共查询到18条相似文献,搜索用时 46 毫秒
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针对目前国内冶金行业钢水精炼中的顶枪装置发生变频器故障时,导致顶枪无法快速自动提升至真空槽外,且易引起顶枪枪体被烧坏,研发出了一种新型顶枪升降装置控制电路,可提高顶枪装置的安全性和可靠性。 相似文献
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结合生产实际数据,分析了RH真空脱气工艺过程。如要求[H]≤1.8×10-6,需真空处理9min;当要求[H]≤1.5×10-6时,冬、春季节RH处理时间为≥11min,夏季则为≥12min,秋季应为≥13min;RH脱氮率约为23%,且在脱气超过8min时RH脱氮出现拐点,延长真空处理时间对脱氮影响不大。 相似文献
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ZHUMiao-yong WUYong-lai DUCheng-wu HUANGZong-ze 《钢铁研究学报(英文版)》2005,12(2):20-24
RHvacuumdegasseractingasoneofthemost importantsecondaryrefiningprocesseshasreceived considerableattentionintheproductionofhigh qualitysteel.ThemainfunctionsofRHvacuumde gassingprocessaredegassinganddecarburization duringrecirculationofmoltensteelbetweena… 相似文献
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ZHANGChun-xia WANGBao-jun ZHOUShi-guang LIULiu XUJing-bo LINLi-ping ZHANGCheng-fu 《钢铁研究学报(英文版)》2004,11(1):12-16
A hybrid neural network model, in which RH process (theoretical) model is combined organically with neural network (NN) and case-base reasoning (CBR), was established.The CBR method was used to select the operation mode and the RH operational guide parameters for different steel grades according to the initial conditions of molten steel, and a three-layer BP neural network was adopted to deal with nonlinear factors for improving and compensating the limitations of technological model for RH process control and end-point prediction. It was verified that the hybrid neural network is effective for improving the precision and calculation efficiency of the model. 相似文献
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介绍了RH真空精炼炉冷凝器的构成和功能,分析了冷凝水对RH真空炉真空度的影响。 相似文献