Knowledge

23Oct, 2024

How does zinc coating corrode in distilled water?
Due to the lack of salts capable of forming a protective film in distilled water, its corrosion effect on the zinc coating is significant, second only to rainwater, slightly higher
23Oct, 2024

How does zinc coating corrode in hot water?
Galvanized steel pipes are not only used for tap water but also for transporting lukewarm water, boiling water, steam, and other media, which have different corrosive effects on th
23Oct, 2024

How does zinc coating corrode in cold tap water?
Galvanized steel pipes for water gas (new national standard GB3091-82, known as galvanized welded steel pipes for low-pressure fluid transportation) are mostly used as tap water pi
23Oct, 2024

Why does zinc coating corrode faster in industrial air containing sulfur?
In industrial cities with a high concentration of smoke, the air contains a significant amount of sulfur dioxide and solid particles (which include 30% water-insoluble residue, 33%
23Oct, 2024

What are the causes of corrosion of zinc coatings indoors? What are the corro...
The corrosion of zinc coatings indoors is much lighter than that outdoors due to the absence of rainwater washing, generally reduced by about four-fifths. The main reason for indoo
22Oct, 2024

What are the causes of corrosion of zinc coatings outdoors and what are the c...
The corrosion of zinc coatings outdoors primarily depends on factors such as the nature of the air, humidity, and rainfall. Therefore, outdoor air can be classified into the follow
22Oct, 2024

How does the corrosion behavior of zinc coatings differ in non-acidic/alkalin...
The corrosion behavior of zinc coatings in non-acidic/alkaline atmospheres differs significantly from that in acidic/alkaline atmospheres. Generally speaking, in the absence of aci
22Oct, 2024

Methods to Remove White Rust
(1) If the "white rust" is found to be white in color, it can first be washed off with water, then the zinc layer should be dried with a cloth. After that, apply a slurry
22Oct, 2024

Methods to Prevent White Rust
(1) When stacking, galvanized steel pipes should be free from condensed water and residual heat on their surfaces; (2) The warehouse should maintain good air circulation, and the m
22Oct, 2024

What is the white rust of galvanized coatings? How to prevent and remove it?
When a layer of condensed water adhering to the surface of galvanized coatings reacts with oxygen, carbon dioxide, hydrogen sulfide, sulfur dioxide, chloride compounds, soot partic
21Oct, 2024

What is electrochemical corrosion?
Electrochemical corrosion refers to the corrosion that occurs due to the electrochemical interaction between a metal and an electrolyte. During the process of electrochemical corro
21Oct, 2024

What is chemical corrosion?
Chemical corrosion refers to the corrosion caused by the direct chemical reaction between a metal and its surrounding medium. For instance, the common formation of rust on iron whe

First 52 53 54 55 56 57 58 Last 55/111