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Vacuum Furnace Production Technology

On the premise of stabilizing the equipment and optimizing the performance of the new decarbonization process, through summarizing and analyzing the utilization ratio of carbon and oxygen and the yield of aluminum deoxidation and alloying, it is found that some empirical formulas show that vacuum time is greatly reduced, production speed is accelerated and product quality is improved.


In the process of production technology of ultra-low carbon steel vacuum furnace, it is difficult to control two aspects. Firstly, how to carbon and the lowest level of 15 minutes, and secondly, how to add residual oxygen content in decarburized aluminium in molten steel in one time after 15 minutes can make aluminium deoxidize and ensure aluminium alloy.


In this way, it can accommodate between 25 and 30 minutes. Otherwise, the vacuum time will be greatly prolonged. During the production of ultra-low carbon steel, the contact between resistance material and molten steel leads to carbon on the back of steel along with the expansion of smelting time. In addition, because of the larger amount of Al added to ultra-low carbon steel, a lot of Al2O3 inclusions are produced. Therefore, the earlier and more advantageous aluminium connection is conducive to the floating of Al2O3 inclusions, which is more conducive to the operation of the waiting process and the improvement of product quality.


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