常平表面铁处理

常平表面铁处理

来源: 华宇五金磷化处理厂  作者: 盘先生

A steel surface oxide skin and rust, is a form of iron oxide, it is flaky body thick in the steel surface, mainly generated in the process of high temperature processing. For example, during hot rolling steel in high temperature oxidation, generating a solid iron oxides and iron and steel surface, while thicker films, is a layer of chemical bonding force and metal surface oxidation film layer with high strength. Also the scale in heat treatment and welding for high temperature operation process of steel workpiece. Because the oxide skin and body metal binding capacity of high strength, so to completely remove the difficult, after the general use acid dipping to loose, then rinse off, by mechanical erosion or ultrasonic cleaning method can also.  

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My company has a fully automatic phosphating processing workshop. Has four automation phosphating processing productionline, mainly in zinc phosphate or manganese phosphate, can provide all kinds of high product re Saltfog time is 72 hours. Exterior film uniform, color according to the customers request to make process route.We welcome a society to all circles personage surface treatment industry to our investigation, technical exchanges. Onlylearn from each other to improve yourself. - Shanghai road feng auxiliaries co., LTDThe so-called phosphating is through the chemical reaction and electrochemical reaction in the iron and steel surfacephosphating into contain phosphate coverage of membrane. Simply speaking, Shanghai phosphating processing is the matrixand special potion produce reaction, form their own transformation product. But chemical reaction is the premise of steelworkpieces point higher than the phosphating liquid medicine point.From detail speaking, iron and steel parts and phosphating agent contact in the provision of ph, temperature, acidity,stress, time, solvent situation, through the complex chemical process and electrochemical treatment, in the workpiecesurface formation with a certain thickness 6 kinds of water of crystallization of phosphate salt crystallization and conversion coating layer. This film can make the steel surface from the conductor into insulators to preventsteel rust. Chemical reaction contains phosphating solution hydrolysis and ionization. And oxidation. Linhua fluid andsteel ion mass reduction and precipitation. Electric response because metal surface there are some miniature Yin and Yangpole and stress concentration of local potential than steel hard, forming a micro electric current.Rusted steel parts and phosphatization liquid contacts occur emulsion degreasing, rely on the surface active ingredientsof effect, reduce the surface stress of the reservoir, and the same time permeability in the reservoir of acid radical andrust role, will also accelerate the reservoir from. From the surface of the oily substance was degreasing agent emulsion.In case again gathered into liquid.
 

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