锻压技术

镁合金薄板连续铸轧技术研究

英文标题：Technology research on magnesium alloy sheets in horizontal continuous casting process

作者：邢预恩张根保要二仓

关键词：镁合金超薄超宽薄板水平连铸热轧

分类号：TG146.2+2; TG115.21+3; TG335.5+5

出版年,卷(期):页码：2012,37(2):29-31

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, magnesium 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 result 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.

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