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    • 7. 发明专利
    • Magnesium alloy member and its production method
    • 镁合金会员及其生产方法
    • JP2003277899A
    • 2003-10-02
    • JP2002083827
    • 2002-03-25
    • Kenji AzumaKurimoto LtdMeishin Kk名神株式会社健司 東株式会社栗本鐵工所
    • KITAGAWA MASAYOSHIMICHIURA YOSHISADAMAEKAWA KEIICHIADACHI TOSHIHIKOAZUMA KENJI
    • B21J5/00C22F1/00C22F1/06
    • PROBLEM TO BE SOLVED: To provide a method for producing a magnesium alloy having stable fine crystal grain structure and excellent formability by solving such problem as coarsening of crystal grains, obstruction to formability and increase of energy consumption and to provide a magnesium alloy member.
      SOLUTION: After applying a solution-treatment to the magnesium alloy, in a first forging process, a pre-strain of not less than at least 0.4 is given in a temperature range of 250-400°C and thereafter, an ageing treatment is applied and successively, a secondary forging is performed at a necessary temperature of not higher than the forging temperature. In this way, the fine grains of magnesium compound after ageing-treatment are precipitated and the coarsening of the crystal grains is prevented during the heating process in the secondary forging process. Further, the formed product having about ≤10 μm average crystal grain diameter and the stable fine crystal grain structure of ≤5 μm average crystal grain diameter under a suitable condition with a fining action by forging, and the material excellent in formability for the following working process, can be obtained.
      COPYRIGHT: (C)2004,JPO
    • 解决的问题:提供一种通过解决晶粒粗大化,成形性阻碍和能量消耗增加等问题,提供具有稳定的细晶粒结构和成形性优异的镁合金的制造方法,提供镁合金 会员。 解决方案:在对镁合金进行固溶处理之后,在第一锻造工艺中,在250-400℃的温度范围内给出至少为0.4以上的预应变,此后,老化 进行处理,依次在不高于锻造温度的必要温度下进行二次锻造。 以这种方式,老化处理后的镁化合物的细晶粒析出,并且在二次锻造工序中的加热过程中可以防止晶粒的粗大化。 此外,在具有通过锻造的精细作用的合适条件下,具有约≤10μm平均晶粒直径和稳定的细晶粒结构的平均晶粒直径≤5μm的成形制品,以及用于下列加工的成形性优异的材料 过程中,可以得到。 版权所有(C)2004,JPO
    • 9. 发明专利
    • Joining material, its manufacturing method, and vehicle body structure of traffic transportation means
    • 接合材料及其制造方法和交通运输手段的车身结构
    • JP2009101418A
    • 2009-05-14
    • JP2008311685
    • 2008-12-08
    • Kenji AzumaKurimoto LtdRailway Technical Res Inst健司 東株式会社栗本鐵工所財団法人鉄道総合技術研究所
    • MORI HISASHITSUJIMURA TAROSAKAMOTO YOSHIOKITAGAWA MASAYOSHIMICHIURA YOSHISADAMAEKAWA KEIICHIAZUMA KENJI
    • B23K20/00B23K103/18B61D17/00B61D17/04
    • Y02T30/34
    • PROBLEM TO BE SOLVED: To provide a joining material which attains lightweighting while keeping strength, rigidityor the like, and to provide its manufacturing method and a vehicle body structure of a traffic transportation means.
      SOLUTION: The joining material 3 is used for the vehicle body structure of the traffic transportation means such as a railroad vehicle. The joining material 3 is a joined plate (clad material) of a sandwich structure in which a metal 3a and a metal 3b are joined by an adhesive material layer 3c. The metal 3a is an alloy plate material (bulk material) such as aluminum alloy, titanium alloy or stainless steel. As the aluminum alloy, an aluminum alloy for flattening is desirable, particularly, a heat treated alloy such as 6000 series aluminum alloy which excels in strength and corrosion resistance and which enables a prescribed strength to be obtained by age hardening. The metal 3b is magnesium alloy and is a magnesium alloy extrusion material for which extrusion machining is performed. The adhesive layer 3c is desirably a strong adhesive such as epoxy bond if heat treatment is performed after application.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种在保持强度,刚度等的同时实现轻量化的接合材料,并提供其交通运输装置的制造方法和车体结构。 解决方案:接合材料3用于诸如铁路车辆的交通运输工具的车身结构。 接合材料3是夹层结构的接合板(包覆材料),其中金属3a和金属3b通过粘合材料层3c接合。 金属3a是铝合金,钛合金或不锈钢等合金板材(散装材料)。 作为铝合金,优选用于平坦化的铝合金,特别是具有强度和耐腐蚀性优异的6000系铝合金的热处理合金,能够通过时效硬化获得规定的强度。 金属3b是镁合金,是进行挤压加工的镁合金挤压材料。 如果在施加之后进行热处理,则粘合剂层3c希望是诸如环氧树脂粘合剂的强粘合剂。 版权所有(C)2009,JPO&INPIT