硅钢资料

利用热模拟试验机、光学显微镜和X射线衍射仪对Fe-3.2%Si低温取向硅钢热轧工艺参数对组织及织构的影响进行了研究。结果表明,Fe-3.2%Si硅钢在1110℃粗轧、880℃终轧,轧后以10℃/s的速度冷却到550℃卷取,然后空冷到室温,热轧硅钢板沿板厚方向的显微组织不均匀性显著,对后续发展完善的二次再结晶有重要作用。无论是热轧板,常化板还是冷轧板,它们的织构集中分布在γ取向线上,γ取向线的织构除取向密度不同外,织构种类是一致的,这说明γ取向线上织构是有继承性的。从热轧到常化,织构取向密度显著减小,经二次冷轧后,织构密度又显著升高,可见,轧制变形有助于织构的形成并使织构强度升高。 The influence of hot-rolled process parameters on the microstructure and texture of Fe-3.2%Si low temperature hot rolled grain-oriented silicon steel were researched by hot simulation experiment machine,light microscope and X-ray diffractometer.The results show that,Fe-3.2%Si silicon steel is rolled by the technology with a temperature of rough rolling of1110℃,finish rolling of 880℃,coiling with the speed of 10℃ /s,and then cooled to room temperature with air.The microstructure of hot-rolled sil... 

采用经验设计法初步确定了取向硅钢铸坯感应加热线圈设计参数,应用Ansoft仿真软件分别对36组不同线圈高度、线圈内径的感应加热炉在不同频率下的三维整体磁场和铸坯的温度场进行了数值仿真。通过对比仿真结果,确定电磁场分布最佳的一组感应加热炉设计参数为线圈高度h=1.50 m、线圈内径D1=0.575 m、电流频率f=110 Hz。在该参数下应用Ansoft仿真软件对取向硅钢铸坯感应加热炉的温度场进行了仿真,结果发现温度场分布均匀,可满足取向硅钢铸坯加热要求。 The induction heating coil design parameters for the oriented silicon steel casting blank were determined preliminary by experience design method,and 36 groups three-dimensional electromagnetic field with different height and inside diameter of coil under different frequencies of the induction heating furnace and the temperature field of the casting blank were investigated by numerical simulation using Ansoft simulation software. By comparing the simulation results of electromagnetic field distr... 

本发明公开了一种硅钢氧化镁废水回用处理与污泥资源化工艺，包括：预过滤：氧化镁废水进入过滤容器，过滤得到的水，返回调节池中，直至预过滤澄清；过滤过程：氧化镁废水在预过滤阶段逐渐澄清后进入过滤程序，产生的过滤水满足要求后，自流入产水箱；滤饼干燥：停止过滤后，将过滤容器中的水排空至调节池，之后按照与过滤相同的方向通压缩空气，通过压缩使滤饼干燥；反吹排泥：滤饼干燥完成后，通反向的压缩空气，之后进入下一个过滤周期；经过处理后，过滤阶段产生的合格水循环利用；滤饼干燥后进一步进行资源化处理。本发明实现了废水回用；产生的沉淀污泥经处理后可分别作为钛白粉的生产原料和土壤改良剂，具有良好的社会效益和环境效益。

根据新日铁、JFE及浦项等国外钢铁公司2008年以来在日本专利局、欧洲专利局(EP)及世界知识产权组织(WIPO)申请公开的有关生产Hi-B取向电工钢典型专利技术,概述了近年来国外大型钢铁企业采用低温板坯加热(坯加热温度<1 280℃)技术生产Hi-B取向电工钢主要技术重点,即将调节关键化学成分Al、N、Sn及Sb等与工艺改进相结合。最后介绍了国外大型钢铁企业采用低温板坯加热技术生产Hi-B取向电工钢实例。 The latest developments on technology for manufacturing Hi-B grain oriented electrical steel sheets developed by Nippon Steel Corp.,JFE Steel and POSCO were described according to the patents published by World Intellectual Property Organization,Japan Patent Office and European Patent Office over the recent years.The low temperature slab heating process(particularly slab-heating temperature<1 280 ℃) together with suitably adjusting key chemical elements such as Al,N,Sn and Sb elements was the... 

招商证券建筑钢铁团队视频第三弹！本团队基于下方两篇电工钢行业深度报告推出本期...

简要介绍了宝钢无取向电工钢的发展历程、产品大纲、电磁性能控制情况,以及高附加值新产品的开发、应用情况。概述了近年来宝钢无取向电工钢生产技术进步,主要包括夹杂物控制技术、连轧机高牌号硅钢制造技术、同板差控制技术、环保涂层开发技术等。 This paper briefly summarizes the development history, product catalogue, and magnetic properties of non-oriented electrical steel sheets at Baosteel, as well as the development and application of high-value-added steel grades. Recent advances in manufacturing electrical steel sheets are also introduced, including technologies for controlling inclusion, producing high-grade steel strips by a tandem rolling mill, and controlling the transverse thickness difference of steel sheets, as well as the ... 

