CN109609942A - A kind of manganese magnesium based phosphatization liquid - Google Patents
A kind of manganese magnesium based phosphatization liquid Download PDFInfo
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- CN109609942A CN109609942A CN201811626655.4A CN201811626655A CN109609942A CN 109609942 A CN109609942 A CN 109609942A CN 201811626655 A CN201811626655 A CN 201811626655A CN 109609942 A CN109609942 A CN 109609942A
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- manganese
- magnesium
- nitrate
- phosphating
- phosphating coat
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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
- C23C22/36—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 containing also phosphates
- C23C22/368—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 containing also phosphates containing magnesium cations
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- Chemical Kinetics & Catalysis (AREA)
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- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The invention discloses a kind of manganese magnesium based phosphatization liquids, are related to standard component technical field of surface, and it further includes following components based on mass concentration which, which takes water as a solvent: Mazhev salt 200-300 g/l；Manganese nitrate 50-90g/l；Magnesium nitrate 70-120 g/l；Phosphatase 24 0-50 g/l；Nitrilotriacetic acid 2-4g/l；Hexafluoro zirconate 3-5 g/l.The magnesium nitrate that the present invention passes through the addition certain content into phosphating solution, nitrilotriacetic acid and hexafluoro zirconate, not only greatly improve the fine and closely woven degree of generated phosphating coat after phosphorating treatment, the phosphating coat of formation is more continuous fine and close and does not see crystallization, so that phosphating coat has good corrosion resistance and wearability, simultaneously, the thickness of the phosphating coat can reach 18 μm or more, abrasion resistance can reach 11 times or more, in addition, manganese magnesium based phosphatization liquid of the invention has good stability, the phosphorus slag amount for carrying out phosphorating treatment generation is considerably less, just start phosphorus slag occur by 9-12 phosphatization, it is more environmentally friendly, it is particularly suitable to be applied to carry out phosphorating treatment to steel standard part.
Description
Technical field
The present invention relates to standard component technical field of surface, in particular to a kind of manganese magnesium based phosphatization liquid.
Background technique
Processing is carried out to steel standard part surface now and generallys use Zn-Al hydrotalcite high temperature phosphating solution, is generated after surface treatment
Manganese iron film or zinc-manganese iron film thickness, adhesive force it is fine, in addition, phosphating coat generated also has certain corrosion resistance.
But since manganese ion or zinc ion partial size are big, the main component manganese hydrogen phosphate and phosphoric acid hydrogen zinc crystalline particle of film are thicker,
Therefore phosphating coat is more loose, and the compactness of film is poor, and there are gap between such phosphating coat, these gaps may bring acidity into
Phosphatization medical fluid, although can be passivated processing behind phosphatization, passivating solution is alkaline, although to a certain extent being capable of neutral zone
The acid phosphating solution entered, but the gap between phosphating coat still remains, air and moisture will be filled in gap, these are just
The corrosion resistance and wearability of film can be greatly reduced, and for the phosphating coat of protective action is played on steel standard part surface, corrosion resistant
Corrosion and wearability are its performance indicators the most main, the corrosion resistance and wearability of existing zinc-manganese based phosphatization liquid without
Method reaches higher and higher market demands.
In addition, carrying out surface treatment using zinc-manganese based phosphatization liquid is easy to produce a large amount of phosphorus slag, environment is caused seriously
Pollution.
Summary of the invention
The technical problem to be solved in the present invention is that providing a kind of manganese magnesium based phosphatization liquid, which is used for steel
Standard component surface treatment produces extremely fine and closely woven phosphating coat, so as to improve the corrosion resistance and wearability of phosphating coat, and
The phosphorus slag amount generated in parkerizing process is less, to be effectively protected environment.
To solve the above-mentioned problems, using following technical scheme: a kind of manganese magnesium based phosphatization liquid takes water as a solvent, by quality
Densimeter, including following components:
Mazhev salt 200-300 g/l；
Manganese nitrate 50-90g/l；
Magnesium nitrate 70-120 g/l；
Phosphatase 24 0-50 g/l；
Nitrilotriacetic acid 2-4g/l；
Hexafluoro zirconate 3-5 g/l.
Preferably, the ratio between additional amount of the manganese nitrate and magnesium nitrate is 7:9.
It is highly preferred that above-mentioned manganese magnesium based phosphatization liquid includes following components based on mass concentration:
250 g/l of Mazhev salt；
Manganese nitrate 70g/l；
90 g/l of magnesium nitrate；
5 g/l of phosphatase 24；
Nitrilotriacetic acid 3g/l；
4 g/l of hexafluoro zirconate.
Preferably, the additional amount of the magnesium nitrate is 85-95g/l.
