K424薄壁密封片铸件无余量精密铸造工艺研究
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- 英文论文题名：Research on Investment Casting Technique of a Thin-walled Seal Plate Casting of K424 Superalloy
- 论文作者：王祯 ; 李俊涛 ; 孔胜国 ; 陈兴福
- 英文论文作者：Wang Zhen ; Li Juntao ; Kong Shengguo ; Chen Xingfu ; High Temperature Matericals Research Division ; Central Iron and Steel Research Institute
- 年：2015
- 作者机构：钢铁研究总院高温材料研究所;
- 论文关键词：高温合金 ; 铸造 ; 浇注系统
- 英文论文关键词：superalloy ; costing ; gating system
- 会议召开时间：2015-05-20
- 会议录名称：第十三届中国高温合金年会论文集
- 英文会议录名称：Proceedings of the 13th China Superalloys Conference
- 语种：中文
- 分类号：TG249.5
- 学会代码：ZGJS
- 会议名称：第十三届中国高温合金年会
- 会议地点：中国北京
- 主办单位：中国金属学会高温材料分会
- 学会名称：中国金属学会
- 页数：4
- 文件大小：670k
- 原文格式：O
- 会议级别：全国
摘要
K424合金密封片铸件为某型号航空发动机尾喷口关键部件,采用无余量精密铸造工艺铸造而成。该铸件为多吊耳多孔结构大尺寸薄壁铸件,长度约360mm,底板壁厚为0.8~1mm。在铸造过程中极易产生疏松和裂纹缺陷,冶金质量控制困难;并且由于壁薄,在铸造过程中变形量大,尺寸精度难以保证。本文针对该铸件的铸造工艺难题,对铸件的浇注系统设计和浇注工艺进行了系统的研究,研制的K424密封片铸件冶金质量优良,尺寸精确。
The seal plate made by investment casting is an important part of an aero engine nozzle.It is a long plate structure with many lifting eyes and cavity frames,and the length is about 360 mm and the thickness is about 0.8 ~ 1mm.It is very easy to have the defects such as porosity and crack due to the construction of this casting,so that the quality control of the melting and casting is very difficult The dimensional accuracy is also hard to reach because of the deforming due to the thin thickness of the plate.The gating system design and the casting technique to resolve these difficulties were researched in this paper,the production has a nice quality of both metallurgy and dimensions.
The seal plate made by investment casting is an important part of an aero engine nozzle.It is a long plate structure with many lifting eyes and cavity frames,and the length is about 360 mm and the thickness is about 0.8 ~ 1mm.It is very easy to have the defects such as porosity and crack due to the construction of this casting,so that the quality control of the melting and casting is very difficult The dimensional accuracy is also hard to reach because of the deforming due to the thin thickness of the plate.The gating system design and the casting technique to resolve these difficulties were researched in this paper,the production has a nice quality of both metallurgy and dimensions.
引文
[1]李俊涛.铸造工艺对K424合金涡轮组织和性能的影响[J].材料工程,2006,S1.
[2]中国铸造协会.熔模铸造手册[M].北京:机械工业出版社,2000.
[3]陈国桢,肖柯则,等.铸件缺陷与对策[M].北京:机械工业出版社,2002.
[2]中国铸造协会.熔模铸造手册[M].北京:机械工业出版社,2000.
[3]陈国桢,肖柯则,等.铸件缺陷与对策[M].北京:机械工业出版社,2002.