Fe-Ni-Cu-C合金粗粉注射成型工艺参数的优化  

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

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：《金属热处理》2007年第11期77-80,共4页Heat Treatment of Metals

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：采用正交试验法研究了注射压力、注射温度、注射速度及其交互作用对注射成型坯质量的影响,评价了各参数对生坯质量影响的显著程度,优化了注射成型参数。试验结果表明,注射压力、注射温度、注射速度及注射压力与注射温度的交互作用对生坯抗弯强度影响显著,注射压力、注射温度及注射温度与注射速度的交互作用对生坯密度影响显著。注射压力增加,生坯密度和抗弯强度都增大;注射温度提高,生坯密度降低,注射温度在155～160℃之间时,生坯抗弯强度变化不大,超过160℃时抗弯强度明显降低。注射速度为60%时,生坯密度达到最大值。最佳注射成型工艺参数为:注射压力8MPa,注射温度155℃,注射速度60%。Effects of process parameters such as injection pressure,injection temperature,injection speed and their interaction,on the density and strength of the as-molded specimens were systematically studied by using orthogonal arrays design and statistical analysis method.The notability of process parameters was estimated and process parameters were optimized.The experimental results indicate that the injection pressure,temperature,speed and interaction of pressure and temperature have remarkable effects on the strength,but the pressure,temperature and interaction of the temperature and speed,have some distinguished influence on the density.The blank density and strength increase as the pressure increased.The density decreases as the temperature increased,but the strength nearly keep constant at 155～160 ℃,then decreases sharply beyond 160 ℃.The density reaches the best value when the injection speed is 60%.The optimized injection parameters are as followings：injection pressure 8 MPa,injection temperature 155 ℃ and injection speed 60%.

关 键 词：金属注射成型 正交试验 工艺参数 优化 

分 类 号：TG146.2[一般工业技术—材料科学与工程] TF124.3[金属学及工艺—金属材料]