電工鋼硅鋼片應(yīng)力退火電工鋼在剪切、西藏日喀則同城沖片和彎曲加工等機(jī)械變形作用下，電磁性能將發(fā)生劣化。為此進(jìn)行應(yīng)力退火，可以使電工鋼的電磁性能恢復(fù)至原來水平。應(yīng)力退火的條件和工藝將根據(jù)加工程度、西藏日喀則同城退火爐況等有明顯不同，用戶務(wù)必注意如下幾點(diǎn)：(1) 加熱與冷卻速度電磁性能一般不受加熱和冷卻速度的影響，但用戶需確保材料不變形。(2)退火溫度與保溫時(shí)間取向電工鋼退火溫度在780-820℃之間較為適宜，為確保退火效果，退火材料應(yīng)均熱的保持，保溫時(shí)間應(yīng)根據(jù)鐵芯形狀、西藏日喀則同城裝爐量等進(jìn)行調(diào)整。(3)防止?jié)B碳與氧化由于滲碳及氧化會(huì)使電磁性能劣化，用戶應(yīng)充分注意爐內(nèi)氣體，并確保爐內(nèi)氣體的露點(diǎn)在較低狀態(tài)。另外，為防止在退火中發(fā)生滲碳，應(yīng)該在退火前，將鐵芯加工過程中潤滑油脂等有機(jī)化合物干凈。同時(shí)，為確保退火效果，建議與爐內(nèi)高溫接觸部分盡量采用低碳含量材料。有害物質(zhì)限定承諾 寶鋼的取向電工鋼產(chǎn)品符合RoHS、西藏日喀則同城REACH有害物質(zhì)限定要求。

電工鋼硅鋼片硅鋼是一種硅鐵合金。用硅鋼軋制的片材是電工領(lǐng)域中應(yīng)用廣的軟磁材料，因而硅鋼片又稱電工鋼片。硅鋼片廣泛用于電動(dòng)機(jī)、發(fā)電機(jī)、變壓器、扼流圈、電磁機(jī)構(gòu)、繼電器及測(cè)量?jī)x表中電機(jī)工業(yè)大量使用厚度為0.35～0.50mm的硅鋼片,用于：中型旋轉(zhuǎn)機(jī)，壓縮電機(jī)，通用馬達(dá)，小型精密電機(jī)，電動(dòng)汽車，壓縮機(jī)，通用電機(jī)，電源變壓器，精密變壓器，節(jié)能電機(jī)，焊機(jī)變壓器，穩(wěn)壓器，磁性密封器，加速器用電磁鐵，汽車電機(jī)等；在電信高頻技術(shù)中常用0.05~0.20mm的薄帶鋼片,以便更有效地降低渦流損耗。熱軋硅鋼片厚度為0.35～0.50mm，密度為7.55～7.70g/cm3,多用于大、中、小型交、直流電動(dòng)機(jī)；冷軋無取向硅鋼片厚度為0.35～0.50mm，密度為7.65～7.75g/cm3，多用于大型交流發(fā)電機(jī)、電動(dòng)機(jī)，大、中、小型交、直流電動(dòng)機(jī)；冷軋取向硅鋼片厚度為0.23mm 0.27mm 0.3mm 0.35mm，密度為7.65g/cm3,多用于電力變壓器、油浸式變壓器，干式變壓器，電抗器、磁放大器等；冷軋取向薄帶厚度為0.05～0.20mm，多用于無線電高頻變壓器。

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: