How to choose the different types of phosphating process
According to the operating temperature, can be divided into high-temperature phosphating, medium-temperature phosphating, low-temperature phosphating. 1) low-temperature phosphating, at room temperature, long processing time, in addition to medium-temperature phosphating has been added to the composition, in order to accelerate the speed of phosphating, but also add fluoride, the advantage of low-temperature work, without heating. The…