硅钢资料

介绍了电工钢生产线连退机组的表面处理工艺,特别是电解清洗系统的工作机理、设备构造、生产工艺及各种影响因素。 This paper introduces the technology of surface treatment of continuous annealing unit in electrical steel production line,in particular the working mechanism,structure of equipment,production techniques and various influence factors of the electrolytic cleaning system. 

热轧轧制工艺对产品性能和轧制稳定性影响很大,对中低牌号无取向电工钢,当在两相区轧制时,热轧塑性明显降低,板形变坏,易出现边裂等情况。以50W1000为例,通过对其变形抗力进行研究,得出把两相区控制在F4与F5之间为最佳轧制工艺的结论。在此基础上制定了一套较为合理的热轧工艺制度。采用新的轧制工艺后,50W1000热轧精轧的稳定性明显改善,热轧产品合格率由开发初期的40%左右提高到95%以上。 The hot rolling process has great influence on product′s performance and rolling stability.For the low medium grade non-oriented electrical steel,when non-oriented electrical steel is rolled in tow phase region,the hot rolling plasticity reduces obviously,the shape of strip goes bad and easily to crack at the edge.The deformation resistance of 50W1000 steel was investigated.The results show that the optimal rolling process is to control the two phase region between F4 and F5.Based on the results... 

【作者】 李波； 杨晓江； ...

对CSP流程生产的高磁感无取向电工钢50W1300在偏离轧制方向不同角度处的磁性能进行了测试和分析。结果表明:在偏离轧向不同角度处,磁性能差异显著,尤其在α=60°时磁感最低;偏离轧制方向不同角度处的磁性能大小取决于织构类型、强度及分布状态;增强{100}<0vw>和α、η取向的有利织构组分,降低不利的γ取向织构组分,且使有利织构组分分布越漫散,磁各向异性越小。 Magnetic properties of high magnetic induction non-oriented electrical steel 50W1300 produced by CSP processes were investigated with different direction in relation to the rolling direction.The result shows that magnetic properties are significantly different in relation to the rolling direction,in particular,the minimum magnetic induction occurs at 60° in relation to the rolling direction.Magnetic properties of different directions in relation to rolling direction depend on type and distributi... 

采用中、厚板坯生产技术对取向硅钢进行了研制和开发,对热轧及后工序样品进行了金相组织观察和EBSD分析,探讨了两种组织及织构的差异性,研究结果表明:除高温退火样品外,中板坯生产的取向硅钢各工序样品平均晶粒尺寸大;厚板坯生产的取向硅钢热轧和常化样品亚表层Goss织构强;中板坯和厚板坯的脱碳退火板织构没有明显区别。中板坯生产的取向硅钢成本低,产品磁性能和质量与厚板坯相当。 Grain oriented silicon steel was researched and developed by medium thickness slab and thick slab.Microstructures observation and EBSD analysis to the samples of hot rolling and following processes were carried out,respectively.The differences between the two kinds of microstructures and textures were discussed.The results show that the average grain sizes of every process samples are larger except that of high temperature annealing samples of grain oriented silicon steel produced by medium thic... 

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。

本发明公开了一种无取向电工钢清洗工艺，包括以下步骤：1)在脱脂剂箱体中添加脱脂剂溶剂，通过喷射泵将脱脂剂分别从上下两路管道喷出，经过流量控制电磁阀进入喷射梁，通过喷嘴喷洒在带钢表面；2)带钢轧制后温度为100～150℃，速度为600～1000m/min，带钢表面高温确保脱脂剂与带钢表面残留油脂反应充分，且在高速下喷射的脱脂剂与带钢相向而行，使带钢表面反应后残留硅泥、铁粉被迅速带走；3)喷射后的脱脂剂流入收集槽中，通过泵重新打入脱脂剂箱体中，实现脱脂剂的循环利用。其利用轧制时产生的高温及高速对带钢表面残留乳化液斑迹、铁粉、硅泥进行清洗，清洗彻底高效。

