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通过对湿H2气氛下,相同退火温度、不同退火时间的CGO硅钢初次再结晶样品进行金相组织观察,并进行了EBSD微观织构分析,研究了CGO硅钢初次再结晶过程中的组织及再结晶织构演变行为。结果表明,在湿H2气氛下,820℃保温,CGO硅钢初次再结晶过程约在120 s时完成。随着退火时间的延长,γ面上{111}<112>织构含量逐渐减少,{111}<110>织构先减少后增多,随着再结晶的完成,部分{111}<112>取向晶粒向高斯{110}<001>取向转化的同时,也向{111}<110>取向转化,高斯{110}<001>织构含量逐渐增多。高斯取向晶粒较多是由{111}<112>取向晶粒转化而来,同时也证明了CGO硅钢高斯取向晶粒的二次再结晶异常长大生长机制为择优形核。 Microstructure development and texture evolution of conventional grain oriented silicon steel,which were annealed at same annealing temperature and different annealing time under wet H2 atmosphere,were investigated through metallographic observation and electron backscattered diffraction analyzing.The results show that the primary recrystallization finishes in 120 s at 820 ℃ under wet H2 atmosphere.With the extending of annealing time,{111}<112> texture decreases,{111}<110> texture d... 
2012-12-28 118 5.8

结合工业化生产的无取向硅钢,进行了RH精炼添加稀土合金实验。结果表明,1.15%(质量分数)Si钢的脱硫反应,主要发生在添加稀土合金之后的前5min。最佳的稀土合金添加量为0.6~0.9kg/t钢。钢液经过稀土处理后,加入的稀土总量越多,稀土氧硫化物夹杂物的尺寸就越大,但热轧带钢再结晶效果会逐渐变差,成品带钢晶粒尺寸先是快速长大,而后逐渐减小。最佳的钢中存留稀土含量与钢的化学成分有关,应严格控制在2.0×10-3%~6.0×10-3%(质量分数)。在此范围内,钢的铁损先是快速降低,而后缓慢升高,钢的磁感应强度则单调降低。 Based on the industrial production of non-oriented electrical steel,rare earth(RE) alloy treatment during the RH refining process was studied.The results showed that the effects of desulfurization and total concentration of RE remained in steel mainly depended on the chemical compositions of different steel grades.For 1.15wt% Si steel grade,the desulfurization reaction mainly focused on the initial 5min after RE alloy added during the RH refining process.The suitable RE alloy addition was 0.6-0.... 
2013-07-28 116 5.8

为了消除硅钢在连续退火机组产生的浪形缺陷,对浪形缺陷产生的主要原因进行了分析。制定了相应控制措施,对炉内带钢张力、冷却段输出、碳套辊与带钢的同步性、无氧化炉燃烧状态等参数进行了调整;在生产组织上安排高低牌号宽窄规格穿插生产、定期更换碳套辊等,实施后效果明显。 The main cause leading to waviness defects of silicon steel is analyzed in order to eliminate the waviness defects of silicon steel in continuous annealing line.And thus corresponding measures for controlling these defects are made by means of adjusting these parameters such as the tension of silicon steel coils in continuous annealing furnace,the output in cooling section and the combusting condition of the non-oxidation furnace as well as keeping the synchronization between carbon sleeved roll... 
2013-03-28 108 5.8

研究了冷轧大压下量,950℃退火时间对一种新型含铜无取向电工钢晶粒度和织构的影响。结果表明,大压下量冷轧,随压下量的增加,退火晶粒向γ线聚集,形成强{111}<112>织构。提高冷轧压下率,退火织构{111}<100>,{110}<001>强度减弱,增加退火时间,退火织构{111}<110>,{100}<001>,{110}<001>强度变弱。采用87.5%冷轧压下率和950℃退火60 s,有利织构{100},{110}占有率最大。 The effect of annealing(950 ℃) time with high cold rolling reduction on grain size and texture of a new non-oriented electrical steel containing copper was investigated.The results show that for high cold rolling reduction,most annealed grains are oriented along γ-fibre with increasing cold rolling reduction ratio and strong texture {111}<112> is formed.With increasing the cold rolling reduction ratio,the intensity of annealed texture {111}<110>,{011}<100> decreases.With increa... 
2011-01-28 129 5.8

