如何检验铸件的裂纹，缩孔，缩松？
What inspection functions are performed for the detection of casting cracks, porosity, and shrinks?
缩松是铝合金铸件中常见的缺陷。
Shringkage porosity is a common defect style for aluminum alloy castings.
研究了铸件中的缩松和铸件力学性能分布特点。
And the shrinkage porosity distribution in the castings and the mechanical properties of the castings were also researched.
取消冷冒口后，缩孔、缩松问题成功地得到解决。
After canceling the cold riser the shrinkage problem was successfully solved.
在压力下凝固能够有效减轻铝合金铸件的缩松倾向。
The porosity tendency is effectively testricted when the aluminum alloy castings solidify under pressure.
铸造缺陷，尤其是铸造缩松，降低了曲轴的疲劳强度。
Casting defects, especially porosity, will reduce fatigue strength of the crank-shaft.
缩松缺陷是导致多缸柴油机缸盖铸件渗漏的主要原因。
Dispersed shrinkage is the main reason causing leakage of multi-cylinder heads of diesel engines.
以轮毅铸件为例提出了防止缩孔缩松缺陷的工艺措施。
With a wheel hub casting as example, the measures to prevent shrinkage defects were proposed.
用能量观点阐明了缩松区延缓疲劳裂纹扩展的物理本质。
The Physical nature that the fatigue crack propagating rate is slowed down in the Porosity area was expounded using the energy viewpoint.
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。
Shrinkage and shrinkage porosity, stress and deformation often occurs during the production of heavy steel casting.
机架的常见缺陷有裂纹、掉砂、夹渣、缩孔缩松和晶粒粗大等。
The common defects of the housing casting include cracks, sand drop, slag inclusion, shrinkage porosity and rough grain, etc.
辙叉内部的铸造缺陷主要是沿晶界析出的非金属夹杂物和缩松。
The casting defects in the railway frog were mainly the nonmetal inclusions and the shrinkage.
基于温度场分析结果的铸件缩孔缩松预测可以优化铸造工艺设计。
Based on calculated temperature distribution in the casting, the prediction of shrinkage defects can be achieved, which can be used as a tool to optimize the design of foundry technology.
连铸坯内部中心缩松、缩孔是影响铸坯内部质量的主要缺陷之一。
Centerline shrinkage is the main defect that affects the inner quality of continuous casting slab.
采用发热保温冒口，由于冒口的补缩效率提高，缩松倾向明显减少。
The distribution of porosity defects can be reduced to the least by using exothermic insulating riser.
模拟结果表明，在铸件的厚大处和壁与壁的交接处产生了缩孔、缩松缺陷。
The simulation shows that the shrinkage defects forms at the thick shell and the joint of the shell.
多年来，铸造科技工作者对缩孔和缩松进行了大量研究工作并取得重要成果。
Foundrymen have maken a lot of research works to shrinkage and dispersed shrinkage, and gained important success during the past few years.
分析了目前发动机缸体、缸盖渗漏缺陷的主要原因，缩松的形成及影响因素。
The main reason of leakage in cylinder block and head was analyzed, and the formation mechanism and influencing factor of shrinkage was revealed.
初次模拟显示，在阶梯轴的凸台处与其临近连接的阶梯轴段会产生缩孔、缩松缺陷。
The initial simulation indicated that the shrinkage defects formed at the boss sections and the section near the connection of multi-diameter shaft.
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。
The shrinkage cavity, depression, shrinkage porosity, scab and swell defects often took place with the heavy plate castings produced by adopting traditional foundry method.
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。
It is liable to produce various casting defects, such as coarse grain, shrinkage cavity, shrinkage porosity, hot tearing, microstructure segregation and solute segregation.
研究结果表明，过滤可提高铸棒的机械性能，减少夹杂、裂纹、缩松、羽毛晶等常见缺陷。
As a result, the mechanical properties of the castings were improved by filtering. The inclusions, cracks, Porosities and feathered crystals were declined.
提出了预测铸钢件中缩松缺陷的数值方法，考虑了传热、枝晶间液相流动和气体析出等因素。
A numerical analysis method is presented to simulate the shrinkage porosity formation in steel castings on the basis of heat flow, interdendritic fluid flow and possible evolution of dissolved gases.
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。
Large thick-section ductile Iron housing easily produces casting defects such as shrinkage cavity, shrinkage porosity, graphite floating and spheroidizing decay.
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%。
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%.
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 influence of chemical composition, inoculation process, temperature of molten iron and pouring system on the formation of shrinkage cavity and porosity was described.
利用凝固过程自补缩，可使铸件表面质量好，无缩孔、缩松等铸造缺陷，工艺出品率大大提高。
Using self-feeding in solidification can make good surface quality, no shrinkage casting defects of castings; the technology product yield of the casting greatly increases.
利用凝固过程自补缩，可使铸件表面质量好，无缩孔、缩松等铸造缺陷，工艺出品率大大提高。
Using self-feeding in solidification can make good surface quality, no shrinkage casting defects of castings; the technology product yield of the casting greatly increases.
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