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Influence of crucible material on inclusions in 95Cr saw-wire steel deoxidized by Si–MnYang Li,Chang-yong Chen,Guo-qing Qin,Zhou-hua Jiang,Meng Sun,Kui ChenSchool of Metallurgy, Northeasten... crucible materials(SiO2,Al2 O3,MgO·Al2 O3,MgO,and MgO-CaO) were used.The results indicate that SiO2,Al2 O3,and MgO·Al2 O3 are not suitable for smelting low-oxygen,low-[Al]s 95 Cr saw-wire steel,mainly......
for the second times heating[3]. Continuous casting of titanium alloy billets with cold crucible was reported[4-7]. Steel ingots and aluminium ingots with crack free and preferable structure were... Continuous and directional solidification technology of titanium alloys with cold crucible CHEN Rui-run(陈瑞润), DING Hong-sheng(丁宏升), GUO Jing-jie(郭景杰), BI Wei-sheng(毕维生), FU Heng-zhi(傅恒志) School......
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Characterization of CdZnTe crystal grown by bottom-seeded Bridgman and Bridgman accelerated crucible rotation techniques WANG Tao(王 涛), JIE Wan-qi(介万奇), XU Ya-dong(徐亚东), ZHA Gang-qiang... with diameter up to 60 mm using bottom-seeded Bridgman method as well as Bridgman accelerated crucible rotation technique (ACRT-B) was investigated. Both ingots exhibit high yields, where single......
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体流场中,分析所用的类型选用标准湍流模型,从而求得电磁搅拌参数对铝合金熔体所产生的最大流速. 图1 椭圆坩埚结构示意图 Fig. 1 Structure profile of oval crucible 1.4 物理模型假设 在对铝合金熔体的电磁场和流场进行模拟时,进行如下假设: 1) A356铝合金熔体视为不可压缩的牛顿流体. 2) 忽略温度对电磁搅拌装置内... over major axial X((a1), (b1), (c1), (d1), (e1)) and minor axial Y((a2), (b2), (c2), (d2), (e2)) of crucible 图4所示为不同电磁频率下的电磁力在坩埚长轴X和短轴Y上的分布情况.由图4可知,在电流强度一定的情况下,随着电磁频率的增加相应半径位置上的电磁力也逐渐变大,且在同一电磁频率下,在坩埚的......
Effect of Permeable Crystalline Material on Steel Reinforcement Corrosion of Concrete YU Jian-ying1,WANG Gui-ming1 (1.Wuhan University of Technology, Wuhan 430070, P. R. China) 摘要:Permeable... the pores and cracks of concrete, and increase the impermeability of concrete. This paper reported the results of a study conducted to evaluate steel reinforcement corrosion of concrete specimens......
the mixed powders. The carbon steel alloy was melted in an MgO crucible in an induction heating furnace. After melting, MMed TiC/Cu-Sn (1%, mass fraction) powders were introduced into the molten metal... Fabrication of cast carbon steel with ultrafine TiC particles Sang-Hoon LEE, Jin-Ju PARK, Sung-Mo HONG, Byoung-Sun HAN, Min-Ku LEE, Chang-Kyu RHEE Nuclear Materials Research Division, Korea......
氧氮氢气体分析仪的石墨坩埚升温过程研究张长均1,王蓬1,黄小峰1,杨植岗1,张之果1(1.北京市钢铁研究总院)摘 要:利用激光瞄准光电高温计对同一坩埚的温度重复性和坩埚间的温度重复性进行试验,并绘制了标准坩埚,套坩埚的功率与温度曲线,标准坩埚和套坩埚常用功率的升温过程曲线.实验表明:同一标准坩埚在4.0 kW功率下重复加热5次,每次加热时间为50 s,坩埚内的温度不变,因此在铜的分析中重复使用坩埚是可行的;在相同的条件下对11只标准坩埚进行加热,测得坩埚温度的标准偏差远大于同一坩埚的温度标准偏差;加热功率从1.......
