2019年1月30日星期三

Molybdenum Glass Melting Electrodes

Molybdenum glass melting electrodes surface showing the bright silver-white metal color, placed at room temperature in air, will turn dark silver or uniform gray. The higher the purity of molybdenum electrodes the colors look better and smaller annual variation. Molybdenum electrodes according to the processing methods can be divided into: polished molybdenum electrode, ground molybdenum electrode and caustic wash molybdenum electrodes. Molybdenum electrodes after polished the surface will show rendering brown or dark brown color, but this is not the color of molybdenum oxide, which is the color of impurities comprehensive oxides in molybdenum. The light brown color showing the surface uniformity is better, and then the quality is high. Conversely, if the surface is black, and different shades of color, then the poor quality of the electrode. Good quality molybdenum electrodes work in glass melting furnace for a few months the surface remaining silvery white color.

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