达州干式变压器：铁心用硅钢片

铁心用硅钢片 　　
铁心采用的硅钢片在炼钢过程中加入了3%—5%的硅.从而提高了硅钢片的导磁率和电阻率，减少了硅钢片中磁滞损耗和涡流损耗。但若加入硅过多，则硅钢片变脆而使加工困难。
铁心硅钢片在绕组中的励磁电流所产生磁场作用下.获得磁感应强度，而且较快达到饱和，这是由于硅钢片内部的原子磁场作用的结果，即电子圈绕原子核旋转而产生磁场，在无外磁场作用时，已经在一个小的区域内按某一方向平行排列起来，使磁化达到饱和程度，形成一个合成磁矩，这样磁化称为自发磁化，这种小区域称为磁畴。
硅钢片中具有邮 箱：1262980066@qq.com许多磁畴，磁畴磁矩分别取不同方向，对外的作用相互抵消，不呈现磁性，当硅钢片在绕组的励磁电流所产生的磁场作用下，将已经自发磁化的许多磁畴的磁矩，从各不同方向改变到外加磁场方向，这样对外显示出较强的磁化。

Core using silicon steel

Core of silicon steel sheet used in the steelmaking process by adding a 3% -5% of the silicon, thereby increasing the permeability and resistivity of the silicon steel sheet, to reduce the hysteresis loss 传 真：0635-8888109and eddy current losses in the silicon steel. However, if too much by adding silicon, silicon steel brittle make processing difficult.
Excitation current in the windings of the core silicon steel under the action of magnetic field for magnetic induction, and faster to reach saturation, which is the results of the magnetic field due to the silicon steel sheet inside the atomic, electronic ring rotating around the nucleus produces a magnetic field, in the absence external magnetic field, has a certain direction within a small area parallel to the line up, so that magnetization reached saturation level, and form a synthesis of magnetic moment, this magnetization is called spontaneous magnetization, this small regions called magnetic domains.
Silicon steel with many magnetic domains, magnetic domains magnetic moment were taken in different directions, the external role of cancel each other out, not showing the magnetic silicon steel sheet produced by the excitation current in the windings of the magnetic field, the spontaneous magnetization of magnetic domain magnetic moments change from a different direction to the direction of the applied magnetic field, external display strong magnetization.

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