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1)  Refine cast microstructure
细化铸态组织
2)  as-cast microstructure
铸态组织
1.
Morphology and Phase Constituent of Secondary Phase in As-cast Microstructure of 7150 Aluminum Alloy;
7150铝合金铸态组织中第二相的形貌及相组成
2.
Effects of Trace Si,Ba and Sn on the As-cast Microstructure of AZ91 Magnesium Alloy;
微量Si、Ba、Sn对AZ91铸态组织的影响
3.
Effect of lithium on as-cast microstructure of Mg-2Al-1Zn-4Y-3Nd alloy;
Li含量对Mg-2Al-1Zn-4Y-3Nd合金铸态组织的影响
3)  As-cast structure
铸态组织
1.
On the basis of twin-roll thin strip continuous casting experiments, structure and composition analysis, the as-cast structure characteristics of 1Cr18Ni9Ti stainless steel twin-roll thin strip were investigated.
通过双辊薄带连铸试验和组织成分分析,对1Cr18Ni9Ti不锈钢双辊薄带的铸态组织特征进行了研究。
2.
The effect of yttrium on as-cast structure and age hardening of the magnesium alloy Mg-9Al-1Zn were investigated.
研究了稀土元素钇 (Y)对Mg 9Al 1Zn合金铸态组织及时效硬化特性的影响。
3.
The investigation was carried out experimentally on as-cast structure evolution of horizontal continuous casting aluminum alloy under combination electromagnetic field.
采用试验的方法研究了组合磁场作用下5182铝合金水平连铸过程中铸态组织的演变。
4)  cast microstructure
铸态组织
1.
Effect of N on in-cast microstructure and mechanical properties of Ti-6Al alloys;
氮对Ti-6Al合金的铸态组织与性能的影响
2.
As-cast microstructure and mechanical properties of Ti-N alloys;
钛氮合金的铸态组织与性能
5)  cast structure
铸态组织
1.
The cast structures and component of vacuum melten and rapid solidified Cu-15Ni-8Sn alloys without Si or with different addition levels of Si (0.
2%)的Cu-15Ni-8Sn合金的铸态组织形貌及构成进行了研究。
2.
The cast structure and component segregation were studied in Cu 15Ni 8Sn with addition of Si by optical microscope, SEM and energy spectrum analysis.
用金相、扫描电镜及电子能谱微区成分分析等方法对添加少量Si的Cu 15Ni 8Sn合金的铸态组织结构及成分偏析进行了研究。
3.
50 %, mass %) of mischmetal on cast structure and hardness of Al 7Si 4Cu alloy is studied by using metallographic analysis,electronmicroscope and thermal analysis.
50%,质量分数)对Al-7Si-4Cu合金铸态组织与硬度的影响。
6)  casting microstructure
铸态组织
1.
The experiment results show that the addition of trace erbium will remarkably refine casting microstructure of LF 3 Al alloy, the grain refinement results in decreased branching of the dendrites and the eutectic compound, make the secondary phase more miner and the phase distribute dispersively, and it can produce a rare earth compound of Al .
结果表明 :微量铒的加入可显著细化LF3铝合金的铸态组织 ,使其枝晶网胞尺寸明显减小 ,网胞间共晶化合物也更稀薄 ;同时 ,使第二相化合物更细小 ,分布也更均匀 ;微量铒的加入可形成Al3Er稀土化合物 ,没有发现粗大的块状化合物。
2.
The results show that in caseof centrifugal casting the casting microstructures are mainly consisted of martensite + M7C3 carbides + residual austenite+ M23C6 carbides,and relates to factual cooling rates.
对20Cr高铬铸铁离心铸造后的铸态组织进行了观察。
3.
Pure rare earth elements, lanthanum and cerium, are added to pure copper, then the inner mechanism and influence of rare earth addition on its absorptivity in copper casting microstructure specific resistance and mechanical properties are studied in this paper.
在纯铜中加入纯稀土元素La、Ce,研究稀土元素在纯铜中的作用机理、吸收率的影响因素以及稀土元素对铸态组织、导电性、力学性能的影响。
补充资料:细粒流态化
分子式:
CAS号:

性质:细粒流态化是相对于粗粒流态化而言的。Geldart强调颗粒密度和粒度对流态化的影响而将颗粒分为四类,并提出相应的判别标准。A类——平均粒径50~60μm,粒度范围20~100μm,密度ρs<1.4g/cm3;B类——粒径范围40~50μm,密度4g/cm3>ρs>1.4g/cm3。C类——粒径<30μm的颗粒。D类——粒径>600μm。 A类颗粒就是通常所说的细粒。细粒流态化操作气速Uf与临界流化速度Umf之比可高达300以上,床层膨胀比较大,床层密度较小,床层处于激烈地湍动和混合状态;两相的概念依然存在,但乳浊相的气速uE远大于umf,一般uE=(3~5)umf;气泡直径Db远大于粗粒床(Db∝dp4),且几乎不随uf的增大而增大;但气泡频率却大于粗粒床,而且在床高方向基本上不聚并;两相的气体交换速率增大;床层的最大稳定气泡直径几乎不随床径而变,因而气体在两相间的分配也大致与床径无关,这显然对放大是有利的。主要应用于要求高转化率和高选择性的催化反应过程,如催化裂化、催化重整等大型生产工艺过程。

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