硅钢资料

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... 

研究二次冷轧压下率对于硅的质量分数为3.0%的无取向硅钢组织结构和磁性能的影响。结果表明:当第二次冷轧压下率从0变化至16.7%时,铁损逐渐增加,磁感逐渐降低。当第二次冷轧压下率大于16.7%时,随压下率的增加,铁损逐渐减小,磁感逐渐增加。当第二次冷轧压下率大于38%时,二次冷轧法所能获得的磁性能明显优于一次冷轧法。 Effect of double cold reduction on magnetic,microstructure and texture of 3.0% Si non-oriented silicon steel sheets was investigated.The results show that the iron loss increases and magnetic induction reduces as the percentage redcution in secondary cold rolling changes from 0 to 16.7%.The core loss can be reduced remarkably,and magnetic induction can get a little benefit if the percentage redcution in double cold reduction is higher 16.7%.In case of higher than 38% of the percentage redcution ... 

本实用新型公开了一种便于墙面阳角安装的饰面硅钢石膏板，包括第一基材和第二基材，第一基材和第二基材均与墙面贴合，第一基材和第二基材相邻端设有阳角线条，阳角线条与墙面之间设有固定柱，固定柱一端固定连接在墙面内，固定柱通过通孔贯穿第一基材，阳角线条外侧固定连接有固定块，固定块靠近阳角线条的一侧设有插槽，固定柱远离墙面的一端贯穿阳角线条插设在插槽内，固定柱一侧设有限位槽，固定块一侧设有限位机构，限位机构一侧与限位槽相对应，本实用新型对板材的安装和拆卸更加方便，在石膏板材中添加硅钢素后，更加增强石膏板的钢性、表面的硬度及表面的流动性平整度。

针对陶瓷辊表面结瘤清除时间长、清除效果差等缺陷,研究正反转陶瓷辊除瘤法,以缩短除瘤时间,增强除瘤效果。 The general removal of ceramic roller surface tumor costs a long time and the effect is poor.This paper probed into the ceramic roller tumor removal in order to shorten time and enhance the effect of eliminating. 

本文对某厂硅钢DR510温度、成分及过程控制水平和成品的组织、力学性能进行了研究,并在此基础上提出了工艺优化方案,有一定的借鉴和推广价值。 In this paper,the critical process and the products quality,including temperature,composition and process controlling level,the organization and mechanical properties of the finished product,were studied.On the basis of that the optimized technical plan provided,and this control technology is worth using and spreading. 

本申请涉及硅钢制造技术领域，尤其涉及一种去除耐热刻痕取向硅钢中熔覆物的化学试剂及其方法。所述化学试剂的组分以质量分数计包括：强酸溶液：8％～20％；酸性氧化剂：5％～15％或助剂：5％～20％；其余为溶剂；其中，所述强酸溶液包括硫酸、盐酸和硝酸中任意一种。本申请实施例提供的该方法，通过10％～20％强酸溶液，可快速有效地去除取向硅钢刻痕处的熔融物，而酸性氧化剂：5％～15％，或助剂：5％～20％结合合适浓度的强酸溶液，可以将取向硅钢的基体破坏降到最小，两种综合作用，得到表面平整的耐热刻痕取向硅钢。

利用EBSD技术研究了电工钢中长轴平行于轧向的柱状晶样品在热轧和退火过程中组织和取向的演变规律,并与长轴平行于板法向的样品的已有研究结果进行对比。结果表明,无论柱状晶按何种方向排列,只要表面存在剪切力,热轧后都可形成剪切织构,同时中心形成轧制织构,主要包括旋转立方织构和{112}<1-10>。柱状晶造成的影响主要体现在板中心层,长轴平行于轧向排列的样品热轧时形成的粗大旋转立方晶粒要到脱碳退火后才能完全消除,但破坏了正常的不同取向晶粒间的取向差分布及尺寸均匀性,导致二次再结晶不完全及磁性能降低。 The evolution of microstructure and grain orientation in an electrical steel containing columnar grains with its long axis being parallel to the rolling direction of sheet was studied during hot rolling and annealing by EBSD technique.The results are compared with those of samples containing columnar grains being parallel to normal direction of sheet reported in the reference [3].It was shown that,whether the long axis of columnar grains was arranged in RD or ND,shear textures can be formed in t... 

