Knowledge

29Apr, 2025

Corrosion Behavior of Zinc Coatings in Acidic/Alkaline vs. Neutral Atmospheres
The corrosion mechanisms of zinc coatings exhibit significant differences between acidic/alkaline environments and neutral atmospheres. Generally speaking, in neutral atmospheres w
29Apr, 2025

Methods to Remove White Rust
(1) For fresh white-colored "white rust": Rinse the affected area with water Wipe the zinc coating dry with a soft cloth Apply a paste made of talcum powder and caustic s
29Apr, 2025

Methods to Prevent White Rust Formation
(1) During stacking, the surface of galvanized steel pipes must be free from condensation and residual heat; (2) Ensure proper ventilation in storage facilities, with air humidity
28Apr, 2025

White Rust on Galvanized Coatings
White rust forms when a layer of condensed water adhering to the surface of the galvanized coating interacts with oxygen, carbon dioxide, hydrogen sulfide, sulfur dioxide, chemical
28Apr, 2025

Electrochemical Corrosion
Corrosion resulting from electrochemical interactions between metals and electrolytes is termed electrochemical corrosion. During the process of electrochemical corrosion, electric
28Apr, 2025

Chemical Corrosion
Corrosion caused by direct chemical reactions between metals and the surrounding medium is termed chemical corrosion. For example, the reaction between iron and oxygen in the air r
28Apr, 2025

Corrosion of Metals
The phenomenon of metal damage caused by chemical or electrochemical interactions with the surrounding environment is termed metal corrosion. Rusting represents the most common for
28Apr, 2025

Corrosion Phenomena of Hot-dip Galvanizing
include but are not limited to metallic corrosion, chemical corrosion, electrochemical corrosion, etc.
27Apr, 2025

Zinc-Nickel Alloy
Zinc-nickel alloy is a metallic material composed of zinc and nickel in specific proportions. The addition of zinc-nickel alloy offers the following benefits to hot-dip galvanizing
27Apr, 2025

Zinc-Aluminum Alloy Ingots
Zinc-aluminum alloy ingots are thin blocks cast by co-melting specified amounts of pure zinc and pure aluminum. In hot-dip galvanizing production, directly adding pure aluminum to
27Apr, 2025

Potassium Dichromate and Sodium Dichromate
Potassium Dichromate (K₂Cr₂O₇) Commonly known as potassium bichromate or red prussiate of potash. It appears as orange-red triclinic or needle-shaped crystals, with a melting point
27Apr, 2025

Chromic Anhydride and Chromic Acid
Chromic acid (CrO₃), also known as chromium trioxide or chromic anhydride, is a reddish-brown flake-like crystal with a melting point of 197°C. It is highly deliquescent and po

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