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Preparation method and application of corrosion-resistant silicon carbide ceramic
The invention discloses a preparation method and application of corrosion-resistant silicon carbide ceramic, and aims to solve the technical problems of complex sintering process and high cost of the corrosion-resistant silicon carbide ceramic in the current aluminum oxide production. The preparation method comprises the following steps: mixing 85-90 parts of alpha-SiC micro powder, 5-9 parts of beta-SiC micro powder, 1-1.2 parts of a sintering aid, 3.5-5 parts of a dispersing agent and 0.3-0.5 part of a binder to obtain a ground mixture; carrying out ball milling on the ground mixture to obtain slurry; carrying out spray drying and granulation on the slurry; carrying out pressureless sintering on the powder obtained by granulation; the material prepared by the preparation method of the corrosion-resistant silicon carbide ceramic is applied to aluminum oxide production. The preparation method is low in cost and easy to operate; the method does not generate secondary pollution, does not discharge waste gas, waste liquid and waste gas, is environment-friendly and is suitable for large-scale production.
本发明公开了一种耐腐蚀碳化硅陶瓷制备方法及其应用，旨在解决目前氧化铝生产中耐腐蚀碳化硅陶瓷烧结工艺复杂、成本高的技术问题的技术问题。本发明的制备方法为：取α‑SiC微粉85～90份、β‑SiC微粉5～9份、烧结助剂1～1.2份、分散剂3.5～5份、粘结剂0.3～0.5份，混合得研磨混合料；将所述研磨混合料球磨得浆料；将所述浆料喷雾干燥，造粒；将所述造粒所得的粉料无压烧结；并将所述的耐腐蚀碳化硅陶瓷制备方法制得的材料在氧化铝生产中应用。本发明的制备方法成本低、操作简单；不产生二次污染，无废气、废液及废气排放，对环境友好，适合大规模生产。
Preparation method and application of corrosion-resistant silicon carbide ceramic
The invention discloses a preparation method and application of corrosion-resistant silicon carbide ceramic, and aims to solve the technical problems of complex sintering process and high cost of the corrosion-resistant silicon carbide ceramic in the current aluminum oxide production. The preparation method comprises the following steps: mixing 85-90 parts of alpha-SiC micro powder, 5-9 parts of beta-SiC micro powder, 1-1.2 parts of a sintering aid, 3.5-5 parts of a dispersing agent and 0.3-0.5 part of a binder to obtain a ground mixture; carrying out ball milling on the ground mixture to obtain slurry; carrying out spray drying and granulation on the slurry; carrying out pressureless sintering on the powder obtained by granulation; the material prepared by the preparation method of the corrosion-resistant silicon carbide ceramic is applied to aluminum oxide production. The preparation method is low in cost and easy to operate; the method does not generate secondary pollution, does not discharge waste gas, waste liquid and waste gas, is environment-friendly and is suitable for large-scale production.
本发明公开了一种耐腐蚀碳化硅陶瓷制备方法及其应用，旨在解决目前氧化铝生产中耐腐蚀碳化硅陶瓷烧结工艺复杂、成本高的技术问题的技术问题。本发明的制备方法为：取α‑SiC微粉85～90份、β‑SiC微粉5～9份、烧结助剂1～1.2份、分散剂3.5～5份、粘结剂0.3～0.5份，混合得研磨混合料；将所述研磨混合料球磨得浆料；将所述浆料喷雾干燥，造粒；将所述造粒所得的粉料无压烧结；并将所述的耐腐蚀碳化硅陶瓷制备方法制得的材料在氧化铝生产中应用。本发明的制备方法成本低、操作简单；不产生二次污染，无废气、废液及废气排放，对环境友好，适合大规模生产。
Preparation method and application of corrosion-resistant silicon carbide ceramic
耐腐蚀碳化硅陶瓷制备方法及其应用
MENG DE'AN (author) / LIU MIAO (author) / WANG CHENGBIN (author)
2021-07-06
Patent
Electronic Resource
Chinese
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