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用还原分离-原子荧光光谱法分析了硅钢中的痕量汞.分析方法的不确定度主要来自测量重复性,样品溶液浓度,工作曲线变动性,标准溶液,移取、配制标准溶液,仪器变动性等.文章分别对上述构成合成不确定度大小的分量进行了计算讨论. Trace mercury in silicon steel and galvanized sheet was analyzed by adopting reduced separation-atomic fluorescence spectrometry.The uncertainty of the analysis method mainly comes from measurement repeatability,sample concentration,working curve volatility,standard solution,pipetting and preparation of standard solution,and instrument variability,etc.The essay conducted all calculations and discussions on the above components that determine uncertainty. 
2013-05-28 202 5.8

本发明公开了一种硅钢产品生产方案的智能设计评估方法,包括以下步骤:1、采集数据,并集成用户数据、实验室研发数据和大生产数据;2、构建用户数据主题、实验室研发数据主题和大生产数据主题;3、输入硅钢产品的种类、规格和性能需求的需求信息,并根据需求信息生成若干个硅钢产品的生产方案,生产方案包括优化产品的生产方案和新产品的生产方案;4、多维度综合评估步骤3中生成的每个硅钢产品的生产方案,得到硅钢产品生产方案的绿色设计指数,并根据绿色设计指数推荐生产方案。本发明基于产品设计需求,融合实验研发数据和大生产数据,生成并评估产品设计方案模型,缩短研发周期,提高研发效率。
2021-07-09 202 6.8

根据本发明的一个实施例的取向电工钢板,其中存在于电工钢板表面的沟槽以及与沟槽底部相连的再结晶和其他再结晶的平均取向度差为0.5°至10°。
2020-12-18 202 6.8

本发明是关于一种薄规格无取向硅钢35BW440,该无取向硅钢35BW440包括以下质量百分比的元素:C:≤0.003%,Si:0.8%‑2.0%,Mn:0.4%‑1.2%,P:≤0.015%,S:≤0.003%,Als:0.25%‑0.6%,N:≤0.003%,Sb:0.04%‑0.1%,O:≤0.0025%,其余为Fe及不可避免的杂质。在没有电磁搅拌设备增加无取向硅钢磁感应强度的前提下,通过加入Sb元素,增加对电磁性能有利的{110}和{100}织构组分,提高电磁性能,采用二次冷轧及中间连续退火的工艺,提高无取向硅钢的表面质量。
2021-04-19 202 6.8

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,... 
2014-05-28 202 5.8

本发明属于涂料技术领域,具体公开了一种用于取向硅钢的无铬无机绝缘涂料,包括以下重量份配比的原料:小颗粒硅溶胶10‑50份、大颗粒硅溶胶10‑50份、磷酸二氢铝溶液5‑50份、助剂0.1‑10份及水10‑100份。本发明还提供了一种用于取向硅钢的无铬无机绝缘涂料的制备方法,通过将小颗粒硅溶胶和大颗粒硅溶胶混合均匀成硅溶胶混合液后加水得到混合硅溶胶水溶液;再依次向其中加入磷酸二氢铝和助剂并持续拌至均匀,得到用于取向硅钢的无铬无机绝缘涂料。本发明提供的无铬无机绝缘涂料适用于取向硅钢,使取向硅钢环保无害的同时具有与含铬取向硅钢相当的耐腐蚀时效,从而实现取向硅钢产业绿色化并大大改善取向硅钢的综合性能。
2021-05-28 202 6.8

通过固溶度积公式计算及热模拟实验,对不同热装和加热温度条件下的无取向硅钢铸坯中析出相进行了研究.在低于950℃热装时,铸坯中AlN的析出量和尺寸不再变化,但MnS和AlN-MnS的数量及平均尺寸随着热装温度降低而进一步增加,并在温度低于600℃时达到最大值后保持不变.与1200℃相比,1100℃加热的铸坯中AlN、MnS的总固溶量相对更少.相比850℃热装,600℃热装再加热到1100℃的铸坯中AlN和MnS的总固溶量更少,且AlN和MnS尺寸更大.合适的热装温度和加热温度分别为600℃和1100℃. Based on solubility product calculation and thermal simulation experiments,precipitated phases in continuous casting slabs of non-oriented silicon steel were systematically studied at different hot charging and heating temperatures.When the hot charging temperature is below 950 ℃,the content and size of AlN remain unchanged,but the quantity and size of MnS and AlN-MnS increase when the hot charging temperature decreases,reach maximum and remain unchanged when the hot charging temperature is belo... 
2013-08-28 202 5.8

