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    • 9. 发明授权
    • Porous metal structure body and method for manufacturing the same
    • 多孔金属结构体及其制造方法
    • US07153337B2
    • 2006-12-26
    • US10648307
    • 2003-08-27
    • Hiroshi Takiguchi
    • Hiroshi Takiguchi
    • B22F3/00
    • B22F3/26B22F3/1109B22F7/06B22F2998/10Y10T428/12042Y10T428/12097
    • The object of the invention is to provide a porous metal structure body suitable for reinforcing a light metal alloy member such as an aluminum alloy member. A mixed powder containing a metallic powder is filled in a mold, and is molded into a shape having a single cavity or plural cavities in the inner portion while having a maximum thickness of 6 mm or less at the surface portion side. The molded powder body is sintered to form into the porous metal structure body having a porosity of 20 to 50% by volume at the portions except the cavities. It is preferable that the metallic powder sintered body having a porosity of exceeding 50% by volume is formed into the cavities by being monolithically integrated with the porous metal structure body. Consequently, a structure being lightweight, having a high mechanical strength and being excellent in handling performance while being excellent in impregnability can be obtained.
    • 本发明的目的是提供一种适用于加强诸如铝合金构件的轻金属合金构件的多孔金属结构体。 将包含金属粉末的混合粉末填充到模具中,并且在表面部分侧成型为内部具有单个空腔或多个空腔的形状,同时最大厚度为6mm以下。 将模制的粉末体烧结成多孔金属结构体,其空隙率除外的部分的孔隙率为20〜50体积%。 优选通过与多孔金属结构体一体化地将具有超过50体积%的孔隙率的金属粉末烧结体形成为空腔。 因此,可以获得具有高机械强度并且处理性能优异并且浸渍性优异的结构。