No phosphoric acid washing (immersion) - motor cabinet

The phosphoric acid-free washing (immersion) used in the motor cabinet is a process for metal surface treatment, which aims to replace the traditional phosphoric acid washing process. It has the advantages of environmental protection and high efficiency. The following is an introduction to the principle, characteristics, process flow, etc.:

principle

  Non-phosphoric acid washing (immersion) usually uses an acidic solution containing specific organic acids, corrosion inhibitors, promoters and other ingredients to remove impurities such as oil, rust and scale on the surface of metal parts of the motor cabinet. Among them, organic acids play a role in dissolving metal oxides, corrosion inhibitors can inhibit excessive corrosion of the acid on the metal matrix, and promoters can accelerate the speed of the pickling reaction and improve the pickling efficiency.

Features

Environmental advantages: The characteristic of phosphoric acid-free washing (immersion) is that it does not contain phosphorus elements, avoiding the discharge of phosphorus-containing wastewater, thereby reducing eutrophication pollution to water bodies and meeting environmental protection requirements.

Reduce corrosion: Due to the addition of corrosion inhibitors and other ingredients, while effectively removing impurities, the corrosion of the metal matrix can be controlled at a low level, which helps to protect the strength and performance of the metal parts of the motor cabinet and extend its service life.

Good surface quality: The metal surface after non-phosphoric acid washing (immersion) treatment is more uniform and smooth, which is conducive to subsequent surface treatment processes such as painting and electroplating. It can improve the adhesion and corrosion resistance of the coating or plating, thereby improving the overall quality and appearance of the motor cabinet.

Safe operation: The acid solution used in phosphoric acid-free washing (immersion) is less volatile and has less irritating odor than the traditional strong acid washing solution, which reduces the harm to the health of operators and also reduces the corrosion of acid mist to the environment and equipment.