The moisture contained in colored steel tiles can reduce their compressive strength, resulting in the deformation we see. Therefore, the drying treatment of colored steel tiles is a very important step in production engineering. So, what are the most commonly used drying and polishing methods

常用的烘干方法是用自己建的土窑对彩钢瓦的原材料进行烘干处理，减少对于成品烘干的成本。

The commonly used drying method is to use a self built earth kiln to dry the raw materials of colored steel tiles, reducing the cost of drying the finished products.

因为土窑是采用人工烧炕的方式加热，温度不均匀，经常会出现一部分已经烤干了，而有的还存在许多水分，也没有控制好开裂和变形的几率。所以除了要进行次的蒸汽烘干以外，在加工之前还要进行第二次的微波烘干，是的水分可以从里往外均衡蒸发。

Because earthen kilns are heated by manually burning kang, the temperature is uneven, and often some parts have already dried, while some still have a lot of moisture, and the probability of cracking and deformation is not well controlled. So in addition to the first steam drying, a second microwave drying is also necessary before processing, so that the water can evaporate evenly from the inside out.

彩钢瓦在施工的时候，需要对彩钢瓦进行打磨，其目的是保持它的美观性，保证施工的性。对于它的打磨方式分为干打磨、湿打磨和机械打磨3种：

During construction, colored steel tiles need to be polished to maintain their aesthetics and ensure construction safety. There are three types of polishing methods for it: dry polishing, wet polishing, and mechanical polishing:

1、机械打磨

1. Mechanical polishing

彩钢瓦大面积施工时，为了提高工作效率，可采用机械打磨方法，如电动打磨机，有圆盘式和振动式。

During the large-scale construction of colored steel tiles, in order to improve work efficiency, mechanical polishing methods can be used, such as electric polishing machines, which have disc type and vibration type.

2、干打磨

2. Dry polishing

采用砂纸进行打磨，适用于硬而脆的漆种的打磨，这种对彩钢瓦进行打磨的缺点是操作过程中将产生很多粉尘，影响环境卫生。

The use of sandpaper for polishing is suitable for polishing hard and brittle paint. The disadvantage of this method of polishing colored steel tiles is that a lot of dust will be generated during the operation, which affects environmental hygiene.

3、湿打磨

3. Wet polishing

用水砂纸蘸水或肥皂水打磨彩钢瓦，水磨能减少磨痕，提高涂层的平滑度，并且省砂纸、省力，但水磨后应注意喷涂下层油漆时，一是要等水磨层完全干透后才能涂下层油漆，否则漆层很容易泛白，另外吸水性很强的底材也不宜水磨。

Grind the colored steel tiles with sandpaper dipped in water or soapy water. Water grinding can reduce grinding marks, improve the smoothness of the coating, and save sandpaper and labor. However, when spraying the lower layer of paint after water grinding, it should be noted that the first step is to wait for the water grinding layer to completely dry before applying the lower layer of paint. Otherwise, the paint layer is prone to whitening, and the substrate with strong water absorption is also not suitable for water grinding.