Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Silicon carbide ceramic material, ceramic mold and preparation method thereof
The invention discloses a silicon carbide ceramic material, a ceramic mold and a preparation method of the silicon carbide ceramic material. The silicon carbide ceramic material comprises 75-90% of silicon carbide micro powder, 2-5% of a binder and 5-20% of a sintering aid, wherein when the cumulative particle size distribution percentage of the silicon carbide micro powder reaches 50%, the corresponding particle size is 0.2-1.0 [mu] m. The preparation method of the ceramic mold comprises the following steps: grinding various raw materials of the silicon carbide ceramic material according to a preset mass ratio; mixing the ground raw materials to form powder; carrying out pre-pressing molding on the powder by utilizing a preset mold to form a blank; and firing the blank material to form the ceramic mold. The silicon carbide is adopted as the main raw material, the hardness of the silicon carbide is far higher than that of graphite, the wear resistance is good, meanwhile, the C-Si bond energy of the silicon carbide is large, the silicon carbide is more difficult to oxidize than that of the graphite under the high-temperature condition, pits generated due to oxidation and falling off are reduced, the service life of the mold is effectively prolonged, and the cost input caused by later maintenance is reduced.
本申请公开一种碳化硅陶瓷材料、陶瓷模具及其制备方法，碳化硅陶瓷材料包括：碳化硅微粉75‑90％、粘结剂2‑5％及烧结助剂5‑20％；其中，所述碳化硅微粉的累计粒度分布百分数达到50％时所对应的粒径为0.2‑1.0μm。陶瓷模具的制备方法包括：按预设的质量比例将碳化硅陶瓷材料的各项原料进行研磨；混合研磨后的所述原料，形成粉料；利用预设的模具对所述粉料进行预压成型，形成坯料；将所述坯料进行烧制形成所述陶瓷模具。通过采用碳化硅作为主要原料，碳化硅的硬度远较石墨高，耐磨损性能好，同时，碳化硅的C‑Si键能较大，在高温情况下，相比石墨更难氧化，减少了因为氧化及脱落产生的麻点，有效提高模具寿命，减少后期维护带来的成本投入。
Silicon carbide ceramic material, ceramic mold and preparation method thereof
The invention discloses a silicon carbide ceramic material, a ceramic mold and a preparation method of the silicon carbide ceramic material. The silicon carbide ceramic material comprises 75-90% of silicon carbide micro powder, 2-5% of a binder and 5-20% of a sintering aid, wherein when the cumulative particle size distribution percentage of the silicon carbide micro powder reaches 50%, the corresponding particle size is 0.2-1.0 [mu] m. The preparation method of the ceramic mold comprises the following steps: grinding various raw materials of the silicon carbide ceramic material according to a preset mass ratio; mixing the ground raw materials to form powder; carrying out pre-pressing molding on the powder by utilizing a preset mold to form a blank; and firing the blank material to form the ceramic mold. The silicon carbide is adopted as the main raw material, the hardness of the silicon carbide is far higher than that of graphite, the wear resistance is good, meanwhile, the C-Si bond energy of the silicon carbide is large, the silicon carbide is more difficult to oxidize than that of the graphite under the high-temperature condition, pits generated due to oxidation and falling off are reduced, the service life of the mold is effectively prolonged, and the cost input caused by later maintenance is reduced.
本申请公开一种碳化硅陶瓷材料、陶瓷模具及其制备方法，碳化硅陶瓷材料包括：碳化硅微粉75‑90％、粘结剂2‑5％及烧结助剂5‑20％；其中，所述碳化硅微粉的累计粒度分布百分数达到50％时所对应的粒径为0.2‑1.0μm。陶瓷模具的制备方法包括：按预设的质量比例将碳化硅陶瓷材料的各项原料进行研磨；混合研磨后的所述原料，形成粉料；利用预设的模具对所述粉料进行预压成型，形成坯料；将所述坯料进行烧制形成所述陶瓷模具。通过采用碳化硅作为主要原料，碳化硅的硬度远较石墨高，耐磨损性能好，同时，碳化硅的C‑Si键能较大，在高温情况下，相比石墨更难氧化，减少了因为氧化及脱落产生的麻点，有效提高模具寿命，减少后期维护带来的成本投入。
Silicon carbide ceramic material, ceramic mold and preparation method thereof
碳化硅陶瓷材料、陶瓷模具及其制备方法
ZHANG JINDONG (Autor:in) / YANG WEI (Autor:in) / CHEN ZHIBIN (Autor:in)
13.05.2022
Patent
Elektronische Ressource
Chinesisch
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