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Novel alkaline cyanide-free zinc plating additive

A galvanizing additive and alkaline technology, which is applied in the field of new alkaline cyanide-free galvanizing additives, can solve the problems of alkaline cyanide-free galvanizing technology lag, brittleness, insufficient depth capability, poor ductility, etc., and achieve small brittleness and brittleness Big, good performance

Inactive Publication Date: 2019-04-05
宁波市鄞州艾博化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a new type of alkaline cyanide-free galvanizing additive suitable for domestic existing process materials for the problems of domestic alkaline cyanide-free galvanizing technology lagging behind, brittleness, insufficient depth capability, poor ductility, and environmental protection.

Method used

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  • Novel alkaline cyanide-free zinc plating additive
  • Novel alkaline cyanide-free zinc plating additive
  • Novel alkaline cyanide-free zinc plating additive

Examples

Experimental program
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Effect test

Embodiment 1

[0032] First configure 1L of additives, wherein the weight ratio of each component is 15% of urea amine cationic quaternary ammonium salt; 10% of imidazole propoxyl condensate; 4% of polyethyleneimine cationic quaternary ammonium salt; 0.8% salt; 1% modified aromatic aldehyde compound; 2.0% EDTA-2Na; 7.5% modified aromatic aldehyde sulfonate; the balance is pure water. First add the calculated amount of pure water into the reaction kettle, then add ureaamine cationic quaternary ammonium salt, imidazole propoxyl condensate, polyethyleneimine cationic quaternary ammonium salt, benzyl nicotinic acid ammonium salt, modified Sexual aromatic aldehyde compounds, EDTA-2Na, modified aromatic aldehyde sulfonates, stirred for 20 minutes until uniform without precipitation.

[0033] Configure 1L of plating solution so that the plating solution contains 10g of zinc oxide, 100g of sodium hydroxide, 10g of sodium carbonate, and 16ml of the above-mentioned additives, the temperature is 25°C, ...

Embodiment 2

[0035]First configure 1L of additives, wherein the weight ratio of each component is 25% of urea amine cationic quaternary ammonium salt; 20% of imidazole propoxyl condensate; 6% of polyethyleneimine cationic quaternary ammonium salt; 1.2% salt; 1.4% modified aromatic aldehyde compound; 2.5% EDTA-2Na; 8% modified aromatic aldehyde sulfonate; the balance is pure water. First add the calculated amount of pure water into the reaction kettle, then add ureaamine cationic quaternary ammonium salt, imidazole propoxyl condensate, polyethyleneimine cationic quaternary ammonium salt, benzyl nicotinic acid ammonium salt, modified Sexual aromatic aldehyde compounds, EDTA-2Na, modified aromatic aldehyde sulfonates, stirred for 20 minutes until uniform without precipitation.

[0036] Configure 1L of plating solution so that the plating solution contains 11g of zinc oxide, 130g of sodium hydroxide, 10g of sodium carbonate, and 18ml of the above-mentioned additives, the temperature is 25°C, a...

Embodiment 3

[0038] First configure 1L of additives, wherein the weight ratio of each component is 17% of urea amine cationic quaternary ammonium salt; 12% of imidazole propoxyl condensate; 4% of polyethyleneimine cationic quaternary ammonium salt; 0.9% of salt; 1.1% of modified aromatic aldehyde compounds; 2.1% of EDTA-2Na; 7.6% of modified aromatic aldehyde sulfonates; the balance is pure water. First add the calculated amount of pure water into the reaction kettle, then add ureaamine cationic quaternary ammonium salt, imidazole propoxyl condensate, polyethyleneimine cationic quaternary ammonium salt, benzyl nicotinic acid ammonium salt, modified Sexual aromatic aldehyde compounds, EDTA-2Na, modified aromatic aldehyde sulfonates, stirred for 18 minutes until uniform without precipitation.

[0039] Configure 1L of plating solution so that the plating solution contains 12g of zinc oxide, 140g of sodium hydroxide, 50g of sodium carbonate, 20ml of the above additives, the temperature is 25°C...

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Abstract

The invention discloses a novel alkaline cyanide-free zinc plating additive. The additive is composed of the following components of 15%-25% of urea-amine cationic quaternary ammonium salt, 10%-20% ofan imidazole propoxy condensation compound, 4%-6% of polyethyleneimine cationic quaternary ammonium salt, 0.8%-1.2% of benzyl nicotinic acid salt, 1%-1.4% of a modified aromatic aldehyde compound, 2.0%-2.5% of EDTA-2Na, 7.5%-8.0% of modified aromatic aldehyde sulfonated substances, and the balance pure water. A plating liquid prepared by the obtained additive has good deep plating and uniform plating performances, the low-brittleness plating is high in brightness and fine and smooth, and the salt spray performance is high; and the deposition speed is quite high, the current efficiency is high, the operation is simple, the control performance is good, and the plating is suitable for hanging plating and rolling plating.

Description

technical field [0001] The invention relates to the technical field of galvanized surface treatment, more specifically, it relates to a novel alkaline cyanide-free galvanized additive. Background technique [0002] Galvanizing electrolytes can be divided into two categories: alkaline and acidic. Commonly used at home and abroad are cyanide-free alkaline galvanizing, cyanide galvanizing, ammonium salt galvanizing, chloride galvanizing, sulfate galvanizing, etc. Acid galvanizing has advantages in electroplating large flat parts and barrel plating due to its good brightness, high efficiency and wide range of bright current density. Cyanide galvanizing has relatively high comprehensive performance, but due to its high toxicity and poor environmental performance, There are still applications only in special industries. Alkaline cyanide-free zinc plating, because the toxicity of the plating solution is relatively small, the waste water is easier to treat, and at the same time, co...

Claims

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Application Information

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IPC IPC(8): C25D3/22
CPCC25D3/22
Inventor 唐依国
Owner 宁波市鄞州艾博化工科技有限公司
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