CN101182639A - Steel phosphating liquid containing magnesium and nickel and phosphating method thereof - Google Patents
Steel phosphating liquid containing magnesium and nickel and phosphating method thereof Download PDFInfo
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- CN101182639A CN101182639A CNA2007100459188A CN200710045918A CN101182639A CN 101182639 A CN101182639 A CN 101182639A CN A2007100459188 A CNA2007100459188 A CN A2007100459188A CN 200710045918 A CN200710045918 A CN 200710045918A CN 101182639 A CN101182639 A CN 101182639A
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Abstract
The invention relates to a magnesium-nickel contained steel phosphorization solution and a phosphorization method thereof. The components of the phosphorization solution and the concentration of each component are as follows: magnesium oxide of 4.5 to 4.8g/L, calcium carbonate of 3.0 to 3.5g/L, sodium nitrate of 1.5 to 2.5 g/L, and sodium dodecylbenzebesuefonate of 0.05 to 0.1g/L. The specific steps of the method are as follows: a steel sheet is put into the well-prepared phosphorization solution; the pH value of he phosphorization solution is kept at 2.0 to 4.0; ozone is input the ozone concentration is kept within the scope of 1.3 to 3.0 mg/L; a phosphorization reaction is in process under the temperature of 35 to 50 DGE C for 3 to 10 minutes; after the phosphorization is completed, the steel sheet is cleaned with the clean deion water and then dried. The phosphorization solution of the invention does not contain poisonous or carcinogenic Cr (VI), nitrite (NO2<->), nitrogen oxide (NOx), and other components. The phosphorization temperature is low and the film-forming is quick. Moreover, a phosphorization film formed with the invention is even and compact, and is provided with the good corrosion and abrasion resistance. In addition, the invention is provided with the effect of promoting the coating layer adhesive force, and so on.
Description
Technical field
The present invention relates to a kind of steel iron phosphatising liquid and method for bonderizing thereof that contains magnesium-nickel.
Background technology
Phosphatization is that iron and steel parts is handled in the solution that contains phosphoric acid salt, oxidation promotor, auxiliary agent etc., makes its surface form phosphatize phosphate coat.Effects such as this phosphatize phosphate coat has protection against corrosion, improves coating adhesion, lubricated.
In the existing literature report, as " electroplating technology handbook (China Machine Press's in August, 1997 second edition); And for example Chinese patent ZL92102593.9, ZL200510013473.6, ZL200610092988.4 are wherein disclosed about the Phosphating Accelerant in the phosphatization liquid, often contain deleterious or carcinogenic material, as Cr (VI), nitrite (NO
2 -), perhaps can produce deleterious oxynitride (NO
x) wait composition.
Chinese patent ZL200610019031.7 discloses a kind of ternary Zn-Ni-Mn phosphorizing solution and preparation method, it is introduced that phosphatize phosphate coat that this invention becomes is evenly fine and close, and alkali resistance is good, and solidity to corrosion is strong, is applicable to the bonderizing that cathode electro-coating is preceding.But this invention still will be used toxic ingredients such as nitrite.
Chinese patent ZL200710039973.6 discloses a kind of " adopting the method for bonderizing of ozone as steel iron phosphatising accelerator ", can avoid using above-mentioned objectionable impurities.But by this method, workpiece soak time in phosphatization liquid still needed more than 15 minutes, and in 0.01mol/L phenyl dioster diphosphate ammonium solution, soak 50min and can not contain Mg in the described phosphatization liquid of this patent so that copper sulfate drop corrosion experiment result is 419S
2+-Ni
2+
Therefore, seek a kind of effective, easy and simple to handle, nontoxic and method for bonderizing that can finish fast, for realizing that large-scale pipeline production is significant.
Summary of the invention
One of purpose of the present invention is to provide a kind of steel iron phosphatising liquid that contains magnesium-nickel, does not contain poisonous or carcinogenic Cr (VI), nitrite (NO in this phosphatization liquid
2 -), and oxynitride (NO
x) wait composition, environmentally friendly.
Two of purpose of the present invention is to provide the method for this phosphatization liquid phosphatization iron and steel, and this method adopts ozone as Phosphating Accelerant, is a kind of method of fast bonderizing iron and steel.
