Fe-Ni-Cu-C合金粗粉的注射成形工艺  

Process of Fe-Ni-Cu-C Alloy Coarse Powder by Injection Molding

作　　者：乔斌[1] 尚峰[2] 李化强[1] 

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：《航空材料学报》2007年第5期45-48,共4页Journal of Aeronautical Materials

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

摘　　要：对平均粒度为60μm的Fe-Ni-Cu-C合金粗粉进行了注射成形。采用正交试验法,以生坯三点抗弯强度和生坯密度作为依据,研究了注射参数对生坯质量的影响,得到了理想的脱脂和烧结工艺。结果表明:在1225℃,H2和N2比为1∶3时得到的烧结件具有最好的力学性能,其抗拉强度为360MPa,屈服强度为171MPa,硬度为54HRB。Fe-Ni-Cu-C mixed powder by injection molding using coarser powder with particle size of 60um was studied. The effect of injection parameters to the quality of green was studied by orthogonal arrays design and statistical analysis method according to the density and strength of the green part. The right debinding and sintering processes were obtained. Results indicated that the sintered part is provided with the best mechanical property when the proportion of H2 and N2 is 1 ： 3 and the sintering temperature is 1225℃ , at which, the tensile strength is 360MPa, yield strength is 171MPa and hardness is 54HRB.

关 键 词：金属注射成形 粗粉 脱脂 烧结 工艺 

分 类 号：TF124.3[冶金工程—粉末冶金]