AlSn8Si2.5Pb2Cu0.8Cr0.2/鋼軸瓦帶
(東北大學(xué) 材料電磁過程研究教育部重點實驗室，
沈陽 110004)
摘 要: 采用液-固相軋制復(fù)合法生產(chǎn)AlSn8Si2.5Pb2Cu0.8Cr0.2／鋼復(fù)合板， 通過實驗結(jié)合數(shù)學(xué)模型確定其工藝參數(shù)范圍。 光學(xué)金相觀察表明其組織含有大量發(fā)達細(xì)小的枝晶， 電子探針觀察發(fā)現(xiàn)Si， Sn元素在組織內(nèi)分布均勻， 通過結(jié)合強度、 表面硬度和復(fù)合帶厚度檢測， 發(fā)現(xiàn)在澆注溫度750℃， 軋制復(fù)合速度3m/min， 輥縫1.2mm條件下， 能穩(wěn)定生產(chǎn)厚度為2mm左右的軸瓦復(fù)合帶。
關(guān)鍵字: 液-固相軋制復(fù)合法; 軸瓦帶;軋制復(fù)合速度;澆注溫度
CUI Jian-zhong
（The Key Laboratory of Ministry of Education For Electromagnetic Processing of Materials，Northeastern University, Shenyang 110004, China）
Abstract:AlSn8Si2.5Pb2Cu0.8Cr0.2/steel bearing strip is produced by the method of liquid-solid roll-bonding. Based on the experiments and mathematical model, the technical parameters are determined. By the aids of bonding strength and surface quality, the optimized parameters (roll speed: 2.964m/min, casting temperature: 750℃, roll gap: 1.2mm) are found. The metallography and EPMA pictures show that the distributions of Sn and Si are uniform and dispersion.
Key words: liquid-solid roll-bonding; bearing strip; velocity of roll-bonding; casting temperature