For achieving the above object, the present invention adopts following technical scheme:
A kind of steel iron phosphatising liquid that contains magnesium-nickel is characterized in that the composition of this phosphatization liquid and the concentration of each composition are:
Magnesium oxide 4.5～4.8g/L lime carbonate 3.0～3.5g/L
Nickelous nitrate 7.5～8g/L SODIUMNITRATE 1.5～2.5g/L
Sodium dodecylbenzene sulfonate 0.05～0.1g/L; This phosphatization liquid is 2～4 by NaOH solution and phosphorus acid for adjusting pH value.
The method of the above-mentioned steel iron phosphatising liquid phosphatization iron and steel that contains magnesium-nickel is characterized in that this method has following steps:
A) steel disc with the activation of 1mol/L hydrochloride derusting, is put into the above-mentioned phosphatization liquid for preparing subsequently after pre-treatment; PH value to 2.0～4.0 that keep phosphatization liquid simultaneously;
B) ozone is fed in the above-mentioned phosphatization liquid, the ozone concn in the maintenance phosphatization liquid is in 1.3～3.0mg/L scope; And under 35～50 ℃ of temperature phosphating reaction 3-10 minute; After phosphatization finishes, steel disc with washed with de-ionized water, dry up; The bonderizing process is promptly finished.
The advantage of the inventive method is:
(1) the phosphatization working temperature is low, and film forming speed is fast, and formed phosphatize phosphate coat even compact;
(2) do not contain poisonous or carcinogenic Cr (VI), nitrite (NO
2 -), and oxynitride (NO
x) wait composition;
(3) phosphatize phosphate coat of Xing Chenging has good anti-corrosion, and have wear-resisting, lubricated, improve effect such as coating adhesion.
Embodiment
After now specific embodiments of the invention being described in.
Embodiment 1
In the present embodiment, adopt the prescription of phosphatization liquid to be: magnesium oxide, 4.6g; Lime carbonate, 3.2g; Nickelous nitrate, 7.6g; SODIUMNITRATE, Sodium dodecylbenzene sulfonate 0.1g.Above-claimed cpd is dissolved in the deionized water, is mixed with 1 liter of phosphatization liquid; And be 3.10-3.15 with 30g/LNaOH solution and 30% phosphorus acid for adjusting pH value.
To polish step by step with 1～No. 6 sand paper in advance then, and, with the activation of 1mol/L hydrochloride derusting, put into the above-mentioned phosphatization liquid for preparing subsequently again with the A3 steel disc of acetone oil removing; Meanwhile, by ozonizer ozone is fed in the above-mentioned phosphatization liquid, keeping the ozone concn in the phosphatization liquid is 1.6-1.8mg/L, and under 40-42 ℃ of temperature phosphating reaction 5 minutes.After phosphating reaction was finished, steel disc was used washed with de-ionized water 1 minute, uses 75 ℃ hot blast drying then, and parkerizing process is promptly finished.
Formed phosphatize phosphate coat detected after parkerizing process finished, and found that this phosphatize phosphate coat is light grey, rete densification, the heavy 6.84g/m of film
2, the phosphatize phosphate coat drop of anti-copper sulfate etching time is 347 seconds, the steel disc that phosphatization is crossed soaks after 96 hours in 5wt.%NaCl solution and rust staining occurs.The sticking power test reaches one-level.
Embodiment 2
In the present embodiment, adopt prescription and the foregoing description 1 of phosphatization liquid identical.The pre-treatment of A3 steel disc and last handling process are also identical with the foregoing description 1.Different is: the pH value of regulating phosphatization liquid is 2.5.The ozone concn that feeds in the above-mentioned phosphatization liquid is 2.6mg/L, and under 40-42 ℃ of temperature phosphatization 3 minutes.
Formed phosphatize phosphate coat detected after parkerizing process finished, and found that this phosphatize phosphate coat is light grey, and film even compact, film heavily are 3.62g/m
2Copper sulfate drop corrosion experiment result is 192S; Rust staining appearred in 80 hours in soak at room temperature in 5%NaCl solution; Phosphatize phosphate coat sticking power reaches one-level.
