AgSn合金压坯氧化烧结一体化工艺研究

Research On The Oxide Sintered Integration Of Ag - Sn Alloy Billet

摘要:

本文就AgSn合金压坯氧化烧结一体化工艺进行探究。通过XRD和SEM等手段对制得的AgSn合金粉末进行表征,系统考察了氧化温度、氧化时间、成型压力、烧结温度和烧结时间对AgSn合金压坯氧化率、相对密度和抗弯强度的影响。确定了最佳氧化温度和时间为700℃×2h,最佳烧结温度和时间为900℃×3h ,最佳压坯压力为250MPa。结果表明：AgSn合金压坯氧化烧结一体化工艺不但能够简化传统粉末冶金工艺流程,提高生产效率,并且能够提高粉末的烧结活性。

Abstract:

In this paper, the research on the Oxide Sintered Integration of AgSn Alloy Billet .X-ray diffraction analysis (XRD) and scanning electron microscope (SEM) observation were carried out to characterize the as prepared AgSn powder. System inspected the oxidation temperature, oxidation time, forming pressure and sintering temperature and sintering time on the AgSn alloy billet oxidation rate, the influence of relative density and bending strength. To determine the best oxidation temperature and time are 700 ℃ for 2h, the best sintering temperature and time are 900℃ for 3h, and best compacting pressure to 250 MPa. The results showed that: AgSn alloy blank oxide sintered sintering process integration can not only simplify traditional powder metallurgy process, improve the production efficiency, and can improve the powder sintering activity.