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电工钢硅钢片当磁极化强度随时间按正弦规律变化,其峰值为某一标定值,变化频率为某一标定频率时,单位长度电工钢片(带)沿磁化方向上发生磁致伸缩所引起的表面振动声压水平为 A 计权磁致伸缩速度水平。3.5 表面绝缘电阻 surface insulation resistance在规定条件下所测得的直流电阻,即产品在加直流电压,经过一定时间极化过程后,流过带钢(片)表面的泄漏电流对应的电阻,其符号为 C,单位为Ω·mm2/面或Ω·cm2/面。3.6 层间电阻 inter-lamination resistance产品叠片间,即上、湖北荆门本地下两个表面的绝缘电阻,称为层间电阻,其符号为 RA,理论上是表面绝缘电阻的 2 倍,单位为Ω·mm2/片或Ω·cm2/片。4 分类本文件的材料的等级是根据磁极化强度在1.7T、湖北荆门本地频率在50Hz下的 比总损耗名义值P1.7/50(W/kg)、湖北荆门材料公称厚度进行牌号分类,并按产品特性和特殊用途,细分为普通型、湖北荆门高磁极化强度型、湖北荆门磁畴细化型、湖北荆门耐热磁畴细化型、湖北荆门低噪声型、湖北荆门配电变压器专用型、湖北荆门特高压变压器专用型、湖北荆门无涂层型八类。
电工钢硅钢片In addition to the types listed above, there are also some special purpose electrical steel plates, such as 0.15 and 0.20mm thick 3% Si cold-rolled non oriented silicon steel strips and 0.025, 0.05, and 0.1mm thick 3% Si cold-rolled oriented silicon steel strips, used for medium and high-frequency motors, transformers, and pulse transformers; 0.7mm thick 3% Si high-strength cold-rolled non oriented silicon steel plate for relays and power switches; High strength cold-rolled electrical steel plate for new high-speed motor rotors; Low carbon electrical steel hot-rolled thick and cold-rolled plates for magnetic shielding and high-energy accelerator electromagnets such as medical magnetic resonance tomography scanners; 4.5% to 6.5% Si high silicon steel plates for high-frequency motors, transformers, and magnetic shielding.Generally, motors, transformers, and other electrical components are required to have high efficiency, low power consumption, small size, and light weight. Electrical steel plates are usually guaranteed to have magnetic properties based on core loss and magnetic induction strength [1] [2]. The requirements for the performance of electrical steel plates are as follows:Low core loss (PT)Iron core loss refers to the ineffective electrical energy consumed by an iron core when magnetized in an alternating magnetic field of ≥ 50Hz, abbreviated as iron loss, also known as alternating loss, and its unit is W/kg. The ineffective electrical energy consumed due to various obstacles caused by magnetic flux changes not only loses electrical energy through the heating of the iron core, but also causes temperature rise of the motor and transformer. The iron loss (PT) of electrical steel includes three parts: hysteresis loss, eddy current loss (Pe), and anomalous loss (Pa). Electrical steel plates have low iron loss, which can save a lot of electricity, prolong the operating time of motors and transformers, and simplify cooling devices. Due to the iron loss of electrical steel plates, which accounts for 2.5% to 4.5% of the annual electricity generation in various countries, countries always try their best to reduce iron loss in the production of electrical steel plates, and use iron loss as the most important indicator to assess the magnetic properties of products. The iron loss value of products is used as the basis for classifying product grades. Cold rolled oriented electrical steel: Cold rolled oriented electrical steel is a high-end product in the field of electrical steel. Compared with cold rolled non oriented electrical steel, its magnetism has strong directionality; It has superior high magnetic permeability and low loss characteristics in the direction of easy magnetization rolling. The iron loss of oriented steel strip in the rolling direction is only 1/3 of that in the transverse direction, and the ratio of magnetic permeability is 6:1. Application: The main purpose of cold-rolled oriented silicon steel strip is for transformer manufacturing.Full process cold rolled non oriented silicon steel coating: The surface of the full process cold rolled silicon steel is coated with a semi transparent insulation coating, which has different codes in different standards. Taking Baosteel‘s Q/BQB 480 2014 as an example:
电工钢硅钢片硅钢是一种硅铁合金。用硅钢轧制的片材是电工领域中应用广的软磁材料,因而硅钢片又称电工钢片。硅钢片广泛用于电动机、发电机、变压器、扼流圈、电磁机构、继电器及测量仪表中电机工业大量使用厚度为0.35~0.50mm的硅钢片,用于:中型旋转机,压缩电机,通用马达,小型精密电机,电动汽车,压缩机,通用电机,电源变压器,精密变压器,节能电机,焊机变压器,稳压器,磁性密封器,加速器用电磁铁,汽车电机等;在电信高频技术中常用0.05~0.20mm的薄带钢片,以便更有效地降低涡流损耗。热轧硅钢片厚度为0.35~0.50mm,密度为7.55~7.70g/cm3,多用于大、中、小型交、直流电动机;冷轧无取向硅钢片厚度为0.35~0.50mm,密度为7.65~7.75g/cm3,多用于大型交流发电机、电动机,大、中、小型交、直流电动机;冷轧取向硅钢片厚度为0.23mm 0.27mm 0.3mm 0.35mm,密度为7.65g/cm3,多用于电力变压器、油浸式变压器,干式变压器,电抗器、磁放大器等;冷轧取向薄带厚度为0.05~0.20mm,多用于无线电高频变压器。
鹿程国际贸易有限公司以重信用、守合同、保证 湖北荆门新能源电工钢产品质量,以及多品种经营特色和薄利多销的原则,赢得了广大客户的信任。欢迎各界朋友莅临参观、指导和业务洽谈。 承诺:同等质量比价格、同等价格比服务。
电工钢硅钢片硅钢是一种硅铁合金。用硅钢轧制的片材是电工领域中应用广的软磁材料,因而硅钢片又称电工钢片。硅钢片广泛用于电动机、发电机、变压器、扼流圈、电磁机构、继电器及测量仪表中电机工业大量使用厚度为0.35~0.50mm的硅钢片,用于:中型旋转机,压缩电机,通用马达,小型精密电机,电动汽车,压缩机,通用电机,电源变压器,精密变压器,节能电机,焊机变压器,稳压器,磁性密封器,加速器用电磁铁,汽车电机等;在电信高频技术中常用0.05~0.20mm的薄带钢片,以便更有效地降低涡流损耗。热轧硅钢片厚度为0.35~0.50mm,密度为7.55~7.70g/cm3,多用于大、中、小型交、直流电动机;冷轧无取向硅钢片厚度为0.35~0.50mm,密度为7.65~7.75g/cm3,多用于大型交流发电机、电动机,大、中、小型交、直流电动机;冷轧取向硅钢片厚度为0.23mm 0.27mm 0.3mm 0.35mm,密度为7.65g/cm3,多用于电力变压器、油浸式变压器,干式变压器,电抗器、磁放大器等;冷轧取向薄带厚度为0.05~0.20mm,多用于无线电高频变压器。。