電工鋼硅鋼片 電工鋼主要分為晶粒取向電工鋼和晶粒無(wú)取向電工鋼兩大類。取向電工鋼易磁化晶粒方向沿軋制方向分布，軋制方向具有高磁感、云南德宏低鐵損及低磁致伸縮等優(yōu)良特性，同時(shí)還可通過(guò)磁疇細(xì)化的技術(shù)處理，獲得更低鐵損的性能，廣泛應(yīng)用于變壓器行業(yè)領(lǐng)域。從2008年5月15日，寶鋼 卷合格取向電工鋼成功下線以來(lái)，寶鋼取向電工鋼品種迅速拓展至普通型、云南德宏高磁感型和細(xì)化磁疇高磁感型三大類。本手冊(cè)綜合介紹了寶鋼取向電工鋼的牌號(hào)、云南德宏品種、云南德宏規(guī)格、云南德宏應(yīng)用范圍、云南德宏電磁性能、云南德宏力學(xué)性能、云南德宏尺寸板形公差、云南德宏相關(guān)的使用技術(shù)及廣泛的應(yīng)用業(yè)績(jī)，使用戶對(duì)寶鋼取向電工鋼產(chǎn)品能進(jìn)一步了解，進(jìn)而充分利用寶鋼電工鋼產(chǎn)品特性，生產(chǎn)出更加優(yōu)良的下游產(chǎn)品。

電工鋼硅鋼片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:

電工鋼硅鋼片疊裝系數(shù)產(chǎn)品的疊裝系數(shù)應(yīng)符合表 3、云南德宏附近表 4 的規(guī)定。供方如能保證，可不進(jìn)行該試驗(yàn)。仲裁時(shí)，適用于無(wú)絕緣涂層狀態(tài)。7.4.3 彎曲次數(shù)彎曲次數(shù)是指用肉眼在基板上觀測(cè)到 次出現(xiàn)貫穿試樣厚度的裂紋(或聽(tīng)到產(chǎn)生裂紋的聲音)前的 反復(fù)彎曲次數(shù)，它表示材料的延展性。彎曲次數(shù)應(yīng)符合表 3、云南德宏附近表 4 的規(guī)定。供方如能保證，可不進(jìn)行該試驗(yàn)。7.4.4 內(nèi)應(yīng)力產(chǎn)品應(yīng)盡可能量避免出現(xiàn)內(nèi)應(yīng)力。內(nèi)應(yīng)力的檢驗(yàn)不適用于寬度小于或等于150mm 的鋼帶（縱切分條后的鋼帶）?？p隙測(cè)量值應(yīng)不超過(guò) 2mm。供方如能保證，可不進(jìn)行該試驗(yàn)。8 檢驗(yàn)和試驗(yàn)8.1 檢驗(yàn)批次產(chǎn)品應(yīng)按批驗(yàn)收，每個(gè)檢驗(yàn)批應(yīng)由不大于20噸的同牌號(hào)、云南德宏附近同規(guī)格、云南德宏附近同熱處理狀態(tài)、云南德宏附近同絕緣涂層的鋼帶組成。對(duì)于重量大于20噸的鋼帶，每個(gè)鋼卷組成一個(gè)檢驗(yàn)批。