This iron phosphating agent belongs to the technical field of surface chemistry. Specifically, it is a room-temperature phosphating liquid that needs to be pre-treated before surface spraying or painting of metal.
This iron phosphating agent can be soaked, sprayed or wiped according to the size of the workpiece to be processed. The time can be adjusted appropriately to complete the phosphating treatment, and the quality fully meets the requirements.
In iron phosphating agent years, there have been reports on the market for room-temperature phosphating solutions. However, during use, the treatment time is too long, and the acidic substances corrode the steel surface greatly. If it is not serious, it will affect the quality of phosphating. Our iron phosphating agent has a simple composition, no toxic and harmful gases, and strong production suitability, making it more suitable for operations in cold weather in the north.
This iron phosphating agent has the advantages of good stability of phosphating solution, long film-forming time, high film-forming strength, and strong corrosion resistance. This product has a wide range of applications. It can be said that all steel products, including industrial and civil industries, can be used. Such as: air conditioners and radiators and accessories, automobiles and accessories, electrical equipment, etc., and because normal temperature phosphating is not limited by natural conditions, it can save time and energy.
During the implementation of this iron phosphating agent, the above components and parts by weight are diluted at a volume ratio of 15 times, and can be soaked, sprayed or wiped. The specific gravity of the concentrated solution is about: 1.10±0.05. The working fluid parameters after dilution: free acid 1~5, total acid 15~25, operating temperature 5~40 degrees Celsius, phosphating time 3~20 minutes, film weight of phosphating film 3~8g/cubic meter, add 5.5 kg of 10 times concentrated solution to each ton of tank liquid, the total acidity will increase by 1 point, and the free acidity will increase by about 0.2. After adding 5.5 kg of 10 times concentrated solution to each ton of tank liquid in the supplementary amount , the total acidity increased by 1 point, and the free acidity increased by about 0.2.
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