In the auto parts industry, phosphating solution often meets customers who hope that I can solve the problem of seamless steel pipe welding derusting. From a scientific point of view, it is better to use phosphoric acid for derusting, but the increase of cost is also unacceptable to many manufacturers. Recently, the use control of hydrochloric acid sulfuric acid by the state has become a big problem for the majority of processing households and manufacturers, so we can't wait to solve it The problem of replacing phosphoric acid is that hydrochloric acid and sulfuric acid are the only acids with rust removing function and low cost. Phosphoric acid has higher cost and better effect. In order to replace phosphoric acid, achieve the expected good effect and reduce the cost, we have to rely on new technology products! In many processing enterprises, sand blasting, degreasing and phosphating process have been adopted for a long time, but for the surface with complex process, sandblasting can not achieve the expected effect. Especially for the crack corrosion, it can not be solved at all. To solve this problem, it still depends on pickling.

Phosphoric acid heating can overcome some problems, but high cost and energy consumption must be considered. At present, China's small auto parts industry, even the basic pre-processing knowledge is not mature, and equipment investment can not be achieved. Therefore, we can only rely on the development of science and technology and high-tech products.

In fact, enterprises can start from improving technology and equipment, replace backward technology with advanced equipment, and replace high labor cost with advanced equipment. So as to enable enterprises to enter into environmental protection, safety, efficient production capacity as soon as possible.