DC53钢连轧棒材退火工艺研究  

Research on annealing process of DC53 steel continuous rolling bars

作　　者：张璨[1] 谢珍勇 唐佳丽 任金桥 邓建英 Zhang Can;Xie Zhenyong;Tang Jiali;Ren Jinqiao;Deng Jianying(Jiangyou Changcheng Special Steel Co.,Ltd.,Pangang Group,Jiangyou 621701,Sichuan,China;Pangang Group Xichang Steel Vanadium Co.,Ltd.,Xichang 615000,Sichuan,China)

机构地区：[1]攀钢集团江油长城特殊钢有限公司,四川江油621701 [2]攀钢集团西昌钢钒有限公司,四川西昌615000

出　　处：《特钢技术》2024年第1期29-32,共4页Special Steel Technology

摘　　要：为了满足DC53材料对加工硬度的特殊需求(硬度≤220 HB),对冷作模具钢DC53热轧材进行了不同退火工艺的试验。结果表明DC53的退火硬度与球化退火的工艺有很大关系,球化退火加热温度850℃、等温温度750℃为最佳退火工艺。在生产中应用该最佳退火工艺后,钢材的硬度均匀,平均硬度HB210左右,金相组织合格,满足用户标准要求。In order to meet the special requirement of processing hardness for DC53 material(hardness≤220 HB),different annealing processes were tested on DC53 hot-rolled cold work die steel.The results indicate that the annealing hardness of DC53 is closely related to the process of spheroidization annealing.The optimal annealing process is the heat-ing temperature of 850℃and the isothermal temperature of 750℃for spheroidization annealing.After applying the op-timal annealing process in production,the hardness of the steel is uniform,with an average hardness of around HB210,and the metallographic structure is qualified,meeting the user's standard requirements.

关 键 词：DC53 热轧材 等温退火 硬度均匀性 

分 类 号：TG142.1[一般工业技术—材料科学与工程]