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    • 4. 发明公开
    • 고강도 마그네슘 합금 판재 및 그 제조방법
    • 具有高强度和制造方法的镁合金板
    • KR1020090083701A
    • 2009-08-04
    • KR1020080009667
    • 2008-01-30
    • 포항공과대학교 산학협력단
    • 배근태박성수김낙준강대훈신광선
    • C22C23/04
    • C22C23/04B22D11/0622C01P2002/60C22C1/02C22C2200/00C22C2202/00C22F1/06
    • A high intensity magnesium alloy sheet and a fabricating method thereof are provided to control the size, shape and volume fraction of dispersed particles using the following treatment of a strip casting method, thereby improving an intensity and hardness of the magnesium alloy sheet. A high intensity magnesium alloy sheet is composed of 1-10wt% of Zn, 0.25-3wt% of Mn, 1-6wt% of Al and 0.05-1wt% of Cu. Inevitable impurities can be included in the magnesium alloy. The average diameter of crystal grains is 20mum or less. The average diameter of dispersoids in the micro-structure of the high intensity magnesium alloy sheet is 5mum or less. The volume fraction of the dispersoids is 5% or less. The tensile strength and elongation ratio of the magnesium alloy are 300MPa and 15% respectively.
    • 提供高强度镁合金板及其制造方法,以通过以下处理带状铸造法来控制分散颗粒的尺寸,形状和体积分数,从而提高镁合金板的强度和硬度。 高强度镁合金板由1〜10wt%的Zn,0.25〜3wt%的Mn,1〜6wt%的Al和0.05〜1wt%的Cu组成。 不可避免的杂质可以包括在镁合金中。 晶粒的平均直径为20μm以下。 高强度镁合金板的微观结构中的分散体的平均直径为5μm以下。 分散体的体积分数为5%以下。 镁合金的拉伸强度和伸长率分别为300MPa和15%。
    • 9. 发明公开
    • 고강도 마그네슘 합금 판재 및 그 제조방법
    • 具有高强度和制造方法的镁合金板
    • KR1020090120194A
    • 2009-11-24
    • KR1020080046114
    • 2008-05-19
    • 포항공과대학교 산학협력단
    • 배근태박우진강대훈김경훈김낙준배준호
    • B22D11/06C22C23/02
    • PURPOSE: A high-sensitive magnesium alloy sheet and a manufacturing method thereof are provided to improve normal temperature strength and hardness by controlling formation of intermetallic compounds and grain refinement. CONSTITUTION: A manufacturing method of a high-sensitive magnesium alloy sheet comprises the following steps of: manufacturing molten metal by dissolving alloy; maintaining the temperature of the molten metal; manufacturing a magnesium alloy sheet by injecting the molten metal between to cooling rolls(30); processing the magnesium alloy sheet at a temperature of 250 ~ 450°C for 1 ~ 24 hours; pre-heating the magnesium alloy sheet at the temperature of 150 ~ 450°C; rolling the magnesium alloy sheet; and processing the magnesium alloy sheet at the temperature of 150 ~ 400°C for 0.5 ~ 10 hours.
    • 目的:通过控制金属间化合物的形成和晶粒细化,提供高灵敏度镁合金板及其制造方法,以提高常温强度和硬度。 构成:高灵敏度镁合金板的制造方法包括以下步骤:通过溶解合金来制造熔融金属; 保持熔融金属的温度; 通过将熔融金属注入到冷却辊(30)之间来制造镁合金板; 在250〜450℃的温度下加工镁合金板1〜24小时; 在150〜450℃的温度下预热镁合金板; 轧制镁合金板; 并在150〜400℃的温度下加工镁合金板0.5〜10小时。