温粉高速压制装置及其成形试验研究  

Investigation on equipment and forming tests of warm powder high velocity compaction

作　　者：陈进[1] 肖志瑜[1] 唐翠勇[1] 李超杰[1] 张文[1] 

机构地区：[1]华南理工大学机械与汽车工程学院,广州510640

出　　处：《粉末冶金材料科学与工程》2011年第4期604-609,共6页Materials Science and Engineering of Powder Metallurgy

基　　金：国家自然科学基金资助项目(50874051);广东省自然科学基金重点资助项目(06105411);教育部新世纪优秀人才资助项目(NCET-05-0739)

摘　　要：为发展粉末冶金零件高致密化成形技术,提出1种高速压制和温粉压相结合的温粉高速压制(WHVC)成形技术。自行设计并制造了1套利用重力势能驱动的温粉高速压制成形装置,并对温粉高速压制成形实验进行探讨。结果显示:运用该装置对316L不锈钢粉、铁粉、铜粉和铝粉进行温粉高速压制成形实验,生坯密度分别可达到7.47、7.63、8.61和2.70 g/cm3,远高于传统高速压制的密度,充分体现出温粉高速压制比传统高速压制更有优势。研发的实验装置能很好地满足温粉高速压制成形的技术要求,并对温粉高速压制的成形机理进行了探讨。In order to develop high density powder metallurgy forming technology,a new concept in powder forming technology that combining high velocity compaction with warm compaction was presented in the present paper.A warm powder high velocity compaction（simplified as WHVC） forming equipment which adopts gravitational potential energy was designed and developed.By means of such device,a preliminary study on WHVC was carried out.The results show that the average green densities of the 316 stainless powder,the pure iron powder,the copper powder and the aluminium powder are 7.47,7.63,8.61 and 2.70 g/cm3,respectively.Their densities are much higher than those prepared by conventional high velocity compaction.This result demonstrates that the newly designed equipment can meet the demand of WHVC and the new forming method is superior to the conventional high velocity compaction.The formation mechanism of the WHVC was also discussed.

关 键 词：高速压制 温粉高速压制 粉末冶金 生坯密度 

分 类 号：TF124[冶金工程—粉末冶金]