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叙述了重钢公司几个高碳铬铁电炉使用全印度粉矿在冶炼过程中炉衬的损坏情况及其原因,提出了炉衬维护中应注意的几个方面。 相似文献
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Metallurgical and Materials Transactions A - The effect of cerium addition on the rolling contact fatigue (RCF) life of a high-carbon chromium bearing steel was studied using laboratory... 相似文献
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简述了采用3t中频感应炉进行固态高碳铬铁重熔、液态高碳铬铁保温的工业性试验,并就上海申佳公司今后采用中频感应炉对液态高碳铬铁保温、并兼顾少量固态高碳铬铁重熔的工艺提出了操作意见,同时就炉龄问题作了简要分析。 相似文献
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针对石矿回转窑自生产以来窑内衬使用寿命较短的问题,根据实际情况,详细地分析了制约窑内衬使用寿命的种种因素.通过采取更换耐火材料、严把原料质量关、调整回转窑风气配比等措施,使回转窑窑内衬的使用寿命大为提高,提高了经济效益,达到了预期目的. 相似文献
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《钢铁冶炼》2013,40(6):521-528
AbstractConverter lining life is an important technical and economic concern of the steelmaking process. An increase in lining life decreases refractory consumption and reduces steelmaking costs. Increased availability of furnaces increases production rates and steel yield. Extended lining life was achieved by utilising the slag as a consumable refractory by splashing it over the lining. Slag splashing is a simple and effective technique followed worldwide to increase the converter life. This paper highlights the online study on various operating parameters and slag characteristics for consistent slag splashing in a 130 t converter. Parameters such as lance height, blow pattern, gas flowrate, bottom purging flowrates, tapping temperature, combination of gunniting with splashing, slag height and slag chemistry, were investigated. An optimised slag has been developed which served effectively to balance the lining erosion during blowing and maintain a uniform thickness throughout the campaign. Some innovative practices and design changes are also discussed. The developed slag regime and optimised parameters have helped in increasing the converter life to an international benchmark. JSW Steel has achieved the converter lining life of 13 771 heats, which is the highest ever recorded in India. 相似文献
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通过微碳铬铁电炉炉衬的解剖和取样检测,论述了冶炼过程中炉衬的侵蚀机理及影响炉衬寿命的主要因素,并指出了延长炉衬寿命的几点简要看法。 相似文献
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在100 t电炉-连铸和相应的加热-轧制生产线上开发了小方坯连铸高碳铬轴承钢工艺技术,提高了轴承钢的清洁度,并使连铸轴承钢的接触疲劳寿命和轴承疲劳寿命分别达到和超过了模铸轴承钢.已生产了30万t连铸轴承钢,取得了显著的经济效益和社会效益. 相似文献
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我国大型高炉长寿技术发展现状 总被引:5,自引:0,他引:5
论述了我国大型高炉长寿技术的发展现状。在大型高炉设计中,通过优化炉型、采用合理炉缸内衬结构、铜冷却壁、软水密闭循环冷却系统、薄壁内衬等技术为高炉长寿创造条件。通过自动化检测与控制、炉体维护等技术使高炉寿命达到15年以上。对高炉炉缸内衬结构、铜冷却壁、软水密闭循环冷却系统、薄壁内衬的应用进行了评述,对我国大型高炉长寿技术的发展提出了建议。 相似文献