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研制了适合铅合金板连续铸轧使用的复合型铸嘴.研究了铸轧过程中温度与轧制速度等工艺参数对轧制过程的影响,试验表明最佳铸轧温度范围为355～370℃,最佳轧制速度范围为1.1～1.2m/min.对连续铸轧法生产的铅合金板带与铸造+轧制法生产的铅合金板带进行对比测试.结果表明:二者的密度、电导率大小相当;晶粒尺寸大小相当,合金元素均成弥散分布;在力学性能方面,连续铸轧法生产的铅合金板带略低于铸造+轧制法生产的,这可能是由于合金元素Ca的缺少所致.用水平式双辊连续铸轧法成功轧制出基本满足商业使用要求的铅合金板带.
The composite casting nozzle suitable for the continuous casting and rolling of lead alloy plate was developed.The influence of the process parameters such as temperature and rolling speed on the rolling process was studied.The results show that the optimum casting temperature range is 355 ~ 370 ℃ , And the optimum rolling speed range is 1.1 ~ 1.2m / min.The test of lead alloy strip produced by continuous casting method and lead alloy strip produced by casting + rolling method is carried out.The results show that the density, The conductivity of the size of the same size of the grain size, the alloy elements are diffuse distribution; in mechanical properties, continuous casting production of lead alloy strip slightly lower than the casting + rolling production, which may be due to alloying elements Ca. The horizontal double-roll continuous casting method successfully rolled out the lead alloy strip basically meeting the commercial requirements.