摘要
研究了K424合金X型拉杆前段的精铸工艺。该铸件为大尺寸中空盲管薄壁件,在试制过程中,陶芯的断裂和脱除、铸件的收缩控制和冶金质量都存在一定难度;针对这些问题,对X型拉杆前段从模具收缩设计、蜡模制备方案、浇注系统设计和铸造工艺优化等方面进行了系统的研究,试制出的K424合金X型拉杆前段铸件冶金质量优良、尺寸精确,满足了设计和使用要求。
Large size hollow thin-walled K424 alloy X-type pulling rod front end with blind tube was produced by investment casting.There exist some problems in trial-production,such as crack and demoulding of ceramic cores,contract control of the castings and melting quality.Aiming at the problems mentioned above,some measures,such as contraction design,wax pattern preparation,gating system design and processing optimization,were presented.Through improving measures,the qualified castings were produced successfully,meeting the design and use requirement.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2016年第6期625-627,共3页
Special Casting & Nonferrous Alloys
关键词
K424合金
薄壁件
精密铸造
K424Alloy
Thin-walled Tube
Investment Casting
