试验研究表明,在适当的温度下,在不改变阴极碳块的原始结构的条件下,预热阴极碳块和金属棒可减少接触压降。通过改变碳块开槽的几何形状和降低生铁的浇注温度,可减轻阴极碳块上产生的翼部裂纹(以下简称翼裂)。如果使阴极碳块在预热和冷却过程中的热梯度保持在一个非常小的范围内,可减轻角部裂纹 Experimental studies have shown that preheating the cathode carbon block and the metal rod can reduce the contact pressure drop at an appropriate temperature without changing the original structure of the cathode carbon block. By changing the geometry of the grooves and reducing the pouring temperature of the pig iron, wing cracks (hereinafter referred to as wing cracks) produced on the cathode carbon block can be alleviated. If the cathode carbon block in the warm-up and cooling during the thermal gradient is maintained in a very small range, can reduce the corner crack