Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method and preparation system of wear-resistant silicon nitride ceramic material
The invention relates to the field of wear-resistant silicon nitride ceramic production, in particular to a preparation method and a preparation system of a wear-resistant silicon nitride ceramic material, and the preparation method comprises the following steps: S1, fully mixing 10-30 parts of additive powder, 20-35 parts of silicon powder, 5-10 parts of alpha-alumina powder and 5-10 parts of yttrium oxide to prepare a biscuit; and S2, the obtained biscuit is sintered in a nitrogen atmosphere, the sintering temperature is controlled to be 1600-1900 DEG C, and the nitrogen pressure is controlled to be 0.5-10 MPa. A plurality of methods can be adopted for preparing the biscuit in the step S1, and the most common methods are dry pressing molding, casting molding and extrusion molding. In order to meet the requirements of a forming process, various additives, such as polyvinyl alcohol (PVA), polyvinyl butyral (PVB), polyacrylate (PAA), cellulose derivatives and the like, can be added in a biscuit preparation process.
本发明涉及耐磨氮化硅陶瓷生产领域，具体的是一种耐磨氮化硅陶瓷材料的制备方法及其制备系统，包括以下步骤：S1、将添加剂粉体10‑30份，硅粉20‑35份，a‑氧化铝粉5‑10份，氧化钇5‑10份充分混合，制成素坯；S2、将所得到的素坯在氮气气氛下烧结，烧结温度控制1600℃‑1900℃，氮气压力控制0.5‑10MPa。步骤S1中制成素坯所采用的制备工艺可采用多种方法，最常用的是干压成型、浇注成型和挤出成型。为满足成型工艺的要求，可以在制成素坯的工艺中加入多种添加剂，如聚乙烯醇(PVA)、聚乙烯缩丁醛(PVB)、聚丙烯酸盐(PAA)、纤维素衍生物等。
Preparation method and preparation system of wear-resistant silicon nitride ceramic material
The invention relates to the field of wear-resistant silicon nitride ceramic production, in particular to a preparation method and a preparation system of a wear-resistant silicon nitride ceramic material, and the preparation method comprises the following steps: S1, fully mixing 10-30 parts of additive powder, 20-35 parts of silicon powder, 5-10 parts of alpha-alumina powder and 5-10 parts of yttrium oxide to prepare a biscuit; and S2, the obtained biscuit is sintered in a nitrogen atmosphere, the sintering temperature is controlled to be 1600-1900 DEG C, and the nitrogen pressure is controlled to be 0.5-10 MPa. A plurality of methods can be adopted for preparing the biscuit in the step S1, and the most common methods are dry pressing molding, casting molding and extrusion molding. In order to meet the requirements of a forming process, various additives, such as polyvinyl alcohol (PVA), polyvinyl butyral (PVB), polyacrylate (PAA), cellulose derivatives and the like, can be added in a biscuit preparation process.
本发明涉及耐磨氮化硅陶瓷生产领域，具体的是一种耐磨氮化硅陶瓷材料的制备方法及其制备系统，包括以下步骤：S1、将添加剂粉体10‑30份，硅粉20‑35份，a‑氧化铝粉5‑10份，氧化钇5‑10份充分混合，制成素坯；S2、将所得到的素坯在氮气气氛下烧结，烧结温度控制1600℃‑1900℃，氮气压力控制0.5‑10MPa。步骤S1中制成素坯所采用的制备工艺可采用多种方法，最常用的是干压成型、浇注成型和挤出成型。为满足成型工艺的要求，可以在制成素坯的工艺中加入多种添加剂，如聚乙烯醇(PVA)、聚乙烯缩丁醛(PVB)、聚丙烯酸盐(PAA)、纤维素衍生物等。
Preparation method and preparation system of wear-resistant silicon nitride ceramic material
一种耐磨氮化硅陶瓷材料的制备方法及其制备系统
TANG FEI (Autor:in) / JIANG XUEXIN (Autor:in)
06.08.2024
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2023
Preparation method of nitride-combined silicon carbide wear-resistant ceramic part for slurry pump
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2023
Wear-resistant ceramic material and preparation method thereof
| Europäisches Patentamt | 2015