【作者】 张军；

【Author】 ZHANG Jun;State Key Laboratory of Solidification Processing Northwestern Polytechnical University;

【机构】 凝固技术国家重点实验室西北工业大学；

【摘要】 大型复杂薄壁高温合金铸件有着广泛和重要的应用。在良好充型的前提下实现凝固过程和组织的综合调控,是该类铸件精密铸造的重大技术难题。本文介绍了热控凝固、化学细化和熔体超温处理等多种熔体处理技术在高温合金铸造过程中的应用。更多还原

【Abstract】 The integral superalloy castings with large size, complex shape and thin wall are widely used and have brought great challenges to the casting process. The comprehensive control of solidification process and microstructure under the premise of good filling is very important. Some new methods for precision casting are introduced such as thermally controlled solidification, chemical refining and melt superheating treatment.更多还原