How Should Galvanized Coil Be Maintained?

After receiving the galvanized coil, we cannot use them all at once due to the huge quantity purchased at one time. The vast majority of cold-rolled sheets need to be stored in warehouses first. When we choose to keep the rolling site or warehouse, we should try our best to choose a place with clean environment, ventilation, and unobstructed drainage. Try to keep away from plants that may produce harmful fumes or dust. Due to the high humidity around the place where there are plants, the rolled steel plate is prone to rust for a long time in such an environment.

Galvanized coil maintenance is a very simple but very important job. If this job is done well, the product's service life can easily be extended. The maintenance method is done well and facilitates the operation of the machine compared to the practice of repairing or replacing it when it breaks down. Under normal working conditions, the thickness of the galvanized layer of the hot-dip galvanized coil is greater than 50um, which can be used safely for 30 years. This is the principle of anodic protection based on the iron matrix. This hot-dip galvanized sheet makes the pure zinc layer form a dense protective film in the atmospheric environment to prevent zinc from corroding.

The main difference between the different galvanizing methods is what can be done to improve the quality of the galvanizing after the steel pipe has been pickled. In actual production, hot-dip galvanizing is usually used, mainly because the electro-galvanizing technology is relatively complicated. For some special needs, the method of electro-galvanizing is adopted. Introduction to the electro-galvanizing method of seamless steel pipes After the production of seamless steel pipes is completed, we will galvanize the seamless steel pipes. Galvanizing can not only increase the appearance of seamless steel pipes, but also has a certain protective effect, and can kill two birds with one stone.

The corrosion resistance of galvanized coil is very good because the surface layer of the passivation film has a stable oxide layer on its surface, the oxide layer exists naturally, and the service life is longer. However, to maintain its gorgeous finish and durability, galvanized coils must be cleaned and maintained regularly. Please use professional spray and cleaning tools. When cleaning the surface of the galvanized coil, be careful not to scratch the surface. Avoid bleach and abrasive cleaning fluids, steel balls and abrasive tools. After removing the cleaning fluid, clean the surface with clean water. The dust and dirt on the surface of the galvanized coil are easy to remove, and the soap and detergent are weak or washed with warm water.

When using emulsion, you can not only use emulsion but also add additives to the emulsion to improve performance, so that the lubricant can form a network adsorption film on the metal surface, so as to ensure the quality of the galvanized steel strip on the surface of the emulsion, so that it has a good performance in future use Certain toughness and compressive strength. Since the polar molecules in the emulsion have a large adsorption force on the metal surface, the additive improves the rolling performance of the emulsion on the one hand and ensures rolling stability. Galvanized coil appear on the surface of hot-dip galvanized sheets, that is, those small and rough particles that are not smooth, not only affect the appearance but also affect the use.