所有分类
  • 所有分类
  • 未分类

研究了热轧卷取时间对无取向电工钢晶粒组织、织构演变、铁损和磁感的影响。结果表明,成品晶粒尺寸在120~140μm之间,随卷取时间的增加,成品晶粒尺寸增大。成品织构主要由γ纤维、а纤维和高斯织构等构成。随着保温时间的增加,{111}<110>和{112}<110>织构强度降低。随卷取时间的增加,成品P1.5降低。热轧板最佳的卷取工艺为550℃保温2~3 h,电工钢的综合磁性能优良。 The effects of hot-rolling coiling time on microstructure,texture,core loss and magnetic induction of a new cold-rolled non-oriented electrical steel containing copper were investigated.The test results showed that for final product the grain sizes are 120-140um,with the increase of coiling time,the grain size increase.For final product there are mainly γ-fibre,а-fibre,and {110}<001> texture,Coiling at 550℃ for hot rolled plate,the {111}<110>,{112}<110> texture was weaked with ... 
2023-05-09 222 5.8

目前高磁感冷轧硅钢生产过程中,采用经验方法确定的乳化液流量设定值往往会造成硅钢产品的磁感性能达不到预期目标,针对此情况,基于轧机轧制机理研究了的乳化液流量数学模型,确定了乳化液流量设定值。实践表明,使用该数学模型输出的乳化液流量设定值,可提高轧制过程中乳化液流量控制精度,从而提高高磁感冷轧硅钢的轧制性能。 In view of the current production process of high magnetically inductive cold-rolled silicon steel, the mathematical model of emulsified fluid flow based on mill rolling mechanism is studied in view of the situation in which the magnetic sensing performance of silicon steel products is often not up to the expected target by using empirical method to determine the emulsified liquid flow setting. Practice shows that the emulsified fluid flow setting value output from this mathematical model improv... 
2022-01-28 170 5.8

本实用新型公开了一种硅钢片冲压模具,包括上模和下模,上模和下模之间通过导向杆连接,下模上设有出料槽,出料槽的底部设有一磨盘,磨盘通过齿轮连接电机。本实用新型结构设计合理巧妙,当硅钢片冲压下落时,磨盘通过电机带动转动,对硅钢片的周围进行打磨,使硅钢片边缘平整,叠铆时上下不易错位。
2020-12-28 153 6.8

采用双辊薄带连铸技术试制了3.98%Si-0.71%Al无取向硅钢铸带,研究了二次冷轧法对硅钢组织和磁性能的影响。结果表明:硅钢铸带显微组织为等轴晶组织,铸带再结晶较完全,常化对铸带显微组织影响较小。二次冷轧工艺和一次冷轧工艺下,最终退火后成品显微组织为等轴晶组织,二次冷轧法最终退火后的晶粒尺寸小于一次冷轧法。二次冷轧法能够提高成品磁性能. Effect of double cold rolling on magnetic properties and microstructure of 3.98%Si-0.71%Al non-oriented silicon Steel Sheets cast by twin-roll thin strip casting process were investigated.The results show that the structure of the thin strip is equiaxed crystal,the recrystallization is complete and normalizing has lesser effect on microstructure.Using both cold rolled and double cold rolled process,the microstructure is equiaxed grain after final annealing.The average grain size of annealed shee... 
2013-10-28 154 5.8

本实用新型公开了一种铁芯硅钢片卷材的自动放卷上料装置,包括放卷机、导向平台和防折组件,所述导向平台间距设置在放卷机的下方,所述导向平台与放卷机之间构成供料带缓冲的缓冲空间,所述料带在缓冲空间内呈U型状走向,所述导向平台的上方间距设置有防折组件,所述防折组件与导向平台之间构成供所述料带通过的导向通道,所述防折组件设置在料带的内弯侧。通过防折组件对料带的内弯侧进行支撑,能够有效的防止料带被过度弯折,能够对料带进行缓冲和缓冲保护,保证料带放卷上料的稳定性。
2021-12-21 212 6.8

本实用新型提供了一种用于冷轧无取向硅钢卷的具有防护功能的转运装置,其特征在于,包括:壳体,所述壳体的底部两侧拐角处均设有支撑块,所述支撑块的上方均设有减震器,采用吊装搬运冷轧无取向硅钢卷,可能会在移动的过程中因为滑动掉落,会发生不可预料的风险,地面搬运会降低风险,危险程度相对降低。转运装置的壳体内部的下方设有减震器,能够有效的减少冷轧无取向硅钢卷的晃动,从而减少对冷轧无取向硅钢卷的损坏,也降低因为搬运过程中的晃动带来的危险,通过气缸的伸缩可以固定不同直径的冷轧无取向硅钢卷,防滑板和防滑垫为橡胶材料,既可以防止冷轧无取向硅钢卷的滑动,也可以有效减小冷轧无取向硅钢卷的晃动。
2021-09-09 146 6.8

