casting

Imitation antique bronze drum for tourism was produced by investment casting.
采用熔模铸造技术制备了仿古旅游工艺品———铜鼓。

The "T" shape aluminium alloy casting were selected to test the simulation model.
作者选择了”T”型铝合金铸件进行了实验研究。

Adding 0.5wt% yttrium can refine theα-colony in both the casting and heat-treated titanium alloys added with boron.
添加0.5wt%钇能够使铸态和热处理态的加硼BT20钛合金的α集束尺寸变小。

The research on the growth morphology of TiC indicated that the solid-liquid interface of TiC on solidification is a kind of transition interface in melting-casting TiC/Ti-6Al-4V composites. Thus, the solidified TiC presents both faceted and non-faceted growth morphologies.
对熔铸法制备TiC/Ti-6Al-4V复合材料中的TiC生长形态研究表明,TiC凝固时其固液界面为过渡性界面,因此TiC既有小平面生长形态又有非小平面生长形态。

Simulation results show that the measuring accuracy of the method is superior to the traditional methods. Experiment on real casting DR images indicates it is feasible and efficient.
仿真结果表明，该方法的测量精度优于传统方法，对实际铸件DR图像的实验结果验证了其高效性。

The synthesis principle and the types of high viscous Nylon via anionic polymerization are introduced in details, especially the research advance of monomer casting Nylon and reactive extrusion Nylon.
概述了阴离子聚合高粘度尼龙的优点,较详细地介绍了阴离子聚合高粘度尼龙的合成原理及种类,重点介绍了铸型尼龙的物理改性、化学改性研究进展,以及反应注射成型尼龙和反应挤出尼龙的研究状况,指出了阴离子聚合高粘度尼龙的发展方向。

In this paper, we adopt prepolymer method to synthesize casting PU elastomer.
本文采用预聚物法合成浇注型聚氨酯弹性体。

To solve the problems such as weepage,segregating,stomata,waterlines on the concrete surface in the concrete casting process,systematic control theory should be applied with well-organized,rational arrangement of construction program.
为解决混凝土浇筑过程中出现泌水、离析,混凝土实体表面出现麻面、气孔、水纹等质量问题,在混凝土浇筑过程中运用系统控制理论,精心组织,合理布置施工方案。

农业科学