Molybdenum oxide

After World War II, the advent of molybdenum electrodes, have been widely used in the glass industry, highlighting the advantages of molybdenum electrodes are: 
①Infiltration of the molten glass can be  the contact resistance is small, the electrode surface can withstand high current density of about 1 ~ 3A/cm2; 
② low heat loss electrode; 
③ easy to color the glass. However, molybdenum electrodes in the air easily oxidized when heated, produces MoO3 600 ℃ when the molybdenum oxide electrode no protective effect. 
 
Molybdenum electrode is a metal electrode, can be made into a variety of plates, rods, ball shape, foreign fused kiln basically using molybdenum electrodes. Rich resources of molybdenum, molybdenum electrodes applied research and production also reached a higher level, and create favorable conditions for the development of glass fused. 
 
Molybdenum electrode production process in two ways: First, after first hydroforming molybdenum powder sintering, after forging and heat treatment to form a resistance to deformation of the grain structure. Another method is powder metallurgy method. Forged and extruded powder metallurgy molybdenum material than good. 
 
Currently, electrodes are typically made ​​of molybdenum bar electrodes, and a plate electrode formed rarely. The rod-shaped common electrode diameter between 32 ~ 50mm, the rod-shaped electrodes bold trend diameter can be 100mm. The length of the rod-shaped electrode can be provided between 1 ~ 2m. The electrode may be provided with a flat end connecting thread, the thread used, a great advantage can be pushed into the electrode. Must of course be noted that the resistance of the threaded joint is not too large. No impurities precision cutting standard threaded meet this requirement. To facilitate screwing the electrodes, a small amount of lubricant may be used, but must be lead-free lubricant. 
 
When using the plate-shaped electrode, the thickness of the molybdenum plate is between 2 ~ 20mm, the largest area of 1m2. Molybdenum rod to the plate electrode through the power supply, and a suitable method of molybdenum rod and the connecting plate electrode. 

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