【摘要】 广州南方钢厂20吨电炉适应炉料结构变化，改进炉体砌筑方法．炉龄从67次提高到84次，已取得经济效益31．24万元，节省换炉时间31．84h，可多产413吨钢。更多还原

【Abstract】 By improving the building technique for a 20t electric furnace in Guangzhou NanfangSteel Plant to suit the variability of furnace charges, the service life of the furnace is extendcd from 67 to84 heats, an economic profit of 312. 4 thousand RMB gained, a saving in furnace loading time of 31. 84hrealized, and an extra steel output of 413 tons obtained.更多还原