Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Thin-wall large-aperture cordierite honeycomb ceramic carrier and preparation method thereof
The invention discloses a thin-wall large-aperture cordierite honeycomb ceramic carrier. The cordierite crystal phase content in the cordierite honeycomb ceramic carrier is larger than 90%, the medianpore diameter of the cordierite honeycomb ceramic carrier is larger than or equal to 4.3 micrometers, the porosity is larger than or equal to 32.7%, the thermal expansion coefficient is smaller thanor equal to 0.35*10<-6>/DEG C, and the A-axis compression resistance is larger than or equal to 5.5MPa. The invention also discloses a preparation method of the ceramic carrier, which comprises the following steps: (1) uniformly dry-mixing an inorganic material with an organic binder to obtain a dry-mixed material; (2) adding a surfactant, a lubricating agent and a dispersing agent into the dry-mixed material, and performing wet mixing to obtain plastic particles; (3) removing impurities from the plastic particles, and performing continuous extrusion in a vacuumized state; and (4) carrying outmicrowave treatment on the extruded semi-finished product, and carrying out air suction drying, cutting and sintering at the same time to obtain the honeycomb ceramic carrier.
本发明公开一种薄壁大孔径的堇青石蜂窝陶瓷载体，堇青石蜂窝陶瓷载体中堇青石晶相含量＞90％，堇青石蜂窝陶瓷载体的中值孔径≥4.3μm，孔隙率≥32.7％，热膨胀系数≤0.35×10‑6/℃，A轴抗压≥5.5MPa。本发明还公开了陶瓷载体的制备方法，包括如下步骤：(1)将无机物料与有机粘结剂干混均匀，得干混物料；(2)在干混物料中加入表面活性剂、润滑剂以及分散剂，湿混，得具有塑性的颗粒；(3)将塑性的颗粒除去杂质后，在抽真空状态下连续挤出；(4)将挤出成型后的半成品采用微波处理，同时进行吸风干燥，切割，烧结后，得蜂窝陶瓷载体。
Thin-wall large-aperture cordierite honeycomb ceramic carrier and preparation method thereof
The invention discloses a thin-wall large-aperture cordierite honeycomb ceramic carrier. The cordierite crystal phase content in the cordierite honeycomb ceramic carrier is larger than 90%, the medianpore diameter of the cordierite honeycomb ceramic carrier is larger than or equal to 4.3 micrometers, the porosity is larger than or equal to 32.7%, the thermal expansion coefficient is smaller thanor equal to 0.35*10<-6>/DEG C, and the A-axis compression resistance is larger than or equal to 5.5MPa. The invention also discloses a preparation method of the ceramic carrier, which comprises the following steps: (1) uniformly dry-mixing an inorganic material with an organic binder to obtain a dry-mixed material; (2) adding a surfactant, a lubricating agent and a dispersing agent into the dry-mixed material, and performing wet mixing to obtain plastic particles; (3) removing impurities from the plastic particles, and performing continuous extrusion in a vacuumized state; and (4) carrying outmicrowave treatment on the extruded semi-finished product, and carrying out air suction drying, cutting and sintering at the same time to obtain the honeycomb ceramic carrier.
本发明公开一种薄壁大孔径的堇青石蜂窝陶瓷载体，堇青石蜂窝陶瓷载体中堇青石晶相含量＞90％，堇青石蜂窝陶瓷载体的中值孔径≥4.3μm，孔隙率≥32.7％，热膨胀系数≤0.35×10‑6/℃，A轴抗压≥5.5MPa。本发明还公开了陶瓷载体的制备方法，包括如下步骤：(1)将无机物料与有机粘结剂干混均匀，得干混物料；(2)在干混物料中加入表面活性剂、润滑剂以及分散剂，湿混，得具有塑性的颗粒；(3)将塑性的颗粒除去杂质后，在抽真空状态下连续挤出；(4)将挤出成型后的半成品采用微波处理，同时进行吸风干燥，切割，烧结后，得蜂窝陶瓷载体。
Thin-wall large-aperture cordierite honeycomb ceramic carrier and preparation method thereof
一种薄壁大孔径的堇青石蜂窝陶瓷载体及其制备方法
NIU SIXUN (Autor:in) / PAN JIQING (Autor:in) / ZHANG ZHAOHE (Autor:in) / HUANG FEIHUI (Autor:in) / LIU HONGYUE (Autor:in) / CHENG GUOYUAN (Autor:in) / WANG YONGWEI (Autor:in)
10.07.2020
Patent
Elektronische Ressource
Chinesisch
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