-
公开(公告)号：US20090071578A1
公开(公告)日：2009-03-19
申请号：US12291118
申请日：2008-11-06
IPC分类号： C21D8/02
CPC分类号： C22C38/001 , C21D8/0226 , C21D8/0263 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/18 , C22C38/22
摘要： A method for manufacturing a high carbon hot-rolled steel sheet. The method including the steps of hot-rolling, primary cooling, secondary cooling, coiling, acid-washing and annealing. The primary cooling step is to cool the hot-rolled steel sheet down to a cooling termination temperature of 450° C. to 600° C. at a cooling rate of higher than 120° C./sec. The secondary cooling step is to apply a secondary cooling to hold the primarily cooled hot-rolled steel sheet at a temperature of 450° C. to 650° C. until coiling.
摘要翻译： 高碳热轧钢板的制造方法。 该方法包括热轧，一次冷却，二次冷却，卷取，酸洗和退火的步骤。 主冷却步骤是以高于120℃/秒的冷却速度将热轧钢板冷却至450℃至600℃的冷却终止温度。 二次冷却步骤是在450℃至650℃的温度下进行二次冷却以将主要冷却的热轧钢板保持在卷绕状态。
-
公开(公告)号：US07879163B2
公开(公告)日：2011-02-01
申请号：US12291118
申请日：2008-11-06
IPC分类号： C21D8/02
CPC分类号： C22C38/001 , C21D8/0226 , C21D8/0263 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/18 , C22C38/22
摘要： A method for manufacturing a high carbon hot-rolled steel sheet. The method including the steps of hot-rolling, primary cooling, secondary cooling, coiling, acid-washing and annealing. The primary cooling step is to cool the hot-rolled steel sheet down to a cooling termination temperature of 450° C. to 600° C. at a cooling rate of higher than 120° C./sec. The secondary cooling step is to apply a secondary cooling to hold the primarily cooled hot-rolled steel sheet at a temperature of 450° C. to 650° C. until coiling.
摘要翻译： 高碳热轧钢板的制造方法。 该方法包括热轧，一次冷却，二次冷却，卷取，酸洗和退火的步骤。 主冷却步骤是以高于120℃/秒的冷却速度将热轧钢板冷却至450℃至600℃的冷却终止温度。 二次冷却步骤是在450℃至650℃的温度下进行二次冷却以将主要冷却的热轧钢板保持在卷绕状态。
-
搜索结果
2 条记录 (耗时 0.007 秒)
