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提高粉末冶金成型模芯寿命研究 该成果是针对生产粉末冶金零件的成型模具寿命较低,一般典型的GCr15制的成型模芯寿命仅可压制1000件零件即失效。经研究筛选出一种比GCr15更为合适的芯棒材料,该新型芯棒寿命为压制6000～10000件产品,比原有芯棒使用寿命提高5～9倍。可在所有生产铁基、铜基等零件的粉末冶金行业中推广使用。 低温离子稀土多元共渗 离子氮化和离子软氮化工艺是两种量大面广的化学热处理工艺。但在不同程度上还存在渗速慢,处理时间长等问题。该成果克服了上
Improve powder metallurgy mold core life research The results for the production of powder metallurgy parts molding die life is low, the typical typical GCr15 molding core life can only suppress the 1000 parts that failure. The research has screened out a more suitable core material than GCr15 material, the new mandrel life is to suppress the 6000 ~ 10000 products, than the original mandrel life increased by 5 to 9 times. It can be used in all the powder metallurgy industries that produce iron base, copper base and other parts. Low temperature ion rare earth multivariate common infiltration ion nitriding and ion nitrocarburizing process is a large amount of large amount of chemical heat treatment process. But to some extent, there are still problems such as slow osmosis, long treatment time and so on. The result was overcome