超细硬质合金棒料挤压成形剂预脱除工艺研究  

Research on pre-debinding process of binders for ultrafine cemented carbide bar extrusion molding

作　　者：孙丹[1] 李广生[1] 林春芳[1] 杜玉国[1] 孙卫权[1] 

机构地区：[1]上海材料研究所,上海200437

出　　处：《粉末冶金技术》2010年第4期262-265,共4页Powder Metallurgy Technology

基　　金：上海市科学技术委员会国际合作项目(05DZ07025)

摘　　要：针对超细硬质合金棒料挤压工艺的三组元成形剂,探索了溶剂脱脂工艺条件,确定了合理的脱脂时间,分析了棒坯产生裂纹的原因及对策,并采用退火处理和溶剂脱脂相结合的预脱除工艺,有效降低了棒坯产生裂纹的危险,达到了良好的成形剂预脱除效果。In view of the three-components binders for ultrafine cemented carbide bar extrusion molding,the solvent debinding process, the reasonable debinding time,and the cracking of the bar were studied.Based on the result of analysis,the annealing process before solvent debinding was designed.The process could reduce cracking in bar effectively,and achieve good binder pre-drebinding results.

关 键 词：超细硬质合金棒料 挤压成形 成形剂 溶剂脱脂 退火 

分 类 号：TF125.3[冶金工程—粉末冶金]