一、存在问题我厂用于生产９．５mm电工圆铝杆的连铸连轧机组，自１９８６年投产至今，经常出现故障。存在问题如下。１．由于无炉外精炼设备，从混合炉流出的未经处理的铝液经流槽直接进入连铸机，导致产出的圆铝杆内部杂质多、质量差。２．由于连铸机铸出的坯料直接送入连 First, the existing problems I plant for the production of  9.5mm round aluminum continuous casting and rolling mill units, put into operation since 1986, often failure. The problems are as follows. 1. Because there is no furnace outside the refining equipment, outflow from the furnace unprocessed liquid aluminum directly into the caster by the flow tank, resulting in the production of round aluminum rod internal impurities and poor quality. 2. Due to continuous casting cast billet directly into the company