Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of cordierite honeycomb ceramic carrier with porosity of 60% or above
The invention discloses a preparation method of a cordierite honeycomb ceramic carrier with the porosity of 60% or above. The preparation method comprises the following steps: inspecting, screening and preparing raw materials; mixing the materials; kneading mud in a mud kneading machine, roughly smelting and sieving, aging, refining and sieving; extruding and molding to obtain a honeycomb ceramic carrier green body; drying and shaping the honeycomb ceramic carrier green body; cutting and firing the dried carrier to obtain a cordierite honeycomb ceramic carrier; heating at a heating rate of 10-50 DEG C, and firing at 1410 +/-5 DEG C for 12 hours; and laminating, punching, scraping mud, and drying to obtain a finished product. The specific raw material composition is matched with a special preparation process, the porosity and the median pore diameter of the product are effectively improved while the product yield, the isostatic pressing strength, the thermal shock resistance and other properties are ensured, the porosity of the prepared product is 60-70%, the median pore diameter is 15-20 microns, and the use requirement of the gasoline car national sixth emission standard can be met.
本发明公开了一种具有60％以上的孔隙度的堇青石蜂窝陶瓷载体的制备方法，包括原材料的检验、筛选和制备；混料；在捏泥机中进行捏泥，粗炼过筛，陈腐、精炼过筛；挤出成型制得蜂窝陶瓷载体生坯；蜂窝陶瓷载体生坯进行干燥定型；干燥后的载体经切割、烧制得到堇青石质蜂窝陶瓷载体；烧制采用10‑50℃升温速率升温，1410±5℃烧制12小时；覆膜，点孔，刮泥，干燥，成品。本发明通过采用特定的原料组成配合特殊的制备工艺，在确保产品成品率、等静压强度和抗热震性等性能的同时，有效提高了产品的孔隙度和中值孔径，所制备的产品孔隙度为60‑70％，中值孔径15～20μm，能满足汽油车国六排放标准的使用需求。
Preparation method of cordierite honeycomb ceramic carrier with porosity of 60% or above
The invention discloses a preparation method of a cordierite honeycomb ceramic carrier with the porosity of 60% or above. The preparation method comprises the following steps: inspecting, screening and preparing raw materials; mixing the materials; kneading mud in a mud kneading machine, roughly smelting and sieving, aging, refining and sieving; extruding and molding to obtain a honeycomb ceramic carrier green body; drying and shaping the honeycomb ceramic carrier green body; cutting and firing the dried carrier to obtain a cordierite honeycomb ceramic carrier; heating at a heating rate of 10-50 DEG C, and firing at 1410 +/-5 DEG C for 12 hours; and laminating, punching, scraping mud, and drying to obtain a finished product. The specific raw material composition is matched with a special preparation process, the porosity and the median pore diameter of the product are effectively improved while the product yield, the isostatic pressing strength, the thermal shock resistance and other properties are ensured, the porosity of the prepared product is 60-70%, the median pore diameter is 15-20 microns, and the use requirement of the gasoline car national sixth emission standard can be met.
本发明公开了一种具有60％以上的孔隙度的堇青石蜂窝陶瓷载体的制备方法，包括原材料的检验、筛选和制备；混料；在捏泥机中进行捏泥，粗炼过筛，陈腐、精炼过筛；挤出成型制得蜂窝陶瓷载体生坯；蜂窝陶瓷载体生坯进行干燥定型；干燥后的载体经切割、烧制得到堇青石质蜂窝陶瓷载体；烧制采用10‑50℃升温速率升温，1410±5℃烧制12小时；覆膜，点孔，刮泥，干燥，成品。本发明通过采用特定的原料组成配合特殊的制备工艺，在确保产品成品率、等静压强度和抗热震性等性能的同时，有效提高了产品的孔隙度和中值孔径，所制备的产品孔隙度为60‑70％，中值孔径15～20μm，能满足汽油车国六排放标准的使用需求。
Preparation method of cordierite honeycomb ceramic carrier with porosity of 60% or above
一种具有60％以上的孔隙度的堇青石蜂窝陶瓷载体的制备方法
ZENG JIANHONG (Autor:in) / FENG JIADI (Autor:in)
13.09.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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