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    • 8. 发明授权
    • 알루미늄을 포함하는 마그네슘 합금용 결정립 미세화제, 마그네슘 합금의 제조방법 및 이 방법에 의해 제조된 마그네슘 합금
    • 用于包含镁的合金的颗粒精炼机,用于生产由该方法生产的镁合金和镁合金的方法
    • KR101428593B1
    • 2014-08-18
    • KR1020140042715
    • 2014-04-10
    • 한국기계연구원
    • 배준호유봉선김영민김하식임창동문병기박성혁
    • C22C23/02C22C1/02
    • C22C21/00B22D21/04C22C1/1042
    • A grain refiner for magnesium (Mg) alloys according to the present invention contains aluminum (Al), manganese (Mn), and compounds of Al and Mn contained in a fine structure of the refiner. Among the compounds of Al and Mn, the area of the compounds of Al/Mn having a compositional ratio of 4-4.5 is greater than the area of the compounds of Al/Mn having a compositional ratio of 5.5-6.5. When the refiner is added to molten Mg, a crystal grain is refined to the size of 50-100 μm. The refiner according to the present invention can be introduced into the molten Mg provided in the form of an alloy and a liquid phase rather than the form of powders differently from a refiner according to the related art. Accordingly, the refiner according to the present invention can be safely introduced into the molten Mg while lowering the danger of ignition of the molten Mg. In addition, the refiner is economical and advantageous in that the refiner can be easily applied to a typical commercialized molding facility.
    • 根据本发明的镁(Mg)合金的晶粒细化剂包含铝(Al),锰(Mn)以及精炼机精细结构中所含的Al和Mn的化合物。 在Al和Mn的化合物中,组成比为4-4.5的Al / Mn化合物的面积大于组成比为5.5-6.5的Al / Mn化合物的面积。 当将精磨机加入到熔融的Mg中时,晶粒细化至50-100μm的大小。 根据本发明的精磨机可以被引入到以合金和液相的形式提供的熔融Mg中,而不是与根据现有技术的精磨机不同的粉末形式。 因此,根据本发明的精磨机可以安全地引入熔融的Mg,同时降低熔融Mg的点燃危险。 此外,精磨机是经济和有利的,因为精磨机可以容易地应用于典型的商业化成型设备。
    • 9. 发明授权
    • 마그네슘 합금 고속 압출방법 및 그에 의해 제조된 마그네슘 합금 압출재
    • 用于镁合金和镁合金挤压材料的高速挤压方法
    • KR101406111B1
    • 2014-06-16
    • KR1020130051763
    • 2013-05-08
    • 한국기계연구원
    • 박성혁유봉선김하식배준호김영민문병기임창동
    • B21C23/08B21C29/02C22C23/00B22D21/04
    • The present invention relates to a high speed extrusion method for a magnesium alloy and a magnesium alloy extruded material manufactured thereby. The method comprises a step of preparing a magnesium alloy billet composed of 6.5-7.5 wt% of tin (Sn), 0.1-1.5 wt% of zinc (Zn), 0.2-2 wt% of aluminum (Al), and the rest of magnesium (Mg); a step of performing the homogenization heat-treatment of the magnesium alloy billet; and a step of extruding the homogenization heat-treated magnesium alloy billet under an extrusion condition having 350-500°C of an extrusion temperature and 10-14 m/min of an output speed. According to the present invention, the high speed extrusion method for a magnesium alloy can increase the extrudability of the magnesium alloy enough for the production of the healthy magnesium alloy extruded material in which hot cracks are not occurred on the surface under the extrusion condition having 350-500°C of the high temperature and 10-14 m/min of the high speed. Thus, the high speed extrusion method for a magnesium alloy according to the present invention can increase productivity through high speed extrusion which is impossible in an existing commercial magnesium alloy, such as an AZ80 alloy or a ZK60 alloy; thereby being used for the mass production of the magnesium alloy extruded material.
    • 本发明涉及一种镁合金的高速挤出方法及其制造的镁合金挤压材料。 该方法包括制备由6.5-7.5重量%的锡(Sn),0.1-1.5重量%的锌(Zn),0.2-2重量%的铝(Al)组成的镁合金坯料的步骤,其余的 镁(Mg); 进行镁合金坯料的均质化热处理的工序; 在挤出温度为350-500℃,输出速度为10-14m / min的挤出条件下挤出均质化热处理的镁合金坯料的步骤。 根据本发明,镁合金的高速挤压方法可以提高镁合金的挤出性,足以制造在具有350的挤出条件下在表面上没有发生热裂纹的健康的镁合金挤压材料 -500°C的高温和10-14 m / min的高速。 因此,根据本发明的镁合金的高速挤出方法可以通过高速挤出提高生产率,这在现有的商业镁合金如AZ80合金或ZK60合金中是不可能的; 从而用于大量生产镁合金挤压材料。