Rolling plastic processing and coating technology for anti-corrosion storage tanks

Anti corrosion storage tanks can be produced and processed in small batches because the molding process of rotational molding is not affected by any external force, so the molds used for manufacturing will be relatively more expensive, and correspondingly, their prices will be relatively low. Therefore, the entire manufacturing and processing process is more convenient.

In addition, the rotational molding equipment used in the production of anti-corrosion storage tanks is generally quite mobile. Even with the same rotational molding machine, not only can larger molds be installed, but also many smaller molds can be installed. It can not only mold parts of different sizes, but also process products of different shapes, but the products must use the same raw materials and have exactly the same thickness.

If rotational molding is used for anti-corrosion storage tanks, the molding process can easily cause color changes in the product. This is because rotational molding mainly involves pouring the material directly into the mold, so that all the materials will be completely mixed together and undergo a one-time molding process. Therefore, when we need to change the color of the product, it will not cause too much waste of raw materials and can save time for cleaning machinery and molds.

However, if multiple small molds are used for rotational molding processing, the same plastic product can still be used in different molds, and then different colors can be added one by one. Simply add materials of different colors, which can quickly roll mold products of different colors, saving time and effort.

In addition to the manufacturing process of anti-corrosion storage tanks, their coating is also important, which enables anti-corrosion storage tanks to be used as the main basic equipment in industries such as chemical and petroleum. The coating of anti-corrosion storage tanks can be used under harsh conditions or within certain temperature ranges. Even if used inside media such as alkali, solvents, acids, and salts, it can be used for at least five years.

Under normal circumstances, the coating of anti-corrosion storage tanks can reach a film thickness of 100-150 μ m, but heavy-duty anti-corrosion coatings have a thickness of over 300 μ m, and some can even reach up to around 2000 μ m. The bonding force between the substrate and the coating is very strong because the coating contains hydroxyl groups in its composition, which can form chemical bonds and provide high bonding under the promotion of coupling agents.

The entire coating also has repairability, and local scratches caused by external forces can still be protected accordingly. Moreover, the coating will not be damaged by cutting and welding, and even if it is welded with a coating, it will not affect the quality of the welding.