Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Beta-silicon carbide ceramic membrane DPF unit and preparation method thereof
The invention provides a beta-silicon carbide ceramic membrane DPF unit and a preparation method thereof, and belongs to the technical field of inorganic non-metallic materials. The preparation method comprises the following specific steps: S1, weighing the raw materials beta-silicon carbide, silicon powder, an adhesive and water in parts by weight, and uniformly mixing to obtain a mixture; wherein the raw materials comprise the following components in parts by weight: 100 parts of beta-silicon carbide coarse powder, 5-10 parts of beta-silicon carbide fine powder, 5-10 parts of silicon powder, 15-20 parts of a binder and 20-30 parts of water; s2, carrying out mechanical stirring, vacuum pugging and aging on the mixture to obtain a green body material; s3, carrying out extrusion molding on the green blank material through a vacuum extruder to obtain a semi-finished product; and S4, the semi-finished product is subjected to a drying process, a glue discharging process and a sintering process, and the beta-silicon carbide ceramic membrane DPF unit is obtained. The DPF unit is high in apparent porosity, high in high temperature resistance and high in mechanical strength, and is particularly suitable for being used as a DPF unit for purifying soot particles of a diesel engine.
本发明提供了一种β‑碳化硅陶瓷膜DPF单元及其制备方法，属于无机非金属材料技术领域。其制备方法包括以具体步骤：S1、将原料β‑碳化硅、硅粉、粘合剂、水按照重量份称取，混合均匀，得混合料；其中，原料按重量份计为：β‑碳化硅粗粉100份，β‑碳化硅细粉5‑10份，硅粉5‑10份，粘结剂15‑20份，水20‑30份；S2、将混合料经过机械搅拌、真空练泥、陈腐得到生坯料；S3、将生坯料经过真空挤出机挤压成型，得到半成品；S4、将半成品经过干燥工艺、排胶工艺、烧结工艺，得到β‑碳化硅陶瓷膜DPF单元。该DPF单元显气孔率高、耐高温性强、机械强度高，特别适宜作柴油机碳烟颗粒净化用DPF单元使用。
Beta-silicon carbide ceramic membrane DPF unit and preparation method thereof
The invention provides a beta-silicon carbide ceramic membrane DPF unit and a preparation method thereof, and belongs to the technical field of inorganic non-metallic materials. The preparation method comprises the following specific steps: S1, weighing the raw materials beta-silicon carbide, silicon powder, an adhesive and water in parts by weight, and uniformly mixing to obtain a mixture; wherein the raw materials comprise the following components in parts by weight: 100 parts of beta-silicon carbide coarse powder, 5-10 parts of beta-silicon carbide fine powder, 5-10 parts of silicon powder, 15-20 parts of a binder and 20-30 parts of water; s2, carrying out mechanical stirring, vacuum pugging and aging on the mixture to obtain a green body material; s3, carrying out extrusion molding on the green blank material through a vacuum extruder to obtain a semi-finished product; and S4, the semi-finished product is subjected to a drying process, a glue discharging process and a sintering process, and the beta-silicon carbide ceramic membrane DPF unit is obtained. The DPF unit is high in apparent porosity, high in high temperature resistance and high in mechanical strength, and is particularly suitable for being used as a DPF unit for purifying soot particles of a diesel engine.
本发明提供了一种β‑碳化硅陶瓷膜DPF单元及其制备方法，属于无机非金属材料技术领域。其制备方法包括以具体步骤：S1、将原料β‑碳化硅、硅粉、粘合剂、水按照重量份称取，混合均匀，得混合料；其中，原料按重量份计为：β‑碳化硅粗粉100份，β‑碳化硅细粉5‑10份，硅粉5‑10份，粘结剂15‑20份，水20‑30份；S2、将混合料经过机械搅拌、真空练泥、陈腐得到生坯料；S3、将生坯料经过真空挤出机挤压成型，得到半成品；S4、将半成品经过干燥工艺、排胶工艺、烧结工艺，得到β‑碳化硅陶瓷膜DPF单元。该DPF单元显气孔率高、耐高温性强、机械强度高，特别适宜作柴油机碳烟颗粒净化用DPF单元使用。
Beta-silicon carbide ceramic membrane DPF unit and preparation method thereof
一种β-碳化硅陶瓷膜DPF单元及其制备方法
ZHAO XUAN (Autor:in) / MI JIANXIN (Autor:in) / XU MAN (Autor:in) / XU JIE (Autor:in) / XU WEI (Autor:in) / HAN XINYOU (Autor:in) / ZHU LI (Autor:in) / LI XIANG (Autor:in) / XIAO YUTONG (Autor:in)
14.05.2024
Patent
Elektronische Ressource
Chinesisch
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