炼镁还原罐材料高温蠕变性能试验研究
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摘要
以外热式硅热法炼镁用核心装备φ339 mm×33 mm×2700 mm还原罐为研究对象,分析了炼镁还原罐失稳破坏的起因。研究了还原罐常用的ZG35Cr26Ni8NRE耐热钢在1200℃、不同应力作用下的蠕变性能,并结合还原罐的两种支承方式分析了蠕变性能。结果表明:增加支承点,可有效延长还原罐的使用寿命。
Taking φ339 mm×33 mm×2700 mm reduction pot which was the core equipment in silicothermic process for magnesium production as research object, the reasons for the unstable failure of reduction pot for magnesium production were analyzed. The creep properties of the heat-resistant steel ZG35 Cr26 Ni8 NRE used in the reduction pot were studied under different stresses at 1200 ℃. The creep behavior was investigated by considering two support structures of the reduction pot.The results show that increasing support points can effectively improve the service life of the reduction pot.
Taking φ339 mm×33 mm×2700 mm reduction pot which was the core equipment in silicothermic process for magnesium production as research object, the reasons for the unstable failure of reduction pot for magnesium production were analyzed. The creep properties of the heat-resistant steel ZG35 Cr26 Ni8 NRE used in the reduction pot were studied under different stresses at 1200 ℃. The creep behavior was investigated by considering two support structures of the reduction pot.The results show that increasing support points can effectively improve the service life of the reduction pot.
引文
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[4]董春明.我国镁工业取得积极进展[N].中国有色金属报,2013-06-20(008).
[5]席欢.我国镁工业标准化大有可为[J].中国有色金属,2011(24):34-35.
[6]徐日瑶.硅热法炼镁生产工艺[M].长沙:中南大学出版社,2003:374.
[7]李德臣.制镁还原罐的研制[J].铸造技术,2002(2):124-128.
[8]朱家琛,李德臣.炼镁与真空蒸馏(还原)罐生产技术的发展[J].铸造设备研究,2006(5):69-93.
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[10]董鹏敏,管争荣.用于镁还原罐的新型耐热合金及制作工艺[J].热加工工艺,2013,42(11):63-65.
[11]孙玉福.炼镁还原罐材质ZG35Cr26Ni8NRE的研制[J].热加工工艺,2002,31(3):41-42.
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[14]王卫永,闫守海.高强度Q460钢高温蠕变性能[J].同济大学学报:自然科学版,2016(6):830-837.