连续铸钢和钢的热挤压这两项冶金工业新工艺在技术和经济效果上具有许多优点,近期获得迅速发展。目前国内热挤压生产所用坯料为轧坯和锻坯,坯料加工过程中金属损耗大,成本高,需较大型的锻锤和轧机设备。把连铸圆坯与热挤压结合起来的新工艺具有投资少、简化工艺、省去开坯设备、容易实行轧材多品种及节省金属等优点,符合多快好省总路线精神,因此有必要加强这方 Continuous Casting and Hot Extrusion of Steel Both of these metallurgical industry new processes have many advantages in terms of technology and economics and have gained momentum recently. At present, the domestic hot extrusion production billets used for the blank and forging billet, billet processing metal loss, high cost, larger forging hammer and mill equipment. The new process of combining continuous casting round billet and hot extrusion has the advantages of less investment, simplification of process, elimination of billeting equipment, easy implementation of multi-varieties of rolling stock and saving of metal, which is in line with the principle of " Strengthen this side