我厂平炉的炉龄较长,每届中修周期为4～5个月。为了保证炼钢生产的正常进行,要求设备配备件的使用寿命必须大大超过平炉检修周期。1978年以前,我们对平炉换向阀滑动轴承选用2号钙基脂,效果不理想。1978年以后,选用3号复合钙基脂,但还不够理想。1981年开 I furnace furnace flat stove longer, each repair cycle of 4 to 5 months. In order to ensure the normal production of steelmaking, equipment life expectancy must be equipped with parts over the open hearth maintenance cycle. Before 1978, we used 2 calcium base grease for the plain furnace valve slide bearing, the result was not satisfactory. After 1978, the choice of No. 3 calcium complex fat, but not ideal. Opened in 1981