采用EBSD检测技术,分析了50W800无取向电工钢在重要生产工序间织构的演变以及织构沿带钢宽度方向上的差异性。结果表明:热轧板织构沿带钢宽度方向上的差异性主要体现在表层织构。带钢边部表层织构主要由旋转立方织构、α纤维织构以及少量的γ纤维织构组成,带钢宽度1/4处的表层织构主要存在高斯织构,带钢宽度1/2处的表层织构主要为(110)面织构以及少量的铜型织构。各处的带钢宽度1/4处和1/2处的织构类型基本一致,都以α纤维织构和旋转立方织构为主。冷轧后,各处的表层织构类型差异较小,均为γ纤维织构和α纤维织构。由板宽边部至中心处织构强度值逐渐降低。退火后,各处织构的组分基本一致,为较强的γ纤维织构和较弱的(100)面织构。各处织构强度值差异较小,变化趋势与冷轧板一致。 The texture of non-oriented electrical steel 50W800 was detected by EBSD technique.The evolution of the texture between important processes and the difference of texture along the width direction of strip were analyzed.The result shows that the difference along the width direction of strip of texture at the surface of hot rolled plate is most obvious.The texture at the surface of strip edge is primarily made of rotating cube texture,αfiber texture and weakγfiber texture.Goss texture is mainly co... 
2014-09-28 202 5.8

硅钢是钢铁产品中的\"工艺品\",是高附加值产品,通过对我国主要硅钢生产厂家的工艺设备,市场情况分析,简要介绍了我国硅钢生产消费现状,未来生产能力预测及硅钢未来发展趋势。 Silicon steel is the \"crafts\" of steel products,also is high value-added product.By analyzing process equipment and market condition of major silicon steel-making plant of China,it briefly introduces our current production consumption status,future production capacity prediction and future development trend of silicon steel. 
2011-03-28 202 5.8

本实用新型公开了一种具有导气槽的低空载损耗电工钢用罩式炉,包括:炉台,顶部设置有加热元件以及连通炉台外缘至中心凹陷的导气通道;炉板,压设于炉台上,设置有与中心凹陷上下对应的中心通孔;砂封槽,设置于炉台的外周,槽底低于导气通道;炉罩,罩设于炉台的顶部及外周形成炉腔,与砂封槽相压接;进气通道,穿设于炉台的中心凹陷中,具有开口向上的排气口;炉罩的炉台套接段内壁设置有导气槽,导气槽的延伸方向与炉罩的高度方向一致,导气槽将气流导向炉台外缘的导气通道进气口。该具有导气槽的低空载损耗电工钢用罩式炉的炉罩设置有导气槽,利用导气槽将硅钢卷外周下行的气流导入炉台的导气通道中,改善钢卷热处理过程中的流场和温度场。
2021-08-28 202 6.8

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... 
2014-03-28 202 5.8

研究了锰含量对w(Si)=1.8%Si无取向电工钢组织和性能的影响。结果表明,钢中锰含量从0.3%增加到1.2%时,由于α_γ相变的产生,铸坯低倍组织、热轧板金相组织及成品织构等均发生了不同程度的变化,对成品表面质量及磁性能产生了明显的影响。 The effects of manganese content on structure and properties of w(Si)=1.8% non-oriented electrical steels have been studied.Results show that with increasing manganese content to 1.2% from 0.3%,macrostructure of continuous casting slab,hot rolled band metallurgical structure and finished product texture vary in some extent because of the occurrence of α-γ phase transformation,the surface quality and magnetic properties of finished product are affected greatly. 
2011-03-28 202 5.8

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