硅钢资料

通过对取向硅钢进行脉冲磁场退火实验,发现在相同的退火时间(6.0 min)内,低于1 T的脉冲磁场可以在一定程度上提高取向硅钢的磁感(B8),而高于1 T的脉冲磁场则会使取向硅钢的磁性能急剧恶化.同时发现,脉冲直流电加热方式会使取向硅钢的磁性能恶化.研究表明,脉冲磁场退火有望成为一种调控材料微观结构的有效手段. We have carried out experiments of annealing by pulse magnetic field.The results show that a pulse magnetic field with intensity lower than 1 T can promote magnetic induction density(B8) of grain-oriented silicon steel,while the magnetic properties deteriorate sharply when intensity is higher than 1 T.It has also been found that heating by using pulse direct current can cause the magnetic properties to deteriorate,in contrast to the traditional heating using resistance furnace.Our research shows... 

稀土元素在许多钢中发挥着独特而且不可替代的重要作用。半个世纪以来,它的作用已经在各种低合金和特殊合金钢中的研究及应用中得到充分的证明;然而,作为具有稀土资源优势的中国,在属于重要功能材料的无取向电工钢中稀土的应用却落后于国外,本文就中国稀土在无取向电工钢中的应用研究作简要的评述,希望能够进一步推进此领域的研究,并且促进中国稀土在无取向电工钢中应用技术的发展,缩短与国外差距,并提出了在此应用领域今后需深入开展的研究方向。 Rare earth elements play a unique and irreplaceable role in a lot of steels,it has given the full proof by the practice of various low alloy steels and special alloy steels since half century.However,as our country has the advantage of rare earth resources,RE application technology in non-oriented electrical steels has lagged behind abroad.The application researches of rare earth in non-oriented electrical steel in our country are briefly reviewed in this paper,which hope to promote the research... 

利用EBSD技术对CGO硅钢热轧、中间退火、脱碳退火及二次再结晶退火组织及织构进行分析,研究了CGO硅钢各阶段加工制备过程中高斯{110}<001>晶粒的形状、尺寸及分布特点,分析了高斯取向晶粒在各工序过程中的遗传继承性特点。结果表明,CGO硅钢热轧板的次表层存在Goss取向晶粒,历经一次冷轧及中间退火后Goss取向晶粒基本消失,一次再结晶之后Goss织构仍不是主要织构,主要织构为{111}<110>和{111}<112>,说明Goss取向晶粒在二次再结晶退火前数量及尺寸上并不占优势,二次再结晶过程中Goss取向晶粒异常长大形成锋锐Goss织构。{111}<110>和{111}<112>织构组分的强度在一次冷轧中不断增加,{111}<112>织构组分的强度在二次冷轧后达到最大而{111}<110>织构组分是在初次再结晶后变强。 Grain shape,size and distribution of { 110} < 001 > Goss grains in CGO steel and the hereditary characteristics of Goss orientated grains during each processing period were investigated,based on the analysis of the microstructure and texture of the CGO silicon steel during hot rolling,intermediate annealing,decarburizing annealing and secondary recrystallization annealing by means of EBSD. The results show that Goss orientated grains exist in the subsurface of the hot rolled plate,and Goss... 

本发明涉及金属冶炼工艺，尤其是一种降低无取向硅钢W800冶炼成本的方法，开吹阶段，着火后，加入头批渣料，石灰加入量占石灰总加入量的70%，石灰石加入量占石灰石总加入总量的100%，轻烧白云石加入量占轻烧白云石总加入总量的100%，待化渣后，枪位降低；化渣后将剩余30%石灰加入，加入剩余石灰过程中利用矿石调整温度；吹炼后期，并逐步压枪，终点拉碳枪位至1.4m，并使枪位在此高度不少于30s；到达冶炼终点。本工艺通过降低转炉渣量、提碳降氧和提高终点温度来减少铁水锰氧化量和促进氧化锰还原量，进而降低RH金属锰加入量，降低生产成本。

以青海盐湖氯化镁为初级原料,采用喷雾热解法制备原料氧化镁。原料氧化镁通过水化制备氢氧化镁。将氢氧化镁过滤、洗涤、烘干、粉碎、煅烧,制备硅钢级氧化镁。本文重点考察煅烧温度、煅烧时间、料层厚度等因素对氧化镁水化率的影响,采用均匀实验设计和DPS数据处理,确定最优煅烧实验条件为:煅烧温度1250℃,煅烧保温时间4小时,料层厚度0.5cm。在此条件下得到的硅钢级氧化镁完全满足硅钢及氧化镁的行业标准。 The magnesium oxide is prepared by Spray pyrolysis process,which magnesium chloride from Qinghai Salt Lake is used as primary raw material,and hydrated to magnesium hydroxide,then obtained silicon steel magnesia through filtering,washing,drying,crushing and calcinations.In this paper,influences of some factors on magnesia hydration rate are studied,such as calcination temperature,calcination time and material thickness.After average experimental design and DPS data processing,optimal calcination... 

