硅钢资料

本文中简要介绍了武汉钢铁有限公司采用薄板坯连铸连轧CSP(compact strip production, CSP)工艺生产中低牌号无取向硅钢的实践情况.CSP工艺生产的硅钢具有成品磁性均匀、板形好的优势，但是在利用该技术生产中低牌号无取向硅钢时，常存在成品板表面瓦楞状缺陷严重、连铸生产效率低等问题.通过优化炼钢成分、热轧等相关工艺，可消除热轧板厚度方向中心的粗大形变组织，从源头上避免了粗大{100}<011>纤维组织的出现，消除了瓦楞状缺陷；通过提升冶炼效率和控制钢中夹杂物总量，可优化隧道炉的加热温度与在炉时间，大幅度提升了连铸生产效率，实现了中低牌号无取向硅钢的批量稳定制造，使CSP产线成为中低牌号无取向硅钢热轧板原料的主要供给生产线.如何进一步提升钢水纯洁度、提高连铸生产效率、降低生产成本，以及挖掘该产线生产薄带钢的技术优点，是未来工作的重点. This paper briefly introduces the practice of producing medium and low grade non oriented silicon steel(NGO) with CSP(compact strip production, CSP)technology in Wuhan Iron and Steel Co., Ltd.. This technology has the inherent advantages of uniform magnetic properties and good shape for silicon steel finished strip. However, in the actual production process, there are serious corrugated defects on the surface of silicon steel finished strip, and production efficiency of continuous casting is low... 

针对不同牌号的无取向硅钢产生结疤缺陷的难易程度和表面结疤缺陷的外形特征及分布规律,分析了该缺陷产生的原因。通过调整剪前导板的对中度,设置精轧侧导板开度余量及短行程数值,及时修补与更换侧导板,减少带坯与侧导板挤撞程度,有效地降低了结疤缺陷发生率。 This article analyses the cause of the scab defects according to the defects appearance characters and distribution law,degree of difficulty to form scar of non-oriented silicon steel. It can effectively decrease the scabs by different methods,such as adjusting the center line of guide plate,setting the opening margin and short stroke value of the side guide on finishing mill,timely repairing and replacing of side guide,decreasing the collision between the strip and side guide. 

对碳-锰-硅钢进行不同配分温度的Q&P(Quenching and Partitioning)处理,测试了热处理后不同钢的力学性能和残余奥氏体含量,并用扫描电子显微镜和透射电镜观察其显微组织,分析了配分温度对显微组织和力学性能的影响。结果表明:试验钢显微组织基本由低碳板条状马氏体、块状铁素体和条状残余奥氏体组成;随配分温度的升高,试验钢的抗拉强度呈下降趋势,伸长率与奥氏体含量的变化趋势相同,但变化规律不确定;提高锰含量能稳定残余奥氏体,从而提高试验钢的伸长率,并使伸长率对配分温度不敏感。 The C-Mn-Si steel was quenched and partitioned at different partitioning temperatures,the mechanical properties and residual austenite contents were investigated,the microstructure was observed by SEM and TEM,and the effect of partitioning temperature on microstructure and mechanical properties was analyzed.The results show that the microstructure of the tested steel consisted of lath martensite with low carbon,nubby ferrite and banded residual austenite.The tensile strength of the tested steel ... 

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... 

借助OM、激光共聚焦显微镜、质谱仪和电解萃取等设备和方法，研究了添加微量稀土La（质量分数0.001 1%）的取向硅钢在轧制前采用不同加热保温时间对抑制剂固溶行为的影响。结果表明：当稀土取向硅钢在1 250℃分别保温10、20、30 min后，试验钢晶粒尺寸随保温时间延长有先快后慢的长大趋势；三种抑制剂元素Mn、Cu和Al均发生固溶，保温时间对Mn和Cu两种元素的固溶影响明显，固溶量分别由69.8%和43.7%增加至84.2%和85.2%；随着保温时间的延长，稀土取向硅钢中抑制剂的小尺寸未溶物逐渐减少直至消失，较大尺寸未溶物（300～600 nm）逐渐转变为小尺寸未溶物逐步溶入基体中，数量减少且未溶物的类型由复杂逐渐转变为单一。 In this paper the solid solution behavior of the inhibitor under various holding time in 0.001 1 %La oriented silicon steel during reheating had been investigated by using OM, LM, methods of electrolytic extraction and mass spectrometer. The results showed that grain size of the test steel increased significantly with the holding time prolonging when the rare earth oriented silicon steel was heated to1 250 ℃ and held for 10, 20 min and 30 min respectively, and the growth trend slowed down after ... 

