摘要
采用热力学软件JMat Pro计算了无取向硅钢中Si(3.0%~3.6%)、Al(0.5%~1.5%)、Mn(0.3%~0.9%)不同质量分数情况下的密度、电阻率、比热容和热导率。分析了Si、Al、Mn含量对无取向硅钢的密度、电阻率、比热容以及热导率的影响规律。计算结果表明,在25~500℃区间内,无取向硅钢密度随元素含量增加而降低,以300℃为例,当w(Al)从0.5%增加至1.5%,w(Si)与w(Mn)保持3%和0.3%不变时,无取向硅钢密度降低0.8%;当w(Si)从3.0%增加至3.6%,w(Al)与w(Mn)保持0.8%和0.3%不变时,无取向硅钢密度降低0.53%;w(Mn)从0.3%增加至0.9%,w(Si)与w(Al)保持3%和0.8%不变时,无取向硅钢的密度几乎没有改变。电阻率方面,以300℃为例,对无取向硅钢影响最大的是w(Al),从0.5%增加至1.5%,电阻率增长16.42%;w(Si)从3.0%增加至3.6%,电阻率增长5.63%,而w(Mn)从0.3%增加至0.9%,电阻率增长仅有2.82%。比热容方面,在25~700℃温度区间内,比热容随温度增加逐渐增大,以300℃为例,当w(Si)从3.0%增加至3.6%,比热容的增长0.52%;w(Al)从0.5%增加至1.5%,比热容的增长达到1.04%,而w(Mn)从0.3%增加至0.9%比热容的增长仅有0.35%,可以看出在该温度区间内Al对无取向硅钢比热容影响最大,其次是Si,而Mn对无取向硅钢比热容影响最小。热导率方面,表现出明显的温度区间依赖性,在0~800℃区间内,Si、Al含量增加随温度升高无取向硅钢热导率明显下降;而在800~1400℃区间内没有明显改变,Mn含量的改变与无取向硅钢热导率随温度变化曲线关联性不大。
The thermodynamic software JMat Pro was used to calculate the density,resistivity,specific heat capacity,and thermal conductivity of non-oriented silicon steel with varying contents of Si(3.0%~3.6%),Al(0.5%~1.5%),and Mn(0.3%~0.9%).The effects of Si,Al,and Mn contents on the physical properties of non-oriented silicon steel were analyzed.The results indicate that within the temperature range of 25~500℃,the density of non-oriented silicon steel decreases with increasing element content.For example,at 300℃,when the Al content increases from 0.5%to 1.5%while maintaining Si and Mn contents at 3%and 0.3%,respectively,the density decreases by 0.8%;when the Si content increases from 3.0%to 3.6%while keeping Al and Mn contents at 0.8%and 0.3%,respectively,the density decreases by 0.53%;and when the Mn content increases from 0.3%to 0.9%while maintaining Si and Al contents at 3%and 0.8%,respectively,the density changes are negligible.Regarding resistivity,at 300℃,the Al content has the most significant impact,with a resistivity increase of 16.42%when it increases from 0.5%to 1.5%;the Si content increases by 5.63%when it rises from 3.0%to 3.6%,whereas the Mn content only causes a 2.82%increase in resistivity.Specific heat capacity gradually increases with temperature within the range of 25~700℃.For example,at 300℃,the specific heat capacity increases by 0.52%when the Si content rises from 3.0%to 3.6%,and by 1.04%when the Al content increases from 0.5%to 1.5%,while the increase is only 0.35%for Mn content rising from 0.3%to 0.9%.Thermal conductivity exhibits clear temperature-dependent behavior:within the range of 0~800℃,it decreases significantly with increasing temperature due to higher Si and Al contents;however,there is no significant change in the 800~1400℃range,and Mn content variations do not show a strong correlation with changes in thermal conductivity.
作者
吴宇轩
王海军
乔家龙
夏雪兰
施立发
裴英豪
WU Yuxuan;WANG Haijun;QIAO Jialong;XIA Xuelan;SHI Lifa;PEI Yinghao(School of Metallurgical Engineering,Anhui University ofTechnology,Maanshan 243000,China;Engineering and Research Center for Continuous Technology,Center Iron andSteel Research Institute Co.Ltd.,Beijing 100081,China;Maanshan Iron&Steel Company Limited,Maanshan 243002,China)
出处
《电工钢》
2025年第4期25-31,共7页
ELECTRICAL STEEL
基金
安徽省科技攻坚计划重点项目(202423i08050049)
国家自然科学基金项目(52374316)
安徽省教育厅科学研究重点项目(2022AH050291)。
关键词
无取向硅钢
密度
电阻率
比热容
热导率
non-oriented silicon stee
density
specific heat capacity
Thermal conductivity
