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Multifunctional plating assistant agent used for hot dipping

A plating flux, multi-functional technology, applied in hot dip plating process, coating, metal material coating process, etc., can solve the problems of large smoke, affecting the operating environment of the galvanizing process and the surrounding ecological environment, etc., to improve the coating layer. quality, the effect of improving the plating effect

Inactive Publication Date: 2009-11-11
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Zinc chloride + ammonium chloride flux has been widely used by hot-dip galvanizing companies, but a large amount of smoke and dust are generated above the zinc bath during use, which affects the operating environment of the galvanizing process and the surrounding ecological environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: get fluorocarbon surfactant such as potassium perfluorooctane sulfonate 2.5Kg, hydrocarbon surfactant n-decyl sodium sulfate 2.5Kg, zinc chloride 400Kg, sodium chloride 500Kg, potassium chloride 200Kg, fluorine Sodium chloride 50Kg, 10000L tap water at a temperature of 50°C is prepared as a plating flux solution, and it is fully stirred evenly. Immerse 480Kg of 75×75×6 angle steel with a length of 400mm after degreasing, pickling, derusting and rinsing into the fluxing solution. After the angle steel is taken out of the fluxing solution, it is dried on a drying bed at a temperature of 120°C for 8 minutes, and then the angle steel is immersed in zinc Galvanized in the bath, there was no zinc explosion during immersion, and a small amount of smoke was generated on the surface of the zinc liquid during immersion, and black carbides emerged from the surface of the zinc liquid after immersion for 1 minute; after the angle steel was taken out of the zinc liquid a...

Embodiment 2

[0021] Embodiment 2: get fluorocarbon surfactant such as N-propyl perfluorooctyl sulfonyl quaternary ammonium iodide 3Kg, hydrocarbon surfactant such as alkyl alcohol amide phosphate 5Kg, zinc chloride 2000Kg, sodium chloride 300Kg , Sodium fluoride 100Kg, 10000L tap water at a temperature of 50 ℃ is made into a plating flux solution, and it is fully stirred evenly. Immerse 500Kg of 45×45×4 angle steel with a length of 400mm after degreasing, pickling, derusting and rinsing into the fluxing solution. After the angle steel is taken out of the fluxing solution, it is dried on a drying bed at a temperature of 120°C for 8 minutes, and then the angle steel is immersed in zinc Galvanized in the bath, there was no zinc explosion when immersed, and there was a small amount of smoke on the surface of the zinc liquid during immersion, and black carbides appeared on the surface of the zinc liquid after dipping for 1 minute; after the angle steel was taken out of the zinc liquid and cooled...

Embodiment 3

[0022]Embodiment 3: get fluorocarbon surfactant such as N-propyl perfluorooctyl sulfonamide 6Kg, hydrocarbon surfactant such as nonylphenol polyoxyethylene ether (OP-10) 4Kg, zinc chloride 900Kg, chlorination Potassium 400Kg, sodium fluoride 150Kg, 10000L of tap water at a temperature of 50°C are prepared as a plating flux solution, and fully stirred evenly. After degreasing, pickling, derusting and rinsing, 480Kg of 45×45×4 angle steel with a length of 360mm is immersed in the fluxing solution. After the angle steel is taken out of the fluxing solution, it is dried on a drying bed at a temperature of 120°C for 7 minutes, and then the angle steel is immersed in zinc. Galvanized in the bath, there was no zinc explosion during immersion, and a small amount of smoke was generated on the surface of the zinc liquid during immersion, and black carbides emerged from the surface of the zinc liquid after immersion for 1 minute; after the angle steel was taken out of the zinc liquid and ...

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Abstract

The invention provides a multifunctional plating assistant agent used for hot dip plating, belonging to the technical field of the surface plating technique of steel and iron materials. The technical proposal is as follows: the aqueous solution of the plating assistant agent has the following components of zinc chloride, sodium chloride, potassium chloride, sodium fluoride and a composite surface active agent synthesized by fluorocarbon and hydrocarbon surface active agents with the respective proportion in sequence of 40 to 200g / L, 20 to 50g / L, 20 to 60g / L, 0 to 50g / L, 5 to 30g / L, 0.5 to 5g / L, and the balance of water. The plating assistant agent can improve the plating assistant effect of the plating assistant on the surface of the steel and iron part, prevent the steel and iron part after plating assistance from being oxidized secondarily in air, improve the quality of the surface plating layer of the steel and iron, does not generate zinc burst when in hot dip plating, reduces the dust amount generated by zinc bath surface when in hot dip plating, not only is suitable for hot dip plating, but also is suitable for hot dip aluminium plating.

Description

technical field [0001] The invention provides a special multifunctional plating flux for hot-dip plating, which belongs to the technical field of surface plating of iron and steel materials. Background technique [0002] Flux plating is the process of immersing the pickled steel parts in a zinc ammonium chloride flux with a certain composition, and then forming a thin layer of zinc ammonium chloride salt film on the surface of the steel parts. The fluxing of the fluxing agent can play two roles: (1) clean the surface of the iron and steel parts, remove the iron salt or oxide remaining on the surface of the iron and steel parts after pickling and cleaning, A layer of salt film is deposited on the surface of the steel parts, which can prevent the steel parts from secondary oxidation in the air during the period from the fluxing pool to the zinc pot; (2) make the steel parts have greater surface activity when entering the zinc bath . [0003] When the temperature is higher th...

Claims

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Application Information

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IPC IPC(8): C23C2/02C23C2/06C23C2/12
Inventor 何明奕赵晓军王胜民刘丽彭增华谭蓉苑振涛罗中保
Owner KUNMING UNIV OF SCI & TECH
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