论文部分内容阅读
钢锭模是冶金企业浇注钢锭用量最大的一种金属型,以每吨钢锭平均消耗40公斤钢锭模铸铁计算,在一个年产50万吨钢的冶金工厂中,每年钢锭模的铸跌消耗量即需要2万吨。钢锭模在铸铁需用量方面仅次于机床制造,居第二位。钢锭模外形简单,重量由几十公斤至百吨以上,质量要求都很严格,在一般铸件表面所常见的气孔、粘砂、裂纹冷隔、表面粗糙等缺陷,在钢锭模内壁是绝对不许有的,钢锭模质量更重要的指标是每个钢锭模的使用寿命(浇注钢锭的次数),钢锭模受1400℃以上高温钢水的热击、侵触,剧热,剧冷,形成内应力对组织的破坏,因此改善这种适应性,减少钢锭模内壁
Ingot mold is a metallurgical enterprise pouring the largest amount of ingot a metal type, with an average consumption of 40 kg per ton of steel ingot cast iron calculation, in an annual output of 500,000 tons of steel metallurgical plant, the annual consumption of steel ingot mold consumption that is Need 20,000 tons. The steel ingot mold is second only to the machine tool in terms of the amount of iron needed. Simple appearance of the ingot mold weight from tens of kilograms to 100 tons or more, the quality requirements are very strict, common in the general casting surface porosity, sticky sand, crack cold, rough surface and other defects in the ingot mold wall is absolutely not allowed , The more important index of ingot mold quality is the service life of each ingot mold (the number of ingot ingots). The ingot mold is subjected to thermal shock, intrusion, intense heat and rapid cooling of molten steel above 1400 ℃, Damage, so to improve this adaptability, reduce ingot mold wall