How to correctly choose the substrate and color film of coated steel plate
How to choose coated steel plate is an important problem in use, to avoid causing waste or material properties can not meet the requirements of use
Hot plated steel plates have many uses in construction. In order to further improve the corrosion resistance of hot-dip galvanized steel plate, the surface zinc layer is not directly in contact with the air, and increase the surface coloring, so that it can be coated
That is, according to the use of different, must choose the appropriate substrate and color film, using the appropriate coating method, in order to produce in line with the performance requirements of the coated steel plate
The selection of general coated steel plate can be carried out according to the following aspects:
the selection of substrate (substrate strength, galvanized amount and surface finishing, etc.)
the choice of color film (color, performance and use of color film)
Substrate selection:
The substrate can be cold-rolled substrate, electroplated zinc substrate, hot-dip galvanized substrate and aluminum plated zinc steel plate, but it is necessary to choose suitable mechanical properties of materials according to different uses
Electroplated zinc substrate
The coated steel plate of zinc plating substrate, because of the protection of zinc layer, corrosion resistance is higher than that of cold rolled substrate, because of the thin zinc layer (generally containing zinc content of 20g/m2) its processing performance is better than that of hot dip galvanized.
In the production of corrosion resistance requirements of the products and components, can consider the selection of Galvanized Steel as the substrate of the laminating board. Such as the internal and external components of air conditioning, washing machine or refrigerator shell; Interior decoration with walls, furniture, lighting equipment, signs, etc.
Hot dip galvanized substrate
Hot dip galvanized substrate can be selected according to the amount of galvanizing, zinc layer shape and surface finishing.
galvanized amount
According to the use of different environmental selection of different galvanized amount, for the coating of hot galvanized plate galvanized amount is usually 180 g/square meter (double-sided), in industrial and coastal areas the best choice of 275 g/square meter (double-sided) galvanized amount.
zinc layer morphology surface finishing
The formability of zinc-ferroalloy hot-galvanized sheet is worse than that of ordinary hot-galvanized sheet, so ordinary hot-galvanized sheet is generally used as the base plate. Usually ordinary zinc flowers, small zinc flowers and no zinc flowers of hot galvanized sheet can be used as a substrate, in order to change the surface condition of hot galvanized sheet, so that it is suitable for coating, generally after leveling (or smoothing) and tension straightening. Color film selection
Color film types generally according to the use of the product, use occasion, processing degree to choose. Generally used in the construction of coated steel plate with PVC color film, used in household appliances with PET, aluminum foil, PVC film, there are special performance requirements can also choose antibacterial film, fire film, etc.
Generally, it can be selected according to the standard grain of the manufacturer, which can shorten the workload in the early stage of production. If you need special color, can also be developed and customized.
