硅钢资料

磁性能指标是硅钢产品最关键的质量指标之一，但是目前磁性能判定100%依赖于样品的离线实验室检测结果，生产线配置的在线检测仪的测量结果由于精度问题，不宜直接用于成品牌号判级。本文在现有硅钢产品质量管控体系基础上，利用大数据技术对生产数据进行分析与建模，构建不同磁性能指标在线检测模型，并在现有信息系统上完成模型库的集成部署，实现硅钢产品全长、多指标磁性能结果的拟合数据输出，支撑取样优化、精准分切、辅助综合判定等功能应用，进一步优化硅钢产品质量管控体系。 The magnetic performance index of silicon steel products is one of the most critical quality indexes.However,at present,100%determination of magnetic performance depends on the offline laboratory test results of samples,and the measurement results of the online detector configured in the production line cannot be applied in practice due to the accuracy problem.Based on the existing quality control system of silicon steel products,big data technology was used to analyze and model the production d... 

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 ... 

【机构】 宝山钢铁股份有限公司规划与科技部； ...

本发明公开了一种基于硅钢服役特性的立体卷铁心单框损耗测量方法及系统，根据硅钢片在立体卷铁心中的服役特性，获得测量铁心单框所需的非正弦励磁电压波形，通过所述立体卷铁心的心柱绕组电压和单框绕组电压之间的关系，确定所述被测立体卷铁心单框所需的电压有效值，再通过计算机、数据采集卡D/A转换器、功率放大器、隔离变压器和示波器，直接在所述立体卷铁心单框上加载励磁电压，利用功率表测量立体卷铁心单框损耗。本发明利用硅钢的服役特性，获得测量立体卷铁心单框所需的非正弦励磁电压波形和电压有效值，再将励磁电压直接加载到被测立体卷铁心单框，测量立体卷单框铁心损耗。

本发明公开了一种电化学评价取向硅钢氧化层的装置及方法，包括电解池、设于电解池一侧的磁铁组、设于电解池上的饱和甘汞电极和铂电极以及与电解池连接的电化学工作站；磁铁组包括固定在电解池上的固定磁铁和与固定磁铁磁性连接的移动磁铁，移动磁铁设于电解池侧面的出口上；参比电极设于磁铁组与辅助电极之间；参比电极和辅助电极与电化学工作站连接。本发明的评价方法通过电化学测量取向硅钢试样的电位‑时间曲线，计算出取向硅钢氧化层各分层的溶解电量，实现了对取向硅钢氧化层各分层的快速、准确测定，可以区分出Mg2SiO4玻璃膜底层、SiN层、SiO2层、FeO及铁橄榄石层等分层性能，为取向硅钢生产工艺参数的控制提供指导。

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。

结合工业化生产的无取向硅钢,进行了RH精炼喂CaSi线去除钢中的非金属夹杂物试验研究。针对不同的钙处理条件,分析了CaS夹杂生成热力学,观察了夹杂物的形貌和尺寸分布,确定了夹杂物的类型、数量,探讨了钙处理后钢中夹杂物的变化规律。结果表明,本试验条件下,钙处理可以有效抑制MnS、AlN夹杂物的生成,有效促进钢中微细夹杂物的聚合、上浮、去除,钢质纯净度明显提高。经过合适的钙处理后,钢中的夹杂物以独立存在的CaO为主,同时有少量含CaO、SiO2、MgO的复合夹杂,没有发现CaS夹杂存在。这部分夹杂物的尺寸集中分布在2～20μm,数量约为1.8×105个/mm3。 Experimental study on removal of non-metallic inclusions in non-oriented silicon steel obtained from industrial production by CaSi wire feeding during RH refining process was carried out.The thermodynamics of CaS inclusion formation was analyzed,the morphology and the size distribution of inclusions were observed,and the numbers and types of inclusions were also determined for the steel specimens treated under different calcium treatment conditions.Furthermore,the variation of inclusion characte... 

提出以“云边一体化架构”构建硅钢智慧决策系统，来解决原硅钢制造L1～L5系统架构模式下的数字信息孤岛、业务功能割裂等问题。在此基础上，开发了云边协同的自学习型控制模型及业务决策模型，构建起硅钢“智慧大脑”，形成了以研发、制造、服务等核心业务数字化融合的智能化决策支持新模式，探索出一条钢铁制造业数字化、智能化转型之路。 SIDS(Silicon-steel Intelligent Decision-making System)based on \"cloud-edge integration architecture\" was proposed to solve the problems of data silos and business function fragmentation in the original L1～L5 system architecture.On this basis,the self-learning control model and decision-making model of cloud-edge collaboration were developed,the \"smart brain\" of silicon steel department was constructed,and a new intelligent decision-making support model of digital integration of core businesses s... 

