What are the factors that affect the oxidative discoloration of phosphor bronze rods? For this question, many friends don't know much about this metal, so they don't know how to answer it for a while, but it doesn't matter. I believe that after reading the text sharing below, answering this question will be very easy. .
There are many factors that cause the oxidation and discoloration of phosphor copper rods, such as the interference of moisture in the air. Japan's Koizumi and Roy have different use of negative electrode lithium alumina and electrical measurement technology. It has been scientifically studied that moisture in the body affects the surface air of phosphor copper rods. The harm of oxidation, its experiments consistently show that the environmental humidity has a great promotion effect on the production of protective film. Under high environmental humidity, the development speed of air oxide film is much larger than that of gas, and the volume of air oxide film is calculated. less than half. Therefore, it is reasoned that the oxide film produced in humid air has internal defects similar to the porous structure. Such defects reduce the high density of the air oxide film and reduce the basic defense.
The interference of surface environmental pollution will also lead to oxidation and discoloration of phosphor copper rods. The environmental pollution on the surface layer has a very large redox reaction on the surface layer of the copper rod. Even mild environmental pollution such as finger prints will cause the surface layer to quickly fade. This is mainly due to the saturation of environmental pollution and the reduction of vapor pressure. Good for producing shrinkage water.
Of course, the interference of residual gas in the natural environment will also cause oxidation and discoloration of phosphor copper rods. Experiments have shown that when the composition of SO2 in the air is less than or equal to 100PPM, only the air velocity RH is less than 60%, and the color fading is not much. However, it should be noted that when the RH is greater than 60%, the rate of erosion is significantly accelerated, and the air oxidation of copper is catalyzed to produce CU2O.
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