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1·The reasons resulting in the shrinkage porosity, gas-hole and impacted sand in bronze castings were analyzed.

分析了锡青铜叶轮铸件出现的缩孔、 气孔、冲砂等缺陷的原因。

2·Shrinkage and shrinkage porosity, stress and deformation often occurs during the production of heavy steel casting.

大型铸钢件在实际生产中易产生缩孔缩松、应力变形等缺陷。

3·And the shrinkage porosity distribution in the castings and the mechanical properties of the castings were also researched.

研究了铸件中的缩松和铸件力学性能分布特点。

4·The common defects of the housing casting include cracks, sand drop, slag inclusion, shrinkage porosity and rough grain, etc.

机架的常见缺陷有裂纹、掉砂、夹渣、缩孔缩松和晶粒粗大等。

5·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。

6·By use of orthogonal test design, how the injection speed, pouring temperature and mold temperature effects the casting shrinkage porosity forming is studied.

然后，本文通过正交试验的方法研究了压射速度、浇注温度和模具预热温度对铸件缩松缩孔缺陷的影响。

7·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。

8·The results showed that the root reason for valve body failure was seriously casting defect exist and its big and density shrinkage porosity form the original crack;

结果得出：阀体失效的主要原因是阀体本身存在严重的铸造缺陷，铸造疏松严重、孔洞尺寸大乃于形成原始裂纹源；

9·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。

10·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。