Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-expansion silicon carbide diesel engine tail gas particle trap and preparation method thereof
The invention provides a low-expansion silicon carbide diesel engine tail gas particle trap and a preparation method thereof. The silicon carbide diesel engine tail gas particle trap comprises the following raw materials in percentage by mass: 12-13% of silicon carbide powder A; 30%-45.5% of silicon carbide powder B; 3%-13% of boron glass powder; 5%-10% of fused quartz; 8% of graphite; 2% of a lubricant; 20% of water; the preparation method comprises the following steps: burdening, mixing, kneading, screening, forming, drying, cutting, sintering, splicing, post-processing, skin grafting, hole plugging and fettling. Through the synergistic effect of all the components, the expansion coefficient of the silicon carbide diesel engine tail gas particle trap is reduced to 3.55 * 10 <-6 > DEG C, boron glass powder prepared in advance replaces direct use of boron oxide to serve as a sintering aid, boron oxide is evenly dissolved in the glass powder in advance, and when the temperature rises to 1000 DEG C, due to the fact that the viscosity of liquefied glass powder is high, the temperature of the silicon carbide diesel engine tail gas particle trap can be lowered to 3.55 * 10 <-6 > DEG C; and the phenomenon of flowing is avoided.
本发明提供了一种低膨胀碳化硅柴油机尾气颗粒捕集器及其制备方法，所述的碳化硅柴油机尾气颗粒捕集器包括以下质量分数的原料：碳化硅粉A12～13％；碳化硅粉B30％～45.5％；硼玻璃粉3％～13％；熔融石英5％～10％；石墨8％；润滑剂2％；水20％；所述的制备方法包括以下步骤：配料、混合、捏合、过网、成型、干燥、切割、烧成、拼接、后加工、植皮、堵孔、修坯。通过各组分之间的协同作用，使碳化硅柴油机尾气颗粒捕集器的膨胀系数降低到3.55*10‑6℃，采用预先制备硼玻璃粉代替直接使用氧化硼作为烧结助剂，使氧化硼预先均匀地溶解在玻璃粉中，当温度升高达到1000℃时由于液化后的粘度较高，避免出现流淌的现象。
Low-expansion silicon carbide diesel engine tail gas particle trap and preparation method thereof
The invention provides a low-expansion silicon carbide diesel engine tail gas particle trap and a preparation method thereof. The silicon carbide diesel engine tail gas particle trap comprises the following raw materials in percentage by mass: 12-13% of silicon carbide powder A; 30%-45.5% of silicon carbide powder B; 3%-13% of boron glass powder; 5%-10% of fused quartz; 8% of graphite; 2% of a lubricant; 20% of water; the preparation method comprises the following steps: burdening, mixing, kneading, screening, forming, drying, cutting, sintering, splicing, post-processing, skin grafting, hole plugging and fettling. Through the synergistic effect of all the components, the expansion coefficient of the silicon carbide diesel engine tail gas particle trap is reduced to 3.55 * 10 <-6 > DEG C, boron glass powder prepared in advance replaces direct use of boron oxide to serve as a sintering aid, boron oxide is evenly dissolved in the glass powder in advance, and when the temperature rises to 1000 DEG C, due to the fact that the viscosity of liquefied glass powder is high, the temperature of the silicon carbide diesel engine tail gas particle trap can be lowered to 3.55 * 10 <-6 > DEG C; and the phenomenon of flowing is avoided.
本发明提供了一种低膨胀碳化硅柴油机尾气颗粒捕集器及其制备方法，所述的碳化硅柴油机尾气颗粒捕集器包括以下质量分数的原料：碳化硅粉A12～13％；碳化硅粉B30％～45.5％；硼玻璃粉3％～13％；熔融石英5％～10％；石墨8％；润滑剂2％；水20％；所述的制备方法包括以下步骤：配料、混合、捏合、过网、成型、干燥、切割、烧成、拼接、后加工、植皮、堵孔、修坯。通过各组分之间的协同作用，使碳化硅柴油机尾气颗粒捕集器的膨胀系数降低到3.55*10‑6℃，采用预先制备硼玻璃粉代替直接使用氧化硼作为烧结助剂，使氧化硼预先均匀地溶解在玻璃粉中，当温度升高达到1000℃时由于液化后的粘度较高，避免出现流淌的现象。
Low-expansion silicon carbide diesel engine tail gas particle trap and preparation method thereof
一种低膨胀碳化硅柴油机尾气颗粒捕集器及其制备方法
PENG HONG (Autor:in) / ZHU ZENGZAN (Autor:in) / LI QIUSHENG (Autor:in) / XIE RENFEI (Autor:in) / JIANG ZIHAO (Autor:in) / SUN WEI (Autor:in) / XU DI (Autor:in)
26.05.2023
Patent
Elektronische Ressource
Chinesisch
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