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    • 6. 发明申请
    • MAGNESIUM ALLOY SHEET MATERIAL
    • 镁合金材料
    • US20110003139A1
    • 2011-01-06
    • US12864419
    • 2009-01-14
    • Masatada NumanoNozomu KawabeYukihiro OishiNobuyuki MoriNobuyuki OkudaRyuichi Inoue
    • Masatada NumanoNozomu KawabeYukihiro OishiNobuyuki MoriNobuyuki OkudaRyuichi Inoue
    • B32B15/02B32B5/16
    • C22F1/06B22D11/007B22D19/04B22D21/007C22C23/02C22C32/0063Y10T428/25
    • The invention offers a magnesium alloy sheet material having excellent plastic processibility and rigidity and a magnesium alloy formed body having excellent rigidity. The sheet material has magnesium alloy that forms the matrix containing hard particles. The region from the surface of the sheet material to a position away from the surface by 40% of the thickness of the sheet material is defined as the surface region, and the remaining region as the center region. Hard particles existing in the center region have a maximum diameter of more than 20 μm and less than 50 μm, and hard particles existing in the surface region have a maximum diameter of 20 μm or less. Because the hard particles existing at the surface side are fine particles, they are less likely to become the starting point of cracking or another defect at the time of plastic processing. Because the hard particles existing in the center region are coarse, they can increase the rigidity of the sheet material.
    • 本发明提供具有优异的塑性加工性和刚性的镁合金板材和具有优异刚性的镁合金成形体。 片材具有形成含有硬质粒子的基体的镁合金。 从片材的表面到离开表面的位置的片材的厚度的40%的区域被定义为表面区域,其余区域被定义为中心区域。 存在于中心区域的硬质粒子的最大直径大于20μm且小于50μm,存在于表面区域的硬质粒子的最大直径为20μm以下。 由于存在于表面侧的硬质粒子是微细的粒子,因此在塑性加工时不太可能成为开裂的起点或其他缺陷。 由于存在于中心区域的硬质粒子较粗糙,因此能够提高片材的刚性。
    • 8. 发明授权
    • Pipe joint
    • 管接头
    • US5593187A
    • 1997-01-14
    • US587757
    • 1995-11-22
    • Nobuyuki OkudaKoichi InoueToshinori TokutakeShinji Ito
    • Nobuyuki OkudaKoichi InoueToshinori TokutakeShinji Ito
    • F16L37/088F28F9/04F16L37/08
    • F28F9/0246F16L37/088F28F9/0248F28F9/0256Y10S285/914Y10S285/921
    • A pipe joint for joining two pipes end to end comprises a hollow cylindrical spigot portion having an annular projection on the outer periphery of a base end thereof, a hollow cylindrical socket portion having an inside diameter approximately equal to the outside diameter of the spigot portion and formed with two opposed apertures in its peripheral wall close to a forward end thereof and with a stepped part on the inner surface of the peripheral wall for the projection to come into contact with, the stepped part being closer to a base end of the socket portion than the apertures, and a stopper having a pair of circular-arc resilient legs fittable into the respective apertures from outside to project inward and each having a slanting inner surface, the legs being opposed to each other for the inwardly curved surfaces thereof to face each other. The projection is fixedly held between the stepped part and the legs by inserting the stopper into the apertures with the slanting surfaces facing toward the insertion side of the spigot portion and inserting the spigot portion into the socket portion until the projection moves past the legs. The spigot and socket portions are provided at the joint ends of the two respective pipes to be joined.
    • 用于将两个管端部到端部连接的管接头包括:中空圆柱形插口部分,其在其基端的外周上具有环形突起;中空圆柱形插座部分,其内径大致等于插口部分的外径; 在靠近其前端的周壁形成有两个相对的孔,并且在周壁的内表面上具有阶梯部分以使突起接触,台阶部分更靠近插座部分的基端 以及具有一对圆弧弹性腿的止动件,该腿可从外侧装配到相应的孔中,向内突出并且每个具有倾斜的内表面,所述腿彼此相对以使其向内弯曲的表面面对每个 其他。 通过将止动件插入孔中,将突起固定地保持在台阶部分和腿之间,其中倾斜表面面向插口部分的插入侧,并将插口部分插入到插座部分中,直到突起移动经过腿部。 插头和插座部分设置在待连接的两个相应管道的接头端。
    • 9. 发明申请
    • MAGNESIUM ALLOY MEMBER
    • 镁合金会员
    • US20110318603A1
    • 2011-12-29
    • US13203871
    • 2010-03-03
    • Nobuyuki OkudaMasatada NumanoNozomu KawabeTakahiko KitamuraYukihiro Oishi
    • Nobuyuki OkudaMasatada NumanoNozomu KawabeTakahiko KitamuraYukihiro Oishi
    • B21D39/00B32B15/00
    • C22C23/02C22F1/06Y10T428/12535Y10T428/12736
    • A magnesium alloy structural member includes a base material composed of a magnesium alloy having an aluminum content of 4.5% by mass to 11% by mass, in which the base material has a pair of first and second surfaces, the first surface and the second surface being opposite each other, in which when a distance between the first surface and the second surface is defined as a thickness and when surface area regions are defined as regions extending from the first and second surfaces to positions 20 μm from the respective first and second surfaces in the thickness direction, in at least both the surface area regions, 10 or more fine precipitates are present in any 20 μm×20 μm subregion of each of the surface area regions, each of the fine precipitates containing both Mg and Al and having a greatest dimension of 0.5 μm to 3 μm. Because at least each of the surface area regions is composed of a microscopic texture in which fine precipitates are dispersed, the magnesium alloy structural member has excellent corrosion resistance without anticorrosion treatment and can be used for housings and so forth.
    • 镁合金结构件包括由铝含量为4.5质量%至11质量%的镁合金构成的基材,其中基材具有一对第一表面和第二表面,第一表面和第二表面 彼此相对,其中当第一表面和第二表面之间的距离被定义为厚度时,并且当表面积区域被定义为从第一表面和第二表面延伸到从相应的第一和第二表面到位置20μm的区域时 在厚度方向上,在至少两个表面积区域中,在每个表面积区域的任何20μm×20μm的子区域中存在10个以上的微细析出物,每个微细析出物均含有Mg和Al,并且具有 最大尺寸为0.5μm至3μm。 由于表面积区域中的至少每一个都由微细沉淀物分散的微观组织构成,所以镁合金结构构件在没有防腐蚀处理的情况下具有优异的耐腐蚀性,并且可以用于外壳等。