以不断增长的薄板坯流程为背景,与传统流程对比分析了薄板坯流程无取向电工钢热轧晶粒组织特征;以50W800和50W1300钢为典型实例,探讨了两种流程下成品板晶粒组织、织构、磁性能及其磁时效行为的基体差异和相关原理。研究表明,薄板坯流程热轧板组织较粗大,有利于在成品板中获得粗大的晶粒和有利的织构,从而得到较低的铁损和较高的磁感。然而,薄板坯流程会造成第二相粒子的细小弥散分布与不充分析出,容易因磁时效而使磁性能恶化。 Based on the rapid development of compact strip production(CSP) processing,the characteristics of hot band grain structure produced by CSP processing were analyzed in comparison with those of conventional technology.The basic differences in grain size,texture,magnetic properties and the magnetic aging behaviors of the final sheet products produced by the two processing technologies and the corresponding principles were discussed,while steel 50W800 and 50W1300 were taken as examples.It is indicat... 
2013-04-28 155 5.8

本实用新型公开了一种硅钢片叠片结构,涉及到硅钢片叠片技术领域,包括安装架,安装架的一侧面的两端均通过轴承活动插接有转动轴,转动轴的一端固定连接有转运轮,一个转动轴的中部外侧固定套接有从动齿轮,从动齿轮的一端啮合连接有主动齿轮,主动齿轮的转轴的一端通过轴承与安装架活动插接,主动齿轮的转轴的中部外侧和另一个转动轴的中部外侧均固定套接有皮带轮。本实用新型通过在一个转动轴的中部外侧固定套接有从动齿轮,从动齿轮的一端啮合连接有主动齿轮,主动齿轮的转轴中部和另一个转动轴的中部均固定套接有皮带轮,两个皮带轮之间通过传动皮带传动连接,因此电动机工作时能够带动两个转运轮同步逆向转动。
2021-01-15 143 6.8

一种硅钢厂调功器故障报警自动复位的方法,包括:通过人机界面对炼钢炉温度进行设定,并在炼钢过程中实时获取炼钢炉温度;将炼钢炉实时温度与设定温度进行对比,当炼钢炉实时温度低于设定温度时,启动调节器;调节器输出功率使电阻带加热,使炼钢炉实时温度达到设定温度;当调节器发生故障时,调节器将故障信号发送给后台服务器,后台服务器根据故障指令,按预设规则控制与调节器连接的继电器,控制继电器按压复位按钮,使调节器自动复位。本发明解决了现有技术中通过电气人员来通过复位消除故障状态,耽误时间长,容易产生废品的问题。
2021-03-29 154 6.8

通过固溶度积公式计算及热模拟实验,对不同热装和加热温度条件下的无取向硅钢铸坯中析出相进行了研究.在低于950℃热装时,铸坯中AlN的析出量和尺寸不再变化,但MnS和AlN-MnS的数量及平均尺寸随着热装温度降低而进一步增加,并在温度低于600℃时达到最大值后保持不变.与1200℃相比,1100℃加热的铸坯中AlN、MnS的总固溶量相对更少.相比850℃热装,600℃热装再加热到1100℃的铸坯中AlN和MnS的总固溶量更少,且AlN和MnS尺寸更大.合适的热装温度和加热温度分别为600℃和1100℃. Based on solubility product calculation and thermal simulation experiments,precipitated phases in continuous casting slabs of non-oriented silicon steel were systematically studied at different hot charging and heating temperatures.When the hot charging temperature is below 950 ℃,the content and size of AlN remain unchanged,but the quantity and size of MnS and AlN-MnS increase when the hot charging temperature decreases,reach maximum and remain unchanged when the hot charging temperature is belo... 
2013-08-28 160 5.8

借助OM、激光共聚焦显微镜、质谱仪和电解萃取等设备和方法,研究了添加微量稀土La(质量分数0.001 1%)的取向硅钢在轧制前采用不同加热保温时间对抑制剂固溶行为的影响。结果表明:当稀土取向硅钢在1 250℃分别保温10、20、30 min后,试验钢晶粒尺寸随保温时间延长有先快后慢的长大趋势;三种抑制剂元素Mn、Cu和Al均发生固溶,保温时间对Mn和Cu两种元素的固溶影响明显,固溶量分别由69.8%和43.7%增加至84.2%和85.2%;随着保温时间的延长,稀土取向硅钢中抑制剂的小尺寸未溶物逐渐减少直至消失,较大尺寸未溶物(300~600 nm)逐渐转变为小尺寸未溶物逐步溶入基体中,数量减少且未溶物的类型由复杂逐渐转变为单一。 In this paper the solid solution behavior of the inhibitor under various holding time in 0.001 1 %La oriented silicon steel during reheating had been investigated by using OM, LM, methods of electrolytic extraction and mass spectrometer. The results showed that grain size of the test steel increased significantly with the holding time prolonging when the rare earth oriented silicon steel was heated to1 250 ℃ and held for 10, 20 min and 30 min respectively, and the growth trend slowed down after ... 
2022-02-28 174 5.8

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... 
2013-01-28 155 5.8

站点公告

网站试运行,请大家关注本站公众号,多提宝贵意见!

显示验证码
没有账号?注册  忘记密码?