Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The preparation method comprises the following steps: optimizing the particle size matching of aggregates, increasing 5-11% of SiC fine particles with the average particle size of 3-6 microns, and improving the basic porosity of a carrier by more than 5.5%, so that the addition amount of a pore forming agent required by a unit strip with the porosity of more than 60% is less than 26%; the problem of product cracking caused by the coke discharge amount is greatly reduced, by changing the type of the pore-forming agent, starch is changed into a plastic pore-forming agent with better fluidity, so that the pug extrusion performance of a high-porosity product is equivalent to the pug extrusion performance when the pore-forming agent is not added, and the extrusion length per hour is 23-25m.
本发明公开了一种易挤出成型的高孔隙硅结合碳化硅及其制备方法，通过优化骨料粒度搭配，增加5～11％的平均粒径3～6μmSiC细颗粒，载体的基础孔隙率提高＞5.5％，使得孔隙率超过60％的单元条所需造孔剂的添加量＜26％，大幅降低排焦量导致的产品开裂问题，通过改变造孔剂的种类，由淀粉类换为流动性较优的塑料类造孔剂，使得高孔隙产品的泥料挤出性能与未添加造孔剂时的泥料挤出性能相当，每小时挤出长度为23～25m。
The preparation method comprises the following steps: optimizing the particle size matching of aggregates, increasing 5-11% of SiC fine particles with the average particle size of 3-6 microns, and improving the basic porosity of a carrier by more than 5.5%, so that the addition amount of a pore forming agent required by a unit strip with the porosity of more than 60% is less than 26%; the problem of product cracking caused by the coke discharge amount is greatly reduced, by changing the type of the pore-forming agent, starch is changed into a plastic pore-forming agent with better fluidity, so that the pug extrusion performance of a high-porosity product is equivalent to the pug extrusion performance when the pore-forming agent is not added, and the extrusion length per hour is 23-25m.
本发明公开了一种易挤出成型的高孔隙硅结合碳化硅及其制备方法，通过优化骨料粒度搭配，增加5～11％的平均粒径3～6μmSiC细颗粒，载体的基础孔隙率提高＞5.5％，使得孔隙率超过60％的单元条所需造孔剂的添加量＜26％，大幅降低排焦量导致的产品开裂问题，通过改变造孔剂的种类，由淀粉类换为流动性较优的塑料类造孔剂，使得高孔隙产品的泥料挤出性能与未添加造孔剂时的泥料挤出性能相当，每小时挤出长度为23～25m。
High-porosity silicon-bonded silicon carbide easy to extrude and mold and preparation method of high-porosity silicon-bonded silicon carbide
一种易挤出成型的高孔隙硅结合碳化硅及其制备方法
13.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Engineering porosity in silicon carbide ceramics
| British Library Online Contents | 2010
Preparation method of reaction-bonded silicon carbide
| Europäisches Patentamt | 2016