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
The invention discloses a ceramic irrigation film preparation mold and a gradient ceramic irrigation film preparation process. 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 face, 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 face of the outer mold for the inner core to be vertically inserted. The preparation process comprises the following steps: firstly, preparing slurry and precursor powder; and preparing the gradient ceramic irrigation film by adopting a green body solid forming process. According to the porous SiO2/Si3N4 complex-phase gradient ceramic irrigation membrane prepared by adopting the preparation mold and the preparation process, the traditional interlayer bonding mode of a support body and a membrane layer is changed, the thermal stress between the support body and the membrane layer is fundamentally alleviated, and the bonding strength between the support body and the membrane layer is improved; meanwhile, the pore difference between the bonding layer and the membrane layer inan interlayer bonding mode is improved, so the pore gradient is changed in a gradient manner along the water flow direction, and the filtering flux is increased.
本发明公开了一种陶瓷灌溉膜制备模具及梯度陶瓷灌溉膜制备工艺，该模具，包括外模，加压棒和内芯；所述外模为包含底面的空心柱状结构，加压棒置于外模内，加压棒中心和外模底面中心留孔供内芯竖向插入。该梯度陶瓷灌溉膜制备工艺，包括如下步骤：先制备浆料和前驱体粉末；采用生坯固态成型工艺制备梯度陶瓷灌溉膜。采用本发明的制备模具和制备工艺，制备的多孔SiO/SiN复相梯度陶瓷灌溉膜：改变了以往支撑体和膜层层间粘合的方式，从根本上缓和了支撑体和膜层间的热应力，提高了支撑体与膜层间的结合强度；同时，改善了层间粘结方式中，粘结层和膜层之间的孔隙差异，使孔隙梯度沿水流方向呈现梯度变化，增加了过滤通量。
Ceramic irrigation film preparation mold and gradient ceramic irrigation film preparation process
The invention discloses a ceramic irrigation film preparation mold and a gradient ceramic irrigation film preparation process. 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 face, 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 face of the outer mold for the inner core to be vertically inserted. The preparation process comprises the following steps: firstly, preparing slurry and precursor powder; and preparing the gradient ceramic irrigation film by adopting a green body solid forming process. According to the porous SiO2/Si3N4 complex-phase gradient ceramic irrigation membrane prepared by adopting the preparation mold and the preparation process, the traditional interlayer bonding mode of a support body and a membrane layer is changed, the thermal stress between the support body and the membrane layer is fundamentally alleviated, and the bonding strength between the support body and the membrane layer is improved; meanwhile, the pore difference between the bonding layer and the membrane layer inan interlayer bonding mode is improved, so the pore gradient is changed in a gradient manner along the water flow direction, and the filtering flux is increased.
本发明公开了一种陶瓷灌溉膜制备模具及梯度陶瓷灌溉膜制备工艺，该模具，包括外模，加压棒和内芯；所述外模为包含底面的空心柱状结构，加压棒置于外模内，加压棒中心和外模底面中心留孔供内芯竖向插入。该梯度陶瓷灌溉膜制备工艺，包括如下步骤：先制备浆料和前驱体粉末；采用生坯固态成型工艺制备梯度陶瓷灌溉膜。采用本发明的制备模具和制备工艺，制备的多孔SiO/SiN复相梯度陶瓷灌溉膜：改变了以往支撑体和膜层层间粘合的方式，从根本上缓和了支撑体和膜层间的热应力，提高了支撑体与膜层间的结合强度；同时，改善了层间粘结方式中，粘结层和膜层之间的孔隙差异，使孔隙梯度沿水流方向呈现梯度变化，增加了过滤通量。
Ceramic irrigation film preparation mold and gradient ceramic irrigation film preparation process
一种陶瓷灌溉膜制备模具及梯度陶瓷灌溉膜制备工艺
WU PUTE (Autor:in) / ZHOU WEI (Autor:in) / ZHANG LIN (Autor:in) / CAI YAOHUI (Autor:in) / ZHAO XIAO (Autor:in) / REN NAIWANG (Autor:in) / LIU YING (Autor:in) / HAN MENGXUE (Autor:in) / YAO CHUNPING (Autor:in) / FU BOYANG (Autor:in)
10.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
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
/
A01G
Gartenbau
,
HORTICULTURE
/
C04B
Kalk
,
LIME
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