Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ceramic core preparation method
The invention discloses a ceramic core preparation method. The method includes the steps that 1, ceramic powder is dried at the temperature ranging from 105 DEG C to 140 DEG C, and the dried ceramic powder is added to a vacuum mixing and stirring machine to be stirred at the constant temperature ranging from 75 DEG C to 95 DEG C; 2, oleic acid with the mass accounting for 0.3-1% of ceramic powder is weighed and dissolved with absolute ethyl alcohol with the volume being 10-30 times that of the oleic acid, a oleic acid ethanol solution is sprayed into the ceramic powder, stirring is conducted, a gas outlet valve is opened, and full mixing and gas discharging are conducted; 3, plasticizer with the mass accounting for 14-17% of the ceramic powder is weighed and added to the ceramic powder after being molten, and full stirring is conducted; 4, the stirring speed is lowered, the gas outlet valve is closed, vacuumizing is conducted till the pressure reaches over 88 KPa, a vacuum pump is closed, the stirring speed is recovered, and stirring is conducted continuously till the surface of the ceramic slurry is smooth, level and free of visible bubbles and particles; 5, the ceramic slurry is transferred to a core pressing machine to be stirred over 8 hours, pressing of a green ceramic core is conducted, and shaping and calcination are conducted on the pressed green ceramic core.
Ceramic core preparation method
The invention discloses a ceramic core preparation method. The method includes the steps that 1, ceramic powder is dried at the temperature ranging from 105 DEG C to 140 DEG C, and the dried ceramic powder is added to a vacuum mixing and stirring machine to be stirred at the constant temperature ranging from 75 DEG C to 95 DEG C; 2, oleic acid with the mass accounting for 0.3-1% of ceramic powder is weighed and dissolved with absolute ethyl alcohol with the volume being 10-30 times that of the oleic acid, a oleic acid ethanol solution is sprayed into the ceramic powder, stirring is conducted, a gas outlet valve is opened, and full mixing and gas discharging are conducted; 3, plasticizer with the mass accounting for 14-17% of the ceramic powder is weighed and added to the ceramic powder after being molten, and full stirring is conducted; 4, the stirring speed is lowered, the gas outlet valve is closed, vacuumizing is conducted till the pressure reaches over 88 KPa, a vacuum pump is closed, the stirring speed is recovered, and stirring is conducted continuously till the surface of the ceramic slurry is smooth, level and free of visible bubbles and particles; 5, the ceramic slurry is transferred to a core pressing machine to be stirred over 8 hours, pressing of a green ceramic core is conducted, and shaping and calcination are conducted on the pressed green ceramic core.
Ceramic core preparation method
HE JIAN (Autor:in) / ZENG HONG (Autor:in) / WU LIN (Autor:in) / YANG GONGXIAN (Autor:in) / YANG ZHAOHONG (Autor:in)
21.10.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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