通过观察冲剪边缘组织,测量冲剪边缘的显微硬度、残余应力的分布情况和磁性能的变化研究了冲剪加工对无取向硅钢50WW800边缘组织和磁性能的影响。对冲剪后硅钢片进行750℃退火,分析退火对组织和磁性能的影响。结果表明,硅钢片剪切边缘会存在0.4 mm的形变硬化层,边缘应力大,铁损增加。退火后变形减小,形变硬化层变小,残余应力大幅度减少,铁损减少。 The influence of punching process on cutting edge microstructure and magnetic properties of non-oriented silicon steel 50WW800was studied by observing microstructure and measuring microhardness near cutting edge.The residual stress distribution in the silicon steel tooth and magnetic properties were measured.Effect of annealing at 750 ℃ on microstructure and magnetic properties of the silicon steel was analyzed.The results show that a cut-edge hardening layer up to 0.4 mm is observed,residual st... 

采用固溶强化、细晶强化和位错强化方法,模拟TSCR流程试开发高强度无取向电工钢,试开发钢的主要合金成分为3%Si、0.83%Al和2.99%Mn。分析热轧、常化、退火后的钢板组织,并针对不同的成品板组织,详尽地分析了相应的力学性能和磁性能。试验电工钢平均晶粒直径为12.37μm时,R p0.2为530 MPa,R m为618 MPa;当退火制度为700℃×4 min,成品组织完全为未再结晶的回复组织时,R p0.2为853.5 MPa,R m为895.5 MPa。该成分的电工钢P15/50或P10/400最小时,对应的平均晶粒直径都大于59.67μm;P10/800或P10/1000最小时,对应的平均晶粒直径都处于12.37~59.67μm尺寸区间。 TSCR was simulated to develop high-strength non-oriented electrical steel with 3% of Si,0.83% of Al and 2.99% of Mn by solution strengthening,grain refinement strengthening and dislocation strengthening.The microstructures of hot rolled plates,normalized plates and annealed plates were analyzed.Furthermore,the mechanical properties and magnetic properties of products with different microstructures were detailedly studied.As the average grain diameter of the steel was 12.37 μm,the yield strength ... 

通过金相分析和电子背散射衍射技术研究了一种新型含铜无取向电工钢在950℃退火不同时间(3～180s)空冷后的组织和织构取向的演变。结果表明:该钢在退火3s时的主要织构为α和γ线织构,{100}<110>织构最强;退火20s时织构以<111><112>、{111}<110>、{112}<110>、高斯织构和立方织构为主,随着退火时间的延长,高斯织构和立方织构强度呈减弱趋势;合理控制保温时间有利于提高{100}、{110}面织构的占有率。 Evolution of microstructure and texture oriented of a new non-oriented electrical steel during annealing at 950℃for different times(3-180) s and air cooling was studied by metallography and electron back-scattering diffraction analysis.The results show that after annealing for 3 s most of the texture oriented alongα-fibre andγ-fibre,the intensity of {100}〈110〉was the strongest.{111}〈112〉,{111}〈110〉,{112}〈110〉,Gauss texture and cube texture were the main texture after annealing for 20 s,with the ... 

本发明公开了一种物理喷砂方式制备取向硅钢薄带无底层原料的方法，步骤包括：S1、坯料预处理；S2、涂覆隔离剂，后进行高温退火；S3、拉伸热平整；S4、表面喷砂处理，去除底层；S5、去应力退火；本发明优点在于，采用喷砂的物理办法制备取向硅钢薄带无底层原料，代替了传统的用酸去除取向硅钢涂层或硅酸镁底层，结合退火去应力，显著改善了加工质量，使整个加工过程更加环保，也有利于控制成本。

本发明提供一种硅锰镇静无取向硅钢冶炼方法。该无取向硅钢化学成分质量百分比为C≤0.005％，Si：0.25％‑1.20％，Mn：0.2％‑0.8％，P：0.015％‑0.065％，S≤0.005％，Als≤0.005％，余量为Fe及不可避免的杂质。其生产方法包括转炉出钢结束加石灰、渣面脱氧剂调渣；RH真空精炼脱碳结束后进行脱氧合金化，合金化后3‑5min由真空室料仓加入合成渣，处理一段时间后净循环8‑12min，破空出钢运至连铸浇注。得到钢水中主要为SiO2‑CaO‑Al2O3系夹杂，一方面避免了钢水中生成低熔点SiO2‑MnO系夹杂，轧制过程沿轧制向伸长，阻碍晶粒长大；另一方面也避免了生成纯SiO2或高SiO2组分类酸性夹杂，导致冶炼过程耐火材料的严重侵蚀。本发明可控制钢中非金属夹杂物类型，提高钢水洁净度，改善冶炼过程中对耐火材料的侵蚀。