Fe-Ni-Cu-C合金粗粉注射成形的热脱脂工艺研究  

Thermal Debinding in Injection Molding with Fe-Ni-Cu-C Alloy Coarse Powder

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：《江苏科技大学学报（自然科学版）》2007年第6期21-24,共4页Journal of Jiangsu University of Science and Technology:Natural Science Edition

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资助(XK01007)

摘　　要：对平均粒度为60μm的Fe-Ni-Cu-C合金粗粉注射成形坯进行了热脱脂,用差热分析仪测定了粘结剂各组元的DTA和TGA曲线,制定了合理有效的热脱脂工艺。结果表明:对于石蜡基多聚合物粘结剂体系,采用分步热脱脂,有利于维持坯体形状;热脱脂的升温速率对脱脂坯质量影响显著。The thermal debinding was proceeded in the injection molding by using the Fe-Ni-Cu-C alloy coarser powder with the particle size of 60 μm. The DTA （ differential thermal analysis） and the TGA （ thermogravimetric analysis） curves of the binder with its components were measured by means of a differential thermal analyzer. The reasonable thermal debinding process was established. Results show that the stepwise thermal debinding can be adopted for the PW-base polymer binder system. The effect of the temperature rise rate in the thermal debinding on the defect of the debinding parts is obvious.

关 键 词：金属注射成形 粗粉 热脱脂 工艺 

分 类 号：TF124.3[冶金工程—粉末冶金]