, 65% concentrated nitric acid 10g/L-20g/L, solvent is deionized water.
The embodiment 1 of the non-phosphate film agent of the synthesis present invention is given below.With densimeter, including:
Solvent is deionized water.
According to the above proportioning, lithium zirconium 100g, potassium fluorozirconate 25g, citric acid 25g are weighed respectively, are put into 1000ml burnings
Cup in, add 800ml deionized water dissolvings, add 65% concentrated nitric acid 15g, stir evenly, add until completely dissolved from
Sub- water obtains non-phosphate film agent to 1000ml.
Prepare the embodiment 2 of the non-phosphate film agent of the present invention.With densimeter, including:
Solvent is deionized water.
Prepare the embodiment 3 of the non-phosphate film agent of the present invention.With densimeter, including:
Solvent is deionized water.
Prepare the embodiment 4 of the non-phosphate film agent of the present invention.With densimeter, including:
Solvent is deionized water.
The process for preparation of embodiment 2,3,4 is similar to Example 1, therefore repeats no more.
Non-phosphate film agent 1, non-phosphate film agent 2, non-phosphate film agent 3, non-phosphate film agent are respectively obtained by above 4 embodiments
4。
The technological process for using above-mentioned non-phosphate film liquid to carry out epithelium processing to magnesium-alloy material is illustrated below.
S101:Magnesium alloy pressure-casting or ejection formation are at magnesium alloy workpiece;
S102:Refine processing is carried out to magnesium alloy workpiece;
S103:Ungrease treatment is carried out to magnesium alloy workpiece;
S104:Pickling is carried out to magnesium alloy workpiece;
S105:Surface adjustment is carried out to magnesium alloy workpiece;
S106:After non-phosphate film agent is added ammonium metavanadate, non-phosphate film processing is carried out to magnesium alloy workpiece.
Preferably, in S106 non-phosphate film agent a concentration of 80g/L-120g/L.
Preferably, in S106 ammonium metavanadate a concentration of 0.5g/L-1g/L.
Preferably, being carried out at a temperature of 40 DEG C -45 DEG C in S106, handling duration 30s-60s.
Wherein, the ungrease treatment in S103 refer to using 50 ± 10g/L degreasing agent at a temperature of 70 ± 5 DEG C to workpiece
A length of 120s-300s when cleaning, removes the greasy dirt of product surface.Wherein, degreasing agent M-121 is white powder metal,
It is made of alkaline matter and surfactant.
Wherein, the pickling in S104 refers to the mix acid liquor using 100g/L-200g/L, and the potassium fluoride of 5 ± 3g/L is added,
Pickling carried out to workpiece at a temperature of 50 ± 10 DEG C, when a length of 60s-120s.Mix acid liquor is mainly to be made by the erosion of acid
The oxidation film layer and mould release except Mg alloy surface are spent, plays the role of cleaning magnesium alloy work-piece surface.Wherein, mix acid liquor
For M301, the solution compounded by a certain percentage for organic-inorganics acids such as lactic acid, citric acid, phytic acid and phosphoric acid.
Wherein, the surface adjustment in S105 refers to the temperature using the surface conditioner of 150g/L-300g/L at 70 ± 10 DEG C
Workpiece is cleaned under degree, when a length of 30s-120s.Surface adjustment mainly carries out Mg alloy surface weak corrosion function, makes magnesium
Alloy surface uniforms, while removing remaining releasing agent.Wherein, surface conditioner AC203, by potassium hydroxide or hydroxide
Potassium, sodium citrate or disodium ethylene diamine tetraacetate and surfactant etc. compound.
In addition, the ammonium metavanadate in S106 can be replaced with sodium metavanadate, but final epithelium treatment effect does not make
It is good with ammonium metavanadate.
The present invention also provides a kind of products, for the magnesium-alloy material obtained after the processing of above-mentioned epithelium.
Through the above steps, after the epithelium processing that magnesium alloy is completed using non-phosphate film agent 1.Correlation production to obtaining
Product carry out salt spray test (corrosion-resistant test) and the test of coating mesh segmentation respectively.
Test condition see the table below with result:
Finally, test result shows that the test of magnesium-alloy material neutral salt spray after processing corrosion resistance reaches more than for 24 hours, paints
Film adhesive force reaches 0 grade (0-5 grades, 0 grade best).
Likewise, being carried out at non-phosphate film to magnesium alloy using non-phosphate film agent 2, non-phosphate film agent 3, non-phosphate film agent 4
Obtained magnesium-alloy material is managed, carries out above-mentioned test respectively.Acquired test result is almost identical.Therefore, as long as it is above-mentioned without phosphorus
Film agent each component concentration within the numerical range, even if to salt spray test and coating mesh segmentation if proportioning is different
The result of test does not have any influence, i.e., will not change the non-phosphate film treatment effect of magnesium alloy.
