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1)  Castings with Large Ratio of Height to Diameter
大高径比铸件
1.
Solidification Characteristics and Microstructure of Castings with Large Ratio of Height to Diameters in Squeezing Casting;
挤压铸造大高径比铸件的凝固特性和组织
2)  high ratio of height to thickness
大高径比
1.
The influence of squeeze casting on cup-shaped ZA27 alloy castings with high ratio of height to thickness (M=7) was investigated.
研究了挤压铸造比压对大高径比(M=7)ZA27合金杯形铸件组织与不同部位性能的影响。
2.
The fundamental problem of plunger type squeeze ZA27 alloy castings with high ratio of height to thickness (M=H/D=7) was investigated.
研究了大高径比(M=H/D=7)ZA27合金铸件的柱塞式挤压铸造。
3)  larger ratio of height to diameter
大高径比
1.
The distinct characteristic of squeeze casting with larger ratio of height to diameter is (heterogenous) distribution of squeeze pressure.
大高径比挤压铸件成形时的一个显著特征是压力沿着轴向分布严重不均。
4)  heavy high manganese steel casting
厚大高锰钢铸件
1.
The mechanism of the micro-crack produced in heavy high manganese steel castings(>120 mm) was studied in this paper.
因此,凝固过程中的拉应力及这些夹杂物的存在是厚大高锰钢铸件形成微观裂纹的主要原因。
5)  heavy casting
大型铸件
1.
The study on the mould flux for heavy casting;
大型铸件用保护渣的分析研究
2.
The types of burning-on defects of heavy castings and their formation reasons were introduced,and the influences of some factors on the effect of coatings to prevent burning-on defects were analyzed including:ingredients of the coating, combination of refractory granularities,high temperature stability,sintering property,peeling off property,and so on.
介绍大型铸件粘砂的种类和形成原因,并对涂料的组成、耐火材料的粒度组合、高温稳定性能、烧结性能、剥离性能等因素对涂料抗粘砂作用的影响进行了分析。
6)  heavy castings
大型铸件
1.
Calculation of Effective Puring Time for Heavy Castings;
大型铸件有效浇注时间的计算
补充资料:高径比
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性质:反应器的高度与直径之比。当通过动力学计算确定了反应器的体积后,便需要选取反应器的直径和计算出它的高度,并由此得出反应器的高度与直径之比。高径比不是随意决定的,而是根据造价和操作费用的综合经济效益求得的。直径较大的容器,特别是高压设备,壁厚增大,造价较高,但在相同处理量下流速低,输送功率小。改变高径比也会改变床层内的温度分布。故需慎重选用高径比。

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