The results showed the gating system which is according to proportional solidification, the large orifice discharge theory with blind feeder and iron chill has avoided defects of heavy ductile iron castings.
简述了某一曲轴连杆铸件的结构特点,采用顺序凝固理论和均衡凝固理论设计两种工艺方案,通过对比,结果表明,运用大孔出流,均衡凝固理论设计的浇注系统,采用暗冒口配合冷铁工艺,可以有效解决厚大球铁件生产中的铸造缺陷。
Considering of the problems exist in practice,large orifice discharge principle is employed to study the pressure distribution of ring runner system,the even ablity for discharging of gates,the relationship of flow with the position of sprue and the type of gates.
根据生产中存在的问题 ,用大孔出流理论研究了环形横浇道系统的压力分布、内浇道出流均匀性及流量与直浇道引入位置和内浇道引入方式之间的关系 ,提出了圆形铸件环形横浇道系统新的设计思
In the paper,based on the Propotional Solidification Theory and Large Orifice Discharge Theo- ry,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。
Analysis on parameters of limiting height of aspiration for density current outflow from orifice;
异重流孔口出流极限吸出高度分析
3-Demesion water-air Two-Phase Numercial Simulation on Outflow in the hole of sluice gate;
闸孔出流水气二相流三维数值模拟
Heat transfer enhancement within an internal passage by combinations of ribs and suction holes
内冷通道带肋和出流孔壁面的换热研究
Measurement of suction holes discharge coefficients (Cd) in an internal passage with rib turbulators and suction holes are presented.
在根据相似理论放大的模型上,测量了带肋壁与出流孔内流通道中沿主流流向分布的各出流孔的流量系数Cd。
The valve shown has a pilot and a bleed orifice.
该阀具有控制孔和流出孔。
The water drained out of the hole in the pail.
水从桶的孔里流出来。
Analysis of changes of pressure before the orifices in laterals under low pressure drip irrigation
低压滴灌小孔出流孔前压力变化研究
Characteristics of vertical sharp-edged orifice discharge(Ⅲ) Effect of geometry on orifice discharge coefficient
垂直锐边孔口的自由出流特性(Ⅲ)孔几何形状对孔流系数的影响
To excrete perspiration through the pores of the skin.
出汗，流汗通过皮肤上的毛孔排泄汗液
(of a person,his face,his actions,etc)show(emotion,etc)
（指人、人的面孔、动作等）显出,流露（情绪等）
The density P is that of the fluid escaping from the orifice.
上式中p是从小孔喷出的流体密度。
They tapped the sugar maples and the sap began to flow.
他们在糖枫树上开孔，树汁便流出了。
A sea of faces betrayed their grief.
无数面孔的表情流露出内心的悲伤。
It is the porosity due to interconnected pores that can be filled with and emptied of water.
这种孔隙率是水可流出和流入的连通空隙。
Flow Characteristics in Passages with Rib-Turbulators and Film-Holes' Extractions;
带肋壁与气膜孔出流通道的流动特性研究
Aerodynamic Investigation of Flow Characters of Internal Cooling Channel with Both Rib-roughened Walls and Film Hole Suctions;
有肋和气膜孔出流的通道内流动特性研究
Effects of air injection on outlet flow field of compressor cascade
孔隙射流结构对扩压叶栅出口流场特性的影响
Effect of rib turbulator orientation and bleed hole location on flow character
肋角度和出流孔位置对流动特性的影响
Aerodynamic Investigation of Flow Fields in the Channel with Ejection/Injection Through the Holes on the Wall;
有出流和入流的通道和孔内流场的实验和数值模拟研究
Attend to after the cranium holes double-barrelled drainage treats the old age skill of cerebral hemorrhage
颅钻孔双管引流治疗老年性脑出血的术后护理
Using Optimize Multinomial Analysis Runoff Modulus in Naodehai Reservoir;
闸孔出流系数率定方法研究及个例分析
The grouting curtain method in treating severe mobile sand occurred in artificial spaded pile
注浆帷幕法对人工挖孔桩出现流沙现象的治理