摘要
本文以国产水雾化低合金钢粉FJSY200.30为研究对象,进行混合粉的制备和温压致密化机理研究。采用了一种粘结化处理混粉工艺,制备温压混合粉。实验表明,这种混合粉比常规干混工艺制得的混合粉,有明显的优点,可以提高粉末的流动性、填充性和热稳定性,室温压制和温压压制的压坯密度和压坯强度得到提高,特别是温压压制,更为明显。通过分析温度变化对润滑剂润滑性能的影响,探讨了温压成形提高压坯密度的原因。
Warm compaction powder was prepared by bind-treatment mixing process using water atomized low alloyed steel powder FJSY200.30.Warm compaction behavior and sinter-hardening process of the mixed powder was investigated.Result shows that the mixed powder has significant advantage compare with the powder made by commondry mixing method which has a higher powder flowability.filling ability and thermal stability.The green density by room-temperature pressing especially by warm compaction is increased and the mechanism of green density gained from warm compaction is investigated by analyzing the effect of temperature on property of lubricant.
出处
《粉末冶金工业》
CAS
北大核心
2011年第5期27-31,共5页
Powder Metallurgy Industry
关键词
温压成形
压坯强度
压坯密度
润滑剂
warm compaction
green strength
green density
lubricant
