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为了防止钢水受空气中氧气的氧化并减少热损失,普通用途钢广泛采用保护渣浇铸,这类渣料是以热电厂灰渣或者添加含碳材料的珍珠岩为主配制成的。在亚申斯基冶金工厂,普通用途的碳素钢厚板是用钢锭直接在2850轧机上轧制而成的,因此,对钢锭表面质量提出了更高的要求。裸露钢水面浇铸的低碳钢钢锭,由于热裂纹而增加了废品率。把浇注速度降至0.2米
In order to prevent the molten steel from being oxidized by the oxygen in the air and to reduce the heat loss, the general-purpose steel is widely used for the mold powder casting. The slag is mainly made of the pyrocondensation of the thermal power plant or the perlite added with the carbon material. At Ashszkinis Metallurgical Plant, a common-use carbon steel plate is rolled directly on a 2850 mill with a steel ingot, thus placing a higher demand on the ingot surface quality. Bare molten steel cast mild steel ingot, due to hot cracks and increase the rejection rate. The pouring speed down to 0.2 meters