硅钢资料

【作者】 O.M.Гбанов； A.E.Чеглов； ...

本实用新型涉及硅钢生产设备技术领域，具体公开了一种硅钢清洗用张力刷辊结构，包括中空的辊筒，辊筒两端固定有连接盘，连接盘上固定有转轴，辊筒的表面开设有若干排水槽，若干排水槽沿辊筒的周向等间距分布，辊筒的中部设有积水环槽，积水环槽内开设有连通辊筒内壁的进水孔，排水槽为倾斜设置，且排水槽的低端与积水环槽连通，连接盘上开设有排水孔。本专利中对硅钢带进行张紧时，完成清洗的硅钢带表面的水会沿着排水槽进入积水环槽，并从积水环槽进入到辊筒的内部，后排走，这样防止钢带上的水滞留在辊筒的表面，使得辊筒与钢带之间出现打滑的情况；另外多个排水槽的设置，还能够提高钢带与辊筒之间的贴附性，防止出现打滑的问题产生。

采用ZMLMC超高梯度定向凝固装置,研究了5种凝固速率(10、35、80、150和450μm/s)对定向凝固50W600无取向硅钢的固液界面稳定性转变规律和一次、二次枝晶间距的影响。研究结果表明,在特定的温度梯度下,随着凝固速率的增加,定向凝固的固液界面由胞状晶转变为胞状枝晶,再转变为细小的树枝晶。随着凝固速率的增加,定向凝固组织的枝晶形貌逐渐细化,一次和二次枝晶间距逐渐减小,且与冷却速率之间都符合指数关系:λ1=151.73×(G L·R)-0.31,λ2=22.07×(G L·R)-0.44。当冷却速率达到4.275℃/s时,一次、二次枝晶间距分别为112μm、14.1μm。 Under the conditions of certain temperature gradient and different solidification rate,the directional solidification experiment of non-oriented electrical steel 50W600 was carried out.The microstructure of 50W600 steel was also analyzed in different solidification rate.The result shows that the solid/liquid interface of the steel undergoes an evolution from cellular,cellular dendrite and finally to fine dendrite morphologies.The dendrite refines gradually and the distance between dendrites decr... 

对高牌号无取向电工钢国内生产情况、工艺技术、产品性能及应用领域等进行了阐述,并探讨了高牌号无取向电工钢产品的发展趋势。 This paper introduces basic facts on the production status,process technology and products’ properties and their applications of non-oriented electrical steel with high grade at home,and then discusses the development trend on technology for producing the non-oriented electrical steel with high grade. 

试验2.3Si无取向硅钢(/%:0.003C,2.30Si,0.16Mn,≤0.020P,≤0.005S,0.54Al)冷轧板由常化和未常化的2.5 mm热轧板冷轧至0.6 mm(压下率76%),经750~950℃2.5 min中间退火后再冷轧至0.5 mm(压下率16.7%),成品板经890℃+960℃2.5 min退火。研究了中间退火温度对该钢晶粒尺寸、织构和磁性能的影响。结果表明,随中间退火温度的升高,二次冷轧前晶粒和成品晶粒增大,成品中不利织构组分{111}和{112}减弱,磁性能得到改善。热轧板经过常化时的磁性能明显好于未经常化时的磁性能,但中间退火温度较高时常化对磁性能的有利作用减弱。 The test cold sheet of 2.3Si non-oriented silicon steel(/%:0.003C,2.30Si,0.16Mn,≤0.020P,≤0.005S,0.54Al) is first cold-rolled from normalized and un-normalizing 2.5 mm hot-rolled plate to 0.6 mm sheet(reduction 76%),then intermediate annealed at 750~950℃ for 2.5 min and double cold-rolled to 0.5 mm sheet(reduction16.7%),the finished sheet annealed at 890℃+960℃ for 2.5 min.Effect of the intermediate annealing temperature on grain size,texture and magnetic performance of the steel has been studied.... 

利用EBSD技术对CGO硅钢热轧、中间退火、脱碳退火及二次再结晶退火组织及织构进行分析,研究了CGO硅钢各阶段加工制备过程中高斯{110}<001>晶粒的形状、尺寸及分布特点,分析了高斯取向晶粒在各工序过程中的遗传继承性特点。结果表明,CGO硅钢热轧板的次表层存在Goss取向晶粒,历经一次冷轧及中间退火后Goss取向晶粒基本消失,一次再结晶之后Goss织构仍不是主要织构,主要织构为{111}<110>和{111}<112>,说明Goss取向晶粒在二次再结晶退火前数量及尺寸上并不占优势,二次再结晶过程中Goss取向晶粒异常长大形成锋锐Goss织构。{111}<110>和{111}<112>织构组分的强度在一次冷轧中不断增加,{111}<112>织构组分的强度在二次冷轧后达到最大而{111}<110>织构组分是在初次再结晶后变强。 Grain shape,size and distribution of { 110} < 001 > Goss grains in CGO steel and the hereditary characteristics of Goss orientated grains during each processing period were investigated,based on the analysis of the microstructure and texture of the CGO silicon steel during hot rolling,intermediate annealing,decarburizing annealing and secondary recrystallization annealing by means of EBSD. The results show that Goss orientated grains exist in the subsurface of the hot rolled plate,and Goss... 

