The deformation of the color steel tile we have seen is mainly due to the moisture contained in the color steel tile which makes its compressive ability drop, so it will present a deformation condition. Therefore, the drying treatment of the color steel
tile is a crucial process in the manufacturing engineering, so what are the commonly used drying treatment and grinding methods.
The commonly used drying method is to dry the raw materials of color steel tile with the earth kiln built by ourselves, so as to reduce the cost of drying products. Because the earth kiln is heated by the method of artificial Kang burning, the temperature
is not uniform, and often some of them have been dried, and some of them still have a lot of water, and there is no chance to control the cracking and deformation.
Therefore, in addition to the first steam drying, the second microwave drying should
be carried out before processing, so that the water can be evenly transpiration from the inside out. During the construction of color steel tile, it is necessary to polish the color steel tile. The intention is to adhere to its beauty and ensure the safety
of construction. There are three methods of grinding: dry grinding, wet grinding and mechanical grinding.
In order to improve the working efficiency, mechanical grinding methods can be selected, such as electric grinder, disc type and oscillating
type. Sand paper is selected for dry grinding, which is suitable for grinding hard and brittle paint. The defect of this kind of grinding is that there will be a lot of dust in the operation process, which will affect the environmental health.
grinding uses abrasive paper dipped in water or soapy water to polish color steel tiles. Water grinding can reduce grinding marks, improve the smoothness of coating, and save abrasive paper and labor. However, when spraying base paint after water grinding,
first, the base paint can only be applied after the water grinding layer is completely dry, otherwise the paint layer is very simple and white, and other base materials with strong water absorption are not suitable for water grinding.