Based on theory analysis of metal solidification and hydrodynamics, momentum convection generated by rotating electromagnetic field do not improve feeding obviously.
据金属凝固理论和磁流体力学分析，电磁搅拌力引起的动量对流对补缩的促进作用并不大。
The solidification shrinkage mechanism of unsaturated polyester resin is analysized by using free Volume theory in this paper.
本文用自由体积理论分析了不饱和聚酯树脂的固化收缩机理。
Theory and present research status of numerical simulation for eutectic solidification with multi-phase field method were expounded.
阐述了多相场法模拟共晶凝固原理和研究现状。
In the paper, based on the Propotional Solidification Theory and Large Orifice Discharge Theory, the foundry technology of gray iron casting shell was designed by the method of CAD.
论文根据均衡凝固及大孔出流理论，用计算机辅助设计的方法改进了壳体灰铸铁件的铸造工艺。
The regular eutectic solidification theory has been established after the great efforts of several years research from the solidification scientists all over the world.
通过各国学者数十年的不懈努力，现已建立了比较完善的规则共晶凝固理论模型，人们对共晶间距的选择机制及其形态转变有了较深刻的理解。
According to experimental results and solidification theory of metals, the author analyses the solidification pro cess of the laser remelted coatings.
根据试验结果和凝固理论，探讨了激光熔敷层的凝固过程。
By using solidification and melted slag theory, series mold powders of low alloy steel, plain carbon steel and high carbon steel, were developed and used in production successfully.
运用凝固理论和熔渣理论，研制开发了适用于低合金钢、普碳钢、高碳钢的系列保护渣并成功地应用于连铸生产。
Subsequently it is reliable for the proportional solidification theory to design feeding system of ring carrier casting of nodular iron.
实际证明：采用均衡凝固理论设计球铁圈形铸件的补缩系统是可靠的。
The theory of liquid metal die forging is the understanding of the process which combines solidification under high pressure with forced feeding by plastic deformation.
液态模锻理论是对高压下结晶凝固和塑性变形下强制补缩复合过程的认识。
The basic principle of the proportional solidification theory was introduced, and the influences of casting construction, feeder position and chill on feeding effect was described.
介绍均衡凝固的基本原理，叙述铸件结构、冒口位置和冷铁对补缩的影响。
According to classical solidification theory and the mechanism of solidification microstructure under pulse current, the effect of super-cooling degree variation on nucleation rate was discussed.
通过讨论过冷度的变化对形核率的影响，研究了电流产生的电磁力效应及焦耳热效应对过冷度的影响，建立了电流与过冷度的关系式。
The finite element theory of temperature and stress field in the process of cast solidification, and method to measure material thermo-physical parameter were concluded.
总结了铸件凝固过程中温度场、应力场的有限元理论以及材料热物性参数的测定方法。
The finite element theory of temperature and stress field in the process of cast solidification, and method to measure material thermo-physical parameter were concluded.
总结了铸件凝固过程中温度场、应力场的有限元理论以及材料热物性参数的测定方法。
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