镁合金薄板连续铸轧技术研究  

Technology research on magnesium alloy sheets in horizontal continuous casting process

作　　者：邢预恩[1] 张根保[2] 要二仓[3] 

机构地区：[1]内蒙古科技大学机械学院,内蒙古包头014010 [2]重庆大学机械学院,重庆400030 [3]核工业208大队,内蒙古包头014010

出　　处：《锻压技术》2012年第2期29-31,37,共4页Forging & Stamping Technology

摘　　要：优质超薄的镁合金宽幅薄板市场需求巨大,但镁合金的室温塑性加工能力较差,水平连铸生产的镁合金薄板存在缺陷。本文通过对AZ31镁合金薄板连续铸轧技术研究,得出水平连铸后二次冷却是非常有效的控制晶粒尺寸的方法,改善了连铸镁板质量。轧前经预热处理和多道次轧制,可以使晶粒形成动态再结晶,使晶粒细化,是取得良好薄板的先决条件。经过连续铸轧可以得到优质超薄超宽的镁合金薄板带材。Ultra-thin, ultra-wide and high quality magnesium alloy sheets have a great market demand. However, mag- nesium alloy posseses poor plastic formability at room temperature, magnesium alloy sheets of horizontal continuous casting exist defects. Based on the AZ31 magnesium alloy continuous casting and rolling technology research, the re- sult that the secondary cooling is a very effective method for controlling grain size is obtained, which improves the quality of magnesium alloy sheets. Prehat treatment before rolling and multiple-rolling can make the grain dynamic recry stallized and refined, which are the prerequisite conditions for the production of high-quality alloy thin sheet. By continuous casting and rolling, the ultrathin, ultra-wide, high quality magnesium alloy thin sheet can be produced.

关 键 词：镁合金 超薄超宽薄板 水平连铸 热轧 

分 类 号：TG339[金属学及工艺—金属压力加工]