Product overview
This process belongs to nickel free phosphating process of steel, which is specialized in phosphating treatment of high carbon steel (steel wire rope, steel strand, spring steel) before cold plastic deformation processing.
The process is mainly through the phosphorous saponification reaction, the phosphorous saponification film with excellent lubricity is formed on the surface of the wire, so that it can carry out efficient continuous drawing treatment.
The main products are yx-518, yx-508, yx-600 and yx-801, respectively.
Product features
Environmental protection: no addition of nickel, copper, manganese and other metal elements, no addition of fluoride ions
Dense phosphating coating: the coating is fine and dense, with good adhesion, and can reduce the mold cost by 50%
Company profile
Yingxing Metal Surface Treatment Materials Co., Ltd. is a national high-tech enterprise integrating R & D, production and sales. It was established in Shenzhen in 1998, Xiamen Branch in 2002, Kunshan Branch in 2010, and moved in early 2011. Enter Dongguan Songshan Lake High-tech Industrial Park. Passed ISO9001: 2015 quality management system, ISO14001: 2015 environmental management system and ISO45001: 2018 occupational health and safety management system certification.
The company specializes in the production of phosphating series products for cold plastic processing. The products are for cold heading steel, tool steel, spring steel and other materials, and serve for cold plastic processing enterprises such as wire drawing, tube drawing, and cold stamping.
Process introduction
1、Overview of phosphating
Phosphating belongs to the pretreatment process of metal surface. Yingxing's phosphating products focus on the field of cold plastic deformation processing.
First of all, the metal enters the phosphoric acid tank after a series of processes of acid pickling and water washing. In the phosphoric acid tank, the surface of the metal reacts with phosphate to form a phosphating film which is insoluble or insoluble in water. Then through the subsequent saponification reaction, a protective film with good ductility and lubricity is formed on the metal surface.
The main function of phosphating film is to improve the cold plastic deformation processing ability of the material, so that it can effectively carry out subsequent drawing and cold heading forming, and produce qualified metal products such as fasteners, auto parts, strong shrinkage parts and standard parts.
2. Process flow
Pickling → pickling → pickling → washing with high pressure water → washing → washing → activation → phosphating → washing → saponification
3. Process characteristics
3.1 quantify various parameters in the process, including pH value and conductivity of water, iron ion and concentration of hydrochloric acid, total acidity and free acidity of phosphating tank, temperature and accelerator, alkalinity, temperature, sugar content and oil content of saponification tank.
3.2 timely monitor data and implement scientific data management to ensure product quality.
Songshan Lake, Dongguan City, Guangdong Province 
