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Abstract：
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A double-strike direct electric drive screw press is a new machine used in particle and dispersed material forming. It can realize two strikes in one stroke with the first being light and the second heavy. In the light strike, the air among particles thrusts out easily. In the heavy strike, the product will have good compactness. In this paper, the strike, energy and modal characteristics of this machines are studied and a part of the experiment results from a 1600kN double|strike direct electric drive screw press is introduced.
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Funds：
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国家自然科学基金资助项目 (597750 0 1 );;
山东省高技术产业发展项目 (鲁计科技字 [1 999] 51 2 )
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AuthorIntro：
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Reference：
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1 李培武,杨文成塑性成型设备北京:机械工业出版社,1995
2 李培武螺旋压力机锻击状态下的力能关系山东工学院学报,图7 已生产的釉面砖坯1978(1):1～13
3 LiPeiwu,HongGuodongOntheStiffnessofScrewPressesIntJ MachToolsManufact,1997,37(1):93～100
4 LiPeiwu,etal.StrikeCharacteristicsofDouble-strikeScrewPressesProc of6thICTP .Nuremberg,Germany.1999:231～234
5 李山泉双击式螺旋压力机运动分析山东大学硕士论文1997
6 李德葆振动模态分析及其应用北京:宇航出版社1989
7 LiPeiwu,TangWeixiaoModalAnalysisofaDoubleStrikeScrewPressProc of18thIMAC SanAntonio,Texas,U S A ,2000:1858～1861
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