【摘要】：分別采用Sn-40Pb,Sn-3.5Ag和Sn-52In釬料對(duì)PZT8壓電陶瓷和銅定子彈性體進(jìn)行了釬焊試驗(yàn),對(duì)比分析了3種釬料釬焊定子的振動(dòng)性能以及釬焊壓力對(duì)振動(dòng)性能的影響.結(jié)果表明,采用Sn-52In釬料,配合松香類有機(jī)釬劑,在峰值溫度141℃,回流時(shí)間116 s,釬焊壓力38.26~114.78 k Pa內(nèi)的工藝條件下,釬焊形成定子的振動(dòng)性能最好;在電壓峰峰值80 V的激勵(lì)下,釬焊定子的振幅為2.5μm,達(dá)到了膠粘定子的振動(dòng)水平;釬焊接頭的抗剪強(qiáng)度達(dá)到6.88 MPa,超過了超聲電機(jī)定子對(duì)力學(xué)性能(≥5 MPa)應(yīng)用的要求,有望解決膠粘工藝膠接層老化的問題,從而提高超聲電機(jī)的使用壽命.
[Abstract]:The brazing tests of PZT8 piezoelectric ceramics and copper stator elastomers were carried out by using Sn-40Pb,Sn-3.5Ag and Sn-52In solders, respectively. The vibration properties of three kinds of brazing stator and the effect of brazing pressure on the vibration properties were compared and analyzed. The results show that the vibration properties of the stator formed by brazing are the best under the conditions of Sn-52In solder, rosin organic flux, peak temperature 141 鈩，

本文編號(hào)：2350256