Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ceramic irrigation film preparation mold and gradient ceramic irrigation film preparation process
Abstract The invention discloses a ceramic irrigation film preparation mold and a gradient ceramic irrigation film preparation process, wherein the mold comprises an outer mold, a pressurizing rod and an inner core, the outer mold is of a hollow columnar structure comprising a bottom surface, the pressurizing rod is arranged in the outer mold, and holes are reserved in the center of the pressurizing rod and the center of the bottom surface of the outer mold for vertical insertion of the inner core. The preparation process of the gradient ceramic irrigation film comprises the following steps of: firstly, preparing slurry and precursor powder; and preparing the gradient ceramic irrigation film by adopting a green body solid forming process. By adopting the preparation mold and the preparation process, the prepared porous SiO2/Si3N4 complex phase gradient ceramic irrigation film changes the prior bonding mode between the supporting body and the film layer, fundamentally relieves the thermal stress between the supporting body and the film layer, and improves the bonding strength between the supporting body and the film layer; and meanwhile, the pore difference between the bonding layer and the film layer in the interlayer bonding mode is improved, so that the pore gradient shows gradient change along the water flow direction, and the filtration flux is increased.
Ceramic irrigation film preparation mold and gradient ceramic irrigation film preparation process
Abstract The invention discloses a ceramic irrigation film preparation mold and a gradient ceramic irrigation film preparation process, wherein the mold comprises an outer mold, a pressurizing rod and an inner core, the outer mold is of a hollow columnar structure comprising a bottom surface, the pressurizing rod is arranged in the outer mold, and holes are reserved in the center of the pressurizing rod and the center of the bottom surface of the outer mold for vertical insertion of the inner core. The preparation process of the gradient ceramic irrigation film comprises the following steps of: firstly, preparing slurry and precursor powder; and preparing the gradient ceramic irrigation film by adopting a green body solid forming process. By adopting the preparation mold and the preparation process, the prepared porous SiO2/Si3N4 complex phase gradient ceramic irrigation film changes the prior bonding mode between the supporting body and the film layer, fundamentally relieves the thermal stress between the supporting body and the film layer, and improves the bonding strength between the supporting body and the film layer; and meanwhile, the pore difference between the bonding layer and the film layer in the interlayer bonding mode is improved, so that the pore gradient shows gradient change along the water flow direction, and the filtration flux is increased.
Ceramic irrigation film preparation mold and gradient ceramic irrigation film preparation process
WU PUTE (Autor:in) / ZHANG LIN (Autor:in) / ZHU DELAN (Autor:in) / ZHAO XINING (Autor:in) / ZHOU WEI (Autor:in) / CAI YAOHUI (Autor:in) / ZHAO XIAO (Autor:in) / HAN MENGXUE (Autor:in) / LIU YING (Autor:in) / YAO CHUNPING (Autor:in)
28.01.2021
Patent
Elektronische Ressource
Englisch
IPC:
B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
,
Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse
/
A01G
Gartenbau
,
HORTICULTURE
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
C04B
Kalk
,
LIME
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