共查询到20条相似文献,搜索用时 109 毫秒
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石横特殊钢厂采用EBT+LF冶炼、水平连铸浇铸工艺生产GCr15轴承钢。实践表明,采用EBT+LF+HCC工艺可以生产出质量符合YB9-68要求的轴承钢,可实现一火成材,提高成材率,具有显著的效益。 相似文献
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不同冶炼工艺对20CrMnTiH钢淬透性的影响 总被引:2,自引:0,他引:2
运用计算机回归处理方法,对不同冶炼工艺生产的20CrMnTiH钢进行统计分析,得出淬透性J9与化学成分的回归方程式,并对比得出采用EBT+LF工艺冶炼的20CrMnTiH钢淬透性高于电弧炉单炼的20CrMnTiH钢。 相似文献
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肖九红 《金属材料与冶金工程》2000,(6):15-17
介绍了以转炉冶炼→LF炉精炼→连铸→高速线材轧机轧制,生产低碳低硅拉制钢丝用的BL1盘条的试生产工艺及拉拔试验的情况。结果表明,BL1线材完全能替代湘潭钢原平炉-模铸工艺生产的C1F线材,其化学成分合格,各项性能优良。 相似文献
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1 试验条件及目的冶炼设备为北满特钢30tEBT电弧炉与40tLF/VD精炼炉。工艺流程为:电炉熔化、氧化→偏心炉底出钢→钢包合金化→进LF炉→升温及精调成分→进VD炉→出炉、浇注。全系统的优化是根本目的,而系统内各单元的优化是服务系统优化的[1],把LF、VD看成系统中的单元,寻求合理的工艺参数,改善过程的技术经济指标,对过程作系统分析并建立数学模型。2 逐步回归分析与模型的建立LF/VD主要功能是通过吹氩、精炼渣精炼、真空等手段获得纯净钢水。钢中氧含量是影响轴承钢疲劳寿命的最重要因素[2]。… 相似文献
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结合马钢二钢轧总厂的工艺装备水平,介绍低碳易拉丝钢1008的生产操作实践;详尽分析了该钢种的冶炼、精炼、连铸、轧制工艺及质量控制水平情况。 相似文献
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通过对转炉炼钢过程化渣的理论分析,结合首钢第三炼钢厂冶炼操作,总结了转炉控制喷溅、实现快速化渣的经验,得出了炼钢化渣的最优操作方法。实践表明,采用本操作方法,可以有效提高转炉终点脱磷率,降低副原料消耗,提高钢水质量。 相似文献
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Bernhard Hoh 《钢铁研究学报(英文版)》2011,(Z1):535-540
Continuous casting has evolved as the most important production process in the steel industry.Today it counts for about 95% of the world’s steel production.Parallel to its rising significance,the process technologies have been enhanced in yield,productivity and-in particular quality of semi-finished products has been improved close to the realm of possibility.Further optimizing the product quality beyond the present status has to put the whole manufacturing route from hot metal and/or steel melting through refining to continuous casting under integrated control.Prerequisite for the production of HSLA steel grades of the highest standard are clean steel,internal soundness and defect-free slab surfaces.In this context a brief look is cast on the recent trend of process technology in casting "thick slabs" for extra-heavy plate production. 相似文献
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Effect of Carbon Properties on Melting Behavior of Mold Fluxes for Continuous Casting of Steels 总被引:1,自引:0,他引:1
Mold fluxes are synthetic slags used to coverthe liquid steel meniscus during continuous castingof steel.The flux,whichis continuously fed on thesurface of liquid pool during casting,melts first andthenflowsintothe gap between mold wall and solid-ified steel shell.It is well known that the perform-ance of the flux can greatly affect both the castingoperation and product quality.Because of its i mpor-tance,intensiveinvestigations have been performed,and considerable progress has been made[1-6].… 相似文献
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采用控制转炉过氧化、调节钢中氧含量、优选最佳工艺以数及杜绝高温挂罐等一系列质量管理措施,降低了轧后废品,使钢锭质量合格率大幅度提高,达到了提高降耗的目的。 相似文献