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为了提高钢锭和板坯的表面质量,苏联乌克兰特钢研究所和第聂伯特殊钢厂研制出一种含铝粉、硅钙合金、锰矿等的发热剂。发热剂中所采用的氧化剂(锰矿)和还原剂(铝粉和硅钙合金)的比例,可保证熔化时脱氧剂全部结合成高价氧化物。先形成的一层流动液填满模壁和上升金属体积间的空隙,可使钢锭尾部表面缺陷减少,从而保证钢锭表面均匀、光滑。补充试验表明,通过改变锰矿焙烧温度制度,发热剂的燃烧温度可波动于560～
In order to improve the surface quality of ingots and slabs, the Soviet Union Ukraine Special Steel Institute and Dnepr Special Steel developed a containing aluminum powder, calcium-silicon alloy, manganese ore and other heating agent. The ratio of oxidizing agent (manganese ore) and reducing agent (aluminum powder and calcium-silicon alloy) used in the heating agent can ensure that all the deoxidizing agent is combined into the high-value oxide when melting. First, a layer of fluid formed to fill the mold wall and the space between the rising metal volume, the tail surface defects can reduce the ingot, so as to ensure a uniform and smooth ingot surface. Supplementary tests show that by changing the manganese roasting temperature system, the heating temperature of the combustion agent can fluctuate at 560 ~