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    • 2. 发明公开
    • 금속 성형체 제조 방법 및 이에 의해 제조되는 전자 기기하우징
    • 金属物体成型方法及其制造的电子器件的制造
    • KR1020030011711A
    • 2003-02-11
    • KR1020020045140
    • 2002-07-31
    • 후지쯔 가부시끼가이샤
    • 이시즈까마사노부아소노리야스니시이고오따기무라고이찌
    • B22D17/00
    • B22D19/00B22D17/00B22D17/2007B22D19/04B22D19/16
    • PURPOSE: A metal object forming method whereby a metal object with thin walls can be produced properly without suffering a defect resulting from poor flowability of the molten metal, and a housing of an electronic device that is produced by such a method are provided. CONSTITUTION: The metal object forming method comprises a preliminary step of providing a molding die(1) with flowability-improving material which melts into molten metal(30) and causes freezing point depression of the molten metal; and an injecting step of supplying the molten metal into the die for producing a casting, wherein the flowability-improving material comprises metal particles contained in lubricant, the lubricant being applied to a cavity-defining surface of the die at the preliminary step, the molten metal being supplied at a temperature high enough to melt at least part of the metal particles at the injecting step, wherein the metal particles are coated with thermoplastic resin, and wherein the flowability-improving material comprises a metal plate, the metal plate being disposed on a cavity-defining surface of the die at the preliminary step, the molten metal being supplied at a temperature high enough to melt at least part of the metal plate at the injecting step.
    • 目的:一种能够适当地制造具有薄壁的金属物体而不会产生由于熔融金属的差的流动性导致的缺陷的金属物体形成方法,并且提供通过这种方法制造的电子设备的壳体。 构成:金属物体形成方法包括提供具有流动性改善材料的成型模具(1)的预备步骤,其熔化到熔融金属(30)中并引起熔融金属的凝固点下压; 以及将熔融金属供给到用于制造铸件的模具中的注入步骤,其中所述流动性改进材料包含润滑剂中包含的金属颗粒,所述润滑剂在所述预备步骤中被施加到所述模具的空腔限定表面,所述熔融 金属被供给的温度足够高以在注入步骤熔化至少部分金属颗粒,其中金属颗粒被热塑性树脂涂覆,并且其中流动性改进材料包括金属板,金属板设置在 在预备步骤中模具的空腔限定表面,熔融金属在足够高的温度下被供应以在注射步骤熔化金属板的至少一部分。