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对碳-锰-硅钢进行不同配分温度的Q&P(Quenching and Partitioning)处理,测试了热处理后不同钢的力学性能和残余奥氏体含量,并用扫描电子显微镜和透射电镜观察其显微组织,分析了配分温度对显微组织和力学性能的影响。结果表明:试验钢显微组织基本由低碳板条状马氏体、块状铁素体和条状残余奥氏体组成;随配分温度的升高,试验钢的抗拉强度呈下降趋势,伸长率与奥氏体含量的变化趋势相同,但变化规律不确定;提高锰含量能稳定残余奥氏体,从而提高试验钢的伸长率,并使伸长率对配分温度不敏感。 The C-Mn-Si steel was quenched and partitioned at different partitioning temperatures,the mechanical properties and residual austenite contents were investigated,the microstructure was observed by SEM and TEM,and the effect of partitioning temperature on microstructure and mechanical properties was analyzed.The results show that the microstructure of the tested steel consisted of lath martensite with low carbon,nubby ferrite and banded residual austenite.The tensile strength of the tested steel ... 
2011-09-28 146 5.8

一种高硅钢的电渣重熔生产方法,电渣重熔过程渣系组成为,按重量计,CaF255%~59%、Al2O326%~30%、CaO7%~10%、SiO21%~9%,所述高Si钢,按重量计,钢中含有Si0.5%~2.0%,Al0.01%~0.05%。采用本专利设计的渣系成分配比,保护气氛电渣的情况下,可有效控制Si含量0.5‑2.0%的高Si钢电渣过程不增铝。
2021-06-23 168 6.8

文章以国内某公司硅钢厂连续退火机组1号辐射管加热段为研究对象,分析炉内传热机理,建立并开发了辐射管加热段的传热模型。采用生产实际数据对模型进行了验证,以总燃料消耗量最小为目标,得出该炉段长度方向上燃料的最佳分配机制。所得结论为该公司连续退火机组节能控制提供理论依据。 Taking the radiant tube heating section of No.1 continuous annealing unit in a silicon steel plant of a domestic company as the research object, the heat transfer mechanism in the furnace is analyzed, and the heat transfer model of the radiant tube heating section is established and developed. The model is verified by the actual production data. Aiming at the minimum total fuel consumption, the optimal fuel distribution mechanism in the length direction of the furnace section is obtained. The co... 
2022-01-28 142 5.8

【作者】 陶永根; ...
2011-04-28 160 5.8

研究了硅钢铸坯再加热过程中夹杂物的析出行为。采用非水溶液电解提取+扫描电镜观察方法,观察了试样的显微组织,统计了夹杂物的尺寸、种类、数量、分布。结果表明,均热温度为1 523 K时,水淬试样的夹杂物尺寸绝大部分小于0.5μm,0.5~5.0μm的夹杂物数量很少,没有发现5.0μm以上的夹杂物。此外,均热时间为10、30、60、90、120、240 min时,对应试样中0.05~0.2μm的夹杂物数量分别为4.04×104、4.73×104、3.70×104、3.33×104、3.10×104、1.56×104个/mm3。绝大部分夹杂物以MnS、AlN、CuxS类为主,并以三类夹杂物中的两类复合或三类复合居多。三类复合夹杂物总量占每组试样夹杂物总量的90%或以上。随均热时间延长,典型的夹杂物组成会发生如下变化:MnS+AlN+CuxS MnS+AlN AlN。与此同时,MnS、AlN、CuxS三者复合比例从45.2%(均热10 min)降为9.7%(均热240 min)。 The methods of electrolysis extraction from nonaqueous solution and scanning electron microscope were adopted to study the precipitation behavior of non-metallic inclusions in Si steel slabs during reheating processes.The morphologies,chemical compositions,quantity and size distribution of non-metallic inclusions in these steel samples were analyzed.Results show that,when the soaking temperature is 1 523 K,almost all of the non-metallic inclusions are smaller than 0.5 μm,few are in the range of ... 
2013-02-28 156 5.8

本发明涉及一种控制高牌号硅钢退火产生月牙印缺陷的方法,多次调整硅钢退火线入炉及出炉张力参数,使带钢处于预设悬垂量内;本发明避免高速运行下带钢撞在炉辊上,从而产生月牙印缺陷,提高了产品的质量。
2021-07-09 163 6.8

