硅钢资料

【作者】 杨佳直； ...

对低温法生产的以AlN为主抑制剂的Hi-B取向硅钢高温退火过程进行了中断实验,借助EBSD及TEM技术对高温退火连续升温过程中织构与析出物的演变进行了研究。实验结果表明,800℃时ODF图出现高斯织构组分,但强度很弱,高斯晶粒偏离角在10°以上;950~1 000℃时高斯晶粒异常长大,偏离角3~6°;高温退火过程析出物主要有球形、规则立方形及不规则多面体形3种形貌,由于渗N的影响,Zener因子先增大再减小,并且析出物在高斯晶界前沿优先粗化。 The annealing process at high temperature of Hi-B silicon steel using low slab reheat temperature and with AlN as the inhibitor has been studied by interrupting test,and the evolution of texture and precipitates during continuous heating-up in the annealing process at high temperature was analyzed by EBSD and TEM. The results showed that Goss texture appears in ODF at 800 ℃,but the intensity of Goss texture was very weak and the deviation angle was more than10°. Goss grains grow abnormally durin... 

一种低温高磁感取向硅钢的热轧方法：经转炉冶炼并浇注成坯；对铸坯加热后进行粗轧：首先确定粗轧减宽量；根据所确定的粗轧减宽量进行粗轧；进行精轧；常规进行下工序。本发明采用低温板坯加热技术，降低了板坯烧损和修炉负担，且边裂发生率比现有技术的不低于18%的基础上能降低5%以上，由此节约资源及降低能耗。

晶界和{100}柱状晶在硅钢生产过程中对织构的遗传和演变有关键作用,因此本文利用晶体塑性有限元方法进行立方和旋转立方取向双晶在晶界不同位向时晶体取向演变的全场模拟。模拟显示,三种晶界位向下,晶界都具有诱发晶内产生S形状形变不均匀和缓解局部形变不均匀区取向转动的特点,立方和旋转立方取向双晶在带有剪切作用的轧制条件下都显示明显的取向稳定性。GB⊥RD(表示晶界垂直于轧向)晶界位向时,旋转立方取向晶粒优先在晶界中心位置发生取向转动,而立方取向则优先在远离晶界的端部发生取向转动。GB⊥TD(表示晶界垂直于横向)的晶界位向下,其晶界阻碍作用最小,双晶内产生的取向漫散度大,织构强度较低;除绕TD转动外,也具有复杂的绕RD、ND的取向转动。GB⊥ND(表示晶界垂直于法向)的晶界位向下,取向转动与GB⊥RD时相近,但有少量取向绕ND转动。 Grain boundaries and initial{100}columnar grains play a key role in the inheritance and evolution of texture in the production of electrical steels.In this paper,the crystal plasticity finite element method was used to simulate the grain orientation evolution of cube and rotated-cube oriented bicrystals when grain boundary was set to different orientations.It was shown that the grain boundary in three grain boundary orientations demonstrated the characteristics of inducing Sshape deformation inh... 

本发明公开了一种超薄取向硅钢用的半有机绝缘涂料。该半有机绝缘涂料，按质量百分比计，包括以下组分：10～25％磷酸盐，1～10％含有环氧基的硅烷耦合剂，0.2～2.0％有机硅烷，1～10％铬酐，1.5～6％二氧化硅粒子，0.3～5％碱，余量为水；其中二氧化硅粒子的粒径为100～300nm。该半有机绝缘涂料应用于超薄取向硅钢表面时，既提高了涂层与基体的附着性，又保证了涂层的绝缘性和耐热性，涂层附着性为A级，叠片系数大于0.96，可耐900℃高温，并且涂层较薄(小于1μm)时，钢板的绝缘电阻大于30Ω·cm2/片，绝缘性能优异，可满足超薄取向硅钢的应用需求。

变压器D21硅钢铁芯片采用冲压工艺生产。首先对其工艺进行了分析,确定了冲压方案。对产品进行了排样设计,计算了冲压力,确定了压力中心。然后,设计了单工序落料模具,完成了模具装配图。 D21 silicon steel chips for transformer are produced by stamping.First,its stamping process was analyzed and the scheme of the stamping process was determined.The product layout was designed,the punching pressure was calculated,the pressure center was determined.Then,the blanking die with single procedure was designed,the die assembly drawing was completed. 

