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- The technic of directional solidification is reviewed briefly. 简要地回顾了定向凝固工艺的发展。
- Water cooling circuits provide rapid, and directional solidification. 水冷循环提供迅速定向凝固。
- The directional solidification of metal/gas eutectic (Gasar) is a novel process for fabricating regular porous metals. 金属/气体共晶定向凝固是一种制备规则多孔金属的新工艺。
- A cellular automaton model was developed to simulate the primary spacing selection of dendritic array during directional solidification. 发展了一个元胞自动机模型来模拟定向凝固中枝晶阵列的一次间距选择。
- Directional solidification technology is an effective method to prepare materials with single orientation structure and high mechanical properties. 定向凝固枝术是制备具有单一取向组织和高力学性能材料的有效方法。
- A self-made directional solidification furnace was used to fabricate high purity aluminum(HPA) ingots,and the morphology of grains was studied. 采用自制的定向凝固提纯炉定向制备了大直径高纯铝圆锭,并对其定向凝固组织中晶粒的生长状况进行了研究。
- Thermomechanical fatigue(TMF) life of three temperature-strain phase angles and two specimen dimensions was studied in directional solidification(DS) superalloy DZ125. 对DZ125定向凝固铸造镍基高温合金进行了三种相位和两种试样尺寸的热机械疲劳实验研究。
- Its products include float-zone crystal growers, Czochralski crystal growers, poly-silicon reactors, directional solidification furnaces, Bridgeman crystal growers, etc. 其产品包括晶体区熔炉，直拉式单晶炉，多晶硅反应炉， 定向结晶多晶硅铸锭炉，下降式单晶炉等。
- However, impurity aluminum must be enriched on the grain boundary during the crystallizing process.So, we can't removal it completely by directional solidification. 但由于在结晶过程中晶界上会富集部分铝元素，因而定向凝固法并不能除去这一部分杂质。
- The no machining directional solidification hollow turbine blades, hollow guide vans and complex structure parts used in aero engine and gas turbine made by vacuum precision investment casting. 航空发动机、燃机等精铸真空无余量空心涡轮、导向叶片及复杂结构件。多种热处理炉上用料盘,夹具等耐热合金钢精铸件。
- Samples with uniformly oriented microstructure were produced in a high temperature gradient directional solidification apparatus named Electron Beam Floating Zone Melting (EBFZM) furnace. 利用电子束区域熔炼高温度梯度定向凝固装置制备了定向效果较好的Nb-Si基自生复合材料试棒。
- The interface morphology plays an important role in microstructure during directional solidification, we can display the variety of the interface morphology using phase-field method. 定向凝固过程中的界面形态对凝固组织有着决定性作用,相场法可以很好地展示凝固过程界面形态的演化。
- The percentage of RE in the matrix increases with the increase of solidification rate;the carbides in directional solidification microstructure are refined by RE added in high chromium cast iro... 稀土对高铬铸铁定向凝固组织中的碳化物具有细化作用,并随凝固速度的增加,定向凝固高铬铸铁组织细化程度提高,同时稀土的加入使高铬铸铁的抗拉强度明显提高。
- The effects of crystal orientation and pulling rate on the liquid-solid interface morphology in the directional solidification of DD8 nickel-base superalloy have been investigated. 研究了DD8镍基高温合金定向凝固界面形态的晶体取向及抽拉速度的影响。
- The current major solidification technologies used for production of mc-Si ingots are casting, heat exchange method (HEM), directional solidification system (DSS) and electro-magneto casting (EMC). 多晶硅锭定向凝固生产技术主要包括浇注法、热交换法(HEM)、定向凝固系统法(DSS)和电磁铸锭法；
- She cast her eyes down to avoid direct eye contact. 她垂下双目以避免对视。
- Effect of direct current steady-state magnetic field on the microstructure of directionally solidified Al-11.0%Si multiphase eutectic alloy is studied by applying the optimized self-making installation of Bridgman directional solidification. 使用经改进后自制的Bridgman定向凝固装置;研究了直流稳恒磁场对多相合金Al-11.;%25Si定向凝固组织的影响。
- I thought the law was directed against husbandmen. 我认为该法律是直接针对农民的。
- The complaints are directed at you. 这些牢骚是对你而发的。
- I'll book you on a direct flight to London. 我将为你预订直飞伦敦的航班。
