Molybdenum News Center

Advantages tabular molybdenum electrodes are light weight electrodes, there is no high-temperature creep. Conductive area is more than four times the equivalent weight rod electrodes, so consume less, no progress can not be continued. As the plate electrode spacing firebrick around 50mm, refractory electrode behind a certain protective effect. Molybdenum plate can not touch firebrick, to maintain a certain distance. On the transmission link, and the same side of molybdenum electrodes can be connected, but the current measures are required to take, if it is independent of the transmission, it should also pay attention to the same phase. 

 

The main disadvantages are: 

① If the electrode is damaged, you need to shutdown and discharge of molten glass at high temperatures can be replaced. So far, some plants still using such electrodes. 

② must be cold installed. 

③ confined to a small fused kiln design applications. 

 

Plate electrodes in use should also note the following: 

① start protection cover can be a low-melting glass or gaseous chemical stability (e.g., nitrogen) protection. Molybdenum plate electrode only cold installed in soda-lime glass melting furnace, the electrode plate with broken glass plus protective layer buried. In hard glass, you can consider using nitrogen (hereinafter 1200 ℃ can be regarded as safe). According to the site practical situations, molybdenum electrodes (plates or rods) with borosilicate glass for cover is also feasible. 

② plate electrode structure must be solid, rod and the glass plate to be maintained in a good conductive state. If loose, cause erosion wear plate rod coupling portion, the electrode plate off, the convection of molten glass and the temperature distribution will change, and the rest of the rods also exacerbate losses will eventually lead from the electrode gap and flow out firebrick material. In addition, attention should be parallel to the bottom of the plates and molybdenum. 

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