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High-efficiency multifunctional batch hot galvanizing acid wash additive and preparation method thereof

A pickling additive and multi-functional technology, applied in hot-dip plating process, coating, metal material coating process, etc., can solve the problems such as few reports on additives, increase technical difficulty, improve working environment, and save investment cost Effect

Inactive Publication Date: 2014-11-05
钱宏彬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although many technical solutions for pickling additives can be retrieved from domestic published literature, there are few reports on additives for batch hot-dip galvanizing pickling process

Method used

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preparation example Construction

[0051] A method for preparing an efficient multifunctional batch hot-dip galvanizing pickling additive, comprising the following preparation steps:

[0052] 1) Prepare 1L high-efficiency multi-functional hot-dip galvanizing pickling additive in batches, select corrosion inhibitor 200-240g / L, fog inhibitor 100-120g / L, iron remover 100-120g / L, chelating agent 100-120g / L , Accelerator 100-120g / L, emulsifier 100-120g / L, and the balance is water.

[0053] 2) Dissolving and mixing the components selected in step 1) uniformly to obtain the additive of the present invention.

[0054] The ratio of the obtained high-efficiency and multifunctional batch hot-dip galvanizing pickling additive to the batch hot-dip galvanizing pretreatment pickling solution is 1:100 by weight.

[0055] When using the obtained high-efficiency and multi-functional batch hot-dip galvanizing pickling additives to prepare the pickling solution for the first time, the acid

[0056] The mass percent con...

Embodiment 1

[0071] Prepare 1L high-efficiency multifunctional batch hot-dip galvanizing pickling additive for 100L pickling solution.

[0072] Take 100g of Lan-826, 50g of dodecylbishydroxyethylmethylammonium chloride, 50g of thiourea, 50g of fatty acid methyl ester sulfonate, 50g of sodium lauryl sulfate, 50g of tartaric acid, 50g of oxalic acid, 100g of HEDP, and 100g of JFC , Tween 60 50g, AEO-9 50g, and the balance is water; first dissolve thiourea, fatty acid methyl ester sulfonate, sodium lauryl sulfate, tartaric acid and oxalic acid, and then dissolve each selected component Uniform mixing is carried out to obtain the pickling additive solution of the present invention. The ratio of the pickling additive of the present invention to the pretreatment pickling solution for batch hot-dip galvanizing is 1:100 by weight. From room temperature to 60°C. After practical application, the corrosion inhibition rate can reach 97.5%, and the fog suppression rate can reach 90%. After the ...

Embodiment 2

[0074] Prepare 1L high-efficiency multifunctional batch hot-dip galvanizing pickling additive for 100L pickling solution.

[0075] Take 100g of heptadecenylamine ethyl imidazoline quaternary ammonium salt, 100g of urea, 40g of rhodine, 60g of sodium α-alkenylsulfonate, 60g of sodium dodecylbenzenesulfonate, 40g of gallic acid, 40g of malic acid, lemon acid 40g, HEDP50g, phytic acid 60g, TX-10 80g, JFC40g, oleyl alcohol polyoxyethylene ether 60g, coconut oil fatty acid diethanolamide 60g, the balance is water; Dissolve sodium, sodium dodecylbenzenesulfonate, gallic acid, malic acid and citric acid respectively, and then uniformly mix the selected components to obtain the pickling additive solution of the present invention. The ratio of the pickling additive of the present invention to the pretreatment pickling solution of batch hot-dip galvanizing is 1:100 by weight, and the mass percent concentration of hydrochloric acid is 15% (15wt.% HCl) when the pickling solution is prepar...

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Abstract

The invention discloses a high-efficiency multifunctional batch hot galvanizing acid wash additive and a preparation method thereof. The high-efficiency multifunctional batch hot galvanizing acid wash additive comprises the following substance components by content: 200-240g / L of corrosion inhibitor, 100-120g / L of fog inhibitor, 100-120g / L of iron remover, 100-120g / L of chelating agent, 100-120g / L of accelerant, 100-120g / L of emulsifier and the balance of water. Carbon steel is pickled in a pickling solution of which the mass percent of HCl is 18 percent at the pickling solution temperature of 60 DEG C, 1 percent of the additive prepared by the preparation method disclosed by the invention is added into the pickling solution, the inhibition rate can be 97.5-98.7 percent, the fog inhibition ratio can be 90-95 percent, steel loss and waste of the pickling solution caused by excessive pickling can be effectively avoided, an operating environment of workers is improved, and corrosion of workshops and equipment and environmental pollution caused by acid mist are effectively controlled. Therefore, the high-efficiency multifunctional batch hot galvanizing acid wash additive has obvious economic benefits and social benefits.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to an efficient multifunctional batch hot-dip galvanizing pickling additive and a preparation method thereof. Background technique [0002] Hot-dip galvanizing has been widely used as an effective method for steel to prevent atmospheric corrosion. Compared with other metal anti-corrosion methods, the combination of physical barrier protection and electrochemical protection of hot-dip galvanized coatings, compactness, durability, maintenance-free, economical, and the impact of hot-dip galvanizing on the shape and shape of steel parts The adaptability of size and high efficiency of production capacity have irreplaceable advantages. [0003] In addition to continuous hot-dip galvanized products such as galvanized steel sheets, steel pipes and iron wires being widely used in the automotive industry, construction industry and daily civilian products, batch ho...

Claims

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Application Information

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IPC IPC(8): C23G1/08C23G1/06C23G1/04C23C2/02
Inventor 钱宏彬
Owner 钱宏彬
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