The Surface Pretreatment of Aluminum Strip 1mm
The aluminum strip 1mm is mainly used for processing parts that require good forming performance, high corrosion resistance, or good weldability. Aluminum strip is widely used in used in the manufacture of aircraft fuel tanks, oil pipes, as well as sheet metal parts of transportation vehicles and ships, instruments, street lamp brackets and rivets, hardware products, etc.
1 mm aluminum strip is an aluminum deep-processed product through aluminum col slitting, which is an important raw material in industry. The surface pretreatment of aluminum strip is mainly degreasing and rust removal.
The main purpose of the surface treatment is to clean the dust, oil or rust on the material, and to ensure the quality of the later anti-corrosion layer production and etching, so pretreatment is very important.
Generally speaking, the corrosion spots on the aluminum strip surface after pretreatment includes the following reasons:
1. The concentration of aluminum ions in the solution is high due to the repeatable use of solution. Part of the solution should be drained and new solution should be added after sever times of use.
2. After the 1 mm aluminum strip goes through the degreasing process, the interval between the transfer to the cleaning process is too long. Because after degreasing, there may be residual chemical components on the surface. If it is not washed as soon as possible, it will react with the material and cause corrosion points.
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