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The mechanical vacuum degassing furnace system consists of 16 first-stage oil rotary pumps, 8 second-stage Roots pumps, and 20 third-stage Roots pumps.
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The failure of vacuum furnace equipment can be roughly divided into system leakage, steam supply failure, valve failure, condenser failure, vacuum pump failure, instrument failure, mode setting error, etc.
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Vacuum degassing is carried out in the furnace body under a special vacuum environment. After a series of process operations, the product can achieve the specified effect.
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In order to homogenize the composition and temperature, the gas stirring process in the ladle appeared. The most striking is the adoption of secondary refining, which greatly improves the output and quality of steel. However, what is the main task and purpose of secondary refining? The composition of molten steel, decarburization, deslagging and refining of molten steel shall be adjusted according to the target of molten steel, molten steel melting, deslagging and refining.
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Vacuum degassing treatment is used to reduce dissolved gas components (e.g. hydrogen, oxygen, nitrogen) in steel to improve the performance of steel. Liquid steel comes from primary metallurgical production steps, and the capacity of ladle is usually 20-200 tons. The liquid steel is covered with slag to prevent reaction with the atmosphere.
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