SWRH67A、SWRH72A盘条的试制

介绍SWRH6 7A、SWRH72A盘条的试制过程 :采用氧气顶吹转炉和钢包底吹氩搅拌工艺炼钢 ,用R5m连铸机轧制 110mm× 110mm方坯 ,经高速线材轧机控制轧制工艺生产出盘条。指出拉碳法、保护浇注、控冷等措施的应用可有效保证产品质量 ,使金相组织、晶粒度、脱碳层深度、非金属夹杂物级别等指标符合日本及相应标准要求。产品经用户使用 ,不经热处理可一次由 5 .5mm拉拔至 1.8mm ,各项性能满足使用要求

Trial Production of SWRH67A、SWRH72A Steel Wire Rod

To introduce the trial production process of SWRH67A?SWRH72A wire rod:iron is smelt in top blowing Oxygen revolving furnace,treated in the laddle with Ar bottom blowing and stirring,then continuously cast into 110?mm×110?mm billets with a R5?m caster,SWRH67A?SWRH72A wire rod is rolled with high speed mill.The processes of catching carbon method,protective casting and controlled cooling can quarantee the quality of wire rod,targets such as metallographic structures,decarburized depth,grain size and non metallic inclusions conform to Japanese and the relative standards.The products used by the customers can be drawn to 1.8?mm without heat treatment.The properties can satisfy the needs of use.