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。

适用范围 本标准规定了特高压变压器用冷轧取向电工钢带的术语和定义、分...

本实用新型公开了一种硅钢加热保温装置，包括安装板，所述安装板上表面固定连接有加热箱，所述加热箱背面通过固定板连接有多个伺服电机，所述伺服电机输出端固定连接有第一螺杆，所述第一螺杆远离伺服电机的一端贯穿加热箱并螺纹连接有置物板，所述加热箱内侧壁转动连接有多个第二螺杆，所述第一螺杆与相邻的第二螺杆之间通过锥轮组件相连接，所述第二螺杆外侧壁螺纹连接有螺纹块，所述螺纹块上表面通过连接组件连接有夹板。本实用新型，这种保温方式，操作简单，使硅钢在这个过程中，硅钢裸露在空气的时间短，能够起到较好的保温效果，避免因保温不当造成硅钢成品质量降低，从而有效的提高硅钢成品合格率。

本实用新型公开了一种包容产品转子硅钢片叠加公差的模具机构，包括上下设置的定模固定板和动模固定板，定模固定板下面设置有定模仁，定模仁内穿设有定模型芯，定模型芯的上端设置有定模型芯限位块，定模型芯限位块套设在导向销下端，导向销上套设有定模型芯浮动弹簧B，定模型芯底部设置有台阶面，定模型芯上套设有定模型芯浮动弹簧A，定模仁外圈设置有定模浮动型芯，定模浮动型芯与动模固定板之间设置有动模浮动板，动模固定板中心设置有动模仁，动模仁上套设有产品转子，产品转子上端与定模型芯下端接触。本实用新型提供的一种包容产品转子硅钢片叠加公差的模具机构，能够省去高度调整工序，降低成本和品质管控风险。

传统轧制法制备6.5wt.%高硅钢过程中温轧工艺具有显著不同于3 wt.%Si的电工钢的特点及组织织构特征,是开发新型基于织构优化的高硅钢的关键环节。采用EBSD技术对通过热轧、温轧、冷轧及退火工艺制备0.3mm厚的6.5wt.%Si电工钢板的组织和织构进行分析,重点研究温轧过程中的中间退火和大、小压下率组合以控制织构。结果表明,在热轧退火板是部分再结晶组织的情况下,一次性温轧或先小形变量、中间退火后再大形变量的工艺可得到更多的Goss晶粒;经过最终退火后Goss取向会发生偏转,形成部分黄铜取向,而{111}〈112〉取向的晶粒内形核生成近Goss取向的再结晶晶粒;大压下量轧制是最终组织中{111}取向晶粒较多的主要原因。 Warm rolling,a key process of developing new type high-Si electrical steel based on texture optimization,has significant different characteristics from 3wt% Si steel in conventional preparing process. 0. 3mm thickness 6. 5wt. % Si steel,obtained by a series of processes including hot and warm rolling,intermediate annealing and then cold rolling,was analyzed from microstructure and texture by EBSD,which are utilized mainly for investigating the intermediate annealing process and the combination o... 

涂层技术在高磁感取向硅钢生产中起着重要的作用.根据生产实践,介绍了高磁感取向硅钢生产中涂层的种类和作用、涂料的成分和对产品性能的影响、涂层工艺质量控制要点和检验方法等,并提出了通过优化涂层工艺改善高磁感取向硅钢性能和外观质量的方法. Surface coating technique plays an important role in producing high magnetic inductivity grain-oriented silicon steel.Based on production practice,this paper describes the types and function of the coating,the composition of the coating and its effect on the product performance,the quality control and inspection method for the coatings,as well as proposes ways to improve the magnetic property and surface quality of the steel by optimizing the coating process. 

试验研究了球刻痕法对高磁感取向硅钢的铁损、矫顽力、相对磁导率、巴克豪森噪声等磁学性能的影响.研究结果表明:经过球刻痕处理后,高磁感取向硅钢的铁损明显降低,矫顽力下降,8 mm球刻痕过后铁损值与矫顽力分别下降16.2%和14.7%,且铁损和矫顽力均随刻痕间距降低而减少.刻痕后的高磁感取向硅钢磁导率在高磁感应强度下明显上升,刻痕后巴克豪森噪声值明显降低,经过对比分析确定8 mm为球刻痕的最佳刻痕间距.从磁畴观察、细化磁畴的原理等方面解释了细化磁畴对高磁感取向硅钢性能的影响原因. The effects of the ball scribing on magnetic properties of high permeability grain-oriented silicon steels,including the iron loss,coercive force,relative permeability,and Barkhausen noise were investigated. The results showed that the iron loss and coercive force of the high permeability grain-oriented silicon steels apparently decreased 16. 2% and 14. 7% respectively after 8 mm ball scribing and they both decreased with the decrease of the scribing spacing at the same magnetic flux density. At...