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    • 8. 发明专利
    • Magnesium alloy material, and method for producing the same
    • 镁合金材料及其制造方法
    • JP2008127639A
    • 2008-06-05
    • JP2006314907
    • 2006-11-21
    • Kobe Steel LtdKumamoto UnivNissan Motor Co Ltd国立大学法人 熊本大学日産自動車株式会社株式会社神戸製鋼所
    • NAKADA MAMORUYAMADA YUICHIITAKURA KOJIOKADA YOSHIOSANBE TAKAHIROKAWAMURA YOSHIHITOYAMAZAKI TOMOAKI
    • C22C23/06C22C23/04C22F1/00C22F1/06
    • PROBLEM TO BE SOLVED: To provide a magnesium alloy material having excellent mechanical properties, and having excellent dimensional precision in a high temperature atmosphere, and to provide a method for producing the same.
      SOLUTION: The magnesium alloy material is composed of an Mg-Zn-Gd based alloy comprising, by atom, 0.5 to 3% Zr and 1 to 5% Gd, and the balance Mg with inevitable impurities, and comprises Mg
      5 Gd and/or Mg
      7 Gd in the structure, and in which the area ratio of Mg
      3 Gd and long period stacked structure crystallized out or precipitated in grain boundaries is ≥30%. Further, the method for producing the magnesium alloy material comprises: a melt casting stage where an Mg-Zn-Gd based alloy is melted and cast, so as to obtain a cast material; a plastic working stage where the cast material is subjected to plastic working, so as to produce the worked material; and a heat treatment stage where the worked material is subjected to heat treatment so as to be held at 200 to 300°C for ≥20 hr.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供具有优异的机械性能并且在高温气氛中具有优异的尺寸精度的镁合金材料,并提供其制造方法。 解决方案:镁合金材料由Mg-Zn-Gd基合金组成,其包含原子为0.5-3%Zr和1至5%Gd,余量为Mg与不可避免的杂质,并且包含Mg 5 Gd和/或Mg 7 Gd,并且其中Mg 3 Gd和长周期堆叠结构的面积比结晶出或沉淀 晶界≥30%。 此外,镁合金材料的制造方法包括:熔融浇铸阶段,其中熔融并铸造Mg-Zn-Gd基合金,以获得铸造材料; 塑料加工台,其中铸造材料进行塑性加工,以产生加工材料; 以及加热材料进行热处理以在200〜300℃保持≥20小时的热处理阶段。 版权所有(C)2008,JPO&INPIT
    • 10. 发明专利
    • Fastening structure for magnesium parts
    • 镁零件的紧固结构
    • JP2006205174A
    • 2006-08-10
    • JP2005016642
    • 2005-01-25
    • Nissan Motor Co Ltd日産自動車株式会社
    • ITAKURA KOJISANBE TAKAHIROUSUKI HIDEKIHAYASHI TAKAO
    • B22D19/04F16B5/02F16B37/04
    • PROBLEM TO BE SOLVED: To provide a fastening structure for magnesium parts which is used under comparatively high temperature atmosphere, and in which a fastening axial force is hardly reduced at a low cost, with respect to the structure for fastening, with a bolt, the parts using the magnesium or the magnesium alloy.
      SOLUTION: When a second member 2 is fastened to a first member 1 composed of the magnesium or the magnesium alloy by using the metal-made bolt 3, a metal member 4 composed of an iron-base material and an aluminum alloy or a heat-resistant magnesium alloy and provided with a fall-out preventive means and a rotating preventive means from the first member 1 together with a female-screw part 4a for screwing to the metal-made bolt 3 is cast in the first member 1 to make the cast-in part and the bolt 3 passed through a bolt inserting hole 2a formed in the second member 2 is fastened into the female-screw part 4a in the cast-in part 4.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供一种在比较高温度的气氛下使用的镁部件的紧固结构,并且相对于紧固结构,以低成本难以降低紧固轴向力, 螺栓,零件使用镁或镁合金。 解决方案:通过使用金属制螺栓3将第二构件2紧固到由镁或镁合金构成的第一构件1时,由铁基材料和铝合金构成的金属构件4或 在第一构件1中铸造耐热镁合金,并且设置有防脱落装置和旋转防止装置,第一构件1与用于旋拧到金属制螺栓3的内螺纹部分4a一起被浇铸到 使铸件部分和螺栓3穿过形成在第二构件2中的螺栓插入孔2a被固定到铸造部分4中的内螺纹部分4a中。(C)2006年, JPO&NCIPI