硅钢资料

本发明公开了一种低损耗宽料取向硅钢的生产方法。本发明所述生产方法是通过在罩式炉的内罩中增加带有通气孔的聚气罩及与聚气罩配合的炉底板，配合工艺优化，控制原料化学成分，使气体和钢卷之间的浓度更均匀，反应更充分，气流流动方向更易控制，所制备的取向硅钢性能稳定，磁性能优良，且铁损达到1.12W/KG以下的比例提高至98.77％，平均铁损达到1.06W/KG以内，使取向硅钢卷的铁损大幅度降低，电磁性能更好。

对无取向硅钢炼钢全流程钢液增钛的原因进行了分析,认为铁水钛含量、转炉出钢温度、转炉下渣量、精炼渣TiO₂含量、钢水罐及RH浸入管混钢种生产是影响钢液增钛的主要原因。通过采取低钛铁水冶炼,减少转炉下渣量,提高出钢温度,添加白灰改质精炼渣等措施,均能够降低钢液中的钛含量。 After analyzing the causes leading to increased content of titanium in molten nonoriented silicon steel during whole steelmaking process, it was concluded that such factors as content of titanium in hot metal, tapping temperature from converter, quantity of roughing slag entered into the ladle from converter, content of TiO₂ in refining slag, molten steel ladle car,carrying out the steelmaking of different steel grades by the same ladle and same RH immersion tube were the main causes ... 

本实用新型公开了一种具有导气槽的低空载损耗电工钢用罩式炉，包括：炉台，顶部设置有加热元件以及连通炉台外缘至中心凹陷的导气通道；炉板，压设于炉台上，设置有与中心凹陷上下对应的中心通孔；砂封槽，设置于炉台的外周，槽底低于导气通道；炉罩，罩设于炉台的顶部及外周形成炉腔，与砂封槽相压接；进气通道，穿设于炉台的中心凹陷中，具有开口向上的排气口；炉罩的炉台套接段内壁设置有导气槽，导气槽的延伸方向与炉罩的高度方向一致，导气槽将气流导向炉台外缘的导气通道进气口。该具有导气槽的低空载损耗电工钢用罩式炉的炉罩设置有导气槽，利用导气槽将硅钢卷外周下行的气流导入炉台的导气通道中，改善钢卷热处理过程中的流场和温度场。

以构建高磁感、低铁损、免轧制高硅电工钢铁芯为出发点,提出采用单辊甩带制备非晶铁硅合金薄带、微氧化法在铁硅合金粉末表面包覆高电阻率铁硅氧化物薄膜制备核壳异质结构高硅电工钢纳米粉末、放电等离子烧结快速成形制备颗粒间绝缘的高硅电工钢铁芯。研究了不同氧化包覆时间对SPS烧结试样密度、物相组成、微观结构和静磁性能的影响。研究表明,在氧化包覆5h烧结温度800℃工艺条件下,制备的6.5%Si高硅电工钢铁芯的静磁性能最佳,饱和磁化强度为128.84A.m2/kg、矫顽力为2.25kA/m、剩磁为3.47A.m2/kg。其饱和磁化强度与粉末压延法制备的高硅钢相当,但矫顽力降低了1/3。 The paper takes preparation 6.5%Si steel with high induction,low core loss and removing rolling as the starting point,amorphous Fe-Si ribbons was synthesized by melt spinning method,6.5%Si steel nanopowders with high resietivity core shell structure was prepared by the slight oxidation process and 6.5% Si steel iron core with evaluating internal was sintered by spark plasma sintering process(SPS).The essay focuses studies the effects of different oxidation cladding time on sample density,phase c... 

无取向硅钢的磁性能主要取决于铁素体的晶粒尺寸、晶体织构和钢中的夹杂物。通过合适的化学成分设计以及采用适宜的夹杂物控制技术,可以获得最佳的夹杂物控制效果,使其纯净度大幅度提高或者无害,最终获得磁性能优良的高级别无取向硅钢。同时,为满足节能、环保、高效需求,无取向硅钢正朝着节能降耗、环境友好以及多功能、高效率、易加工等方向发展。 The magnetic properties of non-oriented silicon steel mainly depend on the grain size of ferrite,the crystallographic texture,and the inclusions in the steel.The optimum inclusion control effects can be obtained through a suitable chemical composition design and an appropriate inclusion control technique,and then the liquid steel will get be clean or the inclusion will get be harmless,finally the excellent magnetic property of the non-oriented silicon steel can be obtained.Meanwhile,in order to ... 

目前高磁感冷轧硅钢生产过程中，采用经验方法确定的乳化液流量设定值往往会造成硅钢产品的磁感性能达不到预期目标，针对此情况，基于轧机轧制机理研究了的乳化液流量数学模型，确定了乳化液流量设定值。实践表明，使用该数学模型输出的乳化液流量设定值，可提高轧制过程中乳化液流量控制精度，从而提高高磁感冷轧硅钢的轧制性能。 In view of the current production process of high magnetically inductive cold-rolled silicon steel, the mathematical model of emulsified fluid flow based on mill rolling mechanism is studied in view of the situation in which the magnetic sensing performance of silicon steel products is often not up to the expected target by using empirical method to determine the emulsified liquid flow setting. Practice shows that the emulsified fluid flow setting value output from this mathematical model improv... 

