7075 aluminum plate manufacturers may have small black spots on the surface in hot rolling treatment, at this time, we need to find out the reasons and solve them. Next, Xiaobian will give you advice.

1.7075 aluminum plate hot rolling needs to use emulsion, in order to ensure the effect of the emulsion should be replaced in time, to avoid the use of expired emulsion.

2. In addition, when 7075 aluminum plate is hot rolled, the equipment that contacts the surface of 7075 aluminum plate should be clean and tidy, and the foreign body pressing on the surface of 7075 aluminum plate should be reduced.

3. In addition, the emulsion box should be in the form of multi-slot, filtration and static, with the purpose of purifying the emulsion.

The solution to the hot rolling of 7075 aluminum plate with small black spots is introduced here. There are a lot of small details that need to be paid attention to. Xiaobian is not a detailed one.