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《Hot Working Technology》 2010-07
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Solvent Degreasing Behavior of Copper/Tungsten Composites Prepared by MIM

LIU Jie,XIE Ming,LU Manmen,HAN Bo(Kunming Institute of Precious Metal,Kunming 650106,China)  
Taking copper / tungsten composites green parts prepared by MIM as investigation object and carrene as solvent,the solvent degreasing behavior of two kinds of copper / tungsten composites,Cu-5wt% W and Cu-15wt% W,prepared by MIM were researched.The results show that the degreasing temperature and degreasing time are external causes of solvent degreasing;the character and thickness of the parts have great effect on solvent degreasing,the complexity of the part shape almost has no effect on solvent degreasing;the irregular powder shape and more holes in green parts are favourable to solvent degreasing;at the incipient stage of degreasing,the degreasing rate is controlled by diffusion and changes linearly,after 10hdegreasing,the degreasing rate is controlled by both diffluence and diffusion.
【Fund】: 昆明市科技计划重点项目(08H130102)
【CateGory Index】: TF124.39
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