2) foundry defect
铸造缺陷
1.
This paper analyzes the causes of turbine blade foundry defects and their preventions.
本文分析了水轮机组叶片铸造缺陷的产生原因和防止措施,水轮机组不锈钢叶片铸造裂纹的形成是由于铸造热应力和组织应力过大,超过材料的抗拉强度,通过对铸态下的金相组织分析,找出了水轮机叶片铸造与热处理缺陷产生的原因,并提出了改进措施。
2.
The 16m3 skim-bob feeding system from traditional way may cause sone foundry defects, such as : dirt inclusion, air hole, etc.
用传统方法设计计算16m~3渣包的浇注系统,有时会存在夹渣、气孔等铸造缺陷,而且铸件清整工作量大。
3) casting defects
铸造缺陷
1.
Casting Defects and Its Counter-measures on Motorcycle Damping Cylinder;
摩托车减震筒铸造缺陷及预防措施
2.
According to the simulation results,the origin of casting defects and hot spots was found,and the process could be optimized and improved by modifying the processing parameters.
利用基于MAGMAsoft的铸造CAE技术,对阀盖铸件的热节部位,冒口的补缩能力等进行数值模拟,根据模拟结果,找出原工艺热节和铸造缺陷产生的原因,并通反复修改工艺参数对原工艺进行优化改进,得到较为理想的工艺方案。
3.
Analyzed the major reason of side frame casting defects.
分析了侧架的结构特点,找出了该产品铸造缺陷产生的主要原因,通过改变浇注系统的位置、表面刷涂料、放冷铁以及局部使用铬铁矿砂等工艺措施,提高了侧架的铸造生产合格率。
4) casting defect
铸造缺陷
1.
Study on a Expert System for Analysis of Casting Defect;
铸造缺陷分析专家系统的研究
2.
The effect of casting defect such as microporosity and the inclusions in the process of crack initiation,crack propagation and fracture was analyzed.
系统研究了L114A合金疲劳损伤特征,分析疏松、夹杂物等铸造缺陷在疲劳裂纹的形核、裂纹的扩展以及瞬断中所起的作用,表明铸造过程中形成的铸造缺陷数量、尺寸、位置对金属的疲劳性能都有不同程度的影响。
3.
Iron smelting and spheroidizing,casting defects prevention should be controlled effectively.
根据球墨铸铁的基体组织、石墨形态、机械性能与化学成分的关系,对化学成分进行了设计选择;对铸铁熔炼、球化处理及铸造缺陷的防止等方面提出了控制措施,并应用于实际生产。
6) Cast Defect
铸造缺陷
1.
Ni-based alloy with Y2O3 and composite modifier was used to repair cast defect in blade.
采用自配的添加稀土氧化物Y2O3和复合变质剂的镍基合金粉末对叶片铸造缺陷进行激光熔覆修复。
2.
At the original fatigue crackles,cast defect and a plenty of harmful elements enriched locally were found,fo.
结果表明断口面上可见人字状裂纹扩展台阶,由摇枕的底部向上部扩展,断口并无明显疲劳断裂贝纹线特征;裂纹源区铸造缺陷及局部富含大量有害元素,如Pb、Sn、S等;常规理化性能检验结果符合标准要求。
3.
Effects of laser cladding parameters and content of Y_2O_3 on thermal crack sensibility of aeroengine blade with cast defect were studied.
研究了激光熔覆工艺参数和Y2O3含量对航空发动机叶片铸造缺陷激光熔覆开裂敏感性的影响。
补充资料：点缺陷(见晶体缺陷)
点缺陷(见晶体缺陷)
point defect
点缺陷point defeet见晶体缺陷。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条