Fe-Ni-Cu-C合金粗粉注射成形喂料的流变行为  

Rheologic behavior of feed of Fe-Ni-Cu-C alloy coarse powder injection molding

作　　者：乔斌[1] 尚峰[2] 李化强[1] 邹家生[2] 

机构地区：[1]淮海工学院机械工程系,江苏连云港222005 [2]江苏科技大学材料科学与工程学院,江苏镇江212003

出　　处：《辽宁工程技术大学学报（自然科学版）》2007年第5期757-760,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：江苏省教育厅自然科学基金资助项目(06KJD460016);淮海工学院重点学科建设项目资助(XK01007)

摘　　要：制备了平均粒度为60μm的Fe-Ni-Cu-C合金粗粉注射成形喂料,研究了剪切速率、温度、粉末和粘结剂比例对喂料流变行为的影响,应用毛细管粘度计测量了三种喂料在不同温度下的粘度值,比较了三种不同成分喂料的应变敏感性因子的大小。结果表明:粉末装载量为59%、粘结剂成分为65%PW+30%LDPE+5%SA的喂料应变敏感性因子较小,较适合Fe-Ni-Cu-C合金粗粉的注射成形。Injection molding feed of Fe-Ni-Cu-C alloy coarse powder with particle size of 60um was prepared, effect of rate of shear, temperature and proportion of powder and binder to rheological behavior of feed was studied, viscosity number of three kinds of feed in different temperature was measured by capillary viscosimeter, strain sensitivity factor three kinds of feed with different component were compared. Results indicate that strain sensitivity factor of the feed, whose powder load is 59 % and binder＇s component is 65 %PW＋30 %LDPE＋5 %SA is less, This kind of feed is right for Fe-Ni-Cu-C alloy coarse powder injection molding.

关 键 词：金属注射成形 喂料 流变学 粘度 

分 类 号：TF124.3[冶金工程—粉末冶金]