low iron round pipe brick

Before using the low iron round pipe brick, the inspection shall be carried out, including: the flatness and smoothness of the inner wall of the mold cavity, whether the bottom plane of the mold is bruised or stuck with steel, if found, it shall be polished in time, and the flow steel brick shall be used to cause the steel penetration accident of the bottom of the mold. Each batch of new mould must be baked to keep the mould temperature between 100 ℃ ~ ℃, so as to improve the surface quality of ingot. The inner wall of mould cavity should be scoured to prevent non-metallic inclusions from rushing into ingot and affecting the quality.