Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method for gel injection molding of pressureless sintered silicon carbide
The invention relates to a pressureless sintered silicon carbide gel injection molding preparation method which comprises the following steps: mixing and dispersing modified silicon carbide ultrafine powder, a monomer and a cross-linking agent into water, stirring, adding an initiator, carbon black and a dispersing agent, uniformly mixing, and defoaming in vacuum to obtain mixed slurry; adding the mixed slurry into a mold, immersing the bottom of the mold filled with the mixed slurry into a freezing bath, after the reaction is completed, demolding to obtain a wet blank, drying the wet blank to obtain a dry blank, and carrying out pressureless sintering on the dry blank to obtain the silicon carbide ceramic. The method has the effect of improving the drying performance of pressureless sintering gel injection molding silicon carbide.
本申请涉及一种无压烧结碳化硅凝胶注成型的制备方法，包括如下步骤：将改性碳化硅超细粉、单体和交联剂混合分散至水中，搅拌后加入引发剂、炭黑和分散剂，混合均匀后真空除泡，得到混合浆料；将混合浆料添加至模具中，将装有混合浆料的模具底部浸入冷冻浴中，待反应完成后，脱模得到湿坯，将湿坯干燥后得到干坯，将干坯经过无压烧结得到碳化硅陶瓷。本申请具有提升无压烧结凝胶注成型碳化硅干燥性能的效果。
Preparation method for gel injection molding of pressureless sintered silicon carbide
The invention relates to a pressureless sintered silicon carbide gel injection molding preparation method which comprises the following steps: mixing and dispersing modified silicon carbide ultrafine powder, a monomer and a cross-linking agent into water, stirring, adding an initiator, carbon black and a dispersing agent, uniformly mixing, and defoaming in vacuum to obtain mixed slurry; adding the mixed slurry into a mold, immersing the bottom of the mold filled with the mixed slurry into a freezing bath, after the reaction is completed, demolding to obtain a wet blank, drying the wet blank to obtain a dry blank, and carrying out pressureless sintering on the dry blank to obtain the silicon carbide ceramic. The method has the effect of improving the drying performance of pressureless sintering gel injection molding silicon carbide.
本申请涉及一种无压烧结碳化硅凝胶注成型的制备方法，包括如下步骤：将改性碳化硅超细粉、单体和交联剂混合分散至水中，搅拌后加入引发剂、炭黑和分散剂，混合均匀后真空除泡，得到混合浆料；将混合浆料添加至模具中，将装有混合浆料的模具底部浸入冷冻浴中，待反应完成后，脱模得到湿坯，将湿坯干燥后得到干坯，将干坯经过无压烧结得到碳化硅陶瓷。本申请具有提升无压烧结凝胶注成型碳化硅干燥性能的效果。
Preparation method for gel injection molding of pressureless sintered silicon carbide
一种无压烧结碳化硅凝胶注成型的制备方法
FANG RENDE (Autor:in) / WANG ZHEN (Autor:in) / YAN YONGJIE (Autor:in)
11.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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