AlSn8Si2.5Pb2Cu0.8Cr0.2/钢轴瓦带
(东北大学 材料电磁过程研究教育部重点实验室，
沈阳 110004)
摘 要: 采用液-固相轧制复合法生产AlSn8Si2.5Pb2Cu0.8Cr0.2／钢复合板， 通过实验结合数学模型确定其工艺参数范围。 光学金相观察表明其组织含有大量发达细小的枝晶， 电子探针观察发现Si， Sn元素在组织内分布均匀， 通过结合强度、 表面硬度和复合带厚度检测， 发现在浇注温度750℃， 轧制复合速度3m/min， 辊缝1.2mm条件下， 能稳定生产厚度为2mm左右的轴瓦复合带。
关键字: 液-固相轧制复合法; 轴瓦带;轧制复合速度;浇注温度
（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
