CHLORINATION
Chlorination in metal finishing refers to the use of chlorine-based chemicals or processes to treat metal surfaces for various purposes, including cleaning, surface modification, and corrosion protection.
Chlorination processs
for metal finishing
Chlorination in metal finishing refers to the use of chlorine-based chemicals or processes to treat metal surfaces for various purposes, including cleaning, surface modification, and corrosion protection. Chlorination can involve the use of chlorine gas, chlorine-containing compounds, or electrolytic chlorination methods.
Chlorination in metal finishing refers to the use of chlorine-based chemicals or processes to treat metal surfaces for various purposes, including cleaning, surface modification, and corrosion protection. Chlorination can involve the use of chlorine gas, chlorine-containing compounds, or electrolytic chlorination methods.
Corrosion Protection
Chlorination can be employed for corrosion protection purposes in certain applications. Chlorine-based corrosion inhibitors or passivation treatments are used to form protective oxide or chloride layers on metal surfaces, which act as barriers against corrosive agents.
For example, chlorinated compounds such as chromates or chlorinated rubber coatings are commonly used for corrosion protection in marine and industrial environments.
Cleaning and Surface Preparation
Chlorination is often employed as a cleaning and surface preparation step in metal finishing processes. Chlorine-based cleaners, such as chlorinated solvents or bleach solutions, are effective in removing organic contaminants, oils, greases, and surface oxides from metal surfaces. This prepares the surfaces for subsequent treatment steps, such as plating, painting, or coating.
Surface Modification and treatment
Chlorination can be used to modify the surface properties of metals to improve adhesion, wettability, or corrosion resistance. Chlorine gas or chlorine-containing compounds may be applied to metal surfaces to promote surface activation, etching, or passivation, depending on the desired outcome. Chlorine treatment can create reactive surface sites or oxide layers that enhance the bonding of subsequent coatings or improve corrosion resistance.
technical resources
You’ll find product information, reactive metals information, corrosion charts, calculators and much more in the TITAN Technical Resource Center.
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