【作者】 胡源申； 袁晓敏； 王彪； 王荣军； 黄达文； 赵志群； 梁晓乾； 胡夏雨；

【Author】 Hu Yuanshen Yuan Xiaomin Wang Biao Wang Rongjun(Anhui University of Technology)Huang Dawen Zhao Zhiqun Liang Xiaoqian Hu Xiayu (Maanshan Iron and Steel Co. , Ltd. )

【机构】 安徽工业大学； 马鞍山钢铁股份公司；

【摘要】 为消除高炉冷却壁铸造内应力对壁体工作的破坏性影响,首创性提出了利用高炉烘炉过程来实现既烘干水分保护耐材,同时又消除内应力的新思路。采用马钢1号高炉第5代炉役铸钢冷却壁同制作工艺同材质同批浇铸的实验冷却壁,使用8种处理工艺,机械力学性能及X射线应力测试、金相微观组织分析等方法,在实验室进行了系列热态模拟实验。取得的优化工艺条件在1号高炉烘炉中进行了工业应用。结果表明,新烘炉工艺可使ZG冷却壁内应力由出厂铸态的212N/mm2消除到5.8N/mm2有效消除率达到97%以上,同时壁体的机械力学性能也得到明显提高。更多还原

【Abstract】 To eliminate the destructive effect of the casting stress of BF cooling stave on the functioning of the stave body , this article creates a new train of thought of both removing the moisture thus protecting the brick and eliminating the casting stress through BF drying process. A series of hot simulation experiments were performed in the laboratory on an experimental cooling stave which was of the same batch, same materials and same producing process as the 5th generation of BF1 in Magang. The experiments also involved 8 different processes tests of mechanic properties, tests of X-ray casting stress and analysis of metallography microstructure. An industrial application of the resultant improved processing conditions has been made in the drying process of BF1. The results show that by using the new drying process the casting strss of ZG cooling stave can be reduced from its original 212N/ mm2 to 5. 8N/mm2, with the effective eliminating rate reaching up to over 97% and the mechanic properties of the stave body greatly improved.更多还原