本实用新型公开了一种薄带取向电工钢的热处理炉板，炉板的中心设置有气流循环通孔，炉板的硅钢卷预定压接面设置有通气槽，炉板内设置有进气孔，进气孔的第一孔口设置于通气槽中，进气孔的第二孔口设置于炉板的侧壁上。该薄带取向电工钢的热处理炉板在设置通气槽的基础上，进一步设置进气孔，通过向进气孔中导入气流，增加通气槽的进气量，有助于硅钢卷与炉板压接侧边处水蒸气的及时排出，进一步提高卷内硅钢的热处理品质。本实用新型还公开了一种包含热处理炉板的薄带取向电工钢罩式炉。

本发明公开了一种弧形硅钢片、弧形硅钢片治具及弧形硅钢片制造方法；弧形硅钢片治具包括压制底板和侧挤压板，压制底板和侧挤压板之间具有挤压间隙，挤压间隙的两侧分别设置有位于压制底板内侧的外挤压面和位于压制底板外侧的内挤压面，外挤压面和内挤压面的对应位置上开设有若干齿槽加工台阶，压制底板的下方开设有若干与挤压间隙连通的焊接孔，压制底板和侧挤压板的侧面对应位置设置有贯穿压制底板和侧挤压板的冲压模孔；通过弧形硅钢片制造方法，采用弧形硅钢片治具制成弧形硅钢片。本发明采用弧形硅钢片治具及弧形硅钢片制造方法实现动子中弧形硅钢片的压制成型，通过弧形硅钢片实现直线电机的圆周运动或圆弧运动。

利用EBSD技术研究了电工钢中不同的柱状晶尺寸及退火工艺下{100}织构的演变规律。结果表明,初始晶粒尺寸的影响最显著。细小柱状晶热轧后经过常化处理,组织已均匀,但中心层有强{100}织构。粗大柱状晶中{100}织构的遗传性强,常化及中间退火后,中心层仍有粗大的以{100}取向为主的晶粒;脱碳退火后才能完成组织均匀化和织构梯度的弱化。常化时的升温速度也对织构演变存在影响,低的升温速度有利于{100}织构的保留,但升温速度的影响没有初始晶粒尺寸及退火次数的影响显著。细小柱状晶样品经过热轧及三次退火工艺适合制备取向电工钢。 Evolution of {100} texture of different columnar grains and annealing process was investigated in electrical steels with the help of EBSD technique.The results show that the effect of initial grain size is the strongest.The initial fine-grained specimen shows uniform microstructure after the normalizing process,while {100} grains appear preferentially in the central layer of sheets.The heredity of {100} texture in the initial coarse-grained specimen is more significant.{100} mainly-oriented coar... 

本发明涉及一种超纯净无取向冷轧硅钢中非金属夹杂物形貌的原位观察方法，包括如下步骤：制备无取向冷轧硅钢样品，将待测试面用打磨至1000#，使样品表面平整光滑，并进行机械抛光和表面清洗。对处理好的样品在电化学工作站上进行电化学腐蚀，电解液为：1~8wt%氯化物MCl溶液，余量为去离子水，通入CO2气体至饱和，加入适量NaHCO3和三乙醇胺作为稳定剂调节pH值将其稳定在6.0~6.5之间。电化学设定参数：开路：0.5~2h，动电位极化测试：扫描速率:0.1mV/S~1.0mV/S，测试区间：VS.SCE‑0.8V~0.2V，测试温度为：10~25℃。取不同区间内做完电化学腐蚀的样品用去离子水冲洗，吹干。通过扫描电子显微镜+能谱仪对非金属夹杂物的形貌进行原位观察和成分分析。

研究了激光加热辅助圆盘剪高速切割技术,以解决现有冷轧生产线硅钢切边技术存在的微裂纹、应力、毛刺和边浪等问题。建立了激光加热温度场有限元分析模型,根据生产线上圆盘剪加工的实际过程,探讨了数值模拟中热源的加载形式,研究了激光对板材进行辅助加热时各个工艺参数如激光功率、光斑尺寸以及激光入射角度对切割工艺的影响,并通过实验对工艺参数进行了优化。最后,进了验证实验。实验结果显示:当激光加热点运动至圆盘剪刃口位置时,温度为100℃左右,此时材料硬度降低到原有硬度的70%~80%,降低了切削力,减少了圆盘剪的磨损,可有效提高圆盘剪的寿命。 Laser assisted trimmer side cutting technology was studied to overcome the problems such as micro cracks,stress,burrs and edge waves existing in a cold rolling production line of silicon steel side cutting.A finite element analysis model for the laser hearting temperature field was established, the loading form of a heating source was determined and influences of various processing parameters like laser powers,spot sizes,and laser incident angles on laser assisted heating sheet materials were di... 

以轻烧氧化镁粉为原料,经消化、碳化制得重镁水,在热解反应前采用络合剂对重镁水中的杂质钙、铁进行络合掩蔽,再经热解得到碱式碳酸镁,碱式碳酸镁经煅烧可制得钙、铁杂质含量较低的氧化镁。在重镁水络合除杂过程中,考察了络合剂三乙醇胺、柠檬酸、草酸单独和复合使用的除铁、除钙效果。以三乙醇胺为络合剂时,在200 mL重镁水中加10 mL三乙醇胺(1∶1),氧化镁产品中w(氧化镁)=99.3%、w(氧化钙)=0.31%、w(氧化铁)=0.042%;使用草酸和柠檬酸作为复合络合剂时,在200 mL重镁水中加入1.0 g柠檬酸和2.0 g草酸,氧化镁产品中w(氧化镁)=98.2%、w(氧化钙)=0.24%、w(氧化铁)=0.030%。 Light-burned magnesia as a raw material was hydrated and carbonated to obtain magnesium bicarbonate liquor.Before the pyrolyzing of magnesium bicarbonate liquor,complexants were used to cover Fe and Ca impurities.Then the treated liquid was pyrolyzed to obtain basic magnesium carbonate which was calcined to magnesium oxide with low calcium and iron content.During the complexing purification of magnesium bicarbonate liquor,the Fe and Ca removing effects of single or compound complexing agents,suc...