Aluminum profile chromate-free passivation agent

Abstract

The invention provides an aluminum profile chromate-free passivation agent. The chromate-free passivation treatment agent includes, by weight percent, one or more of hexafluorozirconic acid, hexafluorotitanic acid, zirconium tetrafluoride, potassium fluozirconate and fluosilicic acid, water soluble phenolic resin, carboxymethyl cellulose, a silane coupling agent, sodium nitrate, an alkaline adjusting agent, a rare earth additive, an auxiliary and deionized water. The auxiliary is one or more of a stabilizing agent, a pH adjusting agent, a thickening agent, a leveling agent, a coalescing agent, a wetting agent and an antioxidant. The metal surface treatment agent is used for treating a metal product, the antirust performance of the product can be obviously improved, especially, the surfaces of aluminum and aluminum alloy products can be treated.

Description

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AI Technical Summary

Benefits of technology

This patented technology improves on rust prevention by adding an organic substance called acids or salts onto metals before they're used during manufacturing processes like plating or painting. These agents help protect them from corrosion caused by water vapor without affecting their appearance quality. Additionally, these techniques reduce costs compared to traditional methods while maintaining effective protection against rust formation over longer periods.

Problems solved by technology

This patented describes different ways to improve the efficiency at cleaning metallurgeous materials like zinc or magnesium by reducing harmful chemical compounds called hexavalents during its production processes. These techniques include applying an oxidizing solution before removing any unwanted coatings, adding organics to neutralise certain substances found within these layers, controlling pH levels through adjustments made based upon factors like temperature, humidity, time, and solvent content, and utilising special paints without generating excessive amounts of hazard gas emissions. Additionally, some manufacturers require specific types of chrome-based rust prevention solutions due to increasingly strict regulations related to environment protection issues.

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