绝缘涂层可以有效提高硅钢片的耐蚀、耐腐、磁、绝缘等性能，因此取向硅钢涂装绝缘涂层是取向硅钢生产过程中重要的一环。本文对取向硅钢含铬无机绝缘涂层以及氮化铬涂层的性能优缺点进行了介绍，并对国内无机含铬取向硅钢绝缘涂层及氮化铬涂层的研究现状进行了综述。最后对未来含铬无机绝缘涂层的研发方向进行了展望。 Insulation coating can effectively improve the corrosion resistance of silicon steel sheet, such as corrosion, magnetic, insulation performance, thus oriented silicon steel insulation coating is the important part of oriented silicon steel production process. In this paper, the inorganic insulation coating oriented silicon steel containing chromium and chromium nitride coating performance advantages and disadvantages are introduced.In addition, the research status of insulation coating and chrom... 

对熔融态钢液进行处理,研究了电脉冲对于取向硅钢凝固组织的影响作用,利用正交试验法研究了脉冲电容、频率、处理时间和电压等脉冲参数的作用效果。结果表明:电脉冲对钢锭晶粒组织具有明显的细化作用,凝固组织的等轴晶比例大幅上升,影响等轴晶比例的最显著性因素为脉冲频率,最优正交试验参数为电容1 200μF,脉冲频率1 Hz,处理时间5 s,脉冲电压800 V。随着输入能量的增大等轴晶率先增大后减小,脉冲输入能量为某值时,等轴晶率最大,利用经典形核理论和热力学对这一现象进行了解释。 The influence of electric pulse on the solidification structure of oriented silicon steel was investigated by applying electric pulse in molten steel.The affection due to different electric pulse parameters such as electric capacity,frequency,applied time and voltage was studied by orthogonal design test.The result showed that solidification structure of oriented silicon steel could be improved by the electric pulse,and the equiaxed crystal ratio increased obviously.The most influential paramete... 

对取向硅钢熔融态钢液进行处理,对比研究了不同脉冲参数的作用效果。结果表明,电脉冲对钢锭晶粒组织具有明显的细化作用,凝固组织等轴晶比例大幅上升。在脉冲电容、频率、处理时间和电压中,影响等轴晶比例的最显著性因素为脉冲频率;最优正交实验参数为:电容1 200μF,脉冲频率1 Hz,处理时间5 s,脉冲电压800 V;随着输入能量的增大,等轴晶率先增大后减小,脉冲输入能量为某值时,等轴晶率最大,通过经典形核理论和热力学对这一现象进行了解释。 Research on the influence of the electric pulse on the solidification structure of oriented silicon steel was preformed.Electric pulses in different parameters were applied to molten steel and results were compared.The result shows that solidification structure of oriented silicon steel can be improved by the electric pulse,and the equiaxed crystal ratio increases obviously.Among the four parameter factors of electric capacity,frequency,applied time and voltage,the most effective factor is frequ... 

本发明公开了一种去除无取向硅钢夹杂物的方法，在中间包预设脉冲电流装置，将所述脉冲电流装置的正极连接在上挡渣堰处，负极连接在下导流坝处，在钢水浇注过程中，施加电脉冲处理即可。本发明基于中间包钢水流场的研究，在中间包上挡渣堰和下导流坝之间施加脉冲电场，扩大了脉冲电场作用的钢水区域，且随着钢水流场运动，流场与脉冲电场相互作用，使得细小的SiO2和MnS夹杂物在钢水运动过程中更有效的碰撞、聚集、长大，并有充足的时间充分上浮，从而达到有效去除铸坯夹杂物，降低铸坯中S和O含量，大幅提高钢水纯净度，进而提高硅钢成品磁性能。

一种无取向性电磁钢板：以质量％计其母材的化学组成为：C：0.0010～0.0040％、Si：4.0～5.0％、Mn：0.20％以下、Al：0.010％以上且不足0.050％、P：0.030％以下、S：0.0030％以下、N：0.0005～0.0030％、O：0.0100～0.0400％、Ca：不足0.0010％、Ti：不足0.0050％、Nb：不足0.0050％、Zr：不足0.0050％、V：不足0.0050％、Cu：不足0.20％、Ni：不足0.50％、Sn：0～0.05％、Sb：0～0.05％、剩余部分：Fe和杂质；从母材表面到深度方向10μm的位置为止以外的区域中的O含量不足0.0050％。