The Cause Of Corrosion Of The Instrument Tube Fitting
The Instrument Tube Fitting is used in the pipe connection or control system. Which is used for the direction of the pipeline changes, the pipeline branch or pipe of different sizes of pipe fittings, the use of the environment than the straight pipe to be harsh, pipe fittings can be used for pipe, sheet, forgings, castings, bars and profiles.
Corrosion is one of the important factors that cause damage to the Instrument Tube Fitting. Therefore, in the protection of the Instrument Tube Fitting, the corrosion of the Instrument Tube Fitting is an important consideration. The corrosion of the Instrument Tube Fitting is caused by what? How to carry out the Instrument Tube Fitting corrosion? Here we listen to one by one.
The main cause of metal corrosion is chemical corrosion and electrochemical corrosion, and non-metallic materials, corrosion is usually caused by direct chemical and physical effects.
1, chemical corrosion around the medium, does not produce the current conditions, direct chemical behavior of the metal and destroy it, such as high temperature drying gas and non-electrolytic corrosion metal.
2, electrochemical corrosion. Metal corrosion, soil corrosion, sea water corrosion, microbial corrosion, stainless steel point corrosion and crevice corrosion, etc., are electrochemical corrosion. It is the main form of corrosion. Electrochemical corrosion occurs not only between two chemically active substances, but also because of the difference in solution concentration, the difference in oxygen concentration in the material structure of the subtle differences in the potential difference, as well as the power to obtain corrosion, the potential Low, metal loss on the board.