Shrinkage cavity predication is main purpose of casting simulation.
预测缩孔缺陷产生是铸件凝固模拟的主要目的。
The main deformity of the center housing cast in the automobile turbocharger is shrinkage cavity.
在汽车涡轮增压器中心架铸件生产中主要产生缩孔缺陷。
When such a steel solidifies, a shrinkage cavity know as a "pipe" is formed in the top central part of the ingots.
当这种钢液凝固时，在钢锭头部中央会形成收缩孔。
It is discussed that adiabatic material, as well as ratio of height and width effected solidification, shrinkage cavity and shrinkage porosity.
讨论了锭模的高宽比、绝热板材质对凝固位置及缩孔疏松的影响。
The main task of this paper is to develop prediction & analysis system of shrinkage cavity and porosity defect in a casting for foundry engineering application.
本论文以有限元分析软件为开发平台，运用设计参数化和功能模块化技术，初步开发了面向铸造工程应用的铸件缩孔缩松预测及缺陷分析系统。
Large thick-section ductile Iron housing easily produces casting defects such as shrinkage cavity, shrinkage porosity, graphite floating and spheroidizing decay.
大型厚断面球墨铸铁件在铸造过程中极易产生缩孔、缩松、石墨漂浮及球化衰退等铸造缺陷。
Batch production shows there are no shrinkage cavity and porosity in casting, and no blowholes and sand inclusions on the top surface. The yield of the casting is 81%.
经批量生产验证，铸件内无缩孔、缩松缺陷，上表面无渣孔、气孔缺陷，工艺出品率81%。
The influence of chemical composition, inoculation process, temperature of molten iron and pouring system on the formation of shrinkage cavity and porosity was described.
叙述化学成分、孕育工艺、铁液温度及浇注系统等因素对薄壁球铁铸件缩孔和缩松形成的影响。
The shrinkage cavity, depression, shrinkage porosity, scab and swell defects often took place with the heavy plate castings produced by adopting traditional foundry method.
厚实板类铸件按传统工艺生产，容易产生缩孔、缩凹、缩松、夹砂、胀包等铸造缺陷。
It is liable to produce various casting defects, such as coarse grain, shrinkage cavity, shrinkage porosity, hot tearing, microstructure segregation and solute segregation.
在铸造过程中容易产生各种铸造缺陷，如晶粒粗大、缩孔缩松、开裂、组织和成份偏析等。
The mechanism of the inclusion and shrinkage cavity in high-strength brasses produced by bottom running method was analyzed from the point of view of production technology.
通过实际生产从工艺角度分析了底注法生产窄结晶温度范围高强度黄铜时夹杂、缩孔缺陷的产生机理。
A new method to simulate directly and predict the formation process of shrinkage cavity, its final shape and position for steel castings and ingot was proposed using computer.
提出了可用计算机直接模拟钢铸件、铸锭缩孔形成过程及最终形状和位置的直接模拟法。
The solidification process of the cross-section A-A of the high pressure inner cylinder is simulated and the shrinkage cavity position is predicated by means of utility software.
使用该软件模拟了高压内缸A - A截面的凝固进程，并预计了该截面上缩孔位置。
Three cylindrical steel castings with different diameters were cast to study the shapes of shrinkage cavity and porosity, and the calculated results match the experiments quite well.
计算和实浇了三个不同直径的圆柱形铸钢件，计算结果与实验结果基本一致。
On the basis of 3-D temperature fields calculation of aluminum alloy casting, the liquid face shrinkage capacity method of varied several melt pool is put forward to predicate shrinkage cavity;
在铝合金铸件三维温度场计算的基础上，提出了采用动态多熔池等效液面收缩量法对缩孔进行预测；
Using average shrinkage rates of injection-molded parts to decide the dimension of mold cavity can not satisfy the demand of high precision injection-molded parts.
采用一般的平均收缩率方法来确定模具型腔的成型尺寸，已难以满足精密注塑成型制品的精度要求。
However, on the other perspective, these results show that the cavity pressure has a dominant effect on the amount of shrinkage and error of roundness that occurs.
然而，在其他的角度来看，这些结果表明，上腔压力的收缩和圆度误差量发生显着效果。
By combining the theoretical analysis and test, the monitoring method of observation well, by which the volume shrinkage deformation of the cavity can be derived, is provided and verified.
结合理论分析和试验的方法，验证利用观察井监测腔体蠕变收缩体积这种方法的合理性。
Plastics shrinkage causes the deformation of injection molded parts. The pressure gradient, temperature gradient and shear stress in the cavity make nonuniform shrinkage.
注塑件变形始于塑料的收缩，型腔中压力梯度、温度梯度以及剪切应力的客观存在导致了注塑件各部位收缩的不均一。
Plastics shrinkage causes the deformation of injection molded parts. The pressure gradient, temperature gradient and shear stress in the cavity make nonuniform shrinkage.
注塑件变形始于塑料的收缩，型腔中压力梯度、温度梯度以及剪切应力的客观存在导致了注塑件各部位收缩的不均一。
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