宝钢一炼钢浇铸跨行车作业率计算董金刚（宝钢分公司制造管理部，上海201900）摘要：针对一炼钢三座转炉对应三台连铸机加模铸及品种钢增加的生产状况，剖析了一跨行车的运行作业，分析了钢水的精炼方式和流向分布，在此基础上计算了一跨行车的日均作业率和全连铸时的作业率，发现全连铸作业时一跨行车将成为一炼钢的物流瓶颈，此时需要从生产组织、炼钢调度和行车的运行指挥等方面采取措施。关键词：行车；作业率；计算；连铸CraneAvailabilityCalculationofCastingSpaninBaosteelNo.1SteelmakingPlantDONGJin-gang（ManufacturingManagementDepartmentofBaosteelCorporation，Shanghai201900，China）Abstract:Inallusiontotheproductionconditionofthreeconvertersmatchingwiththreecontinuouscasterplusingotandhighqualitysteels’addition,theoperationworkofNO.1span’scraneisanalyzed,thedistributionofmoltensteels’refiningmodeandstreamingdirecitonisconstrued,basedonthem,crane’saverageavailabilityandsequencecastingavailabilityinNO.1spanarecalculated,ithasbeenfoundedthattheNO.1span’scraneisthechokepointofNO.1steelmakingplantwhensequencecasting..