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Additive for heat zinc coating auxiliary agent

A technology of additives and fluxing agents, applied in hot-dip plating process, coating, metal material coating process, etc., can solve the problems of difficult post-treatment of plating fluxes, cumbersome operation, unsatisfactory effect, etc., and achieve improved fluxing effect, improved surface quality, good interfacial wetting and compatibility

Inactive Publication Date: 2008-02-20
陈冬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these two patents have improved the fluxing process, they both have problems such as unsatisfactory effects, difficulties in post-treatment of fluxing agents, and cumbersome operations.

Method used

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  • Additive for heat zinc coating auxiliary agent
  • Additive for heat zinc coating auxiliary agent

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Take 500g of dodecyltrimethylammonium bromide, 100g of isopropanol, and 350g of deionized water in a reaction vessel with a heating device, heat and stir at 50°C for two hours, cool down to room temperature and use deionized water Set the volume to 1 liter and stir evenly to obtain this additive.

[0022] Add 5ml of this additive to 500ml of flux consisting of 30% ammonium chloride + 40% zinc chloride, stir evenly, dip a clean glass piece (40mm*60mm) in the above uniform mixture and take it out . There will be a very uniform attachment on the glass sheet without water droplets. After drying with a hair dryer, an extremely uniform snowflake-like salt adhesion layer will be seen, and the glass dipped in the mixed solution without this additive Sheets cannot form a uniform liquid film.

[0023] The present invention once carried out experiment in hot-dip galvanizing factory spot. Take 8 kg of the additive of the present invention and add it to 600 kg of fluxing agent co...

Embodiment 2

[0025] Take 100g of dodecyldimethylethylammonium bromide, 30g of isopropanol, 120g of fatty alcohol polyoxyethylene (9) ether, and 280g of deionized water and place them in a reaction vessel with a heating device. Stir under heat preservation for 2 hours, lower to room temperature and dilute to 1 liter with deionized water, and stir evenly to make an additive.

[0026] According to field experiments of hot-dip galvanizing, the surface quality of the galvanized layer formed by adding the present invention is good, and there are no missing plating and zinc explosion phenomena.

Embodiment 3

[0028] Take 800g of cetyltrimethylammonium bromide, 160g of isopropanol, 80g of alkylphenol polyoxyethylene (10) ether, and 400g of deionized water and place them in a reaction vessel with a heating device. Insulate and stir for two hours, lower to room temperature and dilute to 1 liter with deionized water, and stir evenly to make additives.

[0029] Field experiments on hot-dip galvanizing show that the surface quality of the galvanized layer formed by adding the present invention is good, there is no phenomenon of missing plating and galvanizing, and the surface of the galvanized layer is uniform and beautiful.

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Abstract

The invention provides an additive used in hot-dip galvanizing assistant plating agent, belonging to the technical field of metal material plating. The invention is used for solving the problem of assistant plating efficiency. The technical proposal of the invention is that the additive is a de-ionized water solution; the water solution contains cation surface active agent and organic solvent of the long chain alkyl; the content of the long chain alkyl cation surface active agent is 100 to 800 gram per liter; the organic solvent can be ethanol, isopropyl alcohol, acetone or one of nickel and N-dimethyl formamide, with adding content of 30 to 160 gram per liter. The invention has the advantages that the assistant plating agent is made and the made element have a plating face with excellent wettability and compatibility, which can increase the activity and the utilization rate, improve the assistant plating efficiency, prevent plated element from escaping, prevent the plated element which is assistant plated from being secondarily oxidized in air, reduce zinc slag, prevent the zinc liquid from splashing and increase the surface quality of the made element. Furthermore, the invention can be directly added into the assistant agent, and then is evenly mixed, with the character of easy operation. The invention is not limited by the temperature of the assistant plating agent so that the invention can be used under room temperature.

Description

technical field [0001] The invention relates to an additive for a plating flux used in a hot-dip galvanizing process, and belongs to the technical field of metal material plating. Background technique [0002] At present, in the batch hot-dip galvanizing process, most of them adopt the solvent method, and the flux method is indispensable as a pre-treatment process of hot-dip galvanizing. This process is the process of immersing the workpiece after pickling and rinsing into the flux, and then forming a thin layer of zinc ammonium chloride salt film on the surface of the workpiece. The effect of plating aid not only directly affects the quality of the coating, but also has a greater impact on the cost of zinc consumption. In order to better solve the problems encountered in the fluxing flux, people have carried out extensive research and development, such as the Chinese patent CN1476487A, named "flux and method for hot-dip galvanizing", invented a Flux and method, adding a k...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C2/02C23C2/06
Inventor 陈冬刘汇玲李秀峰金向雷
Owner 陈冬
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