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Novel efficient and environment-friendly metal passivation solution and preparing method thereof

A technology of metal passivation and formulation, applied in the direction of metal material coating process, etc., to achieve the effect of easy realization, excellent film property and stable performance

Inactive Publication Date: 2016-01-20
CHANGSHU FENGFAN POWER EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem mainly solved by the present invention is to provide a new type of high-efficiency environment-friendly metal passivation solution and its preparation method, which can solve the above-mentioned shortcomings existing in the use of the existing passivation solution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The invention discloses a multifunctional metal passivation solution containing the following components: 5g / L of film-forming agent, 5g / L of sealing agent, 10g / L of sodium nitrate, 6g / L of sodium molybdenum phosphate, 15g / L of ammonium molybdenum phosphate, Ammonium phosphate 8g / L, zinc fluozirconate 5g / L, zirconium oxychloride 8g / L, salicylic acid 3g / L, corrosion inhibitor phosphine carboxylic acid 10g / L, surfactant 0.5g / L, oxidation resistance Additive 3g / L; The film-forming agent is sodium fluorosilicate; The sealing agent is orthosilicic acid; Wherein, the antioxidant additive is amine antioxidant butyl octyl diphenylamine and p, p A mixture of diisooctyldiphenylamine at a mass ratio of 1:1.

[0022] A kind of preparation method step of multifunctional metal passivation solution is as follows:

[0023] (1) Preparation of film-forming agent: Take an appropriate amount of sodium silicate, and add dilute hydrochloric acid with a concentration of 4.5mol / L to it under ...

Embodiment 2

[0029] The invention discloses a multifunctional metal passivation solution containing the following components: 8g / L of film-forming agent, 8g / L of blocking agent, 15g / L of sodium nitrate, 10g / L of sodium molybdenum phosphate, 20g / L of ammonium molybdenum phosphate, Ammonium phosphate 15g / L, zinc fluozirconate 8g / L, zirconium oxychloride 13g / L, salicylic acid 8g / L, corrosion inhibitor phosphine carboxylic acid 15g / L, surfactant 1g / L, antioxidant additive 5g / L; The film-forming agent is sodium fluorosilicate; The sealing agent is orthosilicic acid; Wherein, the antioxidant additive is amine antioxidant butyl octyl diphenylamine and p, p-12 A mixture of isooctyldiphenylamine at a mass ratio of 1:2.

[0030] A kind of preparation method step of multifunctional metal passivation solution is as follows:

[0031] (1) Preparation of film-forming agent: Take an appropriate amount of sodium silicate, and add dilute hydrochloric acid with a concentration of 2mol / L to it under stirring...

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Abstract

The invention discloses a novel efficient and environment-friendly metal passivation solution and a preparing method thereof. The passivation solution comprises, 5-8 g / L of film forming agent, 5-8 g / L of sealing agent, 10-15 g / L of sodium nitrate, 6-10 g / L of sodium phosphomolybdate hydrate, 15-20 g / L of ammonium molybdophosphate, 8-15 g / L of ammonium phosphate, 5-8 g / L of hexafluorozirconic acid zinc, 8-13 g / L of zirconyl chloride, 3-8 g / L of salicylic acid, 10-15 g / L of corrosion inhibitor, 0.5-1 g / L of surfactant and 3-5 g / L of antioxidant additive. The film forming agent is sodium fluosilicate, and the sealing agent is ortho-silicic acid. The preparing method of the metal passivation solution is simple, convenient and easy to implement, due to reasonable formula design, the prepared metal passivation solution has good film performance, sealing performance and oxidation resistance in the high-temperature spraying process, the drying and curing speed is high, and performance is stable.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to a novel high-efficiency and environment-friendly metal passivation solution and a preparation method thereof. Background technique [0002] When metal is directly exposed to the air, it is easy to oxidize under the action of acid and water vapor, that is, rust. Usually, in order to improve its corrosion resistance and aesthetic performance, it needs to be electroplated or hot-plated on its surface. However, since the coating has not been sealed, it is exposed to the air during storage and transportation or during use. Due to changes in air humidity and temperature, condensation will form on the surface of the coating, resulting in rust or discoloration of the metal, affecting the appearance of the product. rust performance. Therefore, in order to prevent the corrosion of the coating, it is usually passivated to improve its corrosion resistance. However, existing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/44
Inventor 赵月华秦磊
Owner CHANGSHU FENGFAN POWER EQUIP
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