Corrosion Of Plate Replacement Of Cooler

Replacing and corroding the plate of the cooler is a more laborious work, and the corrosion will lead to functional degradation and equipment damage. There are many cases of plate replacement corrosion, such as pitting corrosion, crevice corrosion, stress corrosion cracking, intergranular corrosion, uniform corrosion, etc. Here are some examples of corrosion.

Cooler pitting refers to the rust or fouling of metal surfaces such as stainless steel electropolished plates, poor use, and reduced PH value of the medium, which lead to the destruction of the passivation film on some metal surfaces, resulting in partial corrosion. , which is also called blocking battery corrosion, generally manifested as perforations less than 1mm or pits.

Intergranular corrosion of oil coolers originates from the corrosion of the metal surface and deepens into the interior along the grain gap. This corrosion will lead to the loss of the bonding force between the grains, which greatly reduces the strength of the material. Cooler crevice corrosion is a kind of colorful or ulcer-shaped partial corrosion caused by blocking battery corrosion, but this corrosion mainly occurs in the crevices of metal parts, so it is called crevice corrosion. is due to the electrochemical inhomogeneity of the residence medium.