Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Densifying method for selective laser sintered ceramic parts
The invention relates to the material field and particularly relates to a densifying method for selective laser sintered ceramic parts. The method comprises the following steps: a) printing a biscuit of a ceramic part by using a selective laser sintering technology; b) carrying out vacuum pressure impregnation at least twice; c) sheathing the biscuit of the ceramic part and vacuumizing; d) carrying out cold isostatic pressing treatment; e) carrying out adhesive removing treatment; f) repeating the steps c) and d); g, presintering the biscuit after second cold isostatic pressing treatment; and h) and carrying out hot isostatic pressing aftertreatment. According to the method, the biscuit of the ceramic part is subjected to vacuum pressure impregnation in vacuum, thereby effectively increasing the absorption rate of the biscuit of the ceramic part to a solution and reducing porosity; since cold isostatic pressing treatment is carried out twice in sequence, the biscuit is effectively prevented from collapsing in disorder, thereby further improving the density and strength of the ceramic part; and in addition, the cold isostatic pressing sheath is simple in structure, convenient to use, can be reused, is high in efficiency, is low in consumption and does not need plastic package.
Densifying method for selective laser sintered ceramic parts
The invention relates to the material field and particularly relates to a densifying method for selective laser sintered ceramic parts. The method comprises the following steps: a) printing a biscuit of a ceramic part by using a selective laser sintering technology; b) carrying out vacuum pressure impregnation at least twice; c) sheathing the biscuit of the ceramic part and vacuumizing; d) carrying out cold isostatic pressing treatment; e) carrying out adhesive removing treatment; f) repeating the steps c) and d); g, presintering the biscuit after second cold isostatic pressing treatment; and h) and carrying out hot isostatic pressing aftertreatment. According to the method, the biscuit of the ceramic part is subjected to vacuum pressure impregnation in vacuum, thereby effectively increasing the absorption rate of the biscuit of the ceramic part to a solution and reducing porosity; since cold isostatic pressing treatment is carried out twice in sequence, the biscuit is effectively prevented from collapsing in disorder, thereby further improving the density and strength of the ceramic part; and in addition, the cold isostatic pressing sheath is simple in structure, convenient to use, can be reused, is high in efficiency, is low in consumption and does not need plastic package.
Densifying method for selective laser sintered ceramic parts
ZHANG PEIZHI (Autor:in) / CAO CHONG (Autor:in) / HE CHENGGUI (Autor:in) / QI HAI (Autor:in) / GUO FANGQUAN (Autor:in)
13.05.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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