Degreasing and surface pre-treatment of aluminium sheets for sale Haomei

Degreasing and surface pre-treatment of aluminium sheets for sale Haomei

Anodising is an important process for aluminium sheets. It produces a dense anodic oxide film on the aluminium sheet surface to protect the aluminium alloy substrate and to obtain properties such as corrosion resistance, wear resistance and non-conductivity. There is also a hard anodising process for aluminium alloy anodising. How can the effect of hard anodising on the quality of the oxidised surface be eliminated? On the whole we can divide it into three steps, which are the pre-anodising process, the pre-treatment of the oxidised surface and the pre-treatment of the rough surface. As for their definitions, let's take a look at them together today! Today we will start by understanding together the pre-treatment of the surface of the aluminium sheet before anodising.

What is pre-treatment of oxidised surfaces? Simply put, it is degreasing! It means that before processing the aluminium sheets, certain processing is carried out on the oil surface of the metal, thus making the oil on the surface of the aluminium sheet disappear! In the processing of oiled metal products, the surface of the aluminum sheet metal has a layer of oil or grease which can be divided into two categories, they are saponified oil and saponified oil. Vegetable oils and animal fats can be dissolved and alkali saponification reaction, called saponified oil. Various mineral oils, such as antirust oils, lubricating oils, etc., without saponification reaction, by emulsifying alkali.

And in this case, the commonly used oil removal methods, oil removal with organic solvents, chemical oil removal, electrochemical oil removal and oil removal. After pretreatment of the surface of the aluminium oxide sheet, the oil on the surface of our aluminium sheet products will be removed, thus having a more aesthetically pleasing appearance, and also more fitting to the use needs of all potential users.