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铝合金石膏型熔模精密铸造是国外近年来不断完善提高,获得精密、复杂、整体、薄壁铝合金铸件的一种新型工艺。航空部组织技术攻关,仅仅用了一年多时间,就在模料和石膏铸型的研究、合金熔炼技术、成型工艺和专用设备研究方面取得突破。由航空部和有关厂、所、院以及航天部、兵器部、清华大学、哈尔滨工业大学有关专家组成的鉴定委员会,对该课题研究取得的成绩给予较高评价。
Aluminum alloy gypsum-type investment casting precision casting in recent years continue to improve and improve abroad, access to sophisticated, complex, whole, thin-walled aluminum alloy casting a new technology. In just over a year’s time, the aviation department organized technical breakthroughs in the research of mold and gypsum molds, alloy melting technology, molding process and special equipment research. The appraisal committee composed of relevant experts from the Ministry of Aviation and relevant factories, institutes and institutes of aeronautics and astronautics, the Ministry of Weaponry, Tsinghua University, and Harbin Institute of Technology has given a high opinion on the achievements made in the research of this subject.