METHOD FOR MOLDING ALUMINUM AND ALUMINUM ALLOY POWDER

The present invention relates to a new method for molding aluminum and aluminum alloy powder and, more specifically, provides a method for molding powder by: producing a feedstock by kneading aluminum powder, aluminum alloy powder, or aluminum composite powder comprising a reinforcing material, with...

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Bibliographic Details
Main Authors HAN, Kwan Hee, LEE, Han-Sol
Format Patent
LanguageEnglish
French
Korean
Published 27.04.2017
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Summary:The present invention relates to a new method for molding aluminum and aluminum alloy powder and, more specifically, provides a method for molding powder by: producing a feedstock by kneading aluminum powder, aluminum alloy powder, or aluminum composite powder comprising a reinforcing material, with a thermoplastic organic binder; molding the feedstock into a product having a complex shape, by powder injection molding, compression molding or extrusion molding; and then producing a high-density sintered body of a relative density of at least 96% by performing degreasing and sintering in a single heating process under an argon gas atmosphere. The present invention also suggests that various precision parts can be produced by the method for molding powder. La présente invention concerne un nouveau procédé de moulage de poudre d'aluminium et d'alliage d'aluminium et, plus spécifiquement, un procédé de moulage de poudre par : la production d'une charge d'alimentation par malaxage d'une poudre d'aluminium, d'une poudre d'alliage d'aluminium, ou d'une poudre composite d'aluminium comprenant un matériau de renforcement, avec un liant organique thermoplastique ; le moulage de ladite charge d'alimentation en un produit présentant une forme complexe, par moulage par injection, moulage par compression ou moulage par extrusion de poudre ; et enfin la production d'un corps fritté à haute densité d'une densité relative supérieure ou égale à 96 % par réalisation d'un dégraissage et d'un frittage au cours d'un traitement de chauffage unique sous atmosphère d'argon gazeux. La présente invention permet en outre de produire diverses pièces de précision grâce au procédé de moulage de poudre. 본 발명은 새로운 알루미늄 및 알루미늄 합금의 분말성형방법에 관한 것으로, 보다 상세하게는 알루미늄 분말, 알루미늄 합금 분말 또는 보강재를 포함하는 알루미늄 복합분말을 열가소성 유기결합제와 혼련하여 피드스탁을 제조하고 분말사출성형, 압축성형 또는 압출성형을 통해 상기 피드스탁을 형상이 복잡한 제품으로 성형한 후 아르곤 가스 분위기 하에서 탈지와 소결을 단일 가열 공정으로 수행하여 상대밀도가 96% 이상인 고밀도의 소결체를 제조하는 분말성형방법을 제공하며, 상기 분말성형방법을 통해 다양한 정밀부품을 제조할 수 있음을 제안한다.
Bibliography:Application Number: WO2016KR11800