试验研究了0.3 mm取向硅钢冷轧板(/%:0.046C,3.07Si,0.09Mn,0.029P,0.004S,0.005A1)的退火温度(760~880℃7 min)和退火时间(820℃3~9 min)对该钢的晶粒尺寸,再结晶和织构的影响。结果表明,最佳初次再结晶退火工艺为820℃5 min,该钢的平均晶粒尺寸为14.20μm,完全再结晶率为92%,不利{111}<110>结构含量为3.16%,有利织构{111}<112>,{012}<001>和高斯织构含量分别0.40%,4.73%和2.46%。 The effect of annealing temperature(at 760 ~ 880 X.for 7 min) and time(at 820℃ for 3~9 min) on grain size,recrystallization rate and texture of 0.3 mm cold-rolled sheet of oriented silicon steel(/%:0.046C,3.07Si,0.09Mn,0.029P,0.004S,0.005Al) has been tested and studied.Results show that with optimum recrystallized annealing at 820℃ for 5 min,the silicon steel average grain size is 14.20 fun,the complete recrystaUization rate is 92%,the unfavourable-texture {111}< 110 > content in steel is ... 

主要研究了氧化锌对以Al(H2PO4)3为基料的无铬无取向硅钢绝缘涂层各项性能的影响.用盐雾实验和动电位极化研究了不同氧化锌含量对硅钢绝缘涂层的耐蚀性和电化学行为的影响.采用SEM和体视显微镜对涂层的表面形貌和附着性能进行研究.结果表明,氧化锌含量为4.0%时,氧化锌能完全中和涂层表面的游离磷酸,涂层的耐蚀性和附着性最好;氧化锌含量过少或过多时,涂层的耐蚀性和附着性都较差. This paper studies the influence of zinc oxide on the performance of chromium-free non-oriented silicon steel insulating coating which based on aluminum dihydrogen phosphate.Salt spray experiment and potentiodynamic polarization were used to study the influence of zinc oxide content on the corrosion resistance and electrochemical behavior of the insulation coating of silicon steel.The surface morphology and adhesion of coating were tested by SEM and stereo microscope.The results show that when t... 

本发明提供虽然为薄壁但磁特性优异的方向性电磁钢板的制造方法。本发明的一个方案提供一种方向性电磁钢板的制造方法，其包括热轧工序、任选的热轧板退火工序、酸洗工序、冷轧工序、一次再结晶退火工序、成品退火工序和平坦化退火工序，在酸洗工序中，使用包含0.0001g/L～5.00g/L的Cu的酸洗溶液，冷轧钢板的板厚为0.15mm～0.23mm，一次再结晶退火工序的升温工序中的30℃～400℃的温度区域的平均升温速度超过50℃/秒且为1000℃/秒以下。

本发明提供一种退火隔离剂及退火隔离剂悬浮液的制备方法与无底层低温高磁感取向硅钢的制备方法。所述退火隔离剂按照重量份包括如下组分：CaO：1‑5份，Al2O3：50‑58份，Ca(AlO2)2：1‑5份，MgO：30～38份，添加剂：1‑2份。本发明的退火隔离剂不仅能够起到高温退火时钢板之间的隔离作用，而且能够在升温过程中保护抑制剂对二次再结晶晶粒的抑制能力，确保二次再结晶晶粒稳定长大，成品磁性能优异，进而稳定制备出表面光洁，边部完全无底层的低温取向硅钢成品。

本发明公开了叠片装置，以及采用该叠片装置的硅钢片收料设备，包括分料装置和本发明第一方面实施例的叠片装置，分料装置包括有分料件、上分料传送带和下分料传送带，上分料传送带的一端和下分料传送带的一端与分料件连接，分料件用于将硅钢片分别输送至上分料传送带和下分料传送带，本发明第一方面实施例的叠片装置，叠片装置的数量为两个，两个叠片装置上下平行设置，并且分别与上分料传送带和下分料传送带的远离分料件的一端连接。根据本发明的叠片装置，以及采用该叠片装置的硅钢片收料设备，可实现硅钢片的自动叠片，提高生产效率。

介绍了烟气余热利用系统的工艺流程及控制思想,结合该系统在钢厂硅钢连续退火机组中的应用实践,估算出烟气余热利用系统每年可节约蒸汽5 040 t,经济效益良好,同时分析了该系统存在的问题及对策。 Introduced a method about the process and control of the application of waste heat system, which had been used into a silicon steel continuous annealing line and profiting a good economic benefit by saving a large number of steam every year, which has been estimated about 5 040 tons, and analyzed the problems and solutions existed in this system.