凝固温度

通过外推得到的大块KBr在凝固温度下的临界核约为45对K~+Br~-离子对，这个结果与NaCl的实验值相近。

The critical nucleus size at bulk freezing temperature obtained by extrapolation is about 45 K ~ + Br ~ - ionic pairs , which is comparable to the experimental value of NaCl .

结果表明：随着初始凝固温度增加，α（Al）相所占的比例增大。

The results show that this volume fraction increases with increasing initial solidification temperature .

通过神经网络模拟与传统有限元模拟结果，并结合凝固温度场的实测结果，对比分析了四川大学硕士学位论文神经网络与有限元模拟的与实测结果的相对误差与CPU时间开销。

Resulted from neuro-optimization and FEM respectively , relative error and CPU time in simulation of temperature field of casting are discussed , combined with experimental data .

变质良好时，合金的的凝固温度，共晶温度降低，α（Al）相析出潜热减小，共晶Si相结晶潜热增大。

When best modification obtained , the freezing point and eutectic temperature droped down , while the crystal latent heat of α ( Al ) and Si phases decreased and increased respectively .

Bridgman-Stockbarger法定向凝固温度场的数学模型

A Mathematical Model of the Temperature Field in Directional Solidification of Bridgman-Stockbarger Type

高拉速连铸工艺要求连铸保护渣的熔化温度应适当降低、熔化速度应适当增大、粘度适当减小、凝固温度应适当降低、Al2O3吸收速率应适当增大。

In the high speed casting the melting temperature , viscosity and solidification temperature of the mould flux should be properly reduced and the melting rate and Al 2O 3 absorption rate be increased .

凝固温度设定在65℃，凝固时间为5min，输出功率为40W。

The temperature was set at 65 ℃, whereas the energy was 40W and the time was 5 min.

利用熔化温度、凝固温度、粘度、Al2O3吸收速率与化学成分之间的关系，可以预测连铸保护渣的熔化性能、粘性特征和夹杂物吸收能力。

The melting property , viscous characteristics and inclusion absorbability of the mould flux can be predicted with the aids of the relationship between the melting temperature , solidification temperature , Al 2O 3 absorbability and chemical composition .

结果表明，Ti元素偏析于枝晶间并扩大了合金的凝固温度范围，从而显著影响铸态合金中的共晶数量，随着Ti含量的增加，合金中的共晶数量大幅度增加。

The results show that Ti content has a very important effect on the amount of the eutectic in the as-cast superalloys because Ti is segregated at interdendritic region and enlarges the range of solidification temperature . The amount raises strongly as Ti level is increased .

在Sn-Ag合金系中，在多组元的交互作用下，In、Bi能显著降低合金的平均凝固温度，Sb能提高接头拉伸和剪切强度，RE则会降低接头拉伸和剪切强度；

The results were shown as follows : ( 1 ) In Sn-Ag lead-free solder alloys , under the interaction of multi-composition , the addition of the element In and Bi can decreases the solidification temperature obviously .

保温时间对Al-Si合金内各相初始凝固温度的影响也很小，而凝固焓变值随保温时间的延长经历了由小变大再变小的过程。

Holding time also has a little of effect on initial precipitation temperature of all kinds of phases in the Al-Si alloy , the solidification caloric value changes from small to big and then to small as the holding time extends .

采用数值计算和DFP优化技术，通过对待测液态合金有效热扩散率的优化计算使铸件凝固温度场计算结果与实测温度场趋于一致，最终获得该合金液的有效热扩散率随温度变化的规律。

By the self-regulating and optimized computing the effective thermal diffusivity using numerical simulation and DFP optimization method , the simulation result of solidification temperature field is made accordant with the measured temperature , thereby the formulae expressing the effective thermal diffusivity being changed with the temperature are finally obtained .

采用光纤测温技术是解决这些问题的有效途径，本文针对合金凝固温度场的测试问题设计了一套光纤传感测试系统。

The instead method using optical fiber can solve has those problems .

铸件凝固温度场计算机采集及其后处理

Collection and post-processing of data of casting solidification temperature field

结果表明，凝固温度随剪切速率增大而降低。

The solidifying point varied inversely as shear rate .

合金瞬态凝固温度场测试系统

Testing System of Alloys ' Transient Solidification Temperature Field

熔化温度高于凝固温度和结晶温度。

The melting temperature is higher than the temperatures of solidification and crystallization .

高温度梯度定向凝固温度场的实验测定及微机数据处理

Measurement of the Temperature Field during High Gradient Directional Solidification and the Data Processing

二维凝固温度场凝固边界形状的辨识方法

The Method to Identify the Shape of Solidification Shell of Two Dimension Temperature Field

本文创建了一种较为准确的计算铸件凝固温度场的方法。

A more precise model to calculate casting solidification temperature field has been built .

测定金属凝固温度场的实验教学

Experiment Teaching of Measuring Metal Solidification Temperature Field

随着颗粒含量的增加，使材料的凝固温度区间变长。

As the content of particles increased , it widened the solidification temperature range .

可淬硬汽车铸铁凸轮轴凝固温度场的实验研究

The Experimental Study of Solidifying Temperature Field of

铸件凝固温度场有限元分析中界面热阻的处理

Disposal of interface thermal resistance in temperature field of casting solidification by finite element analysis

铸件凝固温度场计算机实测验证及提高精度的方法

Method of raising precision and test verification of computer to solidification temperature field with casting

软件补偿技术在铸件凝固温度场测试中的应用

Compensation Technique with the Aid of Software and its Application to Temperature Measurement of Castings

介绍材料成型与控制专业材料成形原理中测定金属凝固温度场实验的教学案例。

The paper introduces the experimental teaching case of the measurement of metal solidification temperature field .

定向凝固温度场的实验研究

The Temperature Field in Directional Solidification

连铸结晶器保护渣的凝固温度

Solidification Temperature of Concasting Mold Fluxes

提高凝固温度，可以缩短凝固时间，并可显著增加豆腐凝胶的强度。

Coagulation time could be decreased by increasing coagulation temperature and tofu gel strength increased remarkably .