Composition of phosphating solution

Generally, it consists of phosphating slotting agent (phosphating bath agent), phosphating supplement, phosphating regulator and phosphating accelerator, in which the slotting agent and the supplement are the main components: the slotting agent is used for slotting for the first time, and the supplement is used as a supplement after slotting; Phosphating regulator is to adjust the total acid and free acid of phosphating solution to achieve a suitable acid ratio; Phosphating accelerator is an oxidant, which mainly plays the role of depolarization and accelerating phosphating reaction speed.