【机构】 中国金属学会电工钢分会; ...
2011-06-28 81 5.8

为了优化激光刻痕降低取向硅钢铁损的工艺,寻找刻痕速度、脉冲能量、扫描间距等重要刻痕参数的最佳匹配关系,提出了一种基于人工神经网络与遗传算法的优化模型,并利用这种模型对30Q130取向硅钢材料的刻痕工艺进行了优化实验,结果表明,这种模型稳定可靠,可以作为取向硅钢刻痕工艺优化的一种有效的措施。 A laser is often considered to scribe the grain-oriented silicon steel surfaces after cold-rolling and annealing to reduce the core loss.It is necessary to select the best scribing parameters to maximize the reduction in this process.This paper proposes an optimization method of genetic algorithm during laser scribing of 30Q130 steel,by developing an artificial neural network prediction model using a database form a designed orthogonal experiment.The objective is to determine the best combinatio... 
2011-08-28 101 5.8

针对本钢薄板坯铸机在生产无取向电工硅钢的过程中存在的铸坯拉断、中包增碳、增氮等问题,进行了连铸工艺优化。通过采用新型无碳中间包覆盖剂、环保中间包干式料及专用结晶器保护渣后,降低了铸坯增碳量;通过控制钢包到中间包的增氮环节,降低钢水增氮;适当增大二冷水量,控制钢水过热度,防止铸坯拉断等生产事故的发生。改进工艺后,精炼后到成品铸坯的平均增碳量能控制在10×10-6以内,平均增氮量能控制在4×10-6以内。 The technology optimization has been adopted for preventing nitrogen increasing and carbon increasing in Benxi thin slab producing non-oriented silicon steel.Measures accordingly were adopted and satisfactory results were achieved. 
2011-05-28 106 5.8

本实用新型公开了一种高磁感低铁损取向硅钢切割用废屑清理装置,包括激光切割台,所述激光切割台上端滑动连接有一个滑动导轨,所述滑动导轨上滑动连接有一个切割主机,所述激光切割台上端均匀固定连接有一组锯齿板,相邻两个所述锯齿板之间均固定连接有一个导流板,所述导流板两端高度低于中间位置高度,所述激光切割台上端且与导流板两侧相对应位置均开设有一个收集槽,所述收集槽内均卡接有一个收集框,所述收集槽底部侧壁固定连接有循环水管,本实用新型的有益效果是:通过循环水泵使水在循环水管和排水管之间循环流动,从而可以使切割废屑顺着水流进入收集框内进行收集,避免切割废屑粘附在锯齿板之间难以清理的情况。
2021-12-22 150 6.8

本实用新型涉及热轧设备技术领域,公开了一种高磁感取向硅钢加工用具有定位结构的热轧装置,包括:机体,所述机体的下端固定有底座,所述机体的上端固定有顶板,所述机体的中部开设有安置腔,所述安置腔的两侧内壁开设有滑槽,所述顶板的上端嵌装有液压杆,且液压杆的伸缩端贯穿在安置腔的内部,所述液压杆的伸缩端固定有第一辊座,所述第一辊座的下方安置有第二辊座。该高磁感取向硅钢加工用具有定位结构的热轧装置设置有辊盘,辊盘用于通过螺栓固定内侧的轧辊,使得轧辊能够跟随辊盘的转动而转动,动力传输较为稳定,且轧辊可以从辊盘上进行拆卸,在轧辊损坏进行应急处理时操作更加便利,轧辊便于更换和维护。
2021-12-12 107 6.8

本发明公开了一种变压器用硅钢片冲切设备,包括输送机、双向冲压机构、缓冲抬升机构和磁吸式清洁器四部分,输送机的末端安装有支撑架,双向冲压机构安装于支撑架上且由驱动机构、导向板、冲压头、连接器和冲切刀片组成,驱动机构的底部垂直安装于导向板的中部,导向板的两端与支撑架相连接,冲压头分设有两组且对称滑动设置于导向板上,驱动机构的两端与两组冲压头相连接,连接器安装于冲压头的末端,两组连接器的下端与冲切刀片的上沿转动连接。本发明所设计的冲切设备采用全自动运作的方式,并且配合有缓冲式的冲压机构,可以减小冲切过程中的形变率,整个机体的运作通过PLC控制器进行控制运作,提高装置的智能化程度。
2021-11-29 128 6.8

一种厚度≤0.15mm无取向硅钢带,其组分及wt%为:Si:2.0~6.5%,Mn:0.13~0.40%,S≤0.020%,P≤0.020%,Als:0.15~0.9%,C≤0.010%;工艺:经冶炼、浇注成坯后热轧至中间坯厚度;冷轧;常温脱脂;光亮罩式退火;经碱洗后涂覆;分条。本发明在保证铁损P1.0/400£13W/kg,磁感B2000³1.5T下,还使钢带厚度公差不超过±0.005mm,最小叠装系数³0.92完全满足连续冲制要求。
2021-11-15 121 6.8

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