Ceramic agent for hot galvanized plate and preparation method of ceramic agent

A vitrification agent and zirconium technology, applied in the coating process of metal materials, etc., can solve the problems of unobvious color of vitrification film, instability of neutral salt spray, production and environmental impact, etc., and achieve good corrosion resistance, Variety of metal ions, good corrosion resistance and stability

Active Publication Date: 2014-07-30
JIANGMEN CHENGXIN PRECISION CHEM FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the surface treatment process of hot-dip galvanized sheet before coating, there are traditional phosphating treatment and immature vitrification process. The traditional phosphating process contains heavy metal ions such as phosphorus, nickel, and manganese. There are many phosphating slags, which have a great impact on production and the environment
The vitrification process is not perfect at present. Although the vitrification agent in the prior art

Method used

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  • Ceramic agent for hot galvanized plate and preparation method of ceramic agent
  • Ceramic agent for hot galvanized plate and preparation method of ceramic agent

Examples

Experimental program
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Effect test

example 1

[0037] 1) Weigh 10 parts of sodium fluozirconate, 10 parts of fluotitanic acid, 2 parts of sodium citrate, 2 parts of silane coupling agent KH-5602, 5 parts of sodium nitrobenzenesulfonate, 3 parts of sodium perborate, and 5 parts of cerium nitrate Parts, 3 parts of p-tolylthiourea;

[0038] 2) Add sodium fluozirconate to deionized water accounting for 2 / 3 of the total weight of all raw materials and stir evenly;

[0039] 3) Add sodium citrate to the solution prepared in step 2) and stir until dissolved;

[0040] 4) Add fluozirconic acid to the solution prepared in step 3) and stir until uniform;

[0041] 5) Add silane coupling agent KH-560 into the solution prepared in step 4) and stir until dissolved;

[0042] 6) Add sodium nitrobenzenesulfonate to the solution prepared in step 5) and stir until dissolved;

[0043] 7) Add sodium perborate in the solution prepared in step 6) and stir evenly;

[0044] 8) Add cerium nitrate in the solution prepared in step 7) and stir evenl...

example 2

[0048] 1) Weigh 15 parts of sodium fluozirconate, 10 parts of fluosilicate, 5 parts of nitric acid, 2 parts of sodium citrate, 3 parts of silane coupling agent KH-5603, 5 parts of sodium nitrobenzenesulfonate, and 3 parts of sodium perborate , 5 parts of ammonium vanadate, 3 parts of p-tolylthiourea;

[0049] 2) Add sodium fluozirconate to deionized water accounting for 2 / 3 of the total weight of all raw materials and stir evenly;

[0050] 3) Add sodium citrate to the solution prepared in step 2) and stir until dissolved;

[0051] 4) Add fluosilicic acid and nitric acid to the solution prepared in step 3) and stir until uniform;

[0052] 5) Add silane coupling agent KH-560 into the solution prepared in step 4) and stir until dissolved;

[0053] 6) Add sodium nitrobenzenesulfonate to the solution prepared in step 5) and stir until dissolved;

[0054] 7) Add sodium perborate in the solution prepared in step 6) and stir evenly;

[0055] 8) Add ammonium vanadate in the solutio...

example 3

[0059] 1) Weigh 15 parts of zirconium oxychloride, 10 parts of fluosilicic acid, 5 parts of sulfuric acid, 2 parts of sodium tartrate, 3 parts of silane coupling agent KH-1713, 5 parts of sodium nitrobenzenesulfonate, 3 parts of sodium fluoroborate, 2 parts of ammonium vanadate, 3 parts of ammonium molybdate, 3 parts of propyl sulfide;

[0060] 2) adding sodium zirconium oxychloride to deionized water accounting for 2 / 3 of the total weight of all raw materials and stirring evenly;

[0061] 3) Add sodium tartrate to the solution prepared in step 2) and stir until dissolved;

[0062] 4) Add fluosilicic acid and sulfuric acid to the solution prepared in step 3) and stir until uniform;

[0063] 5) Add silane coupling agent KH-171 into the solution prepared in step 4) and stir until dissolved;

[0064] 6) Add sodium nitrobenzenesulfonate to the solution prepared in step 5) and stir until dissolved;

[0065] 7) Add sodium fluoroborate to the solution prepared in step 6) and stir ...

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Abstract

The invention relates to a ceramic agent for surface treatment before a hot galvanized plate is coated. The ceramic agent comprises the following components in parts by weight: 5-15% of zirconium compounds, 10-20% of acid, 1-2% of complexing agent, 0.1-3% of silane coupling agent, 5-10% of film forming accelerant, 2-3% of stabilizer, 2-5% of colorant, 2-3% of corrosion inhibitor and the balance of water. The ceramic agent provided by the invention can be rapidly formed into an integrated ceramic film at normal temperature; the formed ceramic film is obviously light yellow and is easy to judge whether the ceramic film is formed on the surface of a workpiece or whether the ceramic film is integrated in an industrial production process; in addition, the formed ceramic film is better in corrosion resistance and stronger in stability as comparison with the ceramic film formed by using the currently used ceramic agent.

Description

technical field [0001] The invention relates to a vitrifying agent, in particular to a vitrifying agent used for surface treatment of a hot-dip galvanized sheet before coating. Background technique [0002] At present, in the surface treatment process of hot-dip galvanized sheet before coating, there are traditional phosphating treatment and immature vitrification process. The traditional phosphating process contains heavy metal ions such as phosphorus, nickel, and manganese. There are many phosphating slags, which have a great impact on production and the environment. The vitrification process is not perfect at present. Although the vitrification agent in the prior art has little impact on the environment and has no slag, the color of the vitrification film is not obvious when dealing with hot-dip galvanized sheets, which leads to ineffectiveness in actual production. Before the hot-dip galvanized sheet is painted, it is impossible to distinguish whether the vitrified film...

Claims

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Application Information

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IPC IPC(8): C23C22/06C23C22/34C23C22/40C23C22/44
Inventor 敖永发覃庆敏
Owner JIANGMEN CHENGXIN PRECISION CHEM FACTORY
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