本发明公开了一种硅钢含铬涂层废液处理过程中六价铬浓度在线监控方法，提出一种准确检测废液中六价铬含量的方法和检测时间的确定，实现了含铬废水原液中六价铬含量预测和焦亚硫酸溶液添加量的确定及六价铬在线检测预处理系统的启动时间的确定，确保处理装置安全高效运行。在酸化还原罐上安装氧化还原电位检测仪，实时检测含铬废液在整个处理过程中ORP的变化，推测含铬涂层废液中六价铬还原情况，初步判断还原过程的终点，为在线六价铬自动检测仪的启动提供依据，最终实现解毒后废液六价铬的含量低于0.05mg/L，达到六价铬含量超低处理的要求。

利用DSC、XRD,结合热焓分析对硅钢级氧化镁和二氧化硅的固相反应行为进行了研究。比较了不同二氧化硅原料及混合方法对硅钢级氧化镁反应性的影响,找到了一种更为有效的硅钢级氧化镁反应性的评估方法,克服了传统柠檬酸活性法在比较不同厂家生产的氧化镁的反应性上的局限性。进一步研究了Na₂B₄O₇添加剂、TiO₂添加剂对氧化镁和二氧化硅反应行为的影响,结果表明,Na₂B₄O₇添加剂含量的增加对反应有利,而TiO₂添加剂对反应有阻碍作用。 The solid-state reaction behavior between silicon-steel grade MgO and SiO₂ was investigated by DSC and XRD combined with enthalpimetric analysis.The influence of different kinds of SiO₂ and different preparation methods were studied and a specifical measurement that is more reliable was proposed to evaluate reactivity of silicon steel grade MgO.It overcomes the limitation of the traditional citric acid activity（CAA） method,which can not be used to evaluate the reactivity of... 

对两种硅钢水溶性极厚绝缘涂层进行了不同温度的热老化实验。通过TG-DTA,GDS,FT-IR,SEM和光泽度仪等测试方法对老化的涂层进行分析表征,提出了评估硅钢水溶性极厚绝缘涂层热老化性能的合理温度区间,探讨了涂层热老化行为,并分析了两种涂层热老化性能的差异。结果表明,涂层附着性随着老化时间的延长逐渐下降。FT-IR表征结果显示,热老化过程中,涂料交联形成的化学键未发生断裂,交联剂氨基树脂的三嗪环被破坏是聚合物三维网络结构坍塌的主要原因。 Thermal aging expriments at different temperature were carried out on two types of water-soluble and extra-thick insulation coatings for non-oriented silicon steel,and a series of test methods such as glossmeters,TG-DTA,FT-IR,GDS,SEM were applied in analysis.For evaluating the thermal aging effect of this kind of insulation coating,the proper temperature range was proposed.The difference of aging performance between two coatings was been investigated and the related behaviors were been discussed... 

结合工业化生产的无取向硅钢,探讨了氧硫交互作用对钢中夹杂物生成的影响。借助非水溶液电解+扫描电镜法,研究了不同O、S含量下钢中夹杂物的变化规律。结果表明,本实验条件下,提高O含量、降低S含量,会劣化热轧组织再结晶效果。在劣化效果上,O的作用大于S;低Si、无Al硅钢中,应尽可能降低O含量、适当提高S含量,以粗化钢中微细夹杂物,减少尺寸小于1.0μm的夹杂物的数量;O、S含量与钢中夹杂物数量不具有关联性。生产过程中,不仅要严格控制O、S含量,还要严格控制生产工艺,以免生成较多的有害夹杂物。 Based on the industrial production of non-oriented silicon steel,the effects of interaction between oxygen and sulfur on the formation of inclusions were discussed.The change of non-metallic inclusions in steel sheets was investigated by means of electrolysis with non-aqueous solution under different oxygen and sulfur content.Results show that the recrystallization microstructure of hot rolled sheets will be deteriorated with the increase of oxygen content and the decrease of sulfur content.The ...