Embodiment 3
In the present embodiment, adopt prescription and the foregoing description 1 of phosphatization liquid identical.The pre-treatment of A3 steel disc and last handling process are also identical with the foregoing description 1.Different is: the pH value of regulating phosphatization liquid is 3.5.The ozone concn that feeds in the above-mentioned phosphatization liquid is 1.4mg/L, and under 40-42 ℃ of temperature phosphatization 10 minutes.
Formed phosphatize phosphate coat detected after parkerizing process finished, and found that this phosphatize phosphate coat is light grey, and film even compact, film heavily are 5.22g/m
2Copper sulfate drop corrosion experiment result is 267S; Rust staining appearred in 86 hours in soak at room temperature in 5%NaCl solution; Phosphatize phosphate coat sticking power reaches one-level.
Claims (2)
1. steel iron phosphatising liquid that contains magnesium-nickel is characterized in that the composition of this phosphatization liquid and the concentration of each composition are:
Magnesium oxide 4.5～4.8g/L lime carbonate 3.0～3.5g/L
Nickelous nitrate 7.5～8g/L SODIUMNITRATE 1.5～2.5g/L
Sodium dodecylbenzene sulfonate 0.05～0.1g/L; And to regulate pH with phosphoric acid be 2.0～4.0.
2. method that contains the steel iron phosphatising liquid phosphatization iron and steel of magnesium-nickel according to claim 1 is characterized in that this method has following steps:
A. steel disc with the activation of 1mol/L hydrochloride derusting, is put into the above-mentioned phosphatization liquid for preparing subsequently after pre-treatment; PH value to 2.0～4.0 that keep phosphatization liquid simultaneously;
B. ozone is fed in the above-mentioned phosphatization liquid, the ozone concn in the maintenance phosphatization liquid is in 1.3～3.0mg/L scope; And under 35～50 ℃ of temperature phosphating reaction 3-10 minute; After phosphatization finishes, steel disc with washed with de-ionized water, dry up; The bonderizing process is promptly finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100459188A CN101182639A (en) | 2007-09-13 | 2007-09-13 | Steel phosphating liquid containing magnesium and nickel and phosphating method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100459188A CN101182639A (en) | 2007-09-13 | 2007-09-13 | Steel phosphating liquid containing magnesium and nickel and phosphating method thereof |
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|---|---|
| CN101182639A true CN101182639A (en) | 2008-05-21 |
Family
ID=39448059
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| CNA2007100459188A Pending CN101182639A (en) | 2007-09-13 | 2007-09-13 | Steel phosphating liquid containing magnesium and nickel and phosphating method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773206A (en) * | 2012-05-17 | 2012-11-14 | 安徽省金寨县金钢叉车部件制造有限公司 | Work piece painting technique |
| CN107313040A (en) * | 2017-07-04 | 2017-11-03 | 河池桂嘉知识产权服务有限公司 | The method for bonderizing of steel surface |
| WO2019006680A1 (en) * | 2017-07-04 | 2019-01-10 | 深圳市长宏泰科技有限公司 | Filming agent for oil removal, rust removal and phosphating, steel and iron component, and filming treatment method therefor |
| CN109252204A (en) * | 2018-08-29 | 2019-01-22 | 昆明理工大学 | A method of preparing magnesium phosphate/Super-P composite corrosion proof coating |
-
2007
- 2007-09-13 CN CNA2007100459188A patent/CN101182639A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773206A (en) * | 2012-05-17 | 2012-11-14 | 安徽省金寨县金钢叉车部件制造有限公司 | Work piece painting technique |
| CN107313040A (en) * | 2017-07-04 | 2017-11-03 | 河池桂嘉知识产权服务有限公司 | The method for bonderizing of steel surface |
| WO2019006680A1 (en) * | 2017-07-04 | 2019-01-10 | 深圳市长宏泰科技有限公司 | Filming agent for oil removal, rust removal and phosphating, steel and iron component, and filming treatment method therefor |
| CN109252204A (en) * | 2018-08-29 | 2019-01-22 | 昆明理工大学 | A method of preparing magnesium phosphate/Super-P composite corrosion proof coating |
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Open date: 20080521 |