本发明公开了一种硅钢轧制系统，包括：轧机组，所述轧机组包括M架轧机，用于轧制硅钢，所述M架轧机的前N架轧机的轧辊为高速钢轧辊，其中，M、N为正整数；硅钢检测装置，位于所述轧机组最后一架轧机的出口处，用于对出口硅钢的参数信息进行检测；控制器，与所述硅钢检测装置通信连接，用于在所述参数信息不满足预设参数条件时，控制所述轧机组停止工作；磨床，用于在所述轧机组停止工作后，对所述N架轧机中的每架轧机进行辊形精度检测，对不满足预设辊形精度范围的轧辊进行磨削。

本发明涉及涂层液技术领域，且公开了取向硅钢绝缘涂层液，其配比为：二氧化硅10‑15%、硼酸5‑8%、磷酸二氢盐2‑5%、金属溶胶20‑25%、氢氧化铝占5‑6%、有机酸处理的复合盐溶液20‑30%、分散剂0.5‑1%，其余为水，采用硅溶胶作为辅助成膜物，粘结力较强，对附着性影响很大。硅溶胶能够很均匀地包裹在被胶结物质的表面，通过自干成膜，保持了很高的常温结合强度；而磷酸盐涂层的固化是通过受热分解，脱水聚合完成的，低温强度差，中温强度高，充分利用了硅溶胶低温的结合强度和磷酸盐中、高温时的结合性能，消除了常规涂层烘烤时容易出现的收缩、起泡现象，阻止了微气孔的形成，提高了涂层的表面光滑度，粘结强度和稳定性同时保持绝缘涂层的光泽、光滑和稳定性。

通过对取向硅钢进行脉冲磁场退火实验,发现在相同的退火时间(6.0 min)内,低于1 T的脉冲磁场可以在一定程度上提高取向硅钢的磁感(B8),而高于1 T的脉冲磁场则会使取向硅钢的磁性能急剧恶化.同时发现,脉冲直流电加热方式会使取向硅钢的磁性能恶化.研究表明,脉冲磁场退火有望成为一种调控材料微观结构的有效手段. We have carried out experiments of annealing by pulse magnetic field.The results show that a pulse magnetic field with intensity lower than 1 T can promote magnetic induction density(B8) of grain-oriented silicon steel,while the magnetic properties deteriorate sharply when intensity is higher than 1 T.It has also been found that heating by using pulse direct current can cause the magnetic properties to deteriorate,in contrast to the traditional heating using resistance furnace.Our research shows... 

一种硅钢生产线退火炉前的换热装置，包含有抽风机（1）、立柱（2）、热交换器（3）、软管（4）和热风机（5）；其特征在于：所述的热交换器（3）由若干组U形不锈钢管连接而成，一端固定在轴套（8）上，另一端通过链条（10）连接在立柱（2）顶端的链条盘（9）上，当链条盘（9）转动时，链条（10）拉动热交换器（3）绕着横轴（7）抬起或放下。本发明通过抽风机（1）将清洁空气抽到热交换器（3）内进行加热，然后再通过软管（4）将热空气输送到热风机（5）内来加热硅钢板（14），有效的利用了热能，避免了凝露导致的板面发蓝现象。

研究了含铜低碳低硅无取向电工钢中的析出相及其析出机理.由能谱(EDS)及选区电子衍射(SAED)分析可知,铁素体基体上存在的大量弥散分布的等轴状析出相为类B2结构的铜.这些铜析出相的析出机理可以是一般析出、位错析出、台阶机理相间析出和弓出机理相间析出:一般析出在550、650和750℃三个等温温度均可发生;位错析出只发生在较低的等温温度(550℃),此时析出相呈特殊的平行短列状;台阶机理相间析出也可在上述三个等温温度下发生,但650℃等温时最有利于台阶机理相间析出,此时析出相平直列状分布;弓出机理相间析出只发生在较高的等温温度(750℃),析出相弯曲列状分布. Precipitates in low-carbon low-silicon non-oriented electrical steel containing Cu were studied and the precipitation mechanism was analyzed by means of energy dispersive spectrometry(EDS) and selected area electron diffraction(SAED).It is found that the equiaxed precipitates of Cu with B2-like structure distribute dispersively in the non-oriented electrical steel.The precipitation mechanism involves general precipitation,dislocation precipitation,interphase precipitations formed by the ledge me... 

概述了无抑制剂法生产取向电工钢的特性及其用途;总结无抑制剂生产取向电工钢的原理及工艺方案.重点讨论了成分方案,即元素对磁性能的影响和最终高温退火方案对二次再结晶的影响.研究结果表明,无抑制剂取向硅钢化学成分范围没有普通取向硅钢和高磁感取向硅钢严格,提高了成材率;最终高温退火决定了二次再结晶的好坏,从而最终决定成品磁性能,最佳的高温退火温度在850～950℃之间. This article provides an overview on the characteristics and uses of inhibitorless process producing grain-oriented electrical steels.The mechanism of inhibitorless process and technology programs were discussed.The results show that the chemical composition and final annealing were determined according to magnetic properties.The inhibitor-free grain oriented silicon steel has loose range of chemical composition;Secondary recrystallization occurs mainly in the final annealing and the best anneal...