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Phosphorous ion-free treating agent for treating steel plate

A technology of phosphorus ions and steel plates, applied in the coating process of metal materials, etc., can solve problems such as health and environmental hazards, and achieve the effects of improved uniformity, excellent corrosion resistance, and good matching

Inactive Publication Date: 2011-04-13
SHENYANG PARKERIZING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Because the phosphating solution contains zinc, nickel, manganese and other heavy metal elements that will cause serious harm to human health and the environment, and phosphorus will cause eutrophication of the environmental water body, so the discharge of wastewater from the phosphating solution is strictly restricted. In order to meet the requirements of the market and the environment, it is of great practical significance to develop a new type of non-phosphorus and heavy metal-free treatment solution that can replace the traditional phosphating solution.

Method used

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  • Phosphorous ion-free treating agent for treating steel plate
  • Phosphorous ion-free treating agent for treating steel plate
  • Phosphorous ion-free treating agent for treating steel plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) A phosphorus-free ion forming agent for steel plate treatment

[0024] 1) Composition of the inorganic phase

[0025] Fluorozirconic acid 8%, Fluotitanic acid 4%,

[0026] Magnesium nitrate 3%, Aluminum nitrate 2%,

[0027] Ferric nitrate 0.2%, ammonium nitrate 0.2%,

[0028] n-butyl titanate 0.3%, hexamethylenetetramine 0.02%,

[0029] Water 82.28%;

[0030] Preparation method: according to the above ratio, put water, fluozirconic acid and fluotitanic acid in a container, add magnesium nitrate, iron nitrate, aluminum nitrate and ammonium nitrate in turn under stirring, and add hexamethylenetetramine after stirring evenly Stir with n-butyl titanate evenly;

[0031] 2) Composition of the organic phase

[0032] 3-Aminopropyltriethoxysilane 22%, Ethanolamine 12%,

[0033] Nonylphenol ethoxylate 7%, water 59%.

[0034] Preparation method: According to the above ratio, put water and nonylphenol polyoxyethylene ether in a container, and add them in sequence under ...

Embodiment 2

[0040] (1) A phosphorus-free ion forming agent for steel plate treatment

[0041] 1) Composition of the inorganic phase

[0042] Fluorozirconic acid 13%, Fluorotitanic acid 6%,

[0043] Magnesium nitrate 2.5%, Aluminum nitrate 1.8%,

[0044] Ferric nitrate 0.4%, ammonium nitrate 0.5%,

[0045] n-butyl titanate 0.4%, hexamethylenetetramine 0.05%,

[0046] Water 75.35%;

[0047] Preparation method: according to the above ratio, put water, fluozirconic acid and fluotitanic acid in a container, add magnesium nitrate, iron nitrate, aluminum nitrate and ammonium nitrate in turn under stirring, and add hexamethylenetetramine after stirring evenly Stir with n-butyl titanate evenly;

[0048] 2) Composition of the organic phase

[0049] N-2-Aminoethyl-3-aminopropyltrimethoxysilane 25%, Ethanolamine 20%,

[0050] Nonylphenol polyoxyethylene ether 8%, water 47%;

[0051] Preparation method: According to the above ratio, put water and nonylphenol polyoxyethylene ether in a containe...

Embodiment 3

[0057] (2) A phosphorus-free ion forming agent for steel plate treatment

[0058] 1) Composition of the inorganic phase

[0059] Fluorozirconic acid 20%, Fluotitanic acid 10%,

[0060] Magnesium nitrate 3.5%, Aluminum nitrate 2.2%,

[0061] Ferric nitrate 0.7%, ammonium nitrate 0.8%,

[0062] n-butyl titanate 0.6%, hexamethylenetetramine 0.45%,

[0063] Water 61.75%;

[0064] Preparation method: according to the above ratio, put water, fluozirconic acid and fluotitanic acid in a container, add magnesium nitrate, iron nitrate, aluminum nitrate and ammonium nitrate in turn under stirring, and add hexamethylenetetramine after stirring evenly Stir with n-butyl titanate evenly;

[0065] 2) Composition of the organic phase

[0066] Bis(3-trimethoxysilylpropyl)amine 20%, Ethanolamine 18%,

[0067] Nonylphenol polyoxyethylene ether 6%, water 56%;

[0068] Preparation method: according to the above ratio, put water and nonylphenol polyoxyethylene ether in a container, add bis(3...

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Abstract

The invention relates to a phosphorous ion-free treating agent for treating a steel plate. The technical scheme is that: the phosphorous ion-free treating agent comprises the following components in percentage by weight: 1 to 5 percent of inorganic phase, 1 to 5 percent of organic phase and the balance of water, wherein the inorganic phase consists of 5 to 20 percent of fluorozirconic acid, 2.5 to 10 percent of hydrofluotitanic acid, 2 to 4 percent of magnesium nitrate, 1 to 3 percent of aluminum nitrate, 0.1 to 1 percent of ferric nitrate, 0.1 to 1 percent of ammonium nitrate, 0.1 to 1 percent of tetrabutyl titanate, 0.01 to 0.5 percent of hexamethylene tetramine and the balance of water; and the organic phase consists of 20 to 25 percent of silane coupling agent, 10 to 20 percent of ethanolamine, 5 to 10 percent of nonylphenol polyoxyethylene ether and the balance of water. When the phosphorous ion-free treating agent is used for treating a metal work piece, such as the steel plate, the formed film layer has high corrosion resistance, adhesive forces of a metal substrate and a coating are enhanced, the service life of 5 percent neutral salt spray is longer than 1,000 hours, and the coating performance reaches or exceeds that of a ternary zinc phosphorization treatment process.

Description

technical field [0001] The invention relates to a phosphorus-free ionizing agent mainly used in the field of automobile or household appliance production to process steel plate workpieces. Background technique [0002] In the production process of automobiles or home appliances, it is necessary to coat steel plate metal workpieces to improve the corrosion resistance and weather resistance of the products. Phosphating treatment is an indispensable step in this process. [0003] At present, phosphating treatment usually refers to the process of treating the metal surface with a phosphating solution containing zinc, nickel, manganese and phosphate, and forming an insoluble phosphate film layer with a certain corrosion resistance on the metal surface. This layer of phosphate film can improve the adhesion between metal substrates and coatings, and improve the corrosion resistance of metals. Therefore, phosphating treatment is widely used in automobiles, home appliances and steel ...

Claims

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Application Information

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IPC IPC(8): C23C22/34
Inventor 张洋栗荣贺张建伟周宪民谢贇张蕾
Owner SHENYANG PARKERIZING
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