Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-pore-density ultrathin-wall cordierite honeycomb ceramic carrier for TWC, and preparation method thereof
The invention discloses a preparation method of a high-pore-density ultrathin-wall cordierite honeycomb ceramic carrier for a gasoline engine three-way catalytic converter. The preparation method comprises the following steps: (1) stirring an inorganic material, an organic dispersant and purified water to form a slurry, and carrying out spray drying on an inorganic powder by using a spray drying device to form a powder with excellent flowability; (2) carrying out dry mixing on the powder and an organic binder, then adding a lubricant and a dispersion medium, and carrying out wet mixing to enable the mixture to form plastic mud pellets; and (3) carrying out extrusion molding on the mud pellets obtained in step (2) to form a green body, and carrying out dielectric drying, hot air drying, cutting and firing on the green body to finally prepare the honeycomb ceramic product, wherein the inorganic material comprises acicular raw kaolin. According to the preparation method provided by the invention, the acicular raw kaolin is introduced, so that the prepared product has ultralow CTE, high yield and low cost.
本发明公开一种用于汽油机三效催化转化器的高孔密度超薄壁堇青石蜂窝陶瓷载体的制备方法，包括如下步骤：(1)将无机料、有机分散剂与纯净水搅拌化成泥浆，然后使用喷雾干燥装置将无机粉体雾化干燥，形成流动性优异的粉料；(2)将粉料与有机粘结剂干混，然后加入润滑剂以及分散介质进行湿混使得混合物形成具有塑性的泥丸；(3)将步骤(2)所得泥丸进行挤出成型，形成生坯，将生坯进行介电干燥，热风烘干，切割，烧成，最终制成蜂窝陶瓷制品，无机料中包括针状生高岭土。本发明提供的制备方法中，通过引入针状生高岭土使得制得制品具有超低的CTE，高的成品率和低的成本。
High-pore-density ultrathin-wall cordierite honeycomb ceramic carrier for TWC, and preparation method thereof
The invention discloses a preparation method of a high-pore-density ultrathin-wall cordierite honeycomb ceramic carrier for a gasoline engine three-way catalytic converter. The preparation method comprises the following steps: (1) stirring an inorganic material, an organic dispersant and purified water to form a slurry, and carrying out spray drying on an inorganic powder by using a spray drying device to form a powder with excellent flowability; (2) carrying out dry mixing on the powder and an organic binder, then adding a lubricant and a dispersion medium, and carrying out wet mixing to enable the mixture to form plastic mud pellets; and (3) carrying out extrusion molding on the mud pellets obtained in step (2) to form a green body, and carrying out dielectric drying, hot air drying, cutting and firing on the green body to finally prepare the honeycomb ceramic product, wherein the inorganic material comprises acicular raw kaolin. According to the preparation method provided by the invention, the acicular raw kaolin is introduced, so that the prepared product has ultralow CTE, high yield and low cost.
本发明公开一种用于汽油机三效催化转化器的高孔密度超薄壁堇青石蜂窝陶瓷载体的制备方法，包括如下步骤：(1)将无机料、有机分散剂与纯净水搅拌化成泥浆，然后使用喷雾干燥装置将无机粉体雾化干燥，形成流动性优异的粉料；(2)将粉料与有机粘结剂干混，然后加入润滑剂以及分散介质进行湿混使得混合物形成具有塑性的泥丸；(3)将步骤(2)所得泥丸进行挤出成型，形成生坯，将生坯进行介电干燥，热风烘干，切割，烧成，最终制成蜂窝陶瓷制品，无机料中包括针状生高岭土。本发明提供的制备方法中，通过引入针状生高岭土使得制得制品具有超低的CTE，高的成品率和低的成本。
High-pore-density ultrathin-wall cordierite honeycomb ceramic carrier for TWC, and preparation method thereof
一种TWC用高孔密度超薄壁堇青石蜂窝陶瓷载体及其制备方法
HUANG FEIHUI (Autor:in) / PAN JIQING (Autor:in) / ZHANG ZHAOHE (Autor:in) / LIU HONGYUE (Autor:in) / NIU SIXUN (Autor:in) / CHENG GUOYUAN (Autor:in) / HAO LIMIAO (Autor:in)
29.05.2020
Patent
Elektronische Ressource
Chinesisch
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