It is highly preferred that the additional amount of the magnesium nitrate is 90g/l.
Compared to the prior art, the invention has the following advantages: the present invention is by the way that specific contain is added into phosphating solution
Magnesium nitrate, nitrilotriacetic acid and the hexafluoro zirconate of amount not only greatly improve the fine and closely woven journey of generated phosphating coat after phosphorating treatment
Degree, the phosphating coat of formation is more continuous fine and close and does not see crystallization, so that phosphating coat is with good corrosion resistance and resistance to
Mill property, abrasion resistance can reach 11 times or more, and salt spray test test result is greater than 100min, meanwhile, the thickness of the phosphating coat is also
It can guarantee that certain thickness, film thickness can reach 18 μm or more, in addition, manganese magnesium based phosphatization liquid of the invention has good stability,
The phosphorus slag amount for carrying out phosphorating treatment generation is considerably less, just starts phosphorus slag occur by 9-12 phosphatization, more environmentally friendly, particularly suitable
Phosphorating treatment is carried out applied to steel standard part.
Specific embodiment
Embodiment is given below so that the present invention to be specifically described, it is necessary to which indicated herein is following embodiment
It is used to further illustrate the present invention, should not be understood as limiting the scope of the invention, the ordinary skill in the field
Personnel still fall within protection scope of the present invention to some nonessential improvement of the invention made or adjustment according to this embodiment.
The preparation of manganese magnesium based phosphatization liquid in embodiment 1-5 and comparative example 1-2
According to the following table 1 formula, appropriate Mazhev salt, manganese nitrate, magnesium nitrate, phosphoric acid, nitrilotriacetic acid, hexafluoro zirconate are weighed, is added
In deionized water after mixing to obtain the final product.
Phosphating process are as follows: oil removing → washing → acid-wash activation → washing → table tune → phosphatization → washing → passivation → washing → drying
(drying).
The specific targets of phosphating process see the table below shown in 2.
The performance test of phosphating coat:
Bolt M8X16 made of the phosphating solution centering carbon steel material 40ACR that embodiment 1-5 and comparative example 1-2 are made into carries out phosphorus
Change, and corresponding test made to the phosphating coat generated after phosphorating treatment, testing standard is as follows:
1, the appearance of phosphating coat, film thickness, corrosion resistance (salt spray test) are tested referring to standard GB/T/T6807-2001；
2, the test of phosphating coat adhesive force is referring to steel pipe shackle thread gluing test up and down, i.e., under certain torque (400n.m) effect
The total degree born when film is finally destroyed.
The performance data test result of phosphating solution see the table below shown in 3 in embodiment 1-5 and comparative example 1-2.
By upper table 3 it is found that the manganese magnesium based phosphatization liquid in embodiment 1-5 steel and iron parts are surface-treated after phosphating coat compared with
For continuous densification and crystallization is not seen, phosphatization film thickness can reach 18 μm or more, and abrasion resistance can reach 11 times or more, phosphating solution
Phosphorus slag is just generated after 9 times or more parkerizing processes, and salt spray test test result is greater than 100min, i.e., in the present invention
Manganese magnesium based phosphatization liquid not only produces extremely fine and closely woven phosphating coat, to ensure that phosphating coat has good corrosion resistance and resistance to
Mill property, in addition, the stability of the phosphating solution is preferable, the phosphorus slag amount for carrying out phosphorating treatment generation is considerably less, more environmentally friendly.
The nitrilotriacetic acid that the present invention is added is as complexing agent, and for the metal ions such as manganese, magnesium, iron to be complexed, control phosphatization is anti-
Speed is answered, plays a part of to stablize phosphatization tank liquor.Suitable hexafluoro zirconate is added, phosphating solution can be made more stable, so that
Phosphating coat is finer and closely woven, and corrosion resistance and wearability are more preferable.The two is added together, can act synergistically and significantly improve phosphating solution
Stability, corrosion resistance and wearability.The content of nitrilotriacetic acid is lower than 2g/l in comparative example 1, and the content of hexafluoro zirconate is lower than
3g/l, the content of nitrilotriacetic acid is higher than 4g/l in comparative example 2, and the content of hexafluoro zirconate is higher than 5g/l, abrasion resistance, film thickness,
The content of ferrous ion and the test result of salt spray test are obviously inferior to implement when phosphatization number, phosphorus slag occur when there is phosphorus slag
Example 1-3.
