电工钢硅钢片,电工钢厂家采购

电工钢硅钢片：电工钢钢板经冲片、山东临沂本地剪切、山东临沂本地弯曲会引入残余应力，导致磁性能劣化。应力退火（SRA）可以残余应力对磁畴移动与转动的阻碍作用，恢复电磁性能。E.2 在钢板或叠铁心的状态下进行应力退火的注意事项如下。1). 避免氧化和渗碳为了防止氧化应力退火应该在保护气氛下进行，通常是 10％以下氢气（H2）和 90％以上氮气（N2）、山东临沂本地100％氮气（N2）或者氨分解气氛的非爆炸性保护气氛，露点控制在 0℃以下。冲压加工过程引入的冲压油在退火前应完全去除，防止在退火中发生渗碳，劣化产品磁性。2). 退火温度及保持时间退火温度指材料温度，750℃为宜。为使得钢板各部分退火均匀，需要调整温度与保持时间。温度太低不足以残余应力的影响，温度太高会破坏涂层绝缘性。3). 冷却时间应当避免急剧冷却使材料产生应力应变。冷却时间根据电工钢退火数量进行调整。对于退火小吨位数量时，可按每小时不超过 25℃ 的冷却速度冷却到 350℃,以避免冷却过程中产生应力应变。对于退火大吨位数量时，应采取更加缓慢的冷却速率，以期获得 效果。

电工钢硅钢片Ultra-thin series: B15AHT1000, B15AHT1200, B15AT1000, B15AT1200B15AT1500, B15AT1550, B20AHT1000, B20AHT1200, B20AT1000, B20AT1200, B20AT1500, 20WTG1200, 20WTG1500 20WTG1550 B25AHV1200 B25AHV1300, B27AHV1400, B27AV1400, B30AHV1500 B30AHV1400, B35AV1700 B35AV1800High performance series: B35AH300, B50AH300, 50AH470, 50AH600, 50AH800, B50AH470, B50AH600, B50AH800, B50AR300, B50AR600, B50AR500, B50AR350, B20AT15000.35 series: B35A200, B35A210, B35A230, B35A250, B35A270,B35A300, B35A360, B35A440, B35A550, B35AH300, B35AR300, B35AY-10.5 series: B50A250, B50A270, B50A290, B50A310, B50A350, B50A400, B50A470, B50A600, B50A700, B50A800, B50A1000, B50A13000.65 series: B65A470, B65A530, B50A600B65A700, B65A800 B65A1000, B65A1300Super thick Series: 70WK340, 75WK400, 80WK420, 85WK450, 10W800 WFC-100A, silicon steel sheet performance: A low iron loss. As an important indicator of quality, each country divides the grade by the iron loss value. The lower the iron loss, the higher the grade and the higher the quality.B. High magnetic induction strength. Under the same magnetic field, the silicon steel sheet with high magnetic sensitivity can be obtained. The volume and weight of the iron core of the motor or transformer made by it are relatively small, which can save silicon steel sheet, copper wire and insulating materials, etc.C. High stacking coefficient. The surface of the silicon steel sheet is smooth, flat and uniform in thickness, which improves the stacking coefficient of the iron core.D. Good punching property. This is more important for manufacturing small and micro motor iron cores.E. The surface has good adhesion and weldability to the insulating film.