利用场发射扫描电镜观察了以MnS为主要抑制剂的普通取向电工钢加工过程中第二相粒子的分布状态,统计了粒子面密度、平均尺寸以及相应的尺寸分布.结果显示,热轧加工造成了大量第二相粒子弥散、细小地析出,同时基体仍保持过饱和状态.冷轧变形会造成第二相粒子的回溶行为,而基体的过饱和状态会减弱回溶现象.中间退火与脱碳退火过程中会同时存在新粒子的形核及已析出粒子的粗化两个过程,而在最终二次再结晶升温阶段则以第二相粒子明显粗化为主. The distribution of second phase particles in conventional grain-oriented electrical steels during manufacturing processes with MnS as inhibitors was observed by field emission scanning electron microscopy,while the areal particle density,the average particle size and the corresponding size distribution were statistically determined.It is indicated that hot rolling leads to dispersive precipitation of a large amount of fine second phase particles and the matrix keeps a supersaturated state furth... 
2011-04-28 171 5.8

聚焦无取向硅钢产品标准,从电磁性能、表面性能、机械性能以及尺寸公差与边部质量等维度对国际标准IEC、EN、JIS、ASTM以及国标GB进行了分析研究。分析得出,各类标准在电磁性能方面要求基本一致;ASTM标准的机械性能要求有别于其他几个标准。 In this paper,non-oriented silicon steel standards of EN,JIS,GB and ASTM were compared and analyzed. It is showed that,all types of standards in electromagnetic performance requirements are basically the same. Surface properties in ASTM standard are expressed in the most detailed. The mechanical properties requirements of the standards,except for ASTM,are basically the same. 
2014-02-28 165 5.8

本发明提供一种在同一卷材内得到稳定的磁特性的方向性电磁钢板的制造方法。上述方向性电磁钢板的制造方法,包括如下步骤:将具有规定的成分组成的钢坯热轧而制成热轧板,将上述热轧板退火而制成热轧板退火板,对上述热轧板退火板实施1次或隔着中间退火的2次以上的冷轧而制成最终板厚的冷轧板,对上述冷轧板实施一次再结晶退火和二次再结晶退火;上述冷轧包括至少1次的压下率为80%以上且轧制速度为设定值R0(mpm)期间的钢板温度T0(℃)与轧制速度为0.5×R0(mpm)以下期间的钢板温度T1(℃)满足式(1)的冷轧。
2021-06-28 156 6.8

冷轧无取向硅钢是高技术含量、高附加值产品,工艺复杂,生产周期长,过程控制难度大,被誉为钢铁产品中的\"工艺品\"。热轧生产工艺又是无取向硅钢生产的重中之重,直接决定了硅钢的铁损和电磁性等多项指标。 Cold rolled non-oriented silicon steel is high technology content、high addedvalue product. Its process is complex, Its production cycle is of Length, and Its Process control is difficult. Which is known as the iron and steel products \" Arts and crafts\". Hot rolling production process is the top priority of non-oriented silicon steel, Which Directly determines iron loss of the silicon steel and electromagnetic property, etc many index. 
2023-05-09 226 5.8

本发明提供退火隔离剂的制备方法以及退火隔离剂和方向性电磁钢板。由该方法得到的退火隔离剂纯度高、分散性以及密接强度优异,可以在方向性电磁钢板表面形成均匀致密的镁橄榄石层。退火隔离剂的制备方法,其包括:工序(1):将氧化镁和铵盐溶液混合并反应,制备镁盐溶液和氨,然后使精制的镁盐溶液与氨反应而得到氢氧化镁;工序(2):将得到的氢氧化镁的一部分在155~230℃下高温熟化,并且将得到的氢氧化镁的另一部分在10~100℃下低温熟化;工序(3):将在上述各条件下熟化的氢氧化镁混合、烧成,得到氧化镁用于退火隔离剂。
2021-06-18 149 6.8

本发明属于硅钢制造技术领域,具体涉及一种改善硅钢热轧板边部质量的加工方法,包括:连铸、铸坯预变形处理、铸坯加热处理和热轧处理;其中,所述铸坯预变形处理包括:在所述铸坯的温度为500~900℃下,对所述铸坯的沿长度方向的两侧壁通过立辊施加压力,直至形变量h为10~50mm;所述铸坯加热处理的加热温度为1100~1200℃,保温时间为4~6h。本发明提供的改善硅钢热轧板边部质量的加工方法,采用铸坯两侧壁的侧压工艺,有效解决了热轧板边部裂纹的缺陷,提高了边部塑性,提高了成材率并降低了生产成本。
2020-12-15 180 6.8

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