Multifunctional assistant plating additive for hot dip plating process, preparation and use method thereof

Abstract

The invention relates to a multifunctional plating assisting additive for a hot dipping metallization process and a preparation and application method thereof, and belongs to the metal material anticorrosive technical field for providing multiple plating assisting efficacy. The technical proposal of the invention comprises that: a plurality of cations or an amphoteric surfactant ( an equivalent concentration of a quaternary ammonium group is between 0.1 and 2 mol / L) and nonionics (an equivalent concentration of a polyoxyethylene group is between 0.5 and 5 mol / L) are dissolved in deionized water. The method can improve the wetting quality between a liquid-state metal and a workpiece, and the adhesive uniformity and continuity of the plating assisting additive, reduces the drying time, prevents the liquid-state metal from falling and splashing, shortens the dipping and plating time, saves raw materials, improves a residue form, reduces an ash content, increases an ash discharge speed, isolates air, stops oxidation, disperses residual dirt and is suitable for a plurality of processes of hot galvanizing, hot plating zinc-aluminum alloy, hot plating aluminum, etc. The preparation steps comprise dissolution, cubage determination, cooling, keeping stand and filling; when the multifunctional plating assisting additive is used, the multifunctional plating assisting additive is directly added into a plating assisting additive solution and is evenly stirred.

Description

technical field [0001] The invention relates to a multifunctional plating aid additive for hot-dip metal plating process and a preparation and use method thereof, belonging to the technical field of metal material anticorrosion. Background technique [0002] Coating other metal or non-metal protective layers on the surface of metal materials can effectively prevent the corrosion of base metal materials. The hot-dip metal plating process, including hot-dip galvanizing, hot-dip galvanized aluminum alloy, and hot-dip aluminum plating, mostly adopts the solvent method. The principle is to immerse the workpiece in the molten metal to be plated, lift the workpiece, and its surface will be ready after cooling. Covered with a thin layer of coating, the corrosion resistance is greatly improved, materials and resources can be saved, and good economic and environmental benefits can be exerted. The quality of the coating directly affects the corrosion resistance. Therefore, before the ...

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Problems solved by technology

These three patents have improved the flux solution, but there are still problems such as unsatisfactory effect, single function, and limited application range.

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