通过热力学计算及实验室研究,对钙处理前后50W600无取向硅钢退火冷轧板中夹杂物的类型、数量及尺寸进行了系统分析。结果表明,50W600无取向硅钢经钙处理后(w(Ca)=0.002 6%),钙在1 600℃的钢液中主要以固态的CaO·2Al2O3、CaO·6Al2O3及溶解钙的形式存在。在钢液的凝固过程中,钢中的溶解钙和硫反应生成了CaS和CaS-MnS复合夹杂,有效抑制了MnS的弥散析出,减少了钢中微细夹杂物的数量。同时钙处理促进了钢中微细夹杂物的聚合长大,导致显微夹杂物的数量增加。 Based on thermodynamic calculation and laboratory experiment,the type,quantity and size of inclusions in annealed cold-rolled steel sheets of 50W600 non-oriented silicon steel before and after calcium treatment were systematically studied.Results showed that after calcium treatment(w(Ca) = 0.002 6%),calcium was mainly in the form of CaO·2Al2O3,CaO·6Al2O3 and dissolved calcium in steel at 1 600 ℃.Dissolved calcium could combine with sulfur to form CaS inclusions and compound CaS-MnS inclusions du... 

本实用新型提供了一种带连接筋的硅钢盘，包括多个周向间隔排列的硅钢块，任意相邻的两所述硅钢块之间连接至少两连接筋，以将相邻的两所述硅钢块之间的空间分割为分设在所述硅钢盘轴向两侧的转子槽，及位于两所述转子槽之间的若干个收纳孔。多个所述硅钢块通过连接筋连接，并形成一整体的硅钢盘，相对现有技术独立成型多个硅钢块来说，不仅避免硅钢块丢失，还有效提升硅钢盘装配为转子盘的成型效率，以及保证各硅钢块在转子盘上的位置一致性，并且增加所述连接筋的数量，有效增强相邻两硅钢块的连接性能，从而大幅增强转子盘的机械可靠性。

通过对激光粒度分析仪测量硅钢级氧化镁(MgO)的分析条件进行优化,如分散介质、分散方式、样品预处理、仪器暗淡度等,探讨了硅钢级MgO粒度范围测量重现性较好的试验方法,满足硅钢生产过程控制对MgO粒度的要求。 The analysis condition of the laser particle size analyzer on grain oriented silicon-steel grade magnesium oxide is optimized,including the dispersion medium,dispersion methods,sample preparation,and instrument obscuration,etc.Therefore,particle size measurement with good reproducibility for silicon-steel magnesium oxide is discussed,which may meet the requirement of MgO particle size for silicon-steel process control. 

针对节能电机对无取向电工钢在磁性能方面的特殊要求,采用普通W600牌号的热轧板为原料,通过大量的现场工艺试验,研究总结出了\"超低张力\"的运行工艺、\"先快后慢\"的加热工艺、\"先湿后干\"的退火脱碳工艺、\"先缓后急\"的冷却工艺,生产出P1.5/50≤4.0 W/kg、B50≥1.70 T的冷轧电工钢产品,满足了节能电机的要求。 Based on the special requirements of no-oriented electrical steel for saving energy motor in magnetic aspects,using common W600 brand of hot rolled plate as raw material,through a large number of real tests,an ultra-low tension process,heating process which was quick at first and then slow,annealing decarburization process which was dry after the first wet,and a cooling technology of \"slow after the first urgent\" were concluded.Electrical steel product with P1.5/50≤4.0W/kg,B50≥1.70T was produced... 

本发明涉及一种硅钢热处理方法，尤其涉及一种取向硅钢极薄带绝缘层涂覆方法，包括以下步骤：(1)接入普碳钢引带的准备工作；(2)各炉段张力的设定工作；(3)炉内气氛及温度的调节工作；(4)绝缘层厚度及厚度的检测工作；(5)极薄带涂层涂覆及烘干工作；(6)极薄带表面绝缘涂层及磁性能检测工作。本发明采用与极薄带厚度相当的普碳钢作为引带，通过引带测试产线张力和绝缘层涂覆的厚度，一方面可通过普碳钢薄带的运行加速炉内温度和气氛的稳定性，节约炉内稳定时间；另一方面可通过成本较低的普碳钢检测炉内张力和温度的设定，及绝缘涂层的涂覆效果，避免开始采用硅钢带出现断带，及涂覆不合格后造成产品报废带来的成本升高。

一种分步调控制备高磁感高强度无取向电工钢的方法，按以下步骤进行：(1)按设定成分采用转炉冶炼钢水，制成连铸坯，含C0.001～0.008％，Si1.5～4.8％，Cu0.5～2％，Ni0.5～1.5％，Al0.2～1％，Mn0.2～1.5％，P＆lt;0.005％，S＆lt;0.005％，其余为Fe；(2)将连铸坯置于均热炉保温，多道次热轧相邻两道次间隔时间为30～180s；空冷；(3)常化处理；(4)多道次冷轧；(5)退火处理；(6)时效处理。本发明的方法成本较低、工艺简单，生产的无取向电工钢兼具优异的力、磁性能，能够很好的满足驱动/牵引电机的使用需求。