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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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关于洁净钢的若干基本问题
, PP. 257-269
Keywords: 洁净钢,洁净度,总氧量,夹杂物形态控制,超低硫钢,超低磷钢
Abstract:
洁净钢是针对客户提出的质量要求,钢厂不断改进工艺、装备后,逐步提高洁净度的各类钢.介绍了典型钢种的洁净度要求及近半个世纪来商用钢中杂质能达到的最低水平.钢中总氧量对钢的洁净度至关重要,列举了国内外主要钢厂精炼、凝固过程中钢中总氧量的变化及降低总氧量的相关理论.减少钢中夹杂物数量及控制其形态也是洁净钢的重要任务,讨论了脱氧产物、脱氧剂再氧化及顶渣与耐火材料成分的影响,对430系不锈钢中夹杂物控制及精炼时最佳搅拌强度作了介绍,简述了钙处理使铝镇静钢夹杂物转形的基础理论.对超低磷、超低硫钢生产的冶金原理作了重点阐述,介绍了抗氢致开裂(HIC)的管线钢中超低硫和硫化物的形态控制.对钢中其它杂质元素去除的可能途径也进行了讨论.
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