Those skilled in the art will be apparent to the skilled artisan that the additional amount of magnesium nitrate should control as 85- in carrying out the present invention
95g/l is advisable.This is because phosphating coat is more and more thinner with the addition of magnesium ion, film is more and more thinner, but film is finer and close,
Magnesium ion is added excessive, then it is too thin to will lead to phosphating coat, wearability decline.In addition, three above is real as shown in embodiment 3-5
The additional amount for applying manganese nitrate in example is 70 g/l, and relatively optimal embodiment is embodiment 4, manganese nitrate in the embodiment
It is 7:9 with the ratio between the additional amount of magnesium nitrate.Nitric acid content of magnesium in embodiment 3 is slightly lower, and performance indexes is not so good as embodiment 4,
And embodiment 5 joined more magnesium nitrates on the basis of embodiment 4, indices are compared with embodiment 4 without obvious
It improves.Therefore, phosphating solution performance and cost are comprehensively considered, using the scheme in embodiment 4 it is further preferred that.
Claims (5)
1. a kind of manganese magnesium based phosphatization liquid, takes water as a solvent, which is characterized in that based on mass concentration, including following components:
Mazhev salt 200-300 g/l；
Manganese nitrate 50-90g/l；
Magnesium nitrate 70-120 g/l；
Phosphatase 24 0-50 g/l；
Nitrilotriacetic acid 2-4g/l；
Hexafluoro zirconate 3-5 g/l.
2. manganese magnesium based phosphatization liquid according to claim 1, which is characterized in that the additional amount of the manganese nitrate and magnesium nitrate it
Than for 7:9.
3. manganese magnesium based phosphatization liquid according to claim 2, which is characterized in that based on mass concentration, including following components:
250 g/l of Mazhev salt；
Manganese nitrate 70g/l；
90 g/l of magnesium nitrate；
5 g/l of phosphatase 24；
Nitrilotriacetic acid 3g/l；
4 g/l of hexafluoro zirconate.
4. manganese magnesium based phosphatization liquid according to claim 1-3, which is characterized in that the additional amount of the magnesium nitrate is
85-95g/l。
5. manganese magnesium based phosphatization liquid according to claim 4, which is characterized in that the additional amount of the magnesium nitrate is 90g/l.
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| CN201811626655.4A CN109609942B (en) | 2018-12-28 | 2018-12-28 | Manganese-magnesium phosphating solution |
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| CN201811626655.4A CN109609942B (en) | 2018-12-28 | 2018-12-28 | Manganese-magnesium phosphating solution |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4440300A1 (en) * | 1994-11-11 | 1996-05-15 | Metallgesellschaft Ag | Process for applying phosphate coatings |
| CN102851657A (en) * | 2012-08-31 | 2013-01-02 | 成都天马铁路轴承有限公司 | Phosphatization method for preventing generation of corrosion pits in railway antifriction bearing ring |
| US20130296203A1 (en) * | 2011-02-08 | 2013-11-07 | Bortek Bor Teknolojileri Ve Mekatronik Sanayi Ticaret Anonim Sirketi | Method for improving the features of phosphate coating |
| CN104929332A (en) * | 2015-06-03 | 2015-09-23 | 安徽鸿路钢结构(集团)股份有限公司 | Heat-retaining and sound-insulating metal decorating plate |
| CN105369238A (en) * | 2015-11-23 | 2016-03-02 | 安徽千和新材料科技发展有限公司 | Normal-temperature non-slag phosphating solution used before electrophoresis of galvanized steel sheet for automobile and preparation method of normal-temperature non-slag phosphating solution |
-
2018
- 2018-12-28 CN CN201811626655.4A patent/CN109609942B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4440300A1 (en) * | 1994-11-11 | 1996-05-15 | Metallgesellschaft Ag | Process for applying phosphate coatings |
| US20130296203A1 (en) * | 2011-02-08 | 2013-11-07 | Bortek Bor Teknolojileri Ve Mekatronik Sanayi Ticaret Anonim Sirketi | Method for improving the features of phosphate coating |
| CN102851657A (en) * | 2012-08-31 | 2013-01-02 | 成都天马铁路轴承有限公司 | Phosphatization method for preventing generation of corrosion pits in railway antifriction bearing ring |
| CN104929332A (en) * | 2015-06-03 | 2015-09-23 | 安徽鸿路钢结构(集团)股份有限公司 | Heat-retaining and sound-insulating metal decorating plate |
| CN105369238A (en) * | 2015-11-23 | 2016-03-02 | 安徽千和新材料科技发展有限公司 | Normal-temperature non-slag phosphating solution used before electrophoresis of galvanized steel sheet for automobile and preparation method of normal-temperature non-slag phosphating solution |
Non-Patent Citations (2)
| Title |
|---|
| 第1版: "《电镀车间技术指南》", 31 May 2007, 国防工业出版社 * |
| 陈榕林等: "《新编机械工程师手册》", 31 July 1994, 中国轻工业出版社 * |
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