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1989年4月8～19日,机械电子工业部第一装备司组织并由应琼雪高级工程师带领上海汽轮机厂、第二设计院、上海发电设备成套设计研究所和北京机电所等四个单位,对无锡叶片厂、航空部148厂和德阳第二重机厂的国产“869”叶片攻关后进行试锻的产品质量进行检查。通过这次攻关检查一致认为:三家制造厂锻造的质量如叶片成形、内背弧公差和理化性能等项目,能符合从美国西屋公司引进技术条件(美国是采用精锻,无打磨过程,我国则采用半精锻,故需经过人工抛磨),可以进行批量生产。
From April 8-19, 1989, the First Equipment Division of the Ministry of Machinery and Electronic Industry organized and led by Senior Engineer Ying Qiongxue to Shanghai Steam Turbine Plant, No. 2 Design Institute, Shanghai Power Generation Equipment Design Institute and Beijing Electromechanical Institute , Inspecting the quality of the products for trial forging made by the domestic “869” blades of Wuxi Leaf Factory, 148 Ministry of Aviation and No. 2 Heavy Machinery Factory of Deyang. Through this research examinations agreed that: the quality of forging three manufacturers such as blade forming, back-arc tolerance and physical and chemical properties of projects that meet the United States Westinghouse introduced the technical conditions (the United States is the use of precision forging, no grinding process, our Using semi-precision forging, it needs to be manual polishing), can be mass-produced.