加磷电机钢的铁心损失和磁导率

• 作 者: 何忠治
• 出 处: 钢铁
• 发表日期: 1960年07期
• 关键词: 磁滞损失 涡流损失 晶粒粗化 磁导率 变压器钢 电机 钢中 再结晶 晶粒细化 铁损

按照ГОСТ802-58(标准生产的热轧电机钢中,磁滞损失是铁心损失的主要组成部份;当总铁损P~(10/50)为2.1—3.0瓦/公斤时,磁滞损失是1.6—2.2瓦/公斤,涡流损失是0.4—0.5瓦/公斤,附加损失占5—10％(Э43变压器钢中约为50％)。通常在晶粒粗化时附加损失增加,而磁滞损失却急剧下降。当电机钢加热到950—1,000℃以上时,在某种情况下,由于相变使晶粒细化;在另一种情况下,由于聚集再结晶而使晶粒粗化。所以提高退火温

According to ГОСТ802-58 (hysteresis loss is the main component of the core loss in the standard production of hot-rolled electrical steel; hysteresis loss is 2.1-3.0 watts / kg when the total iron loss P ~ (10/50) is 1.6-2.2W / kg, eddy current loss is 0.4-0.5W / kg and additional loss is 5-10% (about 50% in Э43 transformer steel) .In addition, the additional loss generally increases during grain coarsening and the hysteresis loss But steeply falls.When the motor steel is heated above 950-1,000 ° C, in some cases, the grains are refined due to the phase change, and in another case, the grains are coarsened due to the recrystallization by aggregation Improve the annealing temperature