1、In terms of environmental protection
Whether traditional phosphating solutions contain heavy metal ions such as zinc, manganese, nickel, and a large amount of phosphorus, or chromium passivation treatment itself contains heavy metals - severely toxic chromium - they do not meet the new requirements of the country for environmental protection in the new era.
2、In terms of consumption reduction
Traditional phosphating will react with metal ions to crystallize and form phosphating slag during the treatment process. Over time, a large amount of phosphating slag will be formed and pushed into the working tank. This not only reduces the quality of the phosphating film, but also increases the replenishment of the phosphating solution. After a period of time, the precipitated phosphating slag must be removed. Whether using a slag removal device or manually flipping the tank for slag removal, it will bring waste and reduce production efficiency.
3、In terms of craftsmanship
Traditional phosphating generally requires surface adjustment agents to adjust the surface of the workpiece before phosphating treatment, and then rinse the workpiece with a large amount of overflow water. But nano ceramic or silane does not require this step at all, reducing both the process flow and cost.
4、In terms of energy conservation
The temperature for traditional phosphating on the production line is generally 30-50 ℃, which requires auxiliary heating equipment and a heat source to heat the phosphating tank, which may be coal, natural gas, or electricity, all of which require cost. On the one hand, it goes against the national call for energy conservation and emission reduction, and on the other hand, it also increases the cost for enterprises.
In the field of metal pre-treatment, national laws and regulations have increasingly strict requirements for environmental protection, and people's awareness of environmental protection is increasing. In the context of increasing attention from enterprises to safety production, usage costs, and other aspects, silane and nano ceramic surface treatment technologies that are phosphorus free, heavy metal free, energy-saving, low emission, efficient, and low consumption are steadily advancing. It gradually replaces traditional phosphating treatments that have defects such as high energy consumption, slow film-forming speed, excessive precipitation, heavy ash deposition, phosphorus and heavy metal ions, high emissions of three wastes, and carcinogens in accelerators.