Production practice has proved that the change in the properties of the electrode paste during the sintering process is more important than the properties of the electrode paste after firing, because accidents rarely occur once the electrode is fired
Continue ReadingThe high prices of crushed graphite and tar are the main reasons for the high prices of airtight pastes, especially the high prices of super dense pastes.
Continue ReadingGenerally speaking, three aspects should be considered as the cause of the accident: submerged arc furnace equipment problem; worker operation problem; electrode paste quality problem.
Continue ReadingThe electric furnace is not operating normally, the open arc is operated, the stinging is serious, the radiant heat of the furnace mouth and the convection heat of the gas are increased, and the electrode paste is melted too fast after being added.
Continue ReadingThe airtight paste itself is a kind of electrode paste. Of course, generally speaking, the quality of the sealed electrode paste is one grade higher than that of the ordinary electrode paste. Resistance and ash content should perform better.
Continue ReadingThe electrode pastes of THD-4 and THD-5 in the national standard GB10130-88 are used in open calcium carbide furnaces.
Continue ReadingThe quality, physical and chemical indexes of the electrode paste are listed in the above table, among which the elongation is a reference index.
Continue ReadingThe formula of the nickel-iron high-standard airtight paste is the same as that of the ordinary national standard electrode paste, and the raw material ratio is different.
Continue ReadingAt present, when domestic submerged arc furnaces are used to produce ferrosilicon, manganese and chromium ferroalloys, standard electrode pastes are usually used. With the continuous increase in the number of large-capacity submerged arc furnaces and closed electric furnaces put into use
Continue ReadingThe performance of the electrode paste during the sintering process can best explain the quality of the electrode paste. If the sintered electrode has transverse cracks, the next problem is most likely to be hard fracture, which is a very serious accident.
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