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

Sun Dan,Li Guangsheng,Lin Chunfang,Du Yuguo,Sun Weiquan (Shanghai Research Institute of Materials,Shanghai 200437,China)  
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.
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