It should be pointed out that the present invention is not limited to the above embodiment, any person skilled in the art is based on this
Inventive technique scheme both falls within the protection of the present invention to any simple modification, equivalent change and modification made by above-described embodiment
In range.
Claims (8)
1. a kind of non-phosphate film agent, which is characterized in that with densimeter, including:
Solvent is deionized water.
2. non-phosphate film agent as described in claim 1, which is characterized in that the citric acid is coalescents.
3. non-phosphate film agent as described in claim 1, which is characterized in that 65% concentrated nitric acid is for adjusting pH value.
4. a kind of method carrying out non-phosphate film processing using the non-phosphate film agent as described in any one in claims 1 to 3,
It is characterized by comprising the following steps:
(1) magnesium alloy pressure-casting or ejection formation are magnesium alloy workpiece;
(2) refine processing is carried out to the magnesium alloy workpiece;
(3) ungrease treatment is carried out to the magnesium alloy workpiece;
(4) pickling is carried out to the magnesium alloy workpiece;
(5) surface adjustment is carried out to the magnesium alloy workpiece;
(6) after the non-phosphate film agent being added ammonium metavanadate, non-phosphate film processing is carried out to the magnesium alloy workpiece.
5. non-phosphate film processing method as claimed in claim 4, which is characterized in that non-phosphate film described in the step (6)
A concentration of 80g/L-120g/L of agent.
6. non-phosphate film processing method as claimed in claim 4, which is characterized in that ammonium metavanadate described in the step (6)
A concentration of 0.5g/L-1g/L.
7. non-phosphate film processing method as claimed in claim 4, which is characterized in that the step (6) is at 40 DEG C -45 DEG C
At a temperature of carry out, handling duration 30s-60s.
8. a kind of magnesium-alloy material, which is characterized in that the magnesium-alloy material is through any one institute in claims 1 to 3
The processed rear magnesium-alloy material obtained of non-phosphate film agent stated.
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101487116A (en) * | 2009-02-13 | 2009-07-22 | 西安建筑科技大学 | Steel surface passivation film forming liquid and use method thereof |
CN101660154A (en) * | 2009-09-23 | 2010-03-03 | 南京久久化工技术开发有限公司 | Non-phosphate film agent |
CN102443794A (en) * | 2011-12-06 | 2012-05-09 | 中国科学院金属研究所 | Aluminum alloy scratch resistant and fingerprint resistant chromium-free chemical conversion solution for ship and preparation method of conversion film |
CN102766862A (en) * | 2012-08-21 | 2012-11-07 | 湖南大学 | Treating fluid and method for preparing vanadium-zirconium composite conversion coatings with self-repairing performance on aluminum alloy surfaces through same |
CN103121005A (en) * | 2011-11-21 | 2013-05-29 | 汉达精密电子(昆山)有限公司 | Method for manufacturing magnesium alloy colorless transparent film and product with the same |
-
2017
- 2017-04-20 CN CN201710261592.6A patent/CN108728837A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101487116A (en) * | 2009-02-13 | 2009-07-22 | 西安建筑科技大学 | Steel surface passivation film forming liquid and use method thereof |
CN101660154A (en) * | 2009-09-23 | 2010-03-03 | 南京久久化工技术开发有限公司 | Non-phosphate film agent |
CN103121005A (en) * | 2011-11-21 | 2013-05-29 | 汉达精密电子(昆山)有限公司 | Method for manufacturing magnesium alloy colorless transparent film and product with the same |
CN102443794A (en) * | 2011-12-06 | 2012-05-09 | 中国科学院金属研究所 | Aluminum alloy scratch resistant and fingerprint resistant chromium-free chemical conversion solution for ship and preparation method of conversion film |
CN102766862A (en) * | 2012-08-21 | 2012-11-07 | 湖南大学 | Treating fluid and method for preparing vanadium-zirconium composite conversion coatings with self-repairing performance on aluminum alloy surfaces through same |
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Effective date of registration: 20190830 Address after: 243000 No. 1430 Huxi Southwest Road, Ma'anshan Economic and Technological Development Zone, Anhui Province Applicant after: Huafu Precision Technology (Ma'anshan) Co., Ltd. Address before: Suzhou City, Jiangsu province 215300 Eagle Kunshan Road Development Zone No. 66 Applicant before: Kunshan Han Ding Feinmetall GmbH |
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Application publication date: 20181102 |