本实用新型涉及变压器铁芯生产技术领域，尤其涉及一种硅钢片卷自动上料装置。包括所述底座上方设置有支撑座，所述支撑座上方转轴连接有翻转座，所述翻转座前后两侧设置有支撑柱，所述托架底部前后两侧设置有支撑套，所述支撑套对应滑动连接在支撑柱上，所述支撑套左侧上方设置有凸台，所述凸台右侧在支撑套上方设置有卡槽，所述卡槽右侧开口，所述硅钢带卷设置在卡槽内部，将钢卷平躺放置在托架的卡槽内部，通过翻转液压缸可将托架和钢卷进行树立，钢卷一侧靠在托架上，钢卷树立过程比较平稳，通过三组液压缸可实现钢卷自动上料的过程，在钢卷树立过程中，可通过绳索将钢卷固定在托架上。

本实用新型涉及硅钢绝缘涂料生产技术领域，尤其为一种环保硅钢绝缘涂生产加工用灌装装置，包括底座，所述底座的顶端右侧固定连接有支架，所述支架的顶端内侧固定连接有加料管，所述加料管的底端外侧连通有电磁阀，所述支架的右端固定连接有控制器和报警灯，本实用新型中，通过设置的报警灯、加料管、储存桶、限位轴、弹簧、限位环和载物板，通过弹簧对载物板以及储存桶进行支撑，在储存桶内侧没有原料时加料管的一端处于储存桶的内侧，由于加料管的出料口在储存桶的内侧，同时加料管的出料口离储存桶的底部距离近，物料从加料管出来时不会出现迸溅的现象，随着储存桶内侧物料之间的增加，载物板以及储存桶也会一起往下移动，直到触碰限位开关。

本发明是改善硅钢边缘裂边的工艺，包括：S1：对普通取向硅钢卷进行放卷、活套、清洗、加热、冷却；S2：对硅钢进行收卷，收卷张力系数为3‑9kg/mm2；S3：对硅钢卷用收紧带收紧打包，打包带张力为3‑8kg；S4：罩式炉进行炉底板检测，炉底板不平度＜2mm；S5：将收紧打包后的硅钢卷送入罩式炉内进行高温退火处理；本发明的优点：通过调整取向硅钢材料生产过程中对CA线收卷张力的控制、CA收紧带的使用与控制、罩式炉炉底板的平整度，实现1200mm以上宽度材料平均不良切边宽度≤45mm，边部裂边尺寸减少40％。有效提高了加工材料成材率，提高了纵剪材料使用率，降低了吨钢成本，减少了纵剪生产停顿，提高了效率。

本发明提供一种改善表面麻点缺陷的薄规格中低牌号无取向硅钢及其生产方法，成分C≤0.0025％，1.2≤Si≤1.65％，0.25％≤Mn≤0.35％，0.06％≤P≤0.11％，0.1％≤Als≤0.2％，S≤0.0025％、N≤0.0025％，Ti≤0.0025％，其余为Fe及不可避免的杂质。与现有技术相比，本发明采用较低氢气浓度，防止炉内氧化铁皮还原，减轻碳套辊的腐蚀程度，减少碳套辊结瘤率，改善带钢表面质量；采用合理合金成分设计，提高带钢的力学强度，降低碳套辊结瘤对带钢表面的影响程度，改善带钢表面质量。产品厚度为0.35mm，板面麻点发生率降低，无手感，且辊身周长周期范围内麻点个数≤5个。

在50Kg氧化镁坩埚真空感应炉上进行高硅电工钢的脱氧试验。结果表明,通过控制原料的成分、高真空下的碳氧反应和炉衬分解向钢液中的供氧,可使钢液的总氧含量≤15×10-6;在维持高温高真空条件下,当钢液中的反应达到一定程度后,延长精炼时间并不能降低钢液的总氧含量;完成精炼后加入硅钙合金沉淀脱氧可进一步降低钢液的总含氧量,但脱氧效果有限。 The test of high-silicon electric steel deoxidation has been carried out in 50Kg vacuum induction furnace with magnesium oxide crucible.Results show that the total oxygen could be ≤15×10-6in molten steel by controlling material components,carbon-oxygen reaction in high vacuum and oxygen contamination from crucible materials on molten steel;And when the reaction was carried through to a certain extent,total oxygen in molten steel could not be reduced by the extension of refining period in high va... 

本发明涉及一种无取向电工钢片绝缘涂液，它的主要有效成分包括有机树脂、水溶性磷酸二氢盐、硅溶胶、涂料助剂、和特定水溶性金属盐。上述各组分的质量组成比例为：有机树脂100份，水溶性磷酸二氢盐100‑250份，硅溶胶0‑100份、涂料助剂0‑20份，特定水溶性金属盐10‑50份，其余为水，涂液的固含量为15～40％。其中特定水溶性金属盐是指水溶性磷酸二氢盐以外的二价或多价金属盐，这种盐可以在磷酸二氢盐溶液中稳定存在，但是在电工钢涂层烧结温区会氧化或分解。本发明的绝缘涂液固化速度快且固化彻底，涂层具有优异的耐盐雾性能。

介绍了普通取向硅钢(CGO)和高磁感取向硅钢(Hi-B)铸坯高温加热两次冷轧、一次冷轧和铸坯低温加热两次冷轧、一次冷轧法4种成熟生产工艺的主要技术参数,取向硅钢理论研究(Goss晶核和抑制剂)和生产技术现状。取向钢的发展趋势为:提高(110)[001]晶粒取向度,降低取向硅钢铁损,发展铸坯低温加热(≤1 300℃)和薄板坯连铸连轧流程生产取向硅钢工艺。 Main technology parameters of four developed process:cast bloom higher temperature heating-double cold rolling or single cold rolling,lower temperature heating-double cold rolling or single rolling process for production of common grain oriented silicon steel(CGO) and high magnetic induction grain oriented silicon steel(Hi-B),theory research on grain oriented steel(Goss nucleus and inhibitor) and present situation of process are summarized in this paper.The development trend of grain oriented si...