If the refractorywall is covered with high reflectivity coating, the heating-up time with workpieces is reduced obviously, whereas the heating-up time at empty cannot be reduced;
炉壁内表涂以高反射率涂料后，可明显缩短工件随炉升温时间，但不能减少空炉升温时间；
2
The influence of type and structure parameters of cooler, kind of lining refractory, operation factors on the temperature field in the wall of blast furnace was investigated.
讨论了冷却器形式、冷却器的结构参数、耐火材料种类以及高炉操作等因素对炉墙温度场的影响。
3
Professional purchasing each miniature bearing, thin wall bearing, stainless steel bearings, non-standard bearings and refractory type bearings.