Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a silicon nitride wear-resistant sheet prepared based on an atmosphere sintering method. According to the silicon nitride wear-resistant sheet prepared based on the atmospheresintering method, silicon nitride (Si3N4), titanium carbonitride (TiCN) and a sintering aid are used as raw materials. The silicon nitride wear-resistant sheet prepared based on the atmosphere sintering method is prepared by the following steps: uniformly mixing silicon nitride (Si3N4), titanium carbonitride (TiCN) and a sintering aid to obtain silicon nitride formula powder, carrying out dry pressing molding on the formula powder in a steel mold to obtain a wear-resistant sheet forming blank, carrying out plastic package on the silicon nitride wear-resistant sheet forming blank, carrying outcold isostatic pressing treatment under the condition of 90-150MPa, keeping the pressure for 30-90S, sintering for 2-4h under the condition of 1650-1800 DEG C in an inert or reducing gas atmosphere of1-10MPa, cooling the ceramic chip sintered in the atmosphere, and carrying out vibration grinding and polishing washing in water for 2-8h. Compared with the prior art, by optimizing the formula and technological parameters, the prepared silicon nitride wear-resistant sheet has the advantages of being good in wear resistance, uniform in size, high in yield and the like, and is widely applied to wear-resistant patches on the surfaces of pipelines and stock bins of iron and steel plants, ports and mining machinery.
本发明公开了一种基于气氛烧结法制备的氮化硅耐磨片，所述基于气氛烧结法制备的氮化硅耐磨片以氮化硅(SiN)、碳氮化钛(TiCN)、助烧剂为原料，所述基于气氛烧结法制备的氮化硅耐磨片是将氮化硅(SiN)、碳氮化钛(TiCN)、助烧剂混合均匀得到氮化硅配方粉，将所述配方粉在钢模中干压成型得到耐磨片成型坯体，将所述氮化硅耐磨片成型坯体进行塑封，在90‑150MPa条件下进行冷等静压处理，保压时间为30‑90S，在1‑10MPa惰性或还原气体氛围中1650‑1800℃的条件下烧结2‑4小时，气氛烧结后的瓷片经冷却，在水中振磨抛洗2‑8小时制得。与现有技术相比，本发明通过优化配方和工艺参数，制得的氮化硅耐磨片具有耐磨性好、尺寸均匀、成品率高等优点，广泛应用于钢铁厂、港口、矿山机械的管道和料仓表面的耐磨贴片。
The invention discloses a silicon nitride wear-resistant sheet prepared based on an atmosphere sintering method. According to the silicon nitride wear-resistant sheet prepared based on the atmospheresintering method, silicon nitride (Si3N4), titanium carbonitride (TiCN) and a sintering aid are used as raw materials. The silicon nitride wear-resistant sheet prepared based on the atmosphere sintering method is prepared by the following steps: uniformly mixing silicon nitride (Si3N4), titanium carbonitride (TiCN) and a sintering aid to obtain silicon nitride formula powder, carrying out dry pressing molding on the formula powder in a steel mold to obtain a wear-resistant sheet forming blank, carrying out plastic package on the silicon nitride wear-resistant sheet forming blank, carrying outcold isostatic pressing treatment under the condition of 90-150MPa, keeping the pressure for 30-90S, sintering for 2-4h under the condition of 1650-1800 DEG C in an inert or reducing gas atmosphere of1-10MPa, cooling the ceramic chip sintered in the atmosphere, and carrying out vibration grinding and polishing washing in water for 2-8h. Compared with the prior art, by optimizing the formula and technological parameters, the prepared silicon nitride wear-resistant sheet has the advantages of being good in wear resistance, uniform in size, high in yield and the like, and is widely applied to wear-resistant patches on the surfaces of pipelines and stock bins of iron and steel plants, ports and mining machinery.
本发明公开了一种基于气氛烧结法制备的氮化硅耐磨片，所述基于气氛烧结法制备的氮化硅耐磨片以氮化硅(SiN)、碳氮化钛(TiCN)、助烧剂为原料，所述基于气氛烧结法制备的氮化硅耐磨片是将氮化硅(SiN)、碳氮化钛(TiCN)、助烧剂混合均匀得到氮化硅配方粉，将所述配方粉在钢模中干压成型得到耐磨片成型坯体，将所述氮化硅耐磨片成型坯体进行塑封，在90‑150MPa条件下进行冷等静压处理，保压时间为30‑90S，在1‑10MPa惰性或还原气体氛围中1650‑1800℃的条件下烧结2‑4小时，气氛烧结后的瓷片经冷却，在水中振磨抛洗2‑8小时制得。与现有技术相比，本发明通过优化配方和工艺参数，制得的氮化硅耐磨片具有耐磨性好、尺寸均匀、成品率高等优点，广泛应用于钢铁厂、港口、矿山机械的管道和料仓表面的耐磨贴片。
Silicon nitride wear-resistant sheet prepared based on atmosphere sintering method
一种基于气氛烧结法制备的氮化硅耐磨片
QU YOUFU (Autor:in)
01.09.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Preparation method of high-strength and high-hardness silicon nitride wear-resistant sheet
| Europäisches Patentamt | 2020
Silicon nitride wear resistant member and method for producing silicon nitride sintered compact
| Europäisches Patentamt | 2017
Silicon nitride substrate material prepared based on hot -pressing sintering method
| Europäisches Patentamt | 2020
SILICON NITRIDE WEAR RESISTANT MEMBER AND METHOD FOR PRODUCING SILICON NITRIDE SINTERED COMPACT
| Europäisches Patentamt | 2016
| Europäisches Patentamt | 2023