共搜索到235条信息，每页显示10条信息，共24页。用时：0小时0分0秒656毫秒
) of the Al addition amount, respectively. Raw materials without KClO3 were first mixed in a mixing barrel for 1 h, and then KClO3 was introduced into the mixture. After the mixing process, partial......
condition used in the experimental procedure led to a friction factor of m=0.18 at the die sample interface which was determined from a barrel compression test [8]. Then, in order to apply this value......
deformation, b is the barrel parameter, ΔR is the difference between the maximum and top radii, ΔH is the reduction of height of cylinder after deformation, R0 is the initial radius of cylinder, H0......
in height and 25 mm in diameter, as shown in Fig. 1 [6-7]. 2.2 Experimental procedure Firstly, the cement, salt, river sand and water in a mixing barrel were whisked together until they well combined......
preparation and microstructure evolution of rheomoulding forming[J]. Journal of Iron and Steel Research International, 2002, 7(suppl.): 407?409. [5] 罗守靖, 田文彤, 谢水生, 毛卫民. 半固态加工技术及应用[J]. 中国有色金属学报, 2000, 10(6......
slurry preparation and component shaping [P]. CN 00816228.X, 2003. [5] Ji S, Fan Z, Bevis M J. Semi-solid processing of engineering alloys by a twin-screw rheomoulding process [J]. Materials Science......
and forging forces at the interface (tool-work piece). Using taper thread tool, the mean grain size decreased while TA increased. LONG et al [7] established a thermo-mechanical finite element model... thread taper tool pin profile with a shoulder diameter of 12 mm and constant pin diameter of 4 mm (Fig. 1(c)). Trial runs were carried out for five distinct TAs, viz., 0°, 1°, 2°, 3°, and 4°, and other......
杰, 等. 冷连轧机带钢单锥度辊边降控制[J]. 北京科技大学学报, 2006, 28(8): 774-777.LU Hai-tao, CAO Jian-guo, ZHANG Jie, et al. Edge drop control of a taper roll during continuous cold rolling[J]. Journal of University......
strengthening κ phase, resulting in the higher mechanical properties for the alloys. While the alloy is aged at 460 ℃ (HT1), the γ2 phase exhibits a taper and knitted structure, as shown in Table 2......
究中,该成分合金的临界直径达到了4.8 mm. 图1 Cu50Zr42Al8锥形试样的XRD谱 Fig.1 XRD patterns of Cu50Zr42Al8 as-cast taper sample 取直径为4 mm处的Cu50Zr42Al8锥形试样切片用于DSC分析,测定试样的热稳定性参数.图2所示为Cu50Zr42Al8铸态BMG的DSC曲线.由图2可见......
