共查询到18条相似文献,搜索用时 86 毫秒
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宝钢连铸中间包热状态测试与分析 总被引:1,自引:0,他引:1
连铸中间包内钢水温度是炼钢生产过程的重要工艺参数之一,影响该参数的因素很多,通过对宝钢炼钢部60t中间包的包衬热状态的测试,分析了包衬蓄热状况对中间包钢水温度的影响。 相似文献
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连铸中间包内钢水温度是炼钢生产过程的重要工艺参数之一,通过对宝钢炼钢部60t中间包钢水温度的测试,得出了中间包钢水温度变化规律,并利用回归设计建立起中间包钢水温度数学模型。 相似文献
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为了研究包衬侵蚀对钢水温降的影响规律,通过ANSYS有限元软件以及ParaMesh网格随移技术建立了考虑包衬侵蚀的钢包传热计算模型,研究并分析了包衬侵蚀对包衬及钢水温度的影响规律。结果表明,包衬侵蚀对包衬温度影响较大,在相邻两个修包周期内,包衬侵蚀造成渣线和包壁的包衬内部(工作层与永久层交界处)温差为14~114 K;包衬侵蚀导致包壳外表面温度升高,包壳向外散热增加,与此同时,包衬受侵蚀变薄,蓄热减少,两者同时作用导致包衬侵蚀对钢水温降影响不大,最高不超过1 K,在实际生产中可以适当地忽略钢包侵蚀对钢水温降的影响。 相似文献
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介绍了转炉炼钢开放式钢包在周转时进行的全程加盖系统改造,使得钢水浇注过程温降减少,钢包在浇注结束至再次受钢时,包衬温度仍可保持在较高温度以上,转炉出钢温度降低10℃以上,可大大降低工序成本及工序能耗. 相似文献
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袁庆 《现代交通与冶金材料》2021,49(2):45-47
介绍了转炉炼钢开放式钢包在周转时进行的全程加盖系统改造,使得钢水浇注过程温降减少,钢包在浇注结束至再次受钢时,包衬温度仍可保持在较高温度以上,转炉出钢温度降低10℃以上,可大大降低工序成本及工序能耗. 相似文献
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《钢铁冶炼》2013,40(5):319-325
AbstractInteractions between the molten steel and the refractory linings are of fundamental importance for the steelmaking industry. During the casting process, the steel cleanliness can be made worse because of the reoxidation of the molten steel in contact with the atmosphere and/or other sources of oxygen (refractories, top slag, etc.). In the industrial trial periods, four tundish refractory linings (preformed boards, two kinds of gunning materials and dry vibrating material, all MgO based refractories) were used in order to evaluate the interactions between the refractories and the molten steel. Owing to the small dimension of the tundish (5 ton) used in the continuous casting at Villares Metals SA, after casting, the chilled steel was cut in order to show, in a single section, the stopper, submerged entry nozzle, MgO ramming and the working refractory lining. Cross-sections of samples from the steel/refractory interface were investigated by electron probe microanalysis (EPMA). Four major aspects were observed at the steel/refractory interface: steel infiltration into the tundish refractory lining, mainly in the gunning materials; a steel oxidised layer formed at the steel/refractory lining interface; formation of a spinel layer between steel and tundish working refractory lining; and many particles were found in the steel phase, near to the steel/refractory interface, being a potential source of non-metallic inclusions. 相似文献
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建立了钢水在中间包内温降的数学模型,这不仅可以计算钢水在整个浇注过程中温降规律,为控制浇注提供依据,而且也可以计算中间包衬的温度场,为中间包的设计提供参考。 相似文献
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