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双语推荐：硅钢

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利用Gleeble-3500热模拟试验机对退火取向硅钢和无取向硅钢进行高温拉伸试验,测试硅钢在高真空度下的真应力-真应变曲线。结果表明:随着退火温度的升高,硅钢试样的屈服强度和抗拉强度呈现先增大后减小趋势;取向硅钢在900℃的高温退火后的塑性最好;拉伸温度在750℃以上时,抗拉强度都大大降低;断面收缩率随着温度的升高先增加后明显下降。
High temperature tensile tests on annealing oriented silicon steel and non-oriented silicon steel by using Gleeble-3500 thermal simulation testing machine, the true stress-strain curve has been get by the test of silicon steel in the high vacuum. The results show that, with the increase of annealing temperature, the yield strength and tensile strength of steel specimens first increased and then decreased. The plasticity of oriented silicon steel after high temperature annealing at 900℃was best. When the tensile temperature was higher than 750℃, the tensile strength decreased greatly. Shrinkage value of across the grain decreased sharply with the temperature rising.

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为减少高硅钢铁芯叠片间的涡流损耗，以磷酸二氢铝、苯丙乳液、甘油及水为主要原料，制备出一种适合高硅钢用无铬环保半有机绝缘涂层．利用光电子谱仪、扫描电镜及能谱仪对高硅钢脱碳退火板的氧化薄膜、绝缘涂层的微观结构形貌及部分缺陷进行分析，并研究了该涂层的涂覆量对其附着性、硬度及绝缘性能的影响．研究结果表明：普通无取向硅钢磷酸盐环保半有机绝缘涂层同样适用于高硅钢；绝缘涂层的均匀性取决于高硅钢片表面的平整度、涂辊表面质量以及对涂覆速度的平稳控制；高硅钢的表面粗糙度及氧化膜厚度对绝缘涂层的附着性有着重要影响；本试验制备的半有机涂层每面涂覆量控制在0．8～1．2 g／m2，具有良好的附着性及绝缘性能，层间电阻在5Ω·cm2／片以上．
To reduce eddy current loss between the core lamination of high silicon steel, a kind of chromium?free environment friendly inorganic?organic insulation coating was prepared by Al(H2PO4)3, St-BA emulsion, glycerol and H2 O. The oxide film of decarburization annealed high silicon sheet, the microstructure and defects of the coating were analyzed by X?ray photoelectron spectroscopy(XPS), scanning electron microscope (SEM) and energy dispersive spectroscopy ( EDS ) . The effects of coating weight on the adhesiveness, hardness and insulating properties were studied. The results show that the phosphate inorganic?organic insulation coating for non?oriented silicon steel can also be suitable for high silicon steel. The uniformity of the insulating coating depends on the surface flatness of high silicon steel, the surface quality of coating roll and the controlling coating speed. The surface roughness and thickness of oxide film of high silicon steel have influences on the adhesivene

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基于物理气相沉积(PVD)之直流磁控溅射镀膜技术在低硅钢薄板双面共沉积富 Si 膜,然后高温真空扩散处理使 Si 渗入低硅钢基体,提高基体含 Si量.以沉积Fe5 Si3膜＋1180℃×1 h 扩散为1回合增Si处理,研究了多回合循环增Si处理过程硅钢基体组织结构与性能的演化机理.采用光学显微镜对样品进行了金相分析,采用扫描电镜(SEM)观察了样品的微观组织形貌,并用能谱分析仪(EDS)进行成分分析.用X射线衍射仪(XRD)和透射电镜(TEM)表征了样品的结构特征.经过4回合循环增 Si 处理可将0．35 mm厚低硅钢基体含 Si 量由3％提高到6．5％,且沿厚度方向 Si 浓度分布均匀.相比于初始态低硅钢基片,PVD法制成6．5％Si 高硅钢中高频铁损值降低40％~50％.
Si-enriched films were deposited by DC magnetron sputtering onto both surfaces of low-Si steel sub-strate with 0.35 mm thickness,subsequent annealing in vacuum at 1 180 ℃×1 h results in penetration of Si into the substrate.The microstructure and Si concentration were investigated by optical microscopy and scanning e-lectron microscopy (SEM)and energy dispersive spectrometer (EDS).The phases were identified by X-ray dif-fractometer (XRD)and transmission electron microscope (TEM).With the increment of Si content by penetra-tion of Si,the substrate still exhibited a-Fe(Si)bcc and the lattice constant decreased slightly.After 4 rounds of the Si-enriched process,the alloys demonstrated uniform distribution of Si with 6.5%.Iron losses of the pre-pared Fe-6.5% Si alloy were declined about 40%-50% comparing with the starting substrate.

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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 meet the energy-saving, the environmental protection and the high efficiency, the non-oriented silicon steel increasingly develeps to the direction of energy-saving, low consumption, no polution, multifunction, high effciency and easy processing and so on.

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在实验室模拟CSP工艺条件下制备了取向硅钢,研究了二次冷轧中间退火工艺对组织和织构的影响。结果表明,中间退火温度对取向硅钢脱碳,高温退火组织及织构均产生明显影响。经940℃中间退火后,取向硅钢脱碳再结晶晶粒较850℃中间退火的多,且再经高温退火处理后,晶粒粗化,最大晶粒尺寸达4.8 mm;高斯织构组分密度达27.00,较850℃中间退火试样高。
Grain-oriented silicon steel was prepared by simulated CSP technology in laboratory .Effects of secondary cold-rolled intermediate annealing on microstructure and texture were studied .The results show that intermediate annealing has obvious effects on the microstructure and texture of the steels after decarburization annealing and high temperature annealing . After intermediate annealing at 940 ℃, recrystallized grain of decarburization annealed steel is more than that of intermediate annealed at 850 ℃, and then annealed at high temperature, the recrystallized grain size is coarsed and the maximum grain size is about 4.8 mm, Goss texture strength is 27.00 that higher than that of intermediate annealed at 850 ℃.

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应用 CAFE 法对6．5％Si 高硅钢铸锭凝固组织进行了模拟研究，确定出了适合高硅钢组织模拟的模型.进一步用该模型研究了过热度及冷却条件对凝固组织的影响，结果表明，随着过热度的降低，凝固组织中柱状晶比例和晶粒平均面积均减小.水冷条件下，高硅钢铸锭凝固组织几乎全是柱状晶，而且晶粒粗大.空冷条件下，等轴晶区扩大，但柱状晶仍占主要部分.缓冷条件下，等轴晶区占主要部分，晶粒平均面积和空冷条件下相当.
The solidification structure of 6.5%Si steel ingot was simulated based on CAFE method and the model suitable for simulating the structure of high silicon steel wad ascertained.The influence of superheat and cooling condition on the solidification structure were studied.It was shown that with the superheat decreasing,the pro-portion of columnar crystals decrease,and the average grain size become smaller.Under water cooling condi-tion,the solidification structure of casting was composed of almost all coarse columnar grains.Under air cooling condition,equiaxed grains zone expanded,while columnar grains still account for the main part of the structure. Under slow cooling condition,equiaxed grains account for the main part of the structure and the average grain size was basically the same with those under air cooling condition.

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就冷轧硅钢废水处理生产中面临的主要问题进行分析，从技术角度及运行管理角度提出工艺优化升级改进措施及应对策略；同时从后续深度处理，逐步实现零排放目标的角度进行探讨，为冷轧硅钢废水减量化、出路乃至废水零排放提供一些思路。
The main problems in the wastewater treatment process of cold-rolled silicon steel lines are analyzed and process upgrading measures and optimization strategy are put for-ward from both technical and management views. At the same time, downstream deep treat-ment to gradually achieve the target of zero discharge is discussed, to provide some ideas for reduction or even zero discharge of wastewater from cold-rolled silicon steel lines.

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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 distribution , the optimal parameters of the induction heating furnace were determined .The coil height h is 1.50 m, the coil inside diameter D1 is 0.575 m, and the current frequency f is 110 Hz.The temperature field for oriented silicon steel casting blank induction heating furnace is gained using Ansoft simulation software under the parameters of the simulation .A uniform temperature field distribution is obtained which can meet the heating requirements of the oriented silicon steel casting blank

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通过热力学计算与模拟试验研究了含钒钛取向硅钢中氮化物析出相的析出规律与析出行为,并探讨了含钒钛元素的氮化物析出相作为薄板坯连铸连轧流程制备取向硅钢中辅助抑制剂的可行性.研究表明,在所冶炼的含钒钛取向硅钢的成分范围内,Ti N在钢液凝固末期便具备析出的热力学条件,而Al N与VN只可能在凝固后的α+γ或α+Fe3C两相区内析出.含钒钛取向硅钢中氮化物析出相以成分复杂的复合析出相为主,且随着钒钛加入量的增加,钢中抑制剂析出相总的分布密度由于含钒钛元素的氮化物析出相的增加而明显提高,使抑制剂抑制初次再结晶晶粒正常长大的能力得以加强,最终成品的磁感应强度值B8由1.857 T提升至1.898 T.同时,加入不高于0.007%的Ti与不高于0.005%的V不会影响中间脱碳退火工序的脱碳效果以及高温退火净化阶段硫、氮的脱除效果,其形成的含钒钛元素的纳米级氮化物析出相适合作为薄板坯连铸连轧流程制备取向硅钢的辅助抑制剂.
The precipitation behavior of nitride precipitates in grain-oriented silicon steel containing vanadium and titanium elements produced by thin slab casting and rolling process was studied by thermodynamic calculation and simulation experiment. The feasibility of nitride precipitates containing V and Ti elements as auxiliary inhibitors was also investigated. It is found that TiN is likely to precipitate at the final stage of solidification in the grain-oriented silicon steel, but VN and AlN can precipitate only in the two-phase region after solidification. Nitride precipitates in the grain-oriented silicon steel are mostly compound precipitates with complex chemi-cal composition. Meanwhile, with increasing V and Ti contents, the distribution density of total inhibitors is significantly improved due to the increase in amount of nitride precipitates containing V and Ti elements. The inhibiting ability of inhibitors which restrain the normal growth of primary recrystallization gra

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研究表明,硅钢中的夹杂物对成品带钢的磁性能有显著影响。为研究冶炼过程硅钢中的夹杂物遗传变化,进而提出更有效的控制措施加以去除,本文结合典型的无取向硅钢生产炉次,采用非水溶液电解提取+扫描电镜观察方法分析冶炼过程中上述炉次典型试样的夹杂物。结果表明:转炉冶炼结束、RH精炼开始时,钢的氧化物夹杂总量最大,约为0.23%;RH精炼过程中,氧化物夹杂总量不断降低,并在脱碳结束时达到最低,约为0.02%;连铸过程中,氧化物夹杂总量仍有不断降低趋势,但夹杂物的平均尺寸变化不大。本试验条件下,中间包试样的夹杂物数量约为1.59×104个/mm3。
As we all know, the non-metallic inclusion effects magnetic properties of silicon steel sheets obviously. The article aims to study the heredity of non-metallic inclusion in non-oriented silicon steels during the steel making process, and then provides a more effective controlling measure to remove the inclusions. Based on the typical non-oriented silicon steel charges, the non-aqueous solution extraction and SEM observation were adopted to analyze the non-metallic inclusions. Results show that, the total oxide reaches the maximum 0.23% at the beginning of RH refining, then decreases gradually, and reaches the minimum 0.02% during the RH refining process. The total oxide inclusion decreases continuously during the CC casting, but the average size of inclusion is nearly stable. In the present work, the total inclusion amount in tundish is about 1.59×104/mm3.

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