Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of gel injection pressureless sintering silicon carbide ceramic block hole heat exchanger
The invention relates to a preparation method of a gel injection pressureless sintering silicon carbide ceramic block hole heat exchanger, which comprises the following steps: (1) adding a monomer and a cross-linking agent into deionized water, stirring and dissolving, and then adding a dispersing agent, a defoaming agent, tetramethylammonium hydroxide, silicon carbide powder and a sintering aid to obtain slurry; (2) adding an instantizer into the prepared slurry, carrying out ball mixing, carrying out vacuum defoaming, adding a catalyst and an initiator, transferring the mixture into a metal rod mold, and carrying out curing molding, so as to prepare a prefabricated matrix; (3) soaking the prefabricated substrate in a triethylene glycol solution, safely and quickly drying and demoulding the blank in the liquid to obtain a demoulded product, and performing vacuum heating to obtain the block hole heat exchanger; the monomer comprises N, N '-methylene bisacrylamide, the cross-linking agent comprises methylene bisacrylamide, and the instantizer comprises Urea. The preparation method has the advantages that the solid content of slurry is increased, collapse of a green body in the primary drying process is prevented, and therefore the overall product quality of the prepared ceramic block hole heat exchanger is improved.
本申请涉及一种凝胶注无压烧结碳化硅陶瓷块孔换热器的制备方法，包括如下步骤：（1）将单体与交联剂添加至去离子水中，搅拌溶解后，加入分散剂、消泡剂、四甲基氢氧化铵、碳化硅粉体与烧结助剂得到浆料；（2）将速溶剂加入至上述制备得到的浆料中，球混后真空脱泡，再加入催化剂与引发剂，转移至金属杆模具中固化成型，制备得到预制基体；（3）将预制基体浸泡在三甘醇溶液中，使坯体在液体中安全快速干燥、脱模，得到脱模产品，真空加热得到块孔换热器；所述单体包括N,N’‑亚甲基双丙烯酰胺，所述交联剂包括亚甲基双丙烯酰胺，所述速溶剂包括尿素。本申请具有提升浆料固含量、防止坯体初级干燥过程中塌陷，从而提升制备得到的陶瓷块孔换热器整体产品质量的效果。
Preparation method of gel injection pressureless sintering silicon carbide ceramic block hole heat exchanger
The invention relates to a preparation method of a gel injection pressureless sintering silicon carbide ceramic block hole heat exchanger, which comprises the following steps: (1) adding a monomer and a cross-linking agent into deionized water, stirring and dissolving, and then adding a dispersing agent, a defoaming agent, tetramethylammonium hydroxide, silicon carbide powder and a sintering aid to obtain slurry; (2) adding an instantizer into the prepared slurry, carrying out ball mixing, carrying out vacuum defoaming, adding a catalyst and an initiator, transferring the mixture into a metal rod mold, and carrying out curing molding, so as to prepare a prefabricated matrix; (3) soaking the prefabricated substrate in a triethylene glycol solution, safely and quickly drying and demoulding the blank in the liquid to obtain a demoulded product, and performing vacuum heating to obtain the block hole heat exchanger; the monomer comprises N, N '-methylene bisacrylamide, the cross-linking agent comprises methylene bisacrylamide, and the instantizer comprises Urea. The preparation method has the advantages that the solid content of slurry is increased, collapse of a green body in the primary drying process is prevented, and therefore the overall product quality of the prepared ceramic block hole heat exchanger is improved.
本申请涉及一种凝胶注无压烧结碳化硅陶瓷块孔换热器的制备方法，包括如下步骤：（1）将单体与交联剂添加至去离子水中，搅拌溶解后，加入分散剂、消泡剂、四甲基氢氧化铵、碳化硅粉体与烧结助剂得到浆料；（2）将速溶剂加入至上述制备得到的浆料中，球混后真空脱泡，再加入催化剂与引发剂，转移至金属杆模具中固化成型，制备得到预制基体；（3）将预制基体浸泡在三甘醇溶液中，使坯体在液体中安全快速干燥、脱模，得到脱模产品，真空加热得到块孔换热器；所述单体包括N,N’‑亚甲基双丙烯酰胺，所述交联剂包括亚甲基双丙烯酰胺，所述速溶剂包括尿素。本申请具有提升浆料固含量、防止坯体初级干燥过程中塌陷，从而提升制备得到的陶瓷块孔换热器整体产品质量的效果。
Preparation method of gel injection pressureless sintering silicon carbide ceramic block hole heat exchanger
一种凝胶注无压烧结碳化硅陶瓷块孔换热器的制备方法
WANG ZHEN (Autor:in) / FANG RENDE (Autor:in) / YAN YONGJIE (Autor:in) / TANG QIAN (Autor:in)
16.07.2024
Patent
Elektronische Ressource
Chinesisch
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