国内电渣空心锭的生产,都是采用多电极方法,存在着电极制备工艺复杂、成本高、充填系数小,生产率低等缺点。本文较详细地介绍了用热穿孔技术电渣熔铸空心锭的研究情况,其中主要包括该技术的原理、设备的设计制造、电渣熔铸的各种不同的工艺参数、空心锭的截剖结果以及经济效益的分析等,结果表明,电渣空心锭对提高材质性能和金属材料利用率有明显的效果。该技术主要适用于大口径厚壁管坯的生产制造。 Electroslag hollow ingot production, are the use of multi-electrode method, there are complex electrode preparation process, high cost, filling factor, low productivity and other shortcomings. In this paper, the research situation of electroslag casting of hollow ingot by hot perforation technology is introduced in detail, including the principle of the technology, the design and manufacture of the equipment, the different process parameters of electroslag casting, the sectional results of the hollow ingot, Economic analysis, the results show that the electroslag hollow ingot to improve the material properties and utilization of metal materials have a significant effect. The technology is mainly applied to the production of large diameter thick-walled tube.