E-mail: xindongrui@sjzdr.com

Home  >  News

Why Do Aluminum Profiles Need Powder Spraying?

Oct. 22, 2018

The aluminum profiles are familiar to many people, but many people may not know why aluminum profile pipe manufacturers should spray powder on aluminum profiles. Let's take a look!

Aluminum profiles have been widely used in doors, windows and curtain walls of buildings for many years due to their small specific gravity, easy processing and high mechanical strength. Aluminum is a relatively active light metal with a silvery white luster. Its corrosion resistance has the following two characteristics.

1. The higher the purity, the better the corrosion resistance, it mainly because pure aluminum reacts with oxygen in the air to produce a thin and dense natural oxide film on the aluminum surface, which is faster and thicker than other metal oxide films. , thereby preventing further corrosion of harmful gases and moisture in the air, thereby protecting;

2. Aluminum profiles have high mechanical strength but low corrosion resistance. Although the corrosion resistance of pure aluminum is good, the mechanical strength is poor, this restricts the application of aluminum to a certain extent. For this reason, people add appropriate amounts of other metals such as magnesium, copper, zinc, etc. to aluminum to make various types. The aluminum alloy greatly improves the mechanical strength of aluminum, and the application range is greatly expanded, but the corrosion resistance is inferior to that of pure aluminum, and thus it may be corroded by oxidation. This requires the powder coating to protect the aluminum alloy profile.

We are China OEM aluminum profiles supplier, welcome to consult. In addition, we also have OEM aluminum electronic heat sink for sale. 

China OEM Aluminum Profiles Supplier

Contact Us
Follow Us

Skype